/* ============================================================
   REYRO STUDIONS — portfolio one-pager
   dark premium / graphite / soft glassmorphism / blue accent
   темы: dark / light; режимы: full / lite
   ============================================================ */

:root {
  --bg: #05070D;
  --panel: rgba(17, 24, 39, 0.42);
  --panel-solid: #111827;
  --text-primary: #F5F7FA;
  --text-secondary: #9CA3AF;
  --blue: #2F80FF;
  --blue-glow: #5AA7FF;
  --glass-border: rgba(255, 255, 255, 0.10);
  --grid-line: rgba(90, 167, 255, 0.045);
  --title-grad-a: #FFFFFF;
  --title-grad-b: #B9C4D6;
  --input-bg: rgba(255, 255, 255, 0.04);

  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Manrope", "Inter", sans-serif;

  --radius-lg: 28px;
  --radius-md: 20px;
  --safe: 24px;
  --nav-h: 72px;
}

html[data-theme="light"] {
  --bg: #F4F6FA;
  --panel: rgba(255, 255, 255, 0.65);
  --panel-solid: #FFFFFF;
  --text-primary: #0B0F17;
  --text-secondary: #4B5563;
  --glass-border: rgba(11, 15, 23, 0.10);
  --grid-line: rgba(47, 128, 255, 0.07);
  --title-grad-a: #0B0F17;
  --title-grad-b: #3D4B63;
  --input-bg: rgba(11, 15, 23, 0.04);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* защита текста от выделения/копирования — поля формы остаются редактируемыми */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

input, textarea {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

.blue-r { color: var(--blue); text-shadow: 0 0 24px rgba(47, 128, 255, 0.55); }

/* ============ ЛОАДЕР ============ */

.loader {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  background: var(--bg);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.is-done { opacity: 0; visibility: hidden; pointer-events: none; }

.loader__text {
  display: flex;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4.5vw, 56px);
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.loader__text span {
  opacity: 0;
  transform: translateY(14px);
  animation: loader-letter 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: calc(var(--i) * 70ms);
}

.loader__text .blue { color: #2F80FF; text-shadow: 0 0 28px rgba(47, 128, 255, 0.6); }

.loader__space { width: 0.5em; }

@keyframes loader-letter {
  to { opacity: 1; transform: translateY(0); }
}

.loader__bar {
  width: min(280px, 60vw);
  height: 2px;
  border-radius: 2px;
  background: var(--glass-border);
  overflow: hidden;
}

.loader__bar span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #2F80FF, #5AA7FF);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* ============ ЧАСТИЦЫ ============ */

#particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

html[data-perf="lite"] #particles { display: none; }

/* контент поверх частиц */
main, .nav, .footer { position: relative; z-index: 1; }

/* ============ ШАПКА ============ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 var(--safe);
  transition: background-color 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--glass-border);
}

html[data-perf="lite"] .nav.is-scrolled {
  background: var(--bg);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.16em;
  color: var(--text-primary);
  text-decoration: none;
}

.nav__logo-r {
  color: var(--blue);
  text-shadow: 0 0 18px rgba(47, 128, 255, 0.65);
}

.nav__links { display: flex; gap: 32px; }

.nav__links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color 0.3s ease;
}

.nav__links a:hover { color: var(--text-primary); }

/* ---- настройки ---- */

.settings { display: flex; align-items: center; gap: 8px; }

/* кнопка темы: луна в тёмной, солнце в светлой */
#themeBtn .ico-sun { display: none; }
html[data-theme="light"] #themeBtn .ico-moon { display: none; }
html[data-theme="light"] #themeBtn .ico-sun { display: block; }

.settings__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  min-width: 36px;
  padding: 0 10px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: var(--panel);
  color: var(--text-primary);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: border-color 0.3s ease, color 0.3s ease;
}

.settings__btn:hover { border-color: rgba(90, 167, 255, 0.45); }

.settings__btn svg { width: 18px; height: 18px; }

.settings__btn[aria-pressed="false"] { color: var(--text-secondary); }

#soundBtn .ico-sound-off { display: none; }
#soundBtn[aria-pressed="false"] .ico-sound-on { display: none; }
#soundBtn[aria-pressed="false"] .ico-sound-off { display: block; }

.settings__btn--perf[aria-pressed="true"] { color: var(--blue-glow); border-color: rgba(90, 167, 255, 0.4); }

/* ============ HERO ============ */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(var(--nav-h) + 8px) var(--safe) var(--safe);
  overflow: hidden;
  isolation: isolate;
}

.bg { position: absolute; inset: 0; z-index: -1; }

.bg__grid {
  position: absolute;
  inset: -1px;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 42%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 42%, #000 30%, transparent 78%);
}

.bg__glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 42% at 50% -6%, rgba(47, 128, 255, 0.14), transparent 70%),
    radial-gradient(ellipse 45% 34% at 50% 40%, rgba(90, 167, 255, 0.05), transparent 70%);
}

.bg__noise {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  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' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

html[data-perf="lite"] .bg__noise { display: none; }

.bg__vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 120% 100% at 50% 50%, transparent 60%, rgba(0, 0, 0, 0.25) 100%);
}

html[data-theme="light"] .bg__vignette { display: none; }

.core {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 48px 24px;
}

.core__eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--blue-glow);
  margin-bottom: 24px;
}

.core__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 0.98;
  /* объём: мягкая «подошва» снизу + синий отсвет */
  filter:
    drop-shadow(0 3px 0 rgba(0, 0, 0, 0.35))
    drop-shadow(0 14px 28px rgba(0, 0, 0, 0.5))
    drop-shadow(0 0 42px rgba(47, 128, 255, 0.18));
}

html[data-theme="light"] .core__title {
  filter:
    drop-shadow(0 2px 0 rgba(11, 15, 23, 0.12))
    drop-shadow(0 12px 24px rgba(11, 15, 23, 0.18));
}

/* верхняя строка: REYRO — заполненная, «разукрашенная» внутри */
.core__title-top {
  font-size: clamp(56px, 10.5vw, 150px);
  letter-spacing: -0.03em;
  transform: scaleY(1.05);
  background: linear-gradient(180deg, var(--title-grad-a) 0%, var(--title-grad-b) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.core__title-top .blue-r {
  -webkit-text-fill-color: var(--blue);
  text-shadow: 0 0 40px rgba(47, 128, 255, 0.5);
}

/* нижняя строка: STUDIONS — прозрачная, только белый контур */
.core__title-outline {
  margin-top: 10px;
  font-size: clamp(28px, 5vw, 72px);
  letter-spacing: 0.22em;
  text-indent: 0.22em; /* компенсация трекинга для центровки */
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(245, 247, 250, 0.9);
  text-stroke: 1.5px rgba(245, 247, 250, 0.9);
}

html[data-theme="light"] .core__title-outline {
  -webkit-text-stroke: 1.5px rgba(11, 15, 23, 0.85);
  text-stroke: 1.5px rgba(11, 15, 23, 0.85);
}

.core__dynamic {
  margin-top: 20px;
  min-height: 2.6em;
  max-width: 640px;
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 1.5;
  color: var(--text-secondary);
  transition: opacity 0.6s ease, filter 0.6s ease, transform 0.6s ease;
}

.core__dynamic.is-leaving {
  opacity: 0;
  filter: blur(8px);
  transform: translateY(4px);
}

.core__cta {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* мини-факты под кнопками */
.core__stats {
  margin-top: 26px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.core__stats i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 6px rgba(90, 167, 255, 0.8);
}

.core__demo-note {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-secondary);
}

/* ============ КНОПКИ ============ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  padding: 0 32px;
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.35s ease,
              background-color 0.35s ease,
              border-color 0.35s ease;
  will-change: transform;
}

.btn--primary {
  color: #FFFFFF;
  background: linear-gradient(180deg, #3E8BFF 0%, #2F80FF 60%, #2668D9 100%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow:
    0 8px 24px rgba(47, 128, 255, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow:
    0 12px 32px rgba(47, 128, 255, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

.btn--ghost {
  color: var(--text-primary);
  background: var(--panel);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.btn--ghost:hover {
  transform: translateY(-2px);
  border-color: rgba(90, 167, 255, 0.45);
}

html[data-perf="lite"] .btn--ghost { backdrop-filter: none; -webkit-backdrop-filter: none; }

/* ============ НИЗ HERO: бренд + маскот ============ */

.hero-bottom {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: end;
  gap: 24px;
  padding: 0 8px 8px;
}

.hero-bottom__brand { display: flex; flex-direction: column; gap: 6px; }

.hero-bottom__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.22em;
}

.hero-bottom__tagline {
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

.hero-bottom__meta {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.hero-bottom__meta-sep { width: 32px; height: 1px; background: var(--glass-border); }

.mascot {
  --size: 112px;
  position: relative;
  width: var(--size);
  height: var(--size);
  justify-self: center;
  color: var(--text-primary);
}

.mascot__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(90, 167, 255, 0.22);
}

.mascot__orbit {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  animation: orbit 8s linear infinite;
}

html[data-perf="lite"] .mascot__orbit { animation: none; }

.mascot__dot {
  position: absolute;
  top: -3.5px;
  left: 50%;
  width: 7px;
  height: 7px;
  margin-left: -3.5px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 8px rgba(90, 167, 255, 0.9), 0 0 20px rgba(47, 128, 255, 0.45);
}

@keyframes orbit {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.mascot__glass {
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 32% 26%, rgba(255, 255, 255, 0.09), transparent 58%),
    var(--panel);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    inset 0 -10px 24px rgba(47, 128, 255, 0.10),
    0 12px 32px rgba(0, 0, 0, 0.45);
}

html[data-perf="lite"] .mascot__glass { backdrop-filter: none; -webkit-backdrop-filter: none; }

.mascot__glass svg { width: 58%; height: 58%; }

/* ============ ОБЩЕЕ ДЛЯ СЕКЦИЙ ============ */

.section-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--blue-glow);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 4vw, 52px);
  letter-spacing: -0.01em;
  line-height: 1.08;
}

.section-sub {
  margin-top: 16px;
  max-width: 560px;
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ============ ВИТРИНА ============ */

.level {
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px var(--safe) 80px;
}

.level__grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.holo {
  display: block;
  position: relative;
  border-radius: var(--radius-lg);
  padding: 1px;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transform-style: preserve-3d;
  transition: transform 0.25s ease;
  -webkit-tap-highlight-color: transparent;
}

.holo:focus-visible {
  outline: 2px solid rgba(90, 167, 255, 0.85);
  outline-offset: 6px;
}

.holo:hover .holo__inner,
.holo:focus-visible .holo__inner {
  border-color: rgba(90, 167, 255, 0.5);
  box-shadow: 0 22px 70px rgba(47, 128, 255, 0.16);
}

/* голографическая рамка */
.holo__frame {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: conic-gradient(from var(--holo-angle, 0deg),
    rgba(47, 128, 255, 0.0) 0%,
    rgba(47, 128, 255, 0.55) 12%,
    rgba(90, 167, 255, 0.12) 30%,
    rgba(47, 128, 255, 0.0) 55%,
    rgba(90, 167, 255, 0.45) 78%,
    rgba(47, 128, 255, 0.0) 100%);
  animation: holo-spin 7s linear infinite;
}

@property --holo-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

@keyframes holo-spin {
  to { --holo-angle: 360deg; }
}

html[data-perf="lite"] .holo__frame { animation: none; }

.holo__inner {
  position: relative;
  border-radius: calc(var(--radius-lg) - 1px);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(47, 128, 255, 0.07), transparent 60%),
    color-mix(in srgb, var(--bg) 88%, var(--panel-solid));
  border: 1px solid var(--glass-border);
  padding: 32px;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.holo__preview {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(90, 167, 255, 0.24);
  background:
    radial-gradient(ellipse at 18% 0%, rgba(90, 167, 255, 0.18), transparent 48%),
    color-mix(in srgb, var(--panel-solid) 64%, var(--bg));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 18px 48px rgba(0, 0, 0, 0.24);
  isolation: isolate;
}

.holo__preview::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 26%),
    linear-gradient(0deg, rgba(0, 0, 0, 0.22), transparent 42%);
  pointer-events: none;
  z-index: 1;
}

.holo__preview img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: top center;
  transform: scale(1.01);
  filter: saturate(0.95) contrast(1.06);
  transition: transform 0.42s ease, filter 0.42s ease;
}

.holo:hover .holo__preview img,
.holo:focus-visible .holo__preview img {
  transform: scale(1.055);
  filter: saturate(1.08) contrast(1.08);
}

html[data-theme="light"] .holo__preview {
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.74),
    0 18px 42px rgba(24, 45, 82, 0.12);
}

/* wireframe-конструктор */
.holo__wire {
  border: 1px dashed rgba(90, 167, 255, 0.28);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background-image:
    linear-gradient(rgba(90, 167, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90, 167, 255, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
}

.holo__bar {
  display: block;
  height: 10px;
  border-radius: 6px;
  background: linear-gradient(90deg, rgba(90, 167, 255, 0.35), rgba(90, 167, 255, 0.08));
}

.holo__bar--btn {
  width: 96px;
  height: 26px;
  border-radius: 13px;
  background: linear-gradient(180deg, rgba(62, 139, 255, 0.55), rgba(38, 104, 217, 0.45));
}

.holo__blocks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.holo__blocks--two { grid-template-columns: repeat(2, 1fr); }

.holo__blocks i {
  display: block;
  height: 52px;
  border-radius: 10px;
  border: 1px solid rgba(90, 167, 255, 0.22);
  background: rgba(90, 167, 255, 0.06);
}

.holo__meta { display: flex; flex-direction: column; gap: 8px; }

.holo__num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--blue-glow);
}

.holo__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
}

.holo__desc { font-size: 14px; line-height: 1.6; color: var(--text-secondary); }

.holo__status {
  margin-top: 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.holo__status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 8px rgba(90, 167, 255, 0.9);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  50% { opacity: 0.35; }
}

/* ============ КОМАНДА ============ */

.team {
  max-width: 1200px;
  margin: 0 auto;
  padding: 110px var(--safe) 90px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 64px;
  align-items: center;
}

.team__title {
  font-family: var(--font-display);
  font-size: clamp(42px, 6.8vw, 92px);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-transform: uppercase;
}

.team__copy p:not(.section-eyebrow) {
  max-width: 760px;
  margin-top: 24px;
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.72;
  color: var(--text-secondary);
}

.team__signal {
  display: inline-block;
  margin-top: 30px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--blue-glow);
  text-shadow: 0 0 24px rgba(47, 128, 255, 0.25);
}

.team__stats {
  display: grid;
  gap: 16px;
}

.team__card {
  position: relative;
  min-height: 126px;
  padding: 28px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    radial-gradient(circle at 100% 100%, rgba(47, 128, 255, 0.18), transparent 42%),
    linear-gradient(180deg, rgba(8, 11, 18, 0.96), rgba(4, 6, 11, 0.98));
  overflow: hidden;
}

.team__card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 auto;
  width: 44%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(90, 167, 255, 0.55));
}

.team__card b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1;
  color: var(--text-primary);
}

.team__card span {
  display: block;
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

html[data-theme="light"] .team__card {
  border-color: rgba(11, 15, 23, 0.1);
  background:
    radial-gradient(circle at 100% 100%, rgba(47, 128, 255, 0.13), transparent 44%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(238, 243, 250, 0.98));
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

/* ============ МАШИННОЕ ОТДЕЛЕНИЕ ============ */

.engine {
  max-width: 1320px;
  margin: 0 auto;
  padding: 100px var(--safe) 115px;
}

.engine__title {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 86px);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-transform: uppercase;
}

.engine__grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.engine__card {
  position: relative;
  min-height: 338px;
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    radial-gradient(circle at 105% 105%, rgba(47, 128, 255, 0.22), rgba(47, 128, 255, 0.06) 24%, transparent 47%),
    linear-gradient(180deg, rgba(5, 7, 13, 0.98), rgba(3, 5, 10, 0.99));
  color: var(--text-primary);
  font: inherit;
  text-align: left;
  cursor: pointer;
  appearance: none;
  overflow: hidden;
  animation: engine-drift 7.5s ease-in-out infinite;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}

.engine__card:nth-child(2) { animation-delay: -1.4s; }
.engine__card:nth-child(3) { animation-delay: -2.8s; }
.engine__card:nth-child(4) { animation-delay: -4.2s; }

.engine__card::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 46%;
  height: 46%;
  background: linear-gradient(135deg, transparent 45%, rgba(47, 128, 255, 0.18));
  opacity: 0.9;
  pointer-events: none;
}

.engine__card:hover {
  transform: translateY(-8px);
  border-color: rgba(90, 167, 255, 0.38);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.36), 0 0 22px rgba(47, 128, 255, 0.12);
}

.engine__card:active { transform: translateY(-3px) scale(0.99); }

.engine__mark {
  width: 68px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  border: 1px solid rgba(90, 167, 255, 0.28);
  background:
    linear-gradient(rgba(90, 167, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90, 167, 255, 0.07) 1px, transparent 1px),
    rgba(4, 7, 13, 0.88);
  background-size: 14px 14px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--blue-glow);
  box-shadow: inset 0 0 18px rgba(47, 128, 255, 0.08);
}

.engine__tech {
  display: block;
  margin-top: 34px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.engine__card p {
  position: relative;
  z-index: 1;
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

html[data-theme="light"] .engine__card {
  border-color: rgba(11, 15, 23, 0.1);
  background:
    radial-gradient(circle at 105% 105%, rgba(47, 128, 255, 0.16), rgba(47, 128, 255, 0.04) 26%, transparent 50%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(239, 244, 250, 0.98));
  box-shadow: 0 18px 46px rgba(15, 23, 42, 0.08);
}

html[data-theme="light"] .engine__card:hover {
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.13), 0 0 20px rgba(47, 128, 255, 0.12);
}

html[data-theme="light"] .engine__mark {
  background:
    linear-gradient(rgba(47, 128, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 128, 255, 0.08) 1px, transparent 1px),
    rgba(255, 255, 255, 0.86);
  color: var(--blue);
}

@keyframes engine-drift {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -7px; }
}

html[data-perf="lite"] .engine__card { animation: none; }

/* ============ БРИФ ============ */

.brief {
  max-width: 880px;
  margin: 0 auto;
  padding: 120px var(--safe) 140px;
}

.form {
  margin-top: 56px;
  display: flex;
  flex-direction: column;
  gap: 40px;
  position: relative;
}

.form.is-sent > .form__row,
.form.is-sent > .form__submit { display: none; }

.form__row { display: flex; flex-direction: column; gap: 18px; }

.form__row--split {
  flex-direction: row;
  gap: 32px;
}

.form__row--split .form__col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form__head { display: flex; gap: 16px; align-items: baseline; }

.form__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--blue);
  letter-spacing: 0.08em;
}

.form__label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: 0.01em;
}

.form__opt {
  margin-left: 10px;
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.form__hint {
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.form__hint--center { text-align: center; margin-top: 12px; }

.form__error {
  max-width: 360px;
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.45;
  text-align: center;
  color: #FFB4B4;
}

.form__error[hidden] { display: none; }

.form__mail {
  margin-top: 14px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.form__mail:hover { color: var(--blue-glow); border-bottom-color: var(--blue); }

/* ползунки */
.range { display: flex; flex-direction: column; gap: 12px; }

.range__row {
  display: flex;
  align-items: center;
  gap: 18px;
}

.range__row input[type="range"] { flex: 1; }

.range__field {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.range__field input {
  width: 118px;
  height: 44px;
  padding: 0 12px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: var(--input-bg);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  text-align: right;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  -moz-appearance: textfield;
  appearance: textfield;
}

.range__field input::-webkit-outer-spin-button,
.range__field input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.range__field input:focus {
  outline: none;
  border-color: rgba(90, 167, 255, 0.6);
  box-shadow: 0 0 0 3px rgba(47, 128, 255, 0.15);
}

.range__field span {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.range input[type="range"] {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--blue) var(--fill, 0%), var(--glass-border) var(--fill, 0%));
  outline: none;
  cursor: pointer;
}

.range input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--blue);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--blue), 0 0 14px rgba(47, 128, 255, 0.5);
  transition: transform 0.2s ease;
}

.range input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }

.range input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--blue);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--blue), 0 0 14px rgba(47, 128, 255, 0.5);
}

.range__value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
}

/* поля */
.input {
  width: 100%;
  height: 52px;
  padding: 0 18px;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  background: var(--input-bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.input::placeholder { color: var(--text-secondary); opacity: 0.7; }

.input:focus {
  outline: none;
  border-color: rgba(90, 167, 255, 0.6);
  box-shadow: 0 0 0 3px rgba(47, 128, 255, 0.15);
}

.input.is-error {
  border-color: #E5484D;
  box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.15);
  animation: shake 0.35s ease;
}

@keyframes shake {
  25% { transform: translateX(-5px); }
  50% { transform: translateX(5px); }
  75% { transform: translateX(-3px); }
}

.input--area {
  height: auto;
  padding: 14px 18px;
  resize: vertical;
  min-height: 90px;
  line-height: 1.5;
  font-size: 14px;
}

.form__submit {
  position: relative;
  width: min(100%, 620px);
  margin: 28px auto 0;
  padding: 34px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid rgba(90, 167, 255, 0.34);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(ellipse 82% 82% at 50% 0%, rgba(47, 128, 255, 0.22), transparent 68%),
    color-mix(in srgb, var(--panel-solid) 58%, transparent);
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.36),
    0 0 26px rgba(47, 128, 255, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.form__submit::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(90, 167, 255, 0.12), transparent);
  opacity: 0.8;
  pointer-events: none;
}

.form__submit .btn--primary {
  position: relative;
  z-index: 1;
  width: min(100%, 420px);
  height: 68px;
  font-size: 18px;
  box-shadow:
    0 18px 48px rgba(47, 128, 255, 0.48),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.form__submit .btn--primary:hover {
  box-shadow:
    0 20px 54px rgba(47, 128, 255, 0.52),
    inset 0 1px 0 rgba(255, 255, 255, 0.34);
}

html[data-theme="light"] .form__submit {
  background:
    radial-gradient(ellipse 82% 82% at 50% 0%, rgba(47, 128, 255, 0.16), transparent 68%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(238, 243, 250, 0.96));
  box-shadow:
    0 20px 54px rgba(15, 23, 42, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* успех */
.form__success[hidden] { display: none; }

.form__success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  padding: 56px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--panel);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.form__success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  background: linear-gradient(180deg, #3E8BFF, #2668D9);
  box-shadow: 0 8px 24px rgba(47, 128, 255, 0.35);
}

.form__success-icon svg { width: 30px; height: 30px; }

.form__success h3 { font-family: var(--font-display); font-size: 26px; }

.form__success p { color: var(--text-secondary); max-width: 420px; line-height: 1.6; }

/* ============ МАНИФЕСТ ============ */

.manifesto {
  max-width: 1100px;
  margin: 0 auto;
  padding: 100px var(--safe) 120px;
  text-align: center;
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  background: color-mix(in srgb, var(--bg) 88%, #000);
}

html[data-theme="light"] .manifesto {
  border-color: rgba(11, 15, 23, 0.08);
  background:
    radial-gradient(ellipse 80% 55% at 50% 0%, rgba(47, 128, 255, 0.09), transparent 62%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(244, 246, 250, 0.92));
}

.manifesto__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 4.8vw, 66px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

/* первая строка — чисто белая */
.manifesto__line { color: var(--text-primary); }

/* вторая строка — голубая, с еле заметным бликом, который проходит по тексту */
.manifesto__line--blue {
  background: linear-gradient(110deg,
    #8FC2FF 0%, #8FC2FF 38%,
    #FFFFFF 48%, #DCEBFF 50%, #FFFFFF 52%,
    #8FC2FF 62%, #8FC2FF 100%);
  background-size: 240% 100%;
  background-position: 120% 0;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: manifesto-shine 7s ease-in-out infinite;
  filter: drop-shadow(0 0 30px rgba(90, 167, 255, 0.22));
}

@keyframes manifesto-shine {
  0%, 20% { background-position: 120% 0; }
  60%, 100% { background-position: -120% 0; }
}

html[data-theme="light"] .manifesto__line--blue {
  background: linear-gradient(110deg,
    #1E6FE8 0%, #1E6FE8 38%,
    #5AA7FF 48%, #FFFFFF 50%, #5AA7FF 52%,
    #1E6FE8 62%, #1E6FE8 100%);
  background-size: 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 10px 22px rgba(47, 128, 255, 0.12));
}

html[data-perf="lite"] .manifesto__line--blue { animation: none; }

.manifesto__sub {
  margin-top: 28px;
  font-size: clamp(15px, 1.4vw, 19px);
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ============ CTA-БАННЕР ============ */

.cta-banner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--safe) 40px;
}

.cta-banner__inner {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
  padding: 72px 32px 56px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  /* сильно чёрный — темнее фона страницы */
  background:
    radial-gradient(ellipse 70% 55% at 50% -10%, rgba(47, 128, 255, 0.12), transparent 65%),
    #020409;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 24px 60px rgba(0, 0, 0, 0.55);
}

html[data-theme="light"] .cta-banner__inner {
  background:
    radial-gradient(ellipse 70% 55% at 50% -10%, rgba(47, 128, 255, 0.12), transparent 65%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(238, 243, 250, 0.98));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.86),
    0 20px 52px rgba(15, 23, 42, 0.1);
}

/* заголовок-«прожектор» */
.cta-banner__eyebrow {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: #5AA7FF;
  text-shadow:
    0 0 14px rgba(90, 167, 255, 0.95),
    0 0 38px rgba(47, 128, 255, 0.55),
    0 0 80px rgba(47, 128, 255, 0.3);
}

.cta-banner__text {
  max-width: 560px;
  font-size: 14px;
  line-height: 1.65;
  color: #F5F7FA;
}

html[data-theme="light"] .cta-banner__text { color: var(--text-secondary); }

.cta-banner__inner .btn { margin-top: 10px; text-transform: uppercase; letter-spacing: 0.06em; font-size: 15px; }

.cta-banner__mail {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.cta-banner__mail:hover { color: var(--blue-glow); border-bottom-color: var(--blue); }

/* ============ МЕТОДОЛОГИЯ: ПРОЦЕСС ПРОИЗВОДСТВА ============ */

.process {
  max-width: 1200px;
  margin: 0 auto;
  padding: 110px var(--safe);
}

.process .section-title { text-transform: uppercase; }

.process__orbs {
  margin-top: 56px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px;
}

.process__orb {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 10px;
  border: 1px solid var(--glass-border);
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.06), transparent 58%),
    var(--panel);
  color: var(--text-secondary);
  cursor: pointer;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.3s ease,
              color 0.3s ease,
              box-shadow 0.3s ease;
}

.process__orb b {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--blue-glow);
}

.process__orb span {
  font-family: var(--font-display);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-align: center;
  text-transform: uppercase;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.process__orb:hover {
  transform: translateY(-4px);
  border-color: rgba(90, 167, 255, 0.5);
  color: var(--text-primary);
}

.process__orb:hover span {
  transform: scale(0.9);
  opacity: 0.82;
}

.process__orb.is-active {
  transform: scale(1.14);
  border-color: var(--blue);
  color: var(--text-primary);
  box-shadow:
    0 0 26px rgba(47, 128, 255, 0.4),
    inset 0 0 20px rgba(47, 128, 255, 0.14);
}

/* 6 шаров прогресса этапов */
.process__bar {
  margin: 44px auto 0;
  max-width: 520px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  --progress: 0%;
}

.process__bar::before,
.process__bar::after {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
  border-radius: 1px;
}

.process__bar::before {
  background: rgba(156, 163, 175, 0.35);
}

.process__bar::after {
  width: var(--progress);
  right: auto;
  background: linear-gradient(90deg, #5AA7FF, #2F80FF);
  box-shadow: 0 0 10px rgba(47, 128, 255, 0.5);
  transition: width 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.process__bar span {
  position: relative;
  z-index: 1;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--text-secondary);
  background: var(--bg);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              background-color 0.4s ease,
              border-color 0.4s ease,
              box-shadow 0.4s ease;
}

.process__bar span.is-filled {
  background: var(--blue);
  border-color: var(--blue);
  box-shadow: 0 0 10px rgba(47, 128, 255, 0.75);
}

.process__bar span.is-active {
  transform: scale(1.55);
  box-shadow: 0 0 14px rgba(47, 128, 255, 0.9);
}

/* сменяемая панель этапа */
.process__panel {
  margin: 36px auto 0;
  max-width: 860px;
  min-height: 188px;
  padding: 40px 44px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--panel);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transition: opacity 0.35s ease, filter 0.35s ease, transform 0.35s ease;
}

html[data-perf="lite"] .process__panel { backdrop-filter: none; -webkit-backdrop-filter: none; }

.process__panel.is-leaving {
  opacity: 0.62;
  filter: blur(3px);
  transform: translateY(5px);
}

.process__panel h3 {
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.process__panel h3 b { color: var(--blue); margin-right: 10px; }

.process__panel p {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ============ ФУТЕР ============ */

.footer {
  border-top: 1px solid var(--glass-border);
  background: color-mix(in srgb, var(--bg) 80%, #000);
  padding: 72px var(--safe) 32px;
}

html[data-theme="light"] .footer { background: color-mix(in srgb, var(--bg) 92%, #000); }

.footer__top {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
}

.footer__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 44px;
  letter-spacing: 0.18em;
}

.footer__tagline {
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 14px;
  letter-spacing: 0.03em;
}

.footer__desc {
  margin-top: 20px;
  max-width: 380px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.footer__legal {
  margin-top: 16px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  opacity: 0.65;
}

.footer__col-title {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 18px;
}

.footer__nav, .footer__contacts { display: flex; flex-direction: column; }

.footer__nav a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 15px;
  padding: 7px 0;
  width: fit-content;
  transition: color 0.25s ease;
}

.footer__nav a:hover { color: var(--blue-glow); }

.footer__tg-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--text-primary);
  text-decoration: none;
  width: fit-content;
  padding: 7px 0;
  border-bottom: 1px solid var(--glass-border);
  transition: color 0.25s ease, border-color 0.25s ease;
}

.footer__tg-link:hover {
  color: var(--blue-glow);
  border-bottom-color: var(--blue);
}

.footer__mail {
  margin-top: 14px;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  text-decoration: none;
  width: fit-content;
  transition: color 0.25s ease;
}

.footer__mail:hover { color: var(--blue-glow); }

/* ============ ПОЛЗУНОК ПРОГРЕССА СКРОЛЛА ============ */

.scroll-rail {
  position: fixed;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: min(56vh, 520px);
  border-radius: 1px;
  background: var(--glass-border);
  z-index: 40;
}

.scroll-rail__thumb {
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 0;
  transform: translateX(-50%);
  border-radius: 1px;
  background: linear-gradient(180deg, #5AA7FF, #2F80FF);
  box-shadow: 0 0 10px rgba(47, 128, 255, 0.65);
  transition: height 0.15s ease-out;
}

/* станции-кружочки по секциям */
.scroll-rail__dot {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--text-secondary);
  background: var(--bg);
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
              background-color 0.3s ease,
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}

.scroll-rail__dot:hover {
  border-color: var(--blue-glow);
  transform: translate(-50%, -50%) scale(1.3);
}

.scroll-rail__dot.is-passed {
  background: var(--blue);
  border-color: var(--blue);
  box-shadow: 0 0 8px rgba(47, 128, 255, 0.55);
}

/* дошёл до станции — шарик стал чуть больше и синим */
.scroll-rail__dot.is-active {
  transform: translate(-50%, -50%) scale(1.78);
  background: var(--blue);
  border-color: var(--blue);
  box-shadow: 0 0 10px rgba(47, 128, 255, 0.75);
}

/* подпись станции при наведении: «01 // НАЗВАНИЕ» */
.scroll-rail__dot::after {
  content: attr(data-label);
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%) translateX(-6px);
  white-space: normal;
  width: max-content;
  max-width: 150px;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.12em;
  color: var(--text-primary);
  background: var(--panel);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 5px 12px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.scroll-rail__dot:hover::after {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

.scroll-rail__caption {
  position: absolute;
  top: calc(100% + 12px);
  left: -2px;
  width: 58px;
  font-family: var(--font-display);
  font-size: 8px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.12em;
  writing-mode: horizontal-tb;
  text-align: left;
  text-transform: uppercase;
  color: rgba(156, 163, 175, 0.72);
}

/* ============ TELEGRAM FAB ============ */

.tg-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 45;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  background: linear-gradient(180deg, #3E8BFF, #2668D9);
  box-shadow: 0 10px 28px rgba(47, 128, 255, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  transition: opacity 0.4s ease, visibility 0.4s ease, transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s ease;
}

.tg-fab svg { width: 26px; height: 26px; }

.tg-fab.is-visible { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }

.tg-fab:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 14px 36px rgba(47, 128, 255, 0.55); }

/* ============ REDUCED MOTION ============ */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .mascot__orbit, .holo__frame, .holo__status i, .manifesto__title, .engine__card { animation: none; }
  .core__dynamic { transition: opacity 0.3s ease; }
  .btn, .tg-fab { transition: none; }
  .loader__text span { animation-duration: 0.01s; animation-delay: 0s; }
}

/* ============ MOBILE ============ */

@media (max-width: 900px) {
  .level__grid { grid-template-columns: 1fr; }
  .team { grid-template-columns: 1fr; gap: 42px; }
  .team__stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .engine__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__top { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 720px) {
  .nav__links { display: none; }

  .core { padding: 24px 0; }

  .core__title-top { font-size: clamp(48px, 15vw, 64px); }

  .core__title-outline { font-size: clamp(22px, 7vw, 32px); }

  .core__cta { width: 100%; }

  .btn { width: 100%; max-width: 360px; }

  .form .btn { width: auto; }

  .hero-bottom {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: 20px;
  }

  .hero-bottom__brand { align-items: center; }
  .hero-bottom__meta { justify-self: center; }

  .mascot { --size: 96px; }

  .level, .team, .engine, .brief { padding-top: 88px; padding-bottom: 88px; }

  .manifesto { padding: 88px var(--safe); }

  .process { padding: 88px var(--safe); }

  .process__orb { width: 104px; height: 104px; }

  .process__orb b { font-size: 16px; }

  .process__orb span { font-size: 9px; }

  .process__panel { padding: 28px 24px; }

  .team__stats,
  .engine__grid {
    grid-template-columns: 1fr;
  }

  .engine__card {
    min-height: 270px;
  }

  .cta-banner__inner { padding: 56px 20px 44px; }

  .form__row--split { flex-direction: column; }

  .scroll-rail { height: 40vh; left: 8px; }

  .tg-fab { right: 16px; bottom: 16px; width: 50px; height: 50px; }

  .settings__btn--perf span { display: none; }
}