/* Number Master specific styles */

#game-ui {
    position: relative;
    width: 100%;
    max-width: 480px; /* Mobile width */
    height: 80vh;
    max-height: 800px;
    margin: 0 auto;
    background: #0f172a; /* Dark slate background */
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
}

#game-canvas {
    display: block;
    width: 100%;
    height: 100%;
    touch-action: none; /* Prevent browser scrolling when swiping */
}

/* HUD Overlay */
#hud {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 15px 20px;
    box-sizing: border-box;
    z-index: 10;
    pointer-events: none; /* Let clicks pass through to canvas */
}

.hud-cell {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 10px 15px;
    text-align: center;
    min-width: 80px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.hud-big {
    font-size: 24px;
    font-weight: 900;
    color: #f8fafc;
    margin-bottom: 4px;
}

.hud-label {
    font-size: 10px;
    font-weight: 700;
    color: #94a3b8;
    letter-spacing: 1px;
}

/* Overlays */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
    transition: opacity 0.3s ease;
}

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

.overlay-inner {
    background: #1e293b;
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    width: 80%;
    max-width: 320px;
}

.overlay-inner h2 {
    font-size: 28px;
    margin: 0 0 15px 0;
    color: #f8fafc;
    text-transform: uppercase;
    font-weight: 900;
    letter-spacing: 1px;
}

.overlay-inner p {
    color: #cbd5e1;
    font-size: 14px;
    line-height: 1.5;
}

.primary-btn {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 700;
    border-radius: 30px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    transition: transform 0.1s, box-shadow 0.1s;
    width: 100%;
    font-family: 'Outfit', sans-serif;
}

.primary-btn:active {
    transform: scale(0.95);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

.lc-stars {
    font-size: 32px;
    margin-bottom: 10px;
}

.lc-score-line {
    font-size: 20px;
    font-weight: 700;
    color: #fbbf24;
    margin-bottom: 15px;
}

.go-score-wrap {
    margin: 20px 0;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    padding: 15px;
}

.go-score {
    font-size: 32px;
    font-weight: 900;
    color: #3b82f6;
}

.go-lvl {
    color: #94a3b8;
    font-size: 14px;
    font-weight: 700;
}