:root {
    /* Brand & Primary Hues */
    --lincs-primary: #4f46e5;
    --lincs-primary-hover: #4338ca;
    --lincs-primary-light: #eef2ff;
    --lincs-primary-glow: rgba(79, 70, 229, 0.25);
    
    /* Vibrant Accents */
    --lincs-secondary: #06b6d4;
    --lincs-secondary-light: #ecfeff;
    --lincs-success: #10b981;
    --lincs-success-light: #ecfdf5;
    --lincs-warning: #f59e0b;
    --lincs-warning-light: #fffbeb;
    --lincs-danger: #f43f5e;
    --lincs-danger-light: #fff1f2;
    --lincs-purple: #8b5cf6;
    --lincs-purple-light: #f5f3ff;

    /* Dark Surfaces */
    --lincs-dark: #0b0f19;
    --lincs-dark-sidebar: #0e1322;
    --lincs-dark-surface: #151d30;
    --lincs-dark-border: rgba(255, 255, 255, 0.08);

    /* Light Theme Surfaces & Neutral Tones */
    --lincs-bg: #f8fafc;
    --lincs-card-bg: #ffffff;
    --lincs-border: #e2e8f0;
    --lincs-border-subtle: #f1f5f9;
    --lincs-text-main: #0f172a;
    --lincs-text-muted: #64748b;
    --lincs-text-light: #94a3b8;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Advanced Shadows */
    --shadow-2xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-xs: 0 2px 4px rgba(15, 23, 42, 0.05);
    --shadow-sm: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 10px 15px -3px rgba(15, 23, 42, 0.06), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    --shadow-glow-primary: 0 8px 24px -4px rgba(79, 70, 229, 0.35);
    --shadow-glow-success: 0 8px 24px -4px rgba(16, 185, 129, 0.35);

    /* Smooth Transitions */
    --transition-fast: all 0.15s ease;
    --transition-normal: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Global Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--lincs-bg);
    color: var(--lincs-text-main);
    margin: 0;
    padding: 0;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, .brand-font {
    font-family: var(--font-heading);
    letter-spacing: -0.02em;
    font-weight: 700;
    color: var(--lincs-text-main);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Dashboard Shell Layout */
.lincs-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--lincs-bg);
}

/* Sidebar Navigation */
.lincs-sidebar {
    width: 270px;
    background: linear-gradient(180deg, var(--lincs-dark-sidebar) 0%, #080c16 100%);
    color: #ffffff;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1000;
    border-right: 1px solid var(--lincs-dark-border);
    transition: var(--transition-normal);
}

.lincs-brand {
    padding: 1.5rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    border-bottom: 1px solid var(--lincs-dark-border);
    background: rgba(255, 255, 255, 0.02);
}

.lincs-brand-icon-box {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.lincs-brand-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: #ffffff;
    margin: 0;
    text-decoration: none;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.lincs-brand-badge {
    font-size: 0.65rem;
    background: rgba(79, 70, 229, 0.2);
    border: 1px solid rgba(79, 70, 229, 0.4);
    color: #a5b4fc;
    padding: 2px 7px;
    border-radius: 6px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.lincs-tenant-card {
    margin: 1rem 1rem 0.5rem;
    padding: 0.85rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    backdrop-filter: blur(8px);
}

.lincs-tenant-status-dot {
    width: 8px;
    height: 8px;
    background: var(--lincs-success);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--lincs-success);
    position: relative;
    flex-shrink: 0;
}

.lincs-tenant-status-dot::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    border-radius: 50%;
    background: inherit;
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(2.5); opacity: 0; }
}

.lincs-nav {
    padding: 0.75rem 0.85rem;
    flex-grow: 1;
    overflow-y: auto;
}

.lincs-nav-header {
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #475569;
    padding: 1.25rem 0.75rem 0.4rem;
}

.lincs-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem 0.85rem;
    color: #94a3b8;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.88rem;
    border-radius: 10px;
    margin-bottom: 3px;
    transition: var(--transition-fast);
    position: relative;
}

.lincs-nav-link-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.lincs-nav-link i {
    width: 18px;
    height: 18px;
    transition: transform 0.2s ease;
}

.lincs-nav-link:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.06);
    transform: translateX(2px);
}

.lincs-nav-link:hover i {
    transform: scale(1.1);
}

.lincs-nav-link.active {
    color: #ffffff;
    background: linear-gradient(90deg, rgba(79, 70, 229, 0.9) 0%, rgba(99, 102, 241, 0.75) 100%);
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
    font-weight: 600;
}

.lincs-nav-link.active i {
    color: #ffffff;
}

.lincs-nav-link-badge {
    font-size: 0.7rem;
    padding: 2px 7px;
    border-radius: 9999px;
    font-weight: 700;
}

/* Main Content Workspace */
.lincs-main {
    flex-grow: 1;
    margin-left: 270px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--lincs-bg);
}

/* Sticky Topbar */
.lincs-topbar {
    height: 72px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--lincs-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 900;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.lincs-content {
    padding: 2rem;
    flex-grow: 1;
}

/* Hero / Welcome Banner */
.hero-intelligence-card {
    background: linear-gradient(135deg, #0b0f19 0%, #1e1b4b 55%, #312e81 100%);
    border-radius: 1.25rem;
    box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.2), 0 8px 10px -6px rgba(15, 23, 42, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    overflow: hidden;
}

.hero-intelligence-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
    pointer-events: none;
}

/* Metric / Stat Cards */
.stat-card {
    background: #ffffff;
    border: 1px solid var(--lincs-border);
    border-radius: 1.15rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: transparent;
    transition: background 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.stat-card.primary:hover::before { background: var(--lincs-primary); }
.stat-card.danger:hover::before { background: var(--lincs-danger); }
.stat-card.info:hover::before { background: var(--lincs-secondary); }
.stat-card.warning:hover::before { background: var(--lincs-warning); }

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
    transition: transform 0.25s ease;
}

.stat-card:hover .stat-card-icon {
    transform: scale(1.08) rotate(2deg);
}

.stat-card-icon.primary {
    background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
    color: var(--lincs-primary);
    box-shadow: 0 4px 10px rgba(79, 70, 229, 0.15);
}

.stat-card-icon.danger {
    background: linear-gradient(135deg, #fff1f2 0%, #ffe4e6 100%);
    color: var(--lincs-danger);
    box-shadow: 0 4px 10px rgba(244, 63, 94, 0.15);
}

.stat-card-icon.info {
    background: linear-gradient(135deg, #ecfeff 0%, #cffafe 100%);
    color: #0891b2;
    box-shadow: 0 4px 10px rgba(6, 182, 212, 0.15);
}

.stat-card-icon.warning {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    color: #d97706;
    box-shadow: 0 4px 10px rgba(245, 158, 11, 0.15);
}

/* Glass & Card Containers */
.card-premium {
    background: #ffffff;
    border: 1px solid var(--lincs-border);
    border-radius: 1.15rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.card-premium:hover {
    box-shadow: var(--shadow-md);
}

/* Data Tables */
.table-premium {
    width: 100%;
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
}

.table-premium thead th {
    background-color: #f8fafc;
    color: #475569;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 1rem 1.25rem;
    border-top: none;
    border-bottom: 1px solid var(--lincs-border);
}

.table-premium thead th:first-child {
    border-top-left-radius: 12px;
}
.table-premium thead th:last-child {
    border-top-right-radius: 12px;
}

.table-premium tbody td {
    padding: 1rem 1.25rem;
    vertical-align: middle;
    border-bottom: 1px solid #f1f5f9;
    color: var(--lincs-text-main);
    font-size: 0.88rem;
    transition: background 0.15s ease;
}

.table-premium tbody tr:hover td {
    background-color: #f8fafc;
}

.table-premium tbody tr:last-child td {
    border-bottom: none;
}

/* Intent & Status Badges */
.badge-intent-high {
    background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
    color: #ffffff;
    font-weight: 700;
    box-shadow: 0 2px 6px rgba(244, 63, 94, 0.3);
    letter-spacing: 0.03em;
}

.badge-intent-medium {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #ffffff;
    font-weight: 700;
    box-shadow: 0 2px 6px rgba(245, 158, 11, 0.3);
    letter-spacing: 0.03em;
}

.badge-intent-low {
    background: linear-gradient(135deg, #06b6d4 0%, #0284c7 100%);
    color: #ffffff;
    font-weight: 700;
    box-shadow: 0 2px 6px rgba(6, 182, 212, 0.3);
    letter-spacing: 0.03em;
}

/* Diagnostic Recommendation Cards */
.rec-box-card {
    background: #ffffff;
    border: 1px solid var(--lincs-border);
    border-radius: 1.15rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
    border-left: 5px solid var(--lincs-primary);
}

.rec-box-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.rec-box-card.impact-critical {
    border-left-color: var(--lincs-danger);
}
.rec-box-card.impact-high {
    border-left-color: var(--lincs-warning);
}
.rec-box-card.impact-medium {
    border-left-color: var(--lincs-secondary);
}

.rec-diagnostic-box {
    background: #fff8f8;
    border: 1px solid #fee2e2;
    border-radius: 0.75rem;
    padding: 1rem 1.15rem;
}

.rec-action-box {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 0.75rem;
    padding: 1rem 1.15rem;
}

/* Audience Cohort Card */
.cohort-card {
    background: #ffffff;
    border: 1px solid var(--lincs-border);
    border-radius: 1.15rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.cohort-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.cohort-gauge-bar {
    height: 8px;
    background: #e2e8f0;
    border-radius: 9999px;
    overflow: hidden;
    margin: 0.75rem 0 1.25rem;
}

.cohort-gauge-fill {
    height: 100%;
    background: linear-gradient(90deg, #4f46e5 0%, #06b6d4 100%);
    border-radius: 9999px;
    transition: width 1s ease-in-out;
}

/* Code Syntax & Snippet Boxes */
.code-snippet-container {
    background: #0f172a;
    border-radius: 12px;
    border: 1px solid #1e293b;
    overflow: hidden;
    position: relative;
}

.code-snippet-header {
    background: #1e293b;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.copy-btn {
    background: rgba(255, 255, 255, 0.1);
    color: #e2e8f0;
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.75rem;
    border-radius: 6px;
    padding: 4px 10px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 4px;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

/* Live Stream Pulsing Pill */
.live-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 0.75rem;
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.live-pill-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    position: relative;
}

.live-pill-dot::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    border-radius: 50%;
    background: inherit;
    animation: live-pulse 1.8s infinite;
}

@keyframes live-pulse {
    0% { transform: scale(1); opacity: 0.9; }
    70% { transform: scale(3); opacity: 0; }
    100% { transform: scale(3); opacity: 0; }
}

/* Modern Buttons */
.btn-primary {
    background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
    border: none;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
    transition: var(--transition-normal);
}

.btn-primary:hover, .btn-primary:focus {
    background: linear-gradient(135deg, #4338ca 0%, #3730a3 100%);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
    transform: translateY(-1px);
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    border: none;
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
    transition: var(--transition-normal);
}

.btn-warning:hover, .btn-warning:focus {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    box-shadow: 0 6px 16px rgba(245, 158, 11, 0.4);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: none;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
    transition: var(--transition-normal);
}

.btn-success:hover, .btn-success:focus {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
    transform: translateY(-1px);
}

/* Inputs & Form Styling */
.form-control, .form-select {
    border-radius: 10px;
    border: 1px solid var(--lincs-border);
    padding: 0.7rem 1rem;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    border-color: var(--lincs-primary);
    box-shadow: 0 0 0 3px var(--lincs-primary-glow);
}

/* Mobile Responsive */
@media (max-width: 991.98px) {
    .lincs-sidebar {
        transform: translateX(-100%);
    }
    .lincs-sidebar.active {
        transform: translateX(0);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }
    .lincs-main {
        margin-left: 0;
    }
    .lincs-content {
        padding: 1.25rem;
    }
    .lincs-topbar {
        padding: 0 1.25rem;
    }
}