/* ============================================================
   Chiron Airways — Brand System
   Cobalt + cream. Interlocking rings. Technical precision.
   ============================================================ */

@font-face {
  font-family: "Artemis";
  src: url("../assets/Artemis-Inter.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&family=Inter:wght@300;400;500;600;700&display=swap");

:root {
  /* Palette */
  --cobalt:        #1942B0;
  --cobalt-deep:   #0F2D7E;
  --cobalt-bright: #2557d8;
  --cream:         #F1ECE0;
  --cream-bright:  #FAF6EC;
  --paper:         #E8E1CF;
  --ink:           #0B0E16;
  --ink-dim:       rgba(11,14,22,0.62);
  --ink-faint:     rgba(11,14,22,0.40);
  --ink-hair:      rgba(11,14,22,0.14);
  --ink-hair-strong: rgba(11,14,22,0.28);
  --on-cobalt:           rgba(255,255,255,0.85);
  --on-cobalt-dim:       rgba(255,255,255,0.62);
  --on-cobalt-faint:     rgba(255,255,255,0.36);
  --on-cobalt-hair:      rgba(255,255,255,0.14);
  --on-cobalt-hair-strong: rgba(255,255,255,0.28);
  --warm:    #E8C168;   /* amber for "live" indicators */
  --rust:    #B9572A;   /* warning */
  --green:   #4F9D6B;   /* confirm */

  /* Type */
  --font-display: "Artemis", "IBM Plex Sans", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body:    "IBM Plex Sans", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", "JetBrains Mono", ui-monospace, "SF Mono", monospace;

  /* Layout */
  --max:     1440px;
  --gutter:  32px;
  --hair:    1px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--cream); color: var(--ink); font-family: var(--font-body); }
body { min-height: 100vh; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ------- helpers ------- */
.mono { font-family: var(--font-mono); }
.uc   { text-transform: uppercase; letter-spacing: 0.2em; }
.hair { background: var(--ink-hair); height: 1px; width: 100%; }
.hair-v { background: var(--ink-hair); width: 1px; height: 100%; }

/* Tag — small mono pill with bullet */
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink);
}
.tag::before {
  content: ""; width: 6px; height: 6px; background: var(--cobalt);
}
.tag--cobalt { color: var(--on-cobalt); }
.tag--cobalt::before { background: var(--warm); box-shadow: 0 0 8px var(--warm); border-radius: 50%; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.2em; text-transform: uppercase;
  border: none; cursor: pointer; line-height: 1;
}
.btn--primary { background: var(--cobalt); color: var(--cream); }
.btn--primary:hover { background: var(--cobalt-bright); }
.btn--ink     { background: var(--ink); color: var(--cream); }
.btn--ghost   { background: transparent; color: var(--ink); border: 1px solid var(--ink-hair-strong); }
.btn--ghost:hover { border-color: var(--ink); }
.btn--on-cobalt { background: var(--cream); color: var(--ink); }
.btn--ghost-on-cobalt { background: transparent; color: var(--cream); border: 1px solid var(--on-cobalt-hair-strong); }

/* Section header — used across pages */
.section-head {
  display: grid; grid-template-columns: 220px 1fr; gap: 32px;
  padding: 20px 0; border-bottom: 1px solid var(--ink-hair);
  align-items: baseline;
}
.section-head__id {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.3em;
  color: var(--cobalt); text-transform: uppercase;
}
.section-head__title {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.3em;
  text-transform: uppercase;
}
.section-head__meta {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-faint); text-transform: uppercase; text-align: right;
}

/* Display headings */
.display {
  font-family: var(--font-display); font-weight: 400;
  letter-spacing: -0.02em; line-height: 0.96; color: var(--ink);
}
.display-xl  { font-size: 168px; }
.display-lg  { font-size: 120px; }
.display-md  { font-size: 88px;  }
.display-sm  { font-size: 56px;  }

/* Inverted on cobalt */
.on-cobalt { background: var(--cobalt); color: var(--cream); }
.on-cobalt .display { color: var(--cream); }
.on-cobalt .section-head { border-bottom-color: var(--on-cobalt-hair); }
.on-cobalt .section-head__id { color: var(--cream); }
.on-cobalt .section-head__meta { color: var(--on-cobalt-faint); }

/* ===== Nav ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: grid; grid-template-columns: auto 1fr auto;
  align-items: center; gap: 24px;
  padding: 18px var(--gutter);
  background: var(--cream);
  border-bottom: 1px solid var(--ink-hair);
}
.nav__brand {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-display); font-size: 18px;
  letter-spacing: 0.32em; text-transform: uppercase;
}
.nav__links {
  display: flex; gap: 20px; justify-content: center;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.16em; text-transform: uppercase;
}
.nav__link {
  display: inline-flex; gap: 6px; opacity: 0.78; padding: 6px 0;
  border-bottom: 1px solid transparent;
}
.nav__link:hover { opacity: 1; }
.nav__link.is-active { opacity: 1; border-bottom-color: var(--cobalt); color: var(--cobalt); }
.nav__link__idx { color: var(--cobalt); opacity: 0.6; }
.nav__right { display: flex; align-items: center; gap: 16px; justify-content: flex-end; }

/* Burger */
.nav__burger {
  width: 40px; height: 40px; border: 1px solid var(--ink-hair-strong);
  background: transparent; cursor: pointer; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px; padding: 0;
  transition: border-color .2s;
}
.nav__burger:hover { border-color: var(--ink); }
.nav__burger span {
  width: 16px; height: 1.5px; background: var(--ink);
  transition: transform .3s cubic-bezier(.16,.84,.44,1), opacity .2s;
}
.nav__burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Full-screen overlay menu */
.navmenu {
  position: fixed; inset: 0; z-index: 60;
  background: var(--cobalt); color: var(--cream);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .4s ease, visibility .4s;
  overflow-y: auto; -webkit-overflow-scrolling: touch;
}
.navmenu.is-open { opacity: 1; visibility: visible; pointer-events: auto; }
.navmenu__inner {
  max-width: var(--max); margin: 0 auto; min-height: 100%;
  padding: 120px var(--gutter) 64px;
  display: flex; flex-direction: column; gap: 52px;
  position: relative; z-index: 2;
}
.navmenu__primary { display: flex; flex-direction: column; }
.navmenu__link {
  display: grid; grid-template-columns: 60px 1fr auto; align-items: baseline; gap: 24px;
  padding: 12px 0; border-top: 1px solid var(--on-cobalt-hair);
  opacity: 0; transform: translateY(20px); transition: opacity .5s, transform .5s, color .2s;
}
.navmenu__primary .navmenu__link:last-child { border-bottom: 1px solid var(--on-cobalt-hair); }
.navmenu.is-open .navmenu__link { opacity: 1; transform: none; }
.navmenu__idx { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.2em; color: var(--warm); }
.navmenu__label { font-family: var(--font-display); font-size: 58px; letter-spacing: -0.03em; line-height: 1.04; color: var(--cream); }
.navmenu__arrow { font-family: var(--font-mono); font-size: 20px; color: var(--warm); opacity: 0; transition: opacity .2s, transform .2s; }
.navmenu__link:hover .navmenu__label { color: var(--warm); }
.navmenu__link:hover .navmenu__arrow { opacity: 1; transform: translate(4px, -4px); }
.navmenu__secondary { display: grid; grid-template-columns: repeat(5, 1fr); gap: 36px; max-width: 1100px; }
.navmenu__seccol h4 { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--warm); margin: 0 0 16px; }
.navmenu__seccol a { display: block; padding: 6px 0; font-family: var(--font-display); font-size: 17px; color: var(--cream); opacity: 0.75; }
.navmenu__seccol a:hover { opacity: 1; }
.navmenu__seccol--invest { padding: 18px 18px 4px; margin: -18px -18px 0; border: 1px solid var(--on-cobalt-hair); background: rgba(11,14,22,0.22); }
.navmenu__seccol--invest a:hover { color: var(--warm); }

/* Hide quick links below a width so burger carries the load */
@media (max-width: 1100px) {
  .nav__links--quick { display: none; }
}
@media (max-width: 640px) {
  .nav__live { display: none; }
  .navmenu__label { font-size: 48px; }
  .navmenu__secondary { grid-template-columns: 1fr 1fr; gap: 24px; }
  .navmenu__seccol--invest { margin: 0; }
}
@media (min-width: 901px) and (max-width: 1160px) {
  .navmenu__secondary { grid-template-columns: repeat(3, 1fr); max-width: 720px; }
}
@media (max-width: 560px) {
  .navmenu__secondary { grid-template-columns: 1fr; }
  .navmenu__inner { padding-top: 110px; }
}
.nav__live {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-faint); text-transform: uppercase; white-space: nowrap;
}
.nav__live::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--warm); box-shadow: 0 0 8px var(--warm);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ===== Footer ===== */
.footer {
  background: var(--ink); color: var(--cream);
  padding: 80px var(--gutter) 40px;
  position: relative; overflow: hidden;
}
.footer__inner { max-width: var(--max); margin: 0 auto; position: relative; z-index: 2; }
.footer__top {
  display: grid; grid-template-columns: 1.8fr repeat(5, 1fr);
  gap: 40px;
}
.footer__brand h2 {
  font-family: var(--font-display); font-size: 64px; line-height: 0.95;
  letter-spacing: -0.02em; margin: 16px 0 16px;
}
.footer__brand p {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--on-cobalt-faint); margin: 0;
}
.footer__col h4 {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--warm); margin: 0 0 18px;
}
.footer__col a {
  display: block; padding: 6px 0; font-family: var(--font-body);
  font-size: 14px; color: var(--cream); opacity: 0.72;
}
.footer__col a:hover { opacity: 1; }
.footer__bottom {
  margin-top: 64px; padding-top: 24px; border-top: 1px solid var(--on-cobalt-hair);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--on-cobalt-faint);
}
.footer__bottom span:nth-child(2) { text-align: center; }
.footer__bottom span:nth-child(3) { text-align: right; }

/* Ring decoration — used as a watermark/identity */
.ring-deco {
  position: absolute; pointer-events: none; user-select: none;
  opacity: 0.08;
}

/* ===== Misc ===== */
.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: 100px var(--gutter); }
.section--tight { padding: 60px var(--gutter); }
.section--big   { padding: 140px var(--gutter); }

/* Crosshair box — pure data grid */
.data-grid { display: grid; border: 1px solid var(--ink-hair); }
.data-grid > div { padding: 22px 24px; border-right: 1px solid var(--ink-hair); border-bottom: 1px solid var(--ink-hair); }
.data-grid > div:last-child { border-right: none; }
.data-grid__k { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--cobalt); }
.data-grid__v { font-family: var(--font-display); font-size: 32px; margin-top: 8px; letter-spacing: -0.02em; }

/* Selection */
::selection { background: var(--cobalt); color: var(--cream); }

/* Make sure inputs feel branded */
input, textarea, button { font-family: inherit; }
input[type="text"], input[type="email"], input[type="tel"] {
  background: transparent; border: none; outline: none;
  padding: 12px 0; border-bottom: 1px solid var(--ink-hair-strong);
  font-family: var(--font-display); font-size: 22px; color: var(--ink);
  width: 100%;
}
input[type="text"]:focus, input[type="email"]:focus { border-bottom-color: var(--cobalt); }

/* ============================================================
   RESPONSIVE PASS
   Inline-styled grids are collapsed via attribute selectors with
   !important (beats inline). Fixed-px grids (seat map = "40px 1fr…")
   and scrollable tables (repeat(5/6…) with min-width) are left alone.
   ============================================================ */
@media (max-width: 900px) {
  :root { --gutter: 20px; }
  .section { padding: 64px var(--gutter); }
  .section--big { padding: 80px var(--gutter); }

  /* Collapse common multi-column layouts to a single column */
  [style*="grid-template-columns: 1fr 1fr"],
  [style*="grid-template-columns: repeat(2"],
  [style*="grid-template-columns: repeat(3"],
  [style*="grid-template-columns: repeat(4"],
  [style*="grid-template-columns: 1.2fr 1fr"],
  [style*="grid-template-columns: 1.4fr 1fr"],
  [style*="grid-template-columns: 1.1fr 1fr"],
  [style*="grid-template-columns: 1fr 1.2fr"],
  [style*="grid-template-columns: 1fr 1.4fr"],
  [style*="grid-template-columns: 1fr 380px"],
  [style*="grid-template-columns: 1fr 360px"],
  [style*="grid-template-columns: 380px 1fr"],
  [style*="grid-template-columns: 360px 1fr"],
  [style*="grid-template-columns: 320px 1fr"],
  [style*="grid-template-columns: 300px 1fr"],
  [style*="grid-template-columns: 280px 1fr"],
  [style*="grid-template-columns: 220px 1fr"],
  [style*="grid-template-columns: 120px 220px 1fr"],
  [style*="grid-template-columns: 140px 220px 1fr"] {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
  }

  /* Wide fixed-column rows (flight cards, search widgets, list rows) → stack */
  [style*="grid-template-columns: 120px 1fr 320px"],
  [style*="grid-template-columns: 90px 1fr 200px"],
  [style*="grid-template-columns: 140px 220px 1fr 80px"],
  [style*="1fr 1fr 1fr 1fr 1fr auto"],
  [style*="1.2fr 1.2fr 1fr 1fr 1fr auto"] {
    grid-template-columns: 1fr 1fr !important;
    gap: 1px !important;
  }

  /* Section header → stacked */
  .section-head { grid-template-columns: 1fr !important; gap: 10px; }

  /* Footer → stacked */
  .footer__top { grid-template-columns: 1fr 1fr !important; }
  .footer__bottom { grid-template-columns: 1fr !important; }
  .footer__bottom span { text-align: left !important; }
  .footer { padding: 56px var(--gutter) 36px; }

  /* Tame oversized display type on phones (beats inline font-size) */
  .display[style] {
    font-size: clamp(34px, 11vw, 92px) !important;
    line-height: 0.96 !important;
  }

  /* Nav */
  .nav { padding: 14px var(--gutter); gap: 16px; }
  .nav__notify { display: none; }

  /* Inputs a touch bigger for tap targets */
  input[type="text"], input[type="email"], input[type="tel"], input[type="password"] { font-size: 18px; }

  /* Scrollable tables: let them scroll, hint with shadow */
  [style*="overflow-x: auto"], [style*="overflowX"] { -webkit-overflow-scrolling: touch; }
}

@media (max-width: 560px) {
  .footer__top { grid-template-columns: 1fr !important; }
  .display[style] { font-size: clamp(30px, 12.5vw, 72px) !important; }
  /* Order helpers used in some alternating layouts can leave images last */
  [style*="order: 1"], [style*="order: 2"] { order: 0 !important; }
}

/* Password input shares branded styling */
input[type="password"] {
  background: transparent; border: none; outline: none;
  padding: 12px 0; border-bottom: 1px solid var(--ink-hair-strong);
  font-family: var(--font-display); font-size: 22px; color: var(--ink); width: 100%;
}
input[type="password"]:focus { border-bottom-color: var(--cobalt); }