/* hanoi3d.css – Premium dark/glassmorphism style for the 3D Hanoi game */

/* Root variables for the colour palette */
:root {
    --primary-bg: #0B1120; /* dark navy */
    --secondary-bg: rgba(0, 210, 255, 0.08); /* cyan accent */
    --accent-gradient: linear-gradient(135deg, #6473ff, #a29bfe);
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.15);
    --text-primary: #e2e8f0; /* light gray */
    --text-muted: #94a3b8;
    --success: #a29bfe;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: var(--primary-bg);
    color: var(--text-primary);
    font-family: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    overflow: hidden;
}

/* HUD – controls and stats */
.hud {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 12px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 200px;
}

.hud h1 {
    margin: 0;
    font-size: 1.6rem;
    color: var(--success);
    text-shadow: 0 0 8px rgba(162,155,254,0.6);
}

.hud label, .hud select, .hud button, .hud span {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin: 0;
}

.hud select {
    background: var(--secondary-bg);
    border: none;
    color: var(--text-primary);
    padding: 4px 8px;
    border-radius: 6px;
    outline: none;
}

.hud button {
    background: var(--accent-gradient);
    border: none;
    color: #fff;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: transform 0.1s ease;
}

.hud button:hover {
    transform: scale(1.05);
}

/* Leaderboard table */
#leaderboard {
    margin-top: 8px;
}
#leaderboard h3 {
    margin: 0 0 4px 0;
    font-size: 1.1rem;
    color: var(--success);
}
#leaderboard table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}
#leaderboard th, #leaderboard td {
    padding: 4px 6px;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-primary);
}
#leaderboard th {
    background: var(--secondary-bg);
    color: var(--success);
}

/* Victory overlay – glassy full-screen */
#victoryOverlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.85);
    color: var(--success);
    font-family: 'Inter', sans-serif;
    backdrop-filter: blur(4px);
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 20;
}
#victoryOverlay h1 {
    margin: 0 0 12px 0;
    font-size: 3rem;
    text-shadow: 0 0 12px rgba(162,155,254,0.8);
}
#victoryOverlay button {
    background: var(--accent-gradient);
    border: none;
    color: #fff;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    margin-top: 1rem;
}

/* 3D canvas – fill the whole viewport */
canvas {
    display: block;
    width: 100%;
    height: 100%;
}