/* ============================================================
   Content Online — новый лендинг
   Серо-фиолетовая тёмная тема, адаптировано из AI-дизайна
   ============================================================ */

/* --- 0. CSS Custom Properties (Design Tokens) --- */
:root {
  /* Цветовая палитра — hex-фолбэки для совместимости */
  --co-bg: #111827;
  --co-bg-95: rgba(17, 24, 39, 0.95);
  --co-card: #1e2536;
  --co-card-30: rgba(30, 37, 54, 0.3);
  --co-card-40: rgba(30, 37, 54, 0.4);
  --co-card-60: rgba(30, 37, 54, 0.6);
  --co-fg: #f4f4f6;
  --co-fg-90: rgba(244, 244, 246, 0.9);
  --co-primary: #e0e0ec;
  --co-primary-fg: #1e2536;
  --co-secondary: #2e3448;
  --co-secondary-fg: #f4f4f6;
  --co-muted: #2e3448;
  --co-muted-fg: #9a9ab4;
  --co-accent: #2e3448;
  --co-accent-fg: #f4f4f6;
  --co-border: rgba(255, 255, 255, 0.1);
  --co-input: rgba(255, 255, 255, 0.15);
  --co-ring: #7c7c9a;
  --co-destructive: #e74c3c;

  /* Графики / акцентные цвета */
  --co-chart-1: #5b6abf;
  --co-chart-3: #a0845e;

  /* Градиенты */
  --co-gradient-1: #6366f1;
  --co-gradient-2: #22c55e;
  --co-gradient-3: #ec4899;

  /* Радиусы */
  --co-radius: 8px;
  --co-radius-sm: 4px;
  --co-radius-md: 6px;
  --co-radius-lg: 8px;
  --co-radius-xl: 12px;
  --co-radius-2xl: 16px;
  --co-radius-3xl: 24px;
  --co-radius-full: 9999px;

  /* Тени */
  --co-shadow-sm: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.1);
  --co-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.1);
  --co-shadow-lg: 0 1px 3px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.1);
  --co-shadow-xl: 0 1px 3px rgba(0,0,0,0.1), 0 8px 10px rgba(0,0,0,0.1);
  --co-shadow-2xl: 0 1px 3px rgba(0,0,0,0.25);

  /* Шрифты */
  --co-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --co-font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --co-font-mono: 'Roboto Mono', 'Fira Code', monospace;

  /* Анимации */
  --co-transition: 200ms ease;
  --co-transition-slow: 300ms ease;
}

/* oklch для современных браузеров */
@supports (color: oklch(0 0 0)) {
  :root {
    --co-bg: oklch(0.141 0.005 285.823);
    --co-card: oklch(0.21 0.006 285.885);
    --co-fg: oklch(0.985 0 0);
    --co-primary: oklch(0.92 0.004 286.32);
    --co-primary-fg: oklch(0.21 0.006 285.885);
    --co-secondary: oklch(0.274 0.006 286.033);
    --co-muted: oklch(0.274 0.006 286.033);
    --co-muted-fg: oklch(0.705 0.015 286.067);
    --co-accent: oklch(0.274 0.006 286.033);
    --co-ring: oklch(0.552 0.016 285.938);
    --co-chart-1: oklch(0.488 0.243 264.376);
    --co-chart-3: oklch(0.398 0.07 227.392);
  }
}

/* --- 1. Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--co-font-sans);
  background: var(--co-bg);
  color: var(--co-fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul, ol { list-style: none; }

/* --- 2. Layout Utilities --- */
.co-container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .co-container { padding: 0 1.5rem; }
}

@media (min-width: 1024px) {
  .co-container { padding: 0 2rem; }
}

.co-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* --- 3. Header --- */
.co-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--co-bg-95);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--co-border);
  box-shadow: var(--co-shadow-sm);
  transition: background var(--co-transition);
}

.co-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.co-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.co-header__logo img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

@media (min-width: 1024px) {
  .co-header__logo img {
    height: 46px;
  }
}

.co-header__logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.co-header__logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--co-chart-1), var(--co-gradient-3));
  border-radius: var(--co-radius-md);
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  margin-right: 0.5rem;
}

/* Author header nav */
.co-header__nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .co-header__nav { display: flex; }
}

.co-header__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.55);
  transition: color var(--co-transition);
  white-space: nowrap;
  text-decoration: none;
}

.co-header__link:hover {
  color: #fff;
}

.co-header__link--desktop {
  display: none;
}

@media (min-width: 1024px) {
  .co-header__link--desktop { display: inline; }
}

.co-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.co-header__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

@media (min-width: 768px) {
  .co-header__burger { display: none; }
}

.co-header__burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: rgba(255,255,255,0.7);
  border-radius: 1px;
  transition: all 0.3s;
}

/* Desktop nav (main page) */
.co-nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .co-nav { display: flex; }
}

.co-nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--co-muted-fg);
  transition: color var(--co-transition);
  white-space: nowrap;
}

.co-nav__link:hover {
  color: var(--co-fg);
}

.co-nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Mobile menu toggle */
.co-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 36px;
  height: 36px;
  gap: 5px;
  border-radius: var(--co-radius-md);
  transition: background var(--co-transition);
}

.co-menu-toggle:hover { background: rgba(255,255,255,0.1); }

@media (min-width: 768px) {
  .co-menu-toggle { display: none; }
}

.co-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--co-fg);
  border-radius: 1px;
  transition: transform var(--co-transition-slow), opacity var(--co-transition);
}

.co-menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.co-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.co-menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav panel */
.co-mobile-nav {
  display: none;
  position: fixed;
  inset: 72px 0 0 0;
  background: var(--co-bg);
  z-index: 49;
  padding: 1.5rem;
  flex-direction: column;
  gap: 1rem;
  border-top: 1px solid var(--co-border);
  overflow-y: auto;
}

.co-mobile-nav.active {
  display: flex;
}

.co-mobile-nav a {
  display: block;
  padding: 0.75rem 0;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--co-muted-fg);
  border-bottom: 1px solid var(--co-border);
  transition: color var(--co-transition);
}

.co-mobile-nav a:hover { color: var(--co-fg); }

/* --- 4. Buttons --- */
.co-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--co-radius-full);
  padding: 0.625rem 1.5rem;
  transition: all var(--co-transition);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  border: none;
  line-height: 1.4;
}

.co-btn svg { width: 1rem; height: 1rem; flex-shrink: 0; }

.co-btn--primary {
  background: var(--co-primary);
  color: var(--co-primary-fg);
  box-shadow: 0 0 20px rgba(99,102,241,0.2);
}

.co-btn--primary:hover {
  opacity: 0.9;
  box-shadow: 0 0 30px rgba(99,102,241,0.35);
}

.co-btn--outline {
  background: rgba(255,255,255,0.05);
  color: var(--co-fg);
  border: 1px solid rgba(255,255,255,0.2);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.co-btn--outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.35);
  box-shadow: 0 4px 16px rgba(255,255,255,0.06);
}

.co-btn--ghost {
  background: transparent;
  color: var(--co-muted-fg);
  padding: 0.5rem 0.75rem;
}

.co-btn--ghost:hover {
  color: var(--co-fg);
  background: rgba(255,255,255,0.05);
}

.co-btn--lg {
  height: 56px;
  padding: 0 2rem;
  font-size: 1rem;
}

.co-btn--sm {
  height: 36px;
  padding: 0 1rem;
  font-size: 0.8125rem;
}

.co-btn--chart1 {
  background: rgba(91,106,191,0.15);
  color: #fff;
  border: 1px solid rgba(91,106,191,0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.co-btn--chart1:hover {
  background: rgba(91,106,191,0.28);
  border-color: rgba(139,159,219,0.55);
  box-shadow: 0 4px 20px rgba(91,106,191,0.25);
}

.co-btn--chart3 {
  background: rgba(200,168,122,0.12);
  color: #fff;
  border: 1px solid rgba(200,168,122,0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.co-btn--chart3:hover {
  background: rgba(200,168,122,0.25);
  border-color: rgba(200,168,122,0.55);
  box-shadow: 0 4px 20px rgba(200,168,122,0.2);
}

.co-btn--gradient {
  background: linear-gradient(135deg, rgba(139,92,246,0.9), rgba(192,132,252,0.9));
  color: #fff;
  font-weight: 700;
  border: 1px solid rgba(192,132,252,0.3);
  box-shadow: 0 4px 24px rgba(139,92,246,0.3);
}

.co-btn--gradient:hover {
  box-shadow: 0 6px 32px rgba(139,92,246,0.45);
  border-color: rgba(192,132,252,0.5);
}

/* --- 5. Hero Section --- */
.co-hero {
  position: relative;
  min-height: auto;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 2rem 0 3rem;
}

.co-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.co-hero__grid-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image:
    linear-gradient(to right, var(--co-fg) 1px, transparent 1px),
    linear-gradient(to bottom, var(--co-fg) 1px, transparent 1px);
  background-size: 4rem 4rem;
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 40%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 40%, transparent 100%);
}

.co-hero__blob-1 {
  position: absolute;
  top: 0;
  right: 0;
  transform: translateY(-12%) translateX(33%);
  width: 800px;
  height: 800px;
  background: rgba(46,52,72,0.1);
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}

.co-hero__blob-2 {
  position: absolute;
  bottom: 0;
  left: 0;
  transform: translateY(33%) translateX(-33%);
  width: 600px;
  height: 600px;
  background: rgba(224,224,236,0.1);
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
}

.co-hero__inner {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .co-hero__inner {
    grid-template-columns: 6fr 4fr;
    gap: 2rem;
  }
}

.co-hero__content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.co-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--co-radius-full);
  background: rgba(46,52,72,0.1);
  border: 1px solid rgba(244,244,246,0.2);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--co-accent-fg);
  width: fit-content;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.co-hero__badge svg {
  width: 1rem;
  height: 1rem;
}

.co-hero__content-box {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 1.5rem;
  padding: 2.5rem 2rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

@media (min-width: 768px) {
  .co-hero__content-box { padding: 3rem 2.5rem; }
}

.co-hero__title {
  font-family: var(--co-font-serif);
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  background: linear-gradient(to bottom, #fff, rgba(255,255,255,0.7));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.co-hero__lead {
  font-size: 1.125rem;
  color: var(--co-muted-fg);
  line-height: 1.6;
  max-width: 640px;
}

@media (min-width: 640px) {
  .co-hero__lead { font-size: 1.25rem; }
}

.co-hero__actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1rem;
}

@media (min-width: 640px) {
  .co-hero__actions { flex-direction: row; }
}

.co-hero__services {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.co-hero__service {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.5;
}

.co-hero__service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(139,92,246,0.12);
  border: 1px solid rgba(139,92,246,0.2);
  color: #a78bfa;
  flex-shrink: 0;
}

.co-hero__service-icon svg {
  width: 18px;
  height: 18px;
}

.co-hero__stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.co-hero__stat-value {
  font-family: var(--co-font-serif);
  font-size: 1.875rem;
  font-weight: 700;
}

.co-hero__stat-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--co-muted-fg);
}

.co-hero__stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.08);
}

/* Hero visual (right col) */
.co-hero__visual {
  position: relative;
  height: 400px;
  width: 100%;
  display: none;
}

@media (min-width: 1024px) {
  .co-hero__visual { display: block; height: 600px; }
}

.co-hero__card {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: 400px;
  aspect-ratio: 4/3;
  background: var(--co-card-30);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--co-radius-3xl);
  box-shadow: var(--co-shadow-2xl), 0 25px 50px rgba(0,0,0,0.5);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 20;
}

.co-hero__card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.co-hero__card-title {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.co-hero__card-title svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--co-primary);
}

.co-hero__card-subtitle {
  font-size: 0.875rem;
  color: var(--co-muted-fg);
  margin-top: 0.25rem;
}

.co-hero__card-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(224,224,236,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.co-hero__card-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--co-primary);
}

/* Декоративный SVG-график в карточке */
.co-hero__chart {
  flex: 1;
  width: 100%;
  min-height: 120px;
}

.co-hero__chart svg {
  width: 100%;
  height: 100%;
}

/* Floating widgets */
.co-hero__float {
  position: absolute;
  border-radius: var(--co-radius-2xl);
  padding: 1rem;
  box-shadow: var(--co-shadow-xl);
  z-index: 30;
  border: 1px solid rgba(255,255,255,0.1);
}

.co-hero__float--status {
  top: 10%;
  right: 5%;
  width: 192px;
  background: var(--co-card-60);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  animation: co-float 6s ease-in-out infinite alternate;
}

.co-hero__float--deal {
  bottom: 15%;
  left: 0;
  width: 224px;
  background: var(--co-secondary);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  padding: 1.25rem;
  animation: co-float 7s ease-in-out infinite alternate-reverse;
}

.co-hero__float-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.co-hero__float-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(244,244,246,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.co-hero__float-icon svg {
  width: 1rem;
  height: 1rem;
}

.co-hero__float-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--co-muted-fg);
}

.co-hero__float-value {
  font-size: 0.875rem;
  font-weight: 700;
}

.co-hero__float--deal .co-hero__float-label {
  color: rgba(244,244,246,0.7);
}

.co-hero__float--deal .co-hero__float-text {
  font-family: var(--co-font-serif);
  font-size: 1.125rem;
  line-height: 1.3;
  margin-top: 0.25rem;
}

/* Hero glow */
.co-hero__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 120%;
  aspect-ratio: 1;
  background: linear-gradient(to top right, rgba(46,52,72,0.1), rgba(224,224,236,0.05));
  border-radius: 50%;
  filter: blur(80px);
  z-index: 0;
}

@keyframes co-float {
  0% { transform: translateY(0); }
  100% { transform: translateY(-12px); }
}

/* --- 6. Stats Section --- */
.co-stats {
  width: 100%;
  padding: 2rem 0 3rem;
  border-bottom: 1px solid var(--co-border);
  overflow: hidden;
  position: relative;
}

.co-stats__grid {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--co-border);
  border-radius: var(--co-radius-2xl);
  background: rgba(255,255,255,0.05);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow: var(--co-shadow-2xl);
  overflow: hidden;
}

@media (min-width: 640px) {
  .co-stats__grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
  .co-stats__grid { grid-template-columns: repeat(4, 1fr); }
}

.co-stats__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 2rem;
  gap: 0.75rem;
  border-bottom: 1px solid var(--co-border);
  transition: all var(--co-transition-slow);
  text-align: center;
}

@media (min-width: 640px) {
  .co-stats__item { border-right: 1px solid var(--co-border); }
  .co-stats__item:nth-child(2n) { border-right: none; }
}

@media (min-width: 768px) {
  .co-stats__item {
    border-bottom: none;
    border-right: 1px solid var(--co-border);
  }
  .co-stats__item:last-child { border-right: none; }
}

.co-stats__item:hover {
  background: rgba(255,255,255,0.05);
  transform: scale(1.05);
}

.co-stats__number {
  font-family: var(--co-font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(to bottom, #fff, rgba(255,255,255,0.6));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

@media (min-width: 768px) {
  .co-stats__number { font-size: 2rem; }
}

.co-stats__number--accent {
  font-size: 2.5rem;
  background: linear-gradient(to bottom, var(--co-chart-1), rgba(91,106,191,0.6));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

@media (min-width: 768px) {
  .co-stats__number--accent { font-size: 3.75rem; }
}

.co-stats__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--co-muted-fg);
}

.co-stats__sublabel {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--co-muted-fg);
  margin-top: 0.25rem;
}

.co-stats__icon-wrap {
  padding: 1rem;
  background: rgba(46,52,72,0.2);
  border-radius: 50%;
  color: var(--co-secondary-fg);
  box-shadow: 0 0 20px rgba(46,52,72,0.2);
  transition: box-shadow var(--co-transition-slow);
}

.co-stats__item:hover .co-stats__icon-wrap {
  box-shadow: 0 0 30px rgba(46,52,72,0.4);
}

.co-stats__icon-wrap svg {
  width: 2rem;
  height: 2rem;
}

.co-stats__stars {
  display: flex;
  gap: 0.375rem;
}

.co-stats__stars svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--co-secondary-fg);
  fill: var(--co-secondary-fg);
}

/* --- 7. Algorithm Section --- */
.co-algo {
  padding: 8rem 0;
  overflow: hidden;
  position: relative;
}

.co-algo__blob-1 {
  position: absolute;
  top: 0;
  left: 25%;
  width: 384px;
  height: 384px;
  background: rgba(224,224,236,0.05);
  border-radius: 50%;
  filter: blur(80px);
  z-index: -1;
}

.co-algo__blob-2 {
  position: absolute;
  bottom: 0;
  right: 25%;
  width: 480px;
  height: 480px;
  background: rgba(124,124,154,0.05);
  border-radius: 50%;
  filter: blur(80px);
  z-index: -1;
}

.co-algo__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .co-algo__inner { grid-template-columns: 1fr 1fr; }
}

/* Phone mockup */
.co-algo__phone {
  position: relative;
  border-radius: 2.5rem;
  border: 1px solid var(--co-border);
  background: var(--co-card-40);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  box-shadow: var(--co-shadow-2xl);
  overflow: hidden;
  padding: 1rem;
  transition: transform 0.5s ease;
  max-width: 340px;
  margin: 0 auto;
}

.co-algo__phone:hover { transform: translateY(-8px); }

.co-algo__phone-screen {
  border-radius: 2rem;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.05);
  background: rgba(46,52,72,0.2);
  aspect-ratio: 9/19;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.co-algo__phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.co-algo__phone:hover .co-algo__phone-screen img {
  transform: scale(1.05);
}

.co-algo__phone-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top right, rgba(224,224,236,0.1), transparent, rgba(17,24,39,0.2));
  pointer-events: none;
}

.co-algo__phone-badge {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(17,24,39,0.9);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--co-border);
  padding: 0.75rem 1.5rem;
  border-radius: var(--co-radius-full);
  box-shadow: var(--co-shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: co-bounce 3s ease-in-out infinite;
  white-space: nowrap;
}

.co-algo__phone-badge svg { width: 1.25rem; height: 1.25rem; color: var(--co-ring); }

.co-algo__phone-badge span { font-size: 0.875rem; font-weight: 500; }

@keyframes co-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* Text content */
.co-algo__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.co-algo__title {
  font-family: var(--co-font-sans);
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.co-algo__lead {
  color: var(--co-muted-fg);
  font-size: 1.125rem;
  margin-bottom: 3rem;
  max-width: 32rem;
}

/* Steps */
.co-algo__steps {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  position: relative;
  margin-bottom: 3rem;
}

.co-algo__step {
  display: flex;
  gap: 1.5rem;
  position: relative;
}

.co-algo__step-line {
  position: absolute;
  left: 1.5rem;
  top: 3.5rem;
  bottom: -2.5rem;
  width: 2px;
  background: linear-gradient(to bottom, rgba(224,224,236,0.4), transparent);
  z-index: 0;
}

.co-algo__step:last-child .co-algo__step-line { display: none; }

.co-algo__step-num {
  position: relative;
  flex-shrink: 0;
  z-index: 10;
}

.co-algo__step-num-glow {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(124,124,154,0.2);
  filter: blur(8px);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.co-algo__step-circle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--co-primary);
  background: var(--co-bg);
  color: var(--co-primary);
  font-weight: 700;
  font-size: 1.125rem;
  box-shadow: var(--co-shadow-sm);
}

.co-algo__step-body { padding-top: 0.5rem; }

.co-algo__step-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.co-algo__step-text {
  color: var(--co-muted-fg);
  line-height: 1.6;
}

/* --- 8. Features Section --- */
.co-features {
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.co-features__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  display: flex;
}

.co-features__bg-left {
  width: 60%;
  height: 100%;
  background: rgba(91,106,191,0.08);
  clip-path: polygon(0 0, 100% 0, 80% 100%, 0 100%);
}

.co-features__bg-right {
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: rgba(160,132,94,0.08);
  clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
}

.co-features__inner {
  position: relative;
  z-index: 10;
}

.co-features__header {
  text-align: center;
  margin-bottom: 4rem;
}

.co-features__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.co-features__subtitle {
  font-size: 1.125rem;
  color: var(--co-muted-fg);
  max-width: 640px;
  margin: 0 auto;
}

.co-features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .co-features__grid { grid-template-columns: 1fr 1fr; }
}

/* Feature Card */
.co-feature-card {
  background: linear-gradient(145deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.02) 100%);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--co-radius-2xl);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.06);
  transition: transform var(--co-transition-slow), border-color var(--co-transition), box-shadow var(--co-transition-slow);
  position: relative;
  overflow: hidden;
}

.co-feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px 2px 0 0;
}

.co-feature-card:first-child::before {
  background: linear-gradient(90deg, #5b6abf, #7c8ec8);
}

.co-feature-card:last-child::before {
  background: linear-gradient(90deg, #a0845e, #c8a87a);
}

.co-feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,255,255,0.18);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.08);
}

.co-feature-card__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 1.5rem;
}

.co-feature-card__icon {
  padding: 0.875rem;
  border-radius: var(--co-radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
}

.co-feature-card__icon svg {
  width: 2rem;
  height: 2rem;
}

.co-feature-card__icon--blue {
  background: linear-gradient(135deg, rgba(91,106,191,0.25), rgba(91,106,191,0.1));
  color: #8b9fdb;
  box-shadow: 0 0 20px rgba(91,106,191,0.15);
  border: 1px solid rgba(91,106,191,0.2);
}

.co-feature-card__icon--amber {
  background: linear-gradient(135deg, rgba(160,132,94,0.25), rgba(160,132,94,0.1));
  color: #c8a87a;
  box-shadow: 0 0 20px rgba(160,132,94,0.15);
  border: 1px solid rgba(160,132,94,0.2);
}

.co-feature-card__title {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.co-feature-card__desc {
  color: var(--co-muted-fg);
  margin-top: 0.25rem;
}

.co-feature-card__list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  flex: 1;
}

.co-feature-card__list-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.co-feature-card__check {
  margin-top: 0.125rem;
  flex-shrink: 0;
  position: relative;
}

.co-feature-card__check svg {
  width: 1.5rem;
  height: 1.5rem;
  position: relative;
  z-index: 10;
}

.co-feature-card__check--blue svg { color: #8b9fdb; }
.co-feature-card__check--amber svg { color: #c8a87a; }

.co-feature-card__list-text {
  font-size: 1rem;
  line-height: 1.5;
  color: rgba(255,255,255,0.85);
}

.co-feature-card__footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* --- 9. CTA Section --- */
.co-cta {
  padding: 3rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --- 10. Footer --- */
.co-footer {
  position: relative;
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--co-border);
}

.co-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .co-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
  .co-footer__grid { grid-template-columns: auto 1fr 1fr 1fr; }
}

.co-footer__brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.co-footer__contacts {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.co-footer__contact-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.co-footer__contact-row svg {
  width: 1rem;
  height: 1rem;
  color: var(--co-primary);
  opacity: 0.9;
  flex-shrink: 0;
}

.co-footer__contact-row a {
  font-size: 0.875rem;
  transition: color var(--co-transition);
}

.co-footer__contact-row a:hover {
  color: var(--co-accent-fg);
  text-decoration: underline;
}

.co-footer__social {
  margin-top: 0.75rem;
}

.co-footer__social a {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  transition: color var(--co-transition);
}

.co-footer__social a:hover { color: var(--co-accent-fg); }

.co-footer__social-icon {
  width: 32px;
  height: 32px;
  background: var(--co-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--co-border);
  transition: background var(--co-transition);
}

.co-footer__social-icon:hover { background: var(--co-accent); }

.co-footer__social-icon svg { width: 1rem; height: 1rem; }

/* Payments */
.co-footer__payments {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.co-footer__payments-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  opacity: 0.5;
  letter-spacing: 0.05em;
}

.co-footer__payments-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.co-footer__payment-item {
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--co-radius-lg);
  padding: 0.5rem 0.75rem;
  border: 1px solid rgba(255,255,255,0.1);
  min-width: 72px;
  height: 44px;
  transition: background var(--co-transition), border-color var(--co-transition);
}

.co-footer__payment-item:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
}

.co-footer__payment-item--icon {
  padding: 0.35rem 0.5rem;
}

.co-footer__payment-item img {
  max-height: 32px;
  max-width: 64px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1);
  opacity: 0.6;
  transition: opacity var(--co-transition);
}

.co-footer__payment-item:hover img { opacity: 1; }

/* Footer links */
.co-footer__nav-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  color: var(--co-secondary-fg);
}

.co-footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.co-footer__nav-list a {
  font-size: 1rem;
  color: var(--co-muted-fg);
  transition: color var(--co-transition);
}

.co-footer__nav-list a:hover {
  color: var(--co-fg);
  text-decoration: underline;
  text-decoration-color: var(--co-accent);
  text-underline-offset: 4px;
}

/* Footer bottom */
.co-footer__bottom {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--co-border);
  text-align: center;
}

.co-footer__copy {
  font-size: 0.75rem;
  color: var(--co-muted-fg);
  letter-spacing: 0.03em;
}

/* FAB */
.co-fab {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 50;
}

.co-fab__btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--co-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--co-shadow-2xl), 0 0 20px rgba(46,52,72,0.2);
  transition: transform var(--co-transition), box-shadow var(--co-transition);
}

.co-fab__btn:hover {
  transform: scale(1.1);
  box-shadow: var(--co-shadow-2xl), 0 0 30px rgba(46,52,72,0.4);
}

.co-fab__btn:active { transform: scale(0.95); }

.co-fab__btn svg { width: 1.75rem; height: 1.75rem; color: #fff; }

/* --- 11. Modals --- */
.co-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.7);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.co-overlay.toggled {
  display: flex;
}

body.has-modal {
  overflow: hidden;
}

.co-modal {
  background: var(--co-card);
  border: 1px solid var(--co-border);
  border-radius: var(--co-radius-2xl);
  padding: 2.5rem 2rem;
  max-width: 420px;
  width: 100%;
  position: relative;
  box-shadow: var(--co-shadow-2xl);
}

.co-modal__logo {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.co-modal__logo img {
  height: 35px;
  width: auto;
}

.co-modal h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.co-modal p {
  color: var(--co-muted-fg);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.co-modal p a {
  color: var(--co-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.co-modal-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.co-input-container {
  width: 100%;
}

.co-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--co-border);
  border-radius: var(--co-radius-lg);
  color: var(--co-fg);
  font-size: 0.9375rem;
  font-family: var(--co-font-sans);
  transition: border-color var(--co-transition), box-shadow var(--co-transition);
  outline: none;
}

.co-input::placeholder { color: var(--co-muted-fg); }

.co-input:focus {
  border-color: var(--co-ring);
  box-shadow: 0 0 0 3px rgba(124,124,154,0.2);
}

.co-input-container.has-error .co-input {
  border-color: var(--co-destructive);
}

.co-input-container .message {
  color: var(--co-destructive);
  font-size: 0.8125rem;
  margin-top: 0.375rem;
}

.co-input-forgot {
  text-align: right;
}

.co-input-forgot a {
  font-size: 0.8125rem;
  color: var(--co-muted-fg);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--co-transition);
}

.co-input-forgot a:hover { color: var(--co-fg); }

.co-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.co-checkbox input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--co-border);
  border-radius: var(--co-radius-sm);
  background: transparent;
  flex-shrink: 0;
  margin-top: 0.125rem;
  cursor: pointer;
  transition: all var(--co-transition);
  position: relative;
}

.co-checkbox input[type="checkbox"]:checked {
  background: var(--co-primary);
  border-color: var(--co-primary);
}

.co-checkbox input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 6px;
  width: 5px;
  height: 10px;
  border: solid var(--co-primary-fg);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.co-checkbox-text {
  font-size: 0.875rem;
  color: var(--co-muted-fg);
  line-height: 1.4;
}

.co-checkbox-text a {
  color: var(--co-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* --- 12. Scroll Animations --- */
.co-animate {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.co-animate--left {
  transform: translateX(-24px);
}

.co-animate--right {
  transform: translateX(24px);
}

.co-animate.co-visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* --- 13. Dot Pattern Overlay --- */
.co-dot-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  pointer-events: none;
  background-image: radial-gradient(#fff 1px, transparent 1px);
  background-size: 20px 20px;
}

/* --- 14. Close button for modals --- */
.co-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--co-muted-fg);
  transition: all var(--co-transition);
}

.co-modal-close:hover {
  background: rgba(255,255,255,0.1);
  color: var(--co-fg);
}

.co-modal-close svg { width: 1.25rem; height: 1.25rem; }