/* Flight Deals — one stylesheet, no framework.
   System fonts, a single accent colour, and a layout that works at 400px because the owner
   reads this on a phone. Nothing here is load-bearing: the pages are readable unstyled. */

:root {
  --ink: #16181d;
  --ink-soft: #5b616e;
  --line: #e3e6ec;
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --accent: #0b5fff;
  --accent-ink: #ffffff;
  --good: #0a7d43;
  --warn: #a15c00;
  --bad: #b3261e;
  --radius: 10px;
  --wrap: 60rem;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 1rem;
}

a { color: var(--accent); }

h1, h2, h3 { line-height: 1.2; margin: 0 0 .5rem; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }

p { margin: 0 0 .75rem; }

.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 1rem;
  top: .5rem;
  z-index: 10;
  background: var(--accent);
  color: var(--accent-ink);
  padding: .5rem .75rem;
  border-radius: var(--radius);
}

/* -- header ---------------------------------------------------------------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem 1rem;
  padding-top: .75rem;
  padding-bottom: .75rem;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
  margin-right: auto;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--ink-soft);
}
.site-nav a:hover { color: var(--ink); }

.nav-cta {
  background: var(--accent);
  color: var(--accent-ink) !important;
  padding: .35rem .7rem;
  border-radius: var(--radius);
}

.logout-form { display: inline; margin: 0; }

.link-button {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: var(--ink-soft);
  cursor: pointer;
}
.link-button:hover { color: var(--ink); }

/* -- flash ----------------------------------------------------------------- */

.flash {
  margin: .75rem 0 0;
  padding: .6rem .8rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-soft);
}
.flash-success { border-color: #b7e0c8; background: #f0faf4; color: var(--good); }
.flash-error { border-color: #f0c2be; background: #fdf3f2; color: var(--bad); }

/* -- hero ------------------------------------------------------------------ */

.hero {
  padding: 2rem 0 1rem;
}
.hero h1 { font-size: 1.9rem; }
.lede { color: var(--ink-soft); font-size: 1.05rem; max-width: 40rem; }

/* -- forms ----------------------------------------------------------------- */

form.stack { display: block; }

label { display: block; font-weight: 600; margin-bottom: .2rem; }

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="date"],
input[type="number"],
input[type="search"],
select {
  width: 100%;
  max-width: 22rem;
  padding: .5rem .6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  background: var(--bg);
  color: var(--ink);
}

.field { margin-bottom: .9rem; }

.hint { color: var(--ink-soft); font-size: .875rem; margin: .2rem 0 .6rem; }

.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid var(--accent);
  padding: .5rem .9rem;
  border-radius: var(--radius);
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}
.button-quiet {
  background: var(--bg);
  color: var(--ink);
  border-color: var(--line);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: flex-end;
  padding: .9rem 0;
  border-bottom: 1px solid var(--line);
}
.filters .field { margin-bottom: 0; }
.filters input, .filters select { max-width: 12rem; }

details.advanced { margin: .75rem 0; }
details.advanced summary { cursor: pointer; color: var(--ink-soft); }

/* -- deal list ------------------------------------------------------------- */

.deal-list {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
  display: grid;
  gap: .75rem;
}

.deal-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .9rem;
  background: var(--bg);
}

.deal-card h3 { margin-bottom: .15rem; }
.deal-card h3 a { text-decoration: none; }

.deal-price {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
}

.deal-route { color: var(--ink-soft); }

.deal-meta {
  color: var(--ink-soft);
  font-size: .9rem;
  margin: .35rem 0 .5rem;
}

.tags { display: flex; flex-wrap: wrap; gap: .35rem; margin: .4rem 0; }

.tag {
  font-size: .78rem;
  padding: .12rem .45rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--ink-soft);
}
.tag-good { border-color: #b7e0c8; background: #f0faf4; color: var(--good); }
.tag-rare { border-color: #cbd6f5; background: #f2f5fd; color: var(--accent); }
.tag-mistake { border-color: #f0c2be; background: #fdf3f2; color: var(--bad); }
.tag-expired { border-color: var(--line); background: var(--bg-soft); color: var(--ink-soft); }

.score { font-variant-numeric: tabular-nums; }

.empty {
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  color: var(--ink-soft);
  background: var(--bg-soft);
}

/* -- pager ----------------------------------------------------------------- */

.pager {
  display: flex;
  gap: .75rem;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 0 2rem;
}

/* -- detail ---------------------------------------------------------------- */

.detail-grid { display: grid; gap: 1.5rem; }

.detail-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: .3rem .9rem;
  margin: .75rem 0;
}
.detail-list dt { color: var(--ink-soft); }
.detail-list dd { margin: 0; }

.availability {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .75rem;
  background: var(--bg-soft);
}
.availability-live { border-color: #b7e0c8; background: #f0faf4; }
.availability-gone { border-color: #f0c2be; background: #fdf3f2; }

.fine-print { color: var(--ink-soft); font-size: .85rem; }

.inline-form { display: inline; margin: 0; }

/* -- error ----------------------------------------------------------------- */

.error-page { padding: 2rem 0 3rem; }
.error-code {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--line);
  margin: 0;
  font-variant-numeric: tabular-nums;
}
.error-detail { color: var(--ink-soft); }
.error-actions { margin-top: 1.25rem; display: flex; gap: .6rem; flex-wrap: wrap; }

/* -- footer ---------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  padding: 1.25rem 0 2rem;
  color: var(--ink-soft);
  font-size: .9rem;
}
.footer-note { font-size: .85rem; }

/* -- wider screens --------------------------------------------------------- */

@media (min-width: 44rem) {
  h1 { font-size: 1.9rem; }
  .hero h1 { font-size: 2.3rem; }
  .detail-grid { grid-template-columns: 2fr 1fr; }
  .deal-list { grid-template-columns: 1fr 1fr; }
}