/* ===== Ardmore Helicopters — shared design tokens ===== */
:root{
  --ink:#16161A;
  --ink-2:#2A2A2E;
  --soft:#6E6B66;
  --hair:#D9D2C7;
  --paper:#F2EEE7;
  --paper-2:#EAE4D8;
  --paper-warm:#E6DECE;
  --night:#0E1014;
  --serif:"Inter",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-weight:300;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{font-size:16px;line-height:1.6;letter-spacing:.005em}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}

/* ---------- TOP CHROME ---------- */
.topbar{position:fixed;top:0;left:0;right:0;z-index:50;background:var(--paper);border-bottom:1px solid var(--hair);transition:padding .35s ease,background .35s ease}
.topbar.over-hero{border-bottom-color:transparent}
.topbar.over-hero{background:linear-gradient(180deg, rgba(8,10,14,.7) 0%, rgba(8,10,14,.35) 60%, rgba(8,10,14,0) 100%);border-bottom-color:transparent;color:#EFE9DD}
.topbar.over-hero .meta a,.topbar.over-hero .nav a,.topbar.over-hero .wordmark{text-shadow:0 1px 12px rgba(0,0,0,.45)}
.topbar.over-hero .meta{color:rgba(239,233,221,.7)}
.topbar.over-hero .nav a{color:rgba(239,233,221,.85)}
.topbar.over-hero .nav .book{border-color:rgba(239,233,221,.7);color:#EFE9DD}
.topbar.over-hero .nav .book:hover{background:#EFE9DD;color:var(--ink)}
.topbar.over-hero .wordmark{color:#EFE9DD}
.topbar.over-hero .wordmark .sub{color:rgba(239,233,221,.55)}
.topbar.over-hero .meta .dot{box-shadow:0 0 0 3px rgba(95,165,122,.25)}
.topbar__inner{max-width:1480px;margin:0 auto;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:18px 40px;gap:32px;transition:padding .35s ease}
.topbar.scrolled .topbar__inner{padding:12px 40px}
.meta{display:flex;gap:28px;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--soft);font-weight:400}
.meta a{transition:color .2s}
.meta a:hover{color:var(--ink)}
.topbar.over-hero .meta a:hover{color:#fff}
.meta .dot{width:6px;height:6px;border-radius:50%;background:#5fa57a;display:inline-block;margin-right:8px;vertical-align:middle;box-shadow:0 0 0 3px rgba(95,165,122,.18)}
.wordmark{font-family:var(--sans);font-weight:600;font-size:16px;letter-spacing:.22em;text-transform:uppercase;text-align:center;line-height:1;color:var(--ink);transition:color .35s}
.wordmark .sub{display:block;font-family:var(--sans);font-weight:400;font-size:9px;letter-spacing:.32em;color:var(--soft);margin-top:6px;transition:color .35s}
.nav{display:flex;justify-content:flex-end;align-items:center;gap:30px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;font-weight:400}
.nav a{position:relative;padding:6px 0;color:var(--ink-2);transition:color .2s}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:currentColor;transition:right .35s ease}
.nav a:hover::after{right:0}
.nav .login{margin-left:4px;padding:11px 22px;border:1px solid var(--hair);border-radius:999px;letter-spacing:.16em;font-size:12px;color:var(--soft);transition:background .25s,color .25s,border-color .25s}
.nav .login:hover{border-color:var(--ink);color:var(--ink)}
.nav .book{margin-left:6px;padding:11px 22px;border:1px solid var(--ink);border-radius:999px;letter-spacing:.16em;transition:background .25s,color .25s,border-color .25s}
.nav .book:hover{background:var(--ink);color:var(--paper)}
.nav .book::after{display:none}

/* ---------- SHARED ---------- */
.wrap{max-width:1480px;margin:0 auto}
.eyebrow{font-size:10px;letter-spacing:.32em;text-transform:uppercase;color:var(--soft);font-weight:500;display:flex;align-items:center;gap:14px}
.h-display{font-family:var(--sans);font-weight:600;font-size:clamp(52px,6.5vw,100px);line-height:1.0;letter-spacing:-.03em;margin:0;color:var(--ink);text-wrap:balance}
.h-display em{font-style:italic;font-weight:300;color:var(--soft)}
section{padding:140px 40px;position:relative}

/* ---------- BUTTONS ---------- */
.btn{display:inline-flex;align-items:center;gap:14px;padding:16px 26px;border-radius:999px;font-size:12px;letter-spacing:.18em;text-transform:uppercase;font-weight:400;transition:background .25s,color .25s,border-color .25s}
.btn-primary{background:var(--ink);color:var(--paper);border:1px solid var(--ink)}
.btn-primary:hover{background:transparent;color:var(--ink)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn .arrow{width:22px;height:1px;background:currentColor;position:relative}
.btn .arrow::after{content:"";position:absolute;right:0;top:-3px;width:7px;height:7px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}

/* ---------- FOOTER ---------- */
footer{border-top:1px solid var(--hair);padding:48px 40px 40px;background:var(--paper)}
.foot{max-width:1480px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:64px}
.foot h4{font-size:10px;letter-spacing:.28em;text-transform:uppercase;color:var(--soft);font-weight:500;margin:0 0 18px}
.foot ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px;font-size:13px;color:var(--ink-2);font-weight:300}
.foot li a:hover{color:var(--ink)}
.foot__mark .wordmark{text-align:left;font-size:20px}
.foot__mark .sub{text-align:left;margin-top:8px}
.foot__mark p{font-size:13px;color:var(--soft);max-width:36ch;margin:24px 0 0;font-weight:300;line-height:1.6}
.foot__bottom{max-width:1480px;margin:80px auto 0;padding-top:24px;border-top:1px solid var(--hair);display:flex;justify-content:space-between;align-items:center;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--soft)}

/* ---------- PAGE HEADER (sub-pages) ---------- */
.page-head{padding:160px 40px 96px;border-bottom:1px solid var(--hair)}
.page-head__inner{max-width:1480px;margin:0 auto;display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:end}
.page-head .crumb{display:flex;gap:14px;font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--soft);margin-bottom:24px}
.page-head .crumb a:hover{color:var(--ink)}
.page-head .crumb .sep{color:var(--hair)}
.page-head p.lede{max-width:46ch;color:var(--ink-2);font-size:20px;line-height:1.6;font-weight:300;margin:0}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1100px){
  .topbar__inner{grid-template-columns:1fr auto 1fr;padding:14px 24px}
  .meta{display:none}
  .nav{gap:18px}
  section{padding:96px 24px}
  .page-head{padding:100px 24px 60px}
  .page-head__inner{grid-template-columns:1fr;gap:32px}
  .foot{grid-template-columns:1fr 1fr;gap:36px}
}