/* Bubble Pop Styles */
:root {
    --bg-dark: #050505;
    --bg-card: rgba(20, 20, 25, 0.7);
    --primary-neon: #6366f1;
    --secondary-neon: #ec4899;
    --accent-cyan: #06b6d4;
    --text-main: #fff;
    --text-dim: #94a3b8;
    --border-glass: rgba(255, 255, 255, 0.1);
    --radius-xl: 24px;
    --golden: #fbbf24;
    --danger: #ef4444;
    --success: #22c55e;
}

body {
    background: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Screens */
.game-container {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    padding: 20px 16px;
    min-height: 70vh;
}

.screen {
    display: none;
}

.screen.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Start Screen */
.start-content {
    text-align: center;
    padding-top: 20px;
}

.game-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-neon), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.game-subtitle {
    color: var(--text-dim);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* Bubble Preview */
.bubble-preview {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin: 20px auto 30px;
}

.preview-bubble {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.4), var(--primary-neon) 60%, rgba(99,102,241,0.3));
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4), inset 0 -4px 8px rgba(0,0,0,0.2);
    animation: previewFloat 2s ease-in-out infinite;
}

.preview-bubble.small {
    width: 40px;
    height: 40px;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.4), var(--secondary-neon) 60%, rgba(236,72,153,0.3));
    box-shadow: 0 0 16px rgba(236, 72, 153, 0.4), inset 0 -4px 8px rgba(0,0,0,0.2);
    animation-delay: 0.3s;
}

.preview-bubble.tiny {
    width: 28px;
    height: 28px;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.4), var(--accent-cyan) 60%, rgba(6,182,212,0.3));
    box-shadow: 0 0 12px rgba(6, 182, 212, 0.4), inset 0 -4px 8px rgba(0,0,0,0.2);
    animation-delay: 0.6s;
}

@keyframes previewFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* Legend */
.legend {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 8px 12px;
    font-size: 0.85rem;
}

.legend-bubble {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    display: inline-block;
}

.small-dot { background: var(--accent-cyan); }
.medium-dot { background: var(--primary-neon); }
.large-dot { background: var(--secondary-neon); }
.golden-dot { background: var(--golden); }
.rainbow-dot { background: linear-gradient(135deg, #f00, #ff0, #0f0, #0ff, #00f, #f0f); }
.bomb-dot { background: var(--danger); }

.legend-pts {
    font-weight: 700;
    font-size: 0.8rem;
}

.legend-pts.plus { color: var(--success); }
.legend-pts.golden-pts { color: var(--golden); }
.legend-pts.rainbow-pts { color: var(--accent-cyan); }
.legend-pts.minus { color: var(--danger); }

/* Buttons */
.btn-primary {
    display: inline-block;
    padding: 16px 48px;
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--primary-neon), var(--accent-cyan));
    border: none;
    border-radius: 16px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 0 24px rgba(99, 102, 241, 0.3);
    margin-bottom: 16px;
}

.btn-primary:hover { transform: scale(1.05); box-shadow: 0 0 32px rgba(99, 102, 241, 0.5); }
.btn-primary:active { transform: scale(0.97); }

.btn-secondary {
    display: inline-block;
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dim);
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
}

.btn-secondary:hover { transform: scale(1.03); border-color: var(--primary-neon); color: #fff; }

.high-score-display {
    color: var(--text-dim);
    font-size: 0.95rem;
    margin-top: 8px;
}

/* HUD */
.hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 4px;
    gap: 8px;
}

.hud-item {
    text-align: center;
    flex: 1;
}

.hud-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hud-value {
    display: block;
    font-size: 1.4rem;
    font-weight: 800;
}

.combo-item .hud-value {
    color: var(--golden);
}

.timer-item .hud-value {
    color: var(--accent-cyan);
}

/* Timer Bar */
.timer-bar-container {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 2px;
    margin-bottom: 8px;
    overflow: hidden;
}

.timer-bar {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--primary-neon));
    border-radius: 2px;
    transition: width 1s linear;
}

.timer-bar.danger {
    background: linear-gradient(90deg, var(--danger), #f97316);
}

/* Canvas */
#gameCanvas {
    display: block;
    width: 100%;
    border-radius: var(--radius-xl);
    background: radial-gradient(ellipse at 50% 100%, rgba(99,102,241,0.08) 0%, transparent 60%),
                rgba(10, 10, 15, 0.9);
    border: 1px solid var(--border-glass);
    touch-action: none;
    cursor: pointer;
}

/* Countdown */
.countdown-overlay {
    position: absolute;
    inset: 0;
    display: none;
    justify-content: center;
    align-items: center;
    background: rgba(5, 5, 5, 0.85);
    border-radius: var(--radius-xl);
    z-index: 10;
}

.countdown-overlay.active {
    display: flex;
}

.countdown-text {
    font-size: 5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-neon), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: countPulse 0.6s ease-out;
}

@keyframes countPulse {
    0% { transform: scale(1.6); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

/* Game Over */
.gameover-content {
    text-align: center;
    padding-top: 30px;
}

.gameover-title {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-neon), var(--secondary-neon));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.new-record {
    display: inline-block;
    padding: 6px 20px;
    background: linear-gradient(135deg, var(--golden), #f59e0b);
    color: #000;
    font-weight: 700;
    border-radius: 20px;
    font-size: 1rem;
    margin-bottom: 20px;
    animation: recordPop 0.5s ease;
}

.new-record.hidden { display: none; }

@keyframes recordPop {
    0% { transform: scale(0); }
    60% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin: 20px auto;
    max-width: 360px;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 16px 12px;
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 6px;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
}

.gameover-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 24px;
    flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 480px) {
    .game-title { font-size: 2rem; }
    .legend { gap: 8px; }
    .legend-item { padding: 6px 8px; font-size: 0.75rem; }
    .hud-value { font-size: 1.2rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .btn-primary { padding: 14px 36px; font-size: 1.1rem; }
}