* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-dark: #040707;
  --green-deep: #123b35;
  --green-soft: #2f7b6e;
  --text-main: #ecf6f3;
  --text-soft: #c9d8d4;
  --card-bg: rgba(9, 22, 20, 0.68);
  --line: rgba(150, 209, 195, 0.35);
}

body {
  font-family: "Inter", "Segoe UI", sans-serif;
  color: var(--text-main);
  background: linear-gradient(140deg, var(--green-deep), var(--bg-dark));
  min-height: 100vh;
  line-height: 1.65;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("https://images.unsplash.com/photo-1455390582262-044cdead277a?auto=format&fit=crop&w=1600&q=80");
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, rgba(14, 52, 45, 0.8), rgba(2, 7, 7, 0.88));
  z-index: -1;
}

.banner,
main,
footer {
  width: min(1160px, 92%);
  margin: 0 auto;
}

.banner {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem 0 3.5rem;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-main);
  text-decoration: none;
  font-size: 1.15rem;
  font-weight: 700;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.nav-links {
  display: flex;
  gap: 1.1rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-soft);
  text-decoration: none;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: 0.3s ease;
}

.nav-links a:hover {
  color: var(--text-main);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.banner-content {
  max-width: 680px;
  padding: 1.8rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(4px);
}

.tag {
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #9de5d4;
  margin-bottom: 0.8rem;
}

.banner-content h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.16;
  margin-bottom: 1rem;
}

.banner-content p {
  color: var(--text-soft);
  font-size: clamp(1rem, 2vw, 1.15rem);
}

.banner-actions {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.banner-actions a {
  text-decoration: none;
  color: var(--text-main);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.7rem 1.25rem;
  font-weight: 600;
  transition: 0.3s ease;
}

.banner-actions a:hover {
  background: rgba(65, 167, 145, 0.22);
  border-color: rgba(154, 230, 214, 0.72);
}

main {
  padding-bottom: 4rem;
}

.about,
.intro {
  margin-top: 2rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: clamp(1.2rem, 4vw, 2.2rem);
  background: var(--card-bg);
  backdrop-filter: blur(4px);
}

.about h2,
.intro h2 {
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  margin-bottom: 0.8rem;
}

.about p {
  color: var(--text-soft);
  max-width: 760px;
  margin-bottom: 1.2rem;
}

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

.about-gallery img,
.intro-card img {
  width: 100%;
  aspect-ratio: 9 / 20;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.intro-grid {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem;
}

.intro-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1rem;
  background: rgba(5, 17, 16, 0.78);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.offset-up {
  transform: translateY(-12px);
}

.offset-down {
  transform: translateY(12px);
}

.intro-icon {
  font-size: 1.4rem;
}

.intro-card h3 {
  font-size: 1.25rem;
}

.intro-card p {
  color: var(--text-soft);
}

footer {
  border-top: 1px solid var(--line);
  margin-top: 2.5rem;
  padding: 1.6rem 0 2.4rem;
  text-align: center;
  color: var(--text-soft);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.7rem;
  color: var(--text-main);
  font-weight: 700;
}

.footer-brand img {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  object-fit: cover;
}

footer a {
  color: #9de5d4;
  text-decoration: none;
}

@media (max-width: 900px) {
  .about-gallery,
  .intro-grid {
    grid-template-columns: 1fr;
  }

  .offset-up,
  .offset-down {
    transform: none;
  }

  .banner {
    min-height: auto;
    gap: 2.2rem;
  }
}

@media (max-width: 520px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .banner-content {
    padding: 1.2rem;
  }

  .nav-links {
    gap: 0.5rem;
  }

  .nav-links a,
  .banner-actions a {
    font-size: 0.92rem;
  }
}