/* ===================================================================
   APEX HELICOPTERS — v2
   Aesthetic: refined luxury aviation. Deep ink, warm bone, champagne
   brass. Fraunces display serif, Hanken Grotesk body, Spline mono
   for instrument-style technical labels.
   Static HTML/CSS. Minimal vanilla JS (progressive enhancement only).
   =================================================================== */

:root {
  --ink:        #0a1822;   /* deep near-black navy */
  --ink-2:      #0e2230;   /* raised dark surface  */
  --night:      #11354a;   /* brand dark blue      */
  --paper:      #f4efe6;   /* warm bone            */
  --paper-2:    #e9e1cf;   /* (unused placeholder) */
  --bone-dim:   #cfc6b6;   /* muted warm           */
  --brass:      #c2a878;   /* champagne accent     */
  --brass-lo:   rgba(194, 168, 120, 0.28);
  --brass-hair: rgba(194, 168, 120, 0.20);
  --teal:       #4ea7ad;   /* sparing cool accent  */
  --ink-soft:   rgba(244, 239, 230, 0.66);
  --ink-faint:  rgba(244, 239, 230, 0.40);

  --serif: "Spectral", Georgia, "Times New Roman", serif;
  --sans:  "Hanken Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:  "Spline Sans Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --shell: 1240px;
  --gut: clamp(1.25rem, 5vw, 4rem);
  --hair: rgba(244, 239, 230, 0.12);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-weight: 350;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  line-height: 1.65;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* subtle grain across the whole page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

.shell { width: 100%; max-width: var(--shell); margin-inline: auto; padding-inline: var(--gut); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 10000;
  background: var(--brass); color: var(--ink); padding: 0.6rem 1rem;
  font: 500 0.8rem/1 var(--mono);
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

::selection { background: var(--brass); color: var(--ink); }

/* ---------- shared type ---------- */
.overline {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brass);
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}
.tick { width: 26px; height: 1px; background: var(--brass); display: inline-block; }

.display-1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 1.4rem + 5.4vw, 5.5rem);
  line-height: 1.0;
  letter-spacing: -0.015em;
}
.display-2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 1.2rem + 2.8vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.012em;
}
.display-2 em, .hero-title em { font-style: italic; color: var(--brass); }

/* ---------- buttons ---------- */
.btn {
  --pad: 0.95rem 1.7rem;
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: var(--pad);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.btn-primary { background: var(--brass); color: var(--ink); }
.btn-primary:hover { background: var(--paper); transform: translateY(-2px); }
.btn-ghost { border-color: var(--brass-lo); color: var(--paper); }
.btn-ghost:hover { border-color: var(--brass); color: var(--brass); transform: translateY(-2px); }

.link-arrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brass);
  display: inline-flex; align-items: center; gap: 0.55rem;
  border-bottom: 1px solid var(--brass-lo);
  padding-bottom: 0.35rem;
  transition: gap 0.3s ease, border-color 0.3s ease;
}
.link-arrow span { transition: transform 0.3s ease; }
.link-arrow:hover { border-color: var(--brass); }
.link-arrow:hover span { transform: translateX(5px); }

.dot { width: 7px; height: 7px; border-radius: 50%; display: inline-block; }
.dot-live { background: var(--teal); box-shadow: 0 0 0 0 rgba(78,167,173,0.6); animation: pulse 2.6s ease-out infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(78,167,173,0.55); }
  70% { box-shadow: 0 0 0 7px rgba(78,167,173,0); }
  100% { box-shadow: 0 0 0 0 rgba(78,167,173,0); }
}

/* ===================================================================
   HEADER
   =================================================================== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: rgba(10, 24, 34, 0.82);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border-bottom-color: var(--hair);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 1.15rem;
  transition: padding 0.4s ease;
}
.site-header.is-stuck .header-inner { padding-block: 0.8rem; }

.brand { display: inline-flex; align-items: center; gap: 0.7rem; color: var(--paper); }
.brand-mark { color: var(--brass); display: inline-flex; }
.brand-type { display: inline-flex; flex-direction: column; line-height: 1; }
.brand-name { font-family: var(--serif); font-weight: 500; font-size: 1.3rem; letter-spacing: 0.06em; }
.brand-sub { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.42em; color: var(--brass); margin-top: 0.18rem; }

.nav-desktop { display: flex; align-items: center; gap: 2.2rem; }
.nav-desktop a {
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-soft);
  position: relative; padding-block: 0.3rem;
  transition: color 0.3s ease;
}
.nav-desktop a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--brass); transition: width 0.35s ease;
}
.nav-desktop a:not(.nav-cta):hover { color: var(--paper); }
.nav-desktop a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  border: 1px solid var(--brass-lo); color: var(--brass) !important;
  padding: 0.55rem 1.15rem !important;
  transition: background 0.3s ease, color 0.3s ease !important;
}
.nav-cta:hover { background: var(--brass); color: var(--ink) !important; }

/* mobile toggle */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: 0; cursor: pointer; padding: 8px 4px;
}
.nav-toggle span { width: 26px; height: 1.6px; background: var(--paper); transition: transform 0.3s ease, opacity 0.3s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

.nav-mobile {
  display: none; flex-direction: column;
  background: rgba(10, 24, 34, 0.97);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--hair);
  overflow: hidden; max-height: 0;
  transition: max-height 0.4s ease;
}
.nav-mobile.open { max-height: 320px; }
.nav-mobile a {
  padding: 1.05rem var(--gut);
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-soft); border-bottom: 1px solid var(--hair);
}
.nav-mobile a:hover { color: var(--brass); }

/* ===================================================================
   HERO
   =================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-top: 8rem; padding-bottom: 0;
  overflow: hidden;
}
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 40%; }
.hero-veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(10,24,34,0.62) 0%, rgba(10,24,34,0.30) 32%, rgba(10,24,34,0.72) 78%, rgba(10,24,34,0.98) 100%),
    linear-gradient(90deg, rgba(10,24,34,0.78) 0%, rgba(10,24,34,0.10) 60%);
}
.hero-inner { position: relative; z-index: 2; padding-bottom: 3.2rem; }
.hero-title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2.9rem, 1.1rem + 7vw, 6.6rem);
  line-height: 1.0; letter-spacing: -0.018em;
  margin: 1.5rem 0 1.6rem;
  max-width: 16ch;
  text-shadow: 0 2px 40px rgba(0,0,0,0.4);
}
.hero-lede { max-width: 52ch; color: var(--paper); font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem); line-height: 1.6; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }

/* instrument readout strip */
.readout {
  position: relative; z-index: 2;
  border-top: 1px solid var(--brass-hair);
  background: linear-gradient(180deg, rgba(10,24,34,0.0), rgba(10,24,34,0.35));
}
.readout-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding-block: 1.4rem;
}
.readout-cell { display: flex; flex-direction: column; gap: 0.35rem; padding-right: 1rem; position: relative; }
.readout-cell + .readout-cell { padding-left: 1.6rem; }
.readout-cell + .readout-cell::before {
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 1px; background: var(--brass-hair);
}
.readout-key { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--brass); }
.readout-val { font-size: 0.92rem; color: var(--paper); display: inline-flex; align-items: center; gap: 0.5rem; }

/* ===================================================================
   SECTIONS — shared scaffolding
   =================================================================== */
.section { padding-block: clamp(5rem, 3rem + 8vw, 9rem); position: relative; }
.sec-head { display: flex; align-items: baseline; gap: 1rem; margin-bottom: 3rem; }
.sec-index { font-family: var(--mono); font-size: 0.8rem; color: var(--brass); letter-spacing: 0.1em; }
.sec-label {
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--ink-soft); position: relative; padding-left: 1.2rem;
}
.sec-label::before { content: ""; position: absolute; left: 0; top: 50%; width: 14px; height: 1px; background: var(--brass-lo); }

/* ---------- operation ---------- */
.section-operation { background: var(--ink); }
.operation-grid { display: grid; grid-template-columns: 1.25fr 0.9fr; gap: clamp(2.5rem, 1rem + 5vw, 6rem); align-items: start; }
.operation-lead .display-2 { margin-bottom: 1.6rem; max-width: 18ch; }
.operation-lead p { color: var(--ink-soft); max-width: 54ch; }
.operation-lead p + p { margin-top: 1.1rem; }

.creds { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 0; }
.creds li {
  display: grid; grid-template-columns: minmax(0, auto) 1fr; gap: 1.4rem; align-items: baseline;
  padding-block: 1.5rem; border-top: 1px solid var(--hair);
}
.creds li:last-child { border-bottom: 1px solid var(--hair); }
.creds-num {
  font-family: var(--serif); font-weight: 400; font-size: 2.4rem; line-height: 1; color: var(--paper);
  display: inline-flex; align-items: baseline; gap: 0.4rem; white-space: nowrap;
}
.creds-unit { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--brass); }
.creds-text { color: var(--ink-soft); font-size: 0.96rem; }

/* ---------- fleet ---------- */
.section-fleet { background: var(--ink-2); border-block: 1px solid var(--hair); }
.fleet-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.25rem, 0.5rem + 2vw, 2.25rem); align-items: stretch; }
.craft { display: flex; flex-direction: column; background: var(--ink); border: 1px solid var(--hair); }
.craft-media { position: relative; overflow: hidden; }
.craft-media img {
  width: 100%; aspect-ratio: 16 / 10; object-fit: cover;
  filter: saturate(0.95) contrast(1.02);
  transition: transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.craft:hover .craft-media img { transform: scale(1.04); }
.craft-tag {
  position: absolute; top: 1rem; left: 1rem;
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 0.5rem 0.85rem; display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(10,24,34,0.78); backdrop-filter: blur(6px); border: 1px solid var(--brass-hair);
}
.tag-live { color: var(--paper); }
.tag-soon { color: var(--brass); }
.craft-body { padding: clamp(1.5rem, 1rem + 1.5vw, 2.4rem); display: flex; flex-direction: column; flex: 1; }
.craft-name { font-family: var(--serif); font-weight: 400; font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.1rem); letter-spacing: -0.01em; margin: 0.55rem 0 1rem; }
.craft-copy { color: var(--ink-soft); margin-bottom: 1.6rem; }

.spec {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-bottom: 1.6rem;
  border-top: 1px solid var(--hair);
}
.spec > div { display: flex; justify-content: space-between; gap: 1rem; padding: 0.65rem 0; border-bottom: 1px solid var(--hair); }
.spec > div:nth-child(odd) { padding-right: 1.2rem; }
.spec > div:nth-child(even) { padding-left: 1.2rem; border-left: 1px solid var(--hair); }
.spec dt { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--brass); align-self: center; }
.spec dd { font-size: 0.9rem; color: var(--paper); text-align: right; }

/* cross-hire rate block */
.rate {
  border: 1px solid var(--brass-hair); background: rgba(194, 168, 120, 0.05);
  padding: 1rem 1.1rem; margin-bottom: 1.6rem;
  display: flex; flex-direction: column; gap: 0.45rem;
}
.rate-amt { font-family: var(--serif); font-weight: 500; font-size: 1.7rem; color: var(--brass); line-height: 1; }
.rate-per { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; color: var(--brass); margin-left: 0.35rem; }
.rate-note { font-size: 0.8rem; color: var(--ink-soft); line-height: 1.5; }

.craft-body .link-arrow { margin-top: auto; align-self: flex-start; }

/* ---------- capabilities ---------- */
.section-cap { background: var(--ink); }
.cap-intro { max-width: 60ch; margin-bottom: 3.5rem; }
.cap-intro .display-2 { margin-bottom: 1.2rem; }
.cap-intro p { color: var(--ink-soft); }
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.cap-card {
  background: var(--ink); border: 1px solid var(--hair);
  padding: clamp(1.6rem, 1rem + 1.5vw, 2.4rem);
  display: flex; flex-direction: column; gap: 0.85rem;
  transition: background 0.4s ease, border-color 0.4s ease;
}
.cap-card:hover { background: var(--ink-2); border-color: var(--brass-lo); }
.cap-status {
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 0.5rem; width: fit-content;
}
.status-live { color: var(--teal); }
.status-soon { color: var(--brass); opacity: 0.85; }
.cap-card h3 { font-family: var(--serif); font-weight: 400; font-size: 1.45rem; letter-spacing: -0.01em; }
.cap-card p { color: var(--ink-soft); font-size: 0.94rem; }

/* ---------- contact ---------- */
.section-contact { background: var(--ink-2); border-top: 1px solid var(--hair); text-align: left; }
.contact-inner .sec-head { justify-content: flex-start; }
.contact-lede { color: var(--ink-soft); max-width: 50ch; margin: 1.6rem 0 2.6rem; font-size: 1.1rem; }
.contact-email {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: clamp(1.6rem, 1rem + 3.4vw, 3.2rem);
  color: var(--brass); display: inline-block; line-height: 1.1;
  border-bottom: 1px solid var(--brass-lo); padding-bottom: 0.3rem;
  transition: color 0.3s ease, border-color 0.3s ease;
  word-break: break-word;
}
.contact-email:hover { color: var(--paper); border-color: var(--paper); }
.contact-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 4rem; }
.contact-meta > div { display: flex; flex-direction: column; gap: 0.6rem; padding-top: 1.3rem; border-top: 1px solid var(--hair); }
.meta-key { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--brass); }
.meta-val { color: var(--paper); font-size: 1rem; }
.meta-val small { color: var(--ink-faint); font-size: 0.82rem; }

/* ===================================================================
   FOOTER
   =================================================================== */
.site-footer { background: var(--ink); border-top: 1px solid var(--hair); padding-top: clamp(3rem, 2rem + 3vw, 5rem); }
.footer-inner { display: grid; grid-template-columns: 1.2fr 1fr 1.4fr; gap: 2.5rem; padding-bottom: 3rem; align-items: start; }
.footer-brand { display: inline-flex; align-items: center; gap: 0.7rem; }
.footer-brand .brand-mark { color: var(--brass); }
.footer-nav { display: flex; flex-direction: column; gap: 0.85rem; }
.footer-nav a { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); transition: color 0.3s ease; }
.footer-nav a:hover { color: var(--brass); }
.footer-contact { display: flex; flex-direction: column; gap: 0.7rem; color: var(--ink-soft); font-size: 0.92rem; }
.footer-contact a { color: var(--brass); }
.footer-contact a:hover { color: var(--paper); }
.footer-base {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
  padding-block: 1.6rem; border-top: 1px solid var(--hair);
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--ink-faint);
}
.footer-coords { color: var(--brass); opacity: 0.7; }

/* ===================================================================
   REVEAL (progressive enhancement — visible by default without JS)
   =================================================================== */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.9s cubic-bezier(0.2,0.8,0.2,1), transform 0.9s cubic-bezier(0.2,0.8,0.2,1); }
.js .reveal.in { opacity: 1; transform: none; }
.js .reveal[data-delay="1"] { transition-delay: 0.08s; }
.js .reveal[data-delay="2"] { transition-delay: 0.16s; }
.js .reveal[data-delay="3"] { transition-delay: 0.24s; }
.js .reveal[data-delay="4"] { transition-delay: 0.32s; }
.js .reveal[data-delay="5"] { transition-delay: 0.40s; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; }
}

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 980px) {
  .operation-grid { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }
  .nav-mobile { display: flex; }
  .readout-grid { grid-template-columns: 1fr 1fr; gap: 1.3rem 0; }
  .readout-cell:nth-child(odd) { padding-left: 0; }
  .readout-cell:nth-child(odd)::before { display: none; }
  .readout-cell:nth-child(2)::before, .readout-cell:nth-child(4)::before { display: block; }
  .readout-cell { padding-left: 1.3rem !important; }
  .readout-cell:nth-child(1), .readout-cell:nth-child(3) { padding-left: 0 !important; }
  .fleet-grid { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: 1fr; }
  .contact-meta { grid-template-columns: 1fr; gap: 0; }
  .contact-meta > div { padding-block: 1.3rem; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 460px) {
  .spec { grid-template-columns: 1fr; }
  .spec > div:nth-child(even) { padding-left: 0; border-left: 0; }
  .spec > div:nth-child(odd) { padding-right: 0; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
}