:root {
    --bg: #050913;
    --bg-2: #0d1c2d;
    --panel: rgba(8, 15, 28, 0.88);
    --line: rgba(125, 167, 214, 0.22);
    --text: #f2f8ff;
    --muted: #9db2c9;
    --accent: #66f5ff;
    --danger: #ff5f7f;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: radial-gradient(circle at 20% 20%, #12263f 0%, var(--bg) 42%, #02040a 100%);
    color: var(--text);
    font-family: 'Manrope', sans-serif;
    touch-action: none;
}

body::before {
    content: '';
    position: fixed;
    inset: -40%;
    background:
        radial-gradient(circle at 70% 30%, rgba(95, 161, 255, 0.2) 0%, transparent 34%),
        radial-gradient(circle at 35% 72%, rgba(255, 122, 161, 0.16) 0%, transparent 30%);
    filter: blur(20px);
    pointer-events: none;
}

#gameCanvas {
    width: 100vw;
    height: 100vh;
    display: block;
}

.back-link {
    position: fixed;
    top: 14px;
    left: 14px;
    z-index: 1200;
    color: #d7ecff;
    text-decoration: none;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    padding: 8px 12px;
    border: 1px solid rgba(157, 213, 255, 0.32);
    border-radius: 999px;
    background: rgba(8, 18, 36, 0.7);
    backdrop-filter: blur(8px);
}

.hud {
    position: fixed;
    top: 64px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 25;
    display: grid;
    grid-template-columns: repeat(4, minmax(82px, 110px));
    gap: 8px;
}

.hud-chip {
    background: rgba(8, 15, 28, 0.68);
    border: 1px solid rgba(135, 177, 226, 0.22);
    border-radius: 12px;
    padding: 8px 10px;
    text-align: center;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.hud-chip span {
    display: block;
    font-size: 0.62rem;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.hud-chip strong {
    display: block;
    margin-top: 3px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.95rem;
    color: #eff8ff;
}

.overlay {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: grid;
    place-items: center;
    background: radial-gradient(circle at 50% 25%, rgba(20, 38, 64, 0.65), rgba(4, 8, 16, 0.88));
    backdrop-filter: blur(5px);
    padding: 20px;
}

.panel {
    width: min(520px, 100%);
    background: var(--panel);
    border: 1px solid rgba(127, 169, 219, 0.24);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px 22px;
    text-align: center;
}

.title,
.over-title {
    margin: 0;
    font-family: 'Orbitron', sans-serif;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.title {
    font-size: clamp(1.7rem, 6vw, 2.6rem);
}

.subtitle,
.over-game-name,
.hint,
.share-feedback {
    color: var(--muted);
}

.subtitle,
.over-game-name {
    margin: 8px 0 18px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.82rem;
    letter-spacing: 0.11em;
}

.best-row,
.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.stats {
    grid-template-columns: repeat(3, 1fr);
}

.best-row div,
.stats div {
    background: rgba(7, 16, 30, 0.75);
    border: 1px solid rgba(120, 163, 215, 0.2);
    border-radius: 12px;
    padding: 10px 8px;
}

.best-row span,
.stat-label,
.score-label {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.best-row strong,
.stat-value,
.score-value {
    display: block;
    margin-top: 4px;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.08rem;
}

.score-block {
    margin: 14px 0;
    padding: 14px;
    border-radius: 14px;
    border: 1px solid rgba(127, 170, 220, 0.24);
    background: rgba(8, 18, 34, 0.74);
}

.score-value {
    font-size: clamp(1.8rem, 6vw, 2.7rem);
    color: #f8fbff;
}

.button-row {
    margin-top: 16px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.btn {
    border: none;
    border-radius: 999px;
    padding: 12px 14px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #5df3ff, #7f95ff);
    color: #061225;
}

.btn-secondary {
    background: rgba(12, 25, 45, 0.9);
    border: 1px solid rgba(137, 180, 231, 0.34);
    color: #d5ebff;
}

.hint {
    margin: 14px 0 0;
    font-size: 0.88rem;
}

.share-feedback {
    margin-top: 10px;
    font-size: 0.84rem;
}

.hidden {
    display: none !important;
}

@media (max-width: 700px) {
    .hud {
        top: 58px;
        grid-template-columns: repeat(2, minmax(110px, 1fr));
    }

    .panel {
        padding: 18px 14px;
    }

    .button-row {
        grid-template-columns: 1fr;
    }
}