:root {
  --sea-900: #033047;
  --sea-800: #084f6d;
  --sea-700: #0b6b8b;
  --sea-500: #12a7c6;
  --sand-100: #f7f2e8;
  --ink-900: #19252e;
  --ink-600: #4c5f6b;
}

* {
  box-sizing: border-box;
}

html,
body {
  scroll-behavior: smooth;
}

body {
  font-family: "Nunito Sans", sans-serif;
  color: var(--ink-900);
  background:
    radial-gradient(circle at 12% 10%, #ffffff 0%, #eef9fc 32%, transparent 40%),
    radial-gradient(circle at 90% 100%, #daf1f7 0%, #eaf7fa 33%, transparent 44%),
    #f5fbfd;
}

.site-header {
  background: linear-gradient(120deg, var(--sea-900), var(--sea-700));
  position: sticky;
  top: 0;
  z-index: 1000;
}

.brand-title {
  font-weight: 800;
  letter-spacing: 0.08em;
}

.navbar .nav-link {
  color: rgba(255, 255, 255, 0.92);
  font-weight: 700;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 0.35rem;
}

.hero-section {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(126deg, rgba(3, 48, 71, 0.95), rgba(11, 107, 139, 0.86)),
    url("../img/wave-texture.svg") center / cover no-repeat;
  color: #fff;
  padding: 5.5rem 0;
}

.hero-chip {
  display: inline-block;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  font-weight: 700;
  font-size: 0.9rem;
}

.hero-image {
  border-radius: 1.2rem;
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.28);
}

.section-block {
  padding: 5rem 0;
}

.section-alt {
  background: linear-gradient(180deg, #ffffff, #ecf8fb);
}

.section-head {
  margin-bottom: 1.8rem;
}

.section-kicker {
  color: var(--sea-700);
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  margin-bottom: 0.4rem;
}

.section-title {
  font-weight: 800;
  margin-bottom: 0.6rem;
}

.product-card,
.story-card {
  background: #fff;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid #e2eef3;
  box-shadow: 0 12px 28px rgba(7, 65, 90, 0.09);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.product-card:hover,
.story-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 36px rgba(7, 65, 90, 0.16);
}

.product-card h3,
.story-card h3 {
  font-size: 1.1rem;
  font-weight: 800;
}

.product-card p,
.story-card p {
  color: var(--ink-600);
}

.story-card {
  padding: 1.2rem;
}

.story-card span {
  color: var(--sea-700);
  font-size: 0.9rem;
  font-weight: 700;
}

.link-sea {
  color: var(--sea-700);
  font-weight: 800;
}

.link-sea:hover {
  color: var(--sea-900);
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.promo-strip {
  background: linear-gradient(95deg, var(--sea-800), var(--sea-500));
  color: #fff;
  padding: 1.2rem 0;
}

.btn-sea {
  --bs-btn-color: #fff;
  --bs-btn-bg: #0d8db0;
  --bs-btn-border-color: #0d8db0;
  --bs-btn-hover-bg: #0b7898;
  --bs-btn-hover-border-color: #0b7898;
  --bs-btn-active-bg: #086680;
  --bs-btn-active-border-color: #086680;
}

.site-footer {
  background: #082f43;
  color: #d5eaf2;
}

.site-footer .form-control {
  border: 1px solid #2f6078;
  background: #0a3d55;
  color: #fff;
}

.site-footer .form-control:focus {
  background: #0a3d55;
  color: #fff;
  border-color: #6dc8de;
  box-shadow: none;
}

.social-links {
  display: flex;
  gap: 0.7rem;
}

.social-links a {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #72bad0;
  border-radius: 50%;
  color: #c2e8f4;
  text-decoration: none;
}

.social-links a:hover {
  color: #fff;
  border-color: #fff;
}

.footer-bottom {
  background: #072638;
}

.reveal-up {
  opacity: 0;
  transform: translateY(24px);
}

.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.delay-1.visible {
  transition-delay: 0.1s;
}

.delay-2.visible {
  transition-delay: 0.2s;
}

.delay-3.visible {
  transition-delay: 0.3s;
}

@media (max-width: 767.98px) {
  .hero-section {
    padding: 4rem 0;
  }

  .section-block {
    padding: 3.6rem 0;
  }
}