@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ============ Design tokens ============ */
:root {
  --bg-dark:        #070C16;
  --bg-navy:        #0B1220;
  --bg-navy-2:      #111A2E;
  --bg-light:       #F8FAFC;
  --bg-surface:     #EEF2F7;
  --text-on-light:  #0F172A;
  --muted-on-light: #475569;
  --text-on-dark:   #E2E8F0;
  --muted-on-dark:  #94A3B8;
  --accent:         #22D3EE;   /* cyan: on dark backgrounds */
  --accent-strong:  #0369A1;   /* deep blue: on light backgrounds */
  --accent-2:       #3B82F6;
  --line-dark:      rgba(148, 163, 184, 0.16);
  --line-light:     #D8DEE8;

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Plus Jakarta Sans', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;

  --pad-x: clamp(1.25rem, 5vw, 5rem);
  --max-w: 1320px;
  --ease: cubic-bezier(.22, 1, .36, 1);

  --z-header: 50;
  --z-loader: 100;
}

/* ============ Base ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; }
.scroll-section { overflow-x: clip; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text-on-light);
  background: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
.mono { font-family: var(--font-mono); font-size: 0.8em; letter-spacing: 0.02em; }
.accent { color: var(--accent); }
.container { width: 100%; max-width: calc(var(--max-w) + var(--pad-x) * 2); margin: 0 auto; padding: 0 var(--pad-x); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ============ Loader ============ */
#loader {
  position: fixed; inset: 0; z-index: var(--z-loader);
  background: var(--bg-dark);
  display: grid; place-items: center;
}
.loader-inner { display: grid; gap: 1.25rem; justify-items: center; }
.loader-logo {
  font-family: var(--font-display); font-weight: 700; letter-spacing: 0.3em;
  color: var(--text-on-dark); font-size: 1.1rem;
}
.loader-track { width: 180px; height: 2px; background: var(--line-dark); overflow: hidden; border-radius: 2px; }
.loader-bar { width: 0; height: 100%; background: linear-gradient(90deg, var(--accent-2), var(--accent)); }

/* ============ Header ============ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-header);
  padding: 1.1rem var(--pad-x);
  transition: background .3s var(--ease), padding .3s var(--ease), border-color .3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(7, 12, 22, 0.94);
  padding-top: .75rem; padding-bottom: .75rem;
  border-bottom-color: var(--line-dark);
}
.nav { max-width: var(--max-w); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.logo {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-display); font-weight: 700; font-size: 1.25rem;
  letter-spacing: 0.14em; color: var(--text-on-dark);
}
.logo-mark { width: 30px; height: 30px; color: var(--accent); }
.logo-mark svg { width: 100%; height: 100%; }
.nav-links { display: flex; align-items: center; gap: 2.25rem; }
.nav-links a {
  color: var(--muted-on-dark); font-size: .95rem; font-weight: 500;
  transition: color .2s;
}
.nav-links a:hover { color: var(--text-on-dark); }
.nav-links .nav-cta {
  color: var(--bg-dark); background: var(--accent);
  padding: .6rem 1.2rem; border-radius: 999px; font-weight: 600;
  transition: background .2s, color .2s;
}
.nav-links .nav-cta:hover { background: #fff; color: var(--bg-dark); }
.nav-toggle {
  display: none; width: 44px; height: 44px; background: none; border: 0; cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute; left: 11px; right: 11px; height: 2px; background: var(--text-on-dark);
  transition: transform .3s var(--ease);
}
.nav-toggle span:first-child { top: 17px; }
.nav-toggle span:last-child { top: 25px; }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ============ Shared section type ============ */
.section-label {
  display: inline-block;
  font-family: var(--font-mono); font-size: .8rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: 1.5rem;
}
.section-heading {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.5rem, 5.5vw, 5rem);
  line-height: 1.02; letter-spacing: -0.035em;
  margin-bottom: 1.75rem;
}
.section-heading .muted { color: var(--muted-on-light); }
.section-body { color: var(--muted-on-light); max-width: 58ch; font-size: 1.125rem; }
.section-body + .section-body { margin-top: 1rem; }

/* dark-context overrides */
.hero-section .section-label,
.section-services .section-label,
.section-stats .section-label,
.section-cta .section-label { color: var(--accent); }
.section-services .section-heading,
.section-cta .section-heading { color: #fff; }
.section-services .section-body,
.section-cta .section-body { color: var(--muted-on-dark); }

/* ============ Buttons ============ */
.cta-button {
  display: inline-flex; align-items: center; gap: .75rem;
  background: var(--accent); color: var(--bg-dark);
  font-family: var(--font-display); font-weight: 600; font-size: 1.05rem;
  padding: 1rem 1.6rem; border-radius: 999px;
  cursor: pointer; position: relative; overflow: hidden; isolation: isolate;
  transition: color .3s var(--ease), box-shadow .3s var(--ease);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0);
}
.cta-button::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: #fff; transform: translateY(101%);
  transition: transform .35s var(--ease);
}
.cta-button:hover::before { transform: translateY(0); }
.cta-button:hover { box-shadow: 0 10px 40px -10px rgba(34, 211, 238, .55); }
.cta-button svg { width: 20px; height: 20px; transition: transform .3s var(--ease); }
.cta-button:hover svg { transform: translateX(4px); }
.link-button {
  color: var(--text-on-dark); font-weight: 500;
  border-bottom: 1px solid var(--line-dark); padding-bottom: 2px;
  transition: border-color .2s, color .2s;
}
.link-button:hover { border-color: var(--accent); color: #fff; }

/* ============ Hero ============ */
.hero-section {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center;
  padding: 7rem var(--pad-x) 6rem;
  background-color: var(--bg-dark);
  background-image: url('../assets/hero-bg.webp');
  background-size: cover;
  background-position: right center;
  color: var(--text-on-dark);
  overflow: hidden;
}
.hero-section::before {
  content: ''; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(7,12,22,.96) 0%, rgba(7,12,22,.75) 45%, rgba(7,12,22,.15) 100%),
    linear-gradient(to bottom, rgba(7,12,22,.4) 0%, rgba(7,12,22,0) 30%, rgba(7,12,22,.9) 100%);
}
.hero-section::after { /* faint tech grid */
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at 20% 50%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 20% 50%, #000 0%, transparent 70%);
  opacity: .35;
}
.hero-inner { position: relative; z-index: 1; width: 100%; max-width: var(--max-w); margin: 0 auto; }
.hero-heading {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(4rem, 11vw, 11rem);
  line-height: .92; letter-spacing: -0.05em;
  color: #fff; max-width: 11ch;
  margin-bottom: 2rem;
}
.word-wrap { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .06em; margin-right: .18em; }
.word { display: inline-block; }
.hero-tagline { max-width: 46ch; font-size: clamp(1.05rem, 1.4vw, 1.25rem); color: var(--muted-on-dark); margin-bottom: 2.5rem; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.75rem; }
.scroll-indicator {
  position: absolute; z-index: 1; bottom: 2rem; left: var(--pad-x);
  display: flex; align-items: center; gap: .6rem;
  font-family: var(--font-mono); font-size: .75rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--muted-on-dark);
}
.scroll-indicator svg { width: 18px; height: 18px; animation: bob 2s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(5px); } }

/* ============ Marquee ============ */
.marquee-wrap {
  background: var(--bg-dark); overflow: hidden;
  padding: 2.5rem 0; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark);
}
.marquee-text {
  font-family: var(--font-display); font-weight: 700;
  font-size: 12vw; line-height: 1; letter-spacing: -0.04em;
  white-space: nowrap; will-change: transform;
  color: transparent; -webkit-text-stroke: 1.5px rgba(226, 232, 240, .28);
}
.marquee-text i { font-style: normal; color: var(--accent); -webkit-text-stroke: 0; padding: 0 .15em; }
.marquee-light { background: var(--bg-light); border-color: var(--line-light); }
.marquee-light .marquee-text { -webkit-text-stroke: 0; color: var(--text-on-light); }
.marquee-light .marquee-text i { color: var(--accent-strong); }
.marquee-reverse { transform: translateX(-35%); }

/* ============ Intro ============ */
.section-intro { background: var(--bg-light); padding: clamp(6rem, 12vw, 10rem) var(--pad-x); }
.intro-grid {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(3rem, 6vw, 6rem); align-items: center;
}
.intro-media { position: relative; border-radius: 20px; overflow: hidden; aspect-ratio: 4 / 5; background: var(--bg-navy); }
.intro-media img { width: 100%; height: 100%; object-fit: cover; }
.intro-media figcaption {
  position: absolute; left: 1rem; right: 1rem; bottom: 1rem;
  display: flex; align-items: center; gap: .75rem;
  background: var(--bg-dark); color: var(--text-on-dark);
  font-size: .85rem; padding: .8rem 1rem; border-radius: 12px;
}
.intro-media figcaption .mono { color: var(--accent); }
.intro-media figcaption::before {
  content: ''; width: 8px; height: 8px; border-radius: 50%; background: #34D399;
  box-shadow: 0 0 0 4px rgba(52, 211, 153, .2);
}

/* ============ Services ============ */
.section-services {
  background: var(--bg-navy); color: var(--text-on-dark);
  padding: clamp(6rem, 12vw, 10rem) 0;
  position: relative;
}
.services-head { display: grid; grid-template-columns: 1fr 1fr; column-gap: 4rem; align-items: end; margin-bottom: 4.5rem; }
.services-head .section-label { grid-column: 1 / -1; }
.services-head .section-heading { margin-bottom: 0; }
.services-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark);
}
.service-card {
  position: relative; padding: 2.25rem 1.75rem 2.5rem;
  border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark);
  transition: background .3s var(--ease);
  min-height: 300px; display: flex; flex-direction: column;
}
.service-card::after {
  content: ''; position: absolute; left: 0; top: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  transition: width .45s var(--ease);
}
.service-card:hover { background: var(--bg-navy-2); }
.service-card:hover::after { width: 100%; }
.service-num { color: var(--muted-on-dark); display: block; margin-bottom: 2.5rem; }
.service-icon { width: 36px; height: 36px; color: var(--accent); margin-bottom: 1.5rem; }
.service-card h3 { font-family: var(--font-display); font-size: 1.35rem; font-weight: 600; color: #fff; margin-bottom: .75rem; letter-spacing: -0.01em; line-height: 1.2; }
.service-card p { color: var(--muted-on-dark); font-size: .98rem; line-height: 1.6; }

/* ============ Approach ============ */
.section-approach { background: var(--bg-light); padding: clamp(6rem, 12vw, 10rem) 0; }
.approach-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 6vw, 6rem); align-items: start; }
.align-right .approach-grid > .section-inner { order: 2; position: sticky; top: 8rem; }
.steps { order: 1; counter-reset: step; }
.step {
  display: grid; grid-template-columns: 4rem 1fr; gap: 1rem;
  padding: 2rem 0; border-top: 1px solid var(--line-light);
}
.step:last-child { border-bottom: 1px solid var(--line-light); }
.step-num { color: var(--accent-strong); font-size: .9rem; padding-top: .35rem; }
.step h3 { font-family: var(--font-display); font-size: clamp(1.6rem, 2.6vw, 2.25rem); font-weight: 600; letter-spacing: -0.02em; margin-bottom: .35rem; }
.step p { color: var(--muted-on-light); }

/* ============ Stats ============ */
.section-stats {
  position: relative; color: var(--text-on-dark);
  padding: clamp(6rem, 12vw, 10rem) 0;
  background: url('../assets/section-accent.webp') center / cover fixed, var(--bg-dark);
}
.stats-overlay { position: absolute; inset: 0; background: rgba(7, 12, 22, 0.9); }
.stats-inner { position: relative; z-index: 1; text-align: center; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-top: 2.5rem; }
.stat { display: flex; flex-direction: column; align-items: center; gap: .75rem; padding: 1rem; }
.stat + .stat { border-left: 1px solid var(--line-dark); }
.stat-figure { display: flex; align-items: baseline; gap: .15em; }
.stat-number {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(3.5rem, 7vw, 6.5rem); line-height: 1; letter-spacing: -0.04em;
  color: var(--accent); font-variant-numeric: tabular-nums;
}
.stat-label { color: var(--muted-on-dark); font-size: .95rem; max-width: 18ch; }

/* ============ Company ============ */
.section-company { background: var(--bg-surface); padding: clamp(6rem, 12vw, 10rem) 0; }
.company-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 6vw, 6rem); align-items: center; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line-light); border: 1px solid var(--line-light); border-radius: 16px; overflow: hidden; }
.fact { background: var(--bg-light); padding: 1.5rem 1.5rem 1.6rem; }
.fact dt { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-on-light); margin-bottom: .5rem; }
.fact dd { font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; color: var(--text-on-light); line-height: 1.3; }
.fact dd .mono { color: var(--accent-strong); font-weight: 500; }

/* ============ CTA ============ */
.section-cta {
  position: relative; color: var(--text-on-dark);
  min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center;
  padding: 8rem 0;
  background-color: var(--bg-dark);
  background-image: url('../assets/cta-bg.webp');
  background-size: cover; background-position: center 60%;
}
.section-cta::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(7,12,22,.85) 0%, rgba(7,12,22,.55) 55%, rgba(7,12,22,.85) 100%);
}
.cta-inner { position: relative; z-index: 1; text-align: center; display: flex; flex-direction: column; align-items: center; }
.cta-heading { font-size: clamp(3rem, 9vw, 8.5rem); line-height: .95; letter-spacing: -0.05em; max-width: 12ch; }
.section-cta .section-body { margin: 0 auto 2.75rem; text-align: center; }
.cta-large { font-size: clamp(1.1rem, 2vw, 1.4rem); padding: 1.25rem 2.2rem; }
.cta-meta { margin-top: 2rem; color: var(--muted-on-dark); letter-spacing: .15em; text-transform: uppercase; }

/* ============ Footer ============ */
.site-footer { background: var(--bg-dark); color: var(--muted-on-dark); border-top: 1px solid var(--line-dark); padding: 3rem 0; }
.footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 2rem 3rem; align-items: center; }
.footer-brand p { font-size: .95rem; margin-top: .35rem; }
.footer-links { display: flex; gap: 2rem; }
.footer-links a { transition: color .2s; }
.footer-links a:hover { color: var(--accent); }
.footer-legal { grid-column: 1 / -1; font-size: .85rem; padding-top: 2rem; border-top: 1px solid var(--line-dark); }

/* ============ Responsive ============ */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card { min-height: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 3rem; }
  .stat:nth-child(3) { border-left: 0; }
}
@media (max-width: 900px) {
  .intro-grid, .approach-grid, .company-grid, .services-head { grid-template-columns: 1fr; }
  .services-head .section-heading { margin-bottom: 1.5rem; }
  .intro-media { aspect-ratio: 16 / 11; }
  .align-right .approach-grid > .section-inner { order: 0; position: static; }
  .steps { order: 1; }
}
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; top: 0; left: 0; right: 0; height: 100vh; height: 100dvh;
    flex-direction: column; justify-content: center; gap: 2rem;
    background: var(--bg-dark);
    opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s;
    z-index: -1;
  }
  .nav-links.open { opacity: 1; visibility: visible; }
  .nav-links a { font-size: 1.5rem; color: var(--text-on-dark); }
  .hero-section { background-position: 70% center; }
  .hero-section::before { background: linear-gradient(to bottom, rgba(7,12,22,.7), rgba(7,12,22,.92)); }
  .section-stats { background-attachment: scroll; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .stat + .stat { border-left: 0; }
  .facts { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; gap: 1.25rem; }
  .marquee-wrap { padding: 1.5rem 0; }
  .marquee-text { font-size: 18vw; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .section-stats { background-attachment: scroll; }
}