/* ===== CSS Variables ===== */
:root {
    --red: #E3350D;
    --red-dark: #c42d0b;
    --red-light: #ff5a3c;
    --dark: #1a1a2e;
    --darker: #0f0f1e;
    --surface: #252542;
    --surface-light: #2e2e52;
    --text: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.65);
    --text-muted: rgba(255, 255, 255, 0.4);
    --correct: #22c55e;
    --correct-bg: rgba(34, 197, 94, 0.15);
    --wrong: #ef4444;
    --wrong-bg: rgba(239, 68, 68, 0.15);
    --border: rgba(255, 255, 255, 0.08);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --space-xs: 6px;
    --space-sm: 12px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --font: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    background: var(--darker);
    color: var(--text);
    min-height: 100dvh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ===== Loading Screen ===== */
#loading-screen {
    position: fixed;
    inset: 0;
    background: var(--darker);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-content { text-align: center; }

.loading-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--red);
    margin-bottom: 20px;
}

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--red);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

.loading-spinner.small {
    width: 24px;
    height: 24px;
    border-width: 2px;
}

.loading-text {
    font-size: 14px;
    color: var(--text-secondary);
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Landing Screen ===== */
#landing-screen {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(160deg, var(--darker) 0%, var(--dark) 50%, #2a1020 100%);
}

.landing-header {
    padding: var(--space-md) var(--space-lg);
    padding-top: env(safe-area-inset-top, var(--space-md));
}

.landing-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.header-spacer { width: 40px; }

.landing-titles { text-align: center; }

.landing-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--red);
}

.landing-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 2px;
}

.landing-date {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.header-right { width: 40px; text-align: right; }

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 22px;
    cursor: pointer;
    padding: 4px;
}

.landing-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    gap: var(--space-lg);
}

.landing-streak {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 8px 20px;
    font-size: 15px;
    font-weight: 600;
}

.streak-icon { font-size: 20px; }

/* Pokeball Hero */
.pokeball-hero {
    position: relative;
    width: 120px;
    height: 120px;
}

.pokeball-icon {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background:
        linear-gradient(180deg, var(--red) 0%, var(--red) 48%, var(--dark) 48%, var(--dark) 52%, #f0f0f0 52%, #f0f0f0 100%);
    position: relative;
    box-shadow: 0 8px 32px rgba(227, 53, 13, 0.3), inset 0 0 0 4px var(--dark);
    animation: pokeFloat 3s ease-in-out infinite;
}

.pokeball-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #f0f0f0;
    border: 4px solid var(--dark);
    box-shadow: 0 0 0 4px rgba(227, 53, 13, 0.3);
}

@keyframes pokeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.play-button {
    background: var(--red);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    padding: 16px 64px;
    font-size: 18px;
    font-weight: 700;
    font-family: var(--font);
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 4px 16px rgba(227, 53, 13, 0.4);
}

.play-button:active {
    transform: scale(0.97);
}

.landing-best {
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== Game Screen ===== */
#game-screen {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(160deg, var(--darker) 0%, var(--dark) 100%);
    padding: var(--space-sm) var(--space-md);
    padding-top: env(safe-area-inset-top, var(--space-sm));
}

.game-top-bar {
    margin-bottom: var(--space-sm);
}

.progress-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.progress-text {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    min-width: 42px;
}

.progress-bar-bg {
    flex: 1;
    height: 6px;
    background: var(--surface);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--red);
    border-radius: 3px;
    transition: width 0.4s ease;
}

.timer {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    min-width: 38px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* Pokemon Image */
.pokemon-image-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) 0;
    min-height: 0;
}

.pokemon-card {
    position: relative;
    width: 100%;
    max-width: 280px;
    aspect-ratio: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.pokemon-card.card-enter {
    animation: cardEnter 0.3s ease-out;
}

@keyframes cardEnter {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.pokemon-image {
    width: 80%;
    height: 80%;
    object-fit: contain;
    transition: opacity 0.3s ease;
    image-rendering: -webkit-optimize-contrast;
}

.image-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
}

/* Options */
.options-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: var(--space-xs) 0 var(--space-sm);
}

.option-btn {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text);
    font-family: var(--font);
    font-size: 14px;
    font-weight: 600;
    padding: 14px 8px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, transform 0.1s;
    text-align: center;
    word-break: break-word;
}

.option-btn:active:not(:disabled) {
    transform: scale(0.97);
}

.option-btn:not(:disabled):hover {
    border-color: var(--red);
    background: rgba(227, 53, 13, 0.08);
}

.option-btn.correct {
    border-color: var(--correct);
    background: var(--correct-bg);
    color: var(--correct);
}

.option-btn.wrong {
    border-color: var(--wrong);
    background: var(--wrong-bg);
    color: var(--wrong);
}

.option-btn:disabled {
    cursor: default;
    opacity: 0.7;
}

/* Feedback */
.feedback-container {
    text-align: center;
    padding: 10px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    animation: feedbackIn 0.25s ease-out;
}

.feedback-correct {
    background: var(--correct-bg);
    color: var(--correct);
}

.feedback-wrong {
    background: var(--wrong-bg);
    color: var(--wrong);
}

@keyframes feedbackIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== End Screen ===== */
.end-screen-modal {
    position: fixed;
    inset: 0;
    z-index: 500;
    background: linear-gradient(135deg, var(--red) 0%, #b91c1c 30%, var(--dark) 70%, var(--darker) 100%);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    animation: fadeIn 0.3s ease-out;
}

.end-screen-modal::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.1) 0%, transparent 60%),
                radial-gradient(circle at 80% 80%, rgba(227,53,13,0.2) 0%, transparent 50%);
    pointer-events: none;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.end-screen-content {
    position: relative;
    max-width: 480px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-md);
    padding-top: env(safe-area-inset-top, var(--space-sm));
    padding-bottom: env(safe-area-inset-bottom, var(--space-lg));
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

/* Hero */
.end-hero {
    text-align: center;
    padding: var(--space-md) 0 var(--space-xs);
}

.end-hero-title {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 6px;
}

.end-hero-score {
    font-size: 64px;
    font-weight: 800;
    color: white;
    line-height: 1;
    text-shadow: 0 2px 16px rgba(0,0,0,0.2);
    animation: scoreIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s both;
    font-variant-numeric: tabular-nums;
}

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

.end-hero-sublabel {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
    margin-top: 2px;
}

/* Stats Row */
.end-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    width: 100%;
    padding: 4px 0;
}

.end-stat {
    padding: 12px 8px;
    text-align: center;
    position: relative;
}

.end-stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 12px;
    bottom: 12px;
    width: 1px;
    background: rgba(255, 255, 255, 0.15);
}

.end-stat-value {
    font-size: 22px;
    font-weight: 800;
    color: white;
}

.end-stat-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 2px;
}

/* Ranking */
.end-ranking {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    padding: 4px 0;
}

.ranking-medal { font-size: 18px; }

/* Result Dots */
.end-result-dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 2px 0;
}

.result-dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: inline-block;
    animation: dotPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.dot-correct {
    background: rgba(110, 231, 183, 0.9);
    box-shadow: 0 0 6px rgba(110, 231, 183, 0.4);
}

.dot-wrong {
    background: rgba(252, 165, 165, 0.9);
    box-shadow: 0 0 6px rgba(252, 165, 165, 0.4);
}

@keyframes dotPop {
    0% { opacity: 0; transform: scale(0); }
    100% { opacity: 1; transform: scale(1); }
}

/* Buttons */
.end-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: var(--space-xs) 0;
}

.end-btn {
    display: block;
    width: 100%;
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.08);
    color: white;
    font-family: var(--font);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s;
}

.end-btn:hover { background: rgba(255, 255, 255, 0.12); }

.end-btn-primary {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.25);
}

/* Question Details */
.end-detail-section {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-xs);
}

.end-detail-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.15s;
}

.end-detail-toggle:hover { color: rgba(255, 255, 255, 0.8); }

.detail-chevron {
    font-size: 10px;
    transition: transform 0.3s ease;
}

.detail-chevron.open { transform: rotate(180deg); }

.end-detail-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.end-detail-body.open {
    max-height: 2000px;
    overflow-y: auto;
}

/* Answer Rows */
.answer-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    background: rgba(255, 255, 255, 0.04);
}

.answer-thumb {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
}

.answer-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.answer-name {
    font-size: 14px;
    font-weight: 600;
}

.answer-yours {
    font-size: 11px;
    color: rgba(252, 165, 165, 0.9);
}

.answer-mark {
    font-size: 18px;
    font-weight: 700;
}

.answer-correct .answer-mark { color: var(--correct); }
.answer-wrong .answer-mark { color: var(--wrong); }

/* ===== Game Chooser ===== */
.game-chooser {
    position: fixed;
    inset: 0;
    z-index: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.game-chooser-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.game-chooser-content {
    position: relative;
    background: #ffffff;
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    width: 100%;
    max-width: 340px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.game-chooser-content h2 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--space-md);
    text-align: center;
    color: #0f172a;
}

.game-chooser-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    text-decoration: none;
    color: #0f172a;
    transition: background 0.15s;
}

.game-chooser-item:hover { background: #f1f5f9; }
.game-chooser-icon { font-size: 24px; }
.game-chooser-info { display: flex; flex-direction: column; }
.game-chooser-name { font-weight: 700; font-size: 14px; }
.game-chooser-desc { font-size: 12px; color: #64748b; }

.game-chooser-close {
    display: block;
    width: 100%;
    margin-top: var(--space-sm);
    padding: 12px;
    background: none;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-family: var(--font);
    font-size: 14px;
    font-weight: 600;
    color: #64748b;
    cursor: pointer;
}

/* ===== Side Menu ===== */
.side-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 899;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.side-menu-overlay:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.side-menu {
    position: fixed;
    top: 0;
    right: -280px;
    bottom: 0;
    width: 280px;
    background: var(--dark);
    z-index: 900;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
    border-left: 1px solid var(--border);
}

.side-menu.open { right: 0; }

.side-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-md);
    padding-top: env(safe-area-inset-top, var(--space-md));
    border-bottom: 1px solid var(--border);
}

.side-menu-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--red);
}

.side-menu-nav {
    padding: var(--space-md);
    flex: 1;
}

.menu-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px var(--space-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.15s ease;
}

.menu-link:hover { background: rgba(255, 255, 255, 0.06); }
.menu-icon { font-size: 18px; width: 24px; text-align: center; }

.menu-divider {
    height: 1px;
    background: var(--border);
    margin: var(--space-xs) var(--space-md);
}

.side-menu-footer {
    padding: var(--space-md);
    border-top: 1px solid var(--border);
}

.menu-credit {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

/* ===== Stats Modal ===== */
.stats-modal {
    position: fixed;
    inset: 0;
    z-index: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stats-modal.open { opacity: 1; }

.stats-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.stats-modal-content {
    position: relative;
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    width: 100%;
    max-width: 380px;
    max-height: 80vh;
    overflow-y: auto;
}

.stats-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.stats-modal-header h2 {
    font-size: 20px;
    font-weight: 700;
}

.stats-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: var(--space-md);
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 4px;
    text-align: center;
}

.stat-card-value {
    font-size: 18px;
    font-weight: 800;
    color: var(--red);
}

.stat-card-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.stats-section {
    margin-top: var(--space-md);
}

.stats-section h3 {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.stat-bars {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 80px;
    padding: 0 4px;
}

.stat-bar-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    justify-content: flex-end;
}

.stat-bar {
    width: 100%;
    background: var(--red);
    border-radius: 3px 3px 0 0;
    min-height: 4px;
    opacity: 0.8;
}

.stat-bar-label {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
    font-weight: 600;
}

.stat-game-row {
    display: flex;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}

.stat-game-date {
    flex: 1;
    color: var(--text-secondary);
}

.stat-game-score {
    font-weight: 700;
    margin-right: 12px;
}

.stat-game-time {
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

/* ===== Group Leaderboards on End Screen ===== */
.end-group-leaderboards {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 16px;
}

.end-group-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    overflow: hidden;
}

.end-group-header {
    font-size: 13px;
    font-weight: 600;
    padding: 10px 12px 4px;
    color: var(--text);
}

.end-group-table {
    width: 100%;
    border-collapse: collapse;
}

.end-group-table th {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-muted);
    padding: 4px 12px;
    text-align: left;
}

.end-group-table th:first-child { width: 32px; text-align: center; }

.end-group-table td {
    padding: 4px 12px;
    font-size: 12px;
    color: var(--text-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.end-group-table td:first-child {
    width: 32px;
    text-align: center;
    font-weight: 600;
    color: var(--text-muted);
}

.end-group-table td:last-child {
    text-align: right;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.end-group-table tr.leaderboard-me {
    background: rgba(227, 53, 13, 0.15);
}

.end-group-table tr.leaderboard-me td {
    color: var(--red-light);
    font-weight: 600;
}

.end-group-empty {
    font-size: 12px;
    color: var(--text-muted);
    padding: 10px 12px;
    text-align: center;
}