:root {
    --bg-deep: #0b0a1f;
    --accent-a: #ff3d9a;
    --accent-b: #7c5cff;
    --accent-c: #ffcf4d;
    --accent-gradient: linear-gradient(135deg, var(--accent-a), var(--accent-b) 55%, var(--accent-c));
    --text-main: #f5f4fb;
    --text-dim: rgba(245, 244, 251, 0.65);
    --card-bg: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.14);
}

* {
    box-sizing: border-box;
}

body {
    background: var(--bg-deep);
    color: var(--text-main);
    margin: 0;
    min-height: 100vh;
    font-family: 'Poppins', 'Comic Sans', cursive;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.bg-glow {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(45rem 45rem at 15% 10%, rgba(255, 61, 154, 0.25), transparent 60%),
        radial-gradient(35rem 35rem at 90% 15%, rgba(124, 92, 255, 0.2), transparent 60%),
        linear-gradient(180deg, rgba(11, 10, 31, 0.9), rgba(11, 10, 31, 0.98));
}

.back-link {
    position: fixed;
    top: 1.25rem;
    left: 1.25rem;
    z-index: 2;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    padding: 0.5rem 1rem;
    border-radius: 0.75rem;
    backdrop-filter: blur(10px);
    transition: color 0.2s ease, border-color 0.2s ease;
}

.back-link:hover {
    color: var(--text-main);
    border-color: rgba(255, 255, 255, 0.3);
}

.game-shell {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    width: 100%;
    max-width: 30rem;
}

.hud-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.hud-chip {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
    white-space: nowrap;
}

.hud-chip span {
    color: var(--accent-c);
}

.arena {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1.25rem;
    padding: 1.5rem 1rem;
    backdrop-filter: blur(10px);
}

.hand-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-width: 0;
}

.hand-panel__label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hand-display {
    font-size: 4rem;
    line-height: 1;
    width: 6rem;
    height: 6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: 50%;
}

.hand-panel__note {
    font-size: 0.7rem;
    color: var(--text-dim);
    text-align: center;
    min-height: 1em;
}

.vs-badge {
    font-weight: 800;
    font-size: 1rem;
    color: var(--text-dim);
    letter-spacing: 0.05em;
}

.result-banner {
    width: 100%;
    text-align: center;
    padding: 0.75rem 1rem;
    border-radius: 0.85rem;
    font-weight: 700;
    font-size: 0.95rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
}

.result-banner[hidden] {
    display: none;
}

.result-banner--win {
    border-color: rgba(61, 220, 132, 0.5);
    color: #3ddc84;
}

.result-banner--lose {
    border-color: rgba(255, 61, 154, 0.5);
    color: var(--accent-a);
}

.result-banner--tie {
    border-color: rgba(255, 207, 77, 0.5);
    color: var(--accent-c);
}

.choice-row {
    display: flex;
    gap: 0.75rem;
    width: 100%;
}

.choice-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    font-family: inherit;
    border-radius: 1rem;
    padding: 1rem 0.5rem;
    cursor: pointer;
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.choice-btn:hover:not(:disabled) {
    transform: translateY(-3px);
    border-color: var(--accent-a);
    box-shadow: 0 15px 35px -20px rgba(255, 61, 154, 0.6);
}

.choice-btn:disabled {
    opacity: 0.45;
    cursor: default;
}

.choice-btn__emoji {
    font-size: 2.2rem;
}

.choice-btn__label {
    font-size: 0.85rem;
    font-weight: 700;
}

.reset-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 0.65rem;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.reset-btn:hover {
    border-color: rgba(255, 255, 255, 0.3);
}