/* FixAtlas AI - Main Stylesheet */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #0f172a;
    --accent: #06b6d4;
    --text: #334155;
    --text-light: #64748b;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --border: #e2e8f0;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 { color: var(--secondary); line-height: 1.2; }
h1 { font-size: 3.5rem; font-weight: 700; }
h2 { font-size: 2.5rem; font-weight: 600; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.125rem; font-weight: 500; }

.highlight { color: var(--primary); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

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

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

.btn-white:hover {
    background: var(--bg-alt);
}

.btn-outline-white {
    border: 2px solid white;
    color: white;
    background: transparent;
}

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

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    border-bottom: 1px solid var(--border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon { font-size: 1.75rem; }
.logo-text { color: var(--secondary); }
.logo .ai { color: var(--primary); }

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.3s;
}

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

.nav-buttons {
    display: flex;
    gap: 12px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--bg-alt) 0%, var(--bg) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 { margin-bottom: 24px; }

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Knowledge Graph Animation */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.knowledge-graph {
    position: relative;
    width: 400px;
    height: 400px;
}

.node {
    position: absolute;
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    animation: float 3s ease-in-out infinite;
}

.node-center {
    width: 80px;
    height: 80px;
    font-size: 2rem;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--primary);
    z-index: 2;
}

.node-1 { top: 10%; left: 50%; transform: translateX(-50%); animation-delay: 0.5s; }
.node-2 { top: 30%; right: 10%; animation-delay: 1s; }
.node-3 { bottom: 30%; right: 10%; animation-delay: 1.5s; }
.node-4 { bottom: 10%; left: 50%; transform: translateX(-50%); animation-delay: 2s; }
.node-5 { top: 30%; left: 10%; animation-delay: 2.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.node-center { animation: pulse 2s ease-in-out infinite; }

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4); }
    50% { box-shadow: 0 0 0 20px rgba(37, 99, 235, 0); }
}

/* Sections */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 60px;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 48px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.cta-center {
    text-align: center;
}

/* Industries */
.industries {
    background: var(--bg-alt);
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
}

.industry-card {
    background: white;
    padding: 32px 16px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.industry-card:hover {
    border-color: var(--primary);
}

.industry-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 12px;
}

.industry-card h4 {
    font-size: 0.95rem;
    color: var(--text);
}

/* Testimonials */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.testimonial-text {
    font-size: 1.125rem;
    font-style: italic;
    margin-bottom: 24px;
    color: var(--text);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-info strong {
    display: block;
    color: var(--secondary);
}

.author-info span {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    color: white;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* Footer */
.footer {
    background: var(--secondary);
    color: white;
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 16px;
    font-size: 0.95rem;
}

.footer-brand .domain {
    color: var(--accent);
    font-weight: 500;
}

.footer-brand .logo-text { color: white; }

.footer-links h4 {
    color: white;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
}

.footer-legal a:hover {
    color: white;
}

/* Page Headers */
.page-header {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, var(--bg-alt) 0%, var(--bg) 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 2.75rem;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Forms */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Cards */
.card {
    background: white;
    border-radius: 16px;
    border: 1px solid var(--border);
    padding: 32px;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Pricing Cards */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.pricing-card {
    background: white;
    border-radius: 16px;
    border: 1px solid var(--border);
    padding: 40px;
    text-align: center;
    position: relative;
}

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
}

.pricing-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.pricing-card h3 {
    margin-bottom: 8px;
}

.pricing-card .price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    margin: 24px 0;
}

.pricing-card .price span {
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 400;
}

.pricing-card ul {
    list-style: none;
    text-align: left;
    margin: 32px 0;
}

.pricing-card li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.pricing-card li::before {
    content: '✓';
    color: var(--success);
    margin-right: 12px;
    font-weight: 600;
}

/* About Page */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 16px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.team-card {
    text-align: center;
}

.team-avatar {
    width: 120px;
    height: 120px;
    background: var(--bg-alt);
    border-radius: 50%;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.team-card h4 {
    margin-bottom: 4px;
}

.team-card span {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    padding: 40px;
    background: var(--bg-alt);
    border-radius: 16px;
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-item-icon {
    font-size: 1.5rem;
}

.contact-item h4 {
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--text-light);
}

/* Login Page */
.auth-container {
    max-width: 440px;
    margin: 0 auto;
    padding: 40px;
}

.auth-card {
    background: white;
    border-radius: 16px;
    border: 1px solid var(--border);
    padding: 48px;
}

.auth-card h2 {
    text-align: center;
    margin-bottom: 8px;
}

.auth-card .subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 32px;
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: 24px 0;
    color: var(--text-light);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.auth-divider span {
    padding: 0 16px;
    font-size: 0.875rem;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-light);
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
}

/* Docs Page */
.docs-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 60px;
}

.docs-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.docs-sidebar ul {
    list-style: none;
}

.docs-sidebar li {
    margin-bottom: 8px;
}

.docs-sidebar a {
    display: block;
    padding: 10px 16px;
    color: var(--text);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
}

.docs-sidebar a:hover,
.docs-sidebar a.active {
    background: var(--bg-alt);
    color: var(--primary);
}

.docs-content h2 {
    margin-top: 48px;
    margin-bottom: 16px;
}

.docs-content p {
    margin-bottom: 16px;
}

.docs-content code {
    background: var(--bg-alt);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

.docs-content pre {
    background: var(--secondary);
    color: white;
    padding: 24px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 24px 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .industry-grid { grid-template-columns: repeat(3, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; }
    .pricing-card.featured { transform: none; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .nav-links, .nav-buttons { display: none; }
    .mobile-menu-btn { display: block; }
    
    .hero .container { grid-template-columns: 1fr; text-align: center; }
    .hero-subtitle { margin: 0 auto 32px; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { display: none; }
    
    .features-grid { grid-template-columns: 1fr; }
    .industry-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonial-grid { grid-template-columns: 1fr; }
    
    .about-content { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .docs-layout { grid-template-columns: 1fr; }
    .docs-sidebar { position: static; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    
    .cta-buttons { flex-direction: column; }
}

/* Mobile Menu */
.nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    padding: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-4 { margin-top: 32px; }
.mb-4 { margin-bottom: 32px; }
.py-4 { padding-top: 32px; padding-bottom: 32px; }

/* Blog Cards */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.blog-card {
    background: white;
    border-radius: 16px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.blog-card-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.blog-card-content {
    padding: 24px;
}

.blog-card-meta {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 12px;
}

.blog-card h3 {
    margin-bottom: 12px;
}

.blog-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.blog-card a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    margin-top: 16px;
}

@media (max-width: 768px) {
    .blog-grid { grid-template-columns: 1fr; }
}