/* CUCL — единая дизайн-система (палитра как /home/) */

:root,
[data-theme='light'] {
  --cucl-bg: #f2f4f6;
  --cucl-bg2: #e8ecef;
  --cucl-panel: #f8f9fb;
  --cucl-panel-h: #eef1f4;
  --cucl-ink: #2f3439;
  --cucl-muted: #5c6570;
  --cucl-line: #dde2e8;
  --cucl-acc: #3d9468;
  --cucl-acc2: #357a58;
  --cucl-cyan: #5a9f7a;
  --cucl-glow: rgba(61, 148, 104, 0.18);
  --cucl-sh: 0 6px 22px rgba(20, 24, 32, 0.06);
  --cucl-rad: 16px;
  --cucl-w: 1140px;
  --cucl-nav-h: 72px;
  --cucl-marquee-bg: #e8ecef;
  --cucl-mesh: none;
  color-scheme: light;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--cucl-ink);
  background: var(--cucl-bg);
  transition: background 0.25s, color 0.25s;
}

a { color: var(--cucl-acc2); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.cucl-wrap {
  max-width: var(--cucl-w);
  margin: 0 auto;
  padding: 0 22px;
}

/* Scroll progress */
.cucl-scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  z-index: 9999;
  background: linear-gradient(90deg, var(--cucl-acc), #6aab88);
  box-shadow: none;
  opacity: 0.85;
  pointer-events: none;
}

/* Navigation */
.cucl-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--cucl-nav-h);
  display: flex;
  align-items: center;
  background: rgba(248, 249, 251, 0.92);
  border-bottom: 1px solid var(--cucl-line);
  backdrop-filter: blur(16px);
}

.cucl-nav .cucl-wrap {
  display: flex;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.cucl-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--cucl-ink);
  flex-shrink: 0;
}

.cucl-brand:hover { text-decoration: none; }

.cucl-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--cucl-acc), #5a9f7a);
  display: grid;
  place-items: center;
  box-shadow: 0 2px 8px rgba(61, 148, 104, 0.18);
}

.cucl-logo img {
  width: 24px;
  height: 24px;
  filter: brightness(0) invert(1);
}

.cucl-brand-text strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.cucl-brand-text span {
  display: block;
  font-size: 11px;
  color: var(--cucl-muted);
  font-weight: 500;
}

.cucl-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.cucl-nav-links a {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--cucl-muted);
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
}

.cucl-nav-links a:hover,
.cucl-nav-links a.is-active {
  color: var(--cucl-ink);
  background: var(--cucl-bg2);
  text-decoration: none;
}

.cucl-nav-products {
  position: relative;
}

.cucl-nav-products > button {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: none;
  border-radius: 10px;
  background: transparent;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--cucl-muted);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.cucl-nav-products > button:hover,
.cucl-nav-products.open > button {
  color: var(--cucl-ink);
  background: var(--cucl-bg2);
}

.cucl-nav-products > button svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
}

.cucl-nav-products.open > button svg { transform: rotate(180deg); }

.cucl-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 280px;
  padding: 8px;
  background: var(--cucl-panel);
  border: 1px solid var(--cucl-line);
  border-radius: var(--cucl-rad);
  box-shadow: var(--cucl-sh);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}

.cucl-nav-products.open .cucl-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cucl-dropdown a {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--cucl-ink);
  transition: background 0.2s;
}

.cucl-dropdown a:hover {
  background: var(--cucl-panel-h);
  text-decoration: none;
}

.cucl-dropdown-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: #e6f0ea;
  border: 1px solid #c5dccf;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.cucl-dropdown-icon img,
.cucl-product-icon img,
.cucl-social-icon img,
.cucl-principle-icon img,
.cucl-eco-item img {
  display: block;
  object-fit: contain;
  filter: none;
  opacity: 1;
}

.cucl-dropdown-text strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
}

.cucl-dropdown-text span {
  display: block;
  font-size: 12px;
  color: var(--cucl-muted);
  margin-top: 2px;
}

.cucl-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
}

.cucl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.cucl-btn:hover { text-decoration: none; transform: translateY(-1px); }

.cucl-btn-primary {
  background: var(--cucl-acc);
  color: #fff;
  box-shadow: 0 2px 10px rgba(61, 148, 104, 0.22);
}

.cucl-btn-ghost {
  background: var(--cucl-panel);
  border: 1px solid var(--cucl-line);
  color: var(--cucl-ink);
}

.cucl-btn-icon { display: none !important; }

.cucl-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 10px;
  border: 1px solid var(--cucl-line);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
}

.cucl-burger span {
  display: block;
  height: 2px;
  background: var(--cucl-ink);
  border-radius: 2px;
}

.cucl-mobile-menu {
  position: fixed;
  inset: var(--cucl-nav-h) 0 0 0;
  z-index: 999;
  background: var(--cucl-bg);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.3s;
}

.cucl-mobile-menu.open { transform: translateX(0); }

.cucl-mobile-menu a {
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--cucl-ink);
  text-decoration: none;
}

.cucl-mobile-menu a:hover { background: var(--cucl-panel); text-decoration: none; }

.cucl-mobile-label {
  padding: 12px 16px 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cucl-muted);
}

/* Hero */
.cucl-hero {
  position: relative;
  padding: 88px 0 72px;
  overflow: hidden;
}

.cucl-hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 148, 104, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 148, 104, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 20%, transparent 75%);
  pointer-events: none;
}

.cucl-hero-orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.cucl-hero-orbs span {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  animation: cucl-orb-float 14s ease-in-out infinite;
}

.cucl-hero-orbs span:nth-child(1) {
  width: 320px; height: 320px;
  top: -80px; left: -60px;
  background: rgba(61, 148, 104, 0.18);
}

.cucl-hero-orbs span:nth-child(2) {
  width: 260px; height: 260px;
  top: 10%; right: -40px;
  background: rgba(90, 159, 122, 0.12);
  animation-delay: -5s;
}

.cucl-hero-orbs span:nth-child(3) {
  width: 200px; height: 200px;
  bottom: 0; left: 35%;
  background: rgba(53, 122, 88, 0.12);
  animation-delay: -9s;
}

@keyframes cucl-orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(12px, -18px) scale(1.06); }
}

.cucl-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--cucl-mesh);
  pointer-events: none;
}

.cucl-hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.cucl-badge {
  display: inline-flex;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cucl-acc2);
  background: #e6f0ea;
  border: 1px solid #c5dccf;
  margin-bottom: 20px;
}

.cucl-hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.cucl-hero h1 .gradient {
  color: inherit;
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}

.cucl-lead {
  margin: 0 0 28px;
  font-size: 18px;
  color: var(--cucl-muted);
  max-width: 540px;
}

.cucl-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Sections */
.cucl-section {
  padding: 88px 0;
  position: relative;
  opacity: 0.88;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.cucl-section.is-inview {
  opacity: 1;
  transform: translateY(0);
}

.cucl-section--alt {
  background: var(--cucl-bg2);
}

.cucl-hero:has(+ .cucl-bridge) {
  padding-bottom: 48px;
}

.cucl-section:has(+ .cucl-bridge) {
  padding-bottom: 40px;
}

.cucl-section:has(+ .cucl-bridge)::after {
  display: none;
}

.cucl-bridge + .cucl-section,
.cucl-bridge + main > .cucl-section:first-child {
  padding-top: 56px;
}

/* Волнистые переходы между секциями */
.cucl-bridge {
  position: relative;
  height: clamp(56px, 9vw, 88px);
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.cucl-bridge--to-alt,
.cucl-bridge--to-marquee {
  background: var(--cucl-bg);
}

.cucl-bridge--to-base {
  background: var(--cucl-bg2);
}

.cucl-bridge--from-marquee {
  background: var(--cucl-marquee-bg);
}

.cucl-bridge--to-alt .cucl-bridge__wave path { fill: var(--cucl-bg2); }
.cucl-bridge--to-base .cucl-bridge__wave path { fill: var(--cucl-bg); }
.cucl-bridge--to-marquee .cucl-bridge__wave path { fill: var(--cucl-marquee-bg); }
.cucl-bridge--from-marquee .cucl-bridge__wave path { fill: var(--cucl-bg); }

.cucl-bridge__wave {
  position: absolute;
  inset: auto 0 0;
  width: 100%;
  height: 100%;
  display: block;
}

.cucl-bridge__wave path {
  transition: fill 0.3s ease;
}

.cucl-bridge__arc {
  position: absolute;
  bottom: 22%;
  width: min(170px, 20vw);
  height: auto;
  opacity: 0.7;
  color: var(--cucl-acc);
}

.cucl-bridge__arc path {
  stroke: currentColor;
  stroke-opacity: 0.32;
}

.cucl-bridge__arc--left {
  left: max(5%, calc(50% - 300px));
}

.cucl-bridge__arc--right {
  right: max(5%, calc(50% - 300px));
}

@media (max-width: 640px) {
  .cucl-bridge__arc { display: none; }
  .cucl-bridge { height: 48px; }
}

.cucl-section-divider {
  height: 1px;
  max-width: min(720px, 90%);
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, rgba(61, 148, 104, 0.45), rgba(90, 159, 122, 0.35), transparent);
  opacity: 0.55;
}

.cucl-section::after {
  display: none;
}

.cucl-section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.cucl-section-head h2 {
  margin: 0 0 14px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.cucl-section-head p {
  margin: 0;
  color: var(--cucl-muted);
  font-size: 17px;
}

/* Product cards */
.cucl-products {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.cucl-product-card {
  position: relative;
  padding: 28px;
  border-radius: var(--cucl-rad);
  background: var(--cucl-panel);
  border: 1px solid var(--cucl-line);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.cucl-product-card:hover {
  border-color: rgba(61, 148, 104, 0.28);
  background: var(--cucl-panel-h);
  text-decoration: none;
}

.cucl-product-card::before { display: none; }

.cucl-product-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(61, 148, 104, 0.1);
  border: 1px solid rgba(61, 148, 104, 0.16);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}

.cucl-product-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
}

.cucl-product-card p {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--cucl-muted);
  line-height: 1.55;
}

.cucl-product-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--cucl-acc2);
  transition: color 0.2s;
}

.cucl-product-card:hover .cucl-product-link { color: var(--cucl-cyan); }

/* Principles (replaces team cards) */
.cucl-principles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.cucl-principle {
  padding: 24px 20px;
  border-radius: var(--cucl-rad);
  background: var(--cucl-panel);
  border: 1px solid var(--cucl-line);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease, border-color 0.25s;
}

.cucl-stagger > .cucl-principle.is-visible,
.cucl-principle.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.cucl-principle-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(61, 148, 104, 0.1);
  border: 1px solid rgba(61, 148, 104, 0.14);
  display: grid;
  place-items: center;
  margin-bottom: 14px;
}

.cucl-principle h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
}

.cucl-principle p {
  margin: 0;
  font-size: 13px;
  color: var(--cucl-muted);
  line-height: 1.5;
}

/* Hero ecosystem grid */
.cucl-eco-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 360px;
  margin: 0 auto;
}

.cucl-eco-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: 14px;
  background: var(--cucl-panel);
  border: 1px solid var(--cucl-line);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.25s, background 0.25s;
  animation: cucl-eco-pulse 4s ease-in-out infinite;
}

.cucl-eco-item:nth-child(2) { animation-delay: -1s; }
.cucl-eco-item:nth-child(3) { animation-delay: -2s; }
.cucl-eco-item:nth-child(4) { animation-delay: -3s; }

.cucl-eco-item:hover {
  border-color: rgba(61, 148, 104, 0.3);
  background: var(--cucl-panel-h);
  text-decoration: none;
}

.cucl-eco-item img { width: 32px; height: 32px; flex-shrink: 0; }

.cucl-eco-item strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
}

.cucl-eco-item span {
  display: block;
  font-size: 11px;
  color: var(--cucl-muted);
}

@keyframes cucl-eco-pulse {
  0%, 100% { box-shadow: 0 0 0 rgba(61, 148, 104, 0); }
  50% { box-shadow: 0 0 24px rgba(61, 148, 104, 0.08); }
}

.cucl-marquee {
  overflow: hidden;
  background: var(--cucl-marquee-bg);
  padding: 14px 0;
  border: none;
  margin: 0;
}

.cucl-marquee__track {
  display: flex;
  gap: 40px;
  width: max-content;
  animation: cucl-marquee 28s linear infinite;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cucl-muted);
}

.cucl-marquee__track span::before {
  content: '◆';
  margin-right: 40px;
  color: var(--cucl-acc);
  font-size: 8px;
  vertical-align: middle;
}

@keyframes cucl-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Social / news */
.cucl-social-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.cucl-social-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border-radius: var(--cucl-rad);
  background: var(--cucl-panel);
  border: 1px solid var(--cucl-line);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.25s, background 0.25s;
}

.cucl-social-card:hover {
  border-color: rgba(61, 148, 104, 0.28);
  background: var(--cucl-panel-h);
  text-decoration: none;
}

.cucl-social-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(61, 148, 104, 0.1);
  border: 1px solid rgba(61, 148, 104, 0.14);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.cucl-social-card strong {
  display: block;
  font-size: 14px;
}

.cucl-social-card span {
  display: block;
  font-size: 12px;
  color: var(--cucl-muted);
  margin-top: 2px;
}

/* Contacts */
.cucl-contacts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.cucl-person {
  padding: 28px;
  border-radius: var(--cucl-rad);
  background: var(--cucl-panel);
  border: 1px solid var(--cucl-line);
}

.cucl-person h3 {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 700;
}

.cucl-person-links {
  display: grid;
  gap: 12px;
}

.cucl-person-links div small {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--cucl-muted);
  margin-bottom: 2px;
}

/* Footer */
.cucl-footer {
  padding: 40px 0;
  border-top: none;
  background: var(--cucl-bg2);
}

.cucl-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 12px;
}

.cucl-footer-brand p {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--cucl-muted);
  max-width: 280px;
}

.cucl-footer-col h4 {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cucl-muted);
}

.cucl-footer-col a {
  display: block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--cucl-ink);
  text-decoration: none;
}

.cucl-footer-col a:hover { color: var(--cucl-acc2); text-decoration: none; }

.cucl-footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding-top: 0;
  margin-top: 4px;
  border-top: none;
  font-size: 13px;
  color: var(--cucl-muted);
}

.cucl-footer-bottom a { color: var(--cucl-muted); }

/* Reveal animation */
.cucl-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.cucl-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 960px) {
  .cucl-hero-inner { grid-template-columns: 1fr; }
  .cucl-products { grid-template-columns: 1fr; }
  .cucl-principles { grid-template-columns: repeat(2, 1fr); }
  .cucl-social-grid { grid-template-columns: 1fr; }
  .cucl-footer-grid { grid-template-columns: 1fr 1fr; }
  .cucl-contacts { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .cucl-nav-links,
  .cucl-nav-actions .cucl-btn-primary { display: none; }
  .cucl-burger { display: flex; }
  .cucl-principles { grid-template-columns: 1fr; }
  .cucl-footer-grid { grid-template-columns: 1fr; }
}