:root {
  --color-bg: #101E2C;
  --color-bg-alt: #0D1926;
  --color-surface: #1E293B;
  --color-surface-hover: #243247;
  --color-text: #EBE8E1;
  --color-text-muted: rgba(235, 232, 225, 0.62);
  --color-text-faint: rgba(235, 232, 225, 0.38);
  --color-primary: #2563EB;
  --color-primary-hover: #3B82F6;
  --color-border: rgba(235, 232, 225, 0.1);
  --radius: 4px;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --container: 1200px;
  --header-height: 76px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

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

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h2 { font-size: clamp(1.75rem, 3.5vw, 2.6rem); }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-primary-hover);
  margin-bottom: 18px;
}

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary { background-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background-color: var(--color-primary-hover); }

.btn-ghost { background-color: transparent; border-color: var(--color-border); color: var(--color-text); }
.btn-ghost:hover { border-color: var(--color-text-faint); background-color: rgba(235, 232, 225, 0.04); }

.btn-sm { padding: 10px 18px; font-size: 0.82rem; }
.btn-lg { padding: 16px 32px; font-size: 0.95rem; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(16, 30, 44, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease;
}

.site-header.is-scrolled { border-bottom-color: var(--color-border); }

.header-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo { height: 26px; width: auto; }

.main-nav { display: flex; gap: 32px; }

.main-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.header-actions { display: flex; align-items: center; gap: 20px; }

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--color-text-faint);
  font: inherit;
  cursor: pointer;
  padding: 4px 2px;
  transition: color 0.2s ease;
}

.lang-btn:hover { color: var(--color-text-muted); }
.lang-btn.is-active { color: var(--color-primary-hover); }

.lang-sep { color: var(--color-text-faint); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: calc(var(--header-height) + 48px);
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(235, 232, 225, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(235, 232, 225, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 35%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 35%, #000 20%, transparent 75%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 45% at 28% 30%, rgba(37, 99, 235, 0.16), transparent 70%),
    radial-gradient(ellipse 40% 35% at 78% 60%, rgba(59, 130, 246, 0.08), transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 880px;
  padding-bottom: 48px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 100%;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 9px 16px;
  margin-bottom: 36px;
}

.hero-kicker span:last-child {
  min-width: 0;
  white-space: normal;
}

.hero-kicker-mark {
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-primary-hover);
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.75rem);
  font-weight: 800;
  margin-bottom: 24px;
}

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

.hero-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: 36px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.hero-clients {
  position: relative;
  margin-top: auto;
  padding-bottom: 40px;
}

.hero-clients-label {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 18px;
}

.marquee {
  overflow: hidden;
  padding-top: 48px;
  margin-top: -48px;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 36s linear infinite;
}

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

.marquee-group {
  display: flex;
  gap: 16px;
  padding-right: 16px;
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

.metrics {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

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

.metric-value {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--color-text);
}

.metric-label {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.section { padding: 120px 0; }

.section-alt { background-color: var(--color-bg-alt); }

.section-head { max-width: 720px; margin-bottom: 64px; }

.section-sub {
  margin-top: 20px;
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.card:hover {
  background-color: var(--color-surface-hover);
  border-color: rgba(59, 130, 246, 0.35);
  transform: translateY(-3px);
}

.card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-primary-hover);
  margin-bottom: 24px;
}

.card-icon svg { width: 22px; height: 22px; }

.card h3 { font-size: 1.12rem; margin-bottom: 12px; }

.card p { font-size: 0.94rem; color: var(--color-text-muted); }

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.team-card {
  display: flex;
  gap: 28px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.team-photo {
  flex-shrink: 0;
  width: 260px;
  align-self: stretch;
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.team-photo img { width: 100%; height: 100%; object-fit: cover; }

.team-info h3 { font-size: 1.25rem; margin-bottom: 6px; }

.team-role {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary-hover);
  margin-bottom: 16px;
}

.team-bio { font-size: 0.94rem; color: var(--color-text-muted); }

.team-links { display: flex; gap: 12px; margin-top: 16px; }

.team-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-primary-hover);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.team-links a svg { width: 18px; height: 18px; }

.team-links a:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.client-logo {
  position: relative;
  flex-shrink: 0;
  width: 180px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.25s ease, color 0.25s ease;
}

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

.client-logo::after {
  content: attr(data-name);
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background-color: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 6px 12px;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-text);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.client-logo:hover::after,
.client-logo:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.client-logo img {
  max-height: 32px;
  max-width: 72%;
  filter: brightness(0) invert(0.93);
  opacity: 0.65;
  transition: opacity 0.25s ease;
}

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

.model-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.model-col {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 32px;
}

.model-col-us {
  border-color: rgba(59, 130, 246, 0.45);
  background:
    linear-gradient(rgba(37, 99, 235, 0.07), rgba(37, 99, 235, 0.07)),
    var(--color-surface);
}

.model-col h3 {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.model-col-them h3 { color: var(--color-text-faint); }
.model-col-us h3 { color: var(--color-primary-hover); }

.model-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.model-col li {
  position: relative;
  padding: 16px 0 16px 34px;
  border-top: 1px solid var(--color-border);
  font-size: 0.94rem;
}

.model-col-them li { color: var(--color-text-muted); }

.model-col li::before {
  position: absolute;
  left: 2px;
  font-weight: 700;
}

.model-col-them li::before { content: "✕"; color: var(--color-text-faint); }
.model-col-us li::before { content: "✓"; color: var(--color-primary-hover); }

.model-note {
  margin-top: 36px;
  max-width: 640px;
  border-left: 2px solid var(--color-primary);
  padding-left: 18px;
  font-size: 1rem;
  color: var(--color-text-muted);
}

.process-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}

.process-step {
  border-top: 2px solid var(--color-primary);
  padding-top: 24px;
}

.process-number {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-primary-hover);
  display: block;
  margin-bottom: 14px;
}

.process-step h3 { font-size: 1.1rem; margin-bottom: 10px; }

.process-step p { font-size: 0.92rem; color: var(--color-text-muted); }

.cta-section {
  background:
    linear-gradient(rgba(16, 30, 44, 0.9), rgba(16, 30, 44, 0.9)),
    linear-gradient(rgba(235, 232, 225, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(235, 232, 225, 0.05) 1px, transparent 1px);
  background-size: auto, 72px 72px, 72px 72px;
  text-align: center;
}

.cta-inner { max-width: 680px; margin: 0 auto; }

.cta-sub {
  margin: 22px auto 40px;
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.cta-email {
  font-weight: 500;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-text-faint);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.cta-email:hover { color: var(--color-text); border-color: var(--color-text); }

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 72px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 64px;
}

.footer-brand p {
  margin-top: 20px;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  max-width: 320px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 18px;
}

.footer-nav, .footer-contact { display: flex; flex-direction: column; gap: 12px; }

.footer-nav a, .footer-contact a {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

.footer-nav a:hover, .footer-contact a:hover { color: var(--color-text); }

.footer-contact p { font-size: 0.92rem; color: var(--color-text-muted); }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
  padding-bottom: 28px;
  font-size: 0.85rem;
  color: var(--color-text-faint);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee { overflow-x: auto; }
  .marquee-track { animation: none; }
}

@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); row-gap: 48px; }
  .team-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav, .header-cta { display: none; }
  .nav-toggle { display: flex; }

  .site-header.nav-open .main-nav {
    display: flex;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 24px 20px;
  }

  .site-header.nav-open .main-nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1rem;
  }

  .site-header.nav-open .main-nav a:last-child { border-bottom: none; }

  .section { padding: 80px 0; }
  .hero { padding-top: calc(var(--header-height) + 32px); }
  .hero-inner { padding-bottom: 40px; }
  .model-compare { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 560px) {
  .card-grid { grid-template-columns: 1fr; }
  .team-card { flex-direction: column; }
  .team-photo { width: 100%; height: 300px; }
  .hero-kicker { font-size: 0.75rem; padding: 8px 14px; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .hero-clients { padding-bottom: 36px; }
  .client-logo { width: 150px; height: 60px; }
}

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

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  text-align: left;
  margin-top: 36px;
}

.contact-form[hidden] { display: none; }

.cf-hp { display: none; }

.cf-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.cf-field { display: flex; flex-direction: column; gap: 8px; }

.cf-field > span {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.cf-field input,
.cf-field select,
.cf-field textarea {
  width: 100%;
  padding: 13px 14px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.cf-field textarea { resize: vertical; min-height: 110px; }

.cf-field input::placeholder,
.cf-field textarea::placeholder { color: var(--color-text-faint); }

.cf-field input:focus,
.cf-field select:focus,
.cf-field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.22);
}

.cf-error {
  color: #F87171;
  font-size: 0.88rem;
  margin: -4px 0 0;
}

.contact-form .btn { align-self: flex-start; }
.contact-form .btn:disabled { opacity: 0.6; cursor: not-allowed; }

.cf-fallback {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.contact-success { margin-top: 36px; }
.contact-success h3 { font-family: var(--font-heading); font-size: 1.4rem; margin-bottom: 10px; }
.contact-success p { color: var(--color-text-muted); margin-bottom: 20px; }

@media (max-width: 640px) {
  .cf-row { grid-template-columns: 1fr; }
  .contact-form .btn { align-self: stretch; text-align: center; }
}

@media (max-width: 560px) {
  .card-grid.ai-grid { grid-template-columns: 1fr; }
}

.cf-field .iti { width: 100%; }

.iti {
  --iti-border-color: var(--color-border);
  --iti-dropdown-bg: var(--color-surface-hover);
  --iti-hover-color: rgba(235, 232, 225, 0.07);
  --iti-dialcode-color: var(--color-text-muted);
  --iti-arrow-color: var(--color-text-muted);
  --iti-search-icon-color: var(--color-text-muted);
}

.iti--fullscreen-popup .iti__dropdown-content,
.iti__dropdown-content {
  --iti-dropdown-bg: var(--color-surface-hover);
  --iti-hover-color: rgba(235, 232, 225, 0.07);
  --iti-dialcode-color: var(--color-text-muted);
  --iti-search-icon-color: var(--color-text-muted);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.iti__search-input {
  background-color: var(--color-surface);
  border: 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 11px 14px;
}

.iti__search-input::placeholder { color: var(--color-text-faint); }
.iti__search-input:focus { outline: none; }

.iti__selected-country { padding-left: 4px; }
.iti__country-name { color: var(--color-text); }