/* ============================================================
   Metalabs — лаборатория цифровых решений
   Стиль: liquid-metal + neural · тёмная иридесцентная эстетика
   Бренд-цвет: фиолетовый #7C5CFF
   ============================================================ */

/* ----------------------- ПЕРЕМЕННЫЕ ----------------------- */
:root {
  /* фон / поверхности */
  --bg:            #060609;
  --bg-2:          #0a0a12;
  --panel:         rgba(255, 255, 255, 0.025);
  --panel-2:       rgba(255, 255, 255, 0.045);
  --border:        rgba(255, 255, 255, 0.08);
  --border-hi:     rgba(255, 255, 255, 0.16);

  /* текст */
  --text:          #ECEAF6;
  --text-dim:      #A2A0BC;
  --text-faint:    #6B6A87;

  /* бренд + направления */
  --violet:        #7C5CFF;   /* Metalabs brand */
  --violet-soft:   #A98BFF;
  --magenta:       #E15CFF;
  --cyan:          #49B6FF;
  --blue:          #3D7BFF;
  --amber:         #FFB14D;
  --orange:        #FF7A3D;
  --mint:          #46E5B0;

  /* градиенты */
  --grad-brand:  linear-gradient(110deg, var(--violet-soft) 0%, var(--magenta) 48%, var(--cyan) 100%);
  --grad-ai:     linear-gradient(115deg, var(--violet-soft) 0%, var(--magenta) 100%);
  --grad-onec:   linear-gradient(120deg, var(--amber) 0%, var(--orange) 100%);
  --grad-web:    linear-gradient(120deg, var(--cyan) 0%, var(--blue) 100%);

  /* раскладка */
  --maxw:        1180px;
  --gutter:      clamp(20px, 5vw, 40px);
  --radius:      22px;
  --radius-sm:   14px;

  --ease:        cubic-bezier(.16, 1, .3, 1);
  --shadow:      0 30px 80px -30px rgba(0, 0, 0, .8);
}

/* ----------------------- БАЗА ----------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: -0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: 'Unbounded', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
  overflow-wrap: break-word;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
img, canvas { display: block; max-width: 100%; }
b { font-weight: 700; color: var(--text); }

::selection { background: rgba(124, 92, 255, .35); color: #fff; }

/* плавный заход секций под фикс-навбар */
section[id], main[id] { scroll-margin-top: 96px; }

/* ----------------------- ФОН ----------------------- */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(1200px 800px at 75% -10%, rgba(124, 92, 255, .12), transparent 60%),
    radial-gradient(1000px 700px at 5% 15%, rgba(73, 182, 255, .07), transparent 55%),
    var(--bg);
}

.bg-grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 80%);
}

.bg-blob {
  position: absolute;
  width: 46vw;
  height: 46vw;
  border-radius: 50%;
  filter: blur(110px);
  opacity: .5;
  will-change: transform;
}
.bg-blob--1 { top: -12%;  left: 58%; background: radial-gradient(circle, rgba(124, 92, 255, .55), transparent 70%); animation: float1 22s var(--ease) infinite; }
.bg-blob--2 { top: 38%;  left: -14%; background: radial-gradient(circle, rgba(73, 182, 255, .4), transparent 70%);  animation: float2 28s var(--ease) infinite; }
.bg-blob--3 { top: 78%;  left: 62%;  background: radial-gradient(circle, rgba(225, 92, 255, .35), transparent 70%); animation: float1 26s var(--ease) infinite reverse; }

@keyframes float1 { 50% { transform: translate(-6%, 8%) scale(1.12); } }
@keyframes float2 { 50% { transform: translate(10%, -6%) scale(1.08); } }

.bg-noise {
  position: absolute;
  inset: 0;
  opacity: .035;
  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='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ----------------------- КНОПКИ ----------------------- */
.btn {
  --b-pad: 14px 26px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: var(--b-pad);
  border-radius: 100px;
  font-family: 'Manrope', sans-serif;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease),
              background .35s var(--ease), border-color .35s var(--ease);
  white-space: nowrap;
}
.btn i { font-size: 1.15em; transition: transform .35s var(--ease); }

.btn--primary {
  background: var(--grad-brand);
  color: #0a0612;
  font-weight: 700;
  box-shadow: 0 10px 30px -8px rgba(124, 92, 255, .6);
}
.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px -10px rgba(124, 92, 255, .8);
}
.btn--primary:hover i { transform: translateX(4px); }

.btn--ghost {
  background: var(--panel);
  color: var(--text);
  border-color: var(--border-hi);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover {
  background: var(--panel-2);
  border-color: rgba(124, 92, 255, .6);
  transform: translateY(-3px);
}
.btn--ghost:hover i { transform: translate(3px, -3px); }

/* ----------------------- НАВИГАЦИЯ ----------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 18px var(--gutter);
  transition: padding .4s var(--ease), background .4s var(--ease),
              border-color .4s var(--ease), backdrop-filter .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  padding: 12px var(--gutter);
  background: rgba(8, 8, 14, .72);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--border);
}

.nav__logo { display: flex; align-items: center; gap: 11px; margin-right: auto; }
.nav__logo-mark {
  position: relative;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--grad-brand);
  display: grid;
  place-items: center;
  box-shadow: 0 6px 20px -6px rgba(124, 92, 255, .8);
}
.nav__logo-dot {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: #0a0612;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .25);
}
.nav__logo-text { font-family: 'Unbounded', sans-serif; font-weight: 500; font-size: 20px; letter-spacing: -0.02em; }
.nav__logo-text b { font-weight: 800; }

.nav__links { display: flex; gap: 6px; }
.nav__links a {
  padding: 8px 15px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dim);
  transition: color .3s var(--ease), background .3s var(--ease);
}
.nav__links a:hover { color: var(--text); background: var(--panel); }

.nav__cta { padding: 11px 20px; font-size: 15px; }

.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 0;
  border: 1px solid var(--border-hi);
  border-radius: 12px;
  background: var(--panel);
  cursor: pointer;
}
.nav__burger span {
  display: block;
  width: 19px; height: 2px;
  margin: 0 auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform .35s var(--ease), opacity .25s var(--ease);
}
.nav.is-menu-open .nav__burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-menu-open .nav__burger span:nth-child(2) { opacity: 0; }
.nav.is-menu-open .nav__burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ----------------------- ОБОЛОЧКА СЕКЦИЙ ----------------------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(80px, 12vw, 150px) var(--gutter);
}

.section__head { max-width: 760px; margin: 0 auto clamp(48px, 7vw, 80px); text-align: center; }
.section__title { font-size: clamp(27px, 4.2vw, 46px); }
.section__sub {
  margin-top: 22px;
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--text-dim);
  line-height: 1.65;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  padding: 7px 16px;
  border-radius: 100px;
  border: 1px solid var(--border-hi);
  background: var(--panel);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--violet-soft);
}
.eyebrow--ai { color: var(--magenta); border-color: rgba(225, 92, 255, .3); }

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

/* ----------------------- HERO ----------------------- */
.hero {
  position: relative;
  min-height: 90svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 124px var(--gutter) 84px;
  overflow: hidden;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: .9; }

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border-radius: 100px;
  border: 1px solid var(--border-hi);
  background: rgba(10, 10, 18, .5);
  backdrop-filter: blur(10px);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
}
.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 0 rgba(70, 229, 176, .6);
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(70, 229, 176, .55); }
  70%  { box-shadow: 0 0 0 10px rgba(70, 229, 176, 0); }
  100% { box-shadow: 0 0 0 0 rgba(70, 229, 176, 0); }
}

.hero__title {
  margin-top: 24px;
  font-size: clamp(32px, 4.6vw, 58px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.06;
}
.hero__lead {
  margin: 22px auto 0;
  max-width: 560px;
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--text-dim);
  line-height: 1.6;
}
.hero__actions { margin-top: 32px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.hero__stats {
  margin-top: 52px;
  display: flex;
  gap: clamp(24px, 6vw, 72px);
  justify-content: center;
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat__num {
  display: block;
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  font-size: clamp(28px, 5vw, 44px);
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}
.stat__label { display: block; margin-top: 6px; font-size: 13.5px; color: var(--text-faint); max-width: 180px; }

.hero__scroll {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid var(--border-hi);
  border-radius: 100px;
  z-index: 1;
}
.hero__scroll span {
  position: absolute;
  top: 8px; left: 50%;
  width: 4px; height: 8px;
  margin-left: -2px;
  border-radius: 4px;
  background: var(--violet-soft);
  animation: scrolldot 1.8s var(--ease) infinite;
}
@keyframes scrolldot { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 80% { opacity: 0; transform: translateY(14px); } 100% { opacity: 0; } }

/* ----------------------- БЕГУЩАЯ СТРОКА ----------------------- */
.marquee {
  position: relative;
  padding: 26px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  white-space: nowrap;
  animation: marquee 38s linear infinite;
  will-change: transform;
}
.marquee__track span {
  font-family: 'Unbounded', sans-serif;
  font-weight: 500;
  font-size: 22px;
  color: var(--text-faint);
}
.marquee__track .sep { color: var(--violet); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ----------------------- УСЛУГИ — 3 КАРТЫ ----------------------- */
.cards3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.dcard {
  --accent: var(--violet);
  --accent-grad: var(--grad-brand);
  position: relative;
  padding: 34px 30px 30px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, .01));
  overflow: hidden;
  transition: transform .5s var(--ease), border-color .5s var(--ease);
  isolation: isolate;
}
.dcard::before {                 /* верхняя градиентная линия */
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent-grad);
  opacity: .8;
}
.dcard__glow {
  position: absolute;
  inset: -1px;
  z-index: -1;
  background: radial-gradient(420px 300px at 50% -10%, var(--accent), transparent 70%);
  opacity: 0;
  transition: opacity .5s var(--ease);
}
.dcard:hover { transform: translateY(-8px); border-color: var(--border-hi); }
.dcard:hover .dcard__glow { opacity: .14; }

.dcard__icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: grid; place-items: center;
  font-size: 28px;
  color: #fff;
  background: var(--accent-grad);
  box-shadow: 0 12px 30px -10px var(--accent);
  margin-bottom: 22px;
}
.dcard__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.dcard__title { font-size: 24px; line-height: 1.18; margin-bottom: 14px; }
.dcard__text { color: var(--text-dim); font-size: 15.5px; margin-bottom: 22px; }

.dcard__list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 26px; }
.dcard__list li {
  display: flex;
  gap: 11px;
  font-size: 14.5px;
  color: var(--text-dim);
  line-height: 1.45;
}
.dcard__list i {
  flex-shrink: 0;
  margin-top: 3px;
  font-size: 14px;
  color: var(--accent);
}

.dcard__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  color: var(--accent);
  transition: gap .3s var(--ease);
}
.dcard__link i { transition: transform .3s var(--ease); }
.dcard__link:hover i { transform: translateX(5px); }

/* акценты направлений */
.dcard--onec { --accent: var(--amber);   --accent-grad: var(--grad-onec); }
.dcard--web  { --accent: var(--cyan);    --accent-grad: var(--grad-web); }
.dcard--ai   { --accent: var(--magenta); --accent-grad: var(--grad-ai); }

/* ----------------------- AI.MOZG ----------------------- */
.ai-section { position: relative; }
.ai-aura {
  position: absolute;
  top: 4%; left: 50%;
  width: min(900px, 90vw);
  height: 520px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(225, 92, 255, .14), transparent 65%);
  filter: blur(40px);
  z-index: -1;
  pointer-events: none;
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 64px;
}
.feat {
  padding: 30px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .008));
  transition: transform .45s var(--ease), border-color .45s var(--ease), background .45s var(--ease);
}
.feat:hover { transform: translateY(-6px); border-color: rgba(225, 92, 255, .35); background: rgba(225, 92, 255, .04); }
.feat i {
  font-size: 32px;
  background: var(--grad-ai);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.feat h4 { font-family: 'Manrope', sans-serif; font-weight: 700; font-size: 19px; margin: 16px 0 10px; letter-spacing: -0.01em; }
.feat p { color: var(--text-dim); font-size: 15px; }

/* тарифы */
.tiers {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .006));
  padding: clamp(28px, 4vw, 44px);
}
.tiers__head { text-align: center; margin-bottom: 32px; }
.tiers__head h3 { font-size: clamp(22px, 3.4vw, 30px); }
.tiers__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

.tier {
  position: relative;
  padding: 28px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--panel);
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.tier:hover { transform: translateY(-5px); border-color: var(--border-hi); }
.tier--mid {
  border-color: rgba(124, 92, 255, .45);
  background: linear-gradient(180deg, rgba(124, 92, 255, .1), rgba(124, 92, 255, .02));
}
.tier--mid::after {
  content: "популярно";
  position: absolute;
  top: -11px; left: 24px;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 11px; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  color: #0a0612;
  background: var(--grad-brand);
}
.tier__name { font-family: 'Unbounded', sans-serif; font-weight: 600; font-size: 21px; }
.tier__for { margin-top: 4px; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--violet-soft); }
.tier__desc { margin-top: 14px; font-size: 14.5px; color: var(--text-dim); }

/* ----------------------- КЕЙСЫ ----------------------- */
.cases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.case {
  padding: 28px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .006));
  transition: transform .45s var(--ease), border-color .45s var(--ease);
}
.case:hover { transform: translateY(-6px); border-color: var(--border-hi); }
.case--feature {
  grid-column: 1 / -1;
  background: linear-gradient(120deg, rgba(124, 92, 255, .12), rgba(225, 92, 255, .05));
  border-color: rgba(124, 92, 255, .35);
}
.case__top { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 14px; flex-wrap: wrap; }
.case__domain { font-family: 'Unbounded', sans-serif; font-weight: 600; font-size: 20px; }
.case__chip {
  padding: 5px 13px;
  border-radius: 100px;
  font-size: 12.5px;
  font-weight: 600;
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  white-space: nowrap;
}
.case__chip--onec { color: var(--amber);   border-color: rgba(255, 177, 77, .35); }
.case__chip--web  { color: var(--cyan);    border-color: rgba(73, 182, 255, .35); }
.case__chip--ai   { color: var(--magenta); border-color: rgba(225, 92, 255, .4); }
.case__desc { color: var(--text-dim); font-size: 15px; }

.cases__note {
  margin-top: 28px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-hi);
  font-size: 14px;
  color: var(--text-faint);
}
.cases__note i { color: var(--violet-soft); margin-top: 2px; font-size: 16px; }

/* ----------------------- КОМАНДА ----------------------- */
.team { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.member {
  padding: 34px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .006));
  text-align: center;
  transition: transform .45s var(--ease), border-color .45s var(--ease);
}
.member:hover { transform: translateY(-6px); border-color: var(--border-hi); }
.member__avatar {
  width: 78px; height: 78px;
  margin: 0 auto 20px;
  border-radius: 22px;
  display: grid; place-items: center;
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  font-size: 26px;
  color: #0a0612;
}
.member__avatar i { font-size: 32px; color: #0a0612; }
.member__avatar--a { background: var(--grad-brand); }
.member__avatar--k { background: var(--grad-web); }
.member__avatar--m { background: var(--grad-ai); }
.member__name { font-family: 'Manrope', sans-serif; font-weight: 700; font-size: 19px; }
.member__role { display: block; margin: 6px 0 14px; font-size: 13.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--violet-soft); }
.member__bio { color: var(--text-dim); font-size: 14.5px; }
.member--team .member__role { color: var(--magenta); }

/* ----------------------- ПОДХОД ----------------------- */
.priority-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.priority {
  padding: 10px 22px;
  border-radius: 100px;
  border: 1px solid var(--border-hi);
  background: var(--panel);
  font-family: 'Unbounded', sans-serif;
  font-weight: 500;
  font-size: 15px;
}
.priority--last {
  background: var(--grad-brand);
  color: #0a0612;
  border-color: transparent;
  font-weight: 600;
}
.priority-bar > i { color: var(--text-faint); font-size: 18px; }

.principles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.principle {
  padding: 26px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .006));
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.principle:hover { transform: translateY(-5px); border-color: var(--border-hi); }
.principle i {
  font-size: 28px;
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.principle h4 { font-family: 'Manrope', sans-serif; font-weight: 700; font-size: 17px; margin: 14px 0 9px; }
.principle p { color: var(--text-dim); font-size: 14px; }

/* ----------------------- CTA ----------------------- */
.cta-section { padding-top: 0; }
.cta {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  padding: clamp(48px, 8vw, 84px) clamp(28px, 6vw, 64px);
  border-radius: 32px;
  border: 1px solid rgba(124, 92, 255, .3);
  background:
    radial-gradient(700px 400px at 50% 0%, rgba(124, 92, 255, .18), transparent 65%),
    linear-gradient(180deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, .008));
  text-align: center;
  overflow: hidden;
}
.cta__aura {
  position: absolute;
  inset: 0;
  background: conic-gradient(from 0deg at 50% 50%, transparent, rgba(124, 92, 255, .1), transparent 40%);
  z-index: -1;
}
.cta__title { font-size: clamp(26px, 4vw, 44px); margin-top: 6px; }
.cta__sub { margin: 22px auto 0; max-width: 560px; font-size: clamp(16px, 2.3vw, 19px); color: var(--text-dim); }
.cta__actions { margin-top: 36px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cta__note {
  margin-top: 26px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-faint);
}
.cta__note i { color: var(--amber); }

/* ----------------------- FOOTER ----------------------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: clamp(40px, 6vw, 64px) var(--gutter);
}
.footer__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.footer__brand .nav__logo-text { font-size: 22px; }
.footer__brand p { margin-top: 12px; color: var(--text-faint); font-size: 14px; }
.footer__nav { display: flex; gap: 22px; flex-wrap: wrap; }
.footer__nav a { color: var(--text-dim); font-size: 15px; transition: color .3s var(--ease); }
.footer__nav a:hover { color: var(--text); }
.footer__copy { width: 100%; padding-top: 24px; margin-top: 8px; border-top: 1px solid var(--border); color: var(--text-faint); font-size: 13.5px; }

/* ----------------------- SCROLL-REVEAL ----------------------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .09s; }
.reveal[data-delay="2"] { transition-delay: .18s; }
.reveal[data-delay="3"] { transition-delay: .27s; }
.reveal[data-delay="4"] { transition-delay: .36s; }
.reveal[data-delay="5"] { transition-delay: .45s; }

/* ----------------------- МОАТ (чем отличается) ----------------------- */
.moat {
  position: relative;
  margin-bottom: 22px;
  padding: clamp(28px, 4vw, 44px);
  border-radius: var(--radius);
  border: 1px solid rgba(225, 92, 255, .28);
  background:
    radial-gradient(600px 320px at 50% 0%, rgba(225, 92, 255, .12), transparent 65%),
    linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .006));
  overflow: hidden;
}
.moat__head { text-align: center; max-width: 680px; margin: 0 auto 32px; }
.moat__head h3 { font-size: clamp(23px, 3.6vw, 34px); line-height: 1.12; }
.moat__head p { margin-top: 16px; color: var(--text-dim); font-size: clamp(15px, 2vw, 17px); }
.moat__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.moat__item {
  padding: 22px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(10, 8, 16, .35);
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.moat__item:hover { transform: translateY(-4px); border-color: rgba(225, 92, 255, .4); }
.moat__item i {
  font-size: 26px;
  background: var(--grad-ai);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.moat__item h4 { font-family: 'Manrope', sans-serif; font-weight: 700; font-size: 16.5px; margin: 12px 0 8px; }
.moat__item p { color: var(--text-dim); font-size: 14px; }

/* ----------------------- КОНТРАСТ (обычный ИИ vs AI.Mozg) ----------------------- */
.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  margin-bottom: 64px;
}
.compare__col {
  padding: 26px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .006));
}
.compare__col--after {
  border-color: rgba(124, 92, 255, .4);
  background: linear-gradient(180deg, rgba(124, 92, 255, .1), rgba(124, 92, 255, .02));
}
.compare__tag {
  display: inline-block;
  margin-bottom: 16px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 13px; font-weight: 600;
  letter-spacing: .03em;
  border: 1px solid var(--border-hi);
  color: var(--text-faint);
}
.compare__tag--ai { color: #0a0612; background: var(--grad-brand); border-color: transparent; font-weight: 700; }
.compare__col ul { display: flex; flex-direction: column; gap: 11px; }
.compare__col li { display: flex; gap: 10px; font-size: 14.5px; color: var(--text-dim); line-height: 1.4; }
.compare__col li i { flex-shrink: 0; margin-top: 3px; font-size: 13px; }
.compare__col--before li i { color: #e5688a; }
.compare__col--after li i { color: var(--mint); }
.compare__mid {
  display: grid; place-items: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-hi);
  background: var(--panel);
  color: var(--violet-soft);
  font-size: 18px;
}

/* мини-списки в тарифах */
.tier__list { margin-top: 16px; display: flex; flex-direction: column; gap: 9px; }
.tier__list li { display: flex; gap: 9px; font-size: 13.5px; color: var(--text-dim); line-height: 1.4; }
.tier__list li i { flex-shrink: 0; margin-top: 2px; font-size: 12px; color: var(--violet-soft); }

/* ----------------------- ШАГИ (как работаем) ----------------------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 64px; }
.step {
  position: relative;
  padding: 26px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .006));
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.step:hover { transform: translateY(-5px); border-color: var(--border-hi); }
.step__num {
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  font-size: 30px;
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}
.step h4 { font-family: 'Manrope', sans-serif; font-weight: 700; font-size: 18px; margin: 12px 0 9px; }
.step p { color: var(--text-dim); font-size: 14px; }

.subhead {
  text-align: center;
  font-size: clamp(20px, 3vw, 28px);
  margin: 8px 0 34px;
}

/* ----------------------- FAQ ----------------------- */
.faq { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq__item {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .006));
  overflow: hidden;
  transition: border-color .35s var(--ease), background .35s var(--ease);
}
.faq__item[open] { border-color: rgba(124, 92, 255, .4); background: rgba(124, 92, 255, .04); }
.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-family: 'Manrope', sans-serif;
  font-weight: 600;
  font-size: 16.5px;
  list-style: none;
  transition: color .3s var(--ease);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--violet-soft); }
.faq__item summary i {
  flex-shrink: 0;
  display: grid; place-items: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border-hi);
  font-size: 14px;
  color: var(--violet-soft);
  transition: transform .35s var(--ease), background .35s var(--ease);
}
.faq__item[open] summary i { transform: rotate(45deg); background: rgba(124, 92, 255, .15); }
.faq__item p { padding: 0 24px 22px; color: var(--text-dim); font-size: 15px; line-height: 1.6; }

/* ----------------------- АДАПТИВ ----------------------- */
@media (max-width: 900px) {
  .cards3, .ai-grid, .team, .principles, .tiers__grid, .cases,
  .moat__grid, .steps { grid-template-columns: 1fr; }
  .moat__grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .compare { grid-template-columns: 1fr; }
  .compare__mid { transform: rotate(90deg); margin: -4px auto; }
  .case--feature { grid-column: auto; }
  .principles { grid-template-columns: repeat(2, 1fr); }

  .nav__links {
    position: fixed;
    top: 70px; left: var(--gutter); right: var(--gutter);
    flex-direction: column;
    gap: 4px;
    padding: 14px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: rgba(10, 10, 18, .96);
    backdrop-filter: blur(20px);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .35s var(--ease), transform .35s var(--ease);
  }
  .nav.is-menu-open .nav__links { opacity: 1; transform: none; pointer-events: auto; }
  .nav__links a { padding: 12px 16px; font-size: 16px; }

  .nav__cta { display: none; }
  .nav__burger { display: flex; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .principles, .moat__grid, .steps { grid-template-columns: 1fr; }
  .hero { padding-top: 108px; min-height: auto; }
  .hero__badge { font-size: 12.5px; padding: 8px 14px; line-height: 1.4; }
  .hero__title { font-size: clamp(22px, 6.6vw, 28px); letter-spacing: -0.03em; }
  .section__title { font-size: clamp(20px, 5.8vw, 30px); }
  .hero__lead { font-size: 15.5px; }
  .hero__stats { gap: 26px; }
  .stat__label { max-width: none; }
  .priority-bar { gap: 8px; }
  .priority { padding: 8px 16px; font-size: 13.5px; }
  .priority-bar > i { font-size: 14px; }
}

/* ----------------------- ДОСТУПНОСТЬ ----------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}