/* V2 Theme Variables Integration */
:root {
    /* 학생용 라이트 토큰은 student-quiz-light.css에서 상속한다. */
    --accent: var(--primary);
    --accent-dark: var(--primary-dark);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 16px;
    font-family: 'Pretendard', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text-main);
    max-width: 800px;
    margin-inline: auto;
    transition: background 0.3s, color 0.3s;
    min-height: 100vh;
}

h1 {
    margin: 0 0 4px;
    font-size: 1.6rem;
}

.subtitle {
    font-size: 0.9rem;
    color: var(--text-sub);
    margin-bottom: 16px;
}

.card {
    background: var(--card-bg-glass);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 18px;
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
    margin-top: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.card h2 {
    margin: 0 0 8px;
    font-size: 1.1rem;
}

.card p.description {
    margin: 0 0 8px;
    font-size: 0.85rem;
    color: var(--text-sub);
}

.student-info {
    font-size: 0.9rem;
    color: var(--text-sub);
    margin-top: 4px;
}

.quiz-title {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.pill {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 999px;
    background: #e5e7eb;
    font-size: 0.75rem;
    color: #4b5563;
    gap: 4px;
}

.question-card {
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    padding: 10px 10px 8px;
    margin-bottom: 10px;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.question-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary), var(--accent));
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    margin-bottom: 4px;
    color: var(--text-sub);
    padding-left: 4px;
}

.question-text {
    font-size: 0.98rem;
    margin-bottom: 6px;
    padding-left: 4px;
}

.options-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.options-list li {
    margin-bottom: 4px;
}

.option-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    width: 100%;
    padding: 12px 18px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--hover-bg);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, transform 0.1s;
    font-size: 0.9rem;
}

.option-item input[type="radio"] {
    margin-top: 3px;
}

.option-main {
    display: flex;
    flex-direction: column;
}

.option-index {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1px;
}

.option-text {
    flex: 1;
    line-height: 1.4;
}

.option-item:hover {
    transform: translateY(-1px);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.option-color-1 {
    background: var(--primary-soft);
    opacity: 0.9;
}

.option-color-2 {
    background: var(--secondary-soft);
    opacity: 0.9;
}

.option-color-3 {
    background: var(--info-soft);
    opacity: 0.9;
}

.option-color-4 {
    background: var(--warning-soft);
    opacity: 0.9;
}

.correct-answer {
    border-color: #16a34a !important;
    background: #dcfce7 !important;
}

.wrong-answer-selected {
    border-color: #dc2626 !important;
    background: #fee2e2 !important;
}

.correct-flash {
    animation: correctFlash 0.5s ease-out;
}

@keyframes correctFlash {
    0% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6);
    }

    100% {
        box-shadow: 0 0 0 14px rgba(34, 197, 94, 0);
    }
}

.shake-wrong {
    animation: shakeWrong 0.3s ease-out;
}

@keyframes shakeWrong {
    0% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-3px);
    }

    50% {
        transform: translateX(3px);
    }

    75% {
        transform: translateX(-2px);
    }

    100% {
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.18s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

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

/* 공통 필 버튼 */
.pill-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 6px;
    margin-bottom: 4px;
}

.pill-btn {
    border-radius: 999px;
    padding: 10px 18px;
    font-size: 0.92rem;
    border: 1px solid var(--border);
    background: var(--card-bg-glass);
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s;
    backdrop-filter: blur(5px);
}

.pill-btn:hover {
    background: var(--hover-bg);
    transform: translateY(-2px);
    border-color: var(--primary-soft);
}

.pill-btn:active {
    transform: translateY(1px);
}

.pill-btn.primary {
    background: var(--primary);
    border-color: var(--primary-dark);
    color: #fff;
    font-weight: 800;
    box-shadow: 0 4px 15px var(--primary-soft);
}

.btn-row {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

button {
    border: none;
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 0.9rem;
    cursor: pointer;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px var(--primary-soft);
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--hover-bg);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: var(--border);
}

button:disabled {
    opacity: 0.5;
    cursor: default;
}

#status {
    margin-top: 8px;
    font-size: 0.9rem;
    font-weight: 600;
}

.small-muted {
    font-size: 0.8rem;
    color: var(--text-sub);
}

.result-chip {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.78rem;
    margin-left: 6px;
}

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

.result-wrong {
    background: #fee2e2;
    color: #b91c1c;
}

.result-summary-card {
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    padding: 12px 14px;
    margin-bottom: 10px;
    background: #fefce8;
}

.result-summary-main {
    font-weight: 700;
    margin-bottom: 4px;
}

.result-summary-score {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.result-summary-sub {
    font-size: 0.85rem;
    color: #4b5563;
}

.quiz-list {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.quiz-select-card {
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    padding: 10px 12px;
    background: #ffffff;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}

.quiz-select-card:hover {
    background: #fefce8;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
    transform: translateY(-1px);
}

.quiz-select-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.quiz-select-meta {
    font-size: 0.8rem;
    color: #6b7280;
}

.score-popup {
    position: fixed;
    top: 24px;
    right: 24px;
    padding: 12px 24px;
    border-radius: 99px;
    background: var(--primary);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 700;
    box-shadow: 0 8px 24px var(--primary-soft);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-20px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 9999;
}

.score-popup.show {
    opacity: 1;
    transform: translateY(0);
}

.rank-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.78);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 200;
}

.rank-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.rank-overlay-inner {
    background: var(--card-bg-glass);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    color: var(--text-main);
    padding: 30px;
    border-radius: 24px;
    width: min(400px, 92vw);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    transform: translateY(20px);
    transition: transform 0.3s;
}

.rank-overlay.show .rank-overlay-inner {
    transform: translateY(0);
}

.rank-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.rank-sub {
    font-size: 0.82rem;
    color: #e5e7eb;
    margin-bottom: 8px;
    white-space: pre-line;
}

.rank-list {
    border-radius: 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 8px 12px;
    margin-bottom: 12px;
    max-height: 220px;
    overflow-y: auto;
}

.rank-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    padding: 2px 0;
}

.rank-row.me {
    font-weight: 700;
    color: var(--primary);
}

.rank-no {
    width: 48px;
}

.rank-name {
    flex: 1;
    padding: 0 6px;
}

.rank-score {
    width: 70px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.rank-hint {
    font-size: 0.76rem;
    color: #9ca3af;
    text-align: center;
    margin-top: 4px;
}

.rank-overlay.rank-up .rank-overlay-inner {
    border: 2px solid #22c55e;
}

.rank-overlay.rank-down .rank-overlay-inner {
    border: 2px solid #ef4444;
}

.rank-my-card {
    border-radius: 16px;
    background: var(--primary);
    padding: 16px 20px;
    margin: 12px 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    box-shadow: 0 10px 20px var(--primary-soft);
    color: #fff;
}

.rank-my-card-left {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.rank-my-label {
    font-size: 0.8rem;
    color: #fefce8;
    opacity: 0.9;
}

.rank-my-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: #f9fafb;
}

.rank-my-card-right {
    text-align: right;
}

.rank-my-rank {
    font-size: 1.1rem;
    font-weight: 800;
    color: #fef9c3;
}

.rank-my-score {
    font-size: 0.8rem;
    color: #e5e7eb;
    opacity: 0.9;
}

.race-area {
    margin: 6px 0 6px;
}

.race-wrapper {
    background: var(--hover-bg);
    border-radius: 999px;
    padding: 8px 14px;
    border: 1px solid var(--border);
}

.race-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78rem;
    color: #4b5563;
    margin-bottom: 4px;
}

.race-label span:first-child {
    font-weight: 600;
}

.race-track {
    display: flex;
    align-items: center;
    gap: 6px;
}

.race-start,
.race-end {
    font-size: 1.1rem;
}

.race-bar {
    position: relative;
    flex: 1;
    height: 10px;
    border-radius: 999px;
    background: #e5e7eb;
    overflow: hidden;
}

.race-progress {
    position: absolute;
    inset: 0 auto 0 0;
    background: linear-gradient(90deg, #22c55e, #a3e635);
    width: 0%;
    transition: width 0.35s ease-out;
}

.race-pawn {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 1rem;
    pointer-events: none;
    transition: left 0.35s ease-out, transform 0.35s ease-out;
}

/* 아바타 */
.avatar-bubble {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    border: 2px solid rgba(0, 0, 0, 0.04);
    background: #f9fafb;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
    flex-shrink: 0;
}

.avatar-bubble.lg {
    width: 46px;
    height: 46px;
    font-size: 22px;
}

.student-info-box {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.92rem;
    color: #111827;
}

.student-info-box .code {
    font-size: 0.82rem;
    color: #6b7280;
}

.rank-row {
    gap: 6px;
}

.rank-row .rank-name {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* 퀴즈 TOP5 */
.quiz-top-card {
    margin-top: 16px;
    padding: 20px;
    border-radius: 20px;
    background: var(--card-bg-glass);
    backdrop-filter: blur(15px);
    color: var(--text-main);
    border: 1px solid rgba(191, 219, 254, 0.88);
    box-shadow: 0 18px 38px rgba(15, 23, 42, 0.08);
    position: relative;
    overflow: hidden;
}

.quiz-top-card::after {
    content: "";
    position: absolute;
    inset: -40px 20% auto auto;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.18), transparent 60%);
    transform: rotate(18deg);
    pointer-events: none;
}

.quiz-top-title {
    font-size: 1rem;
    font-weight: 800;
    margin: 0 0 6px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.quiz-top-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 8px;
    position: relative;
    z-index: 1;
}

.quiz-top-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(216, 225, 236, 0.96);
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
    backdrop-filter: blur(8px);
}

.quiz-top-rank {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.95rem;
    color: #0f172a;
    background: linear-gradient(135deg, #dbeafe, #93c5fd);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.25);
    flex-shrink: 0;
}

.quiz-top-item .name {
    font-weight: 700;
    color: var(--text-main);
}

.quiz-top-item .meta {
    font-size: 0.82rem;
    color: var(--text-sub);
    opacity: 0.95;
}

.quiz-top-empty {
    color: var(--text-sub);
    opacity: 0.85;
    padding: 6px 4px;
}

.quiz-context-banner {
    display: grid;
    gap: 8px;
    margin-bottom: 14px;
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--border));
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--primary-soft) 78%, transparent), rgba(255, 255, 255, 0.75)),
        radial-gradient(circle at top right, rgba(59, 130, 246, 0.16), transparent 34%);
}

.quiz-context-banner.hidden {
    display: none;
}

.quiz-context-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    font-weight: 800;
}

.quiz-context-sub {
    color: var(--text-sub);
    font-size: 0.86rem;
    line-height: 1.5;
}

.quiz-context-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.quiz-context-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 700;
    color: #92400e;
    background: rgba(255, 255, 255, 0.74);
    border: 1px solid rgba(146, 64, 14, 0.14);
}

.student-code-prompt {
    display: grid;
    gap: 10px;
}

.student-code-title {
    font-weight: 700;
    color: var(--text-main);
}

.student-code-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.student-code-actions input {
    flex: 1 1 180px;
    min-width: 0;
    border-radius: 12px;
    border: 1px solid var(--border);
    padding: 10px 12px;
    font: inherit;
    background: rgba(255, 255, 255, 0.82);
    color: var(--text-main);
}

.student-code-help {
    font-size: 0.82rem;
    color: var(--text-sub);
}

.quiz-stage-placeholder {
    color: var(--text-sub);
    font-size: 0.92rem;
}

.classic-focus-result-summary {
    margin-bottom: 16px;
}

.classic-focus-review-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.classic-focus-review-stack {
    display: grid;
    gap: 14px;
}

.boss-stage-status-mini-line + .boss-stage-status-mini-line {
    margin-top: 6px;
}