:root {
    --bg-color: #050505;
    --text-primary: #ffffff;
    --text-dim: #aaaaaa;
    --accent: #4ade80;
    --accent-hover: #22c55e;
    --danger: #ef4444;
    --danger-hover: #b91c1c;
    --panel-bg: rgba(15, 15, 20, 0.9);
    --panel-border: rgba(255, 255, 255, 0.1);
    
    --font-heading: 'Orbitron', 'Courier New', Courier, monospace;
    --font-body: 'Roboto', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-color);
    font-family: var(--font-body);
    color: var(--text-primary);
    user-select: none;
}

#game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    /* No blur, sharp pixels if we scale, though we will just render native resolution */
    image-rendering: pixelated;
}

/* UI Layer */
#ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; /* Let clicks pass through to canvas if needed */
    display: flex;
    flex-direction: column;
}

/* Top Bar */
#top-bar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 15px 30px;
    background: linear-gradient(to bottom, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
    pointer-events: auto;
    width: 100%;
}

.center-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 15px;
}

.header-title {
    font-family: var(--font-heading);
    font-size: 24px;
    letter-spacing: 4px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 5px;
}

#fly-winner-label {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 2px;
    margin-top: 8px;
    text-transform: uppercase;
    text-shadow: 0 0 10px currentColor; /* Inherits the dynamic color */
    animation: pulse 1s infinite alternate;
}

@keyframes pulse {
    from { opacity: 0.7; }
    to { opacity: 1.0; }
}

.top-side {
    display: flex;
    align-items: center;
    width: 300px; /* fixed width for perfect centering */
    position: absolute;
    top: 25px; /* align vertically with center content */
}

.top-side.left-side {
    justify-content: center;
    left: 25%;
    transform: translateX(-50%);
}

.top-side.right-side {
    justify-content: center;
    left: 75%;
    transform: translateX(-50%);
}

.top-right-controls {
    position: absolute;
    right: 30px;
    top: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    overflow: hidden;
}

.toggle-switch button {
    background: transparent;
    border: none;
    color: var(--text-dim);
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 0;
}

.toggle-switch button.active {
    background: var(--accent);
    color: #000;
}

/* Settings & Player Button */
#settings-btn, #multi-players-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 24px;
    cursor: pointer;
    transition: transform 0.3s ease, color 0.3s ease;
    padding: 5px;
}

#settings-btn:hover, #multi-players-btn:hover {
    color: var(--text-primary);
    transform: scale(1.1);
}

/* Center Messages */
#center-message, #end-game-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-width: 400px;
}

#center-message.has-bg, #end-game-message.has-bg {
    background: var(--panel-bg);
    padding: 40px 60px;
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

#main-message-text, #end-main-message-text {
    font-family: var(--font-heading);
    font-size: 48px;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
}

#sub-message-text, #end-sub-message-text {
    font-size: 18px;
    color: var(--text-dim);
}

/* Scoreboard */
#scoreboard-container {
    margin-top: 10px;
    background: rgba(0,0,0,0.3);
    border-radius: 8px;
    padding: 15px;
}

#scoreboard-container h2 {
    font-family: var(--font-heading);
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--text-dim);
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 5px;
}

#scoreboard-list {
    list-style: none;
    text-align: left;
    max-height: 200px;
    overflow-y: auto;
}

#scoreboard-list li {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-variant-numeric: tabular-nums;
    font-size: 14px;
}

#scoreboard-list li:last-child {
    border-bottom: none;
}

.score-rank { color: var(--text-dim); width: 25px; display: inline-block; }
.score-name { flex-grow: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.score-date { color: var(--text-dim); width: 100px; text-align: right; padding-right: 15px; font-size: 11px; }
.score-time { color: var(--accent); font-weight: bold; width: 80px; text-align: right; }

/* Boost Indicators */
.boost-container {
    position: absolute;
    bottom: 50px;
    width: 10px;
    height: 300px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--panel-border);
    border-radius: 5px;
    overflow: hidden;
    left: 20px; /* Player 2 Default (Left) */
}

.boost-container.right-side {
    left: auto;
    right: 20px; /* Player 1 (Right) */
}

.boost-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background-color: #facc15;
    transition: height 0.1s linear, opacity 0.3s;
    box-shadow: 0 0 10px #facc15;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    pointer-events: auto;
}

.modal-content {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 30px;
    width: 400px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
}

.modal-content h2 {
    font-family: var(--font-heading);
    margin-bottom: 25px;
    font-size: 24px;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-dim);
}

.form-group input {
    width: 100%;
    padding: 12px;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    color: white;
    font-family: var(--font-body);
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 30px;
}

hr {
    border: 0;
    height: 1px;
    background: var(--panel-border);
    margin: 25px 0;
}

/* Buttons */
button {
    font-family: var(--font-heading);
    cursor: pointer;
    border-radius: 6px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.2s ease;
}

.primary-btn {
    flex: 1;
    padding: 12px;
    background: var(--accent);
    color: #000;
    border: none;
}

.primary-btn:hover { background: var(--accent-hover); }

.secondary-btn {
    flex: 1;
    padding: 12px;
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--panel-border);
}

.secondary-btn:hover {
    background: rgba(255,255,255,0.05);
    color: white;
}

.danger-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
}

.danger-btn:hover {
    background: var(--danger);
    color: white;
}

#restart-btn {
    padding: 15px 30px;
    background: var(--accent);
    color: #000;
    border: none;
    font-size: 18px;
    margin-top: 20px;
}

#restart-btn:hover {
    background: var(--accent-hover);
    transform: scale(1.05);
}

/* Utility Classes */
.hidden { display: none !important; }
.text-center { text-align: center; }
.mb-2 { margin-bottom: 15px; }
.mt-2 { margin-top: 15px; }
.text-accent { color: var(--accent); }
.text-dim { color: var(--text-dim); }

/* Multiplayer Live Components */
#countdown-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 50;
}

#countdown-text {
    font-family: var(--font-heading);
    font-size: 150px;
    color: var(--accent);
    text-shadow: 0 0 40px var(--accent);
    animation: pulseScale 0.5s infinite alternate;
}

@keyframes pulseScale {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}

#live-leaderboard {
    position: absolute;
    right: 20px;
    top: 30%;
    width: 200px;
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 15px;
    pointer-events: none;
}

#live-leaderboard h3 {
    font-family: var(--font-heading);
    font-size: 14px;
    color: var(--text-dim);
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 5px;
    margin-bottom: 10px;
}

#live-leaderboard-list {
    list-style: none;
}

#live-leaderboard-list li {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    padding: 4px 0;
}

.player-list-box {
    background: rgba(0,0,0,0.5);
    border: 1px inset var(--panel-border);
    border-radius: 4px;
    max-height: 200px;
    overflow-y: auto;
    padding: 10px;
    text-align: left;
}

.player-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.kick-btn {
    background: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
    font-size: 10px;
    padding: 2px 6px;
    cursor: pointer;
}
.kick-btn:hover { background: var(--danger); color: white; }