/* Modern theme — inspired by seminar quiz on :8080 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800;900&display=swap');

/* Modern theme — victorina-aligned tokens (2026-07-13)
   Brand contract distilled from /home/stasian/qwiz/dso-quiz/client/src/styles.css.
   glm-quiz extends the victorina palette with semantic aliases (--bg-*, --text-*,
   --btn-*) used across 22 pages. Do not rename or remove without grepping
   first — 900+ references depend on these aliases. */

:root {
    color-scheme: light;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
    color: var(--ink);
    background: var(--bg-primary);

    /* === victorina :root tokens (canonical) === */
    --paper: rgba(255, 255, 255, 0.86);
    --paper-strong: #fffaf2;
    --ink: #172033;
    --muted: #667085;
    --line: rgba(23, 32, 51, 0.11);
    --accent: #5c6df2;
    --accent-dark: #3647c7;
    --good: #157f55;
    --bad: #b54708;
    --shadow: 0 26px 80px rgba(73, 54, 28, 0.14);

    /* === glm-quiz extensions (semantic aliases, do not break) === */
    --shadow-soft: var(--shadow);
    --accent-blue: var(--accent);
    --bg-primary: #f6f2eb;
    --bg-secondary: var(--paper);
    --bg-tertiary: #fffaf2b8;
    --text-primary: var(--ink);
    --text-secondary: #475467;
    --text-tertiary: var(--muted);
    --accent-hover: #dde0fb;
    --success: var(--good);
    --error: var(--bad);
    --warning: var(--bad);
    --info: var(--accent);
    --border: var(--line);
    --border-secondary: rgba(23, 32, 51, 0.08);
    --surface-border: rgba(23, 32, 51, 0.14);
    --surface-muted: #f4f6fb;

    /* === Buttons — gradient primary mirrors victorina hero CTA === */
    --btn-primary-bg: linear-gradient(135deg, var(--accent), var(--accent-dark));
    --btn-primary-text: #ffffff;
    --btn-primary-shadow: 0 14px 30px rgba(54, 71, 199, 0.28);
    --btn-secondary-bg: #ffffff;
    --btn-secondary-text: #1d2939;
    --btn-secondary-border: rgba(23, 32, 51, 0.24);
    --btn-secondary-shadow: 0 8px 20px rgba(23, 32, 51, 0.08);
    --btn-ghost-bg: #f8f9fc;
    --btn-ghost-text: #344054;
    --btn-ghost-border: rgba(23, 32, 51, 0.18);
}

body {
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background:
        radial-gradient(circle at 12% 12%, rgba(92, 109, 242, 0.16), transparent 34%),
        radial-gradient(circle at 86% 18%, rgba(203, 147, 67, 0.16), transparent 28%),
        linear-gradient(145deg, #f7f3ec, #eef1f8);
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1120px;
    padding: clamp(10px, 3vw, 40px) clamp(10px, 2vw, 16px);
    justify-content: flex-start;
}

/* Hero / welcome */
.welcome-card,
.results-card,
.question-card {
    border: 1px solid var(--surface-border);
    background: var(--paper);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    border-radius: 34px;
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
}

.welcome-card::before,
.results-card::before,
.question-card::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.42), transparent 28%);
}

.welcome-card > *,
.results-card > *,
.question-card > * {
    position: relative;
}

.welcome-card {
    padding: clamp(22px, 4vw, 48px);
    text-align: left;
}

.welcome-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: clamp(24px, 4vw, 40px);
}

.eyebrow {
    color: #475467;
    font-size: 0.82rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-weight: 700;
}

.pill-badge {
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.66);
    border-radius: 999px;
    padding: 7px 14px;
    font-size: 0.88rem;
    font-weight: 700;
    color: #475467;
}

.welcome-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
    gap: clamp(24px, 5vw, 48px);
    align-items: start;
}

.welcome-title {
    font-size: clamp(2rem, 5.5vw, 3.6rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
    font-weight: 900;
    margin-bottom: 20px;
    background: none;
    -webkit-text-fill-color: var(--ink);
    color: var(--ink);
}

.welcome-subtitle {
    font-size: clamp(1.02rem, 2vw, 1.2rem);
    line-height: 1.65;
    color: #475467;
    margin-bottom: 20px;
}

.guest-notice {
    border: 1px solid rgba(92, 109, 242, 0.2);
    background: rgba(92, 109, 242, 0.08);
    color: #344054;
    border-radius: 18px;
    padding: 14px 18px;
    margin-bottom: 24px;
    font-size: 0.95rem;
    line-height: 1.55;
}

.guest-notice a {
    color: var(--accent-dark);
    font-weight: 700;
}

.side-panel {
    background: rgba(255, 250, 242, 0.72);
    border: 1px solid var(--line);
    border-radius: 28px;
    padding: clamp(20px, 3vw, 28px);
}

.side-panel h2 {
    font-size: 1.15rem;
    font-weight: 800;
    margin: 0 0 14px;
    letter-spacing: -0.02em;
}

.side-panel ul {
    margin: 0;
    padding-left: 20px;
    color: #475467;
    line-height: 1.85;
}

.user-bar {
    margin-top: 28px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--line);
    border-radius: 18px;
    justify-content: space-between;
}

.user-bar .user-name {
    color: var(--ink);
}

.welcome-footer {
    margin-top: 20px;
    color: var(--muted);
}

/* Mode & role */
.mode-pills {
    justify-content: flex-start;
    margin: 20px 0 16px;
}

.mode-pill {
    background: var(--btn-secondary-bg);
    border: 1.5px solid var(--btn-secondary-border);
    color: var(--btn-secondary-text);
    font-weight: 700;
    padding: 11px 18px;
    box-shadow: var(--btn-secondary-shadow);
}

.mode-pill:hover {
    border-color: rgba(92, 109, 242, 0.55);
    color: var(--accent-dark);
    background: #f5f7ff;
    transform: translateY(-1px);
}

.mode-pill.selected {
    background: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border-color: transparent;
    box-shadow: var(--btn-primary-shadow);
}

.role-btn {
    background: var(--btn-secondary-bg);
    border: 1.5px solid var(--btn-secondary-border);
    border-radius: 999px;
    color: var(--btn-secondary-text);
    font-weight: 650;
    box-shadow: var(--btn-secondary-shadow);
}

.role-btn:hover,
.role-btn.selected {
    border-color: rgba(92, 109, 242, 0.55);
    background: #eef0ff;
    color: var(--accent-dark);
}

.role-selection > div:first-child {
    color: var(--muted) !important;
}

/* Buttons */
.btn,
button,
.nav-btn,
.tab,
.filter-btn,
.action-btn,
.export-btn,
.quality-btn,
.rating-btn,
.a11y-btn {
    border-radius: 999px;
    font-weight: 800;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

/* Primary actions */
.btn-primary,
.btn-success,
button.btn:not(.btn-secondary):not(.btn-danger):not(.btn-warning):not(.btn-ghost),
button[type="submit"]:not(.btn-secondary):not(.btn-danger),
.tab.active,
.filter-btn.active,
.nav-btn.primary {
    color: var(--btn-primary-text) !important;
    background: var(--btn-primary-bg) !important;
    border: 1px solid transparent !important;
    box-shadow: var(--btn-primary-shadow) !important;
}

.btn-primary:hover:not(:disabled),
.btn-success:hover:not(:disabled),
button.btn:not(.btn-secondary):not(.btn-danger):not(.btn-warning):not(.btn-ghost):hover:not(:disabled),
button[type="submit"]:not(.btn-secondary):not(.btn-danger):hover:not(:disabled),
.tab.active:hover,
.filter-btn.active:hover {
    background: linear-gradient(135deg, #6b7af5, #3647c7) !important;
    transform: translateY(-1px);
    box-shadow: 0 16px 34px rgba(32, 41, 72, 0.2) !important;
}

.btn-success {
    background: linear-gradient(135deg, #12b76a, #027a48) !important;
    box-shadow: 0 14px 30px rgba(2, 122, 72, 0.24) !important;
}

/* Secondary / neutral actions */
.btn-secondary,
.btn-ghost,
a.btn:not(.btn-primary):not(.btn-success):not(.btn-danger),
.nav-btn:not(.primary),
.tab:not(.active),
.filter-btn:not(.active),
button.secondary,
.export-btn,
.finish-btn,
.nav-btn,
.tts-btn {
    color: var(--btn-secondary-text) !important;
    background: var(--btn-secondary-bg) !important;
    border: 1.5px solid var(--btn-secondary-border) !important;
    box-shadow: var(--btn-secondary-shadow) !important;
}

.btn-secondary:hover:not(:disabled),
.btn-ghost:hover:not(:disabled),
a.btn:not(.btn-primary):not(.btn-success):not(.btn-danger):hover,
.nav-btn:hover,
.tab:not(.active):hover,
.filter-btn:not(.active):hover,
button.secondary:hover,
.export-btn:hover,
.finish-btn:hover,
.tts-btn:hover {
    transform: translateY(-1px);
    background: #f5f7ff !important;
    border-color: rgba(92, 109, 242, 0.45) !important;
    color: var(--accent-dark) !important;
    box-shadow: 0 12px 28px rgba(32, 41, 72, 0.12) !important;
}

/* Danger */
.btn-danger,
.delete-btn,
.danger,
.quality-btn.again {
    color: #fff !important;
    border-color: transparent !important;
    background: linear-gradient(135deg, #d92d20, #b42318) !important;
    box-shadow: 0 14px 30px rgba(180, 35, 24, 0.24) !important;
}

.btn-warning,
.quality-btn.hard {
    color: #7a2e0e !important;
    background: #fff4e5 !important;
    border: 1.5px solid rgba(181, 71, 8, 0.35) !important;
    box-shadow: 0 8px 20px rgba(181, 71, 8, 0.12) !important;
}

.quality-btn.good {
    color: #fff !important;
    background: linear-gradient(135deg, #2e90fa, #175cd3) !important;
    border-color: transparent !important;
}

.quality-btn.easy {
    color: #fff !important;
    background: linear-gradient(135deg, #12b76a, #027a48) !important;
    border-color: transparent !important;
}

.btn-sm,
.btn-small {
    padding: 8px 14px !important;
    font-size: 0.88rem !important;
}

.welcome-cta .btn-primary {
    width: auto;
    min-width: 220px;
    max-width: none;
    padding: 15px 28px;
    font-size: 1rem;
}

/* Form fields */
.name-field {
    max-width: none;
    margin: 0 0 8px;
}

.name-field label {
    font-weight: 800;
    color: #344054;
}

.name-field input {
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid rgba(23, 32, 51, 0.14);
    border-radius: 16px;
    color: var(--ink);
    margin-top: 8px;
}

.name-field input:focus {
    border-color: rgba(92, 109, 242, 0.55);
    box-shadow: 0 0 0 4px rgba(92, 109, 242, 0.1);
}

/* Quiz */
.quiz-header {
    background: var(--paper);
    border: 1px solid rgba(255, 255, 255, 0.68);
    border-radius: 22px;
    padding: 14px 18px;
    box-shadow: 0 12px 40px rgba(73, 54, 28, 0.08);
}

.quiz-progress,
.category-badge,
.anti-cheat-indicator {
    background: var(--btn-secondary-bg);
    border: 1.5px solid var(--btn-secondary-border);
    color: var(--btn-secondary-text);
    border-radius: 999px;
    box-shadow: var(--btn-secondary-shadow);
}

.quiz-progress #current-question,
.quiz-progress #total-questions {
    color: var(--accent-dark);
}

.progress-bar {
    height: 10px;
    background: rgba(23, 32, 51, 0.08);
    border-radius: 999px;
    margin-bottom: 24px;
}

.progress-fill {
    background: linear-gradient(90deg, var(--accent-blue), #bd8cff);
    box-shadow: none;
}

.question-card {
    padding: clamp(22px, 4vw, 34px);
    border-radius: 28px;
}

.question-text {
    font-size: clamp(1.15rem, 2.4vw, 1.45rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--ink);
}

.options {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.option-btn {
    display: grid;
    grid-template-columns: 42px 1fr;
    align-items: start;
    gap: 14px;
    min-height: 88px;
    padding: 18px;
    background: var(--btn-secondary-bg);
    border: 1.5px solid var(--btn-secondary-border);
    border-radius: 22px;
    color: #263348;
    box-shadow: var(--btn-secondary-shadow);
}

.option-btn:hover:not(.disabled) {
    transform: translateY(-2px);
    border-color: rgba(92, 109, 242, 0.38);
    box-shadow: 0 14px 32px rgba(32, 41, 72, 0.09);
    background: #fff;
}

.option-letter {
    width: 34px;
    height: 34px;
    display: inline-grid;
    place-items: center;
    border-radius: 12px;
    background: #eef0ff;
    color: var(--accent-dark);
    font-weight: 900;
    flex-shrink: 0;
}

.option-btn.correct {
    border-color: rgba(21, 127, 85, 0.34);
    background: rgba(236, 253, 243, 0.82);
}

.option-btn.correct .option-letter {
    background: #d1fadf;
    color: var(--good);
}

.option-btn.wrong {
    border-color: rgba(181, 71, 8, 0.35);
    background: rgba(255, 246, 237, 0.9);
    opacity: 1;
}

.option-btn.wrong .option-letter {
    background: #ffead5;
    color: var(--bad);
}

.explanation-box {
    border-radius: 22px;
    border: 1px solid var(--line);
    border-left: none;
}

.explanation-box.correct {
    background: rgba(236, 253, 243, 0.86);
    border-color: rgba(21, 127, 85, 0.2);
}

.explanation-box.wrong {
    background: rgba(255, 246, 237, 0.9);
    border-color: rgba(181, 71, 8, 0.22);
}

/* Results */
.results-card {
    padding: clamp(28px, 5vw, 48px);
    text-align: center;
    border-radius: 34px;
}

.create-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 900;
    letter-spacing: -0.04em;
}

.results-score {
    color: var(--accent-dark);
}

.results-percentage {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    color: var(--ink);
}

.grade-badge {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-dark));
    color: #fff;
    border-radius: 999px;
    box-shadow: 0 12px 28px rgba(54, 71, 199, 0.2);
}

/* Loading */
.loading {
    background: var(--paper);
    border: 1px solid rgba(255, 255, 255, 0.68);
    border-radius: 28px;
    box-shadow: var(--shadow-soft);
    min-height: 240px;
    justify-content: center;
}

.spinner {
    border-color: rgba(23, 32, 51, 0.1);
    border-top-color: var(--accent-blue);
}

/* Modals */
.modal {
    background: var(--paper-strong);
    border: 1px solid var(--line);
    border-radius: 28px;
    box-shadow: var(--shadow-soft);
}

.modal-overlay {
    background: rgba(23, 32, 51, 0.45);
    backdrop-filter: blur(6px);
}

/* Footer */
.footer {
    color: var(--muted);
}

/* Nav links */
.nav-link {
    color: var(--accent-dark);
    font-weight: 700;
}

.nav-link:hover {
    background: #eef0ff;
    color: var(--accent-dark);
}

/* Light theme overrides — keep modern look */
body.light-theme,
body.auto-theme {
    background:
        radial-gradient(circle at 12% 12%, rgba(92, 109, 242, 0.16), transparent 34%),
        radial-gradient(circle at 86% 18%, rgba(203, 147, 67, 0.16), transparent 28%),
        linear-gradient(145deg, #f7f3ec, #eef1f8);
}

body.high-contrast {
    --bg-primary: #fff;
    --bg-secondary: #fff;
    --bg-tertiary: #f5f5f5;
    --text-primary: #000;
    --text-secondary: #222;
    --border: #000;
}

*:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

@media (max-width: 820px) {
    .welcome-grid {
        grid-template-columns: 1fr;
    }

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

    .option-btn {
        min-height: auto;
    }

    .welcome-cta .btn-primary {
        width: 100%;
    }

    .welcome-card,
    .question-card,
    .results-card {
        border-radius: 24px;
    }
}

/* Cross-page modern components */
.wrap,
.container {
    width: min(1120px, calc(100% - 24px));
    margin-left: auto;
    margin-right: auto;
}

.card,
.login-card,
.stat-card,
.metric-card,
.achievement-card,
.case-card,
.lesson-card,
.certificate-card,
.question-item,
.analytics-card,
.dashboard-card,
.table-container,
.panel,
.content-panel {
    background: var(--paper) !important;
    border: 1px solid var(--surface-border) !important;
    border-radius: 28px !important;
    box-shadow: 0 18px 54px rgba(73, 54, 28, 0.1) !important;
    color: var(--ink) !important;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.card,
.login-card,
.stat-card,
.metric-card,
.achievement-card,
.case-card,
.lesson-card,
.certificate-card,
.analytics-card,
.dashboard-card,
.panel,
.content-panel {
    padding: clamp(20px, 3vw, 32px);
}

.header,
.top-nav,
.toolbar,
.filters,
.nav-bar {
    background: rgba(255, 255, 255, 0.92) !important;
    border: 1px solid var(--surface-border) !important;
    border-radius: 22px !important;
    box-shadow: 0 12px 36px rgba(73, 54, 28, 0.08);
    padding: 14px 18px;
}

.bottom-nav {
    background: rgba(255, 255, 255, 0.96) !important;
    border: 1px solid var(--surface-border) !important;
    border-top: 1px solid var(--surface-border) !important;
    border-radius: 22px 22px 0 0 !important;
    box-shadow: 0 -10px 30px rgba(23, 32, 51, 0.1) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.nav-item {
    color: var(--muted) !important;
    border: 1px solid transparent;
    border-radius: 14px !important;
    transition: all 0.18s ease;
}

.nav-item:hover,
.nav-item.active {
    color: var(--accent-dark) !important;
    background: #eef0ff !important;
    border-color: rgba(92, 109, 242, 0.28) !important;
}

.header {
    border-bottom: 1px solid var(--line) !important;
}

h1,
h2,
h3,
.login-title,
.card-title,
.section-title,
.page-title,
.stat-value,
.metric-value,
.results-score,
.game-code,
.timer {
    color: var(--ink) !important;
    letter-spacing: -0.035em;
}

h1,
.page-title {
    font-size: clamp(2rem, 5vw, 3.8rem) !important;
    line-height: 1 !important;
    font-weight: 900 !important;
}

h2,
.card-title,
.section-title {
    font-weight: 850 !important;
}

p,
.sub,
.subtitle,
.login-subtitle,
.form-label,
.stat-label,
.metric-label,
.card-desc,
.description,
.empty-state,
.timer,
.answer-stat-label {
    color: var(--text-secondary) !important;
}

a {
    color: var(--accent-dark);
}

input,
textarea,
select,
.form-input,
.search-input,
.search-box,
.filter-select,
.code-digit {
    background: rgba(255, 255, 255, 0.78) !important;
    border: 1px solid rgba(23, 32, 51, 0.14) !important;
    border-radius: 16px !important;
    color: var(--ink) !important;
    outline: none;
    transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

input:focus,
textarea:focus,
select:focus,
.form-input:focus,
.search-input:focus,
.filter-select:focus,
.code-digit:focus {
    border-color: rgba(92, 109, 242, 0.55) !important;
    box-shadow: 0 0 0 4px rgba(92, 109, 242, 0.1) !important;
    background: #fff !important;
}

input::placeholder,
textarea::placeholder {
    color: #98a2b3 !important;
}

table {
    width: 100%;
    border-collapse: separate !important;
    border-spacing: 0 8px !important;
}

th {
    color: var(--muted) !important;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 800 !important;
}

td {
    background: rgba(255, 255, 255, 0.62);
    color: #344054 !important;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

td:first-child {
    border-left: 1px solid var(--line);
    border-radius: 16px 0 0 16px;
}

td:last-child {
    border-right: 1px solid var(--line);
    border-radius: 0 16px 16px 0;
}

pre,
code {
    background: #172033 !important;
    color: #f8fafc !important;
    border-radius: 16px;
}

.stat,
.answer-stat,
.player,
.leaderboard-item,
.achievement,
.topic-item,
.category-item,
.history-item,
.result-item,
.certificate-preview,
.offline-feature,
.feature,
.lesson-item,
.case-step,
.review-item {
    background: var(--surface-muted) !important;
    border: 1.5px solid var(--surface-border) !important;
    border-radius: 18px !important;
    color: #344054 !important;
}

.ok,
.success,
.status-ok {
    color: var(--good) !important;
}

.err,
.error,
.status-error {
    color: var(--bad) !important;
}

.version-badge,
.badge,
.status-badge,
.pill,
.tag {
    background: #fff !important;
    border: 1.5px solid var(--surface-border) !important;
    border-radius: 999px !important;
    color: #475467 !important;
}

.category-badge {
    background: #eef0ff !important;
    border: 1.5px solid rgba(92, 109, 242, 0.28) !important;
    color: var(--accent-dark) !important;
}

.game-code {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-dark)) !important;
    -webkit-background-clip: text !important;
    background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    font-weight: 900 !important;
}

.option,
.answer-option,
.quiz-option {
    background: var(--btn-secondary-bg) !important;
    border: 1.5px solid var(--btn-secondary-border) !important;
    border-radius: 22px !important;
    color: #263348 !important;
    box-shadow: var(--btn-secondary-shadow) !important;
}

.option.correct,
.answer-option.correct {
    border-color: rgba(21, 127, 85, 0.34) !important;
    background: rgba(236, 253, 243, 0.82) !important;
}

.option.wrong,
.answer-option.wrong {
    border-color: rgba(181, 71, 8, 0.35) !important;
    background: rgba(255, 246, 237, 0.9) !important;
}

.admin-panel,
.login-screen {
    color: var(--ink) !important;
}

@media (max-width: 720px) {
    .wrap,
    .container {
        width: min(100% - 20px, 1120px);
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    .header,
    .top-nav,
    .toolbar,
    .filters,
    .nav-bar {
        align-items: stretch !important;
        flex-direction: column;
    }

    table {
        border-spacing: 0 10px !important;
    }
}