/* ═══════════════════════════════════════════════════════════════
   XERTAB — Design System
   Dark, premium, AI-grade aesthetic
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* palette */
  --bg: #05070d;
  --bg-2: #0a0e18;
  --bg-3: #0e1424;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --text: #eef2f8;
  --text-2: #9aa7bd;
  --text-3: #5d6b84;
  --accent: #38bdf8;
  --accent-2: #6366f1;
  --accent-3: #22d3ee;
  --gradient: linear-gradient(100deg, #38bdf8 0%, #6366f1 55%, #a855f7 100%);
  --gradient-soft: linear-gradient(100deg, rgba(56,189,248,.16), rgba(99,102,241,.16), rgba(168,85,247,.16));

  /* type */
  --font-display: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* rhythm */
  --container: 1240px;
  --radius: 18px;
  --radius-lg: 28px;
  --nav-h: 84px;

  /* motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur: 0.7s;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html:focus-within { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul { list-style: none; }
::selection { background: rgba(56, 189, 248, 0.35); color: #fff; }

/* grain overlay */
body::after {
  content: '';
  position: fixed; inset: -50%;
  pointer-events: none; z-index: 2000;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: 0.028;
  animation: grain 9s steps(10) infinite;
}
@keyframes grain {
  0%,100% { transform: translate(0,0); } 10% { transform: translate(-3%,-5%); }
  30% { transform: translate(4%,2%); } 50% { transform: translate(-4%,6%); }
  70% { transform: translate(5%,-3%); } 90% { transform: translate(-2%,4%); }
}

/* ── Layout ────────────────────────────────────────────────── */
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.container--narrow { width: min(880px, calc(100% - 48px)); }
.section { padding: clamp(90px, 11vw, 150px) 0; position: relative; }

/* ── Typography helpers ────────────────────────────────────── */
.section__tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--accent);
  padding: 8px 16px; border: 1px solid rgba(56,189,248,.25); border-radius: 100px;
  background: rgba(56,189,248,.06);
  margin-bottom: 26px;
}
.section__tag::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.section__tag--light { color: #cfe9ff; border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.08); }
.section__tag--light::before { background: #fff; box-shadow: 0 0 12px #fff; }

.section__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 4.6vw, 58px);
  font-weight: 700; line-height: 1.08; letter-spacing: -0.02em;
}
.section__title em {
  font-style: normal;
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section__desc { color: var(--text-2); font-size: 17px; max-width: 480px; margin-top: 20px; }
.section__head { max-width: 760px; margin-bottom: clamp(48px, 6vw, 80px); }
.section__head--split {
  max-width: none; display: flex; align-items: flex-end; justify-content: space-between;
  gap: 40px; flex-wrap: wrap;
}
.section__head--split .section__desc { margin-top: 0; padding-bottom: 8px; }

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

.link-arrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 15px; color: var(--accent);
  margin-top: 28px; position: relative;
}
.link-arrow svg { width: 18px; height: 18px; transition: transform 0.4s var(--ease-out); }
.link-arrow::after {
  content: ''; position: absolute; left: 0; bottom: -4px; height: 1px; width: 100%;
  background: var(--accent); transform: scaleX(0); transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}
.link-arrow:hover::after { transform: scaleX(1); transform-origin: left; }
.link-arrow:hover svg { transform: translateX(5px); }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  gap: 12px; font-family: var(--font-display); font-weight: 600; font-size: 15px;
  padding: 15px 30px; border-radius: 100px; overflow: hidden;
  transition: transform 0.35s var(--ease-spring), box-shadow 0.35s ease, background 0.35s ease, color 0.35s ease, border-color 0.35s ease;
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; transition: transform 0.4s var(--ease-out); }
.btn:hover svg { transform: translateX(4px); }
.btn--sm { padding: 11px 22px; font-size: 14px; }
.btn--lg { padding: 18px 38px; font-size: 16px; }
.btn--block { width: 100%; }

.btn--primary { color: #051018; background: var(--gradient); background-size: 160% 100%; box-shadow: 0 8px 30px -8px rgba(56, 189, 248, 0.55); }
.btn--primary:hover { background-position: 90% 0; box-shadow: 0 14px 44px -8px rgba(99, 102, 241, 0.65); }

.btn--ghost { color: var(--text); border: 1px solid var(--line-2); background: var(--surface); backdrop-filter: blur(8px); }
.btn--ghost:hover { border-color: rgba(56,189,248,.5); background: rgba(56,189,248,.08); }

.btn--light { color: #0a1220; background: #fff; box-shadow: 0 10px 34px -10px rgba(255,255,255,.4); }
.btn--light:hover { box-shadow: 0 16px 48px -10px rgba(255,255,255,.55); }

/* ── Preloader ─────────────────────────────────────────────── */
.preloader {
  position: fixed; inset: 0; z-index: 3000;
  background: var(--bg);
  display: grid; place-items: center;
  transition: opacity 0.7s ease, visibility 0.7s;
}
.preloader.is-done { opacity: 0; visibility: hidden; }
.preloader__inner { display: grid; place-items: center; gap: 26px; }
.preloader__logo { width: 150px; animation: pulse-logo 1.4s ease-in-out infinite; }
@keyframes pulse-logo { 0%,100% { opacity: 1; } 50% { opacity: 0.45; } }
.preloader__bar { width: 180px; height: 2px; background: var(--line); border-radius: 2px; overflow: hidden; }
.preloader__bar span { display: block; height: 100%; width: 40%; background: var(--gradient); border-radius: 2px; animation: load-slide 1.1s var(--ease-out) infinite; }
@keyframes load-slide { 0% { transform: translateX(-120%); } 100% { transform: translateX(480%); } }

/* ── Custom cursor ─────────────────────────────────────────── */
.cursor-dot, .cursor-ring { position: fixed; top: 0; left: 0; pointer-events: none; z-index: 2500; border-radius: 50%; }
.cursor-dot { width: 7px; height: 7px; background: var(--accent); transform: translate(-50%, -50%); }
.cursor-ring {
  width: 38px; height: 38px; border: 1.5px solid rgba(56,189,248,.5);
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-out), height 0.3s var(--ease-out), border-color 0.3s, background 0.3s;
}
.cursor-ring.is-hover { width: 62px; height: 62px; border-color: rgba(56,189,248,.9); background: rgba(56,189,248,.08); }
@media (hover: none), (pointer: coarse) { .cursor-dot, .cursor-ring { display: none; } }

/* ── Scroll progress ───────────────────────────────────────── */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2.5px; width: 100%;
  background: var(--gradient); transform-origin: left; transform: scaleX(0);
  z-index: 1600;
}

/* ── Navigation ────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1500;
  padding-top: env(safe-area-inset-top, 0px);
  transition: background 0.45s ease, box-shadow 0.45s ease, transform 0.45s var(--ease-out);
}
.nav.is-scrolled {
  background: rgba(5, 7, 13, 0.78);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  box-shadow: 0 1px 0 var(--line), 0 18px 50px -20px rgba(0,0,0,.7);
}
.nav.is-hidden { transform: translateY(-100%); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }
.nav__logo img { width: 132px; height: auto; transition: transform 0.4s var(--ease-out); }
.nav__logo:hover img { transform: scale(1.04); }
.nav__links { display: flex; align-items: center; gap: 6px; }
.nav__link {
  position: relative; padding: 10px 16px; font-size: 14.5px; font-weight: 500;
  color: var(--text-2); border-radius: 100px; transition: color 0.3s;
}
.nav__link::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 1.5px;
  background: var(--gradient); border-radius: 2px;
  transform: scaleX(0); transform-origin: right; transition: transform 0.4s var(--ease-out);
}
.nav__link:hover, .nav__link.is-active { color: var(--text); }
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); transform-origin: left; }
.nav__cta { margin-left: 14px; }
.nav__cta::after { display: none; }

.nav__burger { display: none; position: relative; z-index: 1700; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-2); }
.nav__burger span {
  position: absolute; left: 12px; right: 12px; height: 1.8px; background: var(--text);
  border-radius: 2px; transition: transform 0.4s var(--ease-out), opacity 0.3s, top 0.4s var(--ease-out);
}
.nav__burger span:nth-child(1) { top: 15px; }
.nav__burger span:nth-child(2) { top: 21px; }
.nav__burger span:nth-child(3) { top: 27px; }
.nav__burger.is-open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;   /* fallback for browsers without svh */
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: calc(var(--nav-h) + env(safe-area-inset-top, 0px) + 40px) 0 80px;
  overflow: hidden;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.85; }
.hero__glow { position: absolute; border-radius: 50%; filter: blur(110px); pointer-events: none; }
.hero__glow--1 { width: 620px; height: 620px; top: -180px; right: -120px; background: radial-gradient(circle, rgba(99,102,241,.28), transparent 65%); }
.hero__glow--2 { width: 520px; height: 520px; bottom: -200px; left: -140px; background: radial-gradient(circle, rgba(56,189,248,.2), transparent 65%); }

.hero__inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(40px, 5vw, 70px);
  align-items: center;
}

.hero__badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent-3); padding: 9px 18px; border-radius: 100px;
  border: 1px solid rgba(34, 211, 238, 0.28); background: rgba(34, 211, 238, 0.06);
  margin-bottom: 30px;
}
.hero__badge-pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-3); box-shadow: 0 0 0 0 rgba(34,211,238,.6); animation: pulse-dot 2.2s infinite; }
@keyframes pulse-dot { 0% { box-shadow: 0 0 0 0 rgba(34,211,238,.55); } 70% { box-shadow: 0 0 0 10px rgba(34,211,238,0); } 100% { box-shadow: 0 0 0 0 rgba(34,211,238,0); } }

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(42px, 5.6vw, 74px);
  font-weight: 800; line-height: 1.04; letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.hero__title-line { display: block; overflow: hidden; padding-bottom: 0.08em; margin-bottom: -0.08em; }
.hero__title-line > span {
  display: inline-block;
  transform: translateY(0);            /* visible by default */
  animation: rise 1s var(--ease-out) both;
}
.hero__title-line:nth-child(2) > span { animation-delay: 0.12s; }
.hero__title-line:nth-child(3) > span { animation-delay: 0.24s; }
@keyframes rise { from { transform: translateY(110%); } to { transform: translateY(0); } }

.hero__lead { color: var(--text-2); font-size: clamp(16px, 1.4vw, 18.5px); max-width: 520px; margin-bottom: 38px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 52px; }

.hero__meta { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; }
.hero__meta-item { display: grid; gap: 2px; }
.hero__meta-item strong { font-family: var(--font-display); font-size: 30px; font-weight: 700; }
.hero__meta-item strong::after { content: '+'; color: var(--accent); }
.hero__meta-item span { font-size: 12.5px; color: var(--text-3); letter-spacing: 0.06em; text-transform: uppercase; }
.hero__meta-divider { width: 1px; height: 40px; background: var(--line-2); }

.hero__visual { perspective: 1200px; }
.hero__visual-frame {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line-2);
  box-shadow: 0 40px 90px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(255,255,255,.04) inset, 0 0 80px -30px rgba(56,189,248,.35);
  transform-style: preserve-3d;
  transition: transform 0.2s ease-out;
  background: var(--bg-2);
}
.hero__visual-frame img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.hero__visual-scan {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(56,189,248,.14) 48%, rgba(56,189,248,.3) 50%, rgba(56,189,248,.14) 52%, transparent 100%);
  background-size: 100% 240%;
  animation: scan 5.5s linear infinite;
  mix-blend-mode: screen;
}
@keyframes scan { 0% { background-position: 0 -120%; } 100% { background-position: 0 120%; } }

.hero__chip {
  position: absolute; display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.04em; color: #d6f3ff;
  background: rgba(8, 14, 26, 0.82); border: 1px solid rgba(56,189,248,.35);
  padding: 9px 14px; border-radius: 12px; backdrop-filter: blur(10px);
  box-shadow: 0 14px 34px -12px rgba(0,0,0,.7);
  animation: float-chip 5s ease-in-out infinite;
}
.hero__chip--1 { top: 18px; left: 18px; }
.hero__chip--2 { bottom: 18px; right: 18px; animation-delay: 2.4s; }
.hero__chip-dot { width: 7px; height: 7px; border-radius: 50%; background: #34d399; box-shadow: 0 0 10px #34d399; }
@keyframes float-chip { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.hero__scroll {
  position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%);
  display: grid; justify-items: center; gap: 10px; z-index: 3;
}
.hero__scroll-track { width: 24px; height: 40px; border: 1.5px solid var(--line-2); border-radius: 14px; display: flex; justify-content: center; padding-top: 7px; }
.hero__scroll-thumb { width: 3px; height: 8px; border-radius: 3px; background: var(--accent); animation: scroll-hint 1.8s var(--ease-out) infinite; }
@keyframes scroll-hint { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(14px); opacity: 0; } 100% { transform: translateY(0); opacity: 0; } }
.hero__scroll-text { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-3); }

/* ── Marquee ───────────────────────────────────────────────── */
.marquee {
  border-block: 1px solid var(--line);
  padding: 26px 0; overflow: hidden; position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,.015), transparent);
}
.marquee::before, .marquee::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 140px; z-index: 2; pointer-events: none;
}
.marquee::before { left: 0; background: linear-gradient(90deg, var(--bg), transparent); }
.marquee::after { right: 0; background: linear-gradient(-90deg, var(--bg), 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; align-items: center; gap: 44px; padding-right: 44px; }
.marquee__group span {
  font-family: var(--font-display); font-size: 21px; font-weight: 600; white-space: nowrap;
  color: transparent; -webkit-text-stroke: 1px rgba(238,242,248,.4);
  transition: color 0.3s;
}
.marquee__group span:hover { color: var(--accent); -webkit-text-stroke-color: transparent; }
.marquee__group i { color: var(--accent); font-size: 10px; font-style: normal; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ── Intro ─────────────────────────────────────────────────── */
.intro__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 5vw, 80px); }
.intro__lead {
  font-family: var(--font-display); font-size: clamp(21px, 2.2vw, 27px);
  font-weight: 500; line-height: 1.45; letter-spacing: -0.01em;
}
.intro__body { color: var(--text-2); font-size: 16.5px; }
.intro__body p + p { margin-top: 18px; }

/* ── Services ──────────────────────────────────────────────── */
.services { background: linear-gradient(180deg, transparent, rgba(10,14,24,.7) 18%, rgba(10,14,24,.7) 82%, transparent); }
.services__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }

.service-card {
  position: relative; padding: 40px 36px 34px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line);
  overflow: hidden; isolation: isolate;
  transition: transform 0.5s var(--ease-out), border-color 0.4s, background 0.4s;
}
.service-card:hover { transform: translateY(-8px); border-color: rgba(56,189,248,.35); background: var(--surface-2); }
.service-card__num {
  position: absolute; top: 26px; right: 30px;
  font-family: var(--font-display); font-size: 54px; font-weight: 800; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.12);
  transition: -webkit-text-stroke-color 0.4s;
}
.service-card:hover .service-card__num { -webkit-text-stroke-color: rgba(56,189,248,.55); }
.service-card__icon {
  width: 62px; height: 62px; border-radius: 18px; display: grid; place-items: center;
  background: var(--gradient-soft); border: 1px solid rgba(56,189,248,.25);
  color: var(--accent); margin-bottom: 26px;
  transition: transform 0.5s var(--ease-spring);
}
.service-card:hover .service-card__icon { transform: scale(1.08) rotate(-4deg); }
.service-card__icon svg { width: 30px; height: 30px; }
.service-card h3 { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.01em; }
.service-card p { color: var(--text-2); font-size: 15px; margin-bottom: 22px; }
.service-card__tags { display: flex; gap: 8px; flex-wrap: wrap; }
.service-card__tags span {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.05em;
  color: var(--text-2); padding: 5px 12px; border-radius: 100px; border: 1px solid var(--line);
}
.service-card__glow {
  position: absolute; width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(56,189,248,.16), transparent 65%);
  top: var(--gy, 50%); left: var(--gx, 50%); transform: translate(-50%, -50%);
  opacity: 0; transition: opacity 0.4s; pointer-events: none; z-index: -1;
}
.service-card:hover .service-card__glow { opacity: 1; }

/* ── Why us ────────────────────────────────────────────────── */
.why__grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(40px, 6vw, 90px); align-items: start; }
.why__sticky { position: sticky; top: calc(var(--nav-h) + 30px); }
.why__sticky .btn { margin-top: 34px; }
.why__list { display: grid; gap: 14px; }
.why__item {
  display: flex; gap: 22px; padding: 28px 30px;
  border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface);
  transition: transform 0.45s var(--ease-out), border-color 0.35s, background 0.35s;
}
.why__item:hover { transform: translateX(10px); border-color: rgba(56,189,248,.3); background: var(--surface-2); }
.why__item-icon {
  flex-shrink: 0; width: 48px; height: 48px; border-radius: 14px;
  display: grid; place-items: center; color: var(--accent);
  background: var(--gradient-soft); border: 1px solid rgba(56,189,248,.22);
}
.why__item-icon svg { width: 23px; height: 23px; }
.why__item h3 { font-family: var(--font-display); font-size: 17.5px; font-weight: 600; margin-bottom: 6px; }
.why__item p { color: var(--text-2); font-size: 14.5px; }

/* ── Process ───────────────────────────────────────────────── */
.process__track { position: relative; }
.process__line {
  position: absolute; top: 26px; left: 0; right: 0; height: 1.5px;
  background: var(--line); border-radius: 2px;
}
.process__line span { display: block; height: 100%; width: 0; background: var(--gradient); border-radius: 2px; transition: width 1.6s var(--ease-out); }
.process__steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.process__step { position: relative; padding-top: 64px; }
.process__step-num {
  position: absolute; top: 0; left: 0;
  width: 53px; height: 53px; border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 14px; font-weight: 500; color: var(--accent);
  background: var(--bg); border: 1.5px solid rgba(56,189,248,.4);
  box-shadow: 0 0 0 6px var(--bg), 0 0 26px -6px rgba(56,189,248,.5);
}
.process__step h3 { font-family: var(--font-display); font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.process__step p { color: var(--text-2); font-size: 14.5px; }

/* ── CTA panel ─────────────────────────────────────────────── */
.cta__panel {
  position: relative; overflow: hidden; text-align: center;
  padding: clamp(60px, 8vw, 110px) clamp(28px, 6vw, 90px);
  border-radius: calc(var(--radius-lg) + 8px);
  background: linear-gradient(120deg, #0e2a4a 0%, #1b2a6b 45%, #3b2a7a 100%);
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 50px 110px -40px rgba(38, 62, 160, 0.65);
}
.cta__panel-bg {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.9;
  background:
    radial-gradient(600px 300px at 15% 0%, rgba(56,189,248,.35), transparent 60%),
    radial-gradient(500px 260px at 90% 100%, rgba(168,85,247,.3), transparent 60%);
}
.cta__panel-bg::after {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(70% 70% at 50% 50%, #000, transparent);
}
.cta__title {
  position: relative; font-family: var(--font-display);
  font-size: clamp(32px, 4.4vw, 56px); font-weight: 800; line-height: 1.08;
  letter-spacing: -0.02em; color: #fff; margin-bottom: 18px;
}
.cta__title em { font-style: normal; background: linear-gradient(100deg, #7dd3fc, #c4b5fd); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.cta__desc { position: relative; color: rgba(230, 240, 255, 0.75); font-size: 17px; margin-bottom: 36px; }
.cta__panel .btn { position: relative; }

/* ── Footer ────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--line); padding: 70px 0 34px; background: linear-gradient(180deg, transparent, rgba(10,14,24,.85)); }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 44px; margin-bottom: 54px; }
.footer__logo { width: 128px; margin-bottom: 18px; }
.footer__brand p { color: var(--text-3); font-size: 14.5px; max-width: 300px; }
.footer__col h4 { font-family: var(--font-display); font-size: 13px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-2); margin-bottom: 18px; }
.footer__col a { display: block; color: var(--text-3); font-size: 14.5px; padding: 5px 0; transition: color 0.3s, transform 0.3s var(--ease-out); }
.footer__col a:hover { color: var(--accent); transform: translateX(4px); }
.footer__bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding-top: 26px; border-top: 1px solid var(--line);
  color: var(--text-3); font-size: 13.5px;
}
.footer__top {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--line-2); color: var(--text-2);
  transition: border-color 0.3s, color 0.3s, transform 0.35s var(--ease-spring), background 0.3s;
}
.footer__top:hover { border-color: var(--accent); color: var(--accent); background: rgba(56,189,248,.08); transform: translateY(-4px); }
.footer__top svg { width: 19px; height: 19px; }

/* ── Page hero (subpages) ──────────────────────────────────── */
.page-hero {
  position: relative; padding: calc(var(--nav-h) + env(safe-area-inset-top, 0px) + clamp(60px, 9vw, 110px)) 0 clamp(56px, 7vw, 90px);
  overflow: hidden;
}
.page-hero__glow {
  position: absolute; top: -220px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 520px; border-radius: 50%;
  background: radial-gradient(ellipse, rgba(99,102,241,.22), transparent 65%);
  filter: blur(70px); pointer-events: none;
}
.page-hero__crumbs {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 0.08em;
  color: var(--text-3); margin-bottom: 30px;
}
.page-hero__crumbs a { color: var(--text-2); transition: color 0.3s; }
.page-hero__crumbs a:hover { color: var(--accent); }
.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 76px); font-weight: 800; line-height: 1.05;
  letter-spacing: -0.03em; margin-bottom: 26px;
}
.page-hero__title em { font-style: normal; }
.page-hero__lead { color: var(--text-2); font-size: clamp(16px, 1.5vw, 19px); max-width: 620px; }

/* ── About: story ──────────────────────────────────────────── */
.story__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 6vw, 90px); align-items: center; }
.story__media { perspective: 1100px; }
.story__media-frame {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line-2);
  box-shadow: 0 40px 90px -30px rgba(0,0,0,.8), 0 0 70px -30px rgba(99,102,241,.4);
  transition: transform 0.2s ease-out; transform-style: preserve-3d;
}
.story__media-frame img { aspect-ratio: 4/3.4; object-fit: cover; width: 100%; }
.story__media-badge {
  position: absolute; bottom: 22px; left: 22px;
  display: flex; align-items: center; gap: 14px;
  background: rgba(8, 14, 26, 0.85); backdrop-filter: blur(12px);
  border: 1px solid rgba(56,189,248,.3); border-radius: 18px; padding: 16px 22px;
}
.story__media-badge strong { font-family: var(--font-display); font-size: 38px; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.story__media-badge strong::after { content: '+'; }
.story__media-badge span { font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-2); line-height: 1.4; }
.story__text { color: var(--text-2); font-size: 16px; margin-top: 24px; }
.story__text p + p { margin-top: 16px; }

/* ── About: principles ─────────────────────────────────────── */
.principles__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.principle-card {
  padding: 34px 28px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line);
  transition: transform 0.5s var(--ease-out), border-color 0.4s, background 0.4s;
}
.principle-card:hover { transform: translateY(-8px); border-color: rgba(99,102,241,.4); background: var(--surface-2); }
.principle-card__icon {
  width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center;
  color: var(--accent-2); background: rgba(99,102,241,.1); border: 1px solid rgba(99,102,241,.28);
  margin-bottom: 22px; transition: transform 0.5s var(--ease-spring);
}
.principle-card:hover .principle-card__icon { transform: scale(1.1) rotate(5deg); }
.principle-card__icon svg { width: 27px; height: 27px; }
.principle-card h3 { font-family: var(--font-display); font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.principle-card p { color: var(--text-2); font-size: 14px; }

/* ── About: timeline ───────────────────────────────────────── */
.timeline { position: relative; max-width: 760px; margin-inline: auto; padding-left: 40px; }
.timeline__line { position: absolute; left: 8px; top: 6px; bottom: 6px; width: 1.5px; background: var(--line); }
.timeline__line span { display: block; width: 100%; height: 0; background: var(--gradient); transition: height 1.8s var(--ease-out); }
.timeline__item { position: relative; padding: 0 0 40px 34px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__dot {
  position: absolute; left: -40px; top: 6px; width: 17px; height: 17px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
  box-shadow: 0 0 16px rgba(56,189,248,.6);
}
.timeline__year { font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.14em; color: var(--accent); margin-bottom: 8px; }
.timeline__card {
  padding: 24px 28px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  transition: transform 0.45s var(--ease-out), border-color 0.35s;
}
.timeline__card:hover { transform: translateX(8px); border-color: rgba(56,189,248,.3); }
.timeline__card--accent { background: var(--gradient-soft); border-color: rgba(56,189,248,.35); }
.timeline__card h3 { font-family: var(--font-display); font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.timeline__card p { color: var(--text-2); font-size: 14.5px; }

/* ── About: numbers ────────────────────────────────────────── */
.numbers__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  padding: clamp(40px, 5vw, 64px); border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line);
}
.numbers__item { text-align: center; display: grid; gap: 6px; }
.numbers__item strong { font-family: var(--font-display); font-size: clamp(38px, 4.4vw, 56px); font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.numbers__item span { font-size: 12.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-3); }

/* ── Outsourcing: advantages ───────────────────────────────── */
.advantages__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.advantage-card {
  padding: 32px 28px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line);
  transition: transform 0.5s var(--ease-out), border-color 0.4s, background 0.4s;
}
.advantage-card:hover { transform: translateY(-8px); border-color: rgba(56,189,248,.32); background: var(--surface-2); }
.advantage-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.advantage-card__num { font-family: var(--font-display); font-size: 40px; font-weight: 800; color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.14); }
.advantage-card__icon {
  width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center;
  color: var(--accent); background: var(--gradient-soft); border: 1px solid rgba(56,189,248,.22);
  transition: transform 0.5s var(--ease-spring);
}
.advantage-card:hover .advantage-card__icon { transform: scale(1.1) rotate(-5deg); }
.advantage-card__icon svg { width: 25px; height: 25px; }
.advantage-card h3 { font-family: var(--font-display); font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.advantage-card p { color: var(--text-2); font-size: 14px; }

/* ── Outsourcing: cost band ────────────────────────────────── */
.cost { background: linear-gradient(180deg, transparent, rgba(10,14,24,.7) 20%, rgba(10,14,24,.7) 80%, transparent); }
.cost__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 90px); align-items: center; }
.cost__content .btn { margin-top: 32px; }
.cost__stats { display: grid; gap: 18px; }
.cost__stat {
  padding: 26px 30px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  transition: border-color 0.35s, transform 0.45s var(--ease-out);
}
.cost__stat:hover { border-color: rgba(56,189,248,.3); transform: translateX(8px); }
.cost__stat strong { font-family: var(--font-display); font-size: 34px; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.cost__stat > span { display: block; color: var(--text-2); font-size: 14px; margin: 4px 0 14px; }
.cost__bar { height: 5px; border-radius: 5px; background: var(--line); overflow: hidden; }
.cost__bar i { display: block; height: 100%; width: 0; border-radius: 5px; background: var(--gradient); transition: width 1.4s var(--ease-out) 0.2s; }
.cost__stat.is-inview .cost__bar i { width: var(--w); }

/* ── Outsourcing: models ───────────────────────────────────── */
.models__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.model-card {
  position: relative; display: flex; flex-direction: column;
  padding: 38px 32px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line);
  transition: transform 0.5s var(--ease-out), border-color 0.4s, background 0.4s;
}
.model-card:hover { transform: translateY(-8px); border-color: rgba(56,189,248,.3); }
.model-card--featured { background: var(--gradient-soft); border-color: rgba(56,189,248,.4); box-shadow: 0 30px 70px -30px rgba(56,189,248,.35); }
.model-card__flag {
  position: absolute; top: -13px; left: 32px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: #051018; background: var(--gradient); padding: 6px 14px; border-radius: 100px; font-weight: 500;
}
.model-card h3 { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.model-card__for { font-size: 13.5px; color: var(--accent); margin-bottom: 22px; font-family: var(--font-mono); letter-spacing: 0.04em; }
.model-card ul { display: grid; gap: 12px; margin-bottom: 8px; flex: 1; }
.model-card li { position: relative; padding-left: 26px; color: var(--text-2); font-size: 14.5px; }
.model-card li::before {
  content: ''; position: absolute; left: 0; top: 7px; width: 14px; height: 8px;
  border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg); border-radius: 1px;
}
.model-card .link-arrow { margin-top: 22px; }

/* ── Contact ───────────────────────────────────────────────── */
.contact__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(44px, 6vw, 90px); align-items: start; }
.contact__channels { display: grid; gap: 14px; margin-top: 38px; }
.contact__channel {
  display: flex; align-items: center; gap: 18px;
  padding: 20px 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  transition: border-color 0.35s, transform 0.4s var(--ease-out), background 0.35s;
}
.contact__channel:hover { border-color: rgba(56,189,248,.35); transform: translateX(8px); background: var(--surface-2); }
.contact__channel-icon {
  flex-shrink: 0; width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  color: var(--accent); background: var(--gradient-soft); border: 1px solid rgba(56,189,248,.22);
}
.contact__channel-icon svg { width: 22px; height: 22px; }
.contact__channel div:nth-child(2) { display: grid; gap: 2px; flex: 1; }
.contact__channel span { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
.contact__channel strong { font-family: var(--font-display); font-size: 16.5px; font-weight: 600; }
.contact__channel-arrow { width: 20px; height: 20px; color: var(--text-3); transition: color 0.3s, transform 0.35s var(--ease-out); }
.contact__channel:hover .contact__channel-arrow { color: var(--accent); transform: translate(3px, -3px); }

.contact__assurance { display: grid; gap: 12px; margin-top: 34px; }
.contact__assurance-item { display: flex; align-items: center; gap: 12px; color: var(--text-2); font-size: 14.5px; }
.contact__assurance-item svg { width: 19px; height: 19px; color: #34d399; flex-shrink: 0; }

.contact__form-wrap { position: sticky; top: calc(var(--nav-h) + 24px); }
.contact__form {
  position: relative; padding: clamp(30px, 4vw, 46px);
  border-radius: var(--radius-lg); background: var(--bg-2);
  border: 1px solid var(--line-2);
  box-shadow: 0 40px 90px -40px rgba(0,0,0,.8);
}
.contact__form-head { margin-bottom: 30px; }
.contact__form-head h3 { font-family: var(--font-display); font-size: 24px; font-weight: 700; }
.contact__form-head p { color: var(--text-3); font-size: 13px; margin-top: 4px; }
.contact__form-head i { color: var(--accent); font-style: normal; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { position: relative; margin-bottom: 24px; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 15px 4px 11px;
  background: transparent; border: 0; border-bottom: 1.5px solid var(--line-2);
  color: var(--text); font: inherit; font-size: 15px; outline: none;
  transition: border-color 0.3s; border-radius: 0; resize: vertical;
}
.form-field select { cursor: pointer; }
.form-field select option { background: var(--bg-2); color: var(--text); }
.form-field label {
  position: absolute; left: 4px; top: 15px; color: var(--text-3); font-size: 15px;
  pointer-events: none; transition: all 0.3s var(--ease-out);
}
.form-field label i { color: var(--accent); font-style: normal; }
.form-field input:focus ~ label, .form-field input:not(:placeholder-shown) ~ label,
.form-field textarea:focus ~ label, .form-field textarea:not(:placeholder-shown) ~ label,
.form-field select:focus ~ label, .form-field select.has-value ~ label {
  top: -9px; font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent);
}
.form-field__line { position: absolute; left: 0; right: 0; bottom: 0; height: 1.5px; background: var(--gradient); transform: scaleX(0); transform-origin: left; transition: transform 0.45s var(--ease-out); }
.form-field input:focus ~ .form-field__line, .form-field textarea:focus ~ .form-field__line, .form-field select:focus ~ .form-field__line { transform: scaleX(1); }
.form-field.is-error input, .form-field.is-error textarea { border-bottom-color: #f87171; }
.form-field.is-error label { color: #f87171; }

.form-budget { margin: 6px 0 30px; }
.form-budget__label { display: block; font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); margin-bottom: 14px; }
.form-budget__options { display: flex; gap: 10px; flex-wrap: wrap; }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-block; padding: 9px 18px; border-radius: 100px; font-size: 13.5px; font-weight: 500;
  border: 1px solid var(--line-2); color: var(--text-2);
  transition: all 0.3s var(--ease-out);
}
.chip:hover span { border-color: rgba(56,189,248,.5); color: var(--text); }
.chip input:checked + span { background: var(--gradient); border-color: transparent; color: #051018; font-weight: 600; }

.form-note {
  display: flex; align-items: flex-start; gap: 10px;
  margin-top: 20px; font-size: 13px; line-height: 1.6; color: var(--text-3);
}
.form-note strong { color: var(--text-2); font-weight: 500; }
.form-note.is-active { color: var(--accent-3); }
.form-note.is-active strong { color: var(--accent-3); }

/* ── FAQ ───────────────────────────────────────────────────── */
.faq__list { display: grid; gap: 12px; }
.faq__item {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); overflow: hidden;
  transition: border-color 0.35s, background 0.35s;
}
.faq__item[open] { border-color: rgba(56,189,248,.3); background: var(--surface-2); }
.faq__item summary {
  list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 22px 26px; cursor: pointer;
  font-family: var(--font-display); font-size: 16.5px; font-weight: 600;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__chev { position: relative; flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line-2); transition: transform 0.4s var(--ease-out), border-color 0.3s, background 0.3s; }
.faq__chev::before, .faq__chev::after { content: ''; position: absolute; top: 50%; left: 50%; width: 11px; height: 1.6px; background: var(--text-2); transform: translate(-50%, -50%); transition: transform 0.4s var(--ease-out), background 0.3s; }
.faq__chev::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq__item[open] .faq__chev { transform: rotate(135deg); border-color: var(--accent); background: rgba(56,189,248,.1); }
.faq__item[open] .faq__chev::before, .faq__item[open] .faq__chev::after { background: var(--accent); }
.faq__body { padding: 0 26px; }
.faq__body p { color: var(--text-2); font-size: 15px; padding-bottom: 24px; max-width: 640px; }

/* ── Reveal animations ─────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out); transition-delay: var(--rd, 0s); }
.reveal.is-inview { opacity: 1; transform: translateY(0); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 54px; }
  .hero { padding-top: calc(var(--nav-h) + 70px); }
  .hero__visual { max-width: 640px; }
  .services__grid { grid-template-columns: 1fr 1fr; }
  .advantages__grid { grid-template-columns: 1fr 1fr; }
  .principles__grid { grid-template-columns: 1fr 1fr; }
  .models__grid { grid-template-columns: 1fr; max-width: 560px; margin-inline: auto; }
  .model-card--featured { transform: none; }
  .why__grid, .cost__grid, .story__grid, .contact__grid { grid-template-columns: 1fr; }
  .why__sticky, .contact__form-wrap { position: static; }
  .process__steps { grid-template-columns: 1fr 1fr; gap: 40px 26px; }
  .process__line { display: none; }
  .numbers__grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  :root { --nav-h: 70px; }
  .nav__links {
    position: fixed; inset: 0; z-index: 1650;
    flex-direction: column; justify-content: center; gap: 10px;
    background: rgba(5, 7, 13, 0.96); backdrop-filter: blur(24px);
    opacity: 0; visibility: hidden; transition: opacity 0.45s ease, visibility 0.45s;
  }
  .nav__links.is-open { opacity: 1; visibility: visible; }
  .nav__link { font-size: 26px; font-family: var(--font-display); font-weight: 600; padding: 12px 24px; opacity: 0; transform: translateY(18px); transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), color 0.3s; }
  .nav__links.is-open .nav__link { opacity: 1; transform: translateY(0); }
  .nav__links.is-open .nav__link:nth-child(1) { transition-delay: 0.08s; }
  .nav__links.is-open .nav__link:nth-child(2) { transition-delay: 0.15s; }
  .nav__links.is-open .nav__link:nth-child(3) { transition-delay: 0.22s; }
  .nav__links.is-open .nav__link:nth-child(4) { transition-delay: 0.29s; }
  .nav__link::after { display: none; }
  .nav__cta { margin: 18px 0 0; opacity: 0; transform: translateY(18px); transition: opacity 0.5s var(--ease-out) 0.38s, transform 0.5s var(--ease-out) 0.38s; }
  .nav__links.is-open .nav__cta { opacity: 1; transform: translateY(0); }
  .nav__burger { display: block; }

  .hero__meta { gap: 18px; }
  .hero__meta-divider { display: none; }
  .hero__scroll { display: none; }
  .services__grid, .advantages__grid, .principles__grid, .intro__grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .process__steps { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 34px; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .section__head--split { flex-direction: column; align-items: flex-start; }
}

/* ── 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; }
  .reveal { opacity: 1; transform: none; }
  .hero__title-line > span { transform: none; animation: none; }
}