:root {
  --bg: #ffffff;
  --bg-alt: #f5f7fc;
  --surface: #ffffff;
  --text: #1f2530;
  --muted: #4a5668;
  --primary: #0052cc;
  --primary-light: #3f679a;
  --primary-dark: #003d99;
  --secondary: #00b4ff;
  --secondary-light: #53b1de;
  --accent: #ff6b35;
  --border: #cfd7e3;
  --shadow: 0 10px 24px rgba(31, 37, 48, 0.08);
  --shadow-hover: 0 20px 40px rgba(0, 82, 204, 0.15);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.56;
}

.container {
  width: min(1140px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 2px solid var(--border);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  font-weight: 800;
  color: var(--primary);
  transition: 0.3s ease;
}

.brand:hover {
  color: var(--secondary);
}

.brand-mark {
  display: block;
  width: 24px;
  height: 24px;
  object-fit: cover;
  border-radius: 8px;
  background: linear-gradient(140deg, var(--secondary), var(--primary));
  box-shadow: 0 2px 8px rgba(0, 82, 204, 0.2);
  transition: 0.3s ease;
}

.brand:hover .brand-mark {
  box-shadow: 0 4px 12px rgba(0, 82, 204, 0.4);
  transform: rotate(2deg);
}

.main-nav {
  display: flex;
  gap: 28px;
}

.main-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: 0.2s ease;
  position: relative;
  padding: 0;
  border: none;
  background: none;
  display: inline;
}

.main-nav a:hover {
  color: var(--primary);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.3s ease;
}

.main-nav a:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  transition: 0.3s ease;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 4px 12px rgba(0, 82, 204, 0.2);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  box-shadow: 0 8px 20px rgba(0, 82, 204, 0.35);
  transform: translateY(-2px);
}

.btn-outline {
  color: var(--primary);
  border: 1px solid var(--accent);
  background: #fff;
}

.btn-outline:hover {
  background: var(--bg-alt);
}

.link-action {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
  padding: 8px 4px;
  border-bottom: 2px solid transparent;
  transition: 0.2s ease;
}

.link-action:hover {
  border-bottom-color: var(--secondary);
  color: var(--secondary-light);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--primary);
  text-decoration: none;
  font-weight: 700;
  line-height: 1;
  transition: 0.2s ease;
}

.lang-switch:hover {
  border-color: var(--primary);
  background: rgba(0, 82, 204, 0.08);
}

.hero {
  padding: 80px 0 50px;
  background: linear-gradient(135deg, var(--bg) 0%, rgba(232, 240, 255, 0.5) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 32px;
  align-items: stretch;
}

.kicker {
  margin: 0;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  font-weight: 800;
}

h1 {
  font-size: clamp(2rem, 3.5vw, 3.1rem);
  line-height: 1.14;
  margin: 12px 0 16px;
  color: var(--primary-dark);
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.hero-badges {
  margin-top: 16px;
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
}

.hero-badges span {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 600;
}

.hero-panel {
  background: white;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 8px 24px rgba(0, 82, 204, 0.12);
  backdrop-filter: blur(10px);
  transition: 0.3s ease;
}

.hero-panel:hover {
  box-shadow: 0 12px 32px rgba(0, 82, 204, 0.2);
  transform: translateY(-4px);
}

.hero-panel h2 {
  margin: 0 0 12px;
  font-size: 1.4rem;
  color: var(--primary);
}

.hero-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-panel ul {
  margin: 18px 0 0;
  padding-left: 24px;
  color: var(--text);
}

.hero-panel li {
  margin: 8px 0;
  font-weight: 500;
  color: var(--primary-dark);
}

.section {
  padding: 80px 0;
}

.section-alt {
  background: linear-gradient(180deg, var(--bg-alt) 0%, white 100%);
}

h2 {
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  margin: 0 0 12px;
  color: var(--primary-dark);
}

.section-sub {
  margin: 0 0 32px;
  color: var(--muted);
  max-width: 90ch;
  font-size: 1.05rem;
}

.cards {
  display: grid;
  gap: 20px;
}

.cards-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  background: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.card:hover::before {
  transform: scaleX(1);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.role-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mini-cta {
  margin-top: auto;
  text-align: center;
  text-decoration: none;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: 8px;
  padding: 12px 16px;
  transition: 0.3s ease;
  border: none;
  cursor: pointer;
}

.mini-cta:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  box-shadow: 0 6px 16px rgba(0, 82, 204, 0.4);
  transform: translateY(-2px);
}

.note-box {
  margin: 28px 0 0;
  border: 1px solid var(--secondary);
  background: linear-gradient(135deg, rgba(0, 180, 255, 0.08), rgba(0, 82, 204, 0.08));
  border-radius: var(--radius);
  color: var(--muted);
  padding: 18px 20px;
  font-size: 0.95rem;
}

.feature-card h3 {
  color: var(--primary);
}

.video-wrap {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  border: 3px solid var(--primary);
  transition: 0.3s ease;
}

.video-wrap:hover {
  box-shadow: 0 24px 48px rgba(0, 82, 204, 0.2);
}

.video-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: var(--radius);
}

.cta-strip {
  background: linear-gradient(135deg, 
    rgba(0, 82, 204, 0.08) 0%, 
    rgba(0, 180, 255, 0.08) 50%,
    rgba(255, 107, 53, 0.02) 100%);
  border-top: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cta-inner h2 {
  margin-bottom: 0;
}

.cta-inner p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer {
  border-top: 2px solid var(--primary);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  padding: 28px 0 20px;
}

.site-footer .footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 28px;
  font-size: 0.92rem;
  color: var(--muted);
}

.footer-brand h3,
.footer-column h4 {
  margin: 0 0 12px;
  color: var(--primary-dark);
}

.footer-brand p,
.footer-column p,
.footer-links {
  margin: 0;
}

.site-footer .footer-links {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 8px;
}

.footer-column a,
.footer-brand a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: 0.2s ease;
}

.footer-column a:hover,
.footer-brand a:hover {
  color: var(--secondary);
}

.footer-bottom {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.88rem;
}

.doc-page {
  padding: 72px 0 80px;
  background: linear-gradient(180deg, rgba(232, 240, 255, 0.4) 0%, rgba(255, 255, 255, 1) 100%);
}

.doc-shell {
  max-width: 980px;
  margin: 0 auto;
}

.doc-header {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 800;
  color: var(--primary);
}

.doc-header h1 {
  margin: 0 0 12px;
}

.doc-intro {
  margin: 0;
  max-width: 72ch;
  color: var(--muted);
  font-size: 1.06rem;
}

.doc-content {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(31, 37, 48, 0.05);
  padding: 28px clamp(20px, 3vw, 36px);
}

.doc-content section + section {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.doc-content h2 {
  margin: 0 0 12px;
  font-size: clamp(1.2rem, 1.6vw, 1.45rem);
  color: var(--primary-dark);
}

.doc-content p,
.doc-content li {
  color: var(--text);
  line-height: 1.7;
}

.doc-content ul {
  margin: 10px 0 0 18px;
  padding-left: 18px;
}

.footer-bottom a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.footer-bottom a:hover {
  color: var(--secondary);
}

@media (max-width: 1080px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 12px 0;
  }

  .main-nav {
    order: 3;
    width: 100%;
    gap: 16px;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 4px;
  }

  .hero {
    padding: 60px 0 40px;
  }

  .section {
    padding: 60px 0;
  }

  .main-nav a {
    flex: 0 0 auto;
  }

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

  .cards-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .header-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .cards-3 {
    grid-template-columns: 1fr;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}