/* ============================================
   OVERBITS.AI - Digital Production Factory
   Industrial | Precision | High-Tech | Minimalist
   ============================================ */

/* === CSS Custom Properties === */
:root {
    /* Colors - Industrial Dark Palette */
    --color-bg: #0a0a0a;
    --color-bg-elevated: #111111;
    --color-bg-card: #161616;
    --color-surface: #1a1a1a;
    --color-border: #2a2a2a;
    --color-border-subtle: #1f1f1f;
    --color-border-hover: #3a3a3a;

    --color-text-primary: #fafafa;
    --color-text-secondary: #888888;
    --color-text-muted: #555555;

    /* Accent - Industrial Orange */
    --color-accent: #f97316;
    --color-accent-dim: #ea580c;
    --color-accent-glow: rgba(249, 115, 22, 0.15);

    --color-success: #22c55e;
    --color-info: #4dabf7;

    /* Typography */
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Layout */
    --max-width: 1200px;
    --header-height: 72px;

    /* Effects */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --shadow-glow: 0 0 40px var(--color-accent-glow);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* === Noise Overlay - Industrial Texture === */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.02;
    z-index: 1000;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* === Grid Overlay - Blueprint Effect === */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.015;
    z-index: 999;
    background-image:
        linear-gradient(var(--color-border-subtle) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border-subtle) 1px, transparent 1px);
    background-size: 50px 50px;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 1000;
    background: linear-gradient(to bottom, var(--color-bg) 0%, transparent 100%);
    backdrop-filter: blur(10px);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-lg) var(--space-xl);
    height: 100%;
}

.logo {
    display: flex;
    align-items: baseline;
    text-decoration: none;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

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

.logo-dot {
    color: var(--color-accent);
}

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

.nav-links a {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    text-transform: none;
    letter-spacing: normal;
    transition: color var(--transition-fast);
}

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

.nav-contact {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-contact:hover {
    color: var(--color-accent);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    position: relative;
    transition: background 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    transition: transform 0.3s ease, top 0.3s ease, bottom 0.3s ease;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

.nav.active .hamburger {
    background: transparent;
}

.nav.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.nav.active .hamburger::after {
    transform: rotate(-45deg);
    bottom: 0;
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

    .nav.active .nav-links {
        transform: translateX(0);
    }

    .nav-toggle {
        display: block;
        z-index: 101;
    }
}


.contact-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-success);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 8px transparent; }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: var(--space-4xl);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-4xl) var(--space-xl);
    padding-top: calc(var(--header-height) + var(--space-4xl));
}

.hero-content {
    transition: transform var(--transition-slow);
}

.hero-label {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.label-line {
    width: 40px;
    height: 1px;
    background: var(--color-accent);
}

.label-text {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

h1, h2, h3 {
    text-wrap: balance;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-xl);
}

.title-line {
    display: block;
}

.title-line.accent {
    color: var(--color-accent);
    text-shadow: var(--shadow-glow);
}

.hero-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    max-width: 500px;
    line-height: 1.7;
}

.hero-metrics {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    padding: var(--space-xl);
    border-left: 1px solid var(--color-border);
}

.metric {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.metric-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

/* ============================================
   SERVICES SECTION
   ============================================ */

.services {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-4xl) var(--space-xl);
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.section-number {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-accent);
}

.section-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    gap: var(--space-lg);
}

.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity var(--transition-slow),
        transform var(--transition-slow),
        border-color var(--transition-base),
        box-shadow var(--transition-base),
        transition-delay var(--transition-slow);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card.featured {
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-surface) 100%);
}

/* ============================================
   PROJECTS SECTION
   ============================================ */

.projects {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-4xl) var(--space-xl);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    gap: var(--space-lg);
}

.project-card {
    display: block;
    text-decoration: none;
    color: var(--color-text-primary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    overflow: hidden;
    position: relative;
    transition: border-color var(--transition-base), box-shadow var(--transition-base), transition-delay var(--transition-slow);
}

.project-card.visible,
.team-member.visible,
.blog-post-card.visible,
.testimonial-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.project-image {
    height: 250px;
    background-size: cover;
    background-position: center;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-content {
    padding: var(--space-lg);
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.project-category {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
}

.project-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.project-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

/* ============================================
   TEAM SECTION
   ============================================ */

.team {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-4xl) var(--space-xl);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    gap: var(--space-xl);
    text-align: center;
}

.team-member {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow), transition-delay var(--transition-slow);
}

.team-member-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-border);
    margin-bottom: var(--space-lg);
    transition: border-color var(--transition-base);
}

.team-member:hover .team-member-img {
    border-color: var(--color-accent);
}

.team-member-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.team-member-title {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
}

/* ============================================
   BLOG SECTION
   ============================================ */

.blog {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-4xl) var(--space-xl);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    gap: var(--space-lg);
}

.blog-post-card {
    display: block;
    text-decoration: none;
    color: var(--color-text-primary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--space-xl);
    transition: border-color var(--transition-base), box-shadow var(--transition-base), transition-delay var(--transition-slow);
}

.blog-post-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.blog-post-header {
    margin-bottom: var(--space-lg);
}

.blog-post-category {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
    display: block;
}

.cta-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.blog-post-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.blog-post-excerpt {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.blog-post-link {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-accent);
    text-decoration: none;
    display: inline-block;
    transition: transform var(--transition-fast);
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */

.testimonials {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-4xl) var(--space-xl);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    gap: var(--space-lg);
}

.testimonial-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--space-xl);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow), transition-delay var(--transition-slow);
}

.testimonial-quote {
    font-size: 1rem;
    font-style: italic;
    margin-bottom: var(--space-lg);
    color: var(--color-text-secondary);
}

.testimonial-author {
    font-family: var(--font-mono);
    text-align: right;
}

.testimonial-author-name {
    font-weight: 600;
    color: var(--color-text-primary);
}

.testimonial-author-company {
    font-size: 1rem;
    color: var(--color-accent);
    display: block;
}

.blog-post-card:hover .blog-post-link {
    transform: translateX(4px);
}

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    color: var(--color-accent);
}

.service-icon svg {
    width: 32px;
    height: 32px;
}

.service-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.service-desc {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.project-desc {
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.blog-post-excerpt {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.testimonial-quote {
    font-size: 1.125rem;
    font-style: italic;
    margin-bottom: var(--space-lg);
    color: var(--color-text-secondary);
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-4xl) var(--space-xl);
    min-height: 60vh;
}

.cta-content,
.cta-form {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.cta-content.visible,
.cta-form.visible {
    opacity: 1;
    transform: translateY(0);
}

.cta-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.cta-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-xl);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-xl);
    background: var(--color-accent);
    color: var(--color-bg);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    letter-spacing: 0.02em;
    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-base),
        background var(--transition-fast);
}

.cta-button:hover {
    background: var(--color-accent-dim);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.cta-button svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.cta-button:hover svg {
    transform: translateX(4px);
}

/* Form Styles */
.cta-form {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--space-xl);
}

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

.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: var(--space-md);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    transition: border-color var(--transition-fast);
}

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

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


/* ============================================
   FOOTER
   ============================================ */

.footer {
    border-top: 1px solid var(--color-border);
    padding: var(--space-3xl) var(--space-xl);
    margin-top: var(--space-4xl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-logo {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -0.02em;
}

.footer-tagline {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.footer-links a {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-legal {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }

    .hero-metrics {
        flex-direction: row;
        border-left: none;
        border-top: 1px solid var(--color-border);
        padding: var(--space-xl) 0 0;
    }

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

    .service-card.featured {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    :root {
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 3rem;
        --space-4xl: 4rem;
    }

    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + var(--space-3xl));
    }

    .hero-metrics {
        flex-wrap: wrap;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav {
        padding: var(--space-md);
    }

    .nav-contact span:not(.contact-indicator) {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .cta-title {
        font-size: 1.75rem;
    }
}

/* ============================================
   UTILITIES & ANIMATIONS
   ============================================ */

/* Selection highlight */
::selection {
    background: var(--color-accent);
    color: var(--color-bg);
}

/* Focus states for accessibility */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Smooth scroll anchor offset */
[id] {
    scroll-margin-top: calc(var(--header-height) + var(--space-xl));
}

/* Print styles */
@media print {
    .noise-overlay,
    .grid-overlay {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}