:root {
    --bg: #0a0b10;
    --primary: #00f3ff;
    --secondary: #ff00de;
    --accent: #bc00ff;
    --success: #00ff88;
    --text: #ffffff;
    --font-arcade: 'Press Start 2P', cursive;
    --font-ui: 'Outfit', sans-serif;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --header-height: 80px;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-ui);
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

#gameWrapper {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 600px;
    background-color: var(--bg);
    overflow: hidden;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
}

#gameCanvas {
    display: block;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, #1a1b25 0%, #0a0b10 100%);
}

/* UI Overlays */
.overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 11, 16, 0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
    z-index: 100;
}

.hidden { display: none !important; }

h1 {
    font-family: var(--font-arcade);
    font-size: 2rem;
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary), 0 0 20px var(--primary);
    margin-bottom: 2rem;
    line-height: 1.4;
}

p {
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    line-height: 1.6;
}

.btn {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 15px 30px;
    font-family: var(--font-arcade);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
    margin: 10px;
    width: 80%;
}

.btn:hover {
    background: var(--primary);
    color: var(--bg);
    box-shadow: 0 0 20px var(--primary);
}

.hud-pill {
    position: absolute;
    left: 50%;
    top: calc(env(safe-area-inset-top) + 20px);
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    padding: 6px 16px;
    border-radius: 50px;
    pointer-events: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 1100;
}

.hud-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 50px;
}

.hud-label {
    font-size: 0.45rem;
    color: rgba(255, 255, 255, 0.4);
    font-family: var(--font-arcade);
    margin-bottom: 2px;
}

.hud-value {
    font-size: 0.85rem;
    font-weight: 700;
    font-family: var(--font-ui);
    color: var(--primary);
    text-shadow: 0 0 8px rgba(0, 243, 255, 0.3);
}

#ui-lives {
    color: var(--secondary);
    text-shadow: 0 0 8px rgba(255, 0, 222, 0.3);
}

.hud-divider {
    width: 1px;
    height: 20px;
    background: rgba(255, 255, 255, 0.15);
}

/* Control Hints */
.control-hint {
    position: absolute;
    bottom: calc(40px + env(safe-area-inset-bottom));
    width: 100%;
    text-align: center;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.3);
    pointer-events: none;
}

/* Modals */
.modal-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(243, 0, 255, 0.3);
    padding: 30px;
    border-radius: 20px;
    max-width: 90%;
    backdrop-filter: blur(10px);
}

.powerup-hint {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
    text-align: left;
}

.pu-icon {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 14px;
}

/* --- HEADER & CONTROLS --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1001;
    pointer-events: none;
    background: transparent;
}

.header > * {
    pointer-events: auto;
}

.home-btn {
    position: absolute;
    left: 20px;
    top: calc(env(safe-area-inset-top) + 20px);
    text-decoration: none;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 500;
    padding: 0.6rem 1rem;
    border-radius: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    white-space: nowrap;
    z-index: 2000 !important;
}

.home-btn:hover {
    color: var(--text);
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
    transform: translateX(5px);
}

.header-controls {
    position: absolute;
    right: 20px;
    top: calc(env(safe-area-inset-top) + 20px);
    display: flex;
    gap: 10px;
    z-index: 2000 !important;
}

.icon-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    outline: none;
}

.icon-btn:hover {
    border-color: var(--primary);
    transform: scale(1.1);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
}

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

@media (max-width: 600px) {
    :root { --header-height: 140px; }
    
    .home-btn {
        left: 10px;
        top: calc(env(safe-area-inset-top) + 15px);
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
    .hud-pill {
        gap: 8px;
        padding: 4px 12px;
        top: calc(env(safe-area-inset-top) + 65px);
        transform: translateX(-50%) scale(0.9);
    }
    .header-controls {
        right: 10px !important;
        top: calc(env(safe-area-inset-top) + 15px) !important;
    }
}

@media (max-width: 550px) {
    .home-btn { font-size: 0 !important; }
    .home-btn::before { content: '← Hub'; font-size: 0.75rem; }
}

@media (max-width: 360px) {
    .home-btn {
        width: 40px;
        overflow: hidden;
        padding: 0.4rem 0;
        justify-content: center;
    }
    .home-btn::before { content: '←'; }
}
/* --- GAME OVER OVERLAY --- */
.go-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.go-card {
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(0, 243, 255, 0.2);
    border-radius: 20px;
    padding: 32px 24px;
    min-width: 280px;
    max-width: 90%;
    text-align: center;
    box-shadow: 0 0 40px rgba(0, 243, 255, 0.15);
    animation: slideUp 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

.go-title {
    font-family: var(--font-arcade);
    font-size: 28px;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.go-score-text {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 4px;
}

.go-best-text {
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 24px;
    font-weight: 700;
}

.share-row {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.share-btn {
    flex: 1;
    border: none;
    border-radius: 12px;
    padding: 13px;
    font-weight: 700;
    letter-spacing: 1.5px;
    font-size: 11px;
    cursor: pointer;
    transition: transform 0.2s;
    color: #fff;
    font-family: var(--font-ui);
    text-transform: uppercase;
}

.share-btn.twitter { background: #1DA1F2; }
.share-btn.whatsapp { background: #25D366; }
.share-btn:active { transform: scale(0.95); }

.arcade-btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 2px;
    cursor: pointer;
    margin-bottom: 12px;
    font-family: var(--font-ui);
    transition: all 0.2s;
}

.arcade-btn.retry {
    background: var(--primary);
    color: #000;
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.3);
}

.arcade-btn:active { transform: scale(0.98); }

.arcade-btn-outline {
    width: 100%;
    padding: 11px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.arcade-btn-outline:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.05);
}

/* --- TRANSITION OVERLAY --- */
.transition-overlay {
    background: rgba(0, 0, 0, 0.9);
    z-index: 10001;
}

.transition-content {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.transition-content h2 {
    font-family: var(--font-arcade);
    color: var(--success);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.stars-row {
    font-size: 2rem;
    margin-bottom: 2rem;
    letter-spacing: 10px;
}

.mechanic-preview {
    background: rgba(255, 255, 255, 0.05);
    padding: 15px 25px;
    border-radius: 15px;
    border-left: 4px solid var(--primary);
}

.mechanic-preview span {
    font-size: 11px;
    color: var(--primary);
    font-weight: 700;
    display: block;
    margin-bottom: 5px;
}

.mechanic-preview p {
    margin-bottom: 0;
    font-weight: 700;
    font-size: 13px;
}

/* --- COMBO TOAST --- */
.combo-toast {
    position: absolute;
    top: 150px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary);
    color: #fff;
    padding: 8px 20px;
    border-radius: 50px;
    font-family: var(--font-arcade);
    font-size: 0.8rem;
    box-shadow: 0 0 20px var(--secondary);
    z-index: 1000;
    pointer-events: none;
    animation: toastPop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes toastPop {
    0% { transform: translateX(-50%) scale(0.5); opacity: 0; }
    50% { transform: translateX(-50%) scale(1.2); }
    100% { transform: translateX(-50%) scale(1); opacity: 1; }
}

@media (max-width: 600px) {
    .go-card { padding: 24px 16px; }
    .go-title { font-size: 24px; }
}