:root {
    --bg-dark: #090a0f;
    --bg-panel: #141721;
    --bg-terminal: #0f1118;
    --text-main: #c9d1d9;
    --text-dim: #8b949e;
    --accent-green: #3fb950;
    --accent-red: #f85149;
    --accent-yellow: #d29922;
    --accent-blue: #58a6ff;
    --accent-orange: #f0883e;
    --border-color: #30363d;
    --font-ui: 'Inter', system-ui, sans-serif;
    --font-mono: 'Fira Code', 'Courier New', monospace;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-ui);
    height: 100vh;
    overflow: hidden;
    display: flex;
}

.text-green { color: var(--accent-green); }
.text-red { color: var(--accent-red); }
.text-yellow { color: var(--accent-yellow); }
.text-blue { color: var(--accent-blue); }
.text-orange { color: var(--accent-orange); }
.text-dim { color: var(--text-dim); }

.fill-green { background-color: var(--accent-green); }
.fill-red { background-color: var(--accent-red); }
.fill-yellow { background-color: var(--accent-yellow); }
.fill-blue { background-color: var(--accent-blue); }

.app-container {
    display: grid;
    grid-template-columns: 280px 1fr 280px;
    gap: 1rem;
    width: 100%;
    height: 100%;
    padding: 1rem;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
}

.panel {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.panel h2 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.stat-group {
    margin-bottom: 1rem;
}

.stat-group.small {
    margin-bottom: 0.5rem;
}

.stat-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 600;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background-color: var(--bg-dark);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.progress-fill {
    height: 100%;
    transition: width 0.3s ease;
}

.entity {
    margin-bottom: 1.25rem;
}

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

.entity-stat {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.alert-list {
    list-style: none;
    font-size: 0.85rem;
}

.alert-list li {
    margin-bottom: 0.5rem;
    padding-left: 10px;
    border-left: 2px solid var(--accent-red);
}

.terminal-area {
    background-color: var(--bg-terminal);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 0 20px rgba(0,0,0,0.8) inset;
    position: relative;
    overflow: hidden;
}

.terminal-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    background: linear-gradient(180deg, rgba(20,23,33,1) 0%, rgba(15,17,24,1) 100%);
}

.terminal-header h1 {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    letter-spacing: 2px;
    color: var(--text-main);
}

.terminal-header .subtitle {
    font-size: 0.75rem;
    color: var(--text-dim);
}

.terminal-output {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.terminal-input-wrapper {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-panel);
}

.prompt-symbol {
    font-family: var(--font-mono);
    color: var(--accent-blue);
    font-weight: bold;
    margin-right: 0.75rem;
}

#cmd-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-main);
    font-family: var(--font-mono);
    font-size: 1rem;
    outline: none;
}

#cmd-input::placeholder {
    color: var(--text-dim);
    opacity: 0.5;
}

/* Specific text styles for mud output */
.mud-room-title {
    color: var(--accent-blue);
    font-weight: bold;
    margin-top: 1rem;
}
.mud-desc {
    color: var(--text-main);
    margin-bottom: 0.5rem;
}
.mud-action {
    color: var(--accent-green);
}
.mud-error {
    color: var(--accent-red);
}
.mud-system {
    color: var(--accent-yellow);
    font-style: italic;
}
.mud-input-echo {
    color: var(--text-dim);
    margin-top: 0.5rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    body {
        height: auto;
        overflow: auto;
    }

    .app-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto minmax(60vh, 1fr) auto;
        height: auto;
    }
    
    .terminal-area {
        min-height: 60vh;
    }

    .sidebar {
        border-right: none;
        border-left: none;
        border-bottom: 1px solid var(--border-color);
    }
}

/* --- THEME: CRT RETRO --- */
body.theme-crt {
    --text-main: #33ff00;
    --text-dim: #1a8000;
    --accent-blue: #33ff00;
    --accent-green: #33ff00;
    --accent-red: #ff3333;
    --accent-yellow: #ffff33;
    text-shadow: 0 0 5px rgba(51, 255, 0, 0.5);
}

body.theme-crt::after {
    content: " ";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(
        rgba(18, 16, 16, 0) 50%, 
        rgba(0, 0, 0, 0.25) 50%
    ), linear-gradient(
        90deg, 
        rgba(255, 0, 0, 0.06), 
        rgba(0, 255, 0, 0.02), 
        rgba(0, 0, 255, 0.06)
    );
    z-index: 999;
    background-size: 100% 4px, 6px 100%;
    pointer-events: none;
}

body.theme-crt .terminal-container {
    box-shadow: inset 0 0 100px rgba(0,0,0,0.9);
    border-radius: 12px;
}

/* Snappy text entrance animation */
@keyframes textAppear {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}
#output div {
    animation: textAppear 0.15s ease-out forwards;
}