/* Aviation Ventures — single stylesheet, no build step, no web fonts (speed). */
:root {
  --navy: #11263F;
  --navy-deep: #0B1A2C;
  --ink: #1C2733;
  --slate: #56687A;
  --mist: #E6EDF4;
  --paper: #F7F9FB;
  --white: #FFFFFF;
  --signal: #B9281F;      /* CTA only */
  --signal-dark: #951F18;
  --rule: #CBD6E2;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --wrap: 1080px;
  --measure: 66ch;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body {
  margin: 0; font-family: var(--font); font-size: 17px; line-height: 1.6;
  color: var(--ink); background: var(--white);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--navy-deep); }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.015em; color: var(--navy); margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); font-weight: 700; }
h2 { font-size: clamp(1.45rem, 2.6vw, 1.9rem); font-weight: 700; margin-top: 0; }
h3 { font-size: 1.2rem; font-weight: 650; }
p { margin: 0 0 1em; }
ul { padding-left: 1.2em; } li { margin-bottom: .4em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: calc(var(--measure) + 40px); }
.section { padding: 56px 20px; }
.section + .section { padding-top: 0; }
.lede { font-size: 1.2rem; color: var(--slate); max-width: var(--measure); }
.lede-sm { color: var(--slate); max-width: var(--measure); }
.kicker { color: var(--slate); font-size: .95rem; margin-bottom: .6em; }
.fine { font-size: .85rem; color: var(--slate); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--white); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }

/* Buttons */
.btn { display: inline-block; padding: 12px 22px; border-radius: 4px; font-weight: 650; text-decoration: none; line-height: 1.2; border: 2px solid transparent; }
.btn-primary { background: var(--signal); color: var(--white); }
.btn-primary:hover { background: var(--signal-dark); color: var(--white); }
.btn-ghost { background: transparent; color: var(--white); border-color: rgba(255,255,255,.55); }
.btn-ghost:hover { border-color: var(--white); color: var(--white); }
.btn-light { background: var(--white); color: var(--navy); }
.btn-light:hover { background: var(--mist); color: var(--navy); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 1.4em; }
.or { color: inherit; opacity: .8; }

/* Header */
.site-header { background: var(--white); border-bottom: 1px solid var(--rule); position: sticky; top: 0; z-index: 50; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; color: var(--navy); }
.brand em { font-style: normal; color: var(--signal); }
.nav { display: flex; gap: 18px; align-items: center; font-size: .95rem; }
.nav a { text-decoration: none; font-weight: 500; color: var(--ink); }
.nav a:hover { color: var(--navy); text-decoration: underline; }
.nav .btn { padding: 9px 16px; color: var(--white); }
.menu-btn { display: none; background: none; border: 1px solid var(--rule); border-radius: 4px; padding: 8px 14px; font: inherit; color: var(--navy); }
@media (max-width: 960px) {
  .menu-btn { display: inline-block; }
  .nav { display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 0 16px; border-top: 1px solid var(--rule); }
  .nav.open { display: flex; }
  .nav a { padding: 12px 4px; border-bottom: 1px solid var(--mist); }
  .nav .btn { margin-top: 12px; text-align: center; border-bottom: 0; }
}

/* Hero */
.hero {
  color: var(--white);
  background: linear-gradient(100deg, rgba(11,26,44,.96) 0%, rgba(17,38,63,.88) 55%, rgba(17,38,63,.7) 100%), url("../assets/hero.jpg") center/cover no-repeat, var(--navy);
  padding: 72px 0 80px;
}
.hero h1 { color: var(--white); max-width: 16ch; }
.hero .kicker, .hero .lede { color: rgba(255,255,255,.82); }
.hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px 48px; align-items: start; }
.hero-copy { padding-top: 24px; }
.hero-photo { grid-column: 2; margin: 0; }
.hero-photo img { border-radius: 4px; box-shadow: 0 12px 40px rgba(0,0,0,.25); }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; gap: 28px; } .hero-photo { grid-column: 1; } .hero { padding: 48px 0 56px; } }

/* The strip: an at-a-glance block styled like a flight-progress strip */
.strip { background: var(--white); color: var(--ink); border-left: 8px solid var(--signal); padding: 8px 0; box-shadow: 0 12px 40px rgba(0,0,0,.25); }
.strip-row { display: grid; grid-template-columns: 128px 1fr; gap: 12px; padding: 10px 18px; border-bottom: 1px solid var(--mist); align-items: baseline; }
.strip-row:last-child { border-bottom: 0; }
.strip-k { font-size: .82rem; color: var(--slate); }
.strip-v { font-weight: 650; color: var(--navy); }
.strip-row.ids .strip-v a { text-decoration: none; margin-right: 10px; font-variant-numeric: tabular-nums; letter-spacing: .04em; }
.strip-row.ids .strip-v a:hover { text-decoration: underline; }

/* Services */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 760px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }
.service { display: block; text-decoration: none; color: var(--ink); padding: 22px 24px; border-top: 3px solid var(--navy); background: var(--paper); }
.service h3 { margin-bottom: .4em; }
.service p { margin: 0; color: var(--slate); }
.service:hover { background: var(--mist); color: var(--ink); }
.service:hover h3 { text-decoration: underline; }

/* Airports */
.band-mist { background: var(--mist); }
.airport { display: flex; flex-direction: column; gap: 4px; text-decoration: none; color: var(--ink); background: var(--white); padding: 18px 20px; border-radius: 4px; }
.airport .ident { font-weight: 700; font-size: 1.6rem; color: var(--navy); letter-spacing: .04em; font-variant-numeric: tabular-nums; }
.airport:hover { outline: 2px solid var(--navy); color: var(--ink); }
.also { margin-top: 20px; color: var(--slate); font-size: .95rem; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; gap: 24px; } }

/* FAQ */
details { border-top: 1px solid var(--rule); padding: 12px 0; }
details:last-of-type { border-bottom: 1px solid var(--rule); }
summary { cursor: pointer; font-weight: 650; color: var(--navy); }
details p { margin: .6em 0 0; color: var(--ink); }

/* About */
.portrait { margin: 0 0 24px; max-width: 320px; }
.portrait img { border-radius: 4px; background: var(--mist); }
@media (min-width: 860px) { .about .portrait { float: right; margin: 0 0 20px 32px; } }

/* Blog */
.post-list { list-style: none; padding: 0; }
.post-list li { padding: 18px 0; border-top: 1px solid var(--rule); }
.post-list time, .post time { color: var(--slate); font-size: .9rem; }
.post h2 { margin-top: 1.4em; }

/* CTA band + footer */
.cta-band { background: var(--navy); color: var(--white); padding: 56px 0; }
.cta-band h2 { color: var(--white); }
.cta-band p { max-width: var(--measure); }
.cta-band a:not(.btn) { color: var(--white); }
.site-footer { background: var(--navy-deep); color: rgba(255,255,255,.78); padding: 40px 0 24px; font-size: .95rem; }
.site-footer a { color: rgba(255,255,255,.9); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; color: var(--white); }
.site-footer strong { color: var(--white); }
.site-footer .fine { margin-top: 28px; color: rgba(255,255,255,.55); font-size: .8rem; }