.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(7, 20, 51, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(7, 20, 51, 0.98);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.header-inner {
  max-width: calc(var(--max) + 48px);
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 220px 1fr auto;
  align-items: center;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img,
.logo svg {
  height: 46px;
  width: auto;
  max-width: 210px;
  object-fit: contain;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 6px;
}

.nav a {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.nav a:hover,
.nav a.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.nav a.is-active,
.nav-link.is-active {
  background: #fff;
  color: var(--color-night);
}

.has-menu {
  position: relative;
}

.nav-link {
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  padding: 8px 14px;
  border: 0;
  background: transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
}

.nav-link:hover,
.has-menu.is-open .nav-link {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.submenu {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 260px;
  padding: 10px;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-soft);
  z-index: 50;
}

.has-menu.is-open .submenu {
  display: grid;
  gap: 4px;
}

.submenu a {
  color: var(--color-navy);
  border-radius: 12px;
  padding: 10px 12px;
}

.submenu a:hover,
.submenu a.is-active {
  background: var(--color-alt);
  color: var(--color-navy);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  position: relative;
  color: #fff;
}

.menu-toggle {
  display: none;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

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

.section-intro {
  text-align: center;
}

.section-intro .services-grid {
  text-align: left;
  margin-top: 12px;
}

.areas-band {
  background:
    radial-gradient(circle at 20% 40%, rgba(0, 99, 247, 0.18), transparent 28%),
    radial-gradient(circle at 80% 70%, rgba(122, 46, 230, 0.16), transparent 30%),
    var(--color-night);
  color: #fff;
  text-align: center;
  padding: 72px 0;
}

.areas-band h2 {
  color: #fff;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.gold-rule {
  display: block;
  width: 64px;
  height: 3px;
  margin: 0 auto 28px;
  background: var(--color-mustard);
  border-radius: 99px;
}

.areas-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.hero {
  min-height: 100vh;
  margin-top: 0;
  padding-top: var(--header-h);
  position: relative;
  display: grid;
  align-items: center;
  color: #fff;
  overflow: hidden;
}

.hero-media,
.hero-overlay,
.hero-brand,
.hero-network {
  position: absolute;
  inset: 0;
}

.hero-media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.28;
  transform: scale(1.04);
}

.hero-overlay {
  background: var(--gradient-hero);
}

.hero-network {
  background-image:
    radial-gradient(circle at 18% 42%, rgba(90, 170, 255, 0.28) 0 3px, transparent 4px),
    radial-gradient(circle at 62% 38%, rgba(122, 46, 230, 0.22) 0 2px, transparent 3px),
    radial-gradient(circle at 78% 58%, rgba(35, 147, 113, 0.22) 0 2px, transparent 3px),
    radial-gradient(rgba(160, 200, 255, 0.22) 1px, transparent 1.5px);
  background-size: auto, auto, auto, 34px 34px;
}

.hero-brand {
  background: url("../assets/brand/banner-2.png") right center / cover no-repeat;
  opacity: 0.22;
  mix-blend-mode: screen;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding: 88px 0 140px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  width: 100%;
  height: 90px;
  z-index: 2;
}

.hero h1,
.hero p {
  color: #fff;
}

.hero h1 {
  letter-spacing: -0.02em;
}

.hero p {
  max-width: 58ch;
  color: rgba(255, 255, 255, 0.86);
}

.hero .overline {
  color: #c9b6ff;
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.split img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  border-radius: 24px;
}

.services-grid,
.courses-grid,
.news-grid,
.stats-grid {
  display: grid;
  gap: 24px;
}

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

.courses-grid {
  grid-template-columns: repeat(4, 1fr);
}

.news-grid,
.stats-grid {
  grid-template-columns: repeat(4, 1fr);
}

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

.site-footer {
  background: linear-gradient(180deg, #0b1c3d 0%, #275b68 100%);
  color: #fff;
  padding: 72px 0 28px;
}

.footer-presence {
  text-align: center;
  padding-bottom: 48px;
  margin-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-presence h2,
.footer-presence p,
.footer-presence .overline {
  color: #fff;
}

.footer-presence .overline {
  color: #ffd27a;
}

.footer-presence p {
  max-width: 640px;
  margin: 0 auto 28px;
  color: rgba(255, 255, 255, 0.78);
}

.countries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
}

.site-footer a,
.site-footer p,
.site-footer h3 {
  color: #fff;
}

.site-footer h3 {
  font-size: 18px;
  margin-bottom: 16px;
}

.footer-bottom {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
  opacity: 0.85;
}

.drawer,
.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  visibility: hidden;
  pointer-events: none;
}

.drawer.is-open,
.modal.is-open {
  visibility: visible;
  pointer-events: auto;
}

.backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 8, 59, 0.45);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.drawer.is-open .backdrop,
.modal.is-open .backdrop {
  opacity: 1;
}

.drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(420px, 100%);
  height: 100%;
  background: #fff;
  padding: 28px;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
  overflow: auto;
}

.drawer.is-open .drawer-panel {
  transform: none;
}

.modal-panel {
  position: relative;
  width: min(440px, calc(100% - 32px));
  margin: 12vh auto;
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  transform: translateY(16px);
  opacity: 0;
  transition: 0.3s var(--ease);
}

.modal.is-open .modal-panel {
  transform: none;
  opacity: 1;
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 80;
  background: var(--color-navy);
  color: #fff;
  padding: 14px 18px;
  border-radius: 14px;
  transform: translateY(120%);
  transition: transform 0.3s var(--ease);
}

.toast.is-visible {
  transform: none;
}

@media (max-width: 1080px) {
  .courses-grid,
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-night);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 10px;
  }

  .nav.is-open {
    display: flex;
  }

  .has-menu {
    width: 100%;
  }

  .submenu {
    position: static;
    box-shadow: none;
    background: rgba(255, 255, 255, 0.06);
    margin-top: 8px;
  }

  .submenu a {
    color: #fff;
  }

  .submenu a:hover,
  .submenu a.is-active {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
  }

  .menu-toggle {
    display: grid;
    place-items: center;
  }

  .split,
  .services-grid,
  .news-grid,
  .footer-grid,
  .footer-bottom {
    grid-template-columns: 1fr;
  }

  .split img {
    height: 280px;
  }
}

@media (max-width: 640px) {
  .courses-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 72px 0;
  }
}