/* ========================================
   ACDG Ventures LLC - Professional Dark Theme
   ======================================== */

/* CSS Variables - Design System */
:root {
    /* Primary Colors */
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    
    /* Accent Colors */
    --accent-cyan: #06b6d4;
    --accent-purple: #a855f7;
    --accent-pink: #ec4899;
    
    /* Background Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #16161f;
    --bg-hover: #252533;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    /* Border Colors */
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-visible: rgba(255, 255, 255, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
    --gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-cyan) 0%, var(--primary) 50%, var(--accent-purple) 100%);
    
    /* Shadows */
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    --space-3xl: 8rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    display: block;
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ========================================
   Layout Components
   ======================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-3xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-2xl);
}

.section-header h2 {
    margin-bottom: var(--space-md);
}

.section-header p {
    font-size: 1.2rem;
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    padding: var(--space-sm) 0;
    background: rgba(10, 10, 15, 0.95);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

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

.nav-links {
    display: flex;
    gap: var(--space-xl);
    list-style: none;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.875rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-visible);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--primary-light);
}

.btn-group {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--gradient-hero);
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(168, 85, 247, 0.1) 0%, transparent 40%),
        radial-gradient(ellipse at 60% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 40%);
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.5;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--primary-light);
    margin-bottom: var(--space-lg);
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero h1 {
    margin-bottom: var(--space-lg);
    line-height: 1.1;
}

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

.hero p {
    font-size: 1.25rem;
    margin-bottom: var(--space-xl);
    max-width: 600px;
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-subtle);
}

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

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   Services Section
   ======================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-visible);
    box-shadow: var(--shadow-card);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    font-size: 1.75rem;
}

.service-card h3 {
    margin-bottom: var(--space-sm);
}

.service-card p {
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

.service-link {
    color: var(--primary-light);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.service-link:hover {
    gap: 0.5rem;
}

/* ========================================
   About Section
   ======================================== */

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-image {
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    padding: 3px;
    position: relative;
}

.about-image-inner {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.about-image-inner::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: var(--gradient-accent);
    filter: blur(80px);
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.about-text h2 {
    margin-bottom: var(--space-md);
}

.about-text p {
    margin-bottom: var(--space-md);
}

.feature-list {
    list-style: none;
    margin-top: var(--space-lg);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
}

.feature-list li::before {
    content: '✓';
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-cyan);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 700;
}

/* ========================================
   Industries Section
   ======================================== */

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.industry-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    transition: var(--transition-normal);
}

.industry-item:hover {
    border-color: var(--primary);
    background: var(--bg-hover);
}

.industry-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.industry-item h4 {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-3xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    right: -50%;
    bottom: -50%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    margin-bottom: var(--space-md);
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .btn-secondary {
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ========================================
   Contact Page Styles
   ======================================== */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
}

.contact-info h2 {
    margin-bottom: var(--space-md);
}

.contact-info > p {
    margin-bottom: var(--space-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.contact-method:hover {
    border-color: var(--border-visible);
    transform: translateX(5px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-details p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ========================================
   Legal Pages (Privacy & Terms)
   ======================================== */

.legal-page {
    padding-top: 140px;
    min-height: 100vh;
}

.legal-content {
    max-width: 900px;
    margin: 0 auto;
}

.legal-content h1 {
    margin-bottom: var(--space-sm);
}

.legal-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-subtle);
}

.legal-body {
    color: var(--text-secondary);
}

.legal-body h2 {
    font-size: 1.5rem;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.legal-body h3 {
    font-size: 1.25rem;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.legal-body p {
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.legal-body ul,
.legal-body ol {
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
}

.legal-body li {
    margin-bottom: var(--space-xs);
    color: var(--text-secondary);
}

.legal-body a {
    color: var(--primary-light);
    text-decoration: underline;
}

.legal-body a:hover {
    color: var(--primary);
}

.toc {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.toc h3 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.toc ul {
    list-style: none;
    padding: 0;
}

.toc li {
    margin-bottom: var(--space-xs);
}

.toc a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.toc a:hover {
    color: var(--primary-light);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand p {
    margin-top: var(--space-md);
    max-width: 300px;
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

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

.footer-links li {
    margin-bottom: var(--space-xs);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-legal a:hover {
    color: var(--text-secondary);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .about-content,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .about-visual {
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        border-top: 1px solid var(--border-subtle);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand p {
        max-width: none;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .cta-section {
        padding: var(--space-xl);
    }
    
    .btn-group {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .industries-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .stat-value {
        font-size: 2rem;
    }
}

/* ========================================
   Utility Classes
   ======================================== */

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

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

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }