/* ============================================================
   PQN.ROSTIGAR.RU | Warm Obsidian Design System v3.1 — PQN Landing
   Palette: Charcoal + Cyan + Amber + Purple
   Forked from ai.rostigar.ru — identical visual language
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;900&family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&family=Cormorant+Garamond:wght@600&display=swap');

/* --- Variables --- */
:root {
  --bg-primary: #0f1419;
  --bg-secondary: #1a2332;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);

  --glass: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.09);
  --glass-border-bright: rgba(255, 255, 255, 0.16);
  --glass-top: rgba(245, 166, 35, 0.06);

  --cyan: #00b4d8;
  --cyan-dim: rgba(0, 180, 216, 0.12);
  --amber: #f5a623;
  --amber-dim: rgba(245, 166, 35, 0.12);
  --purple: #8b5cf6;
  --purple-dim: rgba(139, 92, 246, 0.12);
  --green: #22c55e;
  --red: #f43f5e;
  --b2b-accent: hsl(190, 80%, 65%);

  --text-primary: #e8edf4;
  --text-secondary: rgba(232, 237, 244, 0.55);
  --text-muted: rgba(232, 237, 244, 0.28);

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-brand: 'Cormorant Garamond', serif;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius: 16px;
  --radius-sm: 8px;
  --radius-xs: 4px;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   Reset & Base
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-padding-top: 25px;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  font-size: 15px;
}

body:not(.keyboard-navigation) *,
body:not(.keyboard-navigation) *::before,
body:not(.keyboard-navigation) *::after {
  cursor: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=') 0 0, none !important;
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: #80e8ff;
}

img { max-width: 100%; height: auto; }

/* ============================================================
   Custom Cursor
   ============================================================ */
#cursor-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 99999;
  will-change: transform;
}

#cursor-ring {
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  border: 1.5px solid rgba(245, 166, 35, 0.65);
  border-radius: 50%;
  transform: scale(0.636);
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.2), background 0.2s ease, border-color 0.2s ease;
  pointer-events: none;
  will-change: transform, background, border-color;
}

#cursor-dot {
  position: fixed;
  width: 5px;
  height: 5px;
  margin: -2.5px 0 0 -2.5px;
  background: #f5a623;
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  box-shadow: 0 0 8px rgba(245, 166, 35, 0.8);
  will-change: transform;
  top: 0;
  left: 0;
}

body.cursor-hover #cursor-ring {
  transform: scale(1);
  background: rgba(245, 166, 35, 0.10);
  border-color: rgba(245, 166, 35, 0.90);
}

body.cursor-click #cursor-ring {
  transform: scale(0.4);
  background: rgba(245, 166, 35, 0.50);
}

/* ============================================================
   Canvas Background
   ============================================================ */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.bg-noise {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.018;
  display: none;
}

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: rgba(10, 10, 15, 0.4);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 8px 16px 8px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: 100px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
  width: 95%;
  max-width: 1100px;
  height: auto;
  min-height: 60px;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  transition: var(--transition);
}

.nav-brand:hover {
  opacity: 0.85;
}

.nav-logo {
  display: inline-block;
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 0.08em;
  line-height: 1;
  margin-top: -2px;
  font-family: var(--font-serif);
  background: linear-gradient(135deg, #f5a623, #e8943a, #00b4d8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: gradient-shift 4s ease-in-out infinite;
  filter: drop-shadow(0 0 10px rgba(245, 166, 35, 0.35));
}

.nav-tag {
  color: rgba(0, 180, 216, 0.7);
  font-size: 11px;
  letter-spacing: 0.04em;
  font-weight: 600;
  font-family: var(--font-mono);
  margin-top: 1px;
  text-shadow: 0 0 8px rgba(0, 180, 216, 0.2);
  line-height: 1.2;
  max-width: 80px;
}

.nav-links {
  display: flex;
  flex: 1;
  justify-content: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 4px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  transition: var(--transition);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.07);
}

.nav-link.active {
  color: var(--b2b-accent);
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.2);
  text-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
  border-radius: 8px;
}

.nav-cta {
  display: none;
}

/* Nav action buttons */
.nav-btn {
  padding: 8px 18px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 100px;
  white-space: nowrap;
  cursor: pointer;
  font-family: var(--font-main);
  text-decoration: none;
  border: 1px solid transparent;
  transition: var(--transition);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.nav-btn + .nav-btn {
  margin-left: 6px;
}

.nav-btn--primary {
  position: relative;
  background: var(--amber);
  color: var(--bg-primary);
  border-color: rgba(245, 166, 35, 0.5);
  box-shadow: 0 0 16px rgba(245, 166, 35, 0.2);
  overflow: hidden;
}

.nav-btn--primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.35), transparent);
  animation: nav-shine 2.5s ease-in-out infinite;
}

@keyframes nav-shine {
  0% { left: -100%; }
  60% { left: 150%; }
  100% { left: 150%; }
}

.nav-btn--primary:hover {
  box-shadow: 0 0 28px rgba(245, 166, 35, 0.4);
  transform: translateY(-1px);
  color: var(--bg-primary);
}

.nav-btn--secondary {
  background: rgba(0, 180, 216, 0.08);
  border-color: rgba(0, 180, 216, 0.25);
  color: var(--cyan);
}

.nav-btn--secondary:hover {
  background: rgba(0, 180, 216, 0.16);
  border-color: rgba(0, 180, 216, 0.45);
  box-shadow: 0 0 12px rgba(0, 180, 216, 0.15);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  margin: 3px 0;
}

.nav-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* ============================================================
   Layout
   ============================================================ */
.container {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 100px;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding-top: 120px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(38px, 6vw, 78px);
  font-variation-settings: 'wght' var(--font-weight, 900);
  font-weight: var(--font-weight, 900);
  transition: font-weight 0.1s ease, font-variation-settings 0.1s ease;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--cyan), #80e8ff, var(--amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: gradient-shift 4s ease-in-out infinite;
}

@keyframes gradient-shift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 20px;
}

.hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  max-width: 700px;
  margin: 0 auto 40px;
  opacity: 0.85;
}

.hero-actions-wrapper {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 16px;
  margin-top: 56px;
  flex-wrap: wrap;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--cyan), #00f2fe);
  color: #0f1419;
  font-weight: 800;
  font-size: 17px;
  padding: 0 36px;
  border-radius: 14px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 24px rgba(0, 242, 254, 0.35);
  height: 72px;
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 36px rgba(0, 242, 254, 0.50);
  color: #0f1419;
}

.hero-cta-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 17px;
  padding: 0 36px;
  border-radius: 14px;
  text-decoration: none;
  transition: var(--transition);
  height: 72px;
  backdrop-filter: blur(12px);
}

.hero-cta-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--cyan);
  transform: translateY(-2px);
  color: var(--text-primary);
}

/* ============================================================
   Sections
   ============================================================ */
.section {
  padding: 120px 0;
  border-top: none;
  position: relative;
}

.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(70%, 600px);
  height: 1px;
  background: linear-gradient(90deg, transparent, #f5a623, #00b4d8, transparent);
  background-size: 200% 100%;
  animation: divider-glow 4s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(245, 166, 35, 0.3), 0 0 24px rgba(0, 180, 216, 0.15);
}

@keyframes divider-glow {
  0%, 100% { background-position: 0% center; opacity: 0.7; }
  50% { background-position: 100% center; opacity: 1; }
}

.section--dark {
  background: rgba(26, 35, 50, 0.3);
}

.section-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-badge {
  margin-bottom: 16px;
  display: inline-flex;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.badge-cyan {
  background: var(--cyan-dim);
  color: var(--cyan);
  border: 1px solid rgba(0, 180, 216, 0.25);
}

.badge-amber {
  background: var(--amber-dim);
  color: var(--amber);
  border: 1px solid rgba(245, 166, 35, 0.25);
}

.badge-green {
  background: rgba(34, 197, 94, 0.10);
  color: var(--green);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.badge-purple {
  background: var(--purple-dim);
  color: var(--purple);
  border: 1px solid rgba(139, 92, 246, 0.25);
}

/* ============================================================
   Card Reveal Animation (CSS-driven, no JS opacity)
   ============================================================ */
.problem-grid > .card,
.advantages-grid > .card,
.advantages-grid > .advantage-card,
/* removed reliability-card from reveal */
.pricing-grid > .card,
.steps-grid > .card,
.steps-grid > .step-card {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.revealed > .card,
.revealed > .advantage-card,
.revealed > .step-card {
  opacity: 1;
  transform: translateY(0);
}

.revealed > :nth-child(2) { transition-delay: 0.08s; }
.revealed > :nth-child(3) { transition-delay: 0.16s; }
.revealed > :nth-child(4) { transition-delay: 0.24s; }
.revealed > :nth-child(5) { transition-delay: 0.32s; }
.revealed > :nth-child(6) { transition-delay: 0.40s; }

/* ============================================================
   Cards / Glass
   ============================================================ */
.card {
  background: linear-gradient(135deg, rgba(28, 28, 30, 0.88) 0%, rgba(18, 18, 20, 0.95) 100%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.4s ease, border-color 0.4s ease, transform 0.15s ease-out;
  transform-style: preserve-3d;
  will-change: transform;
  z-index: 1;
  background-clip: padding-box;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  container-type: inline-size;
  container-name: bento-card;
}

/* --- Spotlight Hover --- */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  padding: 1px;
  background: radial-gradient(400px circle at var(--mouse-x, -500px) var(--mouse-y, -500px), rgba(0, 180, 216, 0.5), transparent 40%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: radial-gradient(300px circle at var(--mouse-x, -500px) var(--mouse-y, -500px), rgba(0, 180, 216, 0.06), transparent 40%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.card:hover::before,
.card:hover::after {
  opacity: 1;
}

.card:hover {
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 180, 216, 0.1);
  border-color: transparent;
}

/* ============================================================
   Problem Section
   ============================================================ */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}

.problem-card--wide {
  grid-column: 1 / -1;
}

.problem-card--danger {
  border-color: rgba(244, 63, 94, 0.25);
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.06) 0%, var(--glass) 100%);
}

.problem-card--danger:hover {
  border-color: rgba(244, 63, 94, 0.45);
  box-shadow: 0 0 30px rgba(244, 63, 94, 0.08);
}

.problem-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-main);
  font-size: 16px;
  font-weight: 600;
  color: var(--red);
  margin-bottom: 12px;
}

.problem-heading svg {
  flex-shrink: 0;
  color: var(--red);
  filter: drop-shadow(0 0 6px rgba(244, 63, 94, 0.4));
}

.problem-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.problem-bottom-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 800px;
}

.problem-conclusion {
  margin-top: 8px;
  padding: 28px 32px;
  border-left: 3px solid var(--red);
  background: linear-gradient(90deg, rgba(244, 63, 94, 0.06) 0%, transparent 60%);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.problem-conclusion p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-primary);
  opacity: 0.9;
  font-weight: 400;
}

.badge-red {
  color: var(--red);
  border-color: rgba(244, 63, 94, 0.3);
  background: rgba(244, 63, 94, 0.08);
}

/* ============================================================
   Solution Section
   ============================================================ */
.solution-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
  align-items: stretch;
}

.solution-card {
  height: 100%;
}

.solution-card--main {
  border-color: rgba(0, 180, 216, 0.25);
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.06) 0%, var(--glass) 100%);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.solution-card--main:hover {
  border-color: rgba(0, 180, 216, 0.4);
}

.solution-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--cyan-dim);
  border: 1px solid rgba(0, 180, 216, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--cyan);
}

.solution-main {
  font-size: 21px;
  line-height: 1.7;
  color: var(--text-primary);
  font-weight: 500;
}

.solution-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.solution-card--accent,
.solution-card--note,
.solution-card--decree {
  flex: 1;
  display: flex;
  align-items: center;
}

/* Карточка 1: cyan — эмоциональный акцент */
.solution-card--accent {
  border-color: rgba(0, 180, 216, 0.2);
  border-left: 3px solid var(--cyan);
}

.solution-accent {
  font-size: 15px;
  line-height: 1.7;
  color: var(--cyan);
  font-weight: 400;
}

/* Карточка 2: amber — технологическая независимость */
.solution-card--note {
  border-color: rgba(245, 166, 35, 0.15);
  border-left: 3px solid var(--amber);
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.04) 0%, var(--glass) 100%);
}

.solution-note {
  font-size: 15px;
  line-height: 1.7;
  color: var(--amber);
  font-weight: 400;
}

/* Карточка 3: green — указ президента */
.solution-card--decree {
  border-color: rgba(34, 197, 94, 0.2);
  border-left: 3px solid var(--green);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.04) 0%, var(--glass) 100%);
}

.solution-decree {
  font-size: 15px;
  line-height: 1.7;
  color: var(--green);
  font-weight: 400;
}

/* ============================================================
   Advantages
   ============================================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.advantage-card {
  padding: 32px 28px;
}

.adv-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  width: 64px;
  height: 64px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.advantage-card:hover .adv-icon {
  border-color: rgba(0, 180, 216, 0.2);
  box-shadow: 0 0 16px rgba(0, 180, 216, 0.1), 0 0 8px rgba(245, 166, 35, 0.08);
}

.adv-icon svg {
  width: 40px;
  height: 40px;
}

.adv-svg-main {
  transition: filter 0.3s ease;
}

.advantage-card:hover .adv-svg-main {
  filter: drop-shadow(0 0 6px rgba(0, 180, 216, 0.4));
}

.adv-icon--shield svg {
  animation: adv-breathe 3s ease-in-out infinite;
}

.adv-icon--bolt svg {
  animation: adv-bolt-pulse 2s ease-in-out infinite;
}

.adv-icon--lock svg {
  animation: adv-breathe 4s ease-in-out infinite;
}

.adv-icon--grid .adv-svg-orbit {
  transform-origin: center;
  animation: adv-orbit 8s linear infinite;
}

.adv-icon--chat svg {
  animation: adv-breathe 3.5s ease-in-out infinite;
}

@keyframes adv-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes adv-bolt-pulse {
  0%, 100% { filter: drop-shadow(0 0 2px rgba(245, 166, 35, 0.2)); }
  50% { filter: drop-shadow(0 0 8px rgba(245, 166, 35, 0.5)); }
}

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

.adv-title {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 8px;
}

.adv-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   AI Services (Pills)
   ============================================================ */
.services-intro {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  text-align: center;
  max-width: 700px;
  margin: 0 auto 40px;
}

.services-categories {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
  text-align: center;
}

.services-category {
  width: 100%;
}

.services-category__label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.services-category__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.service-pill {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  transition: var(--transition);
  white-space: nowrap;
}

.service-pill:hover {
  border-color: var(--cyan);
  background: var(--cyan-dim);
  transform: translateY(-2px);
}

/* ============================================================
   Reliability (9 Channels)
   ============================================================ */
.reliability-card {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  padding: 56px 48px;
  border-color: rgba(0, 180, 216, 0.15);
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.03) 0%, rgba(28, 28, 30, 0.88) 40%, rgba(18, 18, 20, 0.95) 100%);
}

.reliability-hero {
  position: relative;
  width: 100%;
  height: 400px;
  margin: 0 auto 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  padding-bottom: 60px;
}

.reliability-number {
  font-family: var(--font-serif);
  font-size: clamp(160px, 18vw, 220px);
  font-weight: 900;
  line-height: 1;
  color: var(--cyan);
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1em;
  height: 1em;
  text-align: center;
  padding-bottom: 15%;
  animation: number-neon-pulse 3s ease-in-out infinite;
}

@keyframes number-neon-pulse {
  0% {
    text-shadow:
      0 0 8px rgba(0, 180, 216, 0.5),
      0 0 20px rgba(0, 180, 216, 0.3),
      0 0 50px rgba(0, 180, 216, 0.15),
      0 0 100px rgba(0, 180, 216, 0.08);
    filter: brightness(1.0) drop-shadow(0 0 30px rgba(0, 180, 216, 0.2));
    color: hsl(193, 100%, 42%);
  }
  25% {
    text-shadow:
      0 0 12px rgba(0, 220, 255, 0.9),
      0 0 35px rgba(0, 200, 240, 0.7),
      0 0 70px rgba(0, 180, 216, 0.5),
      0 0 140px rgba(0, 180, 216, 0.3),
      0 0 220px rgba(0, 160, 220, 0.15);
    filter: brightness(1.15) drop-shadow(0 0 50px rgba(0, 200, 240, 0.35));
    color: hsl(193, 100%, 50%);
  }
  50% {
    text-shadow:
      0 0 20px rgba(0, 240, 255, 1),
      0 0 50px rgba(0, 220, 255, 0.9),
      0 0 100px rgba(0, 200, 240, 0.6),
      0 0 180px rgba(0, 180, 216, 0.4),
      0 0 300px rgba(0, 160, 220, 0.2),
      0 0 450px rgba(0, 140, 200, 0.08);
    filter: brightness(1.3) drop-shadow(0 0 80px rgba(0, 220, 255, 0.5));
    color: hsl(190, 100%, 60%);
  }
  75% {
    text-shadow:
      0 0 12px rgba(0, 220, 255, 0.9),
      0 0 35px rgba(0, 200, 240, 0.7),
      0 0 70px rgba(0, 180, 216, 0.5),
      0 0 140px rgba(0, 180, 216, 0.3),
      0 0 220px rgba(0, 160, 220, 0.15);
    filter: brightness(1.15) drop-shadow(0 0 50px rgba(0, 200, 240, 0.35));
    color: hsl(193, 100%, 50%);
  }
  100% {
    text-shadow:
      0 0 8px rgba(0, 180, 216, 0.5),
      0 0 20px rgba(0, 180, 216, 0.3),
      0 0 50px rgba(0, 180, 216, 0.15),
      0 0 100px rgba(0, 180, 216, 0.08);
    filter: brightness(1.0) drop-shadow(0 0 30px rgba(0, 180, 216, 0.2));
    color: hsl(193, 100%, 42%);
  }
}

.reliability-dots {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  z-index: -1;
}

.reliability-dots span {
  position: absolute;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  background: var(--cyan);
  border-radius: 50%;
  opacity: 0.1;
  box-shadow: 0 0 8px rgba(0, 180, 216, 0.4);
  animation: dot-neon 3s infinite ease-in-out;
}

/* 9 точек по кругу, радиус 180px, шаг 40deg (360/9) */
.reliability-dots span:nth-child(1) { transform: rotate(0deg)   translateY(-180px); animation-delay: 0s; }
.reliability-dots span:nth-child(2) { transform: rotate(40deg)  translateY(-180px); animation-delay: 0.33s; }
.reliability-dots span:nth-child(3) { transform: rotate(80deg)  translateY(-180px); animation-delay: 0.66s; }
.reliability-dots span:nth-child(4) { transform: rotate(120deg) translateY(-180px); animation-delay: 1s; }
.reliability-dots span:nth-child(5) { transform: rotate(160deg) translateY(-180px); animation-delay: 1.33s; }
.reliability-dots span:nth-child(6) { transform: rotate(200deg) translateY(-180px); animation-delay: 1.66s; }
.reliability-dots span:nth-child(7) { transform: rotate(240deg) translateY(-180px); animation-delay: 2s; }
.reliability-dots span:nth-child(8) { transform: rotate(280deg) translateY(-180px); animation-delay: 2.33s; }
.reliability-dots span:nth-child(9) { transform: rotate(320deg) translateY(-180px); animation-delay: 2.66s; }

@keyframes dot-neon {
  0%, 100% {
    opacity: 0.08;
    box-shadow: 0 0 4px rgba(0, 180, 216, 0.2);
    width: 6px;
    height: 6px;
  }
  50% {
    opacity: 0.6;
    box-shadow: 0 0 16px rgba(0, 220, 255, 0.8), 0 0 35px rgba(0, 180, 216, 0.4);
    width: 9px;
    height: 9px;
  }
}

.reliability-main {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-primary);
  max-width: 640px;
  margin: 0 auto 20px;
}

.reliability-accent {
  font-size: 19px;
  line-height: 1.6;
  color: var(--cyan);
  font-weight: 600;
  margin: 32px auto;
  max-width: 600px;
}

.reliability-benefits {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 36px 0;
  text-align: left;
}

.reliability-benefit {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  transition: var(--transition);
}

.reliability-benefit:hover {
  border-color: var(--cyan);
  background: var(--cyan-dim);
}

.rb-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--cyan);
}

.reliability-benefit span {
  font-size: 17px;
  color: var(--text-primary);
  font-weight: 500;
}

.reliability-final {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
  font-style: italic;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   Pricing
   ============================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
}

.pricing-card {
  text-align: center;
  padding: 40px 32px;
  position: relative;
}

.pricing-card--popular {
  border-color: var(--cyan);
  box-shadow: 0 0 40px rgba(0, 180, 216, 0.08);
}

.pricing-card--best {
  border-color: var(--amber);
  box-shadow: 0 0 40px rgba(245, 166, 35, 0.06);
}

.pricing-badge {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 5px 16px;
  border-radius: 100px;
  white-space: nowrap;
}

.pricing-badge--popular {
  background: var(--cyan);
  color: var(--bg-primary);
}

.pricing-badge--best {
  background: var(--amber);
  color: var(--bg-primary);
}

.pricing-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
  margin-top: 8px;
}

.pricing-period {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.pricing-price {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 3.2rem;
  line-height: 1;
  margin-bottom: 4px;
}

.pricing-price span {
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.pricing-total {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.pricing-btn {
  width: 100%;
  justify-content: center;
}

.pricing-note {
  text-align: center;
  font-size: 15px;
  color: var(--text-muted);
  margin-top: 72px;
}

.pricing-note a {
  color: var(--cyan);
}

.pricing-note a:hover {
  text-decoration: underline;
}

/* ============================================================
   B2B / Corporate
   ============================================================ */

.b2b-card {
  padding: 48px 40px;
  text-align: center;
  border-color: var(--amber);
  box-shadow: 0 0 60px rgba(245, 166, 35, 0.04);
}

.b2b-intro {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-primary);
  max-width: 700px;
  margin: 0 auto 40px;
}

.b2b-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: auto;
  gap: 20px;
  margin-bottom: 40px;
  text-align: left;
}

.b2b-feature {
  padding: 24px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.b2b-feature:hover {
  border-color: var(--amber);
  background: var(--amber-dim);
}

.b2b-feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--amber);
  flex-shrink: 0;
  animation: b2b-icon-pulse 3s ease-in-out infinite;
}

.b2b-feature:nth-child(2) .b2b-feature-icon { animation-delay: 0.4s; }
.b2b-feature:nth-child(3) .b2b-feature-icon { animation-delay: 0.8s; }
.b2b-feature:nth-child(4) .b2b-feature-icon { animation-delay: 1.2s; }
.b2b-feature:nth-child(5) .b2b-feature-icon { animation-delay: 1.6s; }

@keyframes b2b-icon-pulse {
  0%, 100% {
    filter: drop-shadow(0 0 4px rgba(245, 166, 35, 0.15));
    transform: translateY(0);
  }
  50% {
    filter: drop-shadow(0 0 12px rgba(245, 166, 35, 0.4));
    transform: translateY(-4px);
  }
}

.b2b-feature-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  min-height: 4.8em;
  margin-bottom: 8px;
}

.b2b-feature-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 1024px) {
  .b2b-grid { grid-template-columns: repeat(3, 1fr); }
}

.b2b-legal {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto 32px;
}

.b2b-cta {
  display: flex;
  justify-content: center;
}

.b2b-btn {
  font-size: 16px;
  padding: 16px 40px;
  background: linear-gradient(135deg, var(--amber), #e09520);
  border: none;
  color: var(--bg-primary);
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 0 0 30px rgba(245, 166, 35, 0.15);
  transition: var(--transition);
}

.b2b-btn:hover {
  box-shadow: 0 0 50px rgba(245, 166, 35, 0.25);
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .b2b-card { padding: 28px 20px; }
  .b2b-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Steps
   ============================================================ */
.steps-grid {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 16px;
}

.step-card {
  flex: 1;
  max-width: 340px;
  padding: 40px 28px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.step-num {
  font-size: 64px;
  font-weight: 900;
  font-family: var(--font-mono);
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(0, 242, 254, 0.25);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -2px;
  user-select: none;
}

/* Нарастающая яркость 01 → 02 → 03 */
.step-card:nth-child(1) .step-num { -webkit-text-stroke: 1.5px rgba(0, 242, 254, 0.25); }
.step-card:nth-child(3) .step-num { -webkit-text-stroke: 1.5px rgba(0, 242, 254, 0.45); }
.step-card:nth-child(5) .step-num { -webkit-text-stroke: 1.5px rgba(0, 242, 254, 0.7); text-shadow: 0 0 20px rgba(0, 242, 254, 0.15); }

.step-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step-icon svg {
  width: 44px;
  height: 44px;
  animation: icon-float 3s ease-in-out infinite;
}

.step-card:nth-child(3) .step-icon svg { animation-delay: 0.5s; }
.step-card:nth-child(5) .step-icon svg { animation-delay: 1s; }

@keyframes icon-float {
  0%, 100% {
    transform: translateY(0);
    filter: drop-shadow(0 0 4px rgba(0, 180, 216, 0.2));
  }
  50% {
    transform: translateY(-6px);
    filter: drop-shadow(0 0 12px rgba(0, 180, 216, 0.5));
  }
}

.step-title {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 12px;
}

.step-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-arrow {
  flex-shrink: 0;
  opacity: 0.3;
  align-self: center;
}

/* ============================================================
   FAQ
   ============================================================ */
/* ============================================================
   Partner Teaser
   ============================================================ */

.partner-teaser {
  padding: 48px 40px;
  text-align: center;
  border-color: rgba(139, 92, 246, 0.2);
  box-shadow: 0 0 60px rgba(139, 92, 246, 0.04);
}

.partner-levels {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.partner-level {
  background: var(--glass);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 16px;
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 160px;
  transition: var(--transition);
}

.partner-level:hover {
  border-color: var(--purple);
  background: var(--purple-dim);
  transform: translateY(-4px);
}

.partner-level-badge {
  background: var(--purple);
  color: var(--bg-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

.partner-level-percent {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 900;
  color: var(--purple);
}

.partner-level-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.partner-note {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto 32px;
}

.partner-cta {
  display: flex;
  justify-content: center;
}

.partner-btn {
  font-size: 16px;
  padding: 16px 40px;
  background: linear-gradient(135deg, var(--purple), #7c3aed);
  border: none;
  color: #fff;
  font-weight: 700;
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.15);
}

.partner-btn:hover {
  box-shadow: 0 0 50px rgba(139, 92, 246, 0.3);
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .partner-teaser { padding: 28px 20px; }
  .partner-levels { gap: 16px; }
  .partner-level { min-width: 120px; padding: 16px 20px; }
}

/* ============================================================
   FAQ
   ============================================================ */

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--glass-border-bright);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-primary);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-main);
  gap: 16px;
}

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  position: relative;
  transition: var(--transition);
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition);
}

.faq-icon::before {
  width: 16px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  width: 2px;
  height: 16px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-item.active .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-answer-inner strong {
  color: var(--text-primary);
  font-weight: 600;
}

.faq-item.active .faq-answer {
  max-height: 800px;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  min-height: 48px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: none !important;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  will-change: transform;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), #00e0ff);
  color: #0f1419;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(0, 180, 216, 0.25);
}

.btn-primary:not([disabled]):hover {
  background: #00e0ff;
  box-shadow: 0 8px 30px rgba(0, 180, 216, 0.35);
  color: #0f1419;
}

.btn:disabled {
  opacity: 0.5;
  filter: grayscale(1);
  cursor: none !important;
  transform: none !important;
  box-shadow: none !important;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  border-top: none;
  padding: 60px 0 40px;
  margin-top: 40px;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(70%, 600px);
  height: 1px;
  background: linear-gradient(90deg, transparent, #f5a623, #00b4d8, transparent);
  background-size: 200% 100%;
  animation: divider-glow 4s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(245, 166, 35, 0.3), 0 0 24px rgba(0, 180, 216, 0.15);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 900;
  display: inline-block;
  background: linear-gradient(135deg, #00b4d8, #00e0ff, #f5a623, #00b4d8);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: footer-brand-glow 5s ease-in-out infinite;
  filter: drop-shadow(0 0 12px rgba(0, 180, 216, 0.4)) drop-shadow(0 0 20px rgba(245, 166, 35, 0.15));
  margin-bottom: 16px;
}

@keyframes footer-brand-glow {
  0%, 100% { background-position: 0% center; filter: drop-shadow(0 0 12px rgba(0, 180, 216, 0.4)) drop-shadow(0 0 20px rgba(245, 166, 35, 0.15)); }
  50% { background-position: 100% center; filter: drop-shadow(0 0 16px rgba(0, 180, 216, 0.5)) drop-shadow(0 0 24px rgba(245, 166, 35, 0.25)); }
}

.footer-legal {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  font-family: var(--font-mono);
}

.footer-heading {
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-link {
  display: block;
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  padding: 6px 0;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--cyan);
}

.footer-sovereignty {
  padding: 20px 0;
  margin-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 14px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.6;
}

.footer-bottom {
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ============================================================
   Telegram FAB
   ============================================================ */
.tg-fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--cyan);
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 4px 20px rgba(0, 180, 216, 0.4);
  z-index: 1000;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.tg-fab:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 30px rgba(0, 180, 216, 0.6);
}

.tg-fab:active {
  transform: translateY(2px) scale(0.95);
  box-shadow: 0 2px 10px rgba(0, 180, 216, 0.4);
}

.tg-fab svg {
  position: relative;
  z-index: 2;
  transition: transform 0.3s ease;
}

.tg-fab:hover svg {
  transform: rotate(-10deg) scale(1.1);
}

.tg-fab::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50%;
  background: var(--cyan);
  z-index: 1;
  animation: tg-pulse 2s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes tg-pulse {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* ============================================================
   Premium Effects
   ============================================================ */
.shimmer-text {
  background: linear-gradient(-60deg, #fff 40%, rgba(255, 255, 255, 0.4) 50%, #fff 60%);
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer-swipe 8s infinite linear;
}

@keyframes shimmer-swipe {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.glow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--b2b-accent);
  box-shadow: 0 0 10px var(--b2b-accent);
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
  margin-bottom: 1px;
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% { box-shadow: 0 0 6px var(--b2b-accent); opacity: 0.7; }
  50% { box-shadow: 0 0 14px var(--b2b-accent), 0 0 20px rgba(0, 242, 254, 0.3); opacity: 1; }
}

/* ============================================================
   Accessibility (WCAG 2.2)
   ============================================================ */
body.keyboard-navigation,
body.keyboard-navigation *,
body.keyboard-navigation *:hover {
  cursor: auto !important;
}

body.keyboard-navigation #cursor-wrapper,
body.keyboard-navigation #cursor-dot,
body.keyboard-navigation #cursor-ring {
  display: none !important;
}

body.keyboard-navigation :focus-visible {
  outline: 3px solid var(--cyan) !important;
  outline-offset: 4px;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
  transition: outline-offset 0.2s ease;
  z-index: 10;
  border-radius: inherit;
}

/* ============================================================
   Motion Toggle
   ============================================================ */
.squish-shadow-active {
  box-shadow: inset 0 8px 16px rgba(0, 0, 0, 0.8), 0 0 0 rgba(0, 0, 0, 0) !important;
  transition: box-shadow 0.1s ease !important;
}

.motion-toggle {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(40, 40, 42, 0.6);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  cursor: pointer;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s ease;
}

.motion-toggle:hover {
  background: rgba(60, 60, 64, 0.8);
  transform: scale(1.1);
}

.motion-toggle.disabled {
  color: #ff4b4b;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (min-width: 1101px) {
  .nav-links {
    display: flex !important;
  }
}

/* Mobile-CTA дубликаты ("Подключить" / "Кабинет") внутри dropdown.
   Скрыты везде, кроме открытого hamburger-меню на узких экранах. */
.nav-link--mobile-cta {
  display: none;
}

/* Hamburger включается раньше, чем кнопки "Подключить"/"Кабинет" начнут
   вылезать за пределы вьюпорта. На 1100 как раз помещаются brand + 5 nav-links
   без CTA; CTA уезжают в dropdown. */
@media (max-width: 1100px) {
  .nav-hamburger {
    display: flex;
  }

  .nav-cta,
  .nav-btn {
    display: none;
  }

  .nav-links {
    display: none !important;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(20, 18, 15, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    margin-top: 8px;
    padding: 16px;
    gap: 4px;
  }

  .nav-links.active {
    display: flex !important;
  }

  .nav-links .nav-link {
    padding: 14px 18px;
    border-radius: 12px;
    width: 100%;
    text-align: left;
    white-space: normal;
  }

  .nav-links.active .nav-link--mobile-cta {
    display: block;
    margin-top: 4px;
    text-align: center;
    font-weight: 600;
  }

  .nav-links.active .nav-link--cta-primary {
    background: linear-gradient(135deg, #5fd4d6 0%, #4ab8ba 100%);
    color: #14120f;
    margin-top: 12px;
  }

  .nav-links.active .nav-link--mobile-cta:not(.nav-link--cta-primary) {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }
}

@media (max-width: 1024px) {
  .nav {
    padding: 0 20px;
  }

  .container {
    padding: 0 20px;
  }

  .section { padding: 80px 0; }

  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 36px;
  }

  .section-title {
    font-size: 32px;
  }

  .section-header { margin-bottom: 40px; }
  .card { padding: 24px; }
  .step-card { padding: 28px 20px; }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .problem-card--wide {
    grid-column: span 1;
  }

  .solution-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    flex-direction: column;
    align-items: center;
  }

  .step-card {
    width: 100%;
    max-width: 100%;
  }

  .step-arrow {
    transform: rotate(90deg);
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .reliability-benefits {
    grid-template-columns: 1fr;
  }

  .reliability-card {
    padding: 36px 24px;
  }

  .unused-removed {
    grid-column: span 1;
  }

  .hero-actions-wrapper {
    flex-direction: column;
    align-items: stretch;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 160px 0 40px;
  }

  .section {
    padding: 48px 0;
  }

  .hero-cta {
    width: 100%;
    justify-content: center;
  }

  .hero-cta-secondary {
    width: 100%;
    justify-content: center;
  }

  #cursor-wrapper,
  #cursor-dot {
    display: none !important;
  }

  *,
  *::before,
  *::after {
    cursor: auto !important;
  }

  body {
    cursor: auto !important;
  }

  .tg-fab {
    bottom: 24px;
    right: 24px;
    width: 50px;
    height: 50px;
  }

  .nav-lk, .nav-btn {
    display: none;
  }
}

/* ============================================================
   Login Modal
   ============================================================ */
.login-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.login-modal-content {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border-bright);
  border-radius: var(--radius);
  padding: 40px 32px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
}

.login-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
}

.login-modal-close:hover {
  color: var(--text-primary);
}

.login-modal-header {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.login-modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.5;
}