:root {
    --bg-lab: #0a0a0c;
    --sidebar-bg: #0f0f12;
    --header-bg: #141419;

    --accent-purple: #a855f7;
    --accent-glow: rgba(168, 85, 247, 0.4);

    --text-primary: #f0f0f0;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;

    --border: #27272a;
    --border-glow: #3f3f46;

    --card-bg: rgba(24, 24, 27, 0.7);
    --input-bg: #18181b;
}

body {
    background: var(--bg-lab) !important;
    color: var(--text-primary);
    overflow: hidden;
}

.forge-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.lab-nav {
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
    z-index: 100;
}

.forge-workspace {
    display: grid;
    grid-template-columns: 280px 1fr;
    flex-grow: 1;
    overflow: hidden;
}

/* Sidebar Styling */
.forge-sidebar {
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.5rem;
    overflow-y: auto;
}

.sidebar-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 700;
}

.section-header i {
    font-size: 1.25rem;
    color: var(--accent-purple);
}

/* Style Grid */
.style-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.style-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    padding: 1rem 0.5rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.style-card i {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.style-card span {
    font-size: 0.75rem;
    font-weight: 600;
}

.style-card:hover {
    border-color: var(--accent-purple);
    background: rgba(168, 85, 247, 0.05);
}

.style-card.active {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    color: white;
}

.style-card.active i {
    color: white;
}

/* Tuning Controls */
.tuning-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.control-item span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.control-item span.val {
    color: var(--accent-purple);
    font-weight: 700;
}

.control-item input {
    width: 100%;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
}

.m-stat {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border);
}

.m-stat span {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.m-stat strong {
    font-size: 0.7rem;
    font-family: 'JetBrains Mono', monospace;
}

/* Editor Main */
.forge-editor {
    display: grid;
    grid-template-rows: 1fr auto 1fr;
    padding: 1.5rem;
    gap: 1rem;
    background: radial-gradient(circle at center, #0e0e11 0%, #0a0a0c 100%);
}

.editor-pane {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.pane-header {
    background: rgba(255, 255, 255, 0.03);
    padding: 0.5rem 1rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

#forge-input {
    flex-grow: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 1rem;
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.6;
    resize: none;
    font-family: inherit;
}

.output-content {
    flex-grow: 1;
    padding: 1.5rem;
    color: var(--text-primary);
    line-height: 1.8;
    font-size: 1.1rem;
    overflow-y: auto;
}

.placeholder-msg {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.output-actions {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
}

/* Forge Divider */
.forge-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0.5rem 0;
}

.forge-divider::before {
    content: '';
    position: absolute;
    left: 0;
    width: 40%;
    height: 1px;
    background: var(--border);
}

.forge-divider::after {
    content: '';
    position: absolute;
    right: 0;
    width: 40%;
    height: 1px;
    background: var(--border);
}

.forge-btn {
    background: var(--accent-purple);
    border: none;
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 100px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 0 20px var(--accent-glow);
    transition: all 0.2s;
    z-index: 10;
}

.forge-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px var(--accent-glow);
}

/* Lab Badge */
.lab-badge {
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid var(--accent-purple);
    color: var(--accent-purple);
    padding: 4px 10px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pulse-icon {
    width: 6px;
    height: 6px;
    background: var(--accent-purple);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 var(--accent-glow); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 5px rgba(168, 85, 247, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(168, 85, 247, 0); }
}