/* ============================================
   FormulaXR Studio - Landing Page
   Dark cinematic style inspired by Rockstar Games
   ============================================ */

:root {
    --bg: #0b0b0b;
    --bg-layer1: #111111;
    --bg-layer2: #1a1a1a;
    --border: #222222;
    --text: #e8e8e8;
    --text-dim: #888888;
    --text-muted: #555555;
    --accent: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.15);
    --white-15: rgba(255, 255, 255, 0.08);
    --white-40: rgba(255, 255, 255, 0.15);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --nav-height: 72px;
    --section-padding: 72px;
    --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
    --ease-out: cubic-bezier(0, 0, 0.25, 1);
}

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

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

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

a {
    color: inherit;
    text-decoration: none;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(20px, 5vw, 80px);
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    background: rgba(11, 11, 11, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.nav.scrolled {
    border-bottom-color: var(--border);
    background: rgba(11, 11, 11, 0.95);
}

.nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(20px, 5vw, 80px);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0;
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.nav-logo-img {
    height: 28px;
    width: auto;
}

.footer-logo-img {
    height: 24px;
    width: auto;
}

.logo-studio {
    font-size: 0.55rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-left: 8px;
}

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-links a {
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-dim);
    transition: all 0.3s ease;
    letter-spacing: -0.01em;
}

.nav-links a:hover {
    color: var(--text);
    background: var(--white-15);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-toggle {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-dim);
    padding: 6px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.05em;
}

.lang-toggle:hover {
    border-color: var(--text-dim);
    color: var(--text);
}

.nav-cta {
    background: var(--accent);
    color: #000;
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
    letter-spacing: -0.01em;
}

.nav-cta:hover {
    background: #fff;
    transform: scale(1.03);
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-mobile-toggle span {
    width: 22px;
    height: 1.5px;
    background: var(--text);
    transition: all 0.3s ease;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(11, 11, 11, 0.98);
    backdrop-filter: blur(20px);
    padding: 20px;
    flex-direction: column;
    gap: 4px;
    z-index: 999;
    border-bottom: 1px solid var(--border);
    transform: translateY(-10px);
    opacity: 0;
    transition: all 0.3s ease;
}

.mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu a {
    padding: 14px 20px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-dim);
    transition: all 0.3s ease;
}

.mobile-menu a:hover {
    color: var(--text);
    background: var(--white-15);
}

.mobile-menu .nav-cta {
    text-align: center;
    margin-top: 8px;
}

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

.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: flex-end;
    padding-bottom: clamp(60px, 10vh, 120px);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
}

.hero-slider {
    position: absolute;
    inset: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: scale(1.05);
    transition: opacity 1.5s ease, transform 8s ease-out;
}

.hero-slide.active {
    opacity: 1;
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(11, 11, 11, 0.3) 0%, rgba(11, 11, 11, 0.1) 40%, rgba(11, 11, 11, 0.7) 70%, rgba(11, 11, 11, 1) 100%),
        linear-gradient(90deg, rgba(11, 11, 11, 0.6) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(20px, 5vw, 80px);
    width: 100%;
}

.hero-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(20px);
}

.hero-title {
    display: flex;
    flex-direction: column;
    margin-bottom: 24px;
}

.hero-line {
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.0;
    color: var(--text);
    opacity: 0;
    transform: translateY(40px);
}

.hero-line.accent {
    color: var(--accent);
}

.hero-sub {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    color: var(--text-dim);
    max-width: 500px;
    line-height: 1.6;
    margin-bottom: 36px;
    opacity: 0;
    transform: translateY(20px);
}

.hero-actions {
    display: flex;
    gap: 12px;
    opacity: 0;
    transform: translateY(20px);
}

.hero-scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(180deg, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); }
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.3s var(--ease);
    border: none;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: var(--accent);
    color: #000;
}

.btn-primary:hover {
    background: #fff;
    transform: scale(1.03);
    box-shadow: 0 0 30px var(--accent-glow);
}

.btn-ghost {
    background: var(--white-15);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--white-40);
    border-color: var(--text-muted);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* ============================================
   Stats
   ============================================ */

.stats {
    padding: 80px 0;
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item {
    opacity: 0;
    transform: translateY(30px);
}

.stat-number {
    font-size: clamp(2.5rem, 4vw, 4rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    color: var(--text);
    line-height: 1;
}

.stat-suffix {
    font-size: clamp(2rem, 3vw, 3rem);
    font-weight: 900;
    color: var(--accent);
}

.stat-label {
    display: block;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-dim);
    font-weight: 500;
}

/* ============================================
   Section Headers
   ============================================ */

.section-header {
    margin-bottom: 60px;
}

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

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

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

/* ============================================
   Products
   ============================================ */

.products {
    padding: var(--section-padding) 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.product-card {
    background: var(--bg-layer1);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: all 0.4s var(--ease);
    opacity: 0;
    transform: translateY(40px);
}

.product-card:hover {
    background: var(--bg-layer2);
    border-color: var(--text-muted);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.5);
}

.product-logo {
    height: 40px;
    width: auto;
    margin-bottom: 20px;
    object-fit: contain;
}

.product-card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
    margin-bottom: 20px;
}

.product-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    margin-top: auto;
    transition: color 0.3s;
}

.product-card:hover .product-link {
    color: var(--text);
}

.services {
    padding: var(--section-padding) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.service-card {
    background: var(--bg-layer1);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 32px;
    transition: all 0.4s var(--ease);
    opacity: 0;
    transform: translateY(40px);
}

.service-card:hover {
    background: var(--bg-layer2);
    border-color: var(--text-muted);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.5);
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 20px;
    color: var(--accent);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* ============================================
   Portfolio
   ============================================ */

.portfolio {
    padding: var(--section-padding) 0;
    background: var(--bg);
}

.portfolio .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 0 8px;
}

.portfolio-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 16/9;
    cursor: pointer;
    display: block;
    opacity: 0;
    transform: translateY(40px);
}


.card-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 0.6s var(--ease-out);
}

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

/* ---- Portfolio Filters ---- */

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    flex-wrap: wrap;
    padding: 0 8px;
}

.filter-btn {
    background: var(--white-15);
    border: 1px solid var(--border);
    color: var(--text-dim);
    padding: 10px 24px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: -0.01em;
}

.filter-btn:hover {
    background: var(--white-40);
    color: var(--text);
}

.filter-btn.active {
    background: var(--accent);
    color: #000;
    border-color: var(--accent);
}

/* ---- Card Overlay (centered on hover) ---- */

.card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 28px;
    transition: background 0.4s ease;
}

.card-overlay h3,
.card-overlay p,
.card-overlay .card-tag {
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.portfolio-card:hover .card-overlay {
    background: rgba(0, 0, 0, 0.7);
}

.portfolio-card:hover .card-overlay h3,
.portfolio-card:hover .card-overlay p,
.portfolio-card:hover .card-overlay .card-tag {
    opacity: 1;
    transform: translateY(0);
}

.portfolio-card:hover .card-overlay p { transition-delay: 0.05s; }
.portfolio-card:hover .card-overlay .card-tag { transition-delay: 0.1s; }

.card-tag {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-top: 6px;
}

.card-overlay h3 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    margin-bottom: 8px;
}

.card-overlay p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.4;
    max-width: 320px;
    margin-bottom: 8px;
}

/* ---- Project Detail Modal ---- */

.project-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    overflow-y: auto;
    padding: 60px 20px;
}

.project-modal.active {
    opacity: 1;
    visibility: visible;
}

.project-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
}

.project-modal-content {
    position: relative;
    background: var(--bg-layer1);
    border: 1px solid var(--border);
    border-radius: 20px;
    max-width: 800px;
    width: 100%;
    padding: 48px;
    transform: translateY(30px) scale(0.97);
    transition: transform 0.4s var(--ease);
    z-index: 1;
}

.project-modal.active .project-modal-content {
    transform: translateY(0) scale(1);
}

.project-modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.3s ease;
    line-height: 1;
    padding: 4px 8px;
}

.project-modal-close:hover {
    color: #fff;
}

.project-modal-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
    margin-bottom: 24px;
    padding-right: 40px;
}

.project-modal-body p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 20px;
}

.project-modal-body .modal-video {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    border: 1px solid var(--border);
    margin-bottom: 20px;
}

.project-modal-body .modal-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 6px 14px;
    margin-right: 8px;
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .project-modal {
        padding: 20px 12px;
    }
    .project-modal-content {
        padding: 32px 24px;
    }
    .project-modal-title {
        font-size: 1.5rem;
    }
}

/* ---- Card hidden state for filter ---- */

.portfolio-card.hidden {
    display: none;
}

.portfolio-more {
    text-align: center;
    margin-top: 48px;
    padding: 0 8px;
}

/* ============================================
   Clients
   ============================================ */

.clients {
    padding: var(--section-padding) 0;
    overflow: hidden;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 48px;
}

.client-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--bg-layer1);
    transition: all 0.4s var(--ease);
    opacity: 0;
    transform: translateY(30px);
    position: relative;
}

.client-logo:hover {
    background: var(--bg-layer2);
    border-color: var(--text-muted);
    transform: translateY(-2px);
}

.client-logo img {
    max-width: 80%;
    max-height: 56px;
    object-fit: contain;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.client-logo:hover img {
    opacity: 1;
}

.client-label {
    position: absolute;
    bottom: 8px;
    right: 12px;
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.35);
    text-align: right;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.client-logo:hover .client-label {
    color: rgba(255, 255, 255, 0.55);
}

.client-wordmark {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--text-dim);
    transition: color 0.3s ease;
    text-align: center;
}

.client-logo:hover .client-wordmark {
    color: var(--text);
}

.client-wordmark.dupont {
    font-size: 1rem;
    letter-spacing: 0.12em;
    font-weight: 900;
}

/* ============================================
   Tech
   ============================================ */

.tech {
    padding: 80px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.tech-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tech-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
}

.tech-value {
    font-size: 0.9rem;
    color: var(--text-dim);
    font-weight: 500;
}

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

.cta {
    padding: var(--section-padding) 0;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 30%;
    left: 20%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow), transparent 70%);
    pointer-events: none;
}

.cta-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
    position: relative;
    z-index: 1;
}

.cta-left {
    position: sticky;
    top: 120px;
}

.cta-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: 20px;
}

.cta-sub {
    font-size: 1.1rem;
    color: var(--text-dim);
    margin-bottom: 32px;
    max-width: 400px;
}

.cta-contact-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cta-email-link {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
    transition: color 0.3s ease;
}

.cta-email-link:hover {
    color: #fff;
}

/* ---- Contact Form ---- */

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.form-group input,
.form-group select,
.form-group textarea {
    background: var(--bg-layer1);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    font-size: 0.95rem;
    font-family: var(--font);
    color: var(--text);
    transition: all 0.3s ease;
    outline: none;
    -webkit-appearance: none;
}

.form-group select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23888888' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--bg-layer1);
    color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.contact-form .btn {
    margin-top: 8px;
}

/* ---- Form Success ---- */

.form-success {
    text-align: center;
    padding: 60px 20px;
}

.success-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--accent);
    color: #000;
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.form-success h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.form-success p {
    color: var(--text-dim);
    font-size: 1rem;
}

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

.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand {
    font-weight: 800;
    font-size: 0.95rem;
    letter-spacing: -0.02em;
}

.footer-brand .logo-studio {
    font-size: 0.5rem;
}

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

.footer-links a {
    font-size: 0.85rem;
    color: var(--text-dim);
    transition: color 0.3s ease;
}

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

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid .product-card:last-child {
        grid-column: 1 / -1;
        max-width: 50%;
        justify-self: center;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
        padding: 0 6px;
    }


    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-right .nav-cta {
        display: none;
    }

    .nav-mobile-toggle {
        display: flex;
    }

    .mobile-menu {
        display: flex;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

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

    .products-grid .product-card:last-child {
        max-width: 100%;
    }

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

    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 4px;
        padding: 0 4px;
    }


    .tech-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .cta-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .cta-left {
        position: static;
        text-align: center;
    }

    .cta-sub {
        max-width: none;
    }

    .cta-contact-info {
        align-items: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Noise overlay
   ============================================ */

body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.015;
    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");
    background-repeat: repeat;
    background-size: 256px 256px;
}