/* ============================================================
   CUSTOMEDIA v2.0 — AI-First Web Agency
   Premium SaaS Dark Theme | Performance-Optimized
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors — Inspired by AbstractAPI (Navy + Green) */
  --bg-primary: #0f0e1a;
  --bg-secondary: #161528;
  --bg-card: rgba(255,255,255,.04);
  --bg-card-hover: rgba(255,255,255,.07);
  --bg-glass: rgba(255,255,255,.05);
  --border-glass: rgba(255,255,255,.08);
  --border-glass-hover: rgba(255,255,255,.15);

  --text-primary: #f0f0f5;
  --text-secondary: #A6B4BD;
  --text-muted: #6F7E87;

  --accent-blue: #1CC67E;
  --accent-violet: #20E492;
  --accent-cyan: #6BF88C;
  --gradient-main: linear-gradient(135deg, #1CC67E, #20E492);
  --gradient-hero: linear-gradient(160deg, #1CC67E 0%, #20E492 50%, #6BF88C 100%);
  --gradient-glow: radial-gradient(ellipse at 50% 0%, rgba(32,228,146,.12) 0%, transparent 60%);

  /* Typography — Inter from Google Fonts */
  --font-sans: 'Inter', 'Inter fallback', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing Scale */
  --space-xs: .25rem;
  --space-sm: .5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --max-w: 1200px;
  --radius-sm: .5rem;
  --radius-md: .75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  /* Transitions */
  --ease-out: cubic-bezier(.16,1,.3,1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 100%;              /* 16px */
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Skip Link (Accessibility) */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--accent-blue);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 600;
  transition: top var(--duration-fast);
}
.skip-link:focus {
  top: var(--space-md);
}

/* ---------- Utility Classes ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

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

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-glass);
  margin-bottom: var(--space-lg);
  letter-spacing: .02em;
}

.section-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-blue);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.5); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: .875rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: .9375rem;
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
  letter-spacing: .01em;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-main);
  color: #0f0e1a;
  box-shadow: 0 4px 20px rgba(28,198,126,.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(28,198,126,.35);
}

.btn-outline {
  border: 1px solid var(--border-glass-hover);
  color: var(--text-primary);
  background: var(--bg-glass);
}
.btn-outline:hover {
  border-color: var(--accent-blue);
  background: rgba(28,198,126,.08);
  transform: translateY(-2px);
}

.btn-icon {
  transition: transform var(--duration-base) var(--ease-out);
}
.btn:hover .btn-icon {
  transform: translateX(4px);
}

/* ---------- Header / Navbar ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  transition: background var(--duration-base) var(--ease-out), padding var(--duration-base) var(--ease-out);
}

.header.scrolled {
  background: rgba(10,10,15,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glass);
  padding: var(--space-sm) 0;
}

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

.logo {
  display: inline-flex;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.02em;
}

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

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

.nav-links a {
  font-size: .875rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--gradient-main);
  border-radius: 1px;
  transition: width var(--duration-base) var(--ease-out);
}

.nav-links a:hover, .nav-links a[aria-current="page"] {
  color: var(--text-primary);
}
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after {
  width: 100%;
}

.nav-cta {
  padding: .625rem 1.25rem !important;
  font-size: .875rem !important;
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base) var(--ease-out);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-5xl) 0 var(--space-4xl);
  overflow: hidden;
  contain: layout style;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 900px;
  background: var(--gradient-glow);
  pointer-events: none;
  z-index: 0;
}

/* Grid Pattern background */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  pointer-events: none;
}

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

/* ---------- CustomedIA Brand Animation ---------- */
.hero-brand-anim {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: var(--space-xl);
  position: relative;
}

.hero-brand-base {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  letter-spacing: -.04em;
  color: var(--text-primary);
  animation: brandBaseIn .8s var(--ease-out) .3s both;
}

.hero-brand-ia {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  letter-spacing: -.04em;
  position: relative;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: iaReveal 1s var(--ease-out) 1s both;
}

/* Glowing underline under IA */
.hero-brand-ia::after {
  content: '';
  position: absolute;
  bottom: .05em;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-main);
  border-radius: 2px;
  animation: iaUnderline .8s var(--ease-out) 1.5s both;
  box-shadow: 0 0 20px rgba(32,228,146,.5), 0 0 40px rgba(28,198,126,.25);
}

/* Pulsing glow behind IA */
.hero-brand-ia::before {
  content: '';
  position: absolute;
  inset: -.3em -.5em;
  background: radial-gradient(ellipse, rgba(32,228,146,.12) 0%, transparent 70%);
  border-radius: 50%;
  animation: iaGlow 4s ease-in-out 2s infinite;
  pointer-events: none;
  z-index: -1;
  will-change: opacity;
}

@keyframes brandBaseIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes iaReveal {
  0% {
    opacity: 0;
    transform: translateY(15px) scale(0.8);
  }
  60% {
    opacity: 1;
    transform: translateY(-3px) scale(1.08);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes iaUnderline {
  from {
    transform: scaleX(0);
    transform-origin: left;
  }
  to {
    transform: scaleX(1);
    transform-origin: left;
  }
}

@keyframes iaGlow {
  0%, 100% {
    opacity: .4;
    transform: scale(1);
  }
  50% {
    opacity: .8;
    transform: scale(1.15);
  }
}

/* Tagline cycling beneath brand */
.hero-brand-anim {
  flex-wrap: wrap;
}

.hero-brand-tagline {
  display: block;
  width: 100%;
  text-align: center;
  font-size: clamp(.9rem, 2vw, 1.15rem);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent-blue);
  opacity: 0;
  margin-top: var(--space-xs);
}

@keyframes taglineCycle {
  0% {
    opacity: 0;
    transform: translateY(8px);
  }
  15% {
    opacity: 1;
    transform: translateY(0);
  }
  75% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(-8px);
  }
}

.hero-badge {
  margin-bottom: var(--space-xl);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: var(--space-lg);
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  justify-content: center;
  margin-top: var(--space-4xl);
  flex-wrap: wrap;
}

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

.hero-stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1;
}

.hero-stat-label {
  font-size: .8125rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: .08em;
}

/* ---------- Social Proof / Logos ---------- */
.social-proof {
  padding: var(--space-4xl) 0;
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
  background: var(--bg-secondary);
}

.social-proof-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.social-proof-header p {
  font-size: .875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-weight: 600;
}

.proof-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.proof-card {
  text-align: center;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass);
  background: var(--bg-card);
  transition: transform var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}

.proof-card:hover {
  border-color: var(--border-glass-hover);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.proof-card-number {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1;
}

.proof-card-label {
  font-size: .8125rem;
  color: var(--text-secondary);
  margin-top: var(--space-sm);
}

/* ---------- Services Section ---------- */
.services {
  padding: var(--space-5xl) 0;
  position: relative;
  content-visibility: auto;
  contain-intrinsic-size: auto 800px;
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.service-card {
  position: relative;
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-glass);
  background: var(--bg-card);
  transition: transform var(--duration-slow) var(--ease-out), border-color var(--duration-slow) var(--ease-out);
  overflow: hidden;
  contain: layout style paint;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-main);
  opacity: 0;
  transition: opacity var(--duration-base);
}

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

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

.service-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  margin-bottom: var(--space-lg);
  font-size: 1.375rem;
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.02em;
  margin-bottom: var(--space-sm);
}

.service-card p {
  color: var(--text-secondary);
  font-size: .9375rem;
  line-height: 1.7;
}

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

.service-tag {
  font-size: .75rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: 100px;
  background: rgba(28,198,126,.08);
  color: var(--accent-blue);
  border: 1px solid rgba(28,198,126,.15);
  font-weight: 600;
}

/* ---------- Process / Timeline Section ---------- */
.process {
  padding: var(--space-5xl) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glass);
  overflow: hidden;
  content-visibility: auto;
  contain-intrinsic-size: auto 1200px;
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: var(--space-3xl) auto 0;
}

/* Central vertical line */
.timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(255,255,255,.06);
  transform: translateX(-50%);
}

.timeline-line-progress {
  width: 100%;
  height: 0%;
  background: var(--gradient-main);
  border-radius: 1px;
  transition: height .1s linear;
  box-shadow: 0 0 12px rgba(28,198,126,.3);
}

/* Timeline item */
.timeline-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--space-3xl);
  width: 50%;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-left {
  padding-right: var(--space-2xl);
  justify-content: flex-end;
  text-align: right;
}

.timeline-right {
  margin-left: 50%;
  padding-left: var(--space-2xl);
  text-align: left;
}

/* Dot on the center line */
.timeline-dot {
  position: absolute;
  top: .25rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid rgba(28,198,126,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  z-index: 2;
  transition: transform .4s var(--ease-out), border-color .4s, box-shadow .4s;
}

.timeline-left .timeline-dot {
  right: -24px;
}

.timeline-right .timeline-dot {
  left: -24px;
}

.timeline-item.is-active .timeline-dot {
  border-color: var(--accent-blue);
  box-shadow: 0 0 20px rgba(28,198,126,.35), 0 0 40px rgba(28,198,126,.15);
  transform: scale(1.15);
}

.timeline-dot-final {
  border-color: rgba(107,248,140,.4);
}

.timeline-item.is-active .timeline-dot-final {
  border-color: #6BF88C;
  box-shadow: 0 0 24px rgba(107,248,140,.4), 0 0 48px rgba(107,248,140,.15);
}

/* Content card */
.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: border-color .4s, box-shadow .4s, transform .4s var(--ease-out);
  position: relative;
  contain: layout style paint;
}

.timeline-item.is-active .timeline-content {
  border-color: rgba(28,198,126,.25);
  box-shadow: 0 8px 32px rgba(28,198,126,.08);
  transform: translateY(-4px);
}

/* Arrow connecting content to dot */
.timeline-left .timeline-content::after {
  content: '';
  position: absolute;
  top: 1rem;
  right: -8px;
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 8px solid var(--border-glass);
}

.timeline-right .timeline-content::after {
  content: '';
  position: absolute;
  top: 1rem;
  left: -8px;
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-right: 8px solid var(--border-glass);
}

.timeline-item.is-active .timeline-left .timeline-content::after,
.timeline-item.is-active.timeline-left .timeline-content::after {
  border-left-color: rgba(28,198,126,.25);
}

.timeline-item.is-active .timeline-right .timeline-content::after,
.timeline-item.is-active.timeline-right .timeline-content::after {
  border-right-color: rgba(28,198,126,.25);
}

.timeline-step {
  display: inline-block;
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-sm);
  opacity: .5;
  transition: opacity .4s;
}

.timeline-item.is-active .timeline-step {
  opacity: 1;
}

.timeline-content h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.timeline-content p {
  font-size: .95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ---------- Timeline Responsive ---------- */
@media (max-width: 768px) {
  .timeline-line {
    left: 24px;
  }

  .timeline-item,
  .timeline-right {
    width: 100%;
    margin-left: 0;
    padding-left: calc(48px + var(--space-lg));
    padding-right: 0;
    text-align: left;
  }

  .timeline-left {
    justify-content: flex-start;
    text-align: left;
  }

  .timeline-left .timeline-dot,
  .timeline-right .timeline-dot {
    left: 0;
    right: auto;
  }

  .timeline-left .timeline-content::after {
    left: -8px;
    right: auto;
    border-left: none;
    border-right: 8px solid var(--border-glass);
  }

  .timeline-item.is-active.timeline-left .timeline-content::after {
    border-right-color: rgba(28,198,126,.25);
    border-left-color: transparent;
  }
}

/* ---------- Tech Stack Section ---------- */
.tech-stack {
  padding: var(--space-5xl) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-md);
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xl) var(--space-md);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass);
  background: var(--bg-card);
  transition: transform var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
  text-align: center;
}

.tech-item:hover {
  border-color: var(--border-glass-hover);
  transform: translateY(-3px);
}

.tech-item svg {
  width: 36px; height: 36px;
  opacity: .8;
  transition: opacity var(--duration-fast);
}

.tech-item:hover svg {
  opacity: 1;
}

.tech-item span {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* ---------- Case Studies / Results ---------- */
.results {
  padding: var(--space-5xl) 0;
  content-visibility: auto;
  contain-intrinsic-size: auto 600px;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.result-card {
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-glass);
  background: var(--bg-card);
  transition: transform var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}

.result-card:hover {
  border-color: var(--border-glass-hover);
  transform: translateY(-3px);
}

.result-metric {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.result-title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.result-desc {
  color: var(--text-secondary);
  font-size: .875rem;
  line-height: 1.7;
}

.result-client {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-glass);
  font-size: .8125rem;
  color: var(--text-muted);
}

.result-client-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: .75rem;
  color: var(--text-secondary);
}

/* ---------- Portfolio / Proyectos ---------- */
.portfolio {
  padding: var(--space-5xl) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
  content-visibility: auto;
  contain-intrinsic-size: auto 2000px;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.portfolio-card {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-glass);
  background: var(--bg-card);
  overflow: hidden;
  transition: transform var(--duration-slow) var(--ease-out), border-color var(--duration-slow);
  contain: layout style paint;
}

.portfolio-card:hover {
  border-color: var(--border-glass-hover);
  transform: translateY(-3px);
}

.portfolio-img-wrap {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--bg-secondary);
}

.portfolio-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.portfolio-card:hover .portfolio-img-wrap img {
  transform: scale(1.06);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,15,.85) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  display: flex;
  align-items: flex-end;
  padding: var(--space-lg);
  pointer-events: none;
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay-tag {
  font-size: .75rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: 100px;
  background: rgba(28,198,126,.15);
  color: var(--accent-blue);
  border: 1px solid rgba(28,198,126,.25);
  font-weight: 600;
}

.portfolio-body {
  padding: var(--space-lg) var(--space-xl) var(--space-xl);
}

.portfolio-card h3 {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -.01em;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.portfolio-card p {
  color: var(--text-secondary);
  font-size: .875rem;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.portfolio-more {
  text-align: center;
  margin-top: var(--space-3xl);
}

/* ---------- Blog / Insights ---------- */
.insights {
  padding: var(--space-5xl) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
  content-visibility: auto;
  contain-intrinsic-size: auto 700px;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.insight-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-glass);
  background: var(--bg-card);
  overflow: hidden;
  transition: transform var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}

.insight-card:hover {
  border-color: var(--border-glass-hover);
  transform: translateY(-3px);
}

.insight-img {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, rgba(28,198,126,.15), rgba(32,228,146,.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--text-muted);
}

.insight-body {
  padding: var(--space-xl);
}

.insight-tag {
  font-size: .75rem;
  font-weight: 600;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: var(--space-sm);
}

.insight-card h3 {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -.01em;
  margin-bottom: var(--space-sm);
  line-height: 1.35;
}

.insight-card p {
  color: var(--text-secondary);
  font-size: .875rem;
  line-height: 1.7;
}

.insight-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  font-size: .75rem;
  color: var(--text-muted);
}

/* ---------- CTA + Contact Form Section ---------- */
.cta {
  padding: var(--space-5xl) 0;
  position: relative;
  overflow: hidden;
  content-visibility: auto;
  contain-intrinsic-size: auto 700px;
}

.cta::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 800px; height: 500px;
  background: var(--gradient-glow);
  pointer-events: none;
}

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

.cta-info {
  padding-top: var(--space-xl);
}

.cta-info h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.cta-info p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.cta-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.cta-detail {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-secondary);
  font-size: .95rem;
}

.cta-detail a {
  color: var(--accent-blue);
  transition: opacity .2s;
}

.cta-detail a:hover {
  opacity: .8;
}

/* Contact Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
}

.contact-form h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: var(--space-xl);
  color: var(--text-primary);
}

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

.form-group label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.form-group label span {
  color: var(--accent-blue);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  font-family: inherit;
  font-size: .9375rem;
  color: var(--text-primary);
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}

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

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(28,198,126,.12);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,.1);
}

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

.form-error {
  display: block;
  font-size: .8rem;
  color: #ef4444;
  margin-top: .25rem;
  min-height: 1.1em;
}

/* GDPR Checkbox */
.form-gdpr {
  margin-bottom: var(--space-xl);
}

.gdpr-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: .8125rem !important;
  font-weight: 400 !important;
  color: var(--text-muted) !important;
  line-height: 1.5;
}

.gdpr-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.gdpr-check {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-glass);
  border-radius: 4px;
  margin-top: 1px;
  transition: background .2s, border-color .2s;
  position: relative;
}

.gdpr-check::after {
  content: '';
  position: absolute;
  top: 2px; left: 5px;
  width: 5px; height: 9px;
  border: solid #0f0e1a;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  transition: transform .15s;
}

.gdpr-label input:checked + .gdpr-check {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.gdpr-label input:checked + .gdpr-check::after {
  transform: rotate(45deg) scale(1);
}

.gdpr-label input:focus-visible + .gdpr-check {
  box-shadow: 0 0 0 3px rgba(28,198,126,.2);
}

.gdpr-text a {
  color: var(--accent-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Submit Button */
.form-submit {
  width: 100%;
  justify-content: center;
  position: relative;
}

.form-submit-loading {
  display: none;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.form-submit.is-loading .form-submit-text,
.form-submit.is-loading .btn-icon {
  visibility: hidden;
}

.form-submit.is-loading .form-submit-loading {
  display: block;
}

/* Status Messages */
.form-status {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-top: var(--space-lg);
  font-size: .875rem;
}

.form-status svg {
  flex-shrink: 0;
}

.form-success {
  background: rgba(28,198,126,.08);
  border: 1px solid rgba(28,198,126,.2);
  color: var(--accent-blue);
}

.form-error-msg {
  background: rgba(239,68,68,.08);
  border: 1px solid rgba(239,68,68,.2);
  color: #ef4444;
}

.form-status.is-visible {
  display: flex;
}

/* Footer location */
.footer-location {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  font-size: .875rem;
  color: var(--text-muted);
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--border-glass);
  background: var(--bg-secondary);
}

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

.footer-brand p {
  color: var(--text-secondary);
  font-size: .875rem;
  margin-top: var(--space-md);
  max-width: 300px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: .8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

.footer-col a {
  display: block;
  font-size: .875rem;
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  transition: color var(--duration-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-glass);
  font-size: .8125rem;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  transition: color var(--duration-fast), border-color var(--duration-fast);
}

.footer-social a:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

/* ---------- Animations (Intersection Observer) ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 { transition-delay: 100ms; }
.stagger-2 { transition-delay: 200ms; }
.stagger-3 { transition-delay: 300ms; }
.stagger-4 { transition-delay: 400ms; }

/* Counter animation */
@keyframes count-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- RESPONSIVE ---------- */

/* Tablets */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  .results-grid,
  .insights-grid,
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
  .proof-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  .cta-info {
    text-align: center;
  }
  .cta-details {
    align-items: center;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10,10,15,.98);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-xl);
    z-index: 998;
    padding: var(--space-xl);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.25rem;
  }

  .menu-toggle {
    display: flex;
    z-index: 999;
  }

  .hero h1 {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero-stats {
    gap: var(--space-xl);
  }

  .hero-stat-number {
    font-size: 2rem;
  }

  .results-grid,
  .insights-grid,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .proof-metrics {
    grid-template-columns: 1fr 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .cta-wrapper {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: var(--space-xl);
  }

  .tech-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  .btn { width: 100%; justify-content: center; }
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .proof-metrics {
    grid-template-columns: 1fr;
  }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .fade-up {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Print ---------- */
@media print {
  .header, .footer, .menu-toggle, .cta { display: none; }
  body { background: #fff; color: #000; }
  .gradient-text {
    -webkit-text-fill-color: #000;
    background: none;
  }
}