* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --gate-header-gradient: linear-gradient(to bottom, #5dbeef, #3a9bd9);
    --gate-subheader: #00838f;
    --gate-tab-active: #337ab7;
    --gate-tab-inactive: #fff;
    --gate-tab-hover: #e6e6e6;
    --btn-save: #1a8fc4;
    --btn-submit: #c0392b;
    --palette-header: #d35400;
    --border: #ccc;
}

@font-face {
    font-family: 'Open Sans';
    src: url('fonts/OpenSans-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

body {
    /* font-family: Arial, Helvetica, sans-serif; */
    /* font-family: 'Open Sans', Arial, Helvetica, sans-serif; */
    font-family: Arial, Helvetica, sans-serif;
    background: #fff;
    overflow: auto;
    font-size: 14px;
    user-select: none;
}

/* ============================================
   HOME PAGE LAYOUT
   ============================================ */
.upload-section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1px 1px 1px;
    position: relative;
}

/* — Unified Toolbar (nav + utils in one row) — */
.home-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 10px;
    background: rgba(0, 0, 0, 0.03);
    border-radius: 12px;
    margin-bottom: 12px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    flex-wrap: wrap;
    gap: 6px;
}

[data-theme="dark"] .home-toolbar {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.05);
}

.home-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    flex-wrap: wrap;
}

.home-nav a {
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.home-nav a:hover {
    transform: translateY(-1px);
}

.home-nav a.nav-analytics {
    color: #3498db;
}

.home-nav a.nav-bookmarks {
    color: #1abc9c;
}

.home-nav a.nav-mistakes {
    color: #e67e22;
}

.home-nav a.nav-library {
    color: #8e44ad;
}

.home-nav a.nav-analytics:hover {
    background: rgba(52, 152, 219, 0.1);
}

.home-nav a.nav-bookmarks:hover {
    background: rgba(26, 188, 156, 0.1);
}

.home-nav a.nav-mistakes:hover {
    background: rgba(230, 126, 34, 0.1);
}

.home-nav a.nav-library:hover {
    background: rgba(142, 68, 173, 0.1);
}

[data-theme="dark"] .home-nav a.nav-analytics {
    color: #5dade2;
}

[data-theme="dark"] .home-nav a.nav-bookmarks {
    color: #48c9b0;
}

[data-theme="dark"] .home-nav a.nav-mistakes {
    color: #f0b27a;
}

[data-theme="dark"] .home-nav a.nav-library {
    color: #c39bd3;
}

[data-theme="dark"] .home-nav a.nav-analytics:hover {
    background: rgba(93, 173, 226, 0.12);
}

[data-theme="dark"] .home-nav a.nav-bookmarks:hover {
    background: rgba(72, 201, 176, 0.12);
}

[data-theme="dark"] .home-nav a.nav-mistakes:hover {
    background: rgba(240, 178, 122, 0.12);
}

[data-theme="dark"] .home-nav a.nav-library:hover {
    background: rgba(195, 155, 211, 0.12);
}

/* — Utility buttons (right side) — */
.home-utils {
    display: flex;
    align-items: center;
    gap: 2px;
}

.util-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    padding: 5px 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 3px;
    white-space: nowrap;
}

.util-btn.data-btn-backup {
    color: #3498db;
}

.util-btn.data-btn-restore {
    color: #e74c3c;
}

.util-btn.data-btn-telegram {
    color: #9b59b6;
}

.util-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .util-btn:hover {
    background: rgba(255, 255, 255, 0.06);
}

.storage-badge {
    font-size: 11px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 3px 8px;
    border-radius: 8px;
    background: rgba(39, 174, 96, 0.1);
    color: #27ae60;
    white-space: nowrap;
}

/* — 3-Column Grid Layout — */
.home-layout-container {
    display: grid;
    grid-template-columns: 280px 1fr 280px;
    gap: 20px;
    align-items: start;
}

@media (max-width: 1100px) {
    .home-layout-container {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
}

/* — Sidebar — */
.home-sidebar {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* — Stat Cards (sidebar widgets) — */
.stat-card {
    border-radius: 12px !important;
    padding: 14px 14px !important;
    transition: all 0.3s ease;
    text-align: center;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .stat-card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.stat-card-label {
    font-size: 12px;
    color: #888;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    text-align: center;
}

[data-theme="dark"] .stat-card-label {
    color: #8888a0;
}

.stat-card-value {
    font-size: 22px;
    font-weight: 800;
    text-align: center;
    margin-top: 2px;
    margin-bottom: 4px;
}

/* Streak card */
.streak-tracker {
    background: rgba(26, 188, 156, 0.08) !important;
    border: 1px solid rgba(26, 188, 156, 0.2) !important;
}

/* Countdown card */
.gate-countdown {
    background: rgba(52, 152, 219, 0.08) !important;
    border: 1px solid rgba(52, 152, 219, 0.2) !important;
}

/* — Main Content Upload Card — */
.home-main-content {
    display: flex;
    flex-direction: column;
}

.upload-card {
    background: var(--card-bg, #fff);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 16px;
    padding: 35px 30px;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
}

[data-theme="dark"] .upload-card {
    background: var(--card-bg, #1e1e2d);
    border-color: rgba(255, 255, 255, 0.06);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.upload-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-color, #2c3e50);
    margin-bottom: 6px;
}

.upload-subtitle {
    font-size: 14px;
    color: #888;
    margin-bottom: 25px;
}

/* File input */
.file-input-wrapper {
    margin-bottom: 18px;
}

.file-input {
    display: none;
}

.file-label {
    display: inline-block;
    padding: 10px 24px;
    background: var(--card-bg, #f8f9fa);
    border: 2px dashed rgba(52, 152, 219, 0.35);
    border-radius: 10px;
    color: #3498db;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.file-label:hover {
    border-color: #3498db;
    background: rgba(52, 152, 219, 0.06);
    transform: translateY(-1px);
}

[data-theme="dark"] .file-label {
    background: rgba(52, 152, 219, 0.06);
    border-color: rgba(52, 152, 219, 0.3);
    color: #5dade2;
}

.file-name {
    font-size: 13px;
    color: #999;
    margin-top: 8px;
}

/* Start Exam Button */
.btn-start {
    padding: 12px 40px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s ease;
    box-shadow: 0 3px 12px rgba(52, 152, 219, 0.3);
}

.btn-start:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 18px rgba(52, 152, 219, 0.4);
}

.btn-start:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

/* Custom Exam Builder */
.custom-exam-builder {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] .custom-exam-builder {
    border-top-color: rgba(255, 255, 255, 0.06);
}

.custom-exam-builder h3 {
    margin-top: 0;
    margin-bottom: 5px;
    font-size: 17px;
    color: var(--text-color, #fcfcfc);
}

.custom-exam-builder p {
    font-size: 13px;
    color: #888;
    margin-bottom: 15px;
}

.custom-inputs-row {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.custom-input-col {
    flex: 1;
    text-align: left;
}

.custom-input-label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-color, #ffffff);
}

/* Subject filter dropdown */
.subject-filter-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid rgba(52, 152, 219, 0.25);
    border-radius: 8px;
    background: var(--card-bg, #f8f9fa);
    color: var(--text-color, #333);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='%23888'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 30px;
}

.subject-filter-select:hover {
    border-color: rgba(52, 152, 219, 0.5);
}

.subject-filter-select:focus {
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.15);
}

[data-theme="dark"] .subject-filter-select {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(52, 152, 219, 0.3);
    color: #d8d8e4;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='%23888'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
}

[data-theme="dark"] .subject-filter-select:hover {
    border-color: rgba(93, 173, 226, 0.5);
}

[data-theme="dark"] .subject-filter-select:focus {
    border-color: #5dade2;
    box-shadow: 0 0 0 2px rgba(93, 173, 226, 0.15);
}

[data-theme="dark"] .subject-filter-select option {
    background: #1e1e2d;
    /* color: #d8d8e4; */
    color: black;
}

/* History subject filter - inline width override */
.history-controls .subject-filter-select {
    width: auto;
    min-width: 160px;
}

/* Unfinished exam actions */
.unfinished-actions {
    margin-top: 20px;
    padding: 15px;
    background: rgba(231, 76, 60, 0.06);
    border: 1px solid rgba(231, 76, 60, 0.15);
    border-radius: 10px;
    text-align: center;
}

.unfinished-text {
    font-size: 14px;
    color: #e74c3c;
    margin-bottom: 12px;
    font-weight: 600;
}

.unfinished-btns {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn-resume {
    padding: 8px 20px;
    background: #27ae60;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-resume:hover {
    background: #219a52;
}

.btn-discard {
    padding: 8px 20px;
    background: #e74c3c;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-discard:hover {
    background: #c0392b;
}

.exam-container {
    display: flex;
    height: 100vh;
    flex-direction: column;
}

/* ============================================
   TOP HEADER - Blue gradient GATE branding
   ============================================ */
.top-header {
    background: var(--gate-header-gradient);
    padding: 4px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 45px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

.gate-logo-circle {
    height: 34px;
    width: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    font-weight: bold;
    color: #333;
    background: #fff;
    border: 2px solid #d4a017;
    flex-shrink: 0;
    overflow: hidden;
}

.gate-logo-circle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.header-title-area {
    text-align: center;
}

.exam-center-name {
    font-weight: bold;
    font-size: 15px;
    color: #b30000;
    letter-spacing: 0.5px;
}

.organizing-institute {
    font-size: 10px;
    color: #fff;
    font-weight: bold;
}

.header-right-logos {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ============================================
   SUB HEADER - Dark teal bar
   ============================================ */
.sub-header {
    background: var(--gate-subheader);
    color: white;
    padding: 0 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 26px;
}

.subject-title {
    font-weight: bold;
    font-size: 13px;
}

.right-tools {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-link {
    color: white;
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 3px;
}

.header-link:hover {
    text-decoration: underline;
}

.link-icon {
    font-size: 13px;
}

/* ============================================
   INFO BAR
   ============================================ */
.info-bar {
    background: #e8e8e8;
    border-bottom: 1px solid #ccc;
    padding: 2px 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 28px;
}

.info-bar-left {
    display: flex;
    align-items: center;
    gap: 6px;
}

.section-pill {
    background: #3a9bd9;
    color: #fff;
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: bold;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-arrow {
    color: #666;
    font-size: 14px;
    cursor: pointer;
    font-weight: bold;
}

.info-bar-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.save-icon {
    cursor: pointer;
    font-size: 16px;
    color: #555;
}

.candidate-name-top {
    font-weight: bold;
    font-size: 12px;
    color: #333;
}

/* ============================================
   SECTION TABS BAR
   ============================================ */
.section-tabs-bar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 10px;
    height: 30px;
    gap: 6px;
}

.sections-label {
    font-weight: bold;
    font-size: 11px;
    color: #333;
    flex-shrink: 0;
}

.tabs-container {
    display: flex;
    gap: 4px;
    flex: 1;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
}

.tabs-nav-arrow {
    color: #999;
    font-size: 16px;
    cursor: pointer;
}

.section-tab {
    padding: 3px 12px;
    border: 1px solid var(--border);
    border-bottom: none;
    background: var(--gate-tab-inactive);
    cursor: pointer;
    font-size: 13px;
    font-weight: bold;
    color: #337ab7;
    border-radius: 3px 3px 0 0;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    flex-shrink: 0;
}

/* Custom scrollbar for tabs */
.tabs-container::-webkit-scrollbar {
    height: 4px;
}

.tabs-container::-webkit-scrollbar-thumb {
    background-color: #ccc;
    border-radius: 2px;
}

.tabs-container::-webkit-scrollbar-track {
    background: transparent;
}

.section-tab .tab-count {
    background: #3a9bd9;
    color: white;
    font-size: 8px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.section-tab.active {
    background: var(--gate-tab-active);
    color: white;
    border-color: var(--gate-tab-active);
}

.section-tab.active .tab-count {
    background: #fff;
    color: #337ab7;
}

.section-tab:hover:not(.active) {
    /* background: var(--gate-tab-hover); */
}

.question-timer-container {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-left: auto;
    flex-shrink: 0;
}

.question-timer-label {
    font-size: 13px;
    font-weight: bold;
    color: #555;
}

.question-timer-display {
    font-weight: bold;
    background: #e3f2fd;
    color: #1565c0;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 14px;
    border: 1px solid #90caf9;
    font-family: 'Courier New', monospace;
    letter-spacing: 1px;
}

.timer-container {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-left: 10px;
    flex-shrink: 0;
}

.time-left-label {
    font-size: 14px;
    font-weight: bold;
    color: #333;
}

.timer-display {
    font-weight: bold;
    background: #d4edda;
    color: #155724;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 15px;
    border: 1px solid #c3e6cb;
    font-family: 'Courier New', monospace;
    letter-spacing: 1px;
}

/* ============================================
   MAIN CONTENT AREA
   ============================================ */
.exam-content {
    display: flex;
    flex: 1;
    overflow: hidden;
    background: #f5f5f5;
}

/* ============================================
   QUESTION AREA (Left)
   ============================================ */
.question-area {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    background: #fff;
    border-right: 1px solid var(--border);
}

.question-header-bar {
    background: #f5f5f5;
    border-bottom: 1px solid #ddd;
    padding: 5px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.q-type {
    font-weight: bold;
    font-size: 14px;
    color: #333;
}

.q-marks-info {
    font-size: 13px;
    color: #c00;
    font-weight: bold;
}

.question-number-bar {
    padding: 6px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #eee;
}

.q-no {
    font-weight: bold;
    font-size: 16px;
    color: #000;
}

.calc-icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.calc-icon-btn:hover {
    background: #e1f5fe;
}

.question-text {
    font-size: 17px;
    line-height: 1.6;
    padding: 12px 15px;
    color: #000;
}

/* Restore list styling removed by global reset */
.question-text ul,
.question-text ol,
.option ul,
.option ol,
.qp-question-text ul,
.qp-question-text ol {
    margin-left: 2px;
    padding-left: 5px;
    margin-top: 5px;
    margin-bottom: 5px;
}

.question-text li,
.option li,
.qp-question-text li {
    margin-bottom: 4px;
}

/* Stop layout shifts while images load */
.question-text img,
.option img,
.qp-question-text img,
.qp-options-list img {
    /* min-height: 100px; */
    /* Provides space before the image downloads */
    background-color: #f7f9fc;
    border-radius: 4px;
    max-width: 100%;
    text-align: center;
    margin-top: 8px;
    position: relative;
}

/* Skeleton loader effect for missing images until they load */
.question-text img::before,
.option img::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loadingSkeleton 1.5s infinite;
    z-index: 1;
}

@keyframes loadingSkeleton {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 0 5px 2px;
}

.option {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 5px 8px;
    cursor: pointer;
    border-radius: 3px;
    font-size: 15px;
}

.option:hover {
    background: #f0f7ff;
}

.option.selected {
    background: #e3f2fd;
}

.option input[type="radio"],
.option input[type="checkbox"] {
    margin-top: 3px;
    accent-color: #337ab7;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    width: 240px;
    background: #f0f2f5;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

/* Container for the profile bar */
.profile-section {
    background: #fff;
    padding: 6px 8px;
    display: flex;
    gap: 12px;
    border-bottom: 1px solid #ddd;
    align-items: center;
    height: 60px;
    overflow: hidden;
}

/* The small square box */
.profile-pic-wrapper {
    width: 50px;
    height: 50px;
    background: #e0e8f0;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

/* Forces the image to fit inside the box */
.my-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Text styles */
.profile-details {
    font-weight: bold;
    font-size: 14px;
    color: #333;
    white-space: nowrap;
}

/* ============================================
   LEGEND
   ============================================ */
.legend-section {
    padding: 6px 8px;
    background: #fff;
    border-bottom: 1px solid var(--border);
}

.legend-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    font-size: 10px;
    color: #333;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.legend-item-full {
    grid-column: 1 / -1;
}

.legend-icon {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    color: white;
    flex-shrink: 0;
}

.lg-answered {
    background: #4caf50;
    clip-path: polygon(0 0, 100% 0, 100% 70%, 50% 100%, 0 70%);
    height: 24px;
}

.lg-not-answered {
    background: #e53935;
    clip-path: polygon(0 0, 100% 0, 100% 70%, 50% 100%, 0 70%);
    height: 24px;
}

.lg-not-visited {
    background: #9e9e9e;
    color: #fff;
}

.lg-marked {
    background: #7b1fa2;
    border-radius: 50%;
}

.lg-marked-answered {
    background: #7b1fa2;
    border-radius: 50%;
    position: relative;
}

.lg-marked-answered::after {
    content: '\2713';
    position: absolute;
    bottom: -3px;
    right: -3px;
    background: #4caf50;
    color: white;
    font-size: 6px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   PALETTE
   ============================================ */
.palette-header {
    background: var(--palette-header);
    color: white;
    padding: 5px 8px;
    font-weight: bold;
    font-size: 11px;
}

.palette-sub-header {
    background: #fff;
    padding: 3px 8px;
    font-weight: bold;
    font-size: 10px;
    color: #333;
    border-bottom: 1px solid var(--border);
}

.palette-container {
    padding: 6px;
    background: #e8eaf6;
    flex: 1;
    overflow-y: auto;
}

.palette-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 5px;
}

.section-block-title {
    display: none;
    grid-column: 1 / -1;
    font-weight: bold;
    margin: 0;
    color: #333;
    font-size: 10px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 2px;
}

.p-btn {
    width: 100%;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    border: 1px solid #bbb;
    cursor: pointer;
    background: #e0e0e0;
    color: #333;
    position: relative;
    border-radius: 3px;
    font-weight: bold;
}

.p-btn:hover {
    opacity: 0.85;
}

.p-btn.answered {
    background-color: #4caf50;
    color: white;
    border-color: #388e3c;
    clip-path: polygon(0 0, 100% 0, 100% 75%, 50% 100%, 0 75%);
    border-radius: 0;
    height: 34px;
    transform: rotate(180deg);
}

.p-btn.answered span {
    display: inline-block;
    transform: rotate(-180deg);
}

.p-btn.not-answered {
    background-color: #e53935;
    color: white;
    border-color: #c62828;
    clip-path: polygon(0 0, 100% 0, 100% 75%, 50% 100%, 0 75%);
    height: 34px;
}

.p-btn.marked {
    /* background-color: #7b1fa2;
    color: white;
    border-radius: 50%;
    height: 30px;
    width: 30px;
    margin: 0 auto; */
}

.p-btn.not-visited {
    background-color: #e0e0e0;
    color: #333;
}

.p-btn.current {
    /* border: 2px solid #1565c0; */
    box-shadow: 0 0 3px rgba(21, 101, 192, 0.4);
}

/* ============================================
   BOTTOM ACTION BAR - FULL WIDTH
   Spans across both question area and sidebar
   Left: Mark for Review + Clear Response
   Center-Right: Previous + Save & Next
   Far Right (under sidebar): Submit
   ============================================ */
.bottom-action-bar {
    display: flex;
    align-items: center;
    padding: 6px 0;
    border-top: 2px solid #bbb;
    background: #f2f2f2;
    flex-shrink: 0;
}

.bottom-left-btns {
    display: flex;
    gap: 8px;
    padding-left: 12px;
}

.bottom-center-btns {
    display: flex;
    gap: 8px;
    margin-left: auto;
    padding-right: 10px;
}

.bottom-submit-btn {
    width: 240px;
    display: flex;
    justify-content: center;
    padding: 0 12px;
    flex-shrink: 0;
}

.btn {
    padding: 7px 16px;
    border: 1px solid var(--border);
    cursor: pointer;
    font-size: 13px;
    font-weight: bold;
    background: #f0f0f0;
    text-align: center;
    border-radius: 3px;
}

.btn-action-default {
    background: #fff;
    border: 1px solid #aaa;
    color: #333;
}

.btn-action-default:hover {
    background: #e9e9e9;
}

.btn-save-next {
    background: var(--btn-save);
    color: white;
    border: 1px solid #157faf;
    min-width: 100px;
    padding: 6px 20px;
}

.btn-save-next:hover {
    background: #157faf;
}

.btn-submit-main {
    background: var(--btn-submit);
    color: white;
    border: 1px solid #a93226;
    min-width: 80px;
    padding: 7px 20px;
    cursor: pointer;
    font-size: 13px;
    font-weight: bold;
    border-radius: 3px;
}

.btn-submit-main:hover {
    background: #a93226;
}

/* ============================================
   VERSION FOOTER
   ============================================ */
.version-footer {
    background: #444;
    color: #bbb;
    text-align: center;
    padding: 2px;
    font-size: 9px;
    height: 16px;
    flex-shrink: 0;
}

/* ============================================
   MODALS
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 1000;
}

.modal.active {
    visibility: visible;
    opacity: 1;
}

.modal-content {
    background: white;
    padding: 20px;
    border-radius: 8px;
    width: 400px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.modal-header {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 12px;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin: 15px 0;
}

.summary-item {
    text-align: center;
    padding: 10px;
    background: #f9f9f9;
    border-radius: 4px;
}

.summary-number {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 4px;
}

.summary-label {
    font-size: 11px;
    color: #666;
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 15px;
}

.btn-confirm {
    background: #3b5998;
    color: white;
    border: none;
}

.btn-cancel {
    background: #f0f0f0;
    color: #333;
    border: 1px solid var(--border);
}

.btn-blue {
    background: #337ab7;
    color: white;
    border-color: #2e6da4;
}

/* ============================================
   UPLOAD SECTION
   ============================================ */
.upload-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f2f5;
    padding: 19px 9px;
    gap: 30px;
}

.home-layout-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 25px;
    width: 100%;
    max-width: 1200px;
}

.home-sidebar {
    width: 250px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.home-main-content {
    flex: 1;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.upload-card {
    background: white;
    padding: 35px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 100%;
}

@media (max-width: 950px) {
    .home-layout-container {
        flex-direction: column;
        align-items: center;
    }

    .home-sidebar,
    .home-main-content {
        width: 100%;
        max-width: 600px;
    }
}

/* ============================================
   TEST HISTORY
   ============================================ */
.history-section {
    background: white;
    padding: 25px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    max-width: 750px;
    width: 90%;
}

.history-title {
    font-size: 18px;
    color: #3b5998;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e1e9f6;
}

.history-table-wrapper {
    overflow-x: auto;
}

.history-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.history-table th {
    background: #3b5998;
    color: white;
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.history-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #eee;
    color: #333;
}

.history-table tbody tr:hover {
    background: #f5f7fb;
}

.hist-title {
    font-weight: 600;
    color: #333;
}

.hist-score {
    background: #d4edda;
    color: #155724;
    padding: 3px 8px;
    border-radius: 12px;
    font-weight: bold;
    font-size: 12px;
}

.hist-marks {
    background: #e1e9f6;
    color: #3b5998;
    padding: 3px 8px;
    border-radius: 12px;
    font-weight: bold;
    font-size: 12px;
}

.hist-actions {
    display: flex;
    gap: 6px;
    white-space: nowrap;
}

.btn-hist {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-view {
    background: #337ab7;
    color: white;
}

.btn-view:hover {
    background: #286090;
}

.btn-delete {
    background: #f0f0f0;
    color: #d9534f;
    border: 1px solid #d9534f;
}

.btn-delete:hover {
    background: #d9534f;
    color: white;
}

.upload-title {
    font-size: 22px;
    color: #333;
    margin-bottom: 8px;
}

.upload-subtitle {
    color: #666;
    margin-bottom: 25px;
}

.file-input-wrapper {
    margin-bottom: 18px;
}

.file-input {
    display: none;
}

.file-label {
    background-color: #e1e9f6;
    color: #3b5998;
    padding: 10px 22px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    display: inline-block;
    transition: background-color 0.2s;
}

.file-label:hover {
    background-color: #d0dbe9;
}

.file-name {
    margin-top: 8px;
    color: #666;
    font-size: 13px;
}

.btn-start {
    background-color: #3b5998;
    color: white;
    border: none;
    padding: 10px 35px;
    border-radius: 4px;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-start:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.btn-start:not(:disabled):hover {
    background-color: #2d4373;
}

.sample-format {
    margin-top: 25px;
    text-align: left;
    background: #f8f9fa;
    padding: 12px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 11px;
    color: #666;
    max-height: 250px;
    overflow-y: auto;
}

.pre-wrapper {
    position: relative;
}

.pre-wrapper pre {
    margin: 0;
    padding: 12px;
    padding-top: 36px;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-size: 11px;
    line-height: 1.5;
    color: #555;
}

.copy-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: #fff;
    color: #555;
    font-size: 11px;
    cursor: pointer;
    z-index: 1;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: #e9ecef;
    border-color: #adb5bd;
    color: #333;
}

.copy-btn.copied {
    background: #d4edda;
    border-color: #28a745;
    color: #155724;
}

/* ============================================
   CODE BLOCK STYLING
   ============================================ */
/* ============================================
   GATE EXAM INTERFACE - CODE BLOCK STYLING
   ============================================ */
pre {
    background: #ffffff;
    /* Plain white to match the exam canvas */
    padding: 12px;
    border: 1px solid #a0a0a0;
    /* Harsher, standard-contrast border */
    border-radius: 0;
    /* Crucial: The official interface uses sharp, 90-degree corners */
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    margin: 10px 0;
    color: #000000;
    /* Strict black text */
}

code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    background: transparent;
    /* No background box for inline code */
    padding: 0;
    border: none;
    border-radius: 0;
    color: #000000;
}

/* pre {
    background: #f5f5f5;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    margin: 8px 0;
}

code {
    font-family: 'Courier New', Courier, monospace;
    background: #f5f5f5;
    padding: 2px 4px;
    border-radius: 3px;
} */

/* ============================================
   NAT KEYPAD - GATE STYLE
   ============================================ */
.nat-keypad-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #e8e8e8;
    border: 1px solid #bbb;
    border-radius: 6px;
    padding: 14px;
    max-width: 240px;
    margin: 10px 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.nat-display {
    width: 100%;
    height: 34px;
    background: #fff;
    border: 2px solid #999;
    border-radius: 4px;
    font-size: 16px;
    font-family: 'Courier New', monospace;
    padding: 4px 8px;
    margin-bottom: 10px;
    text-align: left;
    color: #000;
    caret-color: #000000;
}

.nat-display:focus {
    border-color: #337ab7;
}

.nat-keypad-grid {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 100%;
}

.nat-keypad-row {
    display: flex;
    gap: 5px;
    justify-content: center;
}

.nat-key {
    min-width: 52px;
    height: 36px;
    border: 1px solid #aaa;
    border-radius: 4px;
    background: linear-gradient(to bottom, #f5f5f5, #ddd);
    color: #333;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    user-select: none;
    transition: background 0.1s;
}

.nat-key:hover {
    background: linear-gradient(to bottom, #e8e8e8, #ccc);
}

.nat-key:active {
    background: linear-gradient(to bottom, #ccc, #bbb);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
}

.nat-key-backspace {
    flex: 1;
    font-size: 13px;
    font-weight: bold;
}

.nat-key-clear {
    flex: 1;
    font-size: 13px;
    font-weight: bold;
    background: linear-gradient(to bottom, #f5f5f5, #ddd);
}

.nat-key-arrow {
    min-width: 52px;
    flex: 1;
    font-size: 16px;
}

/* ============================================
   DARK MODE TOGGLE BUTTON
   ============================================ */
.dark-mode-toggle {
    position: relative;
    z-index: 9999;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 16px;
    line-height: 1;
    padding: 0;
    flex-shrink: 0;
}

/* Standalone toggle for upload/result pages (no header) */
.dark-mode-toggle.standalone {
    position: fixed;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    font-size: 18px;
    border: 2px solid #ccc;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.dark-mode-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.dark-mode-toggle .icon-sun,
.dark-mode-toggle .icon-moon {
    transition: opacity 0.3s, transform 0.4s;
    position: absolute;
}

.dark-mode-toggle .icon-sun {
    opacity: 0;
    transform: rotate(-90deg);
}

.dark-mode-toggle .icon-moon {
    opacity: 1;
    transform: rotate(0deg);
}

[data-theme="dark"] .dark-mode-toggle .icon-sun {
    opacity: 1;
    transform: rotate(0deg);
}

[data-theme="dark"] .dark-mode-toggle .icon-moon {
    opacity: 0;
    transform: rotate(90deg);
}

[data-theme="dark"] .dark-mode-toggle {
    background: #1e1e2f;
    border-color: #444;
    box-shadow: 0 2px 12px rgba(100, 100, 255, 0.15);
}

/* ============================================
   DARK MODE - GLOBAL TRANSITIONS
   ============================================ */
body,
.exam-container,
.upload-section,
.upload-card,
.question-area,
.sidebar,
.info-bar,
.section-tabs-bar,
.bottom-action-bar,
.modal-content,
.history-section,
.result-container {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* ============================================
   DARK MODE THEME
   ============================================ */
[data-theme="dark"] body {
    background: #0d0d14;
    color: #d8d8e4;
}

/* Upload Section */
[data-theme="dark"] .upload-section {
    background-color: #0d0d14;
}

[data-theme="dark"] .upload-card {
    background: #1a1a2e;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    border: 1px solid #2a2a3e;
}

[data-theme="dark"] .upload-title {
    color: #e0e0f0;
}

[data-theme="dark"] .upload-subtitle {
    color: #8888a0;
}

[data-theme="dark"] .file-label {
    background-color: #252545;
    color: #7eb8ff;
    border: 1px solid #3a3a5c;
}

[data-theme="dark"] .file-label:hover {
    background-color: #30305a;
}

[data-theme="dark"] .file-name {
    color: #7a7a96;
}

[data-theme="dark"] .btn-start {
    background-color: #3b5998;
}

[data-theme="dark"] .btn-start:not(:disabled):hover {
    background-color: #4a6ab0;
}

[data-theme="dark"] .btn-start:disabled {
    background-color: #2a2a3e;
    color: #555;
}

[data-theme="dark"] .sample-format {
    background: #12121f;
    color: #8888a0;
    border: 1px solid #2a2a3e;
}

[data-theme="dark"] .pre-wrapper pre {
    color: #9999b0;
}

[data-theme="dark"] .copy-btn {
    background: #1a1a2e;
    color: #8888a0;
    border-color: #333;
}

[data-theme="dark"] .copy-btn:hover {
    background: #252540;
    border-color: #555;
    color: #c0c0d0;
}

[data-theme="dark"] .copy-btn.copied {
    background: #1a3320;
    border-color: #28a745;
    color: #6fdc6f;
}

/* ============================================
   UNFINISHED EXAM ACTIONS (ADDED)
   ============================================ */
.unfinished-actions {
    margin-top: 20px;
    padding: 15px;
    background: #fff8e1;
    border: 1px solid #ffe082;
    border-radius: 6px;
    text-align: center;
}

[data-theme="dark"] .unfinished-actions {
    background: #2a2010;
    border-color: #504020;
}

.unfinished-text {
    margin: 0 0 10px 0;
    font-weight: 600;
    color: #d35400;
}

[data-theme="dark"] .unfinished-text {
    color: #ffb74d;
}

.unfinished-btns {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.btn-resume {
    background: #f39c12;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s;
}

.btn-resume:hover {
    background: #d68910;
}

.btn-discard {
    background: transparent;
    color: #e74c3c;
    padding: 10px 20px;
    border: 1px solid #e74c3c;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-discard:hover {
    background: #e74c3c;
    color: white;
}

[data-theme="dark"] .btn-discard {
    border-color: #ef5350;
    color: #ef5350;
}

[data-theme="dark"] .btn-discard:hover {
    background: #ef5350;
    color: white;
}

/* History Section */
[data-theme="dark"] .history-section {
    background: #1a1a2e;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    border: 1px solid #2a2a3e;
}

[data-theme="dark"] .history-title {
    color: #7eb8ff;
    border-bottom-color: #2a2a3e;
}

[data-theme="dark"] .history-table th {
    background: #16213e;
    color: #b0c8ff;
}

[data-theme="dark"] .history-table td {
    border-bottom-color: #252545;
    color: #c0c0d8;
}

[data-theme="dark"] .history-table tbody tr:hover {
    background: #1e1e38;
}

[data-theme="dark"] .hist-title {
    color: #d8d8e4;
}

[data-theme="dark"] .hist-score {
    background: #1a3320;
    color: #6fdc6f;
}

[data-theme="dark"] .hist-marks {
    background: #1a1a3e;
    color: #7eb8ff;
}

[data-theme="dark"] .btn-view {
    background: #2a5098;
}

[data-theme="dark"] .btn-view:hover {
    background: #3a60b0;
}

[data-theme="dark"] .btn-delete {
    background: #1a1a2e;
    color: #ff6b6b;
    border-color: #ff6b6b;
}

[data-theme="dark"] .btn-delete:hover {
    background: #ff6b6b;
    color: #fff;
}

/* Top Header */
[data-theme="dark"] .top-header {
    background: linear-gradient(to bottom, #16213e, #0f3460);
}

[data-theme="dark"] .exam-center-name {
    color: #ff6b6b;
}

[data-theme="dark"] .gate-logo-circle {
    background: #1a1a2e;
    border-color: #d4a017;
}

/* Sub Header */
[data-theme="dark"] .sub-header {
    background: #0a1628;
}

/* Info Bar */
[data-theme="dark"] .info-bar {
    background: #12121f;
    border-bottom-color: #2a2a3e;
}

[data-theme="dark"] .candidate-name-top {
    color: #c0c0d8;
}

[data-theme="dark"] .nav-arrow {
    color: #666;
}

/* Section Tabs */
[data-theme="dark"] .section-tabs-bar {
    background: #151525;
    border-bottom-color: #2a2a3e;
}

[data-theme="dark"] .sections-label {
    color: #b0b0c8;
}

[data-theme="dark"] .section-tab {
    background: #1a1a2e;
    border-color: #2a2a3e;
    color: #7eb8ff;
}

[data-theme="dark"] .section-tab.active {
    background: #2a5098;
    color: #fff;
    border-color: #2a5098;
}

[data-theme="dark"] .section-tab:hover:not(.active) {
    /* background: #252545; */
}

[data-theme="dark"] .question-timer-label {
    color: #8888a0;
}

[data-theme="dark"] .question-timer-display {
    background: #16213e;
    color: #7eb8ff;
    border-color: #2a5098;
}

[data-theme="dark"] .time-left-label {
    color: #b0b0c8;
}

[data-theme="dark"] .timer-display {
    background: #1a3320;
    color: #6fdc6f;
    border-color: #2a5530;
}

/* Main content area */
[data-theme="dark"] .exam-content {
    background: #0d0d14;
}

/* Question Area */
[data-theme="dark"] .question-area {
    background: #14141f;
    border-right-color: #2a2a3e;
}

[data-theme="dark"] .question-header-bar {
    background: #12121f;
    border-bottom-color: #2a2a3e;
}

[data-theme="dark"] .q-type {
    color: #c0c0d8;
}

[data-theme="dark"] .q-marks-info {
    color: #ff6b6b;
}

[data-theme="dark"] .question-number-bar {
    border-bottom-color: #2a2a3e;
}

[data-theme="dark"] .q-no {
    color: #e0e0f0;
}

[data-theme="dark"] .calc-icon-btn:hover {
    background: #1a1a3e;
}

[data-theme="dark"] .question-text {
    color: #d8d8e4;
}

/* Options */
[data-theme="dark"] .option:hover {
    background: #1e1e38;
}

[data-theme="dark"] .option.selected {
    background: #1a2a48;
}

/* Sidebar */
[data-theme="dark"] .sidebar {
    background: #111120;
}

[data-theme="dark"] .profile-section {
    background: #1a1a2e;
    border-bottom-color: #2a2a3e;
}

[data-theme="dark"] .profile-details {
    color: #c0c0d8;
}

[data-theme="dark"] .profile-pic-wrapper {
    background: #252545;
}

/* Legend */
[data-theme="dark"] .legend-section {
    background: #1a1a2e;
    border-bottom-color: #2a2a3e;
}

[data-theme="dark"] .legend-grid {
    color: #b0b0c8;
}

/* Palette */
[data-theme="dark"] .palette-header {
    background: #8b3a00;
}

[data-theme="dark"] .palette-sub-header {
    background: #1a1a2e;
    color: #b0b0c8;
    border-bottom-color: #2a2a3e;
}

[data-theme="dark"] .palette-container {
    background: #12121f;
}

[data-theme="dark"] .section-block-title {
    color: #b0b0c8;
    border-bottom-color: #2a2a3e;
}

[data-theme="dark"] .p-btn.not-visited {
    background: #252545;
    color: #8888a0;
    border-color: #3a3a5c;
}

[data-theme="dark"] .p-btn.current {
    /* border-color: #7eb8ff; */
    /* box-shadow: 0 0 6px rgba(126, 184, 255, 0.3); */
}

/* Bottom Action Bar */
[data-theme="dark"] .bottom-action-bar {
    background: #14141f;
    border-top-color: #2a2a3e;
}

[data-theme="dark"] .btn-action-default {
    background: #1a1a2e;
    border-color: #3a3a5c;
    color: #c0c0d8;
}

[data-theme="dark"] .btn-action-default:hover {
    background: #252545;
}

[data-theme="dark"] .btn-save-next {
    background: #1a7fb4;
    border-color: #156fa0;
}

[data-theme="dark"] .btn-save-next:hover {
    background: #156fa0;
}

[data-theme="dark"] .btn-submit-main {
    background: #c0392b;
    border-color: #a33226;
}

[data-theme="dark"] .btn-submit-main:hover {
    background: #a33226;
}

/* Version Footer */
[data-theme="dark"] .version-footer {
    background: #0a0a14;
    color: #555;
}

/* Modals */
[data-theme="dark"] .modal-content {
    background: #1a1a2e;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.7);
    border: 1px solid #2a2a3e;
    color: #d8d8e4;
}

[data-theme="dark"] .modal-header {
    border-bottom-color: #2a2a3e;
    color: #e0e0f0;
}

[data-theme="dark"] .summary-item {
    background: #12121f;
    border: 1px solid #2a2a3e;
}

[data-theme="dark"] .summary-label {
    color: #8888a0;
}

[data-theme="dark"] .btn-confirm {
    background: #2a5098;
}

[data-theme="dark"] .btn-cancel {
    background: #252545;
    color: #c0c0d8;
    border-color: #3a3a5c;
}

[data-theme="dark"] .btn-blue {
    background: #2a5098;
    border-color: #2050a0;
}

/* Code Blocks */
[data-theme="dark"] pre {
    background: #0d0d18;
    border-color: #2a2a3e;
    color: #b0c0d8;
}

[data-theme="dark"] code {
    background: #0d0d18;
    color: #b0c0d8;
}

/* NAT Keypad */
[data-theme="dark"] .nat-keypad-container {
    background: #1a1a2e;
    border-color: #3a3a5c;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .nat-display {
    background: #12121f;
    border-color: #3a3a5c;
    color: #e0e0f0;
    caret-color: #7eb8ff;
}

[data-theme="dark"] .nat-display:focus {
    border-color: #7eb8ff;
}

[data-theme="dark"] .nat-key {
    background: linear-gradient(to bottom, #252545, #1e1e38);
    border-color: #3a3a5c;
    color: #d8d8e4;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .nat-key:hover {
    background: linear-gradient(to bottom, #30305a, #252545);
}

[data-theme="dark"] .nat-key:active {
    background: linear-gradient(to bottom, #1a1a2e, #151525);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .nat-key-clear {
    background: linear-gradient(to bottom, #252545, #1e1e38);
}

/* Scrollbar */
[data-theme="dark"] .tabs-container::-webkit-scrollbar-thumb {
    background-color: #3a3a5c;
}

[data-theme="dark"] ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: #0d0d14;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: #2a2a3e;
    border-radius: 4px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: #3a3a5c;
}

/* ============================================
   HISTORY CONTROLS (SEARCH & SORT)
   ============================================ */
.history-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    background: #f8f9fa;
    padding: 15px 20px;
    border-radius: 12px;
    border: 1px solid #e1e8f0;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

.history-search {
    flex: 1;
    padding: 12px 18px;
    border: 2px solid #e1e8f0;
    border-radius: 8px;
    font-size: 15px;
    outline: none;
    transition: all 0.25s ease;
    background: #fff;
    color: #333;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.history-search::placeholder {
    color: #999;
}

.history-search:focus {
    border-color: #3b5998;
    box-shadow: 0 0 0 3px rgba(59, 89, 152, 0.15);
}

.history-sort {
    padding: 12px 18px;
    border: 2px solid #e1e8f0;
    border-radius: 8px;
    font-size: 15px;
    min-width: 180px;
    outline: none;
    cursor: pointer;
    background-color: #fff;
    color: #333;
    transition: all 0.25s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    font-weight: 500;
}

.history-sort:focus,
.history-sort:hover {
    border-color: #3b5998;
}

/* Dark Mode Overrides for Controls */
[data-theme="dark"] .history-controls {
    background: #12121f;
    border-color: #2a2a3e;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .history-search,
[data-theme="dark"] .history-sort {
    background: #1a1a2e;
    color: #e0e0f0;
    border-color: #33334d;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .history-search::placeholder {
    color: #6a6a8a;
}

[data-theme="dark"] .history-search:focus,
[data-theme="dark"] .history-sort:focus,
[data-theme="dark"] .history-sort:hover {
    border-color: #7eb8ff;
    box-shadow: 0 0 0 3px rgba(126, 184, 255, 0.15);
}

/* ============================================
   FLOATING CALCULATOR
   ============================================ */
.calculator-overlay {
    position: fixed;
    top: 15%;
    right: 5%;
    width: 482px;
    height: 200px;
    background: #fff;
    border: 1px solid #ccc;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.calculator-header {
    background: var(--gate-header-gradient);
    color: #fff;
    padding: 8px 12px;
    cursor: move;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
    user-select: none;
}

.calc-title {
    font-size: 14px;
    pointer-events: none;
}

.calc-close-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 28px;
    cursor: pointer;
    line-height: 1;

}

.calc-close-btn:hover {
    color: #ffcccc;
}

.calculator-iframe {
    width: 100%;
    height: 80%;
    border: none;
    flex: 1;
}

/* ============================================
   QUESTION PAPER MODAL
   ============================================ */
.question-paper-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.question-paper-container {
    background: #fff;
    width: 90%;
    max-width: 100%;
    height: 85%;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    overflow: hidden;
}

.question-paper-header {
    background: var(--gate-subheader);
    color: #fff;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.question-paper-header h2 {
    font-size: 18px;
    margin: 0;
}

.qp-close-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}

.qp-close-btn:hover {
    color: #ffcccc;
}

.question-paper-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px;
}

.qp-section-title {
    font-size: 18px;
    font-weight: bold;
    color: #00838f;
    margin-top: 20px;
    margin-bottom: 15px;
    padding-bottom: 5px;
    border-bottom: 2px solid #00838f;
}

.qp-question-block {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px dashed #ccc;
}

.qp-question-header {
    display: flex;
    justify-content: space-between;
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 14px;
}

.qp-question-text {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 15px;
    overflow-wrap: break-word;
    word-wrap: break-word;
}


.qp-options-list {
    list-style-type: lower-alpha;
    margin-left: 20px;
}

.qp-options-list li {
    margin-bottom: 5px;
    font-size: 14px;
    overflow-wrap: break-word;
    word-wrap: break-word;
}


[data-theme="dark"] .calculator-overlay,
[data-theme="dark"] .question-paper-container {
    background: #1e1e2d;
    color: #e0e0f0;
}

[data-theme="dark"] .question-paper-content {
    background: #1a1a2e;
}

[data-theme="dark"] .qp-question-block {
    border-bottom: 1px dashed #444;
}

/* ============================================
   SCROLL TO TOP BUTTON
   ============================================ */
.scroll-to-top {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background: #3498db;
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    display: none;
    /* hidden by default */
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: background 0.3s ease, transform 0.2s ease;
}

.scroll-to-top:hover {
    background: #2980b9;
    transform: translateY(-3px);
}

[data-theme="dark"] .scroll-to-top {
    background: #8e44ad;
}

[data-theme="dark"] .scroll-to-top:hover {
    background: #9b59b6;
}

/* ============================================
   CUSTOM EXAM BUILDER STYLES
   ============================================ */
.custom-num-input {
    width: 100%;
    text-align: center;
    padding: 12px;
    font-size: 16px;
    font-weight: bold;
    border: 2px solid #3498db;
    border-radius: 8px;
    background: #f8f9fa;
    color: #2c3e50;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.custom-num-input:focus {
    outline: none;
    border-color: #9b59b6;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(155, 89, 182, 0.2);
}

[data-theme="dark"] .custom-num-input {
    background: #1e1e2d;
    color: #e0e0e0;
    border-color: #4a6eaa;
}

[data-theme="dark"] .custom-num-input:focus {
    border-color: #9b59b6;
    background: #161625;
}

.avail-text {
    display: block;
    color: #7f8c8d;
    font-size: 12px;
    margin-top: 6px;
    text-align: center;
    font-weight: 500;
}

[data-theme="dark"] .avail-text {
    color: #8888a0;
}

.custom-exam-btn {
    background: linear-gradient(135deg, #9b59b6, #8e44ad) !important;
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.4) !important;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    color: white;
    border: none;
    padding: 12px 35px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    margin-top: 10px;
}

.custom-exam-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0) 100%);
    transform: skewX(-25deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% {
        left: -100%;
    }

    20% {
        left: 200%;
    }

    100% {
        left: 200%;
    }
}

.custom-exam-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(155, 89, 182, 0.6) !important;
}

/* ============================================
   CALENDAR STREAK WIDGET
   ============================================ */
.streak-calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    margin-top: 15px;
    text-align: center;
}

.calendar-header-day {
    font-size: 11px;
    color: #7f8c8d;
    font-weight: bold;
    margin-bottom: 5px;
}

[data-theme="dark"] .calendar-header-day {
    color: #8888a0;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    border-radius: 50%;
    background: #f1f2f6;
    color: #555;
    position: relative;
}

[data-theme="dark"] .calendar-day {
    background: #1e1e2d;
    color: #a0a0c0;
}

.calendar-day.active-day {
    background: #ffeaa7;
    color: #d35400;
    font-weight: bold;
    box-shadow: 0 2px 5px rgba(211, 84, 0, 0.2);
    border: 1px solid #fdcb6e;
}

[data-theme="dark"] .calendar-day.active-day {
    background: rgba(211, 84, 0, 0.2);
    color: #ffb74d;
    border-color: #d35400;
}

.calendar-day.active-day::after {
    content: '🔥';
    position: absolute;
    top: -6px;
    right: -6px;
    font-size: 12px;
}

.calendar-day.today {
    border: 2px solid #3498db;
}

.calendar-day.selected-date {
    border: 2px solid #9b59b6;
    font-weight: bold;
    z-index: 2;
}

.calendar-day.has-todos::after {
    content: '';
    position: absolute;
    bottom: 2px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: #34495e;
}

[data-theme="dark"] .calendar-day.has-todos::after {
    background-color: #9b59b6;
}

/* When a day has both active-day (fire emoji) and has-todos, show the fire emoji via ::after and the dot via ::before */
.calendar-day.active-day.has-todos::after {
    content: '🔥';
    position: absolute;
    top: -6px;
    right: -6px;
    font-size: 12px;
    width: auto;
    height: auto;
    border-radius: 0;
    background-color: transparent;
    bottom: auto;
}

.calendar-day.active-day.has-todos::before {
    content: '';
    position: absolute;
    bottom: 2px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: #34495e;
}

[data-theme="dark"] .calendar-day.active-day.has-todos::before {
    background-color: #9b59b6;
}

.calendar-day.active-day.selected-date {
    background-color: #ffeaa7;
    /* retain streak background */
    color: #d35400;
    /* retain streak text */
}

[data-theme="dark"] .calendar-day.selected-date {
    border: 2px solid #c39bd3;
}

[data-theme="dark"] .calendar-day.active-day.selected-date {
    background-color: rgba(211, 84, 0, 0.2);
    /* retain streak background */
    color: #ffb74d;
    /* retain streak text */
    border-color: #c39bd3;
}

.calendar-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-weight: bold;
    color: #2c3e50;
}

[data-theme="dark"] .calendar-nav {
    color: #e0e0f0;
}

.cal-nav-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: #7f8c8d;
    padding: 2px 8px;
}

.cal-nav-btn:hover {
    color: #3498db;
}

.crossed-out {
    text-decoration: line-through;
    opacity: 0.4;
    color: #e74c3c;
    background: transparent !important;
}

[data-theme="dark"] .crossed-out {
    color: #c0392b;
}

/* border-bottom: 1px dashed #444;
}

   */

/* ============================================
   TO-DO LIST STYLES
   ============================================ */
.todo-tracker {
    display: flex;
    flex-direction: column;
}

/* ============================================
   DAILY NOTES TAB BAR
   ============================================ */
.dn-tab-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 14px;
    background: rgba(155, 89, 182, 0.12);
    border-radius: 8px;
    padding: 2px;
    border: 1px solid rgba(155, 89, 182, 0.15);
}

.dn-tab {
    flex: 1;
    padding: 3px 5px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: #aaa;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 19px;
    /* letter-spacing: 0.2px; */
}

.dn-tab.active {
    background: linear-gradient(135deg, #a855f7, #9333ea);
    color: #fff;
    box-shadow: 0 3px 12px rgba(147, 51, 234, 0.4);
}

.dn-tab:not(.active):hover {
    background: rgba(155, 89, 182, 0.12);
    color: #b388d9;
}

[data-theme="dark"] .dn-tab-bar {
    background: rgba(155, 89, 182, 0.08);
    border-color: rgba(155, 89, 182, 0.12);
}

[data-theme="dark"] .dn-tab {
    color: #8888a0;
}

[data-theme="dark"] .dn-tab.active {
    background: linear-gradient(135deg, #a855f7, #9333ea);
    color: #fff;
    box-shadow: 0 3px 14px rgba(147, 51, 234, 0.45);
}

[data-theme="dark"] .dn-tab:not(.active):hover {
    background: rgba(155, 89, 182, 0.15);
    color: #c39bd3;
}

/* Input */
.todo-input-group {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
    align-items: center;
}

.todo-input-group input {
    flex: 1;
    padding: 8px 12px;
    border: 1.5px solid rgba(155, 89, 182, 0.3);
    border-radius: 8px;
    font-size: 13px;
    outline: none;
    transition: all 0.3s ease;
    background: var(--bg-color, #fff);
    color: var(--text-color, #333);
}

[data-theme="dark"] .todo-input-group input {
    background: rgba(30, 30, 50, 0.7);
    border-color: rgba(155, 89, 182, 0.25);
    color: #d8d8e4;
}

.todo-input-group input::placeholder {
    color: #aaa;
    font-size: 13px;
}

[data-theme="dark"] .todo-input-group input::placeholder {
    color: #6a6a8a;
}

.todo-input-group input:focus {
    border-color: #a855f7;
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.15);
}

[data-theme="dark"] .todo-input-group input:focus {
    border-color: #a855f7;
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.2);
    background: rgba(25, 25, 45, 0.9);
}

.todo-input-group button {
    background: linear-gradient(135deg, #a855f7, #9333ea);
    color: white;
    border: none;
    border-radius: 10px;
    width: 26px;
    height: 26px;
    font-size: 20px;
    font-weight: 300;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    box-shadow: 0 3px 10px rgba(147, 51, 234, 0.35);
    flex-shrink: 0;
}

.todo-input-group button:hover {
    background: linear-gradient(135deg, #9333ea, #7c3aed);
    box-shadow: 0 4px 14px rgba(147, 51, 234, 0.5);
    transform: translateY(-1px);
}

.todo-input-group button:active {
    transform: scale(0.93);
    box-shadow: 0 2px 6px rgba(147, 51, 234, 0.3);
}

/* List */
.todo-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 200px;
    overflow-y: auto;
    scrollbar-width: thin;
}

.todo-list::-webkit-scrollbar {
    width: 4px;
}

.todo-list::-webkit-scrollbar-thumb {
    background: rgba(155, 89, 182, 0.3);
    border-radius: 2px;
}

/* Items */
.todo-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    background: var(--card-bg, #fff);
    border: 1px solid rgba(155, 89, 182, 0.12);
    border-radius: 4px;
    margin-bottom: 8px;
    transition: all 0.25s ease;
    animation: fadeInTodo 0.3s ease;
}

[data-theme="dark"] .todo-item {
    background: rgba(30, 30, 50, 0.5);
    border-color: rgba(155, 89, 182, 0.15);
}

.todo-item:hover {
    box-shadow: 0 3px 10px rgba(155, 89, 182, 0.1);
    transform: translateY(-1px);
    border-color: rgba(155, 89, 182, 0.25);
}

[data-theme="dark"] .todo-item:hover {
    box-shadow: 0 3px 12px rgba(155, 89, 182, 0.12);
    border-color: rgba(155, 89, 182, 0.3);
}

@keyframes fadeInTodo {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.todo-content {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    overflow: hidden;
}

/* Checkbox */
.todo-checkbox {
    appearance: none;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(155, 89, 182, 0.5);
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.25s ease;
    background: transparent;
}

.todo-checkbox:hover {
    border-color: #a855f7;
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.12);
}

.todo-checkbox:checked {
    background: linear-gradient(135deg, #a855f7, #9333ea);
    border-color: transparent;
    box-shadow: 0 2px 6px rgba(147, 51, 234, 0.35);
}

.todo-checkbox:checked::after {
    content: '\2713';
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.todo-text {
    font-size: 13px;
    color: var(--text-color, #333);
    color: white;
    word-break: break-word;
    transition: all 0.3s ease;
    line-height: 1.4;
}

.todo-item.completed .todo-text {
    text-decoration: line-through;
    color: #999;
    opacity: 0.6;
}

[data-theme="dark"] .todo-item.completed .todo-text {
    color: #6a6a8a;
}

/* Delete button */
.todo-delete-btn {
    background: none;
    border: none;
    color: #cc7a7a;
    cursor: pointer;
    font-size: 14px;
    opacity: 0;
    transition: all 0.2s ease;
    padding: 4px 6px;
    border-radius: 6px;
    line-height: 1;
}

.todo-item:hover .todo-delete-btn {
    opacity: 0.7;
}

.todo-delete-btn:hover {
    opacity: 1 !important;
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
}

[data-theme="dark"] .todo-delete-btn {
    color: #996666;
}

[data-theme="dark"] .todo-delete-btn:hover {
    background: rgba(231, 76, 60, 0.15);
    color: #e57373;
}

.todo-empty-state {
    text-align: center;
    font-size: 12px;
    color: #999;
    padding: 18px 0;
    font-style: italic;
}

[data-theme="dark"] .todo-empty-state {
    color: #6a6a8a;
}

/* Actions container (edit + delete) */
.todo-actions {
    display: flex;
    align-items: center;
    gap: 2px;
    flex-shrink: 0;
}

/* Edit button */
.todo-edit-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 13px;
    opacity: 0;
    transition: all 0.2s ease;
    padding: 3px 4px;
    border-radius: 5px;
    line-height: 1;
}

.todo-item:hover .todo-edit-btn {
    opacity: 0.7;
}

.todo-edit-btn:hover {
    opacity: 1 !important;
    background: rgba(168, 85, 247, 0.12);
}

/* Inline edit input */
.todo-edit-input {
    flex: 1;
    font-size: 13px;
    padding: 4px 8px;
    border: 1.5px solid #a855f7;
    border-radius: 6px;
    outline: none;
    background: var(--bg-color, #fff);
    color: var(--text-color, #333);
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.15);
    min-width: 0;
}

[data-theme="dark"] .todo-edit-input {
    background: rgba(25, 25, 45, 0.9);
    color: #d8d8e4;
    border-color: #a855f7;
}

/* Note item bullet style (for Notes tab items) */
.note-bullet {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: linear-gradient(135deg, #a855f7, #9333ea);
    flex-shrink: 0;
    box-shadow: 0 1px 4px rgba(147, 51, 234, 0.4);
}

/* ============================================
   MATHJAX FONT SIZE FIX
   Ensure LaTeX-rendered content is readable
   ============================================ */
.question-text mjx-container,
.option mjx-container,
.options-container mjx-container,
.rq-text mjx-container,
.rq-option mjx-container {
    font-size: 115% !important;
}

/* Targets all MathJax output */
.MathJax {
    font-size: 1.2em;
    /* Adjust this value as needed (e.g., 1.5em, 120%, 20px) */
}

/* ============================================
   GATE EXAM INTERFACE - PIXEL-ACCURATE CLONE
   All classes prefixed with gate- to avoid conflicts
   ============================================ */

/* Root container — replaces .exam-container */
.gate-exam-root {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
    overflow: visible;
    font-family: Arial, sans-serif;
    background-color: #f1f1f1;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
}

/* 1. Header & Branding */
.gate-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #ccc;
    padding: 3px 10px;
    background-color: #fff;
    flex-shrink: 0;
}

.gate-iit-org-logo {
    width: 8%;
}

.gate-iit-org-logo img {
    width: 50px;
    height: auto;
}

.gate-iit-goal {
    width: 8%;
    text-align: right;
}

.gate-iit-goal img {
    width: 50px;
    height: auto;
}

.gate-iit-org-name {
    text-align: center;
}

.gate-iit-org-name h1 {
    font-size: 18px;
    margin: 0 0 2px 0;
    color: #800000;
}

.gate-iit-org-name p {
    color: #1875b3;
    margin: 0;
    font-size: 12px;
    font-weight: bold;
}

/* 2. Sprites & Icons */
.gate-info-icon-sprite,
.gate-question-icon-sprite {
    width: 30px;
    height: 30px;
    background-image: url('../images/instruction_image.png');
    background-repeat: no-repeat;
    cursor: pointer;
}

.gate-info-icon-sprite {
    background-position: -133px -1px;
}

.gate-question-icon-sprite {
    width: 28px;
    background-position: -184px -1px;
}

/* Tooltip for Calculator */
.gate-calc-tooltip-trigger {
    position: relative;
}

.gate-calc-tooltip-trigger:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: -22px;
    left: 50%;
    transform: translateX(-50%);
    background: #000;
    color: #fff;
    padding: 3px 6px;
    font-size: 11px;
    border-radius: 2px;
    white-space: nowrap;
    z-index: 9999;
    pointer-events: none;
}

/* Dropdown Menu styling for (i) Info Icons */
.gate-info-icon-wrapper {
    position: relative;
    display: inline-block;
    cursor: pointer;
}

.gate-info-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #e5f1f8;
    border: 1px solid #46b8da;
    z-index: 1000;
    width: 260px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    padding: 10px;
    border-radius: 4px;
    color: #333;
}

.gate-info-icon-wrapper:hover .gate-info-dropdown {
    display: block;
}

.gate-info-title {
    font-weight: bold;
    background: #1875b3;
    color: white;
    padding: 5px;
    margin: -10px -10px 10px -10px;
    font-size: 13px;
}

.gate-info-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    margin-bottom: 5px;
}

/* 3. Status Bars */
.gate-ins-ques {
    height: 25px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
    background-color: #363636;
    flex-shrink: 0;
}

.gate-ins-ques .gate-test-name p,
.gate-ins-ques p {
    color: #e9d944;
    font-size: 13px;
    margin: 0;
    font-weight: bold;
}

.gate-ins-ques-btn {
    display: flex;
    gap: 10px;
}

.gate-ins-ques-btn a {
    display: flex;
    text-decoration: none;
    align-items: center;
    color: white;
    font-size: 12px;
}

.gate-ins-ques-btn .gate-info-icon-sprite,
.gate-ins-ques-btn .gate-question-icon-sprite {
    transform: scale(0.9);
    margin-right: -2px;
}

/* --- MAIN WORKSPACE LAYOUT --- */
.gate-workspace {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    min-height: 0;
}

/* 4. Top Action Row */
.gate-workspace-top {
    display: flex;
    flex-shrink: 0;
    background-color: #fff;
}

.gate-top-left {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    border-right: 1px solid #ccc;
    overflow: visible;
}

.gate-top-right {
    width: 280px;
    flex-shrink: 0;
    border-left: 2px solid #ccc;
    border-right: 2px solid #ccc;
}

.gate-calc-section {
    display: flex;
    align-items: center;
    background-color: #f2f2f2;
    padding: 4px 10px;
    border-bottom: 1px solid #dcdcdc;
    justify-content: space-between;
    overflow: visible;
    position: relative;
    z-index: 100;
}

.gate-exam-name-con,
.gate-calc-icon-con {
    display: flex;
    gap: 8px;
    align-items: center;
}

.gate-left-arrow-sprite {
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-right: 8px solid #c0c0c0;
    cursor: pointer;
}

.gate-right-arrow-sprite {
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 8px solid #c0c0c0;
    cursor: pointer;
}

.gate-left-arrow-sprite:hover {
    border-right-color: #888;
}

.gate-right-arrow-sprite:hover {
    border-left-color: #888;
}

.gate-exam-name-pill {
    display: flex;
    align-items: center;
    background-color: #1875b3;
    height: 22px;
    color: white;
    padding: 0 8px;
    border-radius: 2px;
    position: relative;
    gap: 4px;
}

.gate-exam-name-pill::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 103px;
    border-width: 6px 6px 0;
    border-style: solid;
    border-color: #1875b3 transparent transparent transparent;
}

.gate-exam-name-pill p {
    margin: 0;
    font-size: 11px;
    font-weight: bold;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 160px;
}

.gate-exam-name-pill .gate-info-icon-sprite {
    transform: scale(0.85);
    margin-right: -8px;
}

.gate-tab-icon {
    transform: scale(0.9) !important;
    margin-right: -6px;
}

.gate-calc-icon {
    width: 30px;
    height: 30px;
    background-image: url('../images/instruction_image.png');
    background-repeat: no-repeat;
    background-position: -140px -57px;
    cursor: pointer;
}

.gate-time-left-sec {
    display: flex;
    justify-content: space-between;
    padding: 4px 10px;
    border-bottom: 1px solid #ccc;
}

.gate-time-left-sec p {
    color: #333;
    font-size: 13px;
    margin: 0;
    font-weight: bold;
}


/* 5. Section Tabs */
.gate-section-tabs-container {
    display: flex;
    justify-content: flex-start;
    align-items: stretch;
    border-bottom: 1px solid #ccc;
    background-color: white;
    height: 28px;
    flex-shrink: 0;
    overflow: visible;
    position: relative;
    z-index: 99;
}

.gate-tabs-left {
    display: flex;
    align-items: stretch;
    overflow: visible;
    flex-grow: 1;
}

.gate-nav-arrow {
    display: flex;
    align-items: center;
    padding: 0 10px;
    color: #999;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
}

.gate-nav-arrow:hover {
    color: #333;
}

/* Section tab styling — these are added dynamically via JS with class "section-tab" */
.gate-tabs-left .section-tab {
    display: flex;
    align-items: center;
    padding: 0 4px 0 10px;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    border-right: 1px solid #ccc;
    white-space: nowrap;
    gap: 4px;
    background-color: white;
    color: #1875b3;
    border: none;
    border-right: 1px solid #ccc;
}

.gate-tabs-left .section-tab.active {
    background-color: #1875b3;
    color: white;
    border-color: #1875b3;
}

.gate-tabs-left .section-tab:not(.active) {
    background-color: white;
    color: #1875b3;
}

.gate-tabs-left .section-tab .tab-count {
    background: #3a9bd9;
    color: white;
    font-size: 8px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.gate-tabs-left .section-tab.active .tab-count {
    background: #fff;
    color: #1875b3;
}

/* Profile Layout */
.gate-prof-can-name-con {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 6px 10px;
    border-bottom: 1px solid #ccc;
    height: 100%;
    box-sizing: border-box;
}

.gate-profile-pic img {
    border: 1px solid #999;
    border-radius: 4px;
    display: block;
}

.gate-candidate-name {
    font-size: 15px;
    font-weight: bold;
    color: #000;
}

/* 6. BOTTOM WORKSPACE */
.gate-workspace-bottom {
    display: flex;
    flex-grow: 1;
    min-height: 0;
}

.gate-ques-section {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    border-right: 1px solid #ccc;
    min-width: 0;
    background: #fff;
}

.gate-right-panel {
    width: 280px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    border-left: 2px solid #ccc;
    border-right: 2px solid #ccc;
    background-color: #fff;
}

/* --- THE QUESTION AREA --- */
.gate-question-header {
    display: flex;
    justify-content: space-between;
    padding: 4px 10px;
    border-bottom: 1px solid #ccc;
    font-size: 13px;
    flex-shrink: 0;
}

.gate-q-marks .gate-pos-marks {
    color: green;
    font-weight: bold;
}

.gate-q-marks .gate-neg-marks {
    color: red;
    font-weight: bold;
}

.gate-question-area-wrapper {
    position: relative;
    flex-grow: 1;
    min-height: 0;
    display: flex;
    padding: 6px;
    background-color: #fcfcfc;
}

/* 7. Dedicated Question Box */
.gate-question-content-box {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    border: 1px solid #ccc;
    background-color: #fff;
    position: relative;
    margin-right: 15px;
}

/* The Grey Title Bar inside the box */
.gate-question-number-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #ccc;
    padding: 6px 10px;
    font-size: 14px;
    background-color: #fff;
}

.gate-question-number-header b {
    color: black;
}

/* Custom Scroll Arrows */
.gate-scroll-btn {
    width: 20px;
    height: 20px;
    cursor: pointer;
    display: none;
}

.gate-scroll-down-btn {
    margin-right: 0px;
}

.gate-scroll-up-btn {
    position: absolute;
    bottom: 5px;
    right: 18px;
    z-index: 10;
}

/* Scrollable Container */
.gate-question-scroll-body {
    flex-grow: 1;
    overflow-y: auto;
    padding: 15px 15px 30px 15px;
}

/* CUSTOM SCROLLBAR */
.gate-question-scroll-body::-webkit-scrollbar {
    width: 10px;
}

.gate-question-scroll-body::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-left: 1px solid #ddd;
}

.gate-question-scroll-body::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 5px;
}

.gate-question-scroll-body::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

.gate-question-text {
    font-size: 18px;
    line-height: 1.5;
    color: #000;
}

.gate-question-text> :last-child {
    margin-bottom: 0;
}

/* Restore list styling for question content */
.gate-question-text ul,
.gate-question-text ol,
.gate-options ul,
.gate-options ol {
    margin-left: 2px;
    padding-left: 5px;
    margin-top: 5px;
    margin-bottom: 5px;
}

.gate-question-text li,
.gate-options li {
    margin-bottom: 4px;
}

/* Stop layout shifts while images load */
.gate-question-text img,
.gate-options img {
    background-color: #f7f9fc;
    border-radius: 4px;
    max-width: 100%;
    text-align: center;
    margin-top: 8px;
    position: relative;
}

/* Options Styling */
.gate-options {
    margin-top: 15px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 0 5px 2px;
}

/* MCQ/MSQ option containers added dynamically by exam_script.js */
.gate-options .option {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 5px 8px;
    cursor: pointer;
    border-radius: 3px;
    font-size: 15px;
}

.gate-options .option:hover {
    background: #f0f7ff;
}

.gate-options .option.selected {
    background: #e3f2fd;
}

.gate-options .option input[type="radio"],
.gate-options .option input[type="checkbox"] {
    margin-top: 3px;
    accent-color: #337ab7;
}

/* Sidebar Toggle Sprite */
.gate-sidebar-toggle {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    z-index: 20;
}

.gate-sidebar-toggle.close {
	background: url('../images/instruction_image.png') no-repeat -5px -63px;
	width: 17px;
	height: 48px;
}

.gate-sidebar-toggle.open {
	background: url('../images/instruction_image.png') no-repeat -30px -63px;
	width: 17px;
	height: 48px;
}

/* 8. Fixed Action Footer */
.gate-question-footer {
    display: flex;
    justify-content: space-between;
    padding: 8px 10px;
    border-top: 1px solid #ccc;
    background-color: #f9f9f9;
    flex-shrink: 0;
}

.gate-footer-btn {
    font-weight: 600;
    padding: 15px 22px;
    border: 1px solid #ccc;
    background-color: white;
    cursor: pointer;
    border-radius: 3px;
    font-size: 13px;
    color: #333;
}

.gate-footer-btn:hover {
    background-color: #147eb3;
    color: white;
    font-weight: 600;
}

.gate-btn-primary {
    background-color: #1875b3;
    color: white;
    border-color: #1875b3;
    font-weight: bold;
}

.gate-btn-primary:hover {
    background-color: #125b8e;
    color: white;
}

.gate-footer-right {
    display: flex;
    gap: 10px;
}

.gate-version-bar {
    background-color: #6c7a89;
    color: white;
    text-align: center;
    padding: 2px;
    font-size: 11px;
    flex-shrink: 0;
}

/* --- RIGHT PALETTE AREA --- */
.gate-status-legend {
    padding: 8px;
    border-bottom: 1px solid #ccc;
    font-size: 11px;
    flex-shrink: 0;
    background-color: #fff;
}

.gate-legend-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
}

.gate-legend-item {
    display: flex;
    align-items: center;
    width: 48%;
    gap: 5px;
}

.gate-legend-item.gate-full-width {
    width: 100%;
}

.gate-legend-item span {
    line-height: 1.1;
    color: #333;
}

.gate-palette-header {
    background-color: #1875b3;
    color: white;
    font-weight: bold;
    padding: 6px 10px;
    font-size: 13px;
    flex-shrink: 0;
}

.gate-palette-container {
    background-color: #e5f1f8;
    padding: 10px;
    flex-grow: 1;
    min-height: 0;
    overflow-y: auto;
}

.gate-choose-q-text {
    color: black;
    font-weight: bold;
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 13px;
}

.gate-question-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.gate-submit-container {
    background-color: #e5f1f8;
    padding: 10px;
    text-align: center;
    border-top: 1px solid #ccc;
    flex-shrink: 0;
}

.gate-submit-btn {
    background-color: #5bc0de;
    color: white;
    border: 1px solid #46b8da;
    padding: 8px 25px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.gate-submit-btn:hover {
    background-color: #31b0d5;
}

/* 9. Grid Sprites Base */
.gate-sprite-shape,
.gate-question-grid .p-btn {
    background-image: url('../images/questions-sprite.png');
    background-repeat: no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 14px;
    cursor: pointer;
}

/* Palette button overrides for the new sprite-based UI */
.gate-question-grid .p-btn {
    width: 50px !important;
    height: 42px !important;
    border: none !important;
    border-radius: 0 !important;
    background-color: transparent !important;
    padding-bottom: 3px;
}

.gate-question-grid .p-btn.not-visited {
    background-position: -159px -4px !important;
    width: 44px !important;
    height: 43px !important;
    color: #000 !important;
    clip-path: none !important;
}

.gate-question-grid .p-btn.answered {
    background-position: -4px -5px !important;
    width: 50px !important;
    height: 42px !important;
    clip-path: none !important;
    transform: none !important;
    color: white !important;
    border-color: transparent !important;
}

.gate-question-grid .p-btn.answered span {
    transform: none !important;
}

.gate-question-grid .p-btn.not-answered {
    background-position: -57px -6px !important;
    width: 49px !important;
    height: 41px !important;
    clip-path: none !important;
    color: white !important;
    border-color: transparent !important;
}

.gate-question-grid .p-btn.marked {
    background-position: -106px -1px !important;
    width: 52px !important;
    height: 49px !important;
    border-radius: 0 !important;
    color: white !important;
    margin: 0 !important;
}

.gate-question-grid .p-btn.current {
    /* border: 2px solid #1565c0 !important;
    box-shadow: 0 0 3px rgba(21, 101, 192, 0.4) !important; */
}

/* Small sprites for legend */
.gate-status-answered-small {
    background-position: -7px -55px;
    width: 29px;
    height: 26px;
}

.gate-status-not-answered-small {
    background-position: -42px -56px;
    width: 29px;
    height: 26px;
}

.gate-status-not-visited-small {
    background-position: -108px -56px;
    width: 27px;
    height: 26px;
    color: black !important;
}

.gate-status-review-small {
    background-position: -75px -54px;
    width: 28px;
    height: 28px;
}

.gate-status-answered-review-small {
    background-position: -9px -82px;
    width: 35px;
    height: 35px;
}

/* --- 10. Calculator Modal Styles --- */
.gate-calc-modal {
    display: none;
    position: absolute;
    top: 60px;
    right: 10px;
    width: 490px;
    height: 2px;
    background-color: #e8e8e8;
    border: 1px solid #999;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    border-radius: 0;
    overflow: visible;
}

.gate-calc-modal.minimized .gate-calc-body {
    display: none;
}

.gate-calc-modal.minimized {
    width: 300px;
}

.gate-calc-modal.minimized .gate-calc-title {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gate-calc-header {
    background: linear-gradient(to bottom, #b8d4e8, #8ab8d8);
    color: #333;
    padding: 4px 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    user-select: none;
    font-size: 12px;
    border-bottom: 1px solid #7ca8c4;
}

.gate-calc-title {
    font-weight: bold;
    font-size: 12px;
    color: #333;
}

.gate-calc-controls {
    display: flex;
    gap: 4px;
    align-items: center;
}

.gate-calc-help-btn {
    background: #5cb85c;
    color: white;
    border: 1px solid #4cae4c;
    border-radius: 2px;
    cursor: pointer;
    font-size: 11px;
    padding: 1px 10px;
    font-weight: bold;
}

.gate-calc-help-btn:hover {
    background: #449d44;
}

.gate-calc-window-btn {
    background: transparent;
    color: #333;
    border: 1px solid #aaa;
    cursor: pointer;
    font-size: 18px;
    padding: 1px 10px;
    line-height: 22px;
    font-weight: bold;
    min-width: 28px;
    text-align: center;
}

.gate-calc-window-btn:hover {
    background: rgba(0, 0, 0, 0.1);
}

.gate-calc-body {
    width: 480px;
    height: 309px;
    background-color: #ddd;
    padding: 0;
}

/* NAT Keypad styling inside the GATE interface — LIGHT MODE ONLY */
.nat-keypad-container {
    padding: 10px;
    display: inline-block;
    background: #f0f0f0 !important;
    border-radius: 6px;
    border: 1px solid #ccc;
}

.nat-display,
.nat-input {
    width: 100%;
    padding: 8px 10px;
    font-size: 16px;
    border: 1px solid #999 !important;
    border-radius: 3px;
    margin-bottom: 8px;
    background: #fff !important;
    color: #000 !important;
    font-family: monospace;
}

.nat-keypad-grid {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nat-keypad-row {
    display: flex;
    gap: 4px;
}

.nat-key {
    flex: 1;
    padding: 10px 0;
    font-size: 16px;
    font-weight: bold;
    border: 1px solid #bbb !important;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    background: #e8e8e8 !important;
    color: #333 !important;
    transition: background 0.1s;
}

.nat-key:hover {
    background: #d0d0d0 !important;
}

.nat-key-backspace,
.nat-key-clear {
    background: #ddd !important;
    color: #333 !important;
    font-size: 13px;
    font-weight: 600;
}

.nat-key-arrow {
    font-size: 18px;
    background: #ddd !important;
    color: #333 !important;
}

/* ============================================
   QUESTION PAPER MODAL — LIGHT MODE ONLY
   ============================================ */
.question-paper-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.question-paper-container {
    background: #fff !important;
    color: #000 !important;
    width: 85%;
    max-width: none;
    max-height: 90vh;
    border-radius: 4px;
    overflow-y: auto;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
}

.question-paper-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 15px;
    background: #c0392b !important;
    color: #fff !important;
    position: sticky;
    top: 0;
    z-index: 1;
    border-radius: 4px 4px 0 0;
    flex-shrink: 0;
}

.question-paper-header h2 {
    margin: 0;
    font-size: 18px;
    color: #fff !important;
}

.qp-close-btn {
    background: transparent;
    border: none;
    color: #fff !important;
    font-size: 14px;
    cursor: pointer;
    padding: 2px 8px;
    font-weight: bold;
}

.qp-close-btn span {
    font-size: 18px;
    margin-left: 2px;
}

.qp-close-btn:hover {
    opacity: 0.7;
}

/* Warning bar below question paper header */
.qp-warning-bar {
    background: #fff3cd;
    color: #c0392b;
    padding: 8px 15px;
    font-size: 13px;
    font-weight: 600;
    border-bottom: 1px solid #e0c885;
    flex-shrink: 0;
}

.question-paper-content {
    padding: 20px;
    background: #fff !important;
    color: #000 !important;
    flex: 1;
    overflow-y: auto;
}

.qp-section-title {
    color: #c0392b !important;
    font-size: 18px;
    margin: 15px 0 10px;
    padding-bottom: 5px;
    border-bottom: 2px solid #e1e9f6;
}

.qp-question-block {
    margin-bottom: 20px;
    padding: 12px;
    background: #fafafa !important;
    border: 1px solid #e0e0e0 !important;
    border-radius: 6px;
    color: #000 !important;
}

.qp-question-header {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    font-weight: bold;
    color: #333 !important;
    margin-bottom: 8px;
    padding-bottom: 5px;
    border-bottom: 1px solid #eee;
}

.qp-question-text {
    font-size: 15px;
    line-height: 1.5;
    color: #000 !important;
}

.qp-options-list {
    margin-top: 8px;
    padding-left: 20px;
    color: #000 !important;
}

.qp-options-list li {
    margin-bottom: 4px;
    color: #000 !important;
}

/* ============================================
   FORCE LIGHT MODE ON GATE EXAM INTERFACE
   Override any dark mode theming inside the exam
   ============================================ */
.gate-exam-root,
.gate-exam-root * {
    color-scheme: light !important;
}

/* Remove the blue triangle pointer from the section pill - not in real GATE */
.gate-exam-name-pill::after {
    display: none !important;
}

/* ============================================
   FIX NOT-VISITED SPRITE
   The old .p-btn styles set background-color
   which covers the sprite. Force transparent bg.
   ============================================ */
.gate-question-grid .p-btn {
    background-color: transparent !important;
    border: none !important;
}

/* Override old clip-path and transforms that break sprites */
.gate-question-grid .p-btn.answered {
    clip-path: none !important;
    transform: none !important;
}

.gate-question-grid .p-btn.answered span {
    transform: none !important;
}

.gate-question-grid .p-btn.not-answered {
    clip-path: none !important;
}

/* ============================================
   OLD CALCULATOR OVERLAY — LIGHT MODE
   ============================================ */
.calculator-overlay {
    position: fixed;
    top: 80px;
    right: 300px;
    width: 400px;
    height: 2px;
    background: #f5f5f5 !important;
    border: 1px solid #999;
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 10001;
    display: flex;
    flex-direction: column;
}

.calculator-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 12px;
    background: linear-gradient(to bottom, #4a90e2, #1875b3) !important;
    color: #fff !important;
    cursor: move;
    user-select: none;
    border-radius: 6px 6px 0 0;
}

.calc-title {
    font-size: 13px;
    font-weight: 500;
    color: #fff !important;
}

.calc-close-btn {
    background: transparent;
    border: none;
    color: #fff !important;
    font-size: 20px;
    cursor: pointer;
}

.calculator-iframe {
    width: 100%;
    height: 250px;
    border: none;
    background: #ddd;
}

.gate-q-type {
    color: black;
}

.gate-q-marks {
    color: black;
}

.option-text p {
    color: black;
}

.gate-question-grid .p-btn.not-visited {
    background: url('../images/questions-sprite.png') no-repeat -159px -4px;
    width: 44px;
    height: 43px;
}

/* Marked for review only — purple circle sprite */
.gate-question-grid .p-btn.marked {
    background-position: -106px -1px !important;
    width: 52px !important;
    height: 49px !important;
    border-radius: 0 !important;
    color: white !important;
    margin: 0 !important;
}

/* Answered & Marked for Review — user-provided spritecow coordinates */
.gate-question-grid .p-btn.marked-answered {
    background: url('../images/questions-sprite.png') no-repeat -65px -179px !important;
    width: 49px !important;
    height: 48px !important;
    border-radius: 0 !important;
    color: white !important;
    margin: 0 !important;
    background-color: transparent !important;
    border: none !important;
    clip-path: none !important;
}

/* ============================================
   SECTION TAB (i) INFO ICON STYLES
   ============================================ */
.gate-section-tab-name {
    max-width: 130px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: inline-block;
    vertical-align: middle;
}

.gate-section-nav-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 8px;
    cursor: pointer;
    flex-shrink: 0;
}

.gate-section-tab-info {
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
    margin-left: 0px;
}

/* Fix dropdown overflow — keep within viewport */
.gate-info-dropdown {
    max-width: 260px;
    z-index: 9998;
}

/* Section tab (i) dropdown — extend RIGHT from icon */
.gate-section-tab-info .gate-info-dropdown {
    left: 0;
    right: auto;
}

/* Exam name pill dropdown — extend RIGHT from pill */
.gate-exam-name-pill .gate-info-dropdown {
    left: 0;
    right: auto;
}

.option-text b {
    color: black;
}

.gate-question-number-header b {
    font-weight: 900;
}

#questionNumber {
    font-weight: 900;
}

.gate-footer-btn {
    font-weight: 600;
    height: 38px;
    padding: 0 22px; /* Set top/bottom padding to 0, keep left/right */
    border: 1px solid #ccc;
    background-color: white;
    cursor: pointer;
    border-radius: 3px;
    font-size: 13px;
    color: #333;
}

#saveNext {
    background-color: #147eb3;
    color: white;
    font-weight: 700;
}

.p-btn {
    font-weight: 200;
}

/* Container - transparent/white, no colored background */
.nat-keypad-container {
    display: inline-flex !important;
    flex-direction: column !important;
    align-items: center !important;
    background-color: transparent !important;
    padding: 8px !important;
    gap: 4px !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
}

/* Display input — slim */
.nat-display.nat-input {
    width: 190px !important;
    height: 20px !important;
    font-size: 13px !important;
    padding: 1px 4px !important;
    border: 2px inset #999 !important;
    background: #fff !important;
    text-align: left !important;
    outline: none !important;
    box-sizing: border-box !important;
    border-radius: 0 !important;
    box-shadow: none !important;
}

/* Keypad grid */
.nat-keypad-grid {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 3px !important;
    width: 100% !important;
}

/* Each row */
.nat-keypad-row {
    display: flex !important;
    flex-direction: row !important;
    justify-content: center !important;
    gap: 3px !important;
}

/* Base key — flat, compact, no shadow, slight radius */
.nat-key {
    width: 52px !important;
    height: 28px !important;
    font-size: 13px !important;
    font-weight: normal !important;
    font-family: Arial, sans-serif !important;
    background-color: #f0ece0 !important;
    border: 1px solid #888 !important;
    border-radius: 4px !important;
    cursor: pointer !important;
    box-shadow: none !important;
    color: #000 !important;
    padding: 0 !important;
    text-align: center !important;
    transition: background-color 0.1s !important;
    font-weight: 900;
}

/* Number/dot/minus hover — blue */
.nat-key:not(.nat-key-backspace):not(.nat-key-arrow):not(.nat-key-clear):hover {
    background-color: #aac4e8 !important;
    border-color: #5588bb !important;
}

.nat-key:active {
    background-color: #88aacc !important;
}

/* Backspace — green always, darker on hover */
.nat-key.nat-key-backspace {
    width: 162px !important;
    height: 28px !important;
    font-size: 13px !important;
    /* background-color: #7db832 !important; */
    border: 1px solid #5a8a1a !important;
    color: #000 !important;
    font-weight: bold !important;
    border-radius: 4px !important;
    box-shadow: none !important;
}

.nat-key.nat-key-backspace:hover {
    background-color: #7db832 !important;
}

/* Arrow keys — same as normal keys, green on hover */
.nat-key.nat-key-arrow {
    width: 52px !important;
    height: 28px !important;
    font-size: 14px !important;
    background-color: #f0ece0 !important;
    border: 1px solid #888 !important;
    border-radius: 4px !important;
    color: #000 !important;
    box-shadow: none !important;
}

.nat-key.nat-key-arrow:hover {
    background-color: #7db832 !important;
    border-color: #5a8a1a !important;
}

/* Clear All — same as normal keys, green on hover */
.nat-key.nat-key-clear {
    width: 162px !important;
    height: 28px !important;
    font-size: 13px !important;
    background-color: #f0ece0 !important;
    border: 1px solid #888 !important;
    border-radius: 4px !important;
    font-weight: normal !important;
    box-shadow: none !important;
}

.nat-key.nat-key-clear:hover {
    background-color: #7db832 !important;
    border-color: #5a8a1a !important;
}

.nat-key {
    font-weight: 900 !important;
}

.nat-key.nat-key-arrow {
    font-weight: 900 !important;
}

.nat-key.nat-key-clear {
    font-weight: 900 !important;
}