:root {
    --primary: #00f3ff;
    --secondary: #ff00ea;
    --danger: #ff3c00;
    --bg: #050505;
    --text: #ffffff;
    --hud-height: 70px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    overflow: hidden;
    position: fixed;
    inset: 0;
    height: 100dvh;
    width: 100vw;
}

#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

#hud {
    height: var(--hud-height);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 15px;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    z-index: 10;
    border-bottom: 1px solid rgba(0, 243, 255, 0.2);
}

.hud-left { display: flex; justify-content: flex-start; }
.hud-center { display: flex; flex-direction: column; align-items: center; min-width: 100px; gap: 2px; }
.hud-right { display: flex; justify-content: flex-end; gap: 15px; }

#lives-display {
    font-size: 14px;
    letter-spacing: 2px;
    filter: drop-shadow(0 0 5px var(--danger));
}

.hub-btn {
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    background: rgba(255, 255, 255, 0.05);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 14px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

#score {
    font-size: 28px;
    font-weight: 900;
    display: block;
    line-height: 1;
    text-shadow: 0 0 10px var(--primary);
    color: var(--primary);
}

#best-container { font-size: 10px; opacity: 0.6; letter-spacing: 1px; color: #fff; }

.icon-btn {
    background: none;
    border: none;
    color: var(--text);
    font-size: 20px;
    cursor: pointer;
    opacity: 0.8;
}

#level-tag {
    position: absolute;
    top: calc(var(--hud-height) + 15px);
    left: 15px;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 2px;
    color: var(--secondary);
    text-shadow: 0 0 10px var(--secondary);
    z-index: 5;
}

#gameCanvas {
    width: 100%;
    height: calc(100% - var(--hud-height));
    background: radial-gradient(circle at center, #0a0a1a 0%, #050505 100%);
}

/* Overlays */
.overlay {
    position: absolute;
    inset: 0;
    background: rgba(5, 5, 5, 0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
    padding: 20px;
    text-align: center;
    backdrop-filter: blur(5px);
}

.overlay.hidden { display: none !important; }

.game-title {
    font-size: 52px;
    font-weight: 900;
    color: var(--primary);
    line-height: 0.9;
    margin-bottom: 10px;
    text-shadow: 0 0 20px var(--primary);
}

.overlay-title {
    font-size: 36px;
    font-weight: 900;
    color: var(--secondary);
    margin-bottom: 25px;
    text-shadow: 0 0 15px var(--secondary);
}

.instruction {
    font-size: 14px;
    letter-spacing: 3px;
    opacity: 0.7;
    margin-bottom: 40px;
}

.instruction-box {
    width: 100%;
    max-width: 320px;
    margin-bottom: 25px;
    text-align: left;
}

.instruction-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 12px;
    background: rgba(255, 255, 255, 0.03);
    padding: 14px;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
}

.instruction-item p { font-size: 14px; color: rgba(255, 255, 255, 0.8); }

.control-text { font-size: 12px; opacity: 0.5; margin-bottom: 20px; line-height: 1.6; }

.primary-btn {
    background: var(--primary);
    color: #000;
    border: none;
    padding: 18px 45px;
    font-size: 18px;
    font-weight: 900;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 0 25px rgba(0, 243, 255, 0.3);
    transition: transform 0.1s, box-shadow 0.2s;
    margin-bottom: 15px;
}

.primary-btn:active { transform: scale(0.95); }

.secondary-btn { text-decoration: none; color: #fff; opacity: 0.5; font-size: 14px; font-weight: 600; }

.stat-row {
    display: flex;
    justify-content: space-between;
    width: 250px;
    margin-bottom: 15px;
    font-size: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

/* Social Share */
.share-section {
    margin: 25px 0 35px;
    width: 100%;
    max-width: 300px;
}

/* Mobile Controls */
#mobile-controls {
    position: absolute;
    bottom: 40px;
    right: 40px;
    z-index: 15;
    display: none; /* Shown via JS or Media Query */
}

.fire-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255, 60, 0, 0.2);
    border: 3px solid var(--danger);
    color: #fff;
    font-size: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 0 20px var(--danger);
    transition: all 0.2s ease;
    touch-action: none;
    -webkit-tap-highlight-color: transparent;
}

.fire-btn:active {
    transform: scale(0.9);
    background: var(--danger);
    box-shadow: 0 0 40px var(--danger);
}

@media (max-width: 768px) {
    #mobile-controls { display: block; }
}

.share-section p { font-size: 11px; letter-spacing: 2px; opacity: 0.4; margin-bottom: 15px; }

.share-btns { display: flex; gap: 12px; justify-content: center; }

.share-btn {
    flex: 1;
    border: none;
    padding: 12px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 13px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.share-btn.wa { background: #25D366; color: #fff; }
.share-btn.x { background: #000; color: #fff; border: 1px solid #333; }

.share-btn:active { opacity: 0.7; }