:root {
    --bg-color: #050507;
    --panel-bg: rgba(255, 255, 255, 0.03);
    --overlay-bg: rgba(0, 0, 0, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-color: #ffffff;
    --accent-color: #00f2ff;
    --accent-glow: 0 0 15px rgba(0, 242, 255, 0.5);
    --paddle-color: #00f2ff;
    --ball-color: #ffffff;
    --brick-row-1: #ff0055;
    --brick-row-2: #ff9f00;
    --brick-row-3: #fbff00;
    --brick-row-4: #00ff66;
    --brick-row-5: #00f2ff;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Outfit', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}

.game-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 30px;
    background: var(--panel-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 32px;
    box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.7);
    max-width: 900px;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    padding: 0 10px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-item .label {
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.4);
    font-weight: 600;
}

.stat-item .value {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--accent-color);
    text-shadow: var(--accent-glow);
    font-variant-numeric: tabular-nums;
}

.canvas-wrapper {
    position: relative;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    background: #000;
    display: flex;
}

#gameCanvas {
    display: block;
    max-width: 100%;
    height: auto;
    cursor: none;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
    text-align: center;
    padding: 40px;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.overlay h1 {
    font-size: 3.5rem;
    margin-bottom: 10px;
    background: linear-gradient(to bottom, #fff, var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: var(--accent-glow);
    letter-spacing: -1px;
}

.overlay p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 30px;
}

.difficulty-selection {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
}

.diff-btn {
    padding: 10px 20px;
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.5);
    border: 1px solid var(--border-color);
    box-shadow: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.diff-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transform: translateY(-1px);
}

.diff-btn.active {
    background: rgba(0, 242, 255, 0.15);
    color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(0, 242, 255, 0.2);
}

.controls-guide {
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.controls-guide p {
    margin: 0;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.05);
    padding: 8px 16px;
    border-radius: 100px;
    border: 1px solid var(--border-color);
}

button {
    padding: 16px 40px;
    font-size: 1.1rem;
    font-family: inherit;
    font-weight: 600;
    background: var(--accent-color);
    color: #000;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--accent-glow);
}

button:hover {
    transform: translateY(-2px) scale(1.02);
    filter: brightness(1.1);
    box-shadow: 0 0 25px rgba(0, 242, 255, 0.7);
}

button:active {
    transform: translateY(0);
}

.final-stats {
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.final-stats span {
    color: var(--accent-color);
    font-weight: 600;
}

@media (max-width: 850px) {
    .game-container {
        padding: 20px;
        border-radius: 20px;
    }

    .overlay h1 {
        font-size: 2.5rem;
    }
}