:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg: #f1f5f9;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --correct-bg: #16a34a;
    --correct-border: #15803d;
    --correct-light: #f0fdf4;
    --correct-text: #166534;
    --wrong-bg: #dc2626;
    --wrong-border: #b91c1c;
    --wrong-light: #fef2f2;
    --wrong-text: #991b1b;
}

* {
    box-sizing: border-box;
}

body {
    font-family:
        system-ui,
        -apple-system,
        "Segoe UI",
        Roboto,
        "Hiragino Sans",
        "Yu Gothic",
        sans-serif;
    background: var(--bg);
    color: var(--text-main);
    margin: 0;
    padding: 24px 16px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

main {
    max-width: 820px;
    width: 100%;
    margin: auto;
}

/* ==========================================================================
   Category Selector Screen (Halaman Depan Pemilihan Bidang)
   ========================================================================== */
.hero-header {
    text-align: center;
    margin-bottom: 32px;
}

.hero-badge {
    display: inline-block;
    background: #e0e7ff;
    color: #3730a3;
    font-weight: 700;
    font-size: 0.85rem;
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 2rem;
    font-weight: 800;
    color: #0f172a;
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin: 0 auto;
    max-width: 580px;
    line-height: 1.5;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.category-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
    position: relative;
    overflow: hidden;
}

.category-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.12);
}

.cat-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.cat-icon {
    font-size: 2.8rem;
    line-height: 1;
}

.cat-count-badge {
    background: #f1f5f9;
    color: #475569;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.cat-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 4px 0;
}

.cat-subtitle {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary);
    margin: 0 0 12px 0;
}

.cat-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0 0 20px 0;
}

.btn-start-cat {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px;
    background: #0f172a;
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s ease;
}

.category-card:hover .btn-start-cat {
    background: var(--primary);
}

/* ==========================================================================
   Level & Year Selection Screen (Pemilihan Tingkatan & Tahun Soal)
   ========================================================================== */
.config-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
}

.config-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 12px;
}

.config-title-group h2 {
    margin: 0 0 4px 0;
    font-size: 1.5rem;
    color: #0f172a;
}

.config-title-group p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.section-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: #334155;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.level-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.level-option {
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 18px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    background: #ffffff;
}

.level-option:hover {
    border-color: #cbd5e1;
    background: #f8fafc;
}

.level-option.selected {
    border-color: var(--primary);
    background: #eff6ff;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.15);
}

.level-badge {
    font-size: 1.25rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.level-desc {
    font-size: 0.84rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.year-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
}

.year-pill {
    padding: 10px 18px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 0.92rem;
    font-weight: 700;
    color: #334155;
    background: white;
    cursor: pointer;
    transition: all 0.15s ease;
}

.year-pill:hover {
    border-color: #cbd5e1;
    background: #f8fafc;
}

.year-pill.selected {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
}

.config-summary {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.summary-text {
    font-size: 0.92rem;
    color: #334155;
    font-weight: 600;
}

.summary-count {
    color: var(--primary);
    font-weight: 800;
}

.btn-launch-quiz {
    width: 100%;
    padding: 16px;
    background: #0f172a;
    color: white;
    border: none;
    border-radius: 14px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-launch-quiz:hover {
    background: var(--primary);
}

/* ==========================================================================
   Quiz Screen (Halaman Kuis)
   ========================================================================== */
.card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--border-color);
}

.header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-change-cat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: 20px;
    color: #334155;
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-change-cat:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.badge-cat-active {
    background: #dbeafe;
    color: #1e40af;
    font-weight: 700;
    font-size: 0.82rem;
    padding: 5px 12px;
    border-radius: 20px;
}

.badge-level-year {
    background: #fef3c7;
    color: #92400e;
    font-weight: 700;
    font-size: 0.82rem;
    padding: 5px 12px;
    border-radius: 20px;
    border: 1px solid #fde68a;
}

.badge-id {
    background: #e0e7ff;
    color: #3730a3;
    font-weight: 700;
    font-size: 0.82rem;
    padding: 5px 12px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.score-stats {
    display: flex;
    gap: 10px;
    font-size: 0.88rem;
    font-weight: 600;
}

.stat-badge {
    padding: 4px 10px;
    border-radius: 8px;
}

.stat-correct {
    background: #dcfce7;
    color: #166534;
}

.stat-wrong {
    background: #fee2e2;
    color: #991b1b;
}

.question {
    font-size: 1.35rem;
    line-height: 1.8;
    font-weight: 600;
    min-height: 80px;
    color: #1e293b;
}

/* Question Image Display */
.question-image-wrap {
    margin: 16px 0;
    text-align: center;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 12px;
    overflow: hidden;
    position: relative;
}

.question-image {
    max-width: 100%;
    max-height: 280px;
    object-fit: contain;
    border-radius: 10px;
    cursor: zoom-in;
    transition: transform 0.2s ease;
}

.question-image:hover {
    transform: scale(1.02);
}

.image-zoom-hint {
    font-size: 0.76rem;
    color: var(--text-muted);
    margin-top: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.reading {
    color: var(--text-muted);
    font-size: 1.02rem;
    line-height: 1.6;
    margin-top: 12px;
    font-style: italic;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border-color);
}

/* Interactive Choice Buttons */
.choice-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px;
}

.choice-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 18px 24px;
    border: 2px solid var(--border-color);
    border-radius: 14px;
    background: #ffffff;
    color: #1e293b;
    font-size: 1.25rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
    outline: none;
}

.choice-btn .symbol {
    font-size: 1.6rem;
    line-height: 1;
}

.choice-btn:hover:not(:disabled) {
    border-color: #cbd5e1;
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.choice-btn:active:not(:disabled) {
    transform: translateY(0);
}

/* Correct Choice Styling (Green) */
.choice-btn.correct {
    background: var(--correct-bg) !important;
    border-color: var(--correct-border) !important;
    color: #ffffff !important;
    box-shadow: 0 6px 16px rgba(22, 163, 74, 0.35);
}

/* Wrong Choice Styling (Red) */
.choice-btn.wrong {
    background: var(--wrong-bg) !important;
    border-color: var(--wrong-border) !important;
    color: #ffffff !important;
    box-shadow: 0 6px 16px rgba(220, 38, 38, 0.35);
}

/* Secondary highlight for the right answer when user guessed wrong */
.choice-btn.reveal-correct {
    background: #dcfce7 !important;
    border-color: var(--correct-bg) !important;
    color: var(--correct-text) !important;
    border-style: dashed;
}

.choice-btn:disabled {
    cursor: default;
}

/* Feedback Box */
.feedback-box {
    margin-top: 20px;
    padding: 16px 20px;
    border-radius: 12px;
    display: none;
    animation: fadeIn 0.25s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feedback-box.correct-box {
    background: var(--correct-light);
    border: 1px solid #bbf7d0;
    color: var(--correct-text);
}

.feedback-box.wrong-box {
    background: var(--wrong-light);
    border: 1px solid #fecaca;
    color: var(--wrong-text);
}

.feedback-title {
    font-weight: 700;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.feedback-explanation {
    font-size: 0.95rem;
    line-height: 1.5;
    color: #334155;
}

/* Navigation Buttons */
.nav-buttons {
    display: flex;
    gap: 12px;
    margin-top: 28px;
}

.nav-btn {
    flex: 1;
    padding: 14px 20px;
    border: 0;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#back {
    background: #e2e8f0;
    color: #334155;
}

#back:hover:not(:disabled) {
    background: #cbd5e1;
}

#next {
    background: #0f172a;
    color: #ffffff;
}

#next:hover:not(:disabled) {
    background: #1e293b;
}

.nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.footer-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding-top: 14px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.88rem;
    flex-wrap: wrap;
    gap: 10px;
}

.btn-reset {
    background: none;
    border: none;
    color: var(--text-muted);
    text-decoration: underline;
    cursor: pointer;
    font-size: 0.85rem;
    padding: 0;
}

.btn-reset:hover {
    color: #0f172a;
}

.keyboard-hints {
    font-size: 0.78rem;
    color: #94a3b8;
    text-align: center;
    margin-top: 14px;
}

/* Lightbox Modal for Zooming Images */
.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 4000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.lightbox-modal.open {
    opacity: 1;
    visibility: visible;
}

.lightbox-img-wrap {
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    background: white;
}

.btn-close-lightbox {
    position: absolute;
    top: 20px;
    right: 24px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
}

.btn-close-lightbox:hover {
    background: rgba(255, 255, 255, 0.4);
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 1.6rem;
    }
    .card, .config-card {
        padding: 20px;
    }
    .level-grid {
        grid-template-columns: 1fr;
    }
    .question {
        font-size: 1.2rem;
    }
    .choice-container {
        grid-template-columns: 1fr;
    }
    .choice-btn {
        padding: 14px;
        font-size: 1.1rem;
    }
    .header-left {
        width: 100%;
    }
}

/* ==========================================================================
   Quiz controls adjustment
   ========================================================================== */
main {
    padding-top: 76px;
}

.user-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 3000;
    margin: 0;
    padding: 14px max(24px, calc((100vw - 1180px) / 2));
}

#screen-quiz .card::before {
    display: none;
}

#screen-quiz .quiz-progress-panel {
    background: #e8f2ff;
}

#screen-quiz .quiz-progress-track {
    background: #c2dafa;
}

#screen-quiz .quiz-progress-value {
    background: #2563eb;
}

#screen-quiz .quiz-controls-dock {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2500;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    padding: 12px max(24px, calc((100vw - 1180px) / 2));
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid #e6e6e6;
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.06);
    backdrop-filter: blur(12px);
}

#screen-quiz .quiz-controls-dock .choice-container,
#screen-quiz .quiz-controls-dock .nav-buttons {
    display: contents;
}

#screen-quiz .quiz-controls-dock .choice-btn,
#screen-quiz .quiz-controls-dock .nav-btn {
    min-height: 52px;
    width: 100%;
}

#screen-quiz .quiz-controls-dock .choice-btn {
    border-radius: 12px;
}

#screen-quiz .quiz-controls-dock .nav-btn {
    border-radius: 12px;
}

#screen-quiz .card {
    padding-bottom: 104px;
}

#screen-quiz .footer-info,
#screen-quiz .keyboard-hints {
    display: none;
}

@media (max-width: 640px) {
    main {
        padding-top: 68px;
    }

    .user-topbar {
        padding: 12px;
    }

    #screen-quiz .quiz-controls-dock {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
    }

    #screen-quiz .card {
        padding-bottom: 150px;
    }
}

/* ==========================================================================
   Full product UI refresh — shared editorial system
   ========================================================================== */
html {
    background: #fff;
}

body {
    min-width: 320px;
    padding: 24px;
}

main {
    max-width: 1180px;
}

button,
input {
    font: inherit;
}

button:focus-visible,
input:focus-visible {
    outline: 3px solid var(--block-lilac);
    outline-offset: 3px;
}

/* Login and registration */
.login-overlay {
    background: var(--block-lilac);
    padding: 24px;
}

.login-card {
    border: 1px solid #000;
    border-radius: 24px;
    box-shadow: 12px 12px 0 #000;
    max-width: 480px;
    padding: 44px;
    text-align: left;
}

.login-logo {
    align-items: center;
    background: var(--block-lime);
    border: 1px solid #000;
    border-radius: 50%;
    display: flex;
    font-size: 1.8rem;
    height: 56px;
    justify-content: center;
    margin-bottom: 24px;
    width: 56px;
}

.login-card h2 {
    color: #000;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 500;
    letter-spacing: -0.06em;
    line-height: 1;
    margin-bottom: 10px;
}

.login-subtitle {
    color: #000;
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 32px;
    max-width: 32rem;
}

.login-field {
    margin-bottom: 18px;
}

.login-field label {
    color: #000;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.login-field input {
    border: 1px solid #000;
    border-radius: 8px;
    color: #000;
    min-height: 48px;
    padding: 12px 14px;
}

.login-field input:focus {
    border-color: #000;
    box-shadow: 0 0 0 3px var(--block-lime);
}

.login-field input::placeholder {
    color: #000;
    opacity: 0.45;
}

.login-error {
    background: var(--block-coral);
    border: 1px solid #000;
    border-radius: 8px;
    color: #000;
    line-height: 1.4;
}

.btn-login {
    border-radius: 50px;
    font-size: 1rem;
    min-height: 48px;
    padding: 10px 20px;
}

.btn-login:hover {
    background: var(--block-navy);
}

.login-note {
    color: #000;
    font-size: 0.85rem;
    line-height: 1.55;
    margin-top: 24px;
}

.link-button {
    color: #000;
    text-underline-offset: 3px;
}

/* Shared app chrome */
.user-topbar {
    background: #fff;
    border: 0;
    border-bottom: 1px solid var(--border-color);
    border-radius: 0;
    box-shadow: none;
    margin: -24px 0 64px;
    padding: 16px 0;
}

.user-topbar-name {
    color: #000;
    font-size: 0.9rem;
}

/* ===========================================================================
   Attendance Admin Panel
   =========================================================================== */
.attendance-backdrop { display: none; position: fixed; inset: 0; z-index: 90; background: rgba(15, 23, 42, .35); }
.attendance-backdrop.open { display: block; }
.attendance-panel { position: fixed; z-index: 100; top: 0; right: 0; width: min(430px, 100vw); height: 100vh; background: #fff; box-shadow: -12px 0 35px rgba(15, 23, 42, .18); transform: translateX(105%); transition: transform .22s ease; display: flex; flex-direction: column; }
.attendance-panel.open { transform: translateX(0); }
.attendance-panel-header { display: flex; justify-content: space-between; align-items: flex-start; padding: 24px; border-bottom: 1px solid var(--border-color); background: #f8fafc; }
.attendance-eyebrow { color: #2563eb; font-size: .72rem; font-weight: 800; letter-spacing: .08em; }
.attendance-panel h2 { margin: 4px 0 0; font-size: 1.3rem; }
.attendance-close { border: 0; background: transparent; font-size: 1.8rem; color: #64748b; cursor: pointer; line-height: 1; }
.attendance-panel-body { overflow-y: auto; padding: 20px; }
.attendance-session-form { display: grid; gap: 7px; }
.attendance-session-form label { color: #334155; font-size: .82rem; font-weight: 700; margin-top: 5px; }
.attendance-session-form label span { color: #94a3b8; font-weight: 400; }
.attendance-session-form select, .attendance-session-form input { width: 100%; padding: 10px 11px; border: 1px solid #cbd5e1; border-radius: 9px; background: white; color: #0f172a; font: inherit; }
.attendance-primary-btn { margin-top: 8px; border: 0; border-radius: 9px; padding: 11px; background: #2563eb; color: white; font-weight: 800; cursor: pointer; }
.attendance-primary-btn:disabled { opacity: .6; cursor: wait; }
.attendance-session-info { display: grid; gap: 2px; margin-top: 18px; padding: 12px; border-radius: 10px; background: #eff6ff; color: #1e3a8a; }
.attendance-session-info span { font-size: .82rem; color: #475569; }
.attendance-delete-btn { width: fit-content; margin-top: 8px; padding: 5px 8px; border: 1px solid #fecaca; border-radius: 7px; background: #fff; color: #b91c1c; font-size: .75rem; font-weight: 700; cursor: pointer; }
.attendance-delete-btn:hover { background: #fef2f2; }
.attendance-summary { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; padding: 10px 12px; border: 1px solid #bbf7d0; border-radius: 10px; background: #f0fdf4; color: #166534; }
.attendance-summary span { color: #64748b; font-size: .78rem; }
.attendance-actions { gap: 7px; margin: 12px 0; }
.attendance-actions button { flex: 1; padding: 8px 5px; border: 1px solid #cbd5e1; border-radius: 8px; background: #fff; color: #475569; font-size: .75rem; cursor: pointer; }
.attendance-actions button:hover { background: #f8fafc; }
.attendance-roster { display: grid; gap: 8px; }
.attendance-person { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px; border: 1px solid #e2e8f0; border-radius: 10px; background: #fff; }
.attendance-person-name { display: flex; align-items: center; gap: 8px; min-width: 0; font-size: .9rem; font-weight: 650; }
.attendance-person-name > span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attendance-status-dot { width: 22px; flex: 0 0 22px; text-align: center; }
.attendance-status-select { max-width: 145px; padding: 6px; border: 1px solid #cbd5e1; border-radius: 7px; font-size: .76rem; font-weight: 700; }
.attendance-status-select.status-present { color: #166534; background: #f0fdf4; }
.attendance-status-select.status-late { color: #854d0e; background: #fefce8; }
.attendance-status-select.status-excused { color: #1e40af; background: #eff6ff; }
.attendance-status-select.status-absent { color: #991b1b; background: #fef2f2; }
.attendance-empty { padding: 24px 10px; text-align: center; color: #64748b; font-size: .88rem; }
.attendance-feedback { min-height: 22px; margin-top: 12px; color: #166534; font-size: .8rem; }
.attendance-feedback.error { color: #b91c1c; }

.btn-user-logout {
    background: #000;
    border: 1px solid #000;
    border-radius: 50px;
    color: #fff;
    min-height: 40px;
    padding: 8px 16px;
}

.btn-user-logout:hover {
    background: var(--block-navy);
    border-color: var(--block-navy);
    color: #fff;
}

/* Category landing */
#screen-categories {
    padding-bottom: 48px;
}

.hero-header {
    margin: 0 auto 48px;
    max-width: 820px;
    text-align: left;
}

.hero-badge {
    background: #000;
    border-radius: 50px;
    color: #fff;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
    padding: 9px 14px;
    text-transform: uppercase;
}

.hero-title {
    color: #000;
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 400;
    letter-spacing: -0.08em;
    line-height: 0.96;
    margin-bottom: 24px;
    max-width: 760px;
}

.hero-subtitle {
    color: #000;
    font-size: 1.15rem;
    line-height: 1.5;
    margin: 0;
    max-width: 650px;
    opacity: 0.72;
}

.category-grid {
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.category-card {
    background: var(--surface-soft);
    border: 1px solid #000;
    border-radius: 24px;
    box-shadow: none;
    min-height: 300px;
    padding: 24px;
}

.category-card:nth-child(3n + 1) {
    background: var(--block-lime);
}

.category-card:nth-child(3n + 2) {
    background: var(--block-lilac);
}

.category-card:nth-child(3n + 3) {
    background: var(--block-coral);
}

.category-card:hover {
    border-color: #000;
    box-shadow: 8px 8px 0 #000;
    transform: translate(-3px, -3px);
}

.cat-top {
    margin-bottom: 36px;
}

.cat-icon {
    font-size: 2.4rem;
}

.cat-count-badge {
    background: #fff;
    border: 1px solid #000;
    border-radius: 50px;
    color: #000;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 10px;
    letter-spacing: 0.05em;
    padding: 7px 10px;
}

.cat-title {
    color: #000;
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: -0.04em;
}

.cat-subtitle,
.cat-desc {
    color: #000;
}

.cat-subtitle {
    font-size: 0.95rem;
    font-weight: 700;
}

.cat-desc {
    font-size: 0.95rem;
    line-height: 1.5;
    opacity: 0.75;
}

.btn-start-cat {
    background: #000;
    border-radius: 50px;
    font-size: 0.95rem;
    min-height: 46px;
    padding: 10px 18px;
}

.category-card:hover .btn-start-cat {
    background: #fff;
    color: #000;
}

/* Configuration */
#screen-config {
    padding-bottom: 48px;
}

.config-card {
    border: 1px solid #000;
    border-radius: 24px;
    box-shadow: 10px 10px 0 var(--block-lilac);
    padding: 40px;
}

.config-header {
    align-items: flex-start;
    border-bottom: 0;
    margin-bottom: 40px;
    padding-bottom: 0;
}

.config-title-group h2 {
    color: #000;
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 500;
    letter-spacing: -0.07em;
    line-height: 1;
}

.config-title-group p {
    color: #000;
    font-size: 1rem;
    line-height: 1.5;
    margin-top: 14px;
    opacity: 0.7;
}

.config-header .btn-change-cat {
    background: #fff;
    border: 1px solid #000;
    border-radius: 50px;
    color: #000;
    min-height: 44px;
    padding: 9px 16px;
}

.section-label {
    color: #000;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 12px;
    letter-spacing: 0.05em;
    margin: 30px 0 12px;
    text-transform: uppercase;
}

.level-option {
    background: #fff;
    border: 1px solid #000;
    border-radius: 16px;
    min-height: 130px;
    padding: 20px;
}

.level-option:hover {
    background: var(--surface-soft);
    border-color: #000;
}

.level-option.selected {
    background: var(--block-lime);
    border-color: #000;
    box-shadow: 6px 6px 0 #000;
}

.level-badge,
.level-desc {
    color: #000;
}

.level-badge {
    font-size: 1.2rem;
}

.level-desc {
    font-size: 0.9rem;
    opacity: 0.72;
}

.year-pill {
    background: #fff;
    border: 1px solid #000;
    border-radius: 50px;
    color: #000;
    min-height: 44px;
    padding: 9px 16px;
}

.year-pill:hover {
    background: var(--surface-soft);
    border-color: #000;
}

.year-pill.selected {
    background: #000;
    border-color: #000;
    color: #fff;
}

.year-pill:disabled {
    cursor: not-allowed;
    opacity: 0.35;
}

.config-summary {
    background: var(--block-lime);
    border: 1px solid #000;
    border-radius: 12px;
    color: #000;
    margin-top: 36px;
    padding: 16px 18px;
}

.summary-text,
.summary-count {
    color: #000;
}

.summary-count {
    font-size: 1.1rem;
}

#config-summary-detail {
    color: #000 !important;
    opacity: 0.7;
}

.btn-launch-quiz {
    background: #000;
    border-radius: 50px;
    font-size: 1rem;
    min-height: 52px;
    padding: 12px 24px;
}

.btn-launch-quiz:hover {
    background: var(--block-navy);
}

/* Results */
.results-card {
    border: 1px solid #000;
    border-radius: 24px;
    box-shadow: 10px 10px 0 var(--block-lime);
    padding: 48px 40px;
}

.results-header {
    margin-bottom: 24px;
}

.results-trophy {
    align-items: center;
    background: var(--block-lilac);
    border: 1px solid #000;
    border-radius: 50%;
    display: flex;
    font-size: 2.4rem;
    height: 72px;
    justify-content: center;
    margin: 0 auto 24px;
    width: 72px;
}

.results-title {
    color: #000;
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 500;
    letter-spacing: -0.07em;
    line-height: 1;
}

.results-subtitle {
    color: #000;
    font-size: 1rem;
    opacity: 0.7;
}

.results-score-circle {
    background: var(--block-lime);
    border: 1px solid #000;
    height: 170px;
    width: 170px;
}

.results-score-circle.score-pass {
    background: var(--block-lime);
    border-color: #000;
}

.results-score-circle.score-near {
    background: var(--block-coral);
    border-color: #000;
}

.results-score-circle.score-fail {
    background: var(--block-lilac);
    border-color: #000;
}

.results-score-value,
.results-score-label {
    color: #000;
}

.results-score-value {
    font-size: 2.8rem;
}

.results-stats-grid {
    gap: 12px;
}

.results-stat-item {
    background: var(--surface-soft);
    border: 1px solid #000;
    border-radius: 16px;
}

.results-stat-item.correct-stat {
    background: var(--block-lime);
    border-color: #000;
}

.results-stat-item.wrong-stat {
    background: var(--block-coral);
    border-color: #000;
}

.results-stat-item.total-stat {
    background: var(--block-lilac);
    border-color: #000;
}

.results-stat-num,
.results-stat-lbl {
    color: #000;
}

.results-meta {
    background: var(--surface-soft);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: #000;
}

.btn-results-retry,
.btn-results-home {
    border-radius: 50px;
    min-height: 48px;
}

.btn-results-retry {
    background: #000;
}

.btn-results-retry:hover {
    background: var(--block-navy);
}

.btn-results-home {
    background: #fff;
    border: 1px solid #000;
    color: #000;
}

.btn-results-home:hover {
    background: var(--surface-soft);
    border-color: #000;
    color: #000;
}

@media (max-width: 640px) {
    body {
        padding: 16px 12px;
    }

    .login-card {
        box-shadow: 6px 6px 0 #000;
        padding: 28px 22px;
    }

    .user-topbar {
        margin: -16px 0 40px;
    }

    .hero-header {
        margin-bottom: 32px;
    }

    .hero-title {
        font-size: clamp(3.1rem, 16vw, 5rem);
    }

    .config-card,
    .results-card {
        box-shadow: 6px 6px 0 var(--block-lilac);
        padding: 28px 20px;
    }

    .config-header {
        align-items: stretch;
        flex-direction: column;
    }

    .config-header .btn-change-cat {
        align-self: flex-start;
    }

    .level-grid {
        grid-template-columns: 1fr;
    }

    .results-stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   User Login Screen
   ========================================================================== */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 5000;
}

.link-button {
    border: 0;
    background: none;
    color: var(--primary);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    padding: 0;
    text-decoration: underline;
}

.login-card {
    background: white;
    width: 100%;
    max-width: 420px;
    border-radius: 24px;
    padding: 40px 36px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    text-align: center;
}

.login-logo {
    font-size: 3.5rem;
    margin-bottom: 10px;
}

.login-card h2 {
    margin: 0 0 4px 0;
    font-size: 1.8rem;
    font-weight: 800;
    color: #0f172a;
}

.login-subtitle {
    margin: 0 0 28px 0;
    font-size: 0.92rem;
    color: var(--text-muted);
}

.login-form {
    text-align: left;
}

.login-field {
    margin-bottom: 16px;
}

.login-field label {
    display: block;
    font-size: 0.88rem;
    font-weight: 700;
    color: #334155;
    margin-bottom: 6px;
}

.login-field input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s ease;
    color: #0f172a;
}

.login-field input:focus {
    border-color: var(--primary);
}

.login-error {
    background: #fee2e2;
    color: #991b1b;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 12px;
    display: none;
    border: 1px solid #fecaca;
}

.score-save-status {
    margin: 16px auto 0;
    max-width: 520px;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.9rem;
    text-align: center;
}

.score-save-status:empty {
    display: none;
}

.score-save-status.success {
    background: #ecfdf5;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.score-save-status.warning {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fde68a;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s ease;
    margin-top: 4px;
}

.btn-login:hover {
    background: var(--primary-hover);
}

.login-note {
    margin: 20px 0 0 0;
    font-size: 0.82rem;
    color: #94a3b8;
    line-height: 1.4;
}

/* ==========================================================================
   User Top Bar
   ========================================================================== */
.user-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.user-topbar-name {
    font-size: 0.9rem;
    font-weight: 700;
    color: #334155;
}

.btn-user-logout {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 5px 12px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #475569;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-user-logout:hover {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #991b1b;
}

/* ==========================================================================
   Quiz Results / Score Screen
   ========================================================================== */
.results-card {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 40px 36px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    text-align: center;
    animation: fadeIn 0.4s ease;
}

.results-header {
    margin-bottom: 28px;
}

.results-trophy {
    font-size: 4rem;
    line-height: 1;
    margin-bottom: 12px;
    animation: trophyBounce 0.6s ease;
}

@keyframes trophyBounce {
    0% { transform: scale(0.5); opacity: 0; }
    70% { transform: scale(1.15); }
    100% { transform: scale(1); opacity: 1; }
}

.results-title {
    margin: 0 0 8px 0;
    font-size: 1.8rem;
    font-weight: 800;
    color: #0f172a;
}

.results-subtitle {
    margin: 0;
    font-size: 1rem;
    color: var(--text-muted);
}

.results-score-circle-wrap {
    display: flex;
    justify-content: center;
    margin: 28px 0;
}

.results-score-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 8px solid #e2e8f0;
    background: #f8fafc;
}

.results-score-circle.score-pass {
    border-color: #16a34a;
    background: #f0fdf4;
}

.results-score-circle.score-near {
    border-color: #d97706;
    background: #fffbeb;
}

.results-score-circle.score-fail {
    border-color: #dc2626;
    background: #fef2f2;
}

.results-score-value {
    font-size: 2.4rem;
    font-weight: 800;
    color: #0f172a;
    line-height: 1;
}

.results-score-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: 4px;
}

.results-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin: 24px 0;
}

.results-stat-item {
    background: #f8fafc;
    border-radius: 14px;
    padding: 16px 12px;
    border: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.results-stat-item.correct-stat {
    background: #f0fdf4;
    border-color: #bbf7d0;
}

.results-stat-item.wrong-stat {
    background: #fef2f2;
    border-color: #fecaca;
}

.results-stat-item.total-stat {
    background: #eff6ff;
    border-color: #bfdbfe;
}

.results-stat-num {
    font-size: 2rem;
    font-weight: 800;
    color: #0f172a;
    line-height: 1;
}

.results-stat-lbl {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-muted);
}

.results-meta {
    font-size: 0.88rem;
    color: #64748b;
    background: #f1f5f9;
    border-radius: 10px;
    padding: 10px 16px;
    margin-bottom: 24px;
}

.results-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-results-retry {
    flex: 1;
    min-width: 160px;
    padding: 14px 20px;
    background: #0f172a;
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s ease;
}

.btn-results-retry:hover {
    background: var(--primary);
}

.btn-results-home {
    flex: 1;
    min-width: 160px;
    padding: 14px 20px;
    background: #f1f5f9;
    color: #334155;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-results-home:hover {
    background: #e2e8f0;
    color: #0f172a;
}

@media (max-width: 480px) {
    .results-card {
        padding: 28px 20px;
    }
    .results-stats-grid {
        grid-template-columns: 1fr;
    }
    .results-score-circle {
        width: 130px;
        height: 130px;
    }
    .results-score-value {
        font-size: 2rem;
    }
}

/* ==========================================================================
   Quiz Editorial Refresh — DESIGN.md
   ========================================================================== */
:root {
    --primary: #000000;
    --primary-hover: #1f1d3d;
    --bg: #ffffff;
    --card-bg: #ffffff;
    --text-main: #000000;
    --text-muted: #000000;
    --border-color: #e6e6e6;
    --surface-soft: #f7f7f5;
    --block-lime: #dceeb1;
    --block-lilac: #c5b0f4;
    --block-coral: #f3c9b6;
    --block-navy: #1f1d3d;
    --semantic-success: #1ea64a;
}

body {
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Yu Gothic", sans-serif;
    background: var(--bg);
    color: var(--text-main);
    padding: 32px 24px;
}

main {
    max-width: 1080px;
}

#screen-quiz {
    padding-top: 24px;
}

#screen-quiz .card {
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: none;
    padding: 32px 40px 136px;
    position: relative;
    overflow: hidden;
}

#screen-quiz .card::before {
    content: "";
    display: none;
    height: 8px;
    margin: -32px -40px 28px;
    background: var(--block-lilac);
}

#screen-quiz .header-bar {
    align-items: flex-start;
    margin-bottom: 24px;
    gap: 16px;
}

#screen-quiz .header-left {
    gap: 8px;
}

#screen-quiz .btn-change-cat,
#screen-quiz .badge-cat-active,
#screen-quiz .badge-level-year,
#screen-quiz .badge-id {
    border-radius: 50px;
    font-size: 12px;
    line-height: 1.3;
    letter-spacing: 0.04em;
}

#screen-quiz .btn-change-cat {
    background: #fff;
    border: 1px solid var(--border-color);
    color: #000;
    padding: 8px 14px;
    font-weight: 600;
}

#screen-quiz .btn-change-cat:hover {
    background: var(--surface-soft);
    border-color: #000;
}

#screen-quiz .badge-cat-active {
    background: var(--block-lime);
    color: #000;
    padding: 8px 14px;
}

#screen-quiz .badge-level-year {
    background: var(--surface-soft);
    border: 1px solid var(--border-color);
    color: #000;
    padding: 7px 13px;
}

#screen-quiz .badge-id {
    background: #000;
    color: #fff;
    padding: 8px 14px;
}

#screen-quiz .score-stats {
    gap: 8px;
    font-size: 13px;
}

#screen-quiz .stat-badge {
    border-radius: 50px;
    padding: 8px 13px;
    border: 1px solid var(--border-color);
}

#screen-quiz .stat-correct {
    background: #fff;
    color: var(--semantic-success);
    border-color: #b8dfc2;
}

#screen-quiz .stat-wrong {
    background: var(--block-coral);
    color: #000;
    border-color: transparent;
}

.quiz-progress-panel {
    background: var(--block-lime);
    border-radius: 24px;
    padding: 18px 20px 16px;
    margin-bottom: 32px;
}

.quiz-progress-copy {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 10px;
}

.quiz-eyebrow {
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.quiz-progress-label {
    font-size: 13px;
    font-weight: 650;
}

.quiz-progress-track {
    height: 8px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.12);
    border-radius: 9999px;
}

.quiz-progress-value {
    height: 100%;
    width: 0;
    background: #000;
    border-radius: inherit;
    transition: width 0.25s ease;
}

#screen-quiz .question {
    min-height: 0;
    max-width: 900px;
    color: #000;
    font-size: clamp(1.6rem, 3vw, 2.35rem);
    font-weight: 500;
    letter-spacing: -0.035em;
    line-height: 1.25;
    margin: 0 auto 22px;
}

#screen-quiz .question-image-wrap {
    background: var(--surface-soft);
    border: 0;
    border-radius: 8px;
    padding: 20px;
    margin: 24px 0;
}

#screen-quiz .reading {
    border-bottom: 1px solid var(--border-color);
    color: #000;
    font-size: 15px;
    font-style: normal;
    line-height: 1.55;
    margin: 0 auto;
    max-width: 900px;
    opacity: 0.7;
    padding-bottom: 20px;
}

#screen-quiz .choice-container {
    gap: 12px;
    margin: 28px auto 0;
    max-width: 900px;
}

#screen-quiz .choice-btn {
    background: #fff;
    border: 1px solid #000;
    border-radius: 50px;
    color: #000;
    font-size: 18px;
    font-weight: 650;
    min-height: 64px;
    padding: 14px 24px;
    transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}

#screen-quiz .choice-btn:hover:not(:disabled) {
    background: #000;
    border-color: #000;
    box-shadow: none;
    color: #fff;
    transform: translateY(-2px);
}

#screen-quiz .choice-btn .symbol {
    font-size: 25px;
}

#screen-quiz .choice-btn.correct {
    background: var(--semantic-success) !important;
    border-color: var(--semantic-success) !important;
    box-shadow: none;
}

#screen-quiz .choice-btn.wrong {
    background: var(--block-coral) !important;
    border-color: #000 !important;
    color: #000 !important;
    box-shadow: none;
}

#screen-quiz .choice-btn.reveal-correct {
    background: var(--block-lime) !important;
    border: 1px dashed #000 !important;
    color: #000 !important;
}

#screen-quiz .feedback-box {
    border: 0;
    border-radius: 8px;
    color: #000;
    margin: 20px auto 0;
    max-width: 900px;
    padding: 18px 20px;
}

#screen-quiz .feedback-box.correct-box {
    background: var(--block-lime);
}

#screen-quiz .feedback-box.wrong-box {
    background: var(--block-coral);
}

#screen-quiz .feedback-explanation {
    color: #000;
    font-size: 16px;
    line-height: 1.55;
}

#screen-quiz .nav-buttons {
    gap: 10px;
    margin: 28px auto 0;
    max-width: 900px;
}

#screen-quiz .nav-btn {
    border: 1px solid #000;
    border-radius: 50px;
    font-size: 16px;
    min-height: 48px;
    padding: 10px 20px;
}

#screen-quiz #back {
    background: #fff;
    color: #000;
}

#screen-quiz #back:hover:not(:disabled) {
    background: var(--surface-soft);
}

#screen-quiz #next {
    background: #000;
    color: #fff;
}

#screen-quiz #next:hover:not(:disabled) {
    background: var(--block-navy);
}

#screen-quiz .footer-info {
    border-top: 1px solid var(--border-color);
    color: #000;
    font-size: 12px;
    margin-top: 24px;
    padding-top: 16px;
}

#screen-quiz .btn-reset {
    color: #000;
    font-size: 12px;
    opacity: 0.65;
}

#screen-quiz .btn-reset:hover {
    opacity: 1;
}

#screen-quiz .keyboard-hints {
    color: #000;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 10px;
    letter-spacing: 0.04em;
    opacity: 0.55;
}

#screen-quiz button:focus-visible {
    outline: 3px solid var(--block-lilac);
    outline-offset: 3px;
}

@media (max-width: 640px) {
    body {
        padding: 16px 12px;
    }

    #screen-quiz {
        padding-top: 8px;
    }

    #screen-quiz .card {
        border-radius: 24px;
        padding: 24px 18px 20px;
    }

    #screen-quiz .card::before {
        margin: -24px -18px 24px;
    }

    #screen-quiz .header-bar {
        margin-bottom: 20px;
    }

    #screen-quiz .score-stats {
        width: 100%;
    }

    #screen-quiz .stat-badge {
        flex: 1;
        text-align: center;
    }

    .quiz-progress-panel {
        border-radius: 16px;
        margin-bottom: 24px;
        padding: 16px;
    }

    .quiz-progress-copy {
        align-items: flex-start;
        flex-direction: column;
        gap: 4px;
    }

    #screen-quiz .choice-container,
    #screen-quiz .nav-buttons {
        grid-template-columns: 1fr;
    }

    #screen-quiz .choice-btn {
        min-height: 56px;
    }
}

/* Final quiz layout overrides */
main {
    padding-top: 76px;
}

.user-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 3000;
    margin: 0;
    padding: 14px max(24px, calc((100vw - 1180px) / 2));
}

#screen-quiz .quiz-progress-panel {
    background: #e8f2ff;
}

#screen-quiz .quiz-progress-track {
    background: #c2dafa;
}

#screen-quiz .quiz-progress-value {
    background: #2563eb;
}

#screen-quiz .quiz-controls-dock {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2500;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    padding: 12px max(24px, calc((100vw - 1180px) / 2));
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid #e6e6e6;
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.06);
    backdrop-filter: blur(12px);
}

#screen-quiz .quiz-controls-dock .choice-container,
#screen-quiz .quiz-controls-dock .nav-buttons {
    display: contents;
}

#screen-quiz .quiz-controls-dock .choice-btn,
#screen-quiz .quiz-controls-dock .nav-btn {
    min-height: 52px;
    width: 100%;
}

#screen-quiz .quiz-controls-dock .choice-btn,
#screen-quiz .quiz-controls-dock .nav-btn {
    border-radius: 12px;
}

#screen-quiz .footer-info,
#screen-quiz .keyboard-hints {
    display: none;
}

@media (max-width: 640px) {
    main {
        padding-top: 68px;
    }

    .user-topbar {
        padding: 12px;
    }

    #screen-quiz .quiz-controls-dock {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
    }

    #screen-quiz .card {
        padding-bottom: 168px;
    }
}

/* Stable quiz canvas and separated learning panels */
#screen-quiz {
    align-items: center;
    display: flex;
    justify-content: center;
    min-height: 70vh;
}

#screen-quiz .card {
    height: 70vh;
    max-height: 70vh;
    margin: auto;
    overflow-y: auto;
    width: 60vw;
}

#screen-quiz .quiz-content-panel {
    border: 1px solid #e6e6e6;
    border-radius: 8px;
    margin: 0 auto 14px;
    max-width: 900px;
    padding: 18px 20px;
}

#screen-quiz .japanese-panel {
    background: #fff;
    border-color: #000;
}

#screen-quiz .reading-panel {
    background: #f7f7f5;
}

#screen-quiz .meaning-panel {
    background: #f8fbff;
    border-color: #c2dafa;
}

#screen-quiz .quiz-panel-label {
    display: block;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    line-height: 1.3;
    margin-bottom: 12px;
}

#screen-quiz .question,
#screen-quiz .reading {
    margin: 0;
    max-width: none;
    padding: 0;
}

#screen-quiz .japanese-panel .question {
    font-size: clamp(1.45rem, 2.6vw, 2.15rem);
}

#screen-quiz .reading-panel .reading {
    border: 0;
    opacity: 0.72;
}

#screen-quiz .meaning {
    color: #000;
    font-size: 16px;
    line-height: 1.55;
}

#screen-quiz .quiz-controls-dock .choice-btn,
#screen-quiz .quiz-controls-dock .nav-btn {
    border-radius: 7px;
}

@media (max-width: 900px) {
    #screen-quiz .card {
        width: 82vw;
    }
}

@media (max-width: 640px) {
    #screen-quiz {
        min-height: 0;
    }

    #screen-quiz .card {
        height: 70vh;
        max-height: 70vh;
        width: 100%;
    }

    #screen-quiz .quiz-content-panel {
        padding: 16px;
    }
}

/* Final visual direction for the quiz canvas */
#screen-quiz {
    height: calc(100vh - 76px);
    min-height: 0;
}

#screen-quiz .card {
    background: #fff;
    border: 1px solid #000;
    border-radius: 24px;
    box-shadow: 10px 10px 0 var(--block-lilac);
    width: 80vw;
}

#screen-quiz .japanese-panel {
    background: #fff;
    border: 0;
    height: 220px;
    overflow-y: auto;
}

#screen-quiz .japanese-panel .question {
    color: #000;
    font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Inter, sans-serif;
    font-size: clamp(1.5rem, 2.5vw, 2.1rem);
    font-weight: 500;
    letter-spacing: -0.025em;
    line-height: 1.55;
}

#screen-quiz .quiz-controls-dock .choice-btn.correct,
#screen-quiz .choice-btn.correct {
    background: var(--block-lime) !important;
    border-color: #000 !important;
    color: #000 !important;
    box-shadow: none;
}

@media (max-width: 900px) {
    #screen-quiz .card {
        width: 80vw;
    }
}

@media (max-width: 640px) {
    #screen-quiz {
        height: calc(100vh - 68px);
    }

    #screen-quiz .card {
        width: 100%;
    }

    #screen-quiz .japanese-panel {
        height: 190px;
    }
}

/* Keep the quiz centered in the actual viewport below the fixed topbar. */
#screen-quiz {
    position: fixed;
    top: 76px;
    right: 0;
    bottom: 0;
    left: 0;
    height: auto;
    min-height: 0;
    margin: 0;
    overflow: hidden;
    padding: 0 0 96px;
    width: auto;
}

#screen-quiz .card {
    margin: 0 auto;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

#screen-quiz .card::-webkit-scrollbar,
#screen-quiz .japanese-panel::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}

#screen-quiz .japanese-panel {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

@media (max-width: 640px) {
    #screen-quiz {
        top: 68px;
        padding-bottom: 132px;
    }
}

/* Responsive category grid: column count follows the viewport width. */
#screen-categories .category-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

#screen-categories .category-card,
#screen-categories .category-card:nth-child(3n + 1),
#screen-categories .category-card:nth-child(3n + 2),
#screen-categories .category-card:nth-child(3n + 3) {
    background: #fff;
    border: 1px solid #000;
    box-shadow: none;
}

#screen-categories .category-card:hover {
    background: #fff;
    border-color: #000;
    box-shadow: 6px 6px 0 #000;
    transform: translate(-2px, -2px);
}

/* Filter flow: one decision per screen. */
#screen-config .config-step {
    animation: configStepIn 0.2s ease-out;
}

@keyframes configStepIn {
    from { opacity: 0; transform: translateX(8px); }
    to { opacity: 1; transform: translateX(0); }
}

#screen-config .config-eyebrow {
    color: #000;
    display: block;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    margin-bottom: 14px;
}

#screen-config .btn-config-next {
    background: #000;
    border: 1px solid #000;
    border-radius: 7px;
    color: #fff;
    cursor: pointer;
    font-size: 1rem;
    min-height: 50px;
    padding: 12px 20px;
    width: 100%;
}

#screen-config .btn-config-next:hover {
    background: var(--block-navy);
}

#screen-config .year-list {
    display: grid;
    gap: 10px;
    margin: 28px 0;
}

#screen-config .year-option {
    align-items: center;
    background: #fff;
    border: 1px solid #e6e6e6;
    border-radius: 8px;
    color: #000;
    cursor: pointer;
    display: flex;
    gap: 14px;
    min-height: 64px;
    padding: 12px 16px;
    text-align: left;
    transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
    width: 100%;
}

#screen-config .year-option:hover {
    background: var(--surface-soft);
    border-color: #000;
    transform: translateX(3px);
}

#screen-config .year-option.selected {
    background: #e8f2ff;
    border: 2px solid #2563eb;
    padding: 11px 15px;
}

#screen-config .year-option-mark {
    align-items: center;
    background: var(--surface-soft);
    border-radius: 50%;
    display: flex;
    flex: 0 0 36px;
    font-size: 1.1rem;
    height: 36px;
    justify-content: center;
    width: 36px;
}

#screen-config .year-option span:last-child {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

#screen-config .year-option strong {
    font-size: 1rem;
    font-weight: 700;
}

#screen-config .year-option small {
    color: #000;
    font-size: 0.8rem;
    opacity: 0.62;
}

#screen-config #config-step-year .config-summary {
    margin-top: 20px;
}