/* BookHelicopter — public site.
   The palette, type and components mirror bookhelicopter.com: Inter, one cyan accent,
   stone hairlines, and dark stone bands for the hero and the footer. */

:root {
  --ink:        #212529;   /* headlines and body copy */
  --ink-2:      #475569;
  --mut:        #64748b;
  --faint:      #94a3b8;
  --line:       #e7e5e4;
  --line-soft:  #f1f0ef;
  --paper:      #ffffff;
  --ivory:      #fafaf9;   /* the alternate band */
  --ivory-2:    #f5f5f4;
  --accent:     #0891b2;   /* the one brand colour */
  --accent-2:   #0e7490;   /* and its pressed state */
  --accent-soft:#ecfeff;
  --navy:       #1c1917;   /* dark bands */
  --navy-2:     #0c0a09;   /* hero and footer ground */
  --rule:       #0891b2;   /* the hairline in front of every eyebrow */
  --ok:#047857; --ok-bg:#ecfdf5; --warn:#b45309; --warn-bg:#fffbeb; --no:#991b1b; --no-bg:#fef2f2;
  --r: 6px;
  --r-lg: 10px;
  --shadow: 0 10px 28px rgba(15,23,42,.06);
  --shadow-lg: 0 18px 44px rgba(15,23,42,.14);
  --ease: cubic-bezier(.22,.61,.36,1);
  --gut: clamp(20px, 5vw, 40px);
  --max: 1280px;
  --hdr: 66px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--ivory); color: var(--ink);
  font: 15px/1.65 Inter, ui-sans-serif, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
img, svg { max-width: 100%; }

/* ---------- type ---------- */
main h1, main h2, main h3, main .display {
  font-family: inherit; letter-spacing: -.025em; font-weight: 800; line-height: 1.1; margin: 0 0 .5rem;
}
main h1 { font-size: clamp(2.1rem, 4.4vw, 3.4rem); }
main h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); letter-spacing: -.02em; }
main h3 { font-size: 1.0625rem; letter-spacing: -.015em; }
main p { margin: 0 0 1rem; }
main .lede { font-size: clamp(1rem, 1.25vw, 1.15rem); color: var(--ink-2); max-width: 60ch; }
main .muted { color: var(--mut); font-size: .875rem; }
main .eyebrow {
  font-size: .6875rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); display: flex; align-items: center; gap: .65rem; margin-bottom: .9rem;
}
main .eyebrow:before { content: ""; width: 24px; height: 1px; background: var(--rule); }

/* ---------- shell ---------- */
main .wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gut); }
main main main > :last-child:not(.band) { padding-bottom: 4rem; }
main section.band:last-child { padding-bottom: clamp(3rem, 6vw, 5rem); }
main section.band { padding: clamp(3.5rem, 8vw, 7rem) 0; }
main section.band + section.band { border-top: 1px solid var(--line-soft); }
main .band.paper { background: var(--paper); }

/* ---------- trade strip above the marketing header ---------- */
.bh-account { background: #1c1917; color: #a8a29e; font-size: .6875rem; }
.bh-account-in { max-width: 1280px; margin: 0 auto; padding: .4rem 1rem;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1rem; }
.bh-account-in i { color: #0891b2; margin-right: .3rem; }
.bh-account nav { display: flex; flex-wrap: wrap; gap: .25rem 1rem; }
.bh-account a { color: #d6d3d1; text-decoration: none; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; }
.bh-account a:hover { color: #fff; }
@media (min-width: 640px) { .bh-account-in { padding-left: 1.5rem; padding-right: 1.5rem; } }
@media (min-width: 1024px) { .bh-account-in { padding-left: 2rem; padding-right: 2rem; } }

/* ---------- buttons ---------- */
main .btn {
  --bg: var(--accent); --fg: #fff; --bd: var(--accent);
  display: inline-flex; align-items: center; gap: .55rem; justify-content: center;
  padding: .85rem 1.5rem; border: 1px solid var(--bd); border-radius: var(--r);
  background: var(--bg); color: var(--fg); font: inherit; font-size: .78125rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; text-decoration: none; cursor: pointer;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .2s, color .2s, border-color .2s;
}
main .btn:hover { --bg: var(--accent-2); --bd: var(--accent-2);
  transform: translateY(-1px); box-shadow: 0 12px 24px -14px rgba(8,145,178,.9); }
main .btn:active { transform: translateY(0); }
main .btn .arw { transition: transform .3s var(--ease); }
main .btn:hover .arw { transform: translateX(3px); }
main .btn.ghost { --bg: transparent; --fg: var(--ink); --bd: #cbd5e1; }
main .btn.ghost:hover { --bg: var(--accent); --fg: #fff; --bd: var(--accent); }
main .btn.dark { --bg: transparent; --fg: #fff; --bd: rgba(255,255,255,.45); }
main .btn.dark:hover { --bg: #fff; --fg: var(--ink); --bd: #fff; box-shadow: none; }
main .btn.light { --bg: #fff; --fg: var(--ink); --bd: #fff; }
main .btn.light:hover { --bg: var(--accent); --fg: #fff; --bd: var(--accent); }
main .btn.sm { padding: .55rem .9rem; font-size: .6875rem; }
main .btn[disabled] { opacity: .45; pointer-events: none; }
main .btn-row { display: flex; flex-wrap: wrap; gap: .75rem; }

/* ---------- scroll motion ---------- */
/* Only hidden once JS has confirmed it can reveal them again. Without JS, or if it
   throws, the page reads as plain HTML rather than a blank sheet. */
main .js [data-reveal] { opacity: 0; transform: translateY(18px); }
main .js [data-reveal].in { opacity: 1; transform: none;
  transition: opacity .7s var(--ease), transform .7s var(--ease); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  main .js [data-reveal], main .js [data-reveal].in { opacity: 1; transform: none; transition: none; }
}

/* ---------- service cards ---------- */
main .services { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(258px, 1fr)); }
a.service { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg);
  box-shadow: var(--shadow); padding: 1.35rem; text-decoration: none; color: inherit;
  display: flex; flex-direction: column; gap: .35rem; min-height: 196px;
  transition: box-shadow .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease); }
a.service:hover { border-color: rgba(8,145,178,.5); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
a.service .ico { display: grid; place-items: center; width: 40px; height: 40px; margin-bottom: .5rem;
  border-radius: var(--r); background: var(--accent-soft); font-size: 1.15rem; }
a.service b { font-weight: 800; font-size: .9375rem; letter-spacing: -.015em; }
a.service span { color: var(--mut); font-size: .8125rem; line-height: 1.5; }
a.service .go { margin-top: auto; padding-top: .9rem; font-size: .6875rem; font-weight: 800;
  letter-spacing: .08em; text-transform: uppercase; color: var(--accent);
  display: inline-flex; align-items: center; gap: .35rem; transition: gap .3s var(--ease); }
a.service .go:after { content: "\2192"; }
a.service:hover .go { gap: .6rem; color: var(--accent-2); }
a.service.flagship { grid-column: span 2; background: var(--navy); border-color: var(--navy); color: #fff; }
a.service.flagship .ico { background: rgba(255,255,255,.1); }
a.service.flagship span { color: #a8a29e; }
a.service.flagship .go { color: var(--accent); }
a.service.flagship:hover { background: #262220; border-color: #262220; }
@media (max-width: 640px) { a.service.flagship { grid-column: span 1; } }
@media (max-width: 560px) { main footer.site .wrap { grid-template-columns: minmax(0,1fr); } }

/* ---------- departures / booking engine ---------- */
main .calendar { display: grid; grid-template-columns: repeat(auto-fit, minmax(104px, 1fr));
  background: var(--paper); border: 1px solid var(--line); border-top-width: 0; border-left-width: 0;
  border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow); }
main .day { background: var(--paper); padding: .9rem .75rem; text-decoration: none; color: inherit;
  display: block; text-align: center; position: relative;
  border-top: 1px solid var(--line); border-left: 1px solid var(--line);
  transition: background .3s var(--ease); }
main .day:hover { background: var(--accent-soft); }
main .day.on { background: var(--accent); color: #fff; }
main .day.on .d-fare { color: #d7f4fb; }
main .day .d-dow { font-size: .625rem; letter-spacing: .14em; text-transform: uppercase; color: var(--mut); }
main .day.on .d-dow { color: #a5e4f2; }
main .day .d-num { font-size: 1.05rem; font-weight: 560; letter-spacing: -.02em; margin: .15rem 0; }
main .day .d-fare { font-size: .75rem; color: var(--ink-2); }
main .day.out { opacity: .4; }
main .day .d-bar { position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--ok); }
main .day .d-bar.warn { background: var(--warn); } main .day .d-bar.no { background: var(--no); }

main table.list { width: 100%; border-collapse: collapse; background: var(--paper);
  border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden;
  box-shadow: var(--shadow); font-size: .875rem; }
main table.list th { text-align: left; padding: .8rem 1rem; font-size: .625rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--mut); font-weight: 800; background: var(--ivory-2);
  border-bottom: 1px solid var(--line); white-space: nowrap; }
main table.list td { padding: 1rem; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
main table.list tr:last-child td { border-bottom: 0; }
main table.list tbody tr { transition: background .25s; }
main table.list tbody tr:hover { background: var(--ivory); }
main td.num, main th.num { text-align: right; font-variant-numeric: tabular-nums; }
main .nowrap { white-space: nowrap; }
main .scroll { overflow-x: auto; }

main .pill { display: inline-flex; align-items: center; gap: .4rem; font-size: .75rem; letter-spacing: .02em;
  padding: .2rem .6rem; border-radius: 100px; background: var(--ivory-2); color: var(--ink-2); }
main .pill:before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
main .pill.ok { background: var(--ok-bg); color: var(--ok); }
main .pill.warn { background: var(--warn-bg); color: var(--warn); }
main .pill.no { background: var(--no-bg); color: var(--no); }

main .fare { font-size: 1.35rem; font-weight: 800; letter-spacing: -.03em; color: var(--accent-2); }
main .fare small { font-size: .8125rem; font-weight: 400; color: var(--mut); letter-spacing: 0; }

/* ---------- cards, panels, forms ---------- */
main .card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg);
  box-shadow: var(--shadow); padding: 1.5rem; }
main .grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
main .split { display: grid; grid-template-columns: 1fr 400px; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }
main .split aside { position: sticky; top: 96px; }
@media (max-width: 900px) { main .split { grid-template-columns: 1fr; } main .split aside { position: static; } }

main .field { margin-bottom: 1rem; }
main label { display: block; font-size: .625rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--mut); margin-bottom: .35rem; font-weight: 800; }
main input, main select, main textarea {
  width: 100%; font: inherit; font-size: .9375rem; padding: .7rem .85rem; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--r);
  transition: border-color .25s, box-shadow .25s;
}
main input:hover, main select:hover, main textarea:hover { border-color: #cbd5e1; }
main input:focus, main select:focus, main textarea:focus { outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft); }
main input[type=file] { padding: .5rem; }
main .field.bad input, main .field.bad select, main .field.bad textarea { border-color: var(--no); background: #fffbfb; }
main .field .err { display: block; margin-top: .35rem; font-size: .8125rem; color: var(--no); text-transform: none;
  letter-spacing: 0; }
main form.row { display: flex; flex-wrap: wrap; gap: .85rem; align-items: flex-end; }
main form.row > div { flex: 1 1 150px; min-width: 0; }
main form.row .btn { flex: 0 0 auto; }
main form.inline { display: inline; }
main button.link { background: none; border: 0; padding: 0; color: var(--accent); font: inherit;
  font-size: .8125rem; cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }
main button.link.danger { color: var(--no); }

main .flash { background: var(--accent-soft); border: 1px solid rgba(8,145,178,.3); border-radius: var(--r);
  padding: .8rem 1.1rem; margin: 0 0 1.5rem; font-size: .875rem; color: var(--accent-2); font-weight: 600; }
main .empty { padding: 2.5rem 1rem; text-align: center; color: var(--mut); }

/* ---------- steps, ticks, key-values, timeline ---------- */
main .steps { list-style: none; counter-reset: s; padding: 0; margin: 0;
  display: grid; gap: .85rem; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
main .steps li { counter-increment: s; background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 1.25rem; }
main .steps li:before { content: "0" counter(s); display: block; font-size: .6875rem; letter-spacing: .18em;
  color: var(--accent); margin-bottom: .6rem; font-weight: 800; }
main .steps b { display: block; font-weight: 800; margin-bottom: .2rem; }
main .steps span { color: var(--mut); font-size: .875rem; }
main .ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
main .ticks li { position: relative; padding-left: 1.35rem; font-size: .9375rem; color: var(--ink-2); }
main .ticks li:before { content: ""; position: absolute; left: 0; top: .6em; width: 7px; height: 1px;
  background: var(--rule); }
main .ticks.warn { grid-template-columns: 1fr; }
main dl.kv { display: grid; grid-template-columns: 190px 1fr; gap: .5rem 1.25rem; margin: 0; font-size: .9375rem; }
main dl.kv dt { color: var(--mut); font-size: .875rem; } main dl.kv dd { margin: 0; }
main dl.kv.tight { grid-template-columns: 170px 1fr; gap: .3rem 1rem; font-size: .875rem; margin-top: .9rem; }
main ul.plain { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; font-size: .9375rem; }
main ul.timeline { list-style: none; padding-left: 1rem; margin: 0; border-left: 1px solid var(--line);
  display: grid; gap: .85rem; }
main ul.timeline li { position: relative; font-size: .8125rem; }
main ul.timeline li:before { content: ""; position: absolute; left: -1.3rem; top: .45rem; width: 5px; height: 5px;
  border-radius: 50%; background: var(--rule); }
main ul.timeline b { display: block; font-weight: 500; text-transform: capitalize; }
main ul.docs { list-style: none; padding: 0; margin: 0 0 1rem; display: grid; gap: .5rem; }
main ul.docs li { display: flex; flex-wrap: wrap; gap: .75rem; align-items: baseline; font-size: .875rem;
  padding: .6rem .8rem; border: 1px solid var(--line); background: var(--ivory); }
main ul.docs li form { margin-left: auto; }
main .crumbs { font-size: .8125rem; color: var(--mut); margin-bottom: 1.25rem; }

/* the page-head bar the enquiry screens use — the admin skin had it, the public one did not */
main .bar { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center;
  justify-content: space-between; margin-bottom: 1.25rem; }
main .bar > div { display: flex; gap: .5rem; align-items: center; }
main .bar h1, main .bar h2 { margin: 0; }
main td.row-actions { text-align: right; white-space: nowrap; }
main .crumbs a { text-decoration: none; } main .crumbs a:hover { text-decoration: underline; }

/* stat strip */
/* min() so the track floor collapses on a narrow screen. A bare minmax(150px,1fr)
   gives this grid a 316px min-content, which propagates up through .split's 1fr
   track and pushes a 320px page sideways. */
main .stats { display: grid; gap: .75rem; grid-template-columns: repeat(auto-fit, minmax(min(150px, 100%), 1fr)); }
main .split > * { min-width: 0; }
main .stats div { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg);
  box-shadow: var(--shadow); padding: 1.1rem 1.25rem; }
main .stats span { display: block; font-size: .6875rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--mut); margin-bottom: .35rem; }
main .stats b { font-size: 1.5rem; font-weight: 800; letter-spacing: -.03em; }

@media (max-width: 1279px) {
  main .mega-in { grid-template-columns: 1fr; }
  main .mega-list { grid-template-columns: repeat(3, 1fr); }
  main .mega-rail { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 1rem; }
}
@media (max-width: 900px) {
  main .engines { grid-template-columns: 1fr; }
  main footer.site .wrap { grid-template-columns: minmax(0,1fr) minmax(0,1fr); }
  main dl.kv, main dl.kv.tight { grid-template-columns: 1fr; gap: .1rem .5rem; }
  main dl.kv dd { margin-bottom: .6rem; }
}

/* ---------------------------------------------------------------------------
   Sign-in screen. One card with two panels; the switch is a pair of radios,
   because script-src is 'self' with no inline JS and a credentials page is the
   last place to start relaxing that for a tab strip. Keyboard users get the
   radio group's own arrow-key behaviour for free.
   --------------------------------------------------------------------------- */
main .authbox > input[name="authtab"] { position: absolute; width: 1px; height: 1px;
  opacity: 0; pointer-events: none; margin: 0; }
main .authtabs { display: grid; grid-template-columns: 1fr 1fr; gap: .25rem; margin-bottom: 1.35rem;
  padding: .25rem; background: var(--ivory-2); border-radius: var(--r); }
main .authtabs label { margin: 0; text-align: center; cursor: pointer; user-select: none;
  padding: .55rem .5rem; border-radius: calc(var(--r) - 2px); font-size: .6875rem; color: var(--mut);
  transition: background .2s, color .2s, box-shadow .2s; }
main #bh-tab-in:checked ~ .authtabs label[for="bh-tab-in"],
main #bh-tab-up:checked ~ .authtabs label[for="bh-tab-up"] {
  background: var(--paper); color: var(--ink); box-shadow: 0 1px 2px rgba(15,23,42,.08); }
/* The radio itself is off-screen, so its focus ring has to be drawn on the label. */
main #bh-tab-in:focus-visible ~ .authtabs label[for="bh-tab-in"],
main #bh-tab-up:focus-visible ~ .authtabs label[for="bh-tab-up"] {
  box-shadow: 0 0 0 3px var(--accent-soft); color: var(--ink); }
main .authbox .pane { display: none; }
main #bh-tab-in:checked ~ .pane-in,
main #bh-tab-up:checked ~ .pane-up { display: block; }
main .authbox .hint { display: block; margin-top: .35rem; font-size: .8125rem; color: var(--faint);
  text-transform: none; letter-spacing: 0; }

/* The flying-along illustration. Decorative, aria-hidden, and the whole thing
   holds still for anyone who asked for that. */
main .auth .sky { margin-top: 2rem; max-width: 420px; }
main .auth .sky svg { display: block; width: 100%; height: auto; }
main .auth .heli { transform: translate(208px, 100px); animation: bh-hover 3.4s ease-in-out infinite; }
main .auth .rotor { transform-origin: 0 -30px; animation: bh-rotor .5s linear infinite; }
main .auth .cloud { animation: bh-drift linear infinite; }
main .auth .c1 { animation-duration: 15s; }
main .auth .c2 { animation-duration: 21s; }
main .auth .c3 { animation-duration: 27s; }
@keyframes bh-hover { 50% { transform: translate(208px, 86px); } }
@keyframes bh-rotor { 50% { transform: scaleX(.08); } }
@keyframes bh-drift { to { transform: translateX(-480px); } }
@media (prefers-reduced-motion: reduce) {
  main .auth .heli, main .auth .rotor, main .auth .cloud { animation: none; }
}
/* On a phone the form is why anyone opened this page, so it goes first — the
   copy and the illustration are context, and context can wait until after the
   thing you came to do. */
@media (max-width: 900px) { main .auth .split aside { order: -1; } }

/* ---------- viewing as another user ----------
   Deliberately loud and pinned to the top of the viewport: an admin who forgets
   they are inside someone else's account reads that account's empty screens as
   the platform being empty, and reports it as a bug. It is fixed rather than
   sticky because both shells already have something sticky at top 0 — Tabler's
   sidebar here, the site header there — and two of those fight over the same
   pixel. They are pushed down by its height instead. */
:root { --imp-h: 2.25rem; }
@media (max-width: 40rem) { :root { --imp-h: 3.4rem; } }
body:has(.imp-bar) { padding-top: var(--imp-h); }
.imp-bar { position: fixed; top: 0; left: 0; right: 0; height: var(--imp-h); z-index: 1100;
  display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; justify-content: center;
  padding: 0 1rem; background: #b45309; color: #fff; font-size: .8125rem; line-height: 1.25; }
.imp-bar b { font-weight: 800; }
.imp-bar form { margin: 0; display: inline; }
.imp-bar button { background: #fff; color: #b45309; border: 0; border-radius: 6px;
  padding: .2rem .7rem; font: inherit; font-weight: 800; cursor: pointer; }
.imp-bar button:hover { background: #fffbeb; }
/* The two things that would otherwise sit underneath it. */
.imp-bar ~ .page .navbar-vertical { top: var(--imp-h); }
.imp-bar ~ header.bh-site-header { top: var(--imp-h); }
@media print { .imp-bar { display: none; } body:has(.imp-bar) { padding-top: 0; } }