/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #06060f;
    --bg-card: rgba(15, 15, 35, 0.85);
    --text-primary: #e8e6f0;
    --text-secondary: #9590b8;
    --accent-purple: #a855f7;
    --accent-magenta: #e040a0;
    --accent-cyan: #22d3ee;
    --accent-gold: #fbbf24;
    --accent-green: #34d399;
    --glow-purple: 0 0 20px rgba(168, 85, 247, 0.4);
    --glow-cyan: 0 0 20px rgba(34, 211, 238, 0.4);
    --glow-gold: 0 0 20px rgba(251, 191, 36, 0.5);
    --radius: 16px;
    --radius-sm: 10px;
    --font: 'Outfit', sans-serif;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text-primary);
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== SCREENS ===== */
.screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.screen.active {
    opacity: 1;
    pointer-events: all;
}

.screen-content {
    text-align: center;
    padding: 48px 40px;
    background: var(--bg-card);
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: var(--radius);
    backdrop-filter: blur(24px);
    box-shadow: 0 8px 60px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255,255,255,0.05);
    max-width: 480px;
    width: 90%;
    animation: cardFloat 0.6s ease-out;
}

@keyframes cardFloat {
    from { transform: translateY(30px) scale(0.96); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
}

/* ===== TYPOGRAPHY ===== */
.game-title {
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: 6px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-magenta), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    text-shadow: none;
    filter: drop-shadow(0 0 30px rgba(168, 85, 247, 0.3));
    animation: titlePulse 3s ease-in-out infinite alternate;
}

@keyframes titlePulse {
    from { filter: drop-shadow(0 0 20px rgba(168, 85, 247, 0.2)); }
    to { filter: drop-shadow(0 0 40px rgba(168, 85, 247, 0.5)); }
}

.screen-title {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 6px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-weight: 300;
}

/* ===== BUTTONS ===== */
.btn-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-group.vertical {
    flex-direction: column;
    align-items: stretch;
}

.btn {
    position: relative;
    font-family: var(--font);
    font-size: 1.1rem;
    font-weight: 600;
    padding: 16px 32px;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-align: left;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.3s;
}

.btn:hover::before {
    opacity: 1;
}

.btn:active {
    transform: scale(0.97);
}

.btn-icon {
    font-size: 1.3rem;
}

.btn-desc {
    display: block;
    font-size: 0.78rem;
    font-weight: 300;
    color: rgba(255,255,255,0.5);
    margin-left: auto;
}

/* Primary - purple gradient */
.btn-primary {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(168, 85, 247, 0.05));
    color: var(--accent-purple);
    border-color: rgba(168, 85, 247, 0.3);
}
.btn-primary:hover {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.3), rgba(168, 85, 247, 0.1));
    box-shadow: var(--glow-purple);
    border-color: var(--accent-purple);
}

/* Accent - magenta */
.btn-accent {
    background: linear-gradient(135deg, rgba(224, 64, 160, 0.2), rgba(168, 85, 247, 0.1));
    color: var(--accent-magenta);
    border-color: rgba(224, 64, 160, 0.3);
}
.btn-accent:hover {
    background: linear-gradient(135deg, rgba(224, 64, 160, 0.4), rgba(168, 85, 247, 0.2));
    box-shadow: 0 0 20px rgba(224, 64, 160, 0.4);
    border-color: var(--accent-magenta);
}

/* Secondary */
.btn-secondary {
    background: rgba(255,255,255,0.04);
    color: var(--text-secondary);
    border-color: rgba(255,255,255,0.08);
    font-size: 0.95rem;
    padding: 12px 24px;
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.08);
    color: var(--text-primary);
}

/* Difficulty buttons */
.btn-easy {
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.12), rgba(52, 211, 153, 0.04));
    color: var(--accent-green);
    border-color: rgba(52, 211, 153, 0.25);
}
.btn-easy:hover {
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.25), rgba(52, 211, 153, 0.08));
    box-shadow: 0 0 20px rgba(52, 211, 153, 0.3);
    border-color: var(--accent-green);
}

.btn-medium {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.12), rgba(251, 191, 36, 0.04));
    color: var(--accent-gold);
    border-color: rgba(251, 191, 36, 0.25);
}
.btn-medium:hover {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.25), rgba(251, 191, 36, 0.08));
    box-shadow: var(--glow-gold);
    border-color: var(--accent-gold);
}

.btn-hard {
    background: linear-gradient(135deg, rgba(224, 64, 160, 0.12), rgba(239, 68, 68, 0.06));
    color: var(--accent-magenta);
    border-color: rgba(224, 64, 160, 0.25);
}
.btn-hard:hover {
    background: linear-gradient(135deg, rgba(224, 64, 160, 0.3), rgba(239, 68, 68, 0.12));
    box-shadow: 0 0 25px rgba(224, 64, 160, 0.4);
    border-color: var(--accent-magenta);
}

.btn-small {
    font-size: 0.85rem;
    padding: 8px 16px;
}

.back-btn {
    margin-top: 24px;
}

/* ===== GAME HUD ===== */
.game-hud {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    z-index: 10;
    background: linear-gradient(to bottom, rgba(6,6,15,0.9), transparent);
}

.star-counter {
    display: flex;
    gap: 8px;
    font-size: 1.8rem;
}

.star-icon {
    color: rgba(255,255,255,0.15);
    transition: all 0.4s ease;
    filter: none;
}

.star-icon.collected {
    color: var(--accent-gold);
    filter: drop-shadow(0 0 8px rgba(251, 191, 36, 0.7));
    animation: starBounce 0.5s ease;
}

@keyframes starBounce {
    0% { transform: scale(1); }
    40% { transform: scale(1.5) rotate(20deg); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); }
}

.timer {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.canvas-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

#maze-canvas {
    display: block;
    border-radius: 4px;
}

.game-hint {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: var(--bg-card);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.06);
    z-index: 10;
    transition: opacity 0.5s;
}

.hint-secret {
    bottom: 70px;
    color: var(--accent-magenta);
    opacity: 0;
    border-color: rgba(224, 64, 160, 0.2);
    background: rgba(224, 64, 160, 0.05);
}

.hint-secret.visible {
    opacity: 1;
}

/* ===== VICTORY ===== */
.victory-content {
    max-width: 520px;
}

.victory-title {
    font-size: 2.6rem;
    font-weight: 900;
    margin-bottom: 12px;
    animation: victoryPulse 1.5s ease-in-out infinite alternate;
}

@keyframes victoryPulse {
    from { transform: scale(1); }
    to { transform: scale(1.04); }
}

.victory-sub {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    line-height: 1.5;
}

.victory-stats {
    display: flex;
    gap: 32px;
    justify-content: center;
    margin-bottom: 32px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-cyan);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
    .game-title { font-size: 2.8rem; letter-spacing: 3px; }
    .screen-content { padding: 32px 24px; }
    .btn { padding: 14px 24px; font-size: 1rem; }
    .star-counter { font-size: 1.4rem; }
}