:root {
    --primary: #00CEC9;
    --secondary: #81ECEC;
    --accent: #E17055;
    --background: #0A1A1A;
    --card-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text: #F5F5F5;
    --text-dim: #A0A0A0;
    --radius: 12px;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    background-color: var(--background);
    color: var(--text);
    font-family: var(--font);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.app-container {
    width: 100%;
    max-width: 600px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    height: 100vh;
    max-height: 900px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--text);
}

h1 span {
    color: var(--primary);
}

.stats {
    display: flex;
    gap: 1.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.canvas-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

canvas {
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 26, 26, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: var(--radius);
    z-index: 10;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.overlay-content {
    text-align: center;
}

.overlay h2 {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.overlay p {
    color: var(--text-dim);
    margin-bottom: 2rem;
}

footer {
    padding-bottom: 1rem;
}

.controls {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 1rem;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group label {
    font-size: 0.8rem;
    color: var(--text-dim);
}

select, button {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    color: var(--text);
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    font-family: var(--font);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

select:hover, button:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--secondary);
}

button#reset-btn {
    border-color: rgba(225, 112, 85, 0.3);
}

button#reset-btn:hover {
    background: rgba(225, 112, 85, 0.1);
    border-color: var(--accent);
}

button#next-level-btn, button#new-game-btn {
    background: var(--primary);
    color: var(--background);
    border: none;
    padding: 1rem 2rem;
}

button#next-level-btn:hover, button#new-game-btn:hover {
    background: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 206, 201, 0.4);
}

@media (max-width: 480px) {
    .app-container {
        padding: 1rem;
    }
    
    .controls {
        flex-wrap: wrap;
    }
    
    .control-group {
        width: 100%;
    }
}