/* =========================================================
   AC Flight — Design Tokens
   ========================================================= */
:root {
  /* Brand: black / gold / silver, matched to the AC Flight logo */
  --color-bg: #030303;
  --color-bg-alt: #0a0a09;
  --color-surface: #101010;
  --color-surface-2: #161514;
  --color-border: rgba(255, 255, 255, 0.09);
  --color-border-strong: rgba(255, 255, 255, 0.16);

  --color-text: #f4f2ec;
  --color-text-muted: #a9a49a;
  --color-text-dim: #7a766e;

  --color-gold: #cda23f;
  --color-gold-light: #e6c877;
  --color-gold-dim: #8a6b28;

  --color-silver: #c7cbd1;
  --color-silver-dim: #8b8f96;

  --color-danger: #e0574a;

  --font-display: "Cinzel", serif;
  --font-body: "Josefin Sans", sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --space-9: 128px;

  --container-w: 1180px;
  --radius: 4px;
  --radius-lg: 10px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 180ms;
  --dur-med: 320ms;
}

/* =========================================================
   Reset
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 var(--space-3);
  letter-spacing: 0.02em;
}

p { margin: 0 0 var(--space-3); color: var(--color-text-muted); }

ul { list-style: none; margin: 0; padding: 0; }

button { font-family: inherit; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* Focus visibility (WCAG) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-gold-light);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-gold);
  color: #000;
  padding: var(--space-2) var(--space-3);
  z-index: 1000;
  font-family: var(--font-body);
  font-weight: 600;
}
.skip-link:focus {
  left: var(--space-3);
  top: var(--space-3);
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 22px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold) 60%, var(--color-gold-dim));
  color: #16130a;
  border-color: var(--color-gold);
}
.btn-primary:hover { filter: brightness(1.08); }

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.btn-outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold-light);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 8px 4px;
}
.btn-ghost:hover { color: var(--color-gold-light); }

.btn-lg { padding: 15px 30px; font-size: 1rem; }
.btn-block { width: 100%; }

/* =========================================================
   Header
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(3, 3, 3, 0.65);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: background var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out);
}
.site-header.scrolled {
  background: rgba(3, 3, 3, 0.9);
  border-bottom-color: var(--color-border);
}

.header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--space-4);
  height: 76px;
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
}
.brand-mark { height: 42px; width: auto; }
.brand-word {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  color: var(--color-text);
}

.main-nav ul {
  display: flex;
  gap: var(--space-5);
}
.main-nav a {
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--dur-fast) var(--ease-out);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--color-gold);
  transition: width var(--dur-med) var(--ease-out);
}
.main-nav a:hover { color: var(--color-text); }
.main-nav a:hover::after { width: 100%; }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.header-call { display: inline-flex; }
.header-call .icon { width: 16px; height: 16px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text);
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.icon { width: 18px; height: 18px; flex-shrink: 0; }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(3,3,3,0.55) 0%, rgba(3,3,3,0.35) 30%, rgba(3,3,3,0.6) 70%, rgba(3,3,3,0.95) 100%),
    radial-gradient(ellipse at center, rgba(3,3,3,0.1) 0%, rgba(3,3,3,0.55) 75%);
}

.hero-content {
  position: relative;
  text-align: center;
  padding: 140px var(--space-4) var(--space-7);
  max-width: 860px;
}

.hero-logo {
  width: min(420px, 78vw);
  margin: 0 auto var(--space-4);
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.1vw, 1.65rem);
  color: var(--color-text);
  letter-spacing: 0.01em;
  margin: 0 0 var(--space-5);
}

.hero-sub {
  color: var(--color-silver);
  font-size: 1.02rem;
  letter-spacing: 0.03em;
  margin: 0 0 var(--space-5);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

.scroll-cue {
  position: absolute;
  bottom: var(--space-5);
  left: 50%;
  transform: translateX(-50%);
  width: 32px; height: 32px;
  color: var(--color-silver-dim);
  animation: bob 2.2s ease-in-out infinite;
}
.scroll-cue svg { width: 100%; height: 100%; }
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}
@media (prefers-reduced-motion: reduce) {
  .scroll-cue { animation: none; }
}

/* =========================================================
   Sections
   ========================================================= */
.section {
  padding: var(--space-8) 0;
}
.section-alt { background: var(--color-bg-alt); }

/* =========================================================
   Discovery Flight Banner
   ========================================================= */
.discovery-banner {
  padding: 0 0 var(--space-8);
}
.discovery-banner-inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  position: relative;
  overflow: hidden;
  background-image:
    linear-gradient(100deg, rgba(10, 10, 9, 0.92) 0%, rgba(10, 10, 9, 0.72) 45%, rgba(10, 10, 9, 0.88) 100%),
    url("../assets/images/discovery-cockpit-sunset.jpg");
  background-size: cover;
  background-position: center 62%;
  border: 1px solid var(--color-gold-dim);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.discovery-banner-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(205, 162, 63, 0.1);
  color: var(--color-gold-light);
}
.discovery-banner-icon svg { width: 28px; height: 28px; }
.discovery-banner-copy { flex: 1; }
.discovery-banner-copy h3 {
  font-size: 1.3rem;
  color: var(--color-text);
  margin-bottom: 6px;
}
.discovery-banner-copy p {
  margin: 0;
  font-size: 1rem;
  max-width: 640px;
}
.discovery-banner-cta { flex-shrink: 0; }

.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin: 0 0 var(--space-2);
}

.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  color: var(--color-text);
}

.section-lede {
  max-width: 620px;
  font-size: 1.05rem;
  margin-bottom: var(--space-6);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* =========================================================
   Cards / Services
   ========================================================= */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: border-color var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
}
.card:hover {
  border-color: var(--color-gold-dim);
  transform: translateY(-3px);
}

.card-photo-bg {
  position: relative;
  overflow: hidden;
}
.card-photo-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(165deg, rgba(10, 10, 9, 0.55) 0%, rgba(10, 10, 9, 0.88) 65%, rgba(10, 10, 9, 0.96) 100%),
    var(--card-bg-image);
  background-size: cover;
  background-position: 60% 40%;
  transition: transform 600ms var(--ease-out);
}
.card-photo-bg:hover::before {
  transform: scale(1.04);
}
.card-sectional { --card-bg-image: url("../assets/images/sectional-phoenix-tac.jpg"); }
.card-enroute { --card-bg-image: url("../assets/images/ifr-low-enroute-phoenix.jpg"); }
.card-la-sectional { --card-bg-image: url("../assets/images/sectional-la-tac.jpg"); }
.card-approach { --card-bg-image: url("../assets/images/approach-plate-sdl.jpg"); }
.card-weather { --card-bg-image: url("../assets/images/weather-surface-analysis.jpg"); }
.card-diagram { --card-bg-image: url("../assets/images/airport-diagram-chd.jpg"); }

/* These three sources are mostly white paper, not colorful maps — need a stronger overlay for text contrast */
.card-approach::before,
.card-weather::before,
.card-diagram::before {
  background-image:
    linear-gradient(165deg, rgba(10, 10, 9, 0.78) 0%, rgba(10, 10, 9, 0.93) 55%, rgba(10, 10, 9, 0.97) 100%),
    var(--card-bg-image);
}

.card-icon {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(205, 162, 63, 0.1);
  color: var(--color-gold-light);
  margin-bottom: var(--space-3);
}
.card-icon svg { width: 24px; height: 24px; }

.card h3 {
  font-size: 1.15rem;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.card p { font-size: 0.94rem; margin-bottom: var(--space-3); }

.card-ref {
  display: block;
  font-size: 0.78rem;
  color: var(--color-text-dim);
  letter-spacing: 0.03em;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-2);
}

/* =========================================================
   Requirements
   ========================================================= */
.requirements-section {
  position: relative;
  overflow: hidden;
}

.requirements-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  opacity: 0;
  transition: opacity 1200ms var(--ease-out);
}
.requirements-bg.is-visible { opacity: 1; }
.requirements-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: linear-gradient(165deg, rgba(10, 10, 9, 0.7) 0%, rgba(10, 10, 9, 0.9) 65%, rgba(10, 10, 9, 0.96) 100%);
}
.requirements-bg-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 140%;
  object-fit: cover;
  object-position: center top;
  transform: translate3d(0, 0, 0);
  will-change: transform;
}

.requirements-list {
  display: flex;
  flex-direction: column;
}

.requirement-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border);
}
.requirement-item:last-child { border-bottom: none; }

.requirement-icon {
  flex-shrink: 0;
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(205, 162, 63, 0.1);
  color: #f5f4f2;
}
.requirement-icon svg { width: 24px; height: 24px; }

.requirement-body { flex: 1; }

.requirement-item h3 {
  font-size: 1.15rem;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.requirement-item p { font-size: 0.94rem; margin-bottom: 0; }

.requirement-ref {
  display: block;
  font-size: 0.78rem;
  color: var(--color-text-dim);
  letter-spacing: 0.03em;
  margin-top: var(--space-2);
}

/* =========================================================
   About
   ========================================================= */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-7);
  align-items: center;
}

.about-media img {
  border-radius: var(--radius-lg);
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

.about-copy .section-title { margin-bottom: var(--space-3); }
.about-copy p { font-size: 1.02rem; }

.rating-badges {
  display: flex;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}
.rating-badges li {
  border: 1px solid var(--color-gold-dim);
  color: var(--color-gold-light);
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  padding: 7px 16px;
  border-radius: 3px;
}

.pull-quote {
  margin: var(--space-5) 0 0;
  padding-left: var(--space-4);
  border-left: 2px solid var(--color-gold);
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-silver);
  font-style: normal;
  line-height: 1.5;
}

/* =========================================================
   Airports
   ========================================================= */
.airport-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.airport-card {
  text-align: center;
  padding: var(--space-6) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  transition: border-color var(--dur-med) var(--ease-out);
}
.airport-card:hover { border-color: var(--color-gold-dim); }

.airport-code {
  display: block;
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--color-gold-light);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}

.airport-name {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* =========================================================
   Gallery
   ========================================================= */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 260px;
  gap: var(--space-3);
}
.gallery-item {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.gallery-item-wide { grid-column: span 2; }
.gallery-item-full { grid-column: 1 / -1; }
.gallery-item-tall { grid-row: span 2; }
.gallery-item img,
.gallery-item video {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease-out);
}
.gallery-item:hover img,
.gallery-item:hover video { transform: scale(1.05); }

/* =========================================================
   Contact
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-7);
  align-items: start;
}

.contact-copy .section-title { margin-bottom: var(--space-3); }

.contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.contact-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: 1rem;
}
.contact-list .icon { color: var(--color-gold); }
.contact-list a:hover { color: var(--color-gold-light); }

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.form-row { margin-bottom: var(--space-4); }
.form-row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: 0;
}
.form-row-split > div { margin-bottom: var(--space-4); }

label {
  display: block;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

input, textarea, select {
  width: 100%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 11px 13px;
  transition: border-color var(--dur-fast) var(--ease-out);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--color-gold);
}
textarea { resize: vertical; min-height: 100px; }

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a9a49a' stroke-width='1.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 36px;
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-align: center;
  margin: var(--space-3) 0 0;
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-7) 0 var(--space-5);
  background: var(--color-bg);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
}
.brand-footer { margin-right: 0; }
.footer-tagline {
  max-width: 480px;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 500;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  color: var(--color-gold-light);
}
.footer-links {
  display: flex;
  gap: var(--space-4);
  font-size: 0.9rem;
}
.footer-links a:hover { color: var(--color-gold-light); }
.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-top: var(--space-3);
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .airport-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .about-media { max-width: 420px; margin: 0 auto var(--space-5); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .main-nav { display: none; }
  .header-actions { display: none; }
  .nav-toggle { display: flex; }

  .main-nav.is-open {
    display: block;
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: rgba(3,3,3,0.98);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4);
    backdrop-filter: blur(14px);
  }
  .main-nav.is-open ul {
    flex-direction: column;
    gap: var(--space-1);
  }
  .main-nav.is-open a {
    display: block;
    padding: var(--space-3) var(--space-2);
    font-size: 1.05rem;
  }
  .main-nav.is-open a::after { display: none; }

  .gallery-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 200px; }
}

@media (max-width: 640px) {
  .header-inner { height: 66px; }
  .brand-mark { height: 34px; }
  .brand-word { font-size: 0.9rem; }
  .main-nav.is-open { top: 66px; }

  .hero-content { padding-top: 110px; }
  .hero-cta { flex-direction: column; align-items: stretch; }

  .card-grid { grid-template-columns: 1fr; }
  .airport-grid { grid-template-columns: 1fr; }
  .requirement-item { gap: var(--space-3); }

  .gallery-grid { grid-template-columns: 1fr; grid-auto-rows: 240px; }
  .gallery-item-wide { grid-column: span 1; }

  .form-row-split { grid-template-columns: 1fr; }

  .discovery-banner-inner { flex-direction: column; text-align: center; }
  .discovery-banner-cta { width: 100%; }

  .section { padding: var(--space-7) 0; }
}