/* ==========================================================================
   НАКРУТИМ ПФ · DARK VOID · IMMERSIVE
   Design tokens inspired by DESIGN.md (Dala style)
   ========================================================================== */

/* ---------- 1. TOKENS ---------- */
:root {
  /* Colors */
  --color-void:           #000000;
  --color-void-soft:      #07070a;
  --color-void-2:         #0b0b10;
  --color-bone-white:     #ffffff;
  --color-ash-gray:       #9a9a9a;
  --color-silver-mist:    #bdbdbd;
  --color-electric-iris:  #8052ff;
  --color-electric-iris-2:#6b3dff;
  --color-saffron-spark:  #ffb829;
  --color-deep-verdant:   #15846e;
  --color-magenta:        #ff5ea8;
  --color-cyan:           #59e5ff;

  /* Surfaces */
  --surface-0: #000000;
  --surface-1: #0a0a0f;
  --surface-2: #15151c;

  /* Borders / dividers (very subtle) */
  --line: rgba(255,255,255,.06);
  --line-strong: rgba(255,255,255,.12);

  /* Typography */
  --font-display: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-body:    'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Weights */
  --w-extralight: 200;
  --w-light:      300;
  --w-regular:    400;
  --w-medium:     500;
  --w-semibold:   600;
  --w-bold:       700;

  /* Type scale */
  --text-caption:    12px;
  --text-nav:        14px;
  --text-body:       16px;
  --text-body-lg:    18px;
  --text-lead:       20px;
  --text-h6:         22px;
  --text-h5:         27px;
  --text-h4:         36px;
  --text-h3:         48px;
  --text-h2:         64px;
  --text-h1:         88px;
  --text-display:    120px;

  /* Line heights */
  --lh-tight: 1.05;
  --lh-snug:  1.15;
  --lh-base:  1.5;
  --lh-loose: 1.7;

  /* Tracking */
  --track-display: -0.04em;
  --track-h:       -0.02em;
  --track-eyebrow: 0.18em;

  /* Spacing scale (4-px grid for flexibility) */
  --s-1:  4px;
  --s-2:  8px;
  --s-3:  12px;
  --s-4:  16px;
  --s-5:  24px;
  --s-6:  32px;
  --s-7:  48px;
  --s-8:  64px;
  --s-9:  96px;
  --s-10: 128px;
  --s-11: 160px;

  /* Radii */
  --r-sm: 8px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-pill: 999px;

  /* Layout */
  --container-max: 1280px;
  --container-pad: clamp(20px, 4vw, 48px);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --d-fast: 180ms;
  --d-base: 320ms;
  --d-slow: 600ms;

  /* z-index scale */
  --z-bg: 0;
  --z-base: 1;
  --z-nav: 50;
  --z-menu: 60;
  --z-modal: 100;
}

/* ---------- 2. RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: var(--w-regular);
  font-size: var(--text-body);
  line-height: var(--lh-base);
  color: var(--color-bone-white);
  background: var(--color-void);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100dvh;
  position: relative;
  isolation: isolate;
  letter-spacing: -0.005em;
}

body.is-loading { opacity: 0; }
body.is-loaded  { opacity: 1; transition: opacity 480ms var(--ease-out); }

/* Selection */
::selection { background: var(--color-electric-iris); color: #fff; }

/* Scroll bar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: rgba(128,82,255,.4); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(128,82,255,.7); }

/* Focus visibility (a11y) */
:focus-visible {
  outline: 2px solid var(--color-electric-iris);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

img, svg, canvas { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

button {
  font: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--w-regular);
  letter-spacing: var(--track-h);
  line-height: var(--lh-tight);
  color: var(--color-bone-white);
}

p { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

/* ---------- 3. LAYOUT PRIMITIVES ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-inline: var(--container-pad);
  position: relative;
  z-index: var(--z-base);
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 8px;
  background: var(--color-electric-iris);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--r-sm);
  z-index: var(--z-modal);
  transition: top var(--d-fast);
}
.skip-link:focus { top: 8px; }

/* ---------- 4. AMBIENT LAYERS ---------- */
#particles-bg {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100dvh;
  z-index: var(--z-bg);
  pointer-events: none;
  opacity: .55;
}

.grid-veil {
  position: fixed;
  inset: 0;
  z-index: var(--z-bg);
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(128,82,255,.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(128,82,255,.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(circle at 50% 30%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 30%, transparent 80%);
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: var(--z-bg);
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 80% 20%, rgba(128,82,255,.18), transparent 60%),
    radial-gradient(ellipse 60% 80% at 10% 90%, rgba(21,132,110,.18), transparent 60%);
  mix-blend-mode: screen;
}

/* ---------- 5. NAV ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: var(--s-4) 0;
  transition: background var(--d-base), backdrop-filter var(--d-base), padding var(--d-base), border-color var(--d-base);
  border-bottom: 1px solid transparent;
}
.nav[data-state="scrolled"] {
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line);
  padding: var(--s-3) 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  max-width: var(--container-max);
  margin: 0 auto;
  padding-inline: var(--container-pad);
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-weight: var(--w-semibold);
  letter-spacing: -0.01em;
  font-size: var(--text-nav);
  text-transform: uppercase;
  color: var(--color-bone-white);
}
.nav__logo-mark { width: 28px; height: 28px; flex-shrink: 0; }
.nav__logo-text em {
  font-style: normal;
  color: var(--color-electric-iris);
  font-weight: var(--w-regular);
}

.nav__menu {
  display: flex;
  gap: clamp(var(--s-3), 2vw, var(--s-7));
  align-items: center;
}
.nav__menu a {
  position: relative;
  font-size: var(--text-nav);
  font-weight: var(--w-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ash-gray);
  padding: var(--s-2) 0;
  transition: color var(--d-fast);
}
.nav__menu a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--color-bone-white);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--d-base) var(--ease-out);
}
.nav__menu a:hover, .nav__menu a:focus-visible { color: var(--color-bone-white); }
.nav__menu a:hover::after, .nav__menu a:focus-visible::after { transform: scaleX(1); }

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--s-3);
}
.nav__phone {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--text-nav);
  font-weight: var(--w-medium);
  color: var(--color-bone-white);
  padding: var(--s-3) var(--s-4);
  border-radius: var(--r-pill);
  transition: background var(--d-fast);
}
.nav__phone:hover { background: rgba(255,255,255,.06); }

.nav__burger {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-strong);
  transition: background var(--d-fast);
}
.nav__burger span {
  display: block;
  height: 1.5px;
  background: var(--color-bone-white);
  border-radius: 2px;
  transition: transform var(--d-base), opacity var(--d-fast);
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- 6. BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: 14px 22px;
  border-radius: var(--r-lg);
  font-size: var(--text-nav);
  font-weight: var(--w-semibold);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    transform var(--d-base) var(--ease-out),
    background var(--d-base),
    color var(--d-base),
    border-color var(--d-base),
    box-shadow var(--d-base);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  user-select: none;
  white-space: nowrap;
  min-height: 44px;
}
.btn--lg { padding: 18px 28px; font-size: var(--text-body); }
.btn svg { transition: transform var(--d-base); }
.btn:hover svg { transform: translateX(2px); }

.btn--primary {
  background: var(--color-electric-iris);
  color: var(--color-bone-white);
  box-shadow:
    0 0 0 1px rgba(255,255,255,.08) inset,
    0 10px 40px -10px rgba(128,82,255,.7);
}
.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(120px circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,.4), transparent 60%);
  opacity: 0;
  transition: opacity var(--d-base);
  z-index: -1;
}
.btn--primary:hover {
  background: var(--color-electric-iris-2);
  transform: translateY(-2px);
  box-shadow:
    0 0 0 1px rgba(255,255,255,.12) inset,
    0 20px 50px -10px rgba(128,82,255,.9);
}
.btn--primary:hover::before { opacity: 1; }
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--color-bone-white);
  border: 1px solid var(--line-strong);
}
.btn--ghost:hover {
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.3);
  transform: translateY(-1px);
}

.nav__cta { padding: 12px 18px; font-size: 13px; }

/* ---------- 7. MOBILE MENU ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  background: rgba(0,0,0,.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--d-base);
  display: flex;
  align-items: center;
  justify-content: center;
}
.mobile-menu.is-open { opacity: 1; pointer-events: auto; }

.mobile-menu__inner {
  width: min(560px, 92vw);
  display: flex;
  flex-direction: column;
  gap: var(--s-8);
  align-items: stretch;
  padding: 80px var(--s-7) var(--s-7);
  transform: translateY(20px);
  transition: transform var(--d-base) var(--ease-out);
}
.mobile-menu.is-open .mobile-menu__inner { transform: translateY(0); }

.mobile-menu nav { display: flex; flex-direction: column; gap: var(--s-3); }
.mobile-menu nav a {
  display: block;
  font-size: var(--text-h4);
  font-weight: var(--w-regular);
  letter-spacing: -0.02em;
  line-height: 1;
  padding: var(--s-3) 0;
  color: var(--color-bone-white);
  border-bottom: 1px solid var(--line);
  transition: color var(--d-fast), padding-left var(--d-base);
}
.mobile-menu nav a:hover { color: var(--color-electric-iris); padding-left: var(--s-3); }

.mobile-menu__phone {
  font-size: var(--text-h5);
  font-weight: var(--w-regular);
  color: var(--color-bone-white);
  letter-spacing: -0.02em;
}
.mobile-menu__cta { width: 100%; }

/* ---------- 8. HERO ---------- */
.hero {
  position: relative;
  padding-top: clamp(120px, 16vh, 200px);
  padding-bottom: var(--s-10);
  overflow: hidden;
}

.hero__container {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(var(--s-7), 6vw, var(--s-10));
  align-items: center;
}

.hero__copy { display: flex; flex-direction: column; gap: var(--s-6); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: var(--w-semibold);
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--color-silver-mist);
}
.eyebrow--accent { color: var(--color-saffron-spark); }
.eyebrow__dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px color-mix(in srgb, currentColor 22%, transparent);
  animation: pulse 2.2s var(--ease-in-out) infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(.6); opacity: .55; }
}

.hero__title {
  font-size: clamp(40px, 7.2vw, var(--text-h1));
  font-weight: var(--w-regular);
  line-height: 1;
  letter-spacing: var(--track-display);
  color: var(--color-bone-white);
  margin: 0;
}
.hero__title-grad {
  background: linear-gradient(110deg, #ffffff 30%, #8052ff 60%, #ffb829 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.hero__lead {
  font-size: clamp(16px, 1.4vw, var(--text-body-lg));
  line-height: var(--lh-loose);
  color: var(--color-silver-mist);
  max-width: 56ch;
  font-weight: var(--w-light);
}
.hero__lead strong { color: var(--color-bone-white); font-weight: var(--w-medium); }

.hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
}

.hero__pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3) var(--s-6);
  padding-top: var(--s-4);
  border-top: 1px solid var(--line);
}
.hero__pills li {
  font-size: var(--text-body);
  color: var(--color-silver-mist);
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}
.hero__pills li span {
  font-size: var(--text-h5);
  color: var(--color-bone-white);
  font-weight: var(--w-medium);
  letter-spacing: -0.02em;
}

/* Hero visual */
.hero__visual {
  position: relative;
  aspect-ratio: 1 / 1;
  min-height: 380px;
}
.hero__constellation {
  position: absolute;
  inset: 4%;
  border-radius: 50%;
  overflow: hidden;
}
.hero__constellation canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

.hero__ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  pointer-events: none;
}
.hero__ring--1 { inset: 0;     animation: ring-rotate 28s linear infinite; }
.hero__ring--2 {
  inset: -8%;
  border-style: dashed;
  border-color: rgba(128,82,255,.25);
  animation: ring-rotate 60s linear infinite reverse;
}
@keyframes ring-rotate { to { transform: rotate(360deg); } }

.hero__badge {
  position: absolute;
  bottom: 4%;
  right: -4%;
  display: inline-flex;
  flex-direction: column;
  padding: var(--s-4) var(--s-5);
  border-radius: var(--r-lg);
  background: rgba(8,8,12,.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line-strong);
  box-shadow: 0 14px 50px -10px rgba(128,82,255,.4);
  max-width: 240px;
}
.hero__badge-num {
  font-size: var(--text-h4);
  font-weight: var(--w-medium);
  letter-spacing: -0.02em;
  color: var(--color-electric-iris);
  line-height: 1;
}
.hero__badge-num sub { font-size: 0.5em; color: var(--color-silver-mist); }
.hero__badge-lbl {
  font-size: 13px;
  font-weight: var(--w-light);
  line-height: 1.3;
  color: var(--color-silver-mist);
  margin-top: var(--s-2);
}

/* marquee */
.marquee {
  margin-top: var(--s-10);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  white-space: nowrap;
  padding: var(--s-3) 0;
}
.marquee__track {
  display: inline-flex;
  gap: var(--s-7);
  font-size: clamp(14px, 1.4vw, var(--text-body-lg));
  font-weight: var(--w-regular);
  letter-spacing: -0.01em;
  color: var(--color-silver-mist);
  animation: marquee 28s linear infinite;
}
.marquee__track span:nth-child(odd) { color: var(--color-bone-white); }
.marquee__track span:nth-child(even) { color: var(--color-electric-iris); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 9. METRICS ---------- */
.metrics {
  padding: var(--s-8) 0;
  border-block: 1px solid var(--line);
  position: relative;
}
.metrics__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: var(--s-5);
}
.metrics__cell {
  padding: var(--s-5);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(255,255,255,.025), rgba(255,255,255,.005));
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  transition: border-color var(--d-base), transform var(--d-base);
}
.metrics__cell::before {
  content: '';
  position: absolute;
  top: -2px; left: -2px; right: -2px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-electric-iris), transparent);
  opacity: 0;
  transition: opacity var(--d-base);
}
.metrics__cell:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.metrics__cell:hover::before { opacity: 1; }
.metrics__num {
  font-size: clamp(28px, 3vw, var(--text-h4));
  font-weight: var(--w-medium);
  letter-spacing: -0.025em;
  color: var(--color-bone-white);
  line-height: 1;
  background: linear-gradient(110deg, #fff 50%, #8052ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.metrics__lbl {
  font-size: 14px;
  color: var(--color-silver-mist);
  font-weight: var(--w-light);
  line-height: 1.4;
  margin-top: var(--s-3);
}

/* ---------- 10. SECTION DEFAULTS ---------- */
.section {
  padding: clamp(var(--s-9), 12vw, var(--s-11)) 0;
  position: relative;
}
.section + .section { padding-top: clamp(var(--s-8), 8vw, var(--s-10)); }

.section__head {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  margin-bottom: var(--s-10);
  max-width: 880px;
}
.section__title {
  font-size: clamp(34px, 5.4vw, var(--text-h2));
  font-weight: var(--w-regular);
  letter-spacing: var(--track-display);
  line-height: 1.05;
}
.section__title-grad {
  background: linear-gradient(120deg, #8052ff 30%, #ffb829 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section__sub {
  font-size: var(--text-body-lg);
  font-weight: var(--w-light);
  color: var(--color-silver-mist);
  max-width: 64ch;
}

/* ---------- 11. CASES ---------- */
.section--cases { color: var(--color-bone-white); }
.cases {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: var(--s-5);
}
.case {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  padding: var(--s-7);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(255,255,255,.025), rgba(255,255,255,.005));
  border: 1px solid var(--line);
  transition: border-color var(--d-base), transform var(--d-base);
  overflow: hidden;
  isolation: isolate;
}
.case::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(160deg, rgba(128,82,255,.45), transparent 40%, rgba(255,184,41,.25));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--d-base);
  pointer-events: none;
  z-index: -1;
}
.case:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.case:hover::after { opacity: 1; }

.case__tag {
  position: absolute;
  top: var(--s-5);
  right: var(--s-5);
  font-size: 11px;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--color-electric-iris);
  font-weight: var(--w-semibold);
}

.case__title {
  font-size: clamp(22px, 2.4vw, var(--text-h5));
  font-weight: var(--w-medium);
  letter-spacing: -0.02em;
  padding-right: 80px;
}
.case__text {
  font-size: var(--text-body);
  line-height: var(--lh-loose);
  color: var(--color-silver-mist);
  font-weight: var(--w-light);
}
.case__text strong { color: var(--color-bone-white); font-weight: var(--w-medium); }

.case__numbers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
  margin-block: var(--s-2) var(--s-3);
  padding-block: var(--s-4);
  border-block: 1px solid var(--line);
}
.case__numbers div { display: flex; flex-direction: column; gap: 2px; }
.case__numbers dt {
  font-size: 11px;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--color-ash-gray);
  font-weight: var(--w-semibold);
}
.case__numbers dd {
  margin: 0;
  font-size: var(--text-h5);
  font-weight: var(--w-medium);
  color: var(--color-bone-white);
  letter-spacing: -0.02em;
}
.case__cta { align-self: start; margin-top: auto; }

/* ---------- 12. ADVANTAGES ---------- */
.section--advantages { position: relative; }
.advantages {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: clamp(var(--s-3), 1vw, var(--s-5));
  counter-reset: adv;
}
.advantage {
  position: relative;
  padding: var(--s-7) var(--s-5);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.02), transparent);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  overflow: hidden;
  transition: transform var(--d-base), border-color var(--d-base), background var(--d-base);
}
.advantage::before {
  content: '';
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(128,82,255,.18), transparent 70%);
  top: -120px;
  right: -120px;
  opacity: 0;
  transition: opacity var(--d-base);
  pointer-events: none;
}
.advantage:hover { transform: translateY(-3px); border-color: rgba(128,82,255,.35); }
.advantage:hover::before { opacity: 1; }

.advantage__index {
  font-size: 11px;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--color-electric-iris);
  font-weight: var(--w-semibold);
}
.advantage__title {
  font-size: clamp(20px, 1.8vw, var(--text-h5));
  font-weight: var(--w-medium);
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-bone-white);
}
.advantage__text {
  font-size: 15px;
  color: var(--color-silver-mist);
  line-height: var(--lh-base);
  font-weight: var(--w-light);
}

/* ---------- 13. PRICING ---------- */
.pricing-tabs {
  position: relative;
  display: inline-flex;
  padding: 6px;
  margin-bottom: var(--s-8);
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.02);
}
.pricing-tab {
  position: relative;
  z-index: 2;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: var(--w-semibold);
  letter-spacing: 0.04em;
  color: var(--color-ash-gray);
  border-radius: var(--r-pill);
  transition: color var(--d-base);
  min-height: 44px;
}
.pricing-tab.is-active { color: var(--color-bone-white); }
.pricing-tabs__indicator {
  position: absolute;
  z-index: 1;
  top: 6px;
  bottom: 6px;
  border-radius: var(--r-pill);
  background: var(--color-electric-iris);
  transition: left var(--d-base) var(--ease-out), width var(--d-base) var(--ease-out);
  box-shadow: 0 8px 24px -4px rgba(128,82,255,.6);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: var(--s-4);
}
.pricing-grid.is-hidden { display: none; }

.plan {
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
  padding: var(--s-7);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,0));
  transition: border-color var(--d-base), transform var(--d-base);
}
.plan:hover { border-color: rgba(128,82,255,.35); transform: translateY(-3px); }

.plan--featured {
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(128,82,255,.18), transparent 50%),
    linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  border-color: rgba(128,82,255,.5);
  box-shadow: 0 0 0 1px rgba(128,82,255,.18), 0 30px 80px -20px rgba(128,82,255,.4);
  transform: translateY(-8px);
}
.plan--featured:hover { transform: translateY(-12px); }

.plan__head { display: flex; flex-direction: column; gap: var(--s-2); }
.plan__name { font-size: var(--text-h5); font-weight: var(--w-medium); letter-spacing: -0.02em; }
.plan__desc { font-size: 14px; color: var(--color-silver-mist); font-weight: var(--w-light); }
.plan__badges { height: 22px; }
.plan__badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  background: var(--color-saffron-spark);
  color: #1a1300;
  border-radius: var(--r-pill);
  font-weight: var(--w-bold);
}

.plan__price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px;
  padding-block: var(--s-2);
  border-block: 1px solid var(--line);
}
.plan__price-from { font-size: 14px; color: var(--color-silver-mist); }
.plan__price-num {
  font-size: clamp(36px, 4.4vw, var(--text-h3));
  font-weight: var(--w-medium);
  letter-spacing: -0.04em;
  color: var(--color-bone-white);
  font-feature-settings: "tnum" 1;
  line-height: 1;
}
.plan__price-num--sm { font-size: clamp(28px, 3.2vw, 56px); }
.plan__price-plus { color: var(--color-electric-iris); }
.plan__price-period { font-size: 14px; color: var(--color-silver-mist); }

.plan__feats {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  margin: 0;
}
.plan__feats li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--color-silver-mist);
  line-height: 1.5;
}
.plan__feats li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-electric-iris);
  box-shadow: 0 0 0 3px color-mix(in srgb, #8052ff 22%, transparent);
}
.plan__feats li strong { color: var(--color-bone-white); font-weight: var(--w-medium); }

.plan .btn { width: 100%; }
.plan--featured .btn { background: var(--color-electric-iris); }

.pricing__note {
  margin-top: var(--s-7);
  padding: var(--s-5);
  background: rgba(255,255,255,.025);
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  font-size: 14px;
  color: var(--color-silver-mist);
  line-height: 1.6;
  max-width: 920px;
}
.pricing__note strong { color: var(--color-bone-white); font-weight: var(--w-medium); }

/* ---------- 14. STAGES ---------- */
.stages {
  display: grid;
  grid-template-columns: repeat(6, minmax(0,1fr));
  gap: 1px;
  background: var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.stage {
  position: relative;
  padding: var(--s-7) var(--s-5);
  background: var(--surface-1);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  transition: background var(--d-base);
}
.stage:hover { background: var(--surface-2); }

.stage__num span {
  display: inline-block;
  font-size: clamp(40px, 4vw, var(--text-h3));
  font-weight: var(--w-regular);
  letter-spacing: -0.04em;
  background: linear-gradient(180deg, var(--color-electric-iris), transparent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.stage__title { font-size: 18px; font-weight: var(--w-medium); letter-spacing: -0.01em; }
.stage__text { font-size: 14px; color: var(--color-silver-mist); font-weight: var(--w-light); line-height: 1.55; }

/* ---------- 15. MANIFESTO ---------- */
.manifesto {
  display: grid;
  grid-template-columns: minmax(0,1.1fr) minmax(0,1fr);
  gap: clamp(var(--s-7), 6vw, var(--s-10));
  align-items: start;
}
.manifesto__col { display: flex; flex-direction: column; gap: var(--s-5); }
.manifesto__title {
  font-size: clamp(30px, 4.2vw, var(--text-h3));
  font-weight: var(--w-regular);
  letter-spacing: var(--track-h);
  line-height: 1.1;
}
.manifesto__lead {
  font-size: var(--text-lead);
  line-height: 1.5;
  color: var(--color-bone-white);
  font-weight: var(--w-light);
}
.manifesto__col p { color: var(--color-silver-mist); line-height: var(--lh-loose); font-weight: var(--w-light); }

.manifesto__group {
  padding: var(--s-6);
  border-radius: var(--r-lg);
  background: rgba(255,255,255,.025);
  border: 1px solid var(--line);
  transition: border-color var(--d-base);
}
.manifesto__group:hover { border-color: var(--line-strong); }
.manifesto__group h4 {
  font-size: 13px;
  font-weight: var(--w-semibold);
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--color-saffron-spark);
  margin-bottom: var(--s-4);
}
.manifesto__group ul { display: flex; flex-direction: column; gap: var(--s-2); }
.manifesto__group li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  color: var(--color-bone-white);
  font-weight: var(--w-regular);
  line-height: 1.5;
}
.manifesto__group li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 11px;
  width: 6px;
  height: 6px;
  background: var(--color-electric-iris);
  border-radius: 1px;
  transform: rotate(45deg);
}

/* ---------- 16. FAQ ---------- */
.faq {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  max-width: 920px;
  margin-inline: auto;
}
.faq__item {
  border-radius: var(--r-lg);
  background: rgba(255,255,255,.025);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color var(--d-base), background var(--d-base);
}
.faq__item[open] {
  border-color: rgba(128,82,255,.35);
  background: linear-gradient(160deg, rgba(128,82,255,.08), rgba(255,255,255,.02));
}
.faq__item summary {
  list-style: none;
  cursor: pointer;
  padding: var(--s-5) var(--s-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  font-size: clamp(16px, 1.4vw, var(--text-body-lg));
  font-weight: var(--w-medium);
  letter-spacing: -0.01em;
  color: var(--color-bone-white);
}
.faq__item summary::-webkit-details-marker { display: none; }

.faq__icon {
  width: 24px; height: 24px;
  flex-shrink: 0;
  position: relative;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  transition: transform var(--d-base), background var(--d-base), border-color var(--d-base);
}
.faq__icon::before, .faq__icon::after {
  content: '';
  position: absolute;
  background: var(--color-bone-white);
  border-radius: 1px;
  transition: transform var(--d-base);
}
.faq__icon::before { left: 6px; right: 6px; top: 11px; height: 2px; }
.faq__icon::after  { top: 6px; bottom: 6px; left: 11px; width: 2px; }
.faq__item[open] .faq__icon { background: var(--color-electric-iris); border-color: var(--color-electric-iris); }
.faq__item[open] .faq__icon::after { transform: scaleY(0); }
.faq__item[open] .faq__icon::before { background: #fff; }

.faq__body {
  padding: 0 var(--s-6) var(--s-6) var(--s-6);
  font-size: var(--text-body);
  color: var(--color-silver-mist);
  line-height: var(--lh-loose);
  font-weight: var(--w-light);
}
.faq__body ul {
  margin-top: var(--s-2);
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.faq__body li {
  padding-left: 22px;
  position: relative;
  color: var(--color-silver-mist);
  font-weight: var(--w-light);
}
.faq__body li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-electric-iris);
}

/* ---------- 17. CTA ---------- */
.section--cta { padding: var(--s-9) 0 var(--s-10); }
.cta {
  position: relative;
  border-radius: var(--r-xl);
  background: linear-gradient(135deg, rgba(128,82,255,.12), rgba(255,184,41,.06));
  border: 1px solid var(--line-strong);
  overflow: hidden;
  isolation: isolate;
  padding: clamp(var(--s-7), 6vw, var(--s-9));
}
.cta__bg { position: absolute; inset: 0; pointer-events: none; }
.cta__bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}
.cta__bg-orb--1 {
  width: 480px; height: 480px;
  background: var(--color-electric-iris);
  top: -200px; left: -100px;
  opacity: .35;
}
.cta__bg-orb--2 {
  width: 380px; height: 380px;
  background: var(--color-saffron-spark);
  bottom: -160px; right: -90px;
  opacity: .25;
}
.cta__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
  max-width: 760px;
}
.cta__title {
  font-size: clamp(28px, 4.4vw, var(--text-h3));
  font-weight: var(--w-regular);
  letter-spacing: var(--track-h);
  line-height: 1.1;
}
.cta__sub {
  font-size: var(--text-body-lg);
  color: var(--color-silver-mist);
  line-height: var(--lh-loose);
  font-weight: var(--w-light);
  max-width: 56ch;
}
.cta__contacts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, auto));
  gap: var(--s-5);
  padding-block: var(--s-4);
  border-block: 1px solid var(--line-strong);
  margin-block: var(--s-3);
}
.cta__contacts li { display: flex; flex-direction: column; gap: 2px; }
.cta__contacts-lbl {
  font-size: 11px;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--color-ash-gray);
  font-weight: var(--w-semibold);
}
.cta__contacts a {
  font-size: var(--text-h6);
  font-weight: var(--w-medium);
  color: var(--color-bone-white);
  letter-spacing: -0.01em;
  transition: color var(--d-fast);
}
.cta__contacts a:hover { color: var(--color-electric-iris); }
.cta .btn { align-self: flex-start; }

/* ---------- 18. FOOTER ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: var(--s-8) 0 var(--s-7);
  background: var(--surface-1);
}
.footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--s-7);
  align-items: start;
}
.footer__brand { display: flex; flex-direction: column; gap: var(--s-4); }
.footer__logo { display: flex; align-items: center; gap: var(--s-3); }
.footer__logo .nav__logo-mark { width: 24px; height: 24px; }
.footer__tagline {
  font-size: 14px;
  color: var(--color-silver-mist);
  line-height: 1.5;
  font-weight: var(--w-light);
  max-width: 40ch;
}
.footer__nav { display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-5); }
.footer__nav a {
  font-size: 13px;
  font-weight: var(--w-medium);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ash-gray);
  transition: color var(--d-fast);
  padding-block: 4px;
}
.footer__nav a:hover { color: var(--color-bone-white); }

.footer__legal {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  font-size: 13px;
  color: var(--color-ash-gray);
}
.footer__policy { color: var(--color-ash-gray); border-bottom: 1px dashed var(--line-strong); padding-bottom: 1px; transition: color var(--d-fast), border-color var(--d-fast); }
.footer__policy:hover { color: var(--color-bone-white); border-color: var(--color-electric-iris); }

/* ---------- 19. MODAL ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 3vw, var(--s-7));
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--d-base);
}
.modal.is-open { pointer-events: auto; opacity: 1; }

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal__window {
  position: relative;
  width: min(560px, 100%);
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  padding: clamp(var(--s-6), 4vw, var(--s-8));
  background: linear-gradient(180deg, rgba(20,20,28,.96), rgba(10,10,15,.96));
  border: 1px solid var(--line-strong);
  border-radius: var(--r-xl);
  box-shadow: 0 40px 120px -20px rgba(128,82,255,.5);
  transform: translateY(20px) scale(.96);
  transition: transform var(--d-base) var(--ease-out);
}
.modal.is-open .modal__window { transform: translateY(0) scale(1); }

.modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 40px; height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-bone-white);
  transition: background var(--d-fast);
}
.modal__close:hover { background: rgba(255,255,255,.08); }

.modal__head { display: flex; flex-direction: column; gap: var(--s-3); margin-bottom: var(--s-6); }
.modal__title { font-size: clamp(22px, 2.4vw, var(--text-h4)); font-weight: var(--w-medium); letter-spacing: -0.02em; line-height: 1.15; }
.modal__sub   { font-size: 14px; color: var(--color-silver-mist); font-weight: var(--w-light); line-height: 1.5; }

/* Form */
.form { display: flex; flex-direction: column; gap: var(--s-4); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-3); }
.form__field { display: flex; flex-direction: column; gap: 6px; }
.form__field label {
  font-size: 12px;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--color-ash-gray);
  font-weight: var(--w-semibold);
}
.form__field input {
  height: 48px;
  padding: 0 14px;
  border-radius: var(--r-md);
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line-strong);
  color: var(--color-bone-white);
  font-size: 15px;
  font-family: inherit;
  font-weight: var(--w-regular);
  transition: border-color var(--d-fast), background var(--d-fast);
}
.form__field input::placeholder { color: var(--color-ash-gray); }
.form__field input:focus {
  outline: none;
  border-color: var(--color-electric-iris);
  background: rgba(128,82,255,.08);
}

.form__error {
  font-size: 12px;
  color: #ff5b5b;
  min-height: 0;
  transition: min-height var(--d-fast);
}
.form__field.has-error input { border-color: #ff5b5b; background: rgba(255,91,91,.05); }
.form__field.has-error .form__error { min-height: 16px; }

.form__consent {
  font-size: 12px;
  color: var(--color-ash-gray);
  line-height: 1.5;
}
.form__consent a { color: var(--color-silver-mist); border-bottom: 1px solid var(--line-strong); }
.form__consent a:hover { color: var(--color-bone-white); }

.form__submit { width: 100%; margin-top: var(--s-2); }

.form__success {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4);
  border-radius: var(--r-md);
  background: rgba(128,82,255,.12);
  border: 1px solid rgba(128,82,255,.35);
  color: var(--color-bone-white);
  font-size: 15px;
  font-weight: var(--w-light);
}
.form__success strong { display: block; font-weight: var(--w-semibold); color: var(--color-bone-white); font-size: 16px; }
.form__success span { display: block; color: var(--color-silver-mist); }
.form__success svg { flex-shrink: 0; }

/* ---------- 20. REVEAL ANIMATIONS ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }
.reveal[data-reveal="left"]  { transform: translateX(-30px) translateY(0); }
.reveal[data-reveal="right"] { transform: translateX(30px) translateY(0); }
.reveal.is-visible { opacity: 1; transform: translate(0,0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  #particles-bg { display: none; }
  .hero__ring { display: none; }
  .marquee__track { animation: none; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .cases { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .stages { grid-template-columns: repeat(3, 1fr); }
  .metrics__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__legal { grid-column: span 2; }
}

@media (max-width: 900px) {
  .nav__menu, .nav__phone { display: none; }
  .nav__burger { display: inline-flex; }
  .nav__cta { padding: 10px 14px; font-size: 12px; }
  .nav__right { gap: var(--s-2); }

  .hero__container { grid-template-columns: 1fr; gap: var(--s-8); }
  .hero__visual { max-width: 480px; margin-inline: auto; min-height: 320px; aspect-ratio: 1 / 1; }
  .hero__badge { right: 0; bottom: -10px; }

  .stages { grid-template-columns: repeat(2, 1fr); }
  .manifesto { grid-template-columns: 1fr; }
  .cta__contacts { grid-template-columns: 1fr; gap: var(--s-3); }

  .footer__inner { grid-template-columns: 1fr; }
  .footer__legal { grid-column: auto; }
}

@media (max-width: 700px) {
  .section__head { margin-bottom: var(--s-8); }
  .cases { grid-template-columns: 1fr; }
  .advantages { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-tabs { width: 100%; }
  .pricing-tab { flex: 1; text-align: center; padding: 12px 12px; font-size: 13px; }

  .stages { grid-template-columns: 1fr; }
  .footer__inner > * { text-align: left; }
  .hero__title { letter-spacing: -0.03em; }
}

@media (max-width: 480px) {
  .container { padding-inline: 18px; }
  .advantages { grid-template-columns: 1fr; }
  .metrics__grid { grid-template-columns: 1fr 1fr; gap: var(--s-3); }
  .case, .plan, .advantage, .stage { padding: var(--s-5); }
  .case__numbers { grid-template-columns: 1fr 1fr; }
  .hero__pills { flex-direction: column; gap: var(--s-3); align-items: flex-start; }
  .form__row { grid-template-columns: 1fr; }
  .hero__badge-num { font-size: var(--text-h5); }
}

@supports (height: 100dvh) {
  .hero { min-height: calc(100dvh - 70px); }
}