:root {
  --navy-900: #0e2841;
  --navy-800: #156082;
  --silver-100: #e8e8e8;
  --white: #ffffff;
  --overlay: rgba(7, 24, 40, 0.62);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
  background: #081724;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  scroll-snap-type: y mandatory;
}

.section-full {
  position: relative;
  min-height: 100vh;
  width: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1200;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.topbar.scrolled {
  background: rgba(8, 23, 36, 0.86);
  backdrop-filter: blur(6px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28);
}

.navbar {
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
}

.brand-logo {
  height: 140px;
  width: auto;
}

.nav-link {
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.82rem;
  font-weight: 600;
  margin-left: 0.6rem;
}

.nav-link:hover,
.nav-link:focus,
.nav-link.active {
  color: var(--silver-100);
}

.navbar-toggler {
  filter: invert(1);
}

.hero-section {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  padding: 7.5rem 0 3rem;
}

.hero-video,
.slide-bg::before {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay,
.final-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 25% 25%, rgba(21, 96, 130, 0.3), rgba(7, 24, 40, 0.8));
}

.hero-content,
.final-content {
  position: relative;
  z-index: 2;
}

.hero-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  margin-bottom: 1rem;
  color: #a9d0e1;
}

.hero-section h1 {
  max-width: 760px;
  font-size: clamp(2rem, 5vw, 4.25rem);
  line-height: 1.05;
  text-transform: uppercase;
  margin-bottom: 1.15rem;
}

.hero-text {
  max-width: 700px;
  font-size: clamp(1rem, 1.7vw, 1.35rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

.btn-hero {
  border: 1px solid rgba(255, 255, 255, 0.66);
  color: var(--white);
  padding: 0.7rem 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  font-weight: 700;
}

.btn-hero:hover,
.btn-hero:focus {
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 1.8rem;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.7rem;
  z-index: 2;
}

.slide-bg::before {
  content: "";
  background-image: var(--slide);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
}

.final-section {
  display: flex;
  align-items: center;
  color: var(--white);
  background-image: linear-gradient(180deg, rgba(14, 40, 65, 0.68), rgba(8, 23, 36, 0.95)), url("assets/slides/Slide15.JPG");
  background-size: cover;
  background-position: center;
}

.final-section h2 {
  max-width: 800px;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.15;
  text-transform: uppercase;
}

.contact-grid {
  margin-top: 2rem;
  display: grid;
  gap: 0.9rem;
}

.contact-grid a {
  width: fit-content;
  color: rgba(255, 255, 255, 0.95);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
  padding-bottom: 0.2rem;
  letter-spacing: 0.04em;
}

.contact-grid a:hover,
.contact-grid a:focus {
  color: #9dcde2;
  border-bottom-color: #9dcde2;
}

@media (max-width: 991px) {
  .topbar {
    background: rgba(8, 23, 36, 0.78);
    backdrop-filter: blur(5px);
  }

  body {
    scroll-snap-type: y proximity;
  }

  .section-full {
    min-height: 100svh;
  }

  .nav-link {
    margin-left: 0;
    padding-left: 0;
  }
}