/* Typerace — Mint Green */
:root {
    --tr-accent: #34D399;
    --tr-accent-light: #6EE7B7;
    --tr-accent-dark: #047857;
    --tr-bg: #061612;
    --tr-surface: #0E2722;
    --tr-surface-light: #14342E;
    --tr-text: #E6F7F0;
    --tr-text-dim: #88B6A6;
    --tr-correct: #34D399;
    --tr-wrong: #F87171;
    --tr-cursor: #FACC15;
    --tr-gold: #FACC15;
}

.tr-layout { display: flex; justify-content: center; gap: 20px; max-width: 1200px; margin: 0 auto; padding: 20px; min-height: calc(100vh - 80px); }
.ad-slot { width: 160px; flex-shrink: 0; }
.ad-slot--left, .ad-slot--right { display: flex; align-items: flex-start; }
.ad-placeholder--vertical { width: 160px; height: 600px; background: var(--tr-surface); border: 1px dashed var(--tr-text-dim); display: flex; align-items: center; justify-content: center; color: var(--tr-text-dim); font-size: 12px; border-radius: 8px; }

#typerace-app { flex: 1; max-width: 760px; min-width: 320px; color: var(--tr-text); }

.screen { display: none; }
.screen.active { display: block; animation: trFade 0.3s ease; }
@keyframes trFade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.tr-header { text-align: center; padding: 36px 0 24px; }
.tr-logo {
    display: inline-flex; align-items: center; justify-content: center;
    width: 96px; height: 56px; border-radius: 12px;
    background: var(--tr-surface);
    border: 2px solid var(--tr-accent);
    font-family: 'JetBrains Mono', monospace;
    color: var(--tr-accent-light); font-size: 1.5rem; font-weight: 700;
    margin-bottom: 14px;
    box-shadow: 0 0 24px rgba(52,211,153,0.4);
    letter-spacing: 2px;
}
.tr-header h1 { font-family: 'Syne', sans-serif; font-size: 2.4rem; font-weight: 800; color: var(--tr-accent-light); letter-spacing: 6px; margin: 0; text-shadow: 0 0 24px rgba(52,211,153,0.5); }
.subtitle { color: var(--tr-text-dim); font-size: 1rem; margin-top: 8px; }

.card { background: var(--tr-surface); border-radius: 14px; padding: 20px; margin-bottom: 16px; border: 1px solid var(--tr-surface-light); }
.card__title { font-family: 'Syne', sans-serif; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 2px; color: var(--tr-accent-light); margin-bottom: 14px; }

.diff-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.diff-grid .lang ~ .lang { } /* noop */
.card:nth-child(2) .diff-grid { grid-template-columns: repeat(2, 1fr); }
.diff-btn { background: var(--tr-surface-light); border: 1.5px solid transparent; color: var(--tr-text); padding: 14px 8px; border-radius: 10px; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 4px; font-family: 'DM Sans', sans-serif; font-size: 0.85rem; transition: transform 0.12s ease, border-color 0.12s ease; }
.diff-btn:hover { transform: translateY(-2px); border-color: var(--tr-accent); }
.diff-btn.selected { background: linear-gradient(135deg, var(--tr-accent-dark), var(--tr-accent)); border-color: var(--tr-accent-light); }
.diff-icon { font-family: 'JetBrains Mono', monospace; font-size: 1rem; font-weight: 700; color: var(--tr-accent-light); }
.diff-btn.selected .diff-icon { color: #fff; }
.diff-desc { font-size: 0.72rem; color: var(--tr-text-dim); }

.tr-rules { margin: 0; padding-left: 1.1rem; color: var(--tr-text-dim); font-size: 0.92rem; line-height: 1.6; }
.tr-rules li + li { margin-top: 6px; }

.btn { font-family: 'DM Sans', sans-serif; font-weight: 600; border-radius: 10px; border: none; cursor: pointer; padding: 12px 22px; transition: transform 0.12s ease, box-shadow 0.12s ease; font-size: 0.95rem; }
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: linear-gradient(135deg, var(--tr-accent-dark), var(--tr-accent)); color: #fff; box-shadow: 0 6px 18px rgba(52,211,153,0.35); }
.btn--outline { background: transparent; border: 1.5px solid var(--tr-accent); color: var(--tr-accent-light); }
.btn--outline:hover { background: rgba(52,211,153,0.12); }
.btn--ghost { background: transparent; color: var(--tr-text-dim); }
.btn--ghost:hover { color: var(--tr-accent-light); }
.btn--lg { padding: 16px 36px; font-size: 1.05rem; }
.btn--sm { padding: 8px 14px; font-size: 0.85rem; }
.menu-actions { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-top: 18px; }

#game-hud { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; background: var(--tr-surface); padding: 14px; border-radius: 12px; border: 1px solid var(--tr-surface-light); margin-bottom: 18px; }
.hud__cell { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.hud__label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--tr-text-dim); }
.hud__value { font-family: 'JetBrains Mono', monospace; font-size: 1.4rem; font-weight: 700; color: var(--tr-accent-light); }
.hud__timer { color: var(--tr-cursor); }

.tr-text-window {
    background: var(--tr-surface);
    border: 1px solid var(--tr-surface-light);
    border-radius: 14px;
    padding: 24px;
    max-height: 200px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 0 24px rgba(0,0,0,0.4);
}
.tr-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.3rem;
    line-height: 1.9;
    color: var(--tr-text-dim);
    transition: transform 0.18s ease;
    user-select: none;
}
.tr-text .ch { transition: color 0.1s ease, background 0.1s ease; }
.tr-text .ch.correct { color: var(--tr-correct); }
.tr-text .ch.wrong { color: var(--tr-wrong); background: rgba(248,113,113,0.18); border-radius: 3px; }
.tr-text .ch.cursor {
    background: rgba(250,204,21,0.25);
    border-radius: 3px;
    box-shadow: 0 0 0 1px rgba(250,204,21,0.5);
}
.tr-text .ch.cursor.wrong { background: rgba(248,113,113,0.35); }

.tr-input {
    width: 100%;
    padding: 16px 18px;
    background: var(--tr-surface);
    border: 1.5px solid var(--tr-surface-light);
    border-radius: 12px;
    color: var(--tr-accent-light);
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.05rem;
    margin-top: 14px;
    box-sizing: border-box;
    transition: border-color 0.15s ease;
}
.tr-input:focus { outline: none; border-color: var(--tr-accent); box-shadow: 0 0 0 3px rgba(52,211,153,0.18); }

.tr-actions { display: flex; justify-content: center; gap: 10px; margin-top: 16px; }

.result-card, .lb-card { background: var(--tr-surface); border-radius: 16px; padding: 36px 28px; border: 1px solid var(--tr-surface-light); text-align: center; max-width: 480px; margin: 40px auto; box-shadow: 0 18px 36px rgba(0,0,0,0.4); }
.result-card h2 { font-family: 'Syne', sans-serif; font-size: 2rem; color: var(--tr-accent-light); letter-spacing: 4px; margin: 0 0 12px; }
.result-score { font-family: 'JetBrains Mono', monospace; font-size: 3rem; font-weight: 700; color: var(--tr-gold); margin: 8px 0; }
.result-detail { color: var(--tr-text-dim); font-size: 0.95rem; margin-bottom: 18px; line-height: 1.6; }
#nickname { width: 100%; padding: 12px 14px; border-radius: 10px; background: var(--tr-bg); color: var(--tr-text); border: 1.5px solid var(--tr-surface-light); font-family: 'DM Sans', sans-serif; font-size: 0.95rem; margin-bottom: 12px; box-sizing: border-box; }
#nickname:focus { outline: none; border-color: var(--tr-accent); }
.result-actions { display: flex; gap: 10px; justify-content: center; margin-bottom: 10px; }

.lb-card h2 { font-family: 'Syne', sans-serif; color: var(--tr-accent-light); letter-spacing: 4px; margin-bottom: 18px; }
#leaderboard-list { list-style: none; padding: 0; margin: 0 0 16px; text-align: left; counter-reset: lb; }
#leaderboard-list li { counter-increment: lb; display: flex; justify-content: space-between; padding: 10px 14px; background: var(--tr-bg); margin-bottom: 6px; border-radius: 8px; border: 1px solid var(--tr-surface-light); }
#leaderboard-list li::before { content: counter(lb); color: var(--tr-accent-light); font-weight: 700; margin-right: 10px; min-width: 24px; }
#leaderboard-list li:nth-child(1) { border-color: var(--tr-gold); }
#leaderboard-list li:nth-child(1)::before { color: var(--tr-gold); }
#leaderboard-list .lb-score { font-family: 'JetBrains Mono', monospace; color: var(--tr-accent-light); font-weight: 600; }

@media (max-width: 900px) {
    .tr-layout { flex-direction: column; padding: 12px; }
    .ad-slot { width: 100%; }
    .ad-placeholder--vertical { width: 100%; height: 90px; }
    .tr-text { font-size: 1.1rem; line-height: 1.8; }
}