:root {
    --bg-color: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --card-bg: rgba(30, 41, 59, 0.7);
    --border: rgba(255, 255, 255, 0.1);
    --success: #10b981;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: 
        radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), 
        radial-gradient(at 50% 0%, hsla(225,39%,30%,0.2) 0, transparent 50%), 
        radial-gradient(at 100% 0%, hsla(339,49%,30%,0.2) 0, transparent 50%);
}

.container {
    max-width: 800px;
    padding: 2rem;
    width: 100%;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.pulse {
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.feature-item {
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid var(--border);
}

.primary-btn {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
}

.primary-btn:hover {
    background-color: var(--accent-hover);
}

#test-result {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 0.5rem;
    background: rgba(255,255,255,0.05);
    font-family: monospace;
    font-size: 0.9rem;
}

.hidden {
    display: none;
}

footer {
    text-align: center;
    margin-top: 3rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.game-section {
    margin: 2.5rem 0;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 0.75rem;
    border: 1px solid var(--border);
}

.game-section h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    text-align: center;
}

.game-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-weight: 600;
}

.game-board {
    position: relative;
    width: 100%;
    height: 250px;
    background: rgba(15, 23, 42, 0.8);
    border-radius: 0.5rem;
    overflow: hidden;
    cursor: crosshair;
}

.target-dot {
    position: absolute;
    width: 30px;
    height: 30px;
    background: var(--accent);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px var(--accent);
    transition: all 0.1s;
    cursor: pointer;
}

.target-dot:active {
    transform: translate(-50%, -50%) scale(0.9);
}

.game-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 10;
}

.game-overlay.hidden {
    display: none;
}

.secondary-btn {
    background-color: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.secondary-btn:hover {
    background-color: rgba(59, 130, 246, 0.1);
}