/* ============================================
   GROWTH LAB — Premium Design System
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --black: #0a0a0a;
  --dark: #111111;
  --dark-2: #1a1a1a;
  --dark-3: #222222;
  --accent: #c8ff00;
  --accent-dim: #a8d600;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #cccccc;
  --gray-400: #999999;
  --gray-500: #666666;
  --gray-600: #444444;
  --font-display: 'Syne', sans-serif;
  --font-body: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: 0.2s var(--ease-out-expo);
  --transition-med: 0.4s var(--ease-out-expo);
  --transition-slow: 0.7s var(--ease-out-expo);
  --container: 1320px;
  --gap: clamp(1.5rem, 4vw, 3rem);
  --section-pad: clamp(4rem, 10vw, 8rem);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

::selection {
  background: var(--accent);
  color: var(--black);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.8rem, 7vw, 6rem); }
h2 { font-size: clamp(2rem, 5vw, 4rem); }
h3 { font-size: clamp(1.4rem, 3vw, 2rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

p { color: var(--gray-400); font-size: 1.05rem; line-height: 1.7; }

.label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.label::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.section-title { margin-bottom: 1rem; }
.section-desc { max-width: 600px; margin-bottom: 3rem; }
.mb-5 { margin-bottom: 3rem; }

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.section {
  padding: var(--section-pad) 0;
  position: relative;
}

.grid { display: grid; gap: var(--gap); }
.flex { display: flex; gap: var(--gap); }

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

.bg-dark { background: var(--black); }
.bg-dark-2 { background: var(--dark-2); border-top: 1px solid var(--dark-3); border-bottom: 1px solid var(--dark-3); }
.bg-light { background: var(--gray-100); }
.bg-light .section-title,
.bg-light h3,
.bg-light h4 { color: var(--black); }
.bg-light p { color: var(--gray-600); }

.divider { width: 100%; height: 1px; background: var(--dark-3); }

/* Grain overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  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)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: background var(--transition-med), padding var(--transition-fast), backdrop-filter var(--transition-med);
}

.header.scrolled {
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--dark-3);
}

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

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 1002;
}

.logo-dot { width: 10px; height: 10px; background: var(--accent); border-radius: 50%; display: inline-block; }

.nav-links { display: flex; align-items: center; gap: 2.5rem; }

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-300);
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-links a:hover,
.nav-links a.active { color: var(--white); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta {
  padding: 0.6rem 1.5rem; background: var(--accent); color: var(--black) !important;
  border-radius: 100px; font-weight: 600; font-size: 0.85rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-cta::after { display: none !important; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(200, 255, 0, 0.25); }

/* Mobile menu toggle */
.menu-toggle {
  display: none; flex-direction: column; gap: 5px; width: 28px; cursor: pointer; z-index: 1002;
}

.menu-toggle span {
  width: 100%; height: 2px; background: var(--white); transition: var(--transition-fast); transform-origin: center;
}

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav overlay */
.mobile-nav {
  display: none; position: fixed; inset: 0; background: rgba(10,10,10,0.98); backdrop-filter: blur(10px);
  z-index: 1001; flex-direction: column; align-items: center; justify-content: center;
  gap: 2rem; opacity: 0; pointer-events: none; transition: opacity var(--transition-med);
}

.mobile-nav.open { opacity: 1; pointer-events: all; display: flex; }

.mobile-nav a {
  font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--white);
  transition: color var(--transition-fast);
}

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

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem; padding: 1rem 2rem;
  border-radius: 100px; font-weight: 600; font-size: 0.95rem;
  transition: all var(--transition-fast); position: relative; overflow: hidden;
}

.btn-primary { background: var(--accent); color: var(--black); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(200, 255, 0, 0.3); }

.btn-secondary { background: transparent; color: var(--white); border: 1px solid var(--dark-3); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.btn-arrow { transition: transform var(--transition-fast); }
.btn:hover .btn-arrow { transform: translateX(4px); }
.btn-sm { padding: 0.7rem 1.5rem; font-size: 0.85rem; }

/* --- Hero Section --- */
.hero {
  min-height: 100vh; display: flex; align-items: center; position: relative;
  padding-top: 6rem; overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg::before {
  content: ''; position: absolute; top: -30%; right: -20%; width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(200, 255, 0, 0.08) 0%, transparent 70%);
  border-radius: 50%; animation: pulse-glow 6s ease-in-out infinite;
}
.hero-bg::after {
  content: ''; position: absolute; bottom: -20%; left: -10%; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(200, 255, 0, 0.04) 0%, transparent 70%);
  border-radius: 50%; animation: pulse-glow 8s ease-in-out infinite reverse;
}

.hero-grid-lines {
  position: absolute; inset: 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: 80px 80px;
}

.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 900px; }
.hero h1 { margin-bottom: 1.5rem; }
.hero h1 .accent-text { color: var(--accent); position: relative; }
.hero-sub { font-size: clamp(1.05rem, 2vw, 1.25rem); max-width: 650px; margin-bottom: 2.5rem; line-height: 1.7; }

.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 4rem; }

.hero-trust { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; padding-top: 2rem; border-top: 1px solid var(--dark-3); }
.hero-trust-item { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; color: var(--gray-400); }
.hero-trust-item svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; }

.hero-float-card {
  position: absolute; right: 5%; top: 50%; transform: translateY(-50%);
  background: var(--dark); border: 1px solid var(--dark-3); border-radius: 16px;
  padding: 2rem; width: 300px; animation: float 6s ease-in-out infinite;
}
.hero-float-card h4 {
  font-size: 0.85rem; color: var(--gray-400); font-family: var(--font-mono);
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.5rem;
}
.hero-float-card .big-number {
  font-family: var(--font-display); font-size: 3.5rem; font-weight: 800;
  color: var(--accent); line-height: 1; margin-bottom: 0.5rem;
}
.hero-float-card p { font-size: 0.9rem; color: var(--gray-400); }

/* --- Client Results / Stats --- */
.stats-section { border-top: 1px solid var(--dark-3); border-bottom: 1px solid var(--dark-3); background: var(--dark); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.stat-item { padding: 3rem 2rem; text-align: center; border-right: 1px solid var(--dark-3); position: relative; }
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: var(--font-display); font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 0.5rem;
}
.stat-label { font-size: 0.9rem; color: var(--gray-400); }

/* --- Services Section --- */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; }

.service-card {
  background: var(--dark); border: 1px solid var(--dark-3); border-radius: 16px;
  padding: 2.5rem; transition: all var(--transition-med); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform var(--transition-med);
}
.service-card:hover { border-color: var(--dark-3); transform: translateY(-4px); background: var(--dark-2); }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px; height: 56px; background: rgba(200, 255, 0, 0.1); border-radius: 12px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; transition: background var(--transition-fast);
}
.service-card:hover .service-icon { background: rgba(200, 255, 0, 0.15); }
.service-icon svg { width: 28px; height: 28px; color: var(--accent); }

.service-card h3 { font-size: 1.3rem; margin-bottom: 0.75rem; color: var(--white); }
.service-card p { font-size: 0.95rem; margin-bottom: 1.5rem; }
.service-link {
  font-size: 0.85rem; font-weight: 600; color: var(--accent); display: inline-flex;
  align-items: center; gap: 0.4rem; transition: gap var(--transition-fast);
}
.service-card:hover .service-link { gap: 0.8rem; }

/* --- Why Choose Us --- */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.why-features { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }

.why-feature {
  padding: 1.5rem; background: var(--dark); border: 1px solid var(--dark-3);
  border-radius: 12px; transition: border-color var(--transition-fast);
}
.why-feature:hover { border-color: var(--accent); }
.why-feature-icon { font-size: 1.5rem; margin-bottom: 0.75rem; }
.why-feature h4 { font-size: 1rem; margin-bottom: 0.4rem; color: var(--white); }
.why-feature p { font-size: 0.85rem; line-height: 1.5; }

.why-image {
  position: relative; border-radius: 16px; overflow: hidden; aspect-ratio: 4/3;
  background: var(--dark); border: 1px solid var(--dark-3);
}
.why-image-inner {
  width: 100%; height: 100%; background: linear-gradient(135deg, var(--dark-2), var(--dark));
  display: flex; align-items: center; justify-content: center;
}
.why-image-graphic { width: 80%; height: 80%; position: relative; }
.why-image-graphic .bar {
  position: absolute; bottom: 0; width: 12%; background: var(--accent);
  border-radius: 4px 4px 0 0; opacity: 0.7;
}
.why-image-graphic .bar:nth-child(1) { left: 5%; height: 40%; }
.why-image-graphic .bar:nth-child(2) { left: 22%; height: 65%; }
.why-image-graphic .bar:nth-child(3) { left: 39%; height: 50%; }
.why-image-graphic .bar:nth-child(4) { left: 56%; height: 80%; }
.why-image-graphic .bar:nth-child(5) { left: 73%; height: 95%; }

/* --- Industries --- */
.industries-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
.industry-card {
  padding: 2rem 1.5rem; background: var(--dark); border: 1px solid var(--dark-3);
  border-radius: 12px; text-align: center; transition: all var(--transition-fast);
}
.industry-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.industry-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.industry-card h4 { font-size: 0.95rem; color: var(--white); }

/* --- Testimonials --- */
.testimonials-wrapper { position: relative; overflow: hidden; }
.testimonials-track { display: flex; gap: 1.5rem; transition: transform 0.5s var(--ease-out-expo); }
.testimonial-card {
  min-width: calc(33.333% - 1rem); background: var(--dark); border: 1px solid var(--dark-3);
  border-radius: 16px; padding: 2.5rem; flex-shrink: 0;
}
.testimonial-stars { display: flex; gap: 0.25rem; margin-bottom: 1.25rem; color: var(--accent); font-size: 1rem; }
.testimonial-text {
  font-size: 1.05rem; line-height: 1.7; color: var(--gray-300); margin-bottom: 1.5rem; font-style: italic;
}
.testimonial-author { display: flex; align-items: center; gap: 1rem; }
.testimonial-avatar {
  width: 48px; height: 48px; border-radius: 50%; background: var(--dark-3);
  display: flex; align-items: center; justify-content: center; font-family: var(--font-display);
  font-weight: 700; font-size: 1rem; color: var(--accent);
}
.testimonial-name { font-weight: 600; font-size: 0.95rem; color: var(--white); }
.testimonial-role { font-size: 0.8rem; color: var(--gray-500); }

.testimonials-nav { display: flex; gap: 0.75rem; margin-top: 2rem; justify-content: flex-end; }
.testimonials-nav button {
  width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--dark-3);
  display: flex; align-items: center; justify-content: center; color: var(--white); transition: all var(--transition-fast);
}
.testimonials-nav button:hover { border-color: var(--accent); color: var(--accent); }

/* --- Process --- */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; position: relative; }
.process-grid::before {
  content: ''; position: absolute; top: 40px; left: 10%; right: 10%; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--dark-3)); z-index: 0;
}
.process-step { text-align: center; position: relative; z-index: 1; }
.process-number {
  width: 80px; height: 80px; border-radius: 50%; background: var(--dark); border: 2px solid var(--accent);
  display: flex; align-items: center; justify-content: center; font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 800; color: var(--accent); margin: 0 auto 1.5rem;
}
.process-step h4 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--white); }
.process-step p { font-size: 0.9rem; }

/* --- FAQ --- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--dark-3); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 1.5rem 0; font-family: var(--font-display); font-size: 1.1rem;
  font-weight: 600; color: var(--white); text-align: left; cursor: pointer; transition: color var(--transition-fast);
}
.faq-question:hover { color: var(--accent); }

.faq-icon { width: 24px; height: 24px; position: relative; flex-shrink: 0; }
.faq-icon span { position: absolute; background: var(--accent); transition: transform var(--transition-fast); }
.faq-icon span:first-child { width: 100%; height: 2px; top: 50%; left: 0; transform: translateY(-50%); }
.faq-icon span:last-child { width: 2px; height: 100%; left: 50%; top: 0; transform: translateX(-50%); }

.faq-item.active .faq-icon span:last-child { transform: translateX(-50%) rotate(90deg); }

.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--transition-med), padding var(--transition-med); }
.faq-answer p { padding-bottom: 1.5rem; font-size: 0.95rem; line-height: 1.7; }
.faq-item.active .faq-answer { max-height: 300px; }


/* --- Contact Form (PLACEHOLDER FILLED) --- */
.contact-wrapper {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start;
}
.contact-form {
  background: var(--dark); padding: 3rem; border: 1px solid var(--dark-3); border-radius: 16px;
}
.form-group { margin-bottom: 1.5rem; }
.form-group label {
  display: block; margin-bottom: 0.5rem; font-size: 0.85rem; color: var(--gray-300);
  font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.05em;
}
.form-control {
  width: 100%; background: var(--dark-2); border: 1px solid var(--dark-3); color: var(--white);
  padding: 1rem 1.2rem; border-radius: 8px; transition: all var(--transition-fast);
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(200, 255, 0, 0.1); }
textarea.form-control { min-height: 120px; resize: vertical; }

/* --- Footer (PLACEHOLDER FILLED) --- */
.footer {
  background: var(--black); border-top: 1px solid var(--dark-3);
  padding: 5rem 0 2rem;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 4rem;
}
.footer-col h4 {
  color: var(--white); margin-bottom: 1.5rem; font-size: 1.05rem; font-family: var(--font-display);
}
.footer-links { display: flex; flex-direction: column; gap: 0.8rem; }
.footer-links a {
  color: var(--gray-400); transition: color var(--transition-fast); font-size: 0.95rem;
}
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--dark-3); padding-top: 2rem;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--gray-500); font-size: 0.85rem;
}

/* --- Inner Pages (PLACEHOLDER FILLED) --- */
.case-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem;
}
.case-card {
  background: var(--dark); border: 1px solid var(--dark-3); border-radius: 16px;
  overflow: hidden; transition: transform var(--transition-med), border-color var(--transition-fast);
  display: flex; flex-direction: column;
}
.case-card:hover { transform: translateY(-5px); border-color: var(--accent); }
.case-img { width: 100%; height: 260px; background: var(--dark-2); position: relative; }
.case-content { padding: 2.5rem; }
.case-tags { display: flex; gap: 0.5rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.case-tag {
  font-size: 0.75rem; font-family: var(--font-mono); color: var(--accent);
  background: rgba(200, 255, 0, 0.08); padding: 0.4rem 1rem; border-radius: 100px;
}

/* --- Animations (PLACEHOLDER FILLED) --- */
@keyframes pulse-glow {
  0% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 0.8; }
  100% { transform: scale(1); opacity: 0.5; }
}
@keyframes float {
  0% { transform: translateY(-50%); }
  50% { transform: translateY(calc(-50% - 15px)); }
  100% { transform: translateY(-50%); }
}

/* --- Responsive (PLACEHOLDER FILLED) --- */
@media (max-width: 1024px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 3rem 2rem; }
  .process-grid::before { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(1), .stat-item:nth-child(2) { border-bottom: 1px solid var(--dark-3); }
  .testimonial-card { min-width: calc(50% - 0.75rem); }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .menu-toggle { display: flex; }
  
  .hero { padding-top: 8rem; text-align: center; }
  .hero-buttons { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-float-card { display: none; }
  
  .why-grid, .contact-wrapper, .case-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 2rem; }
  
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--dark-3); padding: 2rem; }
  .stat-item:last-child { border-bottom: none; }
  
  .testimonial-card { min-width: 100%; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .why-features { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.5rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}