:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --sidebar-bg: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Narrative Panel (Sidebar) */
.narrative-panel {
    width: 380px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 2rem;
    overflow-y: auto;
}

.header {
    margin-bottom: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.025em;
}

.badge-demo {
    display: inline-block;
    background: #eff6ff;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin-top: 0.25rem;
}

.steps-nav {
    margin-bottom: 2rem;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.step-item.active {
    color: var(--text-main);
}

.step-number {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    border: 1px solid var(--border);
}

.step-item.active .step-number {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.narrative-content {
    flex: 1;
}

.narrative-content h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.narrative-content p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.customer-quote {
    background: #f1f5f9;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-style: italic;
    color: var(--text-main);
    margin: 1.5rem 0;
    border-left: 4px solid var(--primary);
}

.narrative-footer {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Main Content Panel */
.live-data-panel {
    flex: 1;
    padding: 2.5rem;
    overflow-y: auto;
}

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

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

/* Cards & UI Components */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.card-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-item .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.stat-item .value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-primary { background: #dbeafe; color: #1e40af; }

/* Buttons */
.btn {
    padding: 0.625rem 1.25rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s;
}

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

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

.btn-secondary {
    background: white;
    border-color: var(--border);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: var(--bg-main);
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Confidence Gauge */
.confidence-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.confidence-bar-bg {
    flex: 1;
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.confidence-bar-fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.5s ease-out;
}

/* Form controls */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.input-control {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.875rem;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 1.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-event {
    position: relative;
    margin-bottom: 1.5rem;
}

.timeline-dot {
    position: absolute;
    left: -1.5rem;
    top: 0.25rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid white;
    transform: translateX(-4px);
}

.timeline-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.timeline-title {
    font-size: 0.875rem;
    font-weight: 600;
}

.timeline-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Comparison View */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.diff-card {
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.diff-card.before { background: #f8fafc; }
.diff-card.after { background: #fff7ed; border-color: #fdba74; }

.diff-card .label {
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

/* Checklist */
.checklist {
    list-style: none;
}

.checklist li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.checklist li::before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
}

.checklist li.restricted::before {
    content: '×';
    color: var(--danger);
}

/* Toast Notification */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 9999;
}

.toast {
    background: #1e293b;
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast-icon {
    width: 1.25rem;
    height: 1.25rem;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
}

.toast-content {
    font-size: 0.875rem;
}