:root {
    --bg-dark: #0f1115;
    --bg-panel: rgba(20, 24, 30, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --accent-primary: #6366f1;
    --accent-hover: #818cf8;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --font-ui: 'Inter', sans-serif;
    --font-pixel: 'Press Start 2P', cursive;
}

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

body {
    font-family: var(--font-ui);
    background-color: var(--bg-dark);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 20%);
}

.app-container {
    display: flex;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    gap: 2rem;
}

/* --- Left Panel: Preview --- */
.preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
}

.canvas-wrapper {
    background: #1a1e25;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    /* Pixel Perfect Scaling */
    image-rendering: pixelated; 
}

canvas {
    display: block;
    width: 640px; /* Scaled up by CSS */
    height: 360px;
    background: #252a33; /* Canvas bg */
    border-radius: 4px;
}

.preview-controls {
    display: flex;
    gap: 1rem;
}

/* --- Right Panel: UI --- */
.controls-panel {
    flex: 0 0 450px;
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.controls-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.controls-header h1 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

#charNameInput {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: 6px;
    color: white;
    font-size: 1.25rem;
    font-family: var(--font-ui);
    outline: none;
    transition: border-color 0.2s;
}

#charNameInput:focus {
    border-color: var(--accent-primary);
}

/* Navigation Tabs */
.tabs-nav {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    padding: 0 0.5rem;
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 1rem 0.5rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
}

.tab-btn:hover {
    color: var(--text-main);
}

.tab-btn.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

/* Tab Content */
.tab-content-container {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    position: relative;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.control-group {
    margin-bottom: 1.5rem;
}

.control-group label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

/* Generic Selectors (Buttons) */
.selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.selector-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.5rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.selector-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.selector-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* Palette Circles */
.palette {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.palette-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
}

.palette-btn:hover {
    transform: scale(1.1);
}

.palette-btn.active {
    border-color: white;
    transform: scale(1.1);
    box-shadow: 0 0 0 2px var(--accent-primary);
}

/* Origin Cards */
.origin-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 0.5rem;
    transition: all 0.2s;
}

.origin-card:hover {
    border-color: var(--text-muted);
}

.origin-card.active {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.origin-card h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.origin-details {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(0,0,0,0.2);
    border-radius: 6px;
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--text-muted);
}

/* Footer Controls */
.controls-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
}

.btn {
    flex: 1;
    padding: 0.8rem;
    border-radius: 8px;
    border: none;
    font-family: var(--font-ui);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

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

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

.btn.secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 900px) {
    .app-container {
        flex-direction: column;
        overflow-y: auto;
    }
    .preview-panel {
        flex: 0 0 auto;
    }
    .controls-panel {
        flex: 1;
    }
}

/* --- Game View --- */
.game-container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    background-color: #000;
}

#gameCanvas {
    width: 960px; /* 480 * 2 */
    height: 540px; /* 270 * 2 */
    background: #111;
    image-rendering: pixelated;
    box-shadow: 0 0 50px rgba(0,0,0,0.8);
    border: 1px solid #333;
}

.game-ui {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    padding: 2rem;
}

/* Stats */
.player-stats {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 200px;
}

.stat-bar {
    display: flex;
    align-items: center;
    margin-bottom: 5px;
    background: rgba(0,0,0,0.5);
    padding: 2px;
    border-radius: 4px;
}

.stat-bar .label {
    width: 30px;
    font-size: 0.7rem;
    font-weight: bold;
    color: #fff;
    text-align: center;
}

.bar-fill {
    height: 8px;
    border-radius: 2px;
}

.bar-fill.hp { background: #ef4444; }
.bar-fill.sp { background: #3b82f6; }

/* Dialogue */
.dialogue-box {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    background: rgba(15, 23, 42, 0.95);
    border: 2px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 8px;
    color: #fff;
    pointer-events: auto;
    font-family: var(--font-pixel);
    font-size: 0.8rem;
    line-height: 1.6;
}

.dialogue-box h3 {
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    font-size: 0.7rem;
    text-transform: uppercase;
}

.dialogue-options {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.dialogue-option-btn {
    background: rgba(255,255,255,0.1);
    border: 1px solid transparent;
    padding: 0.5rem;
    color: #eee;
    text-align: left;
    cursor: pointer;
    font-family: var(--font-ui);
    font-size: 0.9rem;
}

.dialogue-option-btn:hover {
    background: var(--accent-primary);
    color: #fff;
}