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

    --accent-blue: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 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;
}

.lab-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;
}

.workspace-grid {
    display: grid;
    grid-template-columns: 320px 1fr 340px;
    flex-grow: 1;
    overflow: hidden;
}

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

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

.sidebar-header, .dashboard-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-header i, .dashboard-header i {
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.sidebar-header h3, .dashboard-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
}

.sidebar-header p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Chat Main */
.chat-main {
    display: flex;
    flex-direction: column;
    background: var(--bg-lab);
    position: relative;
    overflow-y: auto;
}

.chat-history {
    flex-grow: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.message {
    display: flex;
    gap: 1.25rem;
    animation: fadeIn 0.4s ease-out forwards;
}

.message .avatar {
    width: 40px;
    height: 40px;
    background: var(--accent-blue);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.message .content {
    line-height: 1.7;
    font-size: 1rem;
    color: var(--text-primary);
}

.message .content strong {
    color: var(--accent-blue);
}

.suggestions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.25rem;
}

.btn-suggestion {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-suggestion:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.05);
}

/* Input Area */
.input-area {
    padding: 1rem 2rem 2rem;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.input-container {
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.input-container:focus-within {
    border-color: var(--accent-glow);
    box-shadow: 0 0 15px var(--accent-glow);
}

#chat-input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    width: 100%;
    resize: none;
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.5;
}

.input-tools {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tool-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    padding: 0.25rem;
    cursor: pointer;
    border-radius: 6px;
    transition: background 0.2s;
}

.tool-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

.send-btn {
    background: var(--accent-blue);
    border: none;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: opacity 0.2s;
}

.send-btn:hover {
    opacity: 0.8;
}

.disclaimer {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.75rem;
}

/* Trace Content */
.trace-content {
    flex-grow: 1;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    padding: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    overflow-y: auto;
    border: 1px solid var(--border);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    gap: 1rem;
}

.empty-state i {
    font-size: 2rem;
}

/* Canvas Styling */
.canvas-container {
    height: 240px;
    background: black;
    border-radius: 12px;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

#neural-canvas {
    width: 100%;
    height: 100%;
}

.topology-stats {
    position: absolute;
    bottom: 0.75rem;
    left: 0.75rem;
    display: flex;
    gap: 1rem;
    background: rgba(0, 0, 0, 0.6);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.t-stat span {
    font-size: 0.6rem;
    color: var(--text-secondary);
    display: block;
    text-transform: uppercase;
}

.t-stat strong {
    font-size: 0.8rem;
    color: var(--accent-blue);
}

/* Parameters Card */
.parameters-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 1rem;
    border-radius: 12px;
}

.parameters-card h4 {
    margin: 0 0 1rem 0;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.param-row {
    margin-bottom: 1rem;
}

.param-row span {
    display: block;
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

.param-row input {
    width: 100%;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Badge styling */
.lab-badge {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    padding: 4px 10px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pulse-icon {
    width: 6px;
    height: 6px;
    background: var(--accent-blue);
    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(59, 130, 246, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
}