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

:root {
  color-scheme: dark;
  --bg: #020617;
  --panel: rgba(2, 12, 27, 0.82);
  --panel-strong: rgba(4, 20, 39, 0.94);
  --text: #f8fafc;
  --muted: #b6c4d5;
  --cyan: #38bdf8;
  --cyan-soft: #67e8f9;
  --line: rgba(148, 163, 184, 0.24);
  --max: 1440px;
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 70% 0%, rgba(14, 116, 144, 0.22), transparent 36rem),
    linear-gradient(180deg, #020617 0%, #03111f 48%, #020617 100%);
  color: var(--text);
  line-height: 1.55;
}

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

button, input, textarea, select { font: inherit; }

button { cursor: pointer; }

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

.site-header {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.1rem clamp(1rem, 4vw, 3rem);
  background: linear-gradient(180deg, rgba(2, 6, 23, 0.86), rgba(2, 6, 23, 0));
  backdrop-filter: blur(8px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  letter-spacing: 0.32em;
}

.brand strong { font-size: clamp(1rem, 2vw, 1.35rem); }

.brand strong span { color: var(--cyan); }

.brand small {
  display: block;
  margin-top: 0.1rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 2.4rem;
  height: 2.4rem;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  position: relative;
  flex: 0 0 auto;
}

.brand-mark::after {
  content: "";
  position: absolute;
  width: 3.2rem;
  height: 0.18rem;
  background: var(--cyan-soft);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-28deg);
  border-radius: 99rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 2rem);
  font-size: 0.9rem;
  text-transform: uppercase;
}

.site-nav a,
.site-nav button {
  color: var(--text);
  background: transparent;
  border: 0;
  text-transform: uppercase;
}

.nav-cta,
.button {
  background: linear-gradient(135deg, #0284c7, #0891b2) !important;
  border: 1px solid rgba(125, 211, 252, 0.28) !important;
  box-shadow: 0 10px 30px rgba(14, 165, 233, 0.2);
  border-radius: 0.65rem;
  padding: 0.8rem 1.1rem;
  font-weight: 750;
  color: white;
}

.menu-toggle { display: none; }

.hero {
  min-height: 100svh;
  position: relative;
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero picture,
.hero picture img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero picture img {
  object-fit: cover;
  object-position: 60% center;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 6, 23, 0.98) 0%, rgba(2, 6, 23, 0.82) 22%, rgba(2, 6, 23, 0.22) 52%, rgba(2, 6, 23, 0.1) 100%),
    linear-gradient(180deg, rgba(2, 6, 23, 0.24), rgba(2, 6, 23, 0.78));
}

.hero-content {
  position: relative;
  max-width: 42rem;
  padding: 8rem clamp(1.25rem, 5vw, 4rem) 4rem;
}

.eyebrow {
  color: var(--cyan-soft);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.8rem;
  font-weight: 750;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  font-size: clamp(4rem, 11vw, 8.8rem);
  line-height: 0.92;
  margin-bottom: 1rem;
  letter-spacing: -0.06em;
}

.tagline {
  color: var(--cyan);
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 750;
  margin-bottom: 1.25rem;
}

.summary {
  color: #e5edf7;
  max-width: 37rem;
  font-size: clamp(1rem, 2vw, 1.16rem);
}

.button {
  display: inline-block;
  margin-top: 1.2rem;
  text-transform: uppercase;
}

.note {
  margin-top: 1rem;
  color: var(--muted);
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 4vw, 3rem);
}

.section-title {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 2rem;
  text-align: center;
}

.section-title span {
  height: 1px;
  background: var(--line);
}

.section-title h2 {
  margin: 0;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: clamp(0.95rem, 2vw, 1.15rem);
}

.cards {
  display: grid;
  gap: 1rem;
}

.cards-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 0.85rem;
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0,0,0,0.24);
}

.card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.card div {
  padding: 1.2rem;
}

.card h3 {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

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

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.feature-list li {
  padding: 0.45rem 0 0.45rem 1.8rem;
  position: relative;
  color: #dbeafe;
}

.feature-list li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--cyan);
}

.rounded-media,
.mini-gallery img {
  border-radius: 0.85rem;
  border: 1px solid var(--line);
}

.safety-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
}

.safety-grid p,
.safety-grid li {
  color: var(--muted);
}

.mini-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  align-items: stretch;
}

.mini-gallery img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem clamp(1rem, 4vw, 3rem);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  max-width: var(--max);
  margin: 0 auto;
}

.site-footer blockquote {
  margin: 0;
  color: var(--cyan-soft);
  font-size: 1.25rem;
  font-style: italic;
}

@media (max-width: 980px) {
  .menu-toggle {
    display: inline-flex;
    border: 1px solid var(--line);
    border-radius: 0.55rem;
    padding: 0.65rem 0.85rem;
    color: var(--text);
    background: rgba(2,6,23,0.75);
  }

  .site-nav {
    position: absolute;
    right: 1rem;
    top: 4.8rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    min-width: 16rem;
    background: var(--panel-strong);
    border: 1px solid var(--line);
    border-radius: 0.8rem;
    padding: 1rem;
  }

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

  .cards-four,
  .split,
  .safety-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero picture img {
    object-position: 70% center;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 0.9rem 1rem;
  }

  .brand {
    letter-spacing: 0.18em;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 760px;
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(2, 6, 23, 0.82) 0%, rgba(2, 6, 23, 0.64) 42%, rgba(2, 6, 23, 0.96) 100%),
      linear-gradient(90deg, rgba(2, 6, 23, 0.94), rgba(2, 6, 23, 0.24));
  }

  .hero picture img {
    object-position: 76% center;
  }

  h1 {
    font-size: clamp(3.3rem, 17vw, 5rem);
  }

  .section-title {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .section-title span {
    display: none;
  }

  .cards-four,
  .split,
  .safety-grid,
  .mini-gallery {
    grid-template-columns: 1fr;
  }

  .mini-gallery img {
    aspect-ratio: 16 / 10;
  }

  .site-footer {
    flex-direction: column;
  }
}