/* ============================================
   em8.io - Automation & AI Systems
   Dark Futurist Theme
   ============================================ */

/* CSS Variables */
:root {
    /* Primary Colors */
    --primary: #0d9488;
    --primary-light: #14b8a6;
    --primary-dark: #0f766e;
    
    /* Accent */
    --accent: #7c3aed;
    --accent-light: #8b5cf6;
    
    /* Neutrals (Dark Theme) */
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #334155;
    
    /* Semantic */
    --success: #22c55e;
    --warning: #eab308;
    --error: #ef4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(13, 148, 136, 0.15) 0%, transparent 70%);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

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

.section-title {
    text-align: center;
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(13, 148, 136, 0.3);
}

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

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.5rem;
}

.logo-icon {
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

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

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    padding: var(--space-md);
    flex-direction: column;
    gap: var(--space-sm);
    border-bottom: 1px solid var(--border);
    z-index: 99;
}

.mobile-menu a {
    color: var(--text-primary);
    text-decoration: none;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
}

.mobile-menu a:hover {
    background: var(--bg-card);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glow);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    margin-bottom: var(--space-md);
}

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

.hero-ctas {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.feature-item svg {
    color: var(--success);
}

/* Automation Flow Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.automation-flow {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xl);
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
}

.flow-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md);
    background: var(--bg-dark);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border);
    transition: var(--transition);
    min-width: 100px;
}

.flow-node:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.flow-node.trigger { border-color: var(--accent); }
.flow-node.process { border-color: var(--primary); }
.flow-node.result { border-color: var(--success); }

.node-icon {
    font-size: 2rem;
}

.node-label {
    font-weight: 600;
    font-size: 0.875rem;
}

.flow-line {
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
    position: relative;
}

.flow-line::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    border-left: 8px solid var(--primary);
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
}

/* Logo Bar */
.logo-bar {
    padding: var(--space-xl) 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.logo-bar-text {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

.logo-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

.platform-logo {
    opacity: 0.6;
    transition: var(--transition);
    filter: grayscale(100%) brightness(2);
}

.platform-logo:hover {
    opacity: 1;
    filter: grayscale(0%) brightness(1);
}

.platform-logo img {
    height: 32px;
    width: auto;
}

/* Problems Section */
.problems {
    padding: var(--space-3xl) 0;
}

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

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

.problem-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

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

.problem-card h3 {
    margin-bottom: var(--space-xs);
}

.problem-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* How It Works */
.how-it-works {
    padding: var(--space-3xl) 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-card) 50%, var(--bg-dark) 100%);
}

.steps {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.step {
    text-align: center;
    max-width: 280px;
    position: relative;
}

.step-number {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    font-size: 0.875rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon {
    font-size: 3rem;
    margin-bottom: var(--space-sm);
    padding-top: var(--space-md);
}

.step h3 {
    margin-bottom: var(--space-xs);
}

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

.step-connector {
    display: flex;
    align-items: center;
    color: var(--primary);
    padding-top: 60px;
}

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

/* Services */
.services {
    padding: var(--space-3xl) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.service-card {
    padding: var(--space-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    font-size: 2rem;
}

.service-icon img {
    width: 36px;
    height: 36px;
}

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

.service-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
}

.service-features {
    list-style: none;
}

.service-features li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-xs);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
}

/* Results */
.results {
    padding: var(--space-3xl) 0;
    background: var(--bg-dark);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.stat {
    text-align: center;
    padding: var(--space-lg);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
}

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

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: var(--space-xs);
}

/* Case Studies */
.case-studies {
    padding: var(--space-3xl) 0;
    background: var(--bg-dark);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-top: -1rem;
    margin-bottom: var(--space-xl);
}

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

.case-study-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.case-study-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.case-study-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary);
}

.case-study-tag {
    display: inline-block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.case-study-metric {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
    line-height: 1.1;
}

.case-study-metric-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-sm);
}

.case-study-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.case-study-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.case-study-wins {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.case-study-wins li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Testimonials */
.testimonials {
    padding: var(--space-3xl) 0;
}

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

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

.testimonial-stars {
    margin-bottom: var(--space-sm);
    font-size: 1.25rem;
}

.testimonial-card blockquote {
    color: var(--text-primary);
    font-size: 1rem;
    font-style: italic;
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

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

/* About */
.about {
    padding: var(--space-3xl) 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-card) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.about-image-placeholder {
    width: 250px;
    height: 250px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-weight: 700;
    color: white;
    margin: 0 auto;
}

.about-profile-img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto;
    display: block;
    border: 4px solid var(--primary);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

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

.about-text p {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.about-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.badge {
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-dark);
    border: 1px solid var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--primary-light);
}

.about-linkedin {
    display: inline-block;
    margin-top: var(--space-md);
}

.about-linkedin .social-icon {
    width: 28px;
    height: 28px;
    filter: invert(0.5);
    transition: var(--transition);
}

.about-linkedin:hover .social-icon {
    filter: invert(0.8);
}

/* Final CTA */
.final-cta {
    padding: var(--space-3xl) 0;
}

.cta-box {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-box h2 {
    margin-bottom: var(--space-sm);
    position: relative;
}

.cta-box p {
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto var(--space-lg);
    position: relative;
}

.cta-box .btn {
    background: white;
    color: var(--bg-dark);
    position: relative;
}

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

.cta-note {
    font-size: 0.875rem;
    opacity: 0.8;
    margin-top: var(--space-md) !important;
}

/* Footer */
.footer {
    padding: var(--space-2xl) 0 var(--space-md);
    background: var(--bg-card);
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.footer-links {
    display: flex;
    gap: var(--space-2xl);
}

.footer-column h4 {
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: var(--space-xs);
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--text-primary);
}

.social-icons {
    display: flex;
    gap: var(--space-sm);
}

.social-icon {
    width: 24px;
    height: 24px;
    filter: invert(0.6);
    transition: var(--transition);
}

.social-icons a:hover .social-icon {
    filter: invert(0.9);
}

.footer-bottom {
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
    text-align: center;
}

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

/* Animations */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeUp 0.08s ease-out forwards;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-ctas {
        justify-content: center;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-badges {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu.active {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .automation-flow {
        flex-direction: column;
        padding: var(--space-lg);
    }
    
    .flow-line {
        width: 2px;
        height: 30px;
    }
    
    .flow-line::after {
        right: auto;
        top: auto;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        border-left: 5px solid transparent;
        border-right: 5px solid transparent;
        border-top: 8px solid var(--primary);
        border-bottom: none;
    }
    
    .steps {
        flex-direction: column;
        align-items: center;
    }
    
    .step-connector {
        transform: rotate(90deg);
        padding-top: 0;
        margin: var(--space-sm) 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .logo-grid {
        gap: var(--space-lg);
    }
    
    .platform-logo img {
        height: 24px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
        width: 100%;
    }
    
    .hero-ctas {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Trusted By Carousel
   ============================================ */
.trusted-by-carousel {
    background: var(--bg-dark);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: var(--space-lg) 0;
    overflow: hidden;
}

.trusted-label {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.carousel-wrapper {
    overflow: hidden;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.carousel-track {
    display: flex;
    align-items: center;
    gap: 60px;
    animation: carouselScroll 25s linear infinite;
    width: max-content;
}

.carousel-track:hover {
    animation-play-state: paused;
}

@keyframes carouselScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.carousel-item {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 150px;
    height: 50px;
    opacity: 0.6;
    transition: var(--transition);
}

.carousel-item:hover {
    opacity: 1;
}

.carousel-item img {
    max-height: 40px;
    max-width: 180px;
    object-fit: contain;
}

.carousel-item.company-count {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .carousel-track {
        gap: 40px;
    }
    
    .carousel-item {
        min-width: 120px;
    }
    
    .carousel-item img {
        max-height: 30px;
        max-width: 140px;
    }
}