/* ============================================================
   Collab - Collaborative Compliance, Risk & Response Platform
   Global Stylesheet
   ============================================================ */

:root {
    /* Dark Theme - Collab Identity */
    --bg-primary: #060a0e;
    --bg-secondary: #0c1218;
    --bg-card: #141c24;
    --bg-card-hover: #1a2430;
    --bg-elevated: #1e2a36;
    --bg-surface: #0e1620;

    /* Text */
    --text-primary: #e8edf4;
    --text-secondary: #8b9bb4;
    --text-muted: #5a6a7e;

    /* Accent Colors - Emerald/Teal Identity */
    --accent-primary: #10b981;
    --accent-secondary: #06b6d4;
    --accent-tertiary: #3b82f6;
    --gradient-primary: linear-gradient(135deg, #10b981 0%, #06b6d4 50%, #3b82f6 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(16, 185, 129, 0.12) 0%, rgba(6, 182, 212, 0.12) 100%);

    /* Status Colors */
    --green: #22c55e;
    --amber: #f59e0b;
    --red: #ef4444;
    --blue: #3b82f6;
    --purple: #8b5cf6;
    --cyan: #06b6d4;
    --orange: #f97316;

    /* Glows */
    --glow-primary: rgba(16, 185, 129, 0.15);
    --glow-secondary: rgba(6, 182, 212, 0.15);
    --glow-blue: rgba(59, 130, 246, 0.15);
    --glow-red: rgba(239, 68, 68, 0.15);

    /* Borders */
    --border-color: rgba(255, 255, 255, 0.06);
    --border-subtle: #1e2a36;
    --border-panel: #2a3a4a;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    /* Transitions */
    --transition: 0.2s ease;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--accent-secondary);
}

/* ============================================================
   Background Pattern
   ============================================================ */
.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

/* ============================================================
   Container
   ============================================================ */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* ============================================================
   Navigation (Public Site)
   ============================================================ */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 16px 0;
    background: rgba(6, 10, 14, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    background: var(--gradient-primary);
    color: #fff !important;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    transition: opacity var(--transition), transform var(--transition);
}

.nav-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    color: #fff !important;
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
    padding: 160px 0 100px;
    text-align: center;
}

.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}

.hero h1 .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.hero .cta-btn {
    display: inline-flex;
    align-items: center;
    padding: 14px 36px;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    transition: opacity var(--transition), transform var(--transition);
    box-shadow: 0 4px 24px var(--glow-primary);
}

.hero .cta-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    color: #fff;
}

/* Status indicators */
.status-bar {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 32px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.status-led {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
    animation: pulse-led 2s infinite;
}

.status-led.amber {
    background: var(--amber);
    box-shadow: 0 0 8px var(--amber);
}

@keyframes pulse-led {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ============================================================
   Section Layout
   ============================================================ */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================================
   Process Steps
   ============================================================ */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.process-step {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    transition: border-color var(--transition), transform var(--transition);
}

.process-step:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.step-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    font-family: 'JetBrains Mono', monospace;
}

.process-step h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.process-step p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================================
   Feature Cards
   ============================================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: border-color var(--transition), transform var(--transition);
}

.feature-card:hover {
    border-color: var(--accent-secondary);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-subtle);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1.3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================================
   Audience Grid
   ============================================================ */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.audience-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
    transition: border-color var(--transition), transform var(--transition);
}

.audience-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

.audience-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.audience-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.audience-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================================
   Integrations Grid
   ============================================================ */
.integrations-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.integration-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    transition: border-color var(--transition), transform var(--transition);
}

.integration-category:hover {
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

.integration-category h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 14px;
    color: var(--text-primary);
}

.integration-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.integration-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: border-color var(--transition);
}

.integration-item:hover {
    border-color: var(--accent-secondary);
    color: var(--text-primary);
}

.integration-icon {
    font-size: 0.85rem;
}

.integration-category p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ============================================================
   Stats Bar
   ============================================================ */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 48px 0;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 2.4rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: 'JetBrains Mono', monospace;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ============================================================
   Footer (Public)
   ============================================================ */
footer {
    padding: 48px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-brand {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.footer-brand span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

footer p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 16px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.footer-links a:hover {
    color: var(--accent-primary);
}

/* ============================================================
   Scroll Reveal Animation
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .audience-grid { grid-template-columns: repeat(2, 1fr); }
    .integrations-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .hero { padding: 120px 0 60px; }
    .section { padding: 60px 0; }
    .section-title { font-size: 1.8rem; }
    .nav-links { display: none; }
    .process-grid { grid-template-columns: 1fr; gap: 16px; }
    .features-grid { grid-template-columns: 1fr; }
    .feature-card { padding: 20px; }
    .audience-grid { grid-template-columns: repeat(2, 1fr); }
    .integrations-grid { grid-template-columns: 1fr; gap: 16px; }
    .stats-bar { grid-template-columns: repeat(2, 1fr); }
    .status-bar { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero { padding: 100px 0 40px; }
    .hero h1 { font-size: 1.8rem; }
    .hero p { font-size: 1rem; }
    .section { padding: 48px 0; }
    .section-title { font-size: 1.5rem; }
    .section-subtitle { font-size: 0.9rem; }
    .process-step { padding: 20px 16px; }
    .step-number { font-size: 1.6rem; }
    .audience-grid { grid-template-columns: 1fr; }
    .stats-bar { grid-template-columns: 1fr; gap: 20px; }
}