@charset "UTF-8";

:root {
    --bg-cream: #fbf4de;
    --bg-soft: #fffdf6;
    --ink: #14324a;
    --ink-muted: #486174;
    --brand-blue: #0b5ea8;
    --brand-blue-deep: #083a66;
    --brand-gold: #f6be00;
    --brand-coral: #ef6a4b;
    --surface: rgba(255, 255, 255, 0.84);
    --surface-strong: #ffffff;
    --border: rgba(20, 50, 74, 0.12);
    --shadow: 0 18px 40px rgba(11, 52, 89, 0.16);
    --success: #2f8f4e;
    --success-soft: rgba(47, 143, 78, 0.12);
    --danger: #d74d39;
    --danger-soft: rgba(215, 77, 57, 0.12);
    --warning-soft: rgba(246, 190, 0, 0.18);
}

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    min-height: 100dvh;
    font-family: "Trebuchet MS", "Gill Sans", "Segoe UI", sans-serif;
    color: var(--ink);
    overflow-x: hidden;
    background:
        radial-gradient(circle at top left, rgba(246, 190, 0, 0.28), transparent 30%),
        radial-gradient(circle at top right, rgba(11, 94, 168, 0.18), transparent 24%),
        linear-gradient(180deg, #fff9e7 0%, #f8f0d8 42%, #fdfdf9 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(120deg, transparent 0 46%, rgba(11, 94, 168, 0.05) 46% 49%, transparent 49% 100%),
        linear-gradient(300deg, transparent 0 52%, rgba(239, 106, 75, 0.05) 52% 55%, transparent 55% 100%);
    opacity: 0.7;
}

.app-shell {
    position: relative;
    z-index: 1;
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 48px;
}

.hero,
.view,
.panel,
.mode-card {
    backdrop-filter: blur(10px);
}

.hero,
.view {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 28px clamp(22px, 4vw, 40px);
    margin-bottom: 20px;
}

.hero::after {
    content: "";
    position: absolute;
    width: 220px;
    height: 220px;
    right: -50px;
    top: -60px;
    border-radius: 28px;
    transform: rotate(18deg);
    background: linear-gradient(145deg, rgba(11, 94, 168, 0.18), rgba(246, 190, 0, 0.34));
}

.eyebrow,
.section-kicker,
.mode-card__tag,
.challenge-popup__progress {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--brand-blue);
}

.hero h1,
.section-heading h2,
.mode-card h3,
.challenge-popup__question {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    line-height: 1.05;
}

.hero h1 {
    max-width: 10ch;
    font-size: clamp(2.5rem, 5vw, 4.8rem);
}

.hero-copy {
    position: relative;
    z-index: 1;
    max-width: 62ch;
    margin: 14px 0 0;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--ink-muted);
}

.hero-toolbar {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-top: 20px;
}

.status-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid rgba(20, 50, 74, 0.1);
    background: rgba(255, 255, 255, 0.84);
    box-shadow: 0 10px 24px rgba(11, 52, 89, 0.08);
    font-size: 0.92rem;
    color: var(--ink);
}

.status-pill__icon {
    display: inline-flex;
    width: 12px;
    height: 12px;
    border-radius: 999px;
    flex: 0 0 12px;
    background: rgba(72, 97, 116, 0.34);
    box-shadow: 0 0 0 4px rgba(72, 97, 116, 0.12);
}

.status-pill--success .status-pill__icon {
    background: var(--success);
    box-shadow: 0 0 0 4px rgba(47, 143, 78, 0.14);
}

.status-pill--warning .status-pill__icon {
    background: #d28a00;
    box-shadow: 0 0 0 4px rgba(246, 190, 0, 0.2);
}

.status-pill--pending .status-pill__icon {
    background: var(--brand-blue);
    box-shadow: 0 0 0 4px rgba(11, 94, 168, 0.14);
}

.status-pill--danger .status-pill__icon {
    background: var(--danger);
    box-shadow: 0 0 0 4px rgba(215, 77, 57, 0.14);
}

.hero-actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin-top: 20px;
}

.hero-toolbar .hero-actions {
    margin-top: 0;
}

.hero-actions__hint {
    margin: 0;
    font-size: 0.94rem;
    line-height: 1.5;
    color: var(--ink-muted);
}

.update-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.update-banner__body {
    display: grid;
    gap: 4px;
}

.update-banner__body strong {
    font-size: 1rem;
    color: var(--ink);
}

.update-banner__body p {
    margin: 0;
    color: var(--ink-muted);
}

.update-banner__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.view {
    display: none;
    padding: clamp(22px, 4vw, 34px);
}

.view--active {
    display: block;
    animation: fade-up 260ms ease;
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.section-heading h2 {
    font-size: clamp(1.9rem, 3vw, 2.7rem);
}

.mode-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.mode-card,
.panel {
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid var(--border);
    border-radius: 24px;
    box-shadow: 0 16px 36px rgba(11, 52, 89, 0.08);
}

.mode-card {
    display: grid;
    gap: 14px;
    align-content: start;
    padding: 24px;
}

.mode-card--accent {
    background:
        linear-gradient(160deg, rgba(246, 190, 0, 0.18), rgba(255, 255, 255, 0.82) 48%),
        rgba(255, 255, 255, 0.86);
}

.mode-card p:not(.mode-card__tag) {
    margin: 0;
    color: var(--ink-muted);
    line-height: 1.65;
}

.panel {
    padding: 18px;
    margin-bottom: 18px;
}

.panel--status {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
    gap: 14px;
    align-items: center;
}

.status-chip {
    border-radius: 18px;
    padding: 14px 16px;
    background: var(--bg-soft);
    border: 1px solid rgba(20, 50, 74, 0.08);
}

.status-chip span {
    display: block;
    font-size: 0.85rem;
    color: var(--ink-muted);
}

.status-chip strong {
    display: block;
    margin-top: 6px;
    font-size: 1.2rem;
}

.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font: inherit;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    min-height: 48px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease, color 160ms ease, opacity 160ms ease;
}

button:hover {
    transform: translateY(-1px);
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.68;
    transform: none;
}

.primary-button,
.secondary-button,
.ghost-button,
.quiz-option {
    padding: 12px 18px;
}

.primary-button {
    background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-deep));
    color: #ffffff;
    box-shadow: 0 10px 22px rgba(11, 94, 168, 0.24);
}

.secondary-button {
    background: linear-gradient(135deg, #ffd452, var(--brand-gold));
    color: var(--ink);
}

.ghost-button {
    background: transparent;
    color: var(--brand-blue);
    border: 1px solid rgba(11, 94, 168, 0.24);
}

.notice {
    border-radius: 20px;
    padding: 16px 18px;
    margin-bottom: 18px;
    line-height: 1.6;
    border: 1px solid transparent;
    overflow-wrap: anywhere;
}

.notice--neutral {
    background: rgba(255, 255, 255, 0.82);
    border-color: rgba(20, 50, 74, 0.09);
}

.notice--success {
    background: var(--success-soft);
    border-color: rgba(47, 143, 78, 0.2);
}

.notice--danger {
    background: var(--danger-soft);
    border-color: rgba(215, 77, 57, 0.2);
}

.notice--warning {
    background: var(--warning-soft);
    border-color: rgba(246, 190, 0, 0.28);
}

.board {
    display: grid;
    gap: 14px;
}

.board--memory {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    width: min(100%, 1080px);
    margin: 0 auto;
}

.board--challenge {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: min(100%, 540px);
    margin: 0 auto;
}

.board-shell {
    position: relative;
    width: min(100%, 700px);
    margin: 0 auto;
    padding: 10px;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(20, 50, 74, 0.08);
    box-shadow: 0 16px 32px rgba(11, 52, 89, 0.08);
}

.board.is-locked {
    pointer-events: none;
}

.is-hidden {
    display: none !important;
}

.game-card {
    position: relative;
    display: block;
    width: 100%;
    border: none;
    border-radius: 24px;
    padding: 0;
    background: transparent;
    perspective: 1400px;
    aspect-ratio: 1 / 1;
    transition: none;
}

.game-card:hover {
    transform: none;
}

.game-card__inner {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 24px;
    transform-style: preserve-3d;
    transition: transform 640ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.game-card.is-flipped .game-card__inner {
    transform: rotateY(180deg);
}

.game-card.is-hidden {
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s 0.6s, opacity 0.6s;
}

.game-card.is-matched {
    pointer-events: none;
}

.game-card.is-matched .game-card__face--front {
    opacity: 0.6;
    filter: grayscale(100%) brightness(1.1);
}

.game-card__face {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 24px;
    backface-visibility: hidden;
    overflow: hidden;
}

.game-card__face--back {
    padding: 14px;
    background:
        radial-gradient(circle at top, rgba(255, 255, 255, 0.24), transparent 40%),
        linear-gradient(145deg, rgba(8, 58, 102, 0.98), rgba(11, 94, 168, 0.94)),
        linear-gradient(180deg, rgba(246, 190, 0, 0.3), transparent);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.game-card__face--back::before,
.game-card__face--back::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
}

.game-card__face--back::before {
    width: 68px;
    height: 68px;
    top: 12px;
    right: -16px;
}

.game-card__face--back::after {
    width: 88px;
    height: 88px;
    bottom: -28px;
    left: -22px;
}

.game-card__brand {
    position: relative;
    z-index: 1;
    display: grid;
    justify-items: center;
    gap: 10px;
}

.game-card__back-logo {
    width: min(76%, 150px);
    max-height: 72%;
    object-fit: contain;
    filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.2));
}

.game-card__back-fallback {
    color: #ffffff;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-align: center;
}

.game-card__face--front {
    transform: rotateY(180deg);
    background: #ffffff;
    border: 1px solid rgba(20, 50, 74, 0.1);
    box-shadow: 0 16px 32px rgba(11, 52, 89, 0.1);
}

.memory-face--image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.memory-face--text span {
    padding: 14px;
    font-size: 0.875rem;
    line-height: 1.4;
    text-align: center;
    word-wrap: break-word;
}

.memory-face--text,
.word-face,
.trivia-face {
    width: 100%;
    height: 100%;
    padding: 16px;
    text-align: center;
}

.memory-face--text {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, rgba(246, 190, 0, 0.14), rgba(255, 255, 255, 0.94));
    font-weight: 700;
    line-height: 1.35;
}

.memory-face--text span {
    display: block;
    font-size: 0.95rem;
}

.game-card.is-matched .game-card__face--front {
    box-shadow: 0 18px 38px rgba(47, 143, 78, 0.22);
}

.word-face {
    display: grid;
    gap: 8px;
    align-content: center;
    background:
        linear-gradient(180deg, rgba(246, 190, 0, 0.18), rgba(255, 255, 255, 0.94)),
        #ffffff;
}

.word-face__tag {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.7rem;
    color: var(--brand-blue);
    font-weight: 700;
}

.word-face__label {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(1.35rem, 3vw, 1.9rem);
}

.trivia-face {
    display: grid;
    gap: 10px;
    align-content: center;
    background:
        radial-gradient(circle at top, rgba(239, 106, 75, 0.16), transparent 36%),
        #ffffff;
}

.trivia-face__badge {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 48px;
    height: 48px;
    margin: 0 auto;
    border-radius: 999px;
    background: rgba(11, 94, 168, 0.1);
    color: var(--brand-blue);
    font-weight: 700;
}

.trivia-face__title {
    display: inline-block;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.25rem;
}

.trivia-face__meta {
    margin: 0;
    font-size: 0.82rem;
    color: var(--ink-muted);
}

.challenge-overlay {
    position: absolute;
    inset: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    border-radius: 24px;
    background: rgba(20, 50, 74, 0.24);
    backdrop-filter: blur(6px);
}

.challenge-popup {
    width: min(100%, 560px);
    max-height: 100%;
    overflow: auto;
    border-radius: 24px;
    padding: 22px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(20, 50, 74, 0.12);
    box-shadow: 0 18px 36px rgba(11, 52, 89, 0.18);
}

.challenge-popup--result {
    text-align: center;
}

.challenge-popup__title {
    margin: 0 0 8px;
    font-weight: 700;
    color: var(--brand-blue);
}

.challenge-popup__question {
    margin: 10px 0 18px;
    font-size: 1.4rem;
}

.challenge-popup__text {
    margin: 12px 0 0;
    color: var(--ink-muted);
    line-height: 1.65;
}

.challenge-popup__actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 18px;
}

.quiz-options {
    display: grid;
    gap: 12px;
}

.quiz-option {
    text-align: left;
    border-radius: 18px;
    border: 1px solid rgba(20, 50, 74, 0.12);
    background: #ffffff;
    color: var(--ink);
}

.quiz-option:hover {
    box-shadow: 0 10px 24px rgba(11, 52, 89, 0.08);
}

.quiz-option.is-correct,
.quiz-option.is-revealed {
    background: rgba(47, 143, 78, 0.12);
    border-color: rgba(47, 143, 78, 0.28);
    color: #205f35;
}

.quiz-option.is-wrong {
    background: rgba(215, 77, 57, 0.12);
    border-color: rgba(215, 77, 57, 0.3);
    color: #962f21;
}

/* Trivia Module Styles */
.trivia-face {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ff8c42 0%, #ff6b6b 100%);
    color: #ffffff;
    font-weight: bold;
    text-align: center;
    padding: 12px;
}

.trivia-face__label {
    font-size: 1rem;
}

.trivia-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--surface-strong);
    border-radius: 24px;
    padding: 32px 28px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 1000;
    animation: fade-up 0.4s ease-out;
}

.trivia-progress {
    font-size: 0.875rem;
    color: var(--ink-muted);
    margin-bottom: 16px;
    text-align: center;
    font-weight: 500;
}

.trivia-question {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 24px;
    line-height: 1.5;
}

.trivia-options {
    display: grid;
    gap: 12px;
    margin-bottom: 24px;
}

.trivia-option {
    display: block;
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
    color: var(--ink);
    text-align: left;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.trivia-option:hover:not(:disabled) {
    border-color: var(--brand-blue);
    background: rgba(11, 94, 168, 0.08);
}

.trivia-option:disabled {
    cursor: default;
}

.trivia-option--correct {
    border-color: var(--success);
    background: var(--success-soft);
    color: #205f35;
    font-weight: 600;
}

.trivia-option--incorrect {
    border-color: var(--danger);
    background: var(--danger-soft);
    color: #7d2f1f;
}

.trivia-reference {
    background: var(--warning-soft);
    border-left: 4px solid var(--brand-gold);
    border-radius: 8px;
    padding: 16px;
    margin-top: 16px;
}

.trivia-reference strong {
    display: block;
    color: var(--ink);
    font-weight: 700;
    margin-bottom: 8px;
}

.trivia-reference p {
    margin: 0 0 8px 0;
    color: var(--ink-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.trivia-source {
    font-size: 0.85rem;
    font-style: italic;
    color: var(--brand-blue) !important;
    margin-top: 8px !important;
    white-space: pre-line;
    overflow-wrap: anywhere;
}

.trivia-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 16px;
}

.quiz-answer-feedback {
    min-height: 24px;
    margin: 14px 0 0;
    font-weight: 700;
}

.quiz-meta {
    display: grid;
    gap: 12px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid rgba(20, 50, 74, 0.09);
}

.quiz-meta__block {
    padding: 14px 16px;
    border-radius: 18px;
    background: linear-gradient(160deg, rgba(246, 190, 0, 0.12), rgba(255, 255, 255, 0.92));
    border: 1px solid rgba(20, 50, 74, 0.08);
}

.quiz-meta__label {
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--brand-blue);
}

.quiz-meta__stack {
    display: grid;
    gap: 10px;
}

.quiz-meta__text {
    margin: 0;
    color: var(--ink-muted);
    line-height: 1.6;
    font-size: 0.94rem;
}

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 980px) {
    .app-shell {
        width: min(100% - 24px, 100%);
        padding-top: 24px;
        padding-bottom: 32px;
    }

    .mode-grid,
    .panel--status {
        grid-template-columns: 1fr;
    }

    .panel--status {
        align-items: stretch;
    }

    .action-row {
        justify-content: flex-start;
    }

    .board--memory {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 12px;
    }
}

@media (max-width: 640px) {
    .app-shell {
        width: min(100% - 16px, 100%);
        padding-top: max(14px, env(safe-area-inset-top));
        padding-bottom: max(22px, env(safe-area-inset-bottom));
    }

    .hero,
    .view {
        border-radius: 24px;
    }

    .hero {
        padding: 22px 18px;
    }

    .hero::after {
        width: 160px;
        height: 160px;
        right: -34px;
        top: -38px;
    }

    .hero h1 {
        max-width: none;
        font-size: clamp(2.2rem, 11vw, 3.4rem);
    }

    .hero-copy {
        font-size: 0.98rem;
        line-height: 1.6;
    }

    .hero-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .status-pills {
        width: 100%;
        flex-direction: column;
    }

    .status-pill {
        width: 100%;
        justify-content: flex-start;
    }

    .hero-actions {
        width: 100%;
        margin-top: 0;
    }

    .hero-actions > button {
        width: 100%;
    }

    .view {
        padding: 18px 16px 20px;
    }

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
        margin-bottom: 18px;
    }

    .section-heading > * {
        width: 100%;
    }

    .section-heading .ghost-button {
        width: 100%;
    }

    .mode-card,
    .panel {
        border-radius: 20px;
    }

    .mode-card {
        padding: 20px 18px;
    }

    .panel {
        padding: 16px;
    }

    .status-chip {
        padding: 12px 14px;
    }

    .status-chip strong {
        font-size: 1.1rem;
    }

    .action-row {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .action-row > button {
        width: 100%;
    }

    .board--memory {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 8px;
    }

    .board--challenge {
        width: 100%;
        gap: 8px;
    }

    .game-card,
    .game-card__inner,
    .game-card__face {
        border-radius: 18px;
    }

    .game-card__face--back {
        padding: 10px;
    }

    .game-card__back-logo {
        width: min(70%, 108px);
    }

    .memory-face--text,
    .word-face,
    .trivia-face {
        padding: 10px;
    }

    .memory-face--text span {
        font-size: 0.8rem;
        line-height: 1.25;
    }

    .word-face__label {
        font-size: clamp(1rem, 6vw, 1.4rem);
    }

    .trivia-face__label {
        font-size: 0.9rem;
        line-height: 1.2;
    }

    .notice {
        padding: 14px 15px;
        font-size: 0.95rem;
    }

    .update-banner {
        flex-direction: column;
        align-items: stretch;
    }

    .update-banner__actions {
        width: 100%;
    }

    .update-banner__actions > button {
        width: 100%;
    }

    .challenge-overlay {
        inset: 6px;
        padding: 10px;
    }

    .challenge-popup__question {
        font-size: 1.22rem;
    }

    .trivia-container {
        top: auto;
        left: 8px;
        right: 8px;
        bottom: 8px;
        transform: none;
        width: auto;
        max-width: none;
        max-height: calc(100dvh - 16px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
        border-radius: 20px;
        padding: 20px 16px max(18px, env(safe-area-inset-bottom));
    }

    .trivia-progress {
        margin-bottom: 12px;
    }

    .trivia-question {
        font-size: 1rem;
        margin-bottom: 18px;
    }

    .trivia-options {
        gap: 10px;
        margin-bottom: 18px;
    }

    .trivia-option {
        min-height: 52px;
        padding: 14px;
        font-size: 0.95rem;
    }

    .trivia-reference {
        padding: 14px;
    }

    .trivia-actions {
        justify-content: stretch;
    }

    .trivia-actions .primary-button {
        width: 100%;
    }
}

@media (max-width: 420px) {
    .app-shell {
        width: min(100% - 12px, 100%);
    }

    .hero,
    .view {
        border-radius: 20px;
    }

    .eyebrow,
    .section-kicker,
    .mode-card__tag,
    .challenge-popup__progress {
        font-size: 0.68rem;
        letter-spacing: 0.1em;
    }

    .hero {
        padding: 20px 16px;
    }

    .section-heading h2 {
        font-size: clamp(1.55rem, 8vw, 2rem);
    }

    .primary-button,
    .secondary-button,
    .ghost-button,
    .quiz-option {
        padding: 12px 16px;
    }

    .board--memory,
    .board--challenge {
        gap: 7px;
    }

    .memory-face--text span {
        font-size: 0.74rem;
    }

    .trivia-face__label {
        font-size: 0.8rem;
    }
}

@media (hover: none) {
    button:hover,
    .quiz-option:hover,
    .trivia-option:hover:not(:disabled) {
        transform: none;
        box-shadow: none;
    }
}