@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Space+Grotesk:wght@400;500;700&display=swap');

:root {
    --bg-color: #080710;
    --panel-bg: rgba(16, 15, 30, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    
    /* Neon Colors */
    --neon-cyan: #00f0ff;
    --neon-pink: #ff007f;
    --neon-orange: #ff5e00;
    --neon-green: #39ff14;
    --neon-purple: #bd00ff;
    --neon-yellow: #ffe600;
    
    /* Box Shadows */
    --shadow-cyan: 0 0 15px rgba(0, 240, 255, 0.4);
    --shadow-pink: 0 0 15px rgba(255, 0, 127, 0.4);
    --shadow-orange: 0 0 15px rgba(255, 94, 0, 0.4);
    --shadow-green: 0 0 15px rgba(57, 255, 20, 0.4);
    --shadow-purple: 0 0 15px rgba(189, 0, 255, 0.4);
    
    /* Active Theme */
    --theme-color: var(--neon-cyan);
    --theme-shadow: var(--shadow-cyan);
}

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

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(90, 0, 120, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(0, 120, 150, 0.15) 0%, transparent 40%);
    color: #ffffff;
    font-family: 'Space Grotesk', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
    padding: 20px;
}

/* Header/Title */
header {
    text-align: center;
    margin-bottom: 24px;
    z-index: 10;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 4px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

h1 span {
    font-size: 1.5rem;
    color: #fff;
    -webkit-text-fill-color: initial;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    vertical-align: middle;
}

header p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1rem;
    letter-spacing: 1px;
}

/* Main Grid Layout */
.app-container {
    display: grid;
    grid-template-columns: 300px 480px 300px;
    gap: 24px;
    width: 100%;
    max-width: 1150px;
    align-items: start;
    justify-content: center;
    position: relative;
}

/* Glassmorphic Side Panels */
.side-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    height: 640px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
}

.panel-header {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Controls / Skins Panel (Left) */
.skins-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    overflow-y: auto;
    flex-grow: 1;
    padding-right: 4px;
}

.skins-container::-webkit-scrollbar {
    width: 6px;
}
.skins-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.skin-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s ease;
}

.skin-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.skin-card.active {
    background: rgba(var(--skin-rgb, 0, 240, 255), 0.1);
    border-color: var(--skin-color, var(--neon-cyan));
    box-shadow: 0 0 10px rgba(var(--skin-rgb, 0, 240, 255), 0.2);
}

.skin-preview {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.skin-details {
    flex-grow: 1;
}

.skin-name {
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.skin-desc {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

.controls-guide {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.control-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.85rem;
}

.control-key {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: monospace;
    font-weight: bold;
    box-shadow: 0 2px 0 rgba(0,0,0,0.5);
}

/* Leaderboard Panel (Right) */
.leaderboard-list {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 4px;
}

.leaderboard-list::-webkit-scrollbar {
    width: 6px;
}
.leaderboard-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    font-size: 0.95rem;
}

.leaderboard-item.top-three {
    background: rgba(255, 255, 255, 0.04);
}

.leaderboard-rank {
    font-weight: bold;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

.rank-1 { background: gold; color: #000; box-shadow: 0 0 10px rgba(255, 215, 0, 0.5); }
.rank-2 { background: silver; color: #000; box-shadow: 0 0 10px rgba(192, 192, 192, 0.5); }
.rank-3 { background: #cd7f32; color: #000; box-shadow: 0 0 10px rgba(205, 127, 50, 0.5); }
.rank-other { color: rgba(255, 255, 255, 0.4); }

.leaderboard-name {
    flex-grow: 1;
    margin-left: 12px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.leaderboard-score {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    color: var(--neon-cyan);
}

.leaderboard-empty {
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    padding: 40px 0;
    font-style: italic;
    font-size: 0.9rem;
}

/* Game Center Area */
.game-container {
    position: relative;
    width: 480px;
    height: 640px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.8), 0 0 0 2px rgba(255,255,255,0.05);
}

/* Custom Bezel Border to look like an Arcade Screen */
.arcade-bezel {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    border-radius: 16px;
    box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.9);
    border: 4px solid rgba(255, 255, 255, 0.08);
    z-index: 5;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    background: #000;
}

/* Glassmorphic Screens Overlays inside the Game Container */
.screen-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(8, 7, 16, 0.65);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 30px;
    text-align: center;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

.overlay-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #fff;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

/* Neon buttons */
.btn {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 12px 28px;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    color: white;
    box-shadow: 0 4px 15px rgba(255, 0, 127, 0.3);
    transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 8px;
}

.btn:hover {
    transform: scale(1.06);
    box-shadow: 0 0 25px var(--theme-color), 0 5px 20px rgba(0, 0, 0, 0.4);
}

.btn:active {
    transform: scale(0.96);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-color);
    box-shadow: none;
    color: #fff;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

/* Sound and Pause HUD Buttons on Canvas */
.hud-buttons {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 6;
    display: flex;
    gap: 10px;
}

.hud-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(16, 15, 30, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.hud-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.1);
    border-color: var(--neon-cyan);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}

.hud-btn svg {
    width: 18px;
    height: 18px;
    fill: #ffffff;
    transition: fill 0.2s ease;
}

.hud-btn:hover svg {
    fill: var(--neon-cyan);
}

/* Leaderboard Input Form on Game Over */
.leaderboard-form {
    width: 100%;
    max-width: 320px;
    margin-top: 15px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.form-input-container {
    display: flex;
    gap: 8px;
}

.form-input {
    flex-grow: 1;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 10px 14px;
    color: #fff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: border-color 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 8px rgba(0, 240, 255, 0.3);
}

.form-btn {
    background: var(--neon-cyan);
    color: #000;
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    text-transform: uppercase;
    border: none;
    border-radius: 8px;
    padding: 0 16px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.form-btn:hover {
    background: #fff;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
}

/* Floating HUD Score */
.score-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 6;
    background: rgba(16, 15, 30, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 8px 16px;
    border-radius: 12px;
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: 1.3rem;
    color: #fff;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    pointer-events: none;
}

.high-score-badge {
    position: absolute;
    top: 20px;
    left: 120px; /* offset next to score */
    z-index: 6;
    background: rgba(16, 15, 30, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 8px 14px;
    border-radius: 12px;
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.high-score-badge span {
    color: var(--neon-yellow);
    font-weight: 900;
}

/* Side Info Panel / Desktop Buttons */
.desktop-btn-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: auto;
}

.game-info-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 14px;
    font-size: 0.85rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.7);
}

.game-info-card strong {
    color: #fff;
}

/* Animations */
@keyframes neonPulseCyan {
    0%, 100% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.4); }
    50% { box-shadow: 0 0 25px rgba(0, 240, 255, 0.7); }
}

@keyframes neonPulsePink {
    0%, 100% { box-shadow: 0 0 15px rgba(255, 0, 127, 0.4); }
    50% { box-shadow: 0 0 25px rgba(255, 0, 127, 0.7); }
}

/* Responsive Rules */
@media (max-width: 1100px) {
    .app-container {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 480px;
    }
    
    .side-panel {
        height: auto;
        max-height: 400px;
    }
    
    .skins-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 520px) {
    body {
        padding: 10px;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    .app-container {
        max-width: 100%;
    }
    
    .game-container {
        width: 100%;
        height: 80vh;
        max-height: 560px;
    }
    
    .skins-container {
        grid-template-columns: 1fr;
    }
}