:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --ink: #172336;
  --muted: #5a667a;
  --primary: #006d77;
  --accent: #ff6b35;
  --highlight: #00b4d8;
  --line: #dbe3ef;
  --shadow: 0 20px 45px rgba(23, 35, 54, 0.12);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% 0%, rgba(0, 180, 216, 0.14), transparent 42%),
    radial-gradient(circle at 100% 20%, rgba(255, 107, 53, 0.1), transparent 35%),
    var(--bg);
  color: var(--ink);
  line-height: 1.65;
}

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

a:hover {
  color: var(--accent);
}

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

.vlm-wrap {
  width: min(1120px, calc(100% - 2.2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(247, 249, 252, 0.86);
  border-bottom: 1px solid rgba(219, 227, 239, 0.8);
}

.vlm-header-grid {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem 0;
}

.site-title {
  font-family: "Archivo Black", sans-serif;
  font-size: 1.25rem;
  letter-spacing: 0.03em;
}

.site-tagline {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  font-weight: 600;
}

.main-nav a:hover {
  background: rgba(0, 180, 216, 0.14);
}

.main-nav .menu {
  position: relative;
}

.main-nav .menu-item-has-children {
  position: relative;
}

.main-nav .menu-item-has-children > a {
  padding-right: 1.9rem;
}

.main-nav .sub-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.25rem;
  padding: 0.5rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 50;
}

.main-nav .sub-menu .sub-menu {
  top: -0.5rem;
  left: calc(100% + 0.45rem);
}

.main-nav .menu > .menu-item-has-children.submenu-flip > .sub-menu {
  left: auto;
  right: 0;
}

.main-nav .sub-menu .menu-item-has-children.submenu-flip > .sub-menu {
  left: auto;
  right: calc(100% + 0.45rem);
}

.main-nav .menu-item-has-children:hover > .sub-menu,
.main-nav .menu-item-has-children:focus-within > .sub-menu,
.main-nav .menu-item-has-children.submenu-open > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav .sub-menu a {
  width: 100%;
  border-radius: 10px;
}

.submenu-toggle {
  display: none;
  position: absolute;
  top: 50%;
  right: 0.35rem;
  transform: translateY(-50%);
  width: 1.2rem;
  height: 1.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0;
  cursor: pointer;
}

.submenu-toggle::before {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  margin-top: -0.12rem;
  transition: transform 0.2s ease;
}

.menu-item-has-children.submenu-open > .submenu-toggle::before {
  transform: rotate(-135deg);
  margin-top: 0.14rem;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 10px;
  padding: 0.55rem 0.8rem;
  font-weight: 600;
  color: var(--ink);
}

.hero {
  padding: 4.4rem 0 2rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: stretch;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 0.85rem;
}

.hero h1 {
  font-family: "Archivo Black", sans-serif;
  line-height: 1.05;
  font-size: clamp(2.1rem, 4vw, 3.5rem);
  margin: 0;
}

.hero p {
  color: var(--muted);
  margin: 1rem 0 0;
  max-width: 56ch;
}

.hero-actions {
  display: flex;
  gap: 0.85rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: 14px;
  padding: 0.75rem 1rem;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(140deg, var(--accent), #ff946d);
  color: #fff;
  box-shadow: 0 14px 24px rgba(255, 107, 53, 0.28);
}

.btn-ghost {
  border: 1px solid var(--line);
  background: var(--surface);
}

.hero-panel {
  background: linear-gradient(160deg, #003844 0%, #005f73 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.hero-panel h2 {
  margin-top: 0.25rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.stat-card {
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  padding: 0.8rem;
}

.stat-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.85rem;
}

.stat-card strong {
  display: block;
  margin-top: 0.2rem;
  font-size: 1.55rem;
}

.section {
  padding: 1.7rem 0 2rem;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-head h1,
.section-head h2 {
  margin: 0;
  font-family: "Archivo Black", sans-serif;
  line-height: 1.15;
}

.card.surface {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem;
  box-shadow: var(--shadow);
  overflow-x: auto;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.news-card {
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: 0 14px 24px rgba(23, 35, 54, 0.08);
  transition: transform 0.3s ease;
}

.news-card:hover {
  transform: translateY(-4px);
}

.thumb-link {
  display: block;
  aspect-ratio: 16/10;
  background: linear-gradient(120deg, #d7ecf0, #ffdccc);
}

.thumb-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-content {
  padding: 1rem;
}

.news-content h2,
.news-content h3 {
  margin: 0.35rem 0;
  font-size: 1.2rem;
  line-height: 1.2;
}

.meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.prose {
  max-width: 860px;
}

.prose h1,
.prose h2,
.prose h3 {
  font-family: "Archivo Black", sans-serif;
  line-height: 1.2;
}

.prose article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.feature-image {
  border-radius: 16px;
  overflow: hidden;
  margin: 1rem 0;
}

.site-footer {
  margin-top: 3rem;
  background: #0f1f38;
  color: #d6deea;
}

.vlm-footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 1rem;
  padding: 2.4rem 0;
}

.site-footer h3 {
  margin: 0;
  color: #fff;
}

.site-footer nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer nav li + li {
  margin-top: 0.45rem;
}

.site-footer a {
  color: #f2f7ff;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

.screen-reader-text {
  position: absolute;
  left: -9999px;
}

@media (max-width: 980px) {
  .hero-grid,
  .news-grid,
  .vlm-footer-grid {
    grid-template-columns: 1fr;
  }

  .vlm-header-grid {
    grid-template-columns: 1fr auto;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    grid-column: 1 / -1;
    display: none;
  }

  .main-nav.is-open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 0.5rem;
    gap: 0.25rem;
    width: 100%;
  }

  .main-nav .menu-item-has-children {
    width: 100%;
  }

  .main-nav .menu-item-has-children > a {
    display: inline-flex;
    width: 100%;
    padding-right: 2rem;
  }

  .main-nav .sub-menu,
  .main-nav .sub-menu .sub-menu {
    position: static;
    min-width: 0;
    display: none;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    padding: 0 0 0 0.7rem;
    margin: 0.25rem 0;
  }

  .main-nav .menu-item-has-children.submenu-open > .sub-menu {
    display: flex;
  }

  .main-nav .submenu-toggle {
    display: inline-flex;
    right: 0;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

  .hero {
    padding-top: 2.5rem;
  }
}