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

body {
    font-family: 'Arial', sans-serif;
    background: #0f0a19;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

#game-container {
    position: relative;
    width: 900px;
    height: 650px;
    background: linear-gradient(135deg, #1a0f2e 0%, #0f0a19 100%);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 0 40px rgba(100, 50, 200, 0.3);
}

#game-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    pointer-events: none;
    z-index: 10;
}

#score {
    font-size: 52px;
    font-weight: bold;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

#lives {
    display: flex;
    gap: 6px;
}

.heart {
    font-size: 22px;
    filter: drop-shadow(2px 2px 2px rgba(0,0,0,0.5));
}

.heart.lost {
    opacity: 0.3;
}

#timer {
    font-size: 20px;
    color: #888;
    position: absolute;
    right: 20px;
    top: 20px;
}

#combo-display {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 36px;
    font-weight: bold;
    color: #ff8c00;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 20;
}

#combo-display.show {
    opacity: 1;
}

#gesture-progress {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
    z-index: 30;
}

#gesture-progress.hidden {
    display: none;
}

.progress-bar {
    width: 200px;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    overflow: hidden;
    margin: 0 auto 10px;
}

.progress-bar-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #ff6b35, #ffdc3c);
    border-radius: 4px;
    transition: width 0.1s;
}

#gesture-progress p {
    color: white;
    font-size: 18px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.7);
    z-index: 50;
    backdrop-filter: blur(5px);
}

.screen.hidden {
    display: none;
}

.screen h1 {
    font-size: 56px;
    color: #dc3c3c;
    margin-bottom: 20px;
    text-shadow: 0 0 20px rgba(220, 60, 60, 0.5);
}

.screen p {
    font-size: 20px;
    color: #ccc;
    margin-bottom: 10px;
    text-align: center;
}

button {
    padding: 15px 40px;
    font-size: 24px;
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    border: none;
    border-radius: 30px;
    color: white;
    cursor: pointer;
    margin-top: 30px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

button:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.6);
}

button:active {
    transform: scale(0.98);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #333;
    border-top-color: #ff8c00;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#final-score {
    font-size: 32px;
    color: #ffdc3c;
    margin: 20px 0;
}

/* Responsive */
@media (max-width: 950px) {
    #game-container {
        width: 100%;
        height: 100vh;
        border-radius: 0;
    }
}

/* Cursor trail effect */
.cursor-trail {
    position: absolute;
    width: 10px;
    height: 10px;
    background: rgba(100, 200, 255, 0.8);
    border-radius: 50%;
    pointer-events: none;
    z-index: 15;
}