/* ===================================================================
   RIDIS — ИИ-разработка. Дизайн-система в духе ClauseOS
   Тёмная база, зелёный глассморфизм, тонкий гротеск Urbanist, 3D-стекло.
   =================================================================== */

:root {
  /* Палитра */
  --bg:            #0B0E1B;
  --bg-2:          #11152a;
  --surface:       rgba(255, 255, 255, 0.035);
  --surface-2:     rgba(255, 255, 255, 0.05);
  --glass:         rgba(26, 98, 90, 0.20);
  --glass-strong:  rgba(28, 150, 134, 0.9);
  --border:        rgba(255, 255, 255, 0.09);
  --border-soft:   rgba(255, 255, 255, 0.06);

  --green:         #46ECD6;
  --green-bright:  #6ef0de;
  --green-deep:    #1f9e8e;

  --text:          #eef4ef;
  --text-soft:     #aebcb2;
  --text-mute:     #76857b;

  --radius:        26px;
  --radius-sm:     16px;
  --radius-pill:   999px;

  /* Широкий макет; на 4K — небольшие поля по бокам */
  --maxw:          1880px;
  --pad:           40px;
  --ease:          cubic-bezier(0.22, 1, 0.36, 1);

  --font:          'Golos Text', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-weight: 300;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ---------- Ambient background ---------- */
.bg-glow { position: fixed; border-radius: 50%; filter: blur(130px); z-index: -2; pointer-events: none; opacity: 0.5; }
.bg-glow--1 { width: 60vw; height: 60vw; top: -22vw; left: 52vw; background: radial-gradient(circle, rgba(70,236,214,.42), transparent 65%); animation: drift 22s var(--ease) infinite alternate; }
.bg-glow--2 { width: 46vw; height: 46vw; top: 64vh; left: -16vw; background: radial-gradient(circle, rgba(31,158,142,.4), transparent 65%); opacity: 0.38; animation: drift 26s var(--ease) infinite alternate-reverse; }
.grain { position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }

@keyframes drift { from { transform: translate(0,0); } to { transform: translate(-40px, 50px); } }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }
.section { padding-block: 130px; }
section[id] { scroll-margin-top: 100px; }
body.quiz-open { overflow: hidden; }

/* ---------- Typography ---------- */
h1, h2, h3 { font-family: var(--font); font-weight: 300; line-height: 1.08; letter-spacing: -0.02em; }
.accent { color: var(--green); font-weight: 400; }

.eyebrow { display: inline-block; font-size: 13px; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase; color: var(--green); margin-bottom: 18px; }

.section__head { max-width: 680px; margin-bottom: 64px; }
.section__head h2 { font-size: clamp(32px, 4vw, 52px); margin-bottom: 18px; }
.section__head p { color: var(--text-soft); font-size: 18px; font-weight: 300; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font); font-weight: 500; font-size: 15px; padding: 15px 28px;
  border-radius: var(--radius-pill); border: 1px solid transparent; cursor: pointer;
  transition: transform .25s var(--ease), background .25s, border-color .25s, box-shadow .25s; white-space: nowrap; }
.btn svg { width: 18px; height: 18px; }
.btn--sm { padding: 11px 20px; font-size: 14px; }
.btn--primary { background: linear-gradient(135deg, var(--green-bright), var(--green-deep)); color: #04302b; box-shadow: 0 10px 34px -10px rgba(70,236,214,.65); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 44px -10px rgba(70,236,214,.85); }
.btn--ghost { background: var(--surface); color: var(--text); border-color: var(--border); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.btn--ghost:hover { background: var(--surface-2); border-color: rgba(70,236,214,.45); transform: translateY(-2px); }
.btn--block { width: 100%; }
.btn.is-loading { color: transparent !important; pointer-events: none; position: relative; }
.btn.is-loading::after { content: ""; position: absolute; top: 50%; left: 50%; width: 18px; height: 18px; margin: -9px 0 0 -9px;
  border: 2px solid rgba(4,48,43,.3); border-top-color: #04302b; border-radius: 50%; animation: btnspin .7s linear infinite; }
.btn--ghost.is-loading::after { border-color: rgba(255,255,255,.25); border-top-color: var(--green-bright); }
@keyframes btnspin { to { transform: rotate(360deg); } }

/* ---------- Pill ---------- */
.pill { display: inline-flex; align-items: center; gap: 9px; padding: 9px 18px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-pill); font-size: 14px; color: var(--text-soft);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); margin-bottom: 30px; }
.pill__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 12px var(--green); }

/* ---------- Glass shimmer (общий приём) ---------- */
.glass-shine { position: relative; overflow: hidden; }
.glass-shine::after {
  content: ""; position: absolute; top: 0; left: -60%; width: 45%; height: 100%;
  background: linear-gradient(115deg, transparent, rgba(255,255,255,.16), transparent);
  transform: skewX(-18deg); transition: left .8s var(--ease); pointer-events: none;
}
.glass-shine:hover::after { left: 130%; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(11,14,27,.6);
  backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); border-bottom: 1px solid var(--border-soft); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: inline-flex; align-items: center; }
.brand__logo { height: 30px; width: auto; }
.nav__links { display: flex; gap: 34px; }
.nav__links a { font-size: 15px; color: var(--text-soft); transition: color .2s; }
.nav__links a:hover { color: var(--text); }
.nav__actions { display: flex; align-items: center; gap: 12px; }
.nav__burger { display: none; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; width: 44px; height: 44px; color: var(--text); cursor: pointer; }
.nav__burger svg { width: 22px; height: 22px; margin: auto; }

/* ---------- Hero ---------- */
.hero { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 64px; align-items: center; padding-block: 100px 110px; }
.hero__title { font-size: clamp(42px, 5.4vw, 76px); font-weight: 200; line-height: 0.98; margin-bottom: 26px; }
.hero__lead { font-size: 19px; color: var(--text-soft); max-width: 560px; margin-bottom: 40px; font-weight: 300; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }
.hero__stats { display: flex; gap: 48px; flex-wrap: wrap; }
.hero__stats li { display: flex; flex-direction: column; }
.hero__stats b { font-size: 34px; font-weight: 300; color: var(--text); letter-spacing: -0.02em; }
.hero__stats span { font-size: 13.5px; color: var(--text-mute); max-width: 160px; }

/* Hero 3D glass scene */
.hero__visual { position: relative; min-height: 480px; }
.hero__scene { position: relative; width: 100%; height: 100%; min-height: 480px;
  transform-style: preserve-3d; perspective: 1200px; }
.float-obj { position: absolute; pointer-events: none; will-change: transform; }

/* CSS glass orb */
.orb { top: -4%; right: -2%; width: 300px; height: 300px; border-radius: 50%; transform-style: preserve-3d;
  animation: floatY 8s var(--ease) infinite alternate; }
.orb__core { position: absolute; inset: 22%; border-radius: 50%; overflow: hidden;
  background: radial-gradient(circle at 34% 28%, rgba(170,255,240,.7), rgba(70,236,214,.34) 42%, rgba(11,46,42,.55) 72%, rgba(11,14,27,.15));
  border: 1px solid rgba(255,255,255,.18);
  box-shadow: inset 0 8px 30px rgba(255,255,255,.28), inset 0 -22px 44px rgba(0,0,0,.55), 0 0 80px rgba(70,236,214,.5); }
.orb__core::before { content: ""; position: absolute; inset: -25%; border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, rgba(255,255,255,.5), transparent 40%),
    conic-gradient(from 0deg, transparent, rgba(70,236,214,.25), transparent 55%);
  animation: orbShine 12s linear infinite; }
.orb__core::after { content: ""; position: absolute; inset: 0; border-radius: 50%; pointer-events: none;
  box-shadow: inset 0 0 26px 5px rgba(110,240,222,.4); }
@keyframes orbShine { to { transform: rotate(360deg); } }
.orb__ring { position: absolute; inset: 0; border-radius: 50%; border: 1px solid rgba(110,240,222,.35); animation: spinZ 16s linear infinite; }
.orb__ring--2 { inset: 8%; border-color: rgba(110,240,222,.45); animation: spinX 11s linear infinite; }
.orb__ring--3 { inset: 3%; border-color: rgba(255,255,255,.13); animation: spinY 20s linear infinite; }
.orb__node { position: absolute; left: var(--x); top: var(--y); width: 9px; height: 9px; border-radius: 50%;
  background: var(--green-bright); box-shadow: 0 0 12px var(--green-bright); animation: pulse 2.6s infinite; }
@keyframes spinZ { to { transform: rotateZ(360deg); } }
@keyframes spinX { from { transform: rotateX(70deg) rotateZ(0); } to { transform: rotateX(70deg) rotateZ(360deg); } }
@keyframes spinY { from { transform: rotateY(72deg) rotateZ(0); } to { transform: rotateY(72deg) rotateZ(360deg); } }

.glass-card { position: relative; border-radius: var(--radius); border: 1px solid rgba(255,255,255,.14);
  background: var(--glass); backdrop-filter: blur(28px); -webkit-backdrop-filter: blur(28px);
  box-shadow: 0 30px 80px -30px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.14); will-change: transform; }
.glass-card--main { position: absolute; left: 0; bottom: 4%; width: 78%; padding: 28px; z-index: 3;
  animation: floatY 8s var(--ease) infinite alternate; }
.glass-card--main::before { content: ""; position: absolute; inset: 0; border-radius: var(--radius);
  background: radial-gradient(120% 90% at 80% 0%, rgba(70,236,214,.28), transparent 60%); pointer-events: none; }
.gc__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.gc__tag { font-size: 13px; color: var(--green-bright); display: inline-flex; align-items: center; gap: 8px; }
.gc__tag::before { content:""; width: 7px; height: 7px; border-radius: 50%; background: var(--green-bright); box-shadow: 0 0 10px var(--green-bright); animation: pulse 1.6s infinite; }
.gc__dots { display: flex; gap: 6px; }
.gc__dots i { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.22); }
.gc__metric { display: flex; flex-direction: column; gap: 4px; margin-bottom: 14px; }
.gc__label { font-size: 13px; color: var(--text-soft); }
.gc__value { font-size: 56px; font-weight: 200; line-height: 1; letter-spacing: -0.03em; }
.gc__value small { font-size: 26px; color: var(--text-soft); }
.gc__value--sm { font-size: 36px; }
.gc__bar { height: 8px; border-radius: 99px; background: rgba(255,255,255,.12); overflow: hidden; margin-bottom: 26px; }
.gc__bar span { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--green-deep), var(--green-bright)); }
.gc__rows { display: flex; flex-direction: column; gap: 12px; }
.gc__row { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--text-soft); }
.gc__row b { margin-left: auto; color: var(--text); font-weight: 500; }
.gc__ico { width: 30px; height: 30px; border-radius: 9px; background: rgba(255,255,255,.07); display: grid; place-items: center; color: var(--green-bright); flex: none; }
.gc__ico svg { width: 17px; height: 17px; }

.glass-card--mini { position: absolute; right: 0; bottom: -18px; width: 220px; padding: 20px 22px; z-index: 4;
  background: var(--glass-strong); display: flex; flex-direction: column; gap: 4px;
  box-shadow: 0 24px 60px -20px rgba(31,158,142,.7), inset 0 1px 0 rgba(255,255,255,.18);
  animation: floatY 6.5s var(--ease) infinite alternate-reverse; }
.glass-card--mini .gc__label { color: rgba(255,255,255,.78); }
.glass-card--mini .gc__value { color: #fff; }
.gc__trend { font-size: 12.5px; color: rgba(255,255,255,.82); }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
@keyframes floatY { from { transform: translateY(-10px); } to { transform: translateY(14px); } }

/* ---------- Strip ---------- */
.strip { padding-block: 24px 8px; }
.strip__label { text-align: center; font-size: 13.5px; color: var(--text-mute); margin-bottom: 24px; letter-spacing: .04em; }
.strip__items { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.strip__items li { font-size: 16px; color: var(--text-soft); padding: 11px 24px; border: 1px solid var(--border-soft);
  border-radius: var(--radius-pill); background: var(--surface); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }

/* ---------- Showcase band (coded card stack) ---------- */
.showcase { position: relative; margin-top: 80px; border-radius: 32px; overflow: hidden; border: 1px solid var(--border-soft);
  background: linear-gradient(150deg, rgba(31,158,142,.14), var(--surface)); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; padding: clamp(28px, 4vw, 64px); }
.showcase__overlay { max-width: 540px; }
.showcase__overlay h2 { font-size: clamp(26px, 3.2vw, 44px); margin-bottom: 14px; }
.showcase__overlay p { color: var(--text-soft); font-size: 17px; }
.cardstack { position: relative; height: 340px; perspective: 1100px; transform-style: preserve-3d;
  display: grid; place-items: center; animation: stackSway 10s ease-in-out infinite; }
.cardstack__sheet { position: absolute; width: 156px; height: 216px; border-radius: 16px; border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.05); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 24px 54px -22px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.12); }
.cardstack__sheet::before { content: ""; position: absolute; inset: 20px 16px; border-radius: 6px;
  background: repeating-linear-gradient(transparent 0 11px, rgba(255,255,255,.09) 11px 13px); }
.cardstack__sheet:nth-child(1) { transform: translateX(-186px) rotateY(34deg) scale(.78); opacity: .35; }
.cardstack__sheet:nth-child(2) { transform: translateX(-124px) rotateY(26deg) scale(.86); opacity: .5; }
.cardstack__sheet:nth-child(3) { transform: translateX(-62px) rotateY(15deg) scale(.93); opacity: .72; }
.cardstack__sheet:nth-child(4) { transform: translateX(0) rotateY(0) scale(1.06); opacity: 1; z-index: 5; }
.cardstack__sheet:nth-child(5) { transform: translateX(62px) rotateY(-15deg) scale(.93); opacity: .72; }
.cardstack__sheet:nth-child(6) { transform: translateX(124px) rotateY(-26deg) scale(.86); opacity: .5; }
.cardstack__sheet:nth-child(7) { transform: translateX(186px) rotateY(-34deg) scale(.78); opacity: .35; }
.cardstack__sheet--active { background: linear-gradient(160deg, rgba(70,236,214,.5), rgba(31,158,142,.3));
  border-color: rgba(110,240,222,.5); animation: activeGlow 3.2s ease-in-out infinite; }
@keyframes activeGlow {
  0%, 100% { box-shadow: 0 30px 64px -22px rgba(70,236,214,.45), inset 0 1px 0 rgba(255,255,255,.25); }
  50% { box-shadow: 0 36px 78px -16px rgba(70,236,214,.8), inset 0 1px 0 rgba(255,255,255,.4); }
}
.cardstack__sheet--active::before { background: repeating-linear-gradient(transparent 0 11px, rgba(255,255,255,.22) 11px 13px); }
@keyframes stackSway { 0%,100% { transform: rotateY(-7deg) rotateX(3deg); } 50% { transform: rotateY(7deg) rotateX(0deg); } }

/* ---------- Cards grid (services) ---------- */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature { padding: 36px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border-soft);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  transition: transform .35s var(--ease), border-color .35s, background .35s; position: relative; overflow: hidden; }
.feature::after { content: ""; position: absolute; top: 0; left: -60%; width: 45%; height: 100%;
  background: linear-gradient(115deg, transparent, rgba(255,255,255,.14), transparent); transform: skewX(-18deg);
  transition: left .8s var(--ease); pointer-events: none; }
.feature:hover { transform: translateY(-5px); border-color: rgba(70,236,214,.38); background: var(--surface-2); }
.feature:hover::after { left: 130%; }
.feature__ico { width: 54px; height: 54px; border-radius: 15px; display: grid; place-items: center; margin-bottom: 24px;
  color: var(--green-bright); background: linear-gradient(135deg, rgba(70,236,214,.18), rgba(31,158,142,.05)); border: 1px solid rgba(70,236,214,.24); }
.feature__ico svg { width: 26px; height: 26px; }
.feature h3 { font-size: 21px; font-weight: 400; margin-bottom: 11px; }
.feature p { color: var(--text-soft); font-size: 15px; }

/* ---------- Split (brain) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split__media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-soft);
  background: radial-gradient(circle at 50% 45%, rgba(70,236,214,.12), transparent 70%);
  display: grid; place-items: center; min-height: 380px; }
/* 3D glass cube */
.cube-scene { width: 100%; height: 100%; min-height: 380px; display: grid; place-items: center; perspective: 1000px; }
.cube { position: relative; width: 180px; height: 180px; transform-style: preserve-3d; animation: cubeSpin 22s linear infinite; }
.cube__face { position: absolute; width: 180px; height: 180px; border: 1px solid rgba(70,236,214,.45);
  background: rgba(70,236,214,.06); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  box-shadow: inset 0 0 42px rgba(70,236,214,.14); }
.cube__face::before { content: ""; position: absolute; inset: 22px; border-radius: 6px;
  background: repeating-linear-gradient(transparent 0 9px, rgba(110,240,222,.16) 9px 11px); }
.cube__face--front  { transform: translateZ(90px); }
.cube__face--back   { transform: rotateY(180deg) translateZ(90px); }
.cube__face--right  { transform: rotateY(90deg) translateZ(90px); }
.cube__face--left   { transform: rotateY(-90deg) translateZ(90px); }
.cube__face--top    { transform: rotateX(90deg) translateZ(90px); }
.cube__face--bottom { transform: rotateX(-90deg) translateZ(90px); }
.cube__core { position: absolute; inset: 52px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(150,255,235,.85), rgba(31,158,142,.3) 60%, transparent 75%);
  box-shadow: 0 0 50px rgba(70,236,214,.6); animation: pulse 3s infinite; }
@keyframes cubeSpin { from { transform: rotateX(-22deg) rotateY(0); } to { transform: rotateX(-22deg) rotateY(360deg); } }
.split__copy h2 { font-size: clamp(30px, 3.6vw, 46px); margin-bottom: 16px; }
.split__lead { color: var(--text-soft); font-size: 18px; margin-bottom: 30px; }
.checklist { display: flex; flex-direction: column; gap: 18px; }
.checklist li { position: relative; padding-left: 36px; color: var(--text-soft); font-size: 16px; }
.checklist li b { color: var(--text); font-weight: 500; }
.checklist li::before { content: ""; position: absolute; left: 0; top: 1px; width: 22px; height: 22px; border-radius: 7px;
  background: rgba(70,236,214,.14) no-repeat center / 14px
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none'%3E%3Cpath d='M5 12l4 4 10-10' stroke='%236ef0de' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  border: 1px solid rgba(70,236,214,.3); }

/* ---------- Process ---------- */
.process { position: relative; }
.process__glow { position: absolute; top: 8%; right: -8%; width: 46%; height: 64%; z-index: 0; pointer-events: none;
  background: radial-gradient(circle, rgba(70,236,214,.18), transparent 65%); filter: blur(60px);
  animation: drift 18s var(--ease) infinite alternate; }
.process .section__head, .process .steps { position: relative; z-index: 1; }
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.step { position: relative; padding: 30px 24px; border-radius: var(--radius-sm); border: 1px solid var(--border-soft);
  background: var(--surface); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.step__no { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 20px; border-radius: 50%;
  font-weight: 500; font-size: 17px; color: #04302b; background: linear-gradient(135deg, var(--green-bright), var(--green-deep)); }
.step h3 { font-size: 18px; font-weight: 400; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-soft); }

/* ---------- Cases ---------- */
.cases-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.case { padding: 30px; border-radius: var(--radius); border: 1px solid var(--border-soft); background: var(--surface);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); display: flex; flex-direction: column; }
.case--accent { background: linear-gradient(160deg, var(--glass-strong), #125249); border-color: rgba(255,255,255,.16); }
.case__field { font-size: 12.5px; letter-spacing: .04em; text-transform: uppercase; color: var(--text-mute); }
.case--accent .case__field { color: rgba(255,255,255,.72); }
.case__big { font-size: 56px; font-weight: 200; line-height: 1; letter-spacing: -0.03em; margin: 20px 0 12px; color: var(--green); }
.case--accent .case__big { color: #fff; }
.case__desc { font-size: 14px; color: var(--text-soft); margin-bottom: 24px; }
.case--accent .case__desc { color: rgba(255,255,255,.84); }
.case__foot { margin-top: auto; display: flex; align-items: baseline; justify-content: space-between; padding-top: 16px;
  border-top: 1px solid var(--border); font-size: 13px; color: var(--text-mute); }
.case--accent .case__foot { border-color: rgba(255,255,255,.18); color: rgba(255,255,255,.72); }
.case__foot b { font-size: 16px; font-weight: 500; color: var(--text); }
.case--accent .case__foot b { color: #fff; }

/* ---------- Plans ---------- */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.plan { position: relative; padding: 40px 34px; border-radius: var(--radius); border: 1px solid var(--border-soft);
  background: var(--surface); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); display: flex; flex-direction: column; }
.plan--featured { background: linear-gradient(165deg, rgba(70,236,214,.14), rgba(11,14,27,.4)); border-color: rgba(70,236,214,.4);
  box-shadow: 0 30px 70px -34px rgba(70,236,214,.5); }
.plan__badge { position: absolute; top: 22px; right: 22px; font-size: 12px; font-weight: 500; color: #04302b;
  background: var(--green-bright); padding: 5px 12px; border-radius: var(--radius-pill); }
.plan__name { font-size: 23px; font-weight: 400; margin-bottom: 10px; }
.plan__price { font-size: 30px; font-weight: 300; color: var(--green); margin-bottom: 4px; }
.plan__note { font-size: 14px; color: var(--text-mute); margin-bottom: 28px; }
.plan__list { display: flex; flex-direction: column; gap: 13px; margin-bottom: 32px; }
.plan__list li { position: relative; padding-left: 28px; font-size: 15px; color: var(--text-soft); }
.plan__list li::before { content: ""; position: absolute; left: 0; top: 6px; width: 16px; height: 16px;
  background: no-repeat center / contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none'%3E%3Cpath d='M5 12l4 4 10-10' stroke='%2346ECD6' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.plan .btn { margin-top: auto; }

/* ---------- Why ---------- */
.why { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: center; padding: 60px;
  border-radius: var(--radius); border: 1px solid var(--border-soft);
  background: linear-gradient(150deg, rgba(31,158,142,.16), var(--surface)); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.why__copy h2 { font-size: clamp(30px, 3.6vw, 44px); margin-bottom: 16px; }
.why__copy p { color: var(--text-soft); }
.why__list { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.why__list li { display: flex; gap: 16px; }
.why__ico { flex: none; width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; color: var(--green-bright);
  background: rgba(70,236,214,.1); border: 1px solid rgba(70,236,214,.22); }
.why__ico svg { width: 23px; height: 23px; }
.why__list b { font-size: 16px; font-weight: 500; display: block; margin-bottom: 4px; }
.why__list p { font-size: 14px; color: var(--text-soft); }

/* ---------- FAQ ---------- */
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.faq__item { border: 1px solid var(--border-soft); border-radius: var(--radius-sm); background: var(--surface);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); overflow: hidden; }
.faq__item summary { list-style: none; cursor: pointer; padding: 24px 28px; display: flex; align-items: center;
  justify-content: space-between; gap: 20px; font-size: 18px; font-weight: 400; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__plus { position: relative; flex: none; width: 18px; height: 18px; }
.faq__plus::before, .faq__plus::after { content: ""; position: absolute; inset: 0; margin: auto; background: var(--green); transition: transform .3s var(--ease), opacity .3s; }
.faq__plus::before { width: 18px; height: 2px; }
.faq__plus::after { width: 2px; height: 18px; }
.faq__item[open] .faq__plus::after { transform: rotate(90deg); opacity: 0; }
.faq__item p { padding: 0 28px 26px; color: var(--text-soft); font-size: 15.5px; }

/* ---------- CTA ---------- */
.cta { position: relative; overflow: hidden; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; padding: 64px;
  border-radius: 34px; border: 1px solid rgba(70,236,214,.28); background: linear-gradient(155deg, rgba(31,158,142,.3), rgba(11,14,27,.7)); }
.cta__glow { position: absolute; width: 60%; height: 130%; top: -40%; left: 52%; pointer-events: none; z-index: 0;
  background: radial-gradient(circle, rgba(70,236,214,.4), transparent 65%); filter: blur(60px);
  animation: drift 16s var(--ease) infinite alternate; }
.cta__copy, .cta__form { position: relative; z-index: 1; }
.cta__copy h2 { font-size: clamp(30px, 3.6vw, 44px); margin-bottom: 16px; }
.cta__copy p { color: var(--text-soft); margin-bottom: 28px; }
.cta__points { display: flex; flex-direction: column; gap: 14px; }
.cta__points li { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text); }
.cta__points .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); flex: none; }

.cta__form { background: rgba(11,14,27,.5); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); display: flex; flex-direction: column; gap: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 13.5px; color: var(--text-soft); }
.field input, .field textarea { font-family: var(--font); font-size: 15px; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 12px; padding: 13px 16px; resize: vertical; transition: border-color .2s, background .2s; }
.field input::placeholder, .field textarea::placeholder { color: var(--text-mute); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--green); background: var(--surface-2); }

/* Consent checkbox */
.consent { display: flex; align-items: flex-start; gap: 11px; cursor: pointer; font-size: 13px; color: var(--text-soft); line-height: 1.5; }
.consent input { position: absolute; opacity: 0; width: 0; height: 0; }
.consent__box { flex: none; width: 20px; height: 20px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface);
  display: grid; place-items: center; color: #04302b; transition: background .2s, border-color .2s; margin-top: 1px; }
.consent__box svg { width: 14px; height: 14px; opacity: 0; transition: opacity .15s; }
.consent input:checked + .consent__box { background: var(--green-bright); border-color: var(--green-bright); }
.consent input:checked + .consent__box svg { opacity: 1; }
.consent input:focus-visible + .consent__box { outline: 2px solid var(--green); outline-offset: 2px; }
.consent a { color: var(--green); text-decoration: underline; text-underline-offset: 2px; }
.cta__success { font-size: 14.5px; color: var(--green-bright); text-align: center; padding: 12px;
  border: 1px solid rgba(70,236,214,.4); border-radius: 12px; background: rgba(70,236,214,.08); }
.form-error, .quiz__err { font-size: 14px; color: #ff8585; text-align: center; padding: 12px;
  border: 1px solid rgba(255,90,90,.38); border-radius: 12px; background: rgba(255,90,90,.08); }
.quiz__err { margin-bottom: 14px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border-soft); padding-block: 60px 32px; margin-top: 50px; }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 44px; padding-bottom: 44px; border-bottom: 1px solid var(--border-soft); }
.footer__brand p { color: var(--text-soft); font-size: 15px; max-width: 340px; margin-top: 18px; }
.footer__col { display: flex; flex-direction: column; gap: 12px; }
.footer__col span { font-size: 14px; color: var(--text-mute); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
.footer__col a { color: var(--text-soft); font-size: 15px; transition: color .2s; }
.footer__col a:hover { color: var(--green); }
.footer__note { color: var(--text-mute); font-size: 14px; line-height: 1.5; }

/* CTA contacts */
.cta__contacts { margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 4px; }
.cta__contacts-label { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-mute); margin-bottom: 4px; }
.cta__phone { font-size: 26px; font-weight: 300; color: var(--text); letter-spacing: -0.01em; transition: color .2s; }
.cta__phone:hover { color: var(--green); }
.cta__mail { font-size: 15px; color: var(--green); }
.footer__bottom { display: flex; justify-content: space-between; padding-top: 26px; font-size: 13.5px; color: var(--text-mute); flex-wrap: wrap; gap: 10px; }
.footer__legal { display: flex; gap: 20px; }
.footer__legal a:hover { color: var(--green); }

/* ---------- Cookie banner ---------- */
.cookie { position: fixed; left: 24px; right: 24px; bottom: 24px; z-index: 80; display: flex; justify-content: center;
  animation: cookieUp .5s var(--ease); }
.cookie[hidden] { display: none; }
.cookie__inner { display: flex; align-items: center; gap: 20px; max-width: 920px; width: 100%; padding: 18px 22px;
  border-radius: 18px; border: 1px solid rgba(70,236,214,.25); background: rgba(11,14,27,.82);
  backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); box-shadow: 0 30px 70px -25px rgba(0,0,0,.9); }
.cookie__ico { flex: none; width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  color: var(--green-bright); background: rgba(70,236,214,.1); border: 1px solid rgba(70,236,214,.22); }
.cookie__ico svg { width: 22px; height: 22px; }
.cookie__text { font-size: 14px; color: var(--text-soft); flex: 1; }
.cookie__text a { color: var(--green); text-decoration: underline; text-underline-offset: 2px; }
.cookie__actions { display: flex; gap: 10px; flex: none; }
@keyframes cookieUp { from { transform: translateY(120%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ---------- Quiz / calculator ---------- */
.quiz { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 24px; }
.quiz[hidden] { display: none; }
.quiz__backdrop { position: absolute; inset: 0; background: rgba(5,7,16,.72); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); animation: fade .3s; }
.quiz__panel { position: relative; width: 100%; max-width: 660px; max-height: 90vh; overflow-y: auto;
  background: linear-gradient(160deg, rgba(28,150,134,.16), rgba(11,14,27,.97)); border: 1px solid rgba(70,236,214,.25);
  border-radius: 26px; padding: clamp(28px, 4vw, 44px); box-shadow: 0 40px 100px -30px rgba(0,0,0,.9); animation: quizUp .4s var(--ease); }
.quiz__close { position: absolute; top: 18px; right: 18px; width: 40px; height: 40px; border-radius: 11px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text); cursor: pointer; display: grid; place-items: center; transition: border-color .2s; }
.quiz__close:hover { border-color: rgba(70,236,214,.4); }
.quiz__close svg { width: 20px; height: 20px; }
.quiz__progress { height: 6px; border-radius: 99px; background: rgba(255,255,255,.1); overflow: hidden; margin-bottom: 28px; max-width: 78%; }
.quiz__progress-bar { display: block; height: 100%; width: 0; border-radius: 99px; background: linear-gradient(90deg, var(--green-deep), var(--green-bright)); transition: width .4s var(--ease); }
.quiz__step-label { font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--green); margin-bottom: 10px; }
.quiz__q { font-weight: 300; font-size: clamp(22px, 3vw, 27px); line-height: 1.12; margin-bottom: 24px; letter-spacing: -0.02em; }
.quiz__hint { color: var(--text-mute); font-size: 14px; margin: -16px 0 22px; }
.quiz__options { display: grid; gap: 12px; margin-bottom: 28px; }
.quiz__options--2 { grid-template-columns: 1fr 1fr; }
.quiz__opt { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-radius: 14px; border: 1px solid var(--border);
  background: var(--surface); cursor: pointer; font-size: 15px; color: var(--text); text-align: left; transition: border-color .2s, background .2s; }
.quiz__opt:hover { border-color: rgba(70,236,214,.4); background: var(--surface-2); }
.quiz__opt.is-selected { border-color: var(--green); background: rgba(70,236,214,.1); }
.quiz__opt-check { flex: none; width: 22px; height: 22px; border-radius: 7px; border: 1px solid var(--border); display: grid; place-items: center; color: #04302b; }
.quiz__opt-check svg { width: 14px; height: 14px; opacity: 0; transition: opacity .15s; }
.quiz__opt.is-selected .quiz__opt-check { background: var(--green-bright); border-color: var(--green-bright); }
.quiz__opt.is-selected .quiz__opt-check svg { opacity: 1; }
.quiz__nav { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.quiz__back { background: none; border: none; color: var(--text-mute); cursor: pointer; font-size: 15px; font-family: var(--font); padding: 8px 4px; }
.quiz__back:hover { color: var(--text); }
.quiz__back[hidden] { display: none; }
/* result step */
.quiz__estimate { font-size: clamp(34px, 5vw, 44px); font-weight: 300; color: var(--green); margin: 6px 0 6px; letter-spacing: -0.02em; line-height: 1; }
.quiz__est-note { color: var(--text-soft); font-size: 15px; margin-bottom: 24px; }
.quiz__fields { display: grid; gap: 14px; margin-bottom: 18px; }
.quiz__success { font-size: 16px; color: var(--green-bright); text-align: center; padding: 24px; border: 1px solid rgba(70,236,214,.4);
  border-radius: 14px; background: rgba(70,236,214,.08); }
@keyframes quizUp { from { transform: translateY(30px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .orb, .orb__ring, .orb__node, .glass-card--main, .glass-card--mini, .bg-glow, .process__glow,
  .cta__glow, .cardstack, .cardstack__sheet--active, .orb__core::before, .cube, .cube__core,
  .gc__tag::before { animation: none !important; }
}

/* ---------- 4K: широкий контент, небольшие поля ---------- */
@media (min-width: 2560px) {
  :root { --maxw: 3360px; --pad: 80px; }
  .section { padding-block: 180px; }
  .cards-grid { grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .section__head { max-width: 900px; }
  .hero__title { font-size: 92px; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; gap: 72px; }
  .hero__visual { max-width: 520px; min-height: 440px; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .why { grid-template-columns: 1fr; gap: 36px; padding: 40px; }
  .cta { grid-template-columns: 1fr; gap: 36px; }
  .showcase { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 760px) {
  .section { padding-block: 84px; }
  .nav__links { position: fixed; inset: 76px 0 auto 0; flex-direction: column; gap: 0;
    background: rgba(11,14,27,.97); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border);
    padding: 12px 24px 24px; transform: translateY(-120%); transition: transform .35s var(--ease); z-index: 40; }
  .nav__links.is-open { transform: translateY(0); }
  .nav__links a { padding: 15px 0; border-bottom: 1px solid var(--border-soft); }
  .nav__actions .btn--ghost { display: none; }
  .nav__burger { display: grid; place-items: center; }
  .cards-grid, .value-grid, .plans { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .why__list { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 30px; }
  .hero__stats { gap: 24px; }
  .why, .cta, .cta__form { padding: 28px; }
  .cookie__inner { flex-direction: column; align-items: flex-start; gap: 14px; }
  .cookie__actions { width: 100%; }
  .cookie__actions .btn { flex: 1; }
  .field-row { grid-template-columns: 1fr; }
  .faq { grid-template-columns: 1fr; }
  .quiz__options--2 { grid-template-columns: 1fr; }
}