:root {
    --bg-core: #0a0b0d;
    --bg-surface: #15191d;
    --primary: #f59e0b;
    --primary-glow: rgba(245, 158, 11, 0.2);
    --text-main: #e2e8f0;
    --text-dim: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --accent-red: #f43f5e;
}

body {
    margin: 0;
    font-family: 'Space Grotesk', sans-serif;
    background-color: var(--bg-core);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 450px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    padding: 40px;
    border-radius: 12px;
    position: relative;
    text-align: center;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
}

.container::before {
    content: "MODULE // 04 // SYNC_STRESS_TEST";
    position: absolute;
    top: -24px;
    left: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--primary);
    letter-spacing: 1px;
}

.back-link {
    display: block;
    text-align: left;
    margin-bottom: 24px;
    text-decoration: none;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
}

h1 {
    font-size: 1.8rem;
    margin-bottom: 40px;
    text-transform: uppercase;
    letter-spacing: -1px;
}

.game-area {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    padding: 40px 20px;
    border: 1px solid var(--border);
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

/* Timer HUD Styling */
#timer {
    font-family: 'JetBrains Mono', monospace;
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-red);
    text-shadow: 0 0 20px rgba(244, 63, 94, 0.3);
    margin-bottom: 10px;
}

#score {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 30px;
    letter-spacing: 2px;
}

#score::before {
    content: "COUNT: ";
    opacity: 0.5;
}

/* Main Button HUD Styling */
#click-area {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    border-radius: 50%;
    border: 4px solid var(--primary);
    background: transparent;
    color: var(--primary);
    font-family: inherit;
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
    transition: 0.1s;
    box-shadow: inset 0 0 20px var(--primary-glow), 0 0 20px var(--primary-glow);
    text-transform: uppercase;
    display: flex;
    justify-content: center;
    align-items: center;
}

#click-area:active {
    transform: scale(0.95);
    background: var(--primary-glow);
    box-shadow: inset 0 0 40px var(--primary-glow), 0 0 40px var(--primary-glow);
}

#start-button {
    padding: 16px 40px;
    font-size: 1.1rem;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    background: var(--primary);
    color: var(--bg-core);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-transform: uppercase;
    box-shadow: 0 0 20px var(--primary-glow);
}

/* Leaderboard */
.leaderboard {
    text-align: left;
}

.leaderboard h2 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    color: var(--text-dim);
    text-transform: uppercase;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
}

.scores p {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    margin: 10px 0;
    display: flex;
    justify-content: space-between;
}

.scores span {
    color: var(--primary);
    font-weight: 700;
}