:root {
  --bg: #fbf8f5;
  --surface: #fffdfb;
  --surface-2: #f7f1ec;
  --ink: #1f1e1d;
  --muted: #6c6864;
  --accent: #c66d48;
  --accent-dark: #a95131;
  --accent-soft: #f3ddd2;
  --line: rgba(69, 53, 45, 0.12);
  --shadow: 0 24px 70px rgba(77, 54, 42, 0.08);
  --shadow-card: 0 14px 42px rgba(77, 54, 42, 0.07);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max-width: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 5%, rgba(198,109,72,.06), transparent 28rem),
    var(--bg);
  font-family: "Inter", "Aptos", "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::selection { background: var(--accent-soft); color: var(--ink); }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 1000;
  padding: .75rem 1rem;
  background: var(--ink);
  color: #fff;
  border-radius: 12px;
  text-decoration: none;
}
.skip-link:focus { top: 1rem; }

.container {
  width: min(calc(100% - 2.4rem), var(--max-width));
  margin-inline: auto;
}

.section-pad { padding: clamp(4.5rem, 8vw, 8rem) 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(69,53,45,.08);
  background: rgba(251, 248, 245, .82);
  backdrop-filter: blur(18px) saturate(140%);
}

.nav {
  min-height: 82px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.05;
}
.brand-name { font-size: 1.55rem; font-weight: 650; letter-spacing: -.035em; }
.brand-line { margin-top: .38rem; color: var(--muted); font-size: .67rem; font-weight: 700; text-transform: uppercase; letter-spacing: .19em; }

.nav-menu { display: flex; justify-content: center; gap: clamp(1rem, 3vw, 2.4rem); }
.nav-menu a, .footer-links a {
  color: var(--muted);
  font-size: .9rem;
  font-weight: 520;
  text-decoration: none;
  transition: color .2s ease;
}
.nav-menu a:hover, .nav-menu a:focus-visible, .footer-links a:hover, .footer-links a:focus-visible { color: var(--accent-dark); }

.nav-actions { display: flex; align-items: center; gap: 1rem; }
.lang-switch { display: inline-flex; align-items: center; gap: .35rem; color: #a7a09a; font-size: .72rem; }
.lang-switch button {
  border: 0;
  padding: .25rem;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}
.lang-switch button.active { color: var(--accent-dark); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  min-height: 52px;
  padding: .82rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 13px;
  font-size: .8rem;
  font-weight: 780;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.button-small { min-height: 44px; padding: .72rem 1rem; font-size: .7rem; }
.button-primary { color: #fff; background: linear-gradient(135deg, #d17a55, #b85c39); box-shadow: 0 12px 28px rgba(184,92,57,.2); }
.button-outline { color: var(--accent-dark); background: rgba(255,255,255,.35); border-color: rgba(198,109,72,.55); }
.button:hover, .button:focus-visible { transform: translateY(-2px); box-shadow: 0 15px 32px rgba(184,92,57,.18); }

.hero { overflow: hidden; padding-top: clamp(4rem, 7vw, 6.5rem); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .98fr) minmax(420px, 1.02fr);
  align-items: center;
  min-height: 620px;
  gap: clamp(2rem, 7vw, 7rem);
}

.eyebrow {
  margin: 0 0 1.35rem;
  color: var(--accent);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .22em;
  text-transform: uppercase;
}

.hero h1, h2, h3, p { text-wrap: pretty; }
.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3.2rem, 7vw, 6.1rem);
  font-weight: 610;
  letter-spacing: -.065em;
  line-height: .98;
}
.hero-copy {
  max-width: 640px;
  margin: 1.75rem 0 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2.2rem; }

.hero-art {
  position: relative;
  min-height: 560px;
  isolation: isolate;
}
.hero-art::before {
  content: "";
  position: absolute;
  inset: 10% 4% 3% 8%;
  border-radius: 48% 48% 18% 18%;
  background: linear-gradient(145deg, rgba(255,255,255,.86), rgba(231,219,209,.62));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.7), var(--shadow);
  transform: perspective(800px) rotateY(-7deg);
}
.orb, .arch, .grid-dots, .code-mark { position: absolute; }
.orb { border-radius: 50%; border: 2px solid rgba(255,255,255,.9); box-shadow: inset -18px -18px 45px rgba(181,145,126,.13), 0 26px 60px rgba(86,59,45,.12); }
.orb-large { width: 310px; aspect-ratio: 1; right: 4%; top: 7%; background: rgba(249,241,235,.72); }
.orb-medium { width: 205px; aspect-ratio: 1; right: 18%; top: 32%; background: rgba(244,235,228,.9); }
.orb-small { width: 126px; aspect-ratio: 1; right: 7%; top: 44%; background: rgba(244,236,229,.92); }
.arch { border: 1px solid rgba(198,109,72,.55); border-bottom: 0; border-radius: 180px 180px 0 0; }
.arch-one { width: 195px; height: 190px; left: 15%; top: 13%; }
.arch-two { width: 138px; height: 134px; left: 27%; top: 29%; border-color: rgba(255,255,255,.9); }
.grid-dots {
  width: 120px; height: 170px; left: 4%; top: 26%; opacity: .55;
  background-image: radial-gradient(var(--accent) 1px, transparent 1px);
  background-size: 12px 12px;
}
.code-mark {
  right: 22%; top: 48%; z-index: 2;
  width: 108px; height: 108px; display: grid; place-items: center;
  color: var(--accent); border: 1px solid rgba(198,109,72,.45); border-radius: 50%;
  font-weight: 760; font-size: 1.35rem; background: rgba(255,253,251,.5); backdrop-filter: blur(8px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, .65fr);
  align-items: end;
  gap: 3rem;
  margin-bottom: 2.2rem;
}
.section-heading h2, .approach-copy h2, .center-heading h2, .contact-box h2, .legal-page h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4.5vw, 4.3rem);
  font-weight: 610;
  letter-spacing: -.055em;
  line-height: 1.04;
}
.section-heading > p { margin: 0 0 .4rem; color: var(--muted); }

.service-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.service-card {
  min-height: 300px;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,253,251,.82);
  box-shadow: var(--shadow-card);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.service-card:hover { transform: translateY(-7px); border-color: rgba(198,109,72,.25); box-shadow: 0 22px 52px rgba(77,54,42,.1); }
.service-icon {
  width: 54px; height: 54px; display: grid; place-items: center;
  margin-bottom: 2.8rem; border-radius: 50%; color: var(--accent);
  background: var(--surface-2); font-size: 1.15rem; font-weight: 700;
}
.service-card h3 { margin: 0 0 .7rem; font-size: 1.08rem; font-weight: 650; letter-spacing: -.02em; }
.service-card p { margin: 0; color: var(--muted); font-size: .92rem; }

.approach { background: linear-gradient(180deg, rgba(247,241,236,.3), rgba(247,241,236,.85)); border-block: 1px solid rgba(69,53,45,.06); }
.approach-grid { display: grid; grid-template-columns: minmax(360px, .86fr) minmax(0, 1.14fr); align-items: center; gap: clamp(3rem, 8vw, 8rem); }
.approach-art { position: relative; min-height: 480px; overflow: hidden; border-radius: var(--radius-xl); background: linear-gradient(155deg, rgba(255,255,255,.78), rgba(226,214,204,.55)); box-shadow: var(--shadow); }
.sphere, .cube, .orbit, .micro-grid { position: absolute; }
.sphere { width: 220px; aspect-ratio: 1; border-radius: 50%; left: 17%; top: 23%; background: radial-gradient(circle at 35% 30%, #fff 0, #f5efea 40%, #d8c7bd 100%); box-shadow: 0 28px 55px rgba(73,52,42,.18); }
.cube { background: linear-gradient(145deg, #fff, #d8cbc2); border: 1px solid rgba(255,255,255,.8); box-shadow: 0 22px 40px rgba(73,52,42,.12); }
.cube-left { width: 92px; height: 128px; left: 8%; bottom: 10%; }
.cube-right { width: 63px; height: 63px; right: 18%; bottom: 21%; border-radius: 50%; background: radial-gradient(circle at 30% 30%, #fff, #c98667); }
.orbit { border: 1px solid rgba(198,109,72,.52); border-radius: 50%; }
.orbit-one { width: 330px; height: 180px; left: -2%; top: 28%; transform: rotate(-24deg); }
.orbit-two { width: 250px; height: 250px; left: 8%; top: 16%; border-color: rgba(255,255,255,.85); }
.micro-grid { right: 10%; top: 17%; width: 104px; height: 104px; opacity: .5; background-image: radial-gradient(var(--accent) 1px, transparent 1px); background-size: 11px 11px; }
.approach-copy > p:not(.eyebrow) { color: var(--muted); max-width: 680px; margin: 1.3rem 0 0; }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-top: 2rem; }
.principle { display: grid; grid-template-columns: auto 1fr; gap: .8rem; align-items: start; }
.principle-symbol { width: 45px; height: 45px; display: grid; place-items: center; flex: 0 0 auto; color: var(--accent); border: 1px solid rgba(198,109,72,.25); border-radius: 50%; background: rgba(255,255,255,.45); }
.principle strong, .principle span { display: block; }
.principle strong { margin-bottom: .25rem; font-size: .9rem; }
.principle span { color: var(--muted); font-size: .78rem; line-height: 1.55; }

.center-heading { text-align: center; max-width: 760px; margin: 0 auto 3rem; }
.process-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.4rem; }
.process-item { position: relative; display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: start; padding: 1.2rem; }
.process-item:not(:last-child)::after { content: ""; position: absolute; top: 3.15rem; left: calc(100% - .2rem); width: 1.8rem; border-top: 1px dashed rgba(198,109,72,.55); }
.process-number { width: 64px; height: 64px; display: grid; place-items: center; border-radius: 50%; background: var(--surface-2); color: var(--accent); font-size: 1.6rem; font-weight: 500; }
.process-item h3 { margin: .15rem 0 .35rem; font-size: 1rem; }
.process-item p { margin: 0; color: var(--muted); font-size: .88rem; }

.contact { padding-top: 2rem; }
.contact-box {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: clamp(2rem, 5vw, 4.2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #f5ece6, #fffdfb 54%, #efe3db);
  box-shadow: var(--shadow);
}
.contact-box::after { content: ""; position: absolute; right: -4%; bottom: -70%; width: 55%; aspect-ratio: 1; border: 1px solid rgba(198,109,72,.18); border-radius: 50%; }
.contact-box h2 { max-width: 700px; font-size: clamp(2rem, 4vw, 3.8rem); }
.contact-box p:not(.eyebrow) { margin: 1rem 0 0; color: var(--muted); }
.email-pill { position: relative; z-index: 2; display: inline-flex; align-items: center; gap: .8rem; padding: 1rem 1.45rem; border: 1px solid rgba(198,109,72,.55); border-radius: 999px; color: var(--ink); background: rgba(255,255,255,.45); text-decoration: none; font-weight: 560; transition: transform .2s ease, background .2s ease; }
.email-pill:hover, .email-pill:focus-visible { transform: translateY(-2px); background: #fff; }
.email-pill span { color: var(--accent); }

.site-footer { padding: 2.5rem 0; border-top: 1px solid rgba(69,53,45,.08); }
.footer-inner { display: grid; grid-template-columns: 1fr auto auto; gap: 2rem; align-items: center; color: var(--muted); font-size: .8rem; }
.footer-inner > div:first-child { display: flex; flex-direction: column; }
.footer-inner strong { color: var(--ink); font-size: .95rem; }
.footer-links { display: flex; gap: 1rem; }

.legal-main { padding: clamp(3rem, 7vw, 6rem) 0; }
.legal-page { max-width: 900px; }
.legal-page h1 { margin-bottom: 1rem; }
.legal-page .lead { color: var(--muted); margin-bottom: 3rem; }
.legal-block { padding: 1.5rem 0; border-top: 1px solid var(--line); }
.legal-block h2 { margin: 0 0 .8rem; font-size: 1.25rem; letter-spacing: -.025em; }
.legal-block h3 { margin: 1.2rem 0 .5rem; font-size: 1rem; }
.legal-block p, .legal-block li { color: var(--muted); }
.legal-block p { margin: .45rem 0; }
.legal-block ul { padding-left: 1.2rem; }
.legal-note { padding: 1rem 1.2rem; border-radius: 14px; background: var(--surface-2); color: var(--muted); }

[data-lang="ru"] { display: none !important; }
html[data-active-lang="de"] [data-lang="ru"] { display: none !important; }
html[data-active-lang="ru"] [data-lang="de"] { display: none !important; }
html[data-active-lang="ru"] [data-lang="ru"] { display: revert !important; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

:focus-visible { outline: 3px solid rgba(198,109,72,.3); outline-offset: 4px; }

@media (max-width: 980px) {
  .nav { grid-template-columns: auto 1fr; }
  .nav-menu { display: none; }
  .nav-actions { justify-self: end; }
  .hero-grid, .approach-grid { grid-template-columns: 1fr; }
  .hero-art { min-height: 480px; max-width: 650px; width: 100%; margin-inline: auto; }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section-heading { grid-template-columns: 1fr; gap: 1rem; }
  .approach-art { order: 2; min-height: 390px; }
  .approach-copy { order: 1; }
  .contact-box { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr auto; }
  .footer-inner > span:last-child { grid-column: 1 / -1; }
}

@media (max-width: 700px) {
  .container { width: min(calc(100% - 1.35rem), var(--max-width)); }
  .section-pad { padding: 4rem 0; }
  .site-header { position: static; }
  .nav { min-height: 74px; gap: .6rem; }
  .brand-name { font-size: 1.2rem; }
  .brand-line { font-size: .52rem; letter-spacing: .15em; }
  .nav-cta { display: none; }
  .hero-grid { min-height: auto; }
  .hero h1 { font-size: clamp(2.7rem, 14vw, 4.2rem); }
  .hero-art { min-height: 360px; }
  .orb-large { width: 220px; }
  .orb-medium { width: 150px; }
  .orb-small { width: 90px; }
  .arch-one { width: 145px; height: 140px; }
  .arch-two { width: 105px; height: 100px; }
  .code-mark { width: 80px; height: 80px; font-size: 1rem; }
  .service-grid, .principles, .process-list { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .service-icon { margin-bottom: 1.8rem; }
  .principle { grid-template-columns: auto 1fr; }
  .process-item:not(:last-child)::after { display: none; }
  .contact-box { padding: 1.6rem; border-radius: 24px; }
  .email-pill { justify-content: center; width: 100%; font-size: .9rem; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}