/* Arctic Cargo – Nordic ice-age theme */
:root {
  --black: #000000;
  --navy: #0c1d53;
  --ice: #b1cfea;
  --white: #ffffff;
  --font: 'Gotham', -apple-system, BlinkMacSystemFont, sans-serif;
  --container: min(1100px, 100vw - 4rem);
  --section-padding: clamp(4rem, 10vw, 7rem);
  --header-height: 4rem;
}

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

/* Override browser default <p> margins in hero so spacing is controlled */
#hero .hero-content p {
  margin: -5rem 0 0 0 !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-weight: 400;
  color: var(--navy);
  background: var(--white);
  line-height: 1.7;
}

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

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 3px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.site-header.scrolled {
  background: var(--white);
  box-shadow: 0 1px 0 rgba(12, 29, 83, 0.08);
}

.site-header .logo {
  height: 2.25rem;
  width: auto;
}

.site-header .logo img {
  height: 100%;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav a {
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.site-nav a:hover {
  color: var(--ice);
}

.nav-cta {
  padding: 0.5rem 1rem;
  background: var(--navy);
  color: var(--white);
  border-radius: 4px;
  font-size: 0.85rem;
}

.nav-cta:hover {
  background: var(--ice);
  color: var(--navy);
}

/* Mobile menu button */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--navy);
}

.menu-toggle span {
  display: block;
  width: 1.5rem;
  height: 2px;
  background: currentColor;
  margin: 5px 0;
  transition: transform 0.2s, opacity 0.2s;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--section-padding) 2rem;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.85) 0%, rgba(177, 207, 234, 0.9) 100%);
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center !important;
  max-width: 42rem;
  width: 100%;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  gap: 2px !important;
}

.hero-logo {
  width: min(320px, 85vw);
  margin: -1.5rem 0 0 0 !important;
}

.hero-logo img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: bottom;
}

#hero .tagline {
  font-family: var(--font);
  font-weight: 300;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--navy);
  letter-spacing: 0.06em;
  margin: 0 !important;
  padding: 0 !important;
  width: 100%;
  text-align: center !important;
  display: block;
}

#hero .btn-hero {
  margin-top: 1.25rem !important;
  margin-bottom: 0 !important;
}

.btn-hero {
  display: inline-block;
  padding: 0.9rem 2rem;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.03em;
  border-radius: 4px;
  transition: background 0.2s ease, color 0.2s ease;
}

.btn-hero:hover {
  background: var(--ice);
  color: var(--navy);
}

.btn-hero:focus-visible {
  outline-color: var(--white);
}

/* Sections common */
section {
  padding: var(--section-padding) 2rem;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
}

.section-title {
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--navy);
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

.section-intro {
  font-weight: 300;
  font-size: 1.1rem;
  max-width: 34rem;
  margin: 0 0 2.5rem;
  color: var(--black);
  letter-spacing: 0.01em;
}

/* About */
#about {
  background: var(--white);
}

#about .section-intro {
  margin-bottom: 2rem;
}

.btn-discord {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  border-radius: 4px;
  transition: background 0.2s ease, color 0.2s ease;
}

.btn-discord:hover {
  background: var(--ice);
  color: var(--navy);
}

.btn-discord:focus-visible {
  outline-color: var(--white);
}

/* Fleet */
#fleet {
  background: var(--ice);
}

.fleet-visuals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2.5rem 0 3rem;
}

.fleet-img {
  width: 100%;
  border-radius: 4px;
  box-shadow: 0 4px 20px rgba(12, 29, 83, 0.12);
}

.fleet-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2rem;
  margin-top: 2.5rem;
}

.fleet-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 6px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(12, 29, 83, 0.06);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.fleet-card:hover {
  box-shadow: 0 8px 24px rgba(12, 29, 83, 0.1);
  transform: translateY(-2px);
}

.fleet-card .name {
  height: 2.5rem;
  margin: 0 auto 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fleet-card .name img {
  max-height: 100%;
  width: auto;
  margin: 0 auto;
}

.fleet-card .aircraft-type {
  font-weight: 300;
  font-size: 0.8rem;
  color: var(--navy);
  margin: 0;
  letter-spacing: 0.02em;
  opacity: 0.9;
}

/* Contact */
#contact {
  background: linear-gradient(180deg, var(--ice) 0%, var(--navy) 100%);
  color: var(--white);
}

#contact .section-title,
#contact .section-intro {
  color: var(--white);
}

#contact .section-intro {
  opacity: 0.9;
}

.cta-button {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.9rem 1.75rem;
  background: var(--white);
  color: var(--navy);
  font-family: var(--font);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.cta-button:hover {
  background: var(--ice);
  color: var(--navy);
}

.cta-button:focus-visible {
  outline-color: var(--white);
}

/* Footer */
.site-footer {
  padding: 3rem 2rem;
  background: var(--black);
  color: var(--white);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1.5rem;
}

.footer-logo {
  height: 3.5rem;
}

.footer-logo img {
  height: 100%;
  width: auto;
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
}

.footer-nav a {
  font-size: 0.9rem;
  font-weight: 300;
}

.footer-nav a:hover {
  color: var(--ice);
}

.site-footer .copyright {
  font-size: 0.85rem;
  font-weight: 300;
  opacity: 0.8;
  margin: 0;
}

/* Responsive */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .site-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .site-nav a {
    padding: 0.5rem 0;
  }

  .fleet-grid {
    grid-template-columns: 1fr;
  }

  .fleet-visuals {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .site-footer .container {
    flex-direction: column;
    text-align: center;
  }
}