/* Mobile Weather — shared styles. Tokens on :root, dark mode via prefers-color-scheme. */
:root {
  --bg: #f6f8fb; --surface: #ffffff; --surface-2: #eef2f7; --text: #0f172a; --muted: #526077;
  --line: #d9e0ea; --accent: #0f7ea6; --accent-ink: #ffffff; --accent-soft: #e3f1f7;
  --mono-bg: #0f172a; --mono-ink: #cfe8f3; --mono-dim: #7fa6b8;
  --vfr: #1a7f5a; --mvfr: #1d5fbf; --ifr: #c2410c; --lifr: #a21caf; --warn: #b45309;
  --shadow: 0 1px 2px rgba(15,23,42,.06), 0 8px 24px rgba(15,23,42,.06);
  --radius: 14px; --radius-s: 10px;
  /* chart series (validated with the dataviz palette checker for each surface) */
  --chart-1: #0f7ea6; --chart-2: #b45309;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1220; --surface: #111a2b; --surface-2: #17233a; --text: #e7edf5; --muted: #9fb0c6;
    --line: #263147; --accent: #3fb3dc; --accent-ink: #061018; --accent-soft: #14304a;
    --mono-bg: #060b14; --mono-ink: #cfe8f3; --mono-dim: #6f93a6;
    --vfr: #4cc490; --mvfr: #6ea8ff; --ifr: #ff8a5b; --lifr: #e879f9; --warn: #f5b04c;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
    --chart-1: #2f8fd6; --chart-2: #c9702a;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1220; --surface: #111a2b; --surface-2: #17233a; --text: #e7edf5; --muted: #9fb0c6;
  --line: #263147; --accent: #3fb3dc; --accent-ink: #061018; --accent-soft: #14304a;
  --mono-bg: #060b14; --mono-ink: #cfe8f3; --mono-dim: #6f93a6;
  --vfr: #4cc490; --mvfr: #6ea8ff; --ifr: #ff8a5b; --lifr: #e879f9; --warn: #f5b04c;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  --chart-1: #2f8fd6; --chart-2: #c9702a;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 72px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; overflow-x: hidden; }
a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }
img, svg { max-width: 100%; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.wrap { max-width: 680px; margin: 0 auto; padding: 0 16px; }
.wrap.wide { max-width: 860px; }
.sr { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Header / nav */
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 700; letter-spacing: .2px; white-space: nowrap; }
.brand svg { width: 26px; height: 26px; flex: none; }
.nav { display: flex; gap: 4px; align-items: center; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600; padding: 8px 10px; border-radius: 8px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); background: var(--surface-2); }
.zulu { font-variant-numeric: tabular-nums; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; color: var(--muted); white-space: nowrap; }
.zulu b { color: var(--text); font-weight: 600; }
@media (max-width: 600px) { .nav a { padding: 8px 7px; font-size: 13px; } .zulu { display: none; } .nav { overflow-x: auto; scrollbar-width: none; } .nav::-webkit-scrollbar { display: none; } }
@media (max-width: 440px) { .brand .brand-text { display: none; } }

/* Typography */
h1 { font-size: clamp(28px, 6vw, 40px); line-height: 1.12; letter-spacing: -.02em; margin: 0 0 12px; }
h2 { font-size: 22px; line-height: 1.25; margin: 32px 0 10px; letter-spacing: -.01em; }
h3 { font-size: 17px; margin: 22px 0 8px; }
p { margin: 0 0 14px; }
.lede { font-size: 18px; color: var(--muted); max-width: 36em; }
.eyebrow { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
main { padding: 28px 0 40px; }
.hero { padding: 16px 0 8px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }
ul.clean { list-style: none; padding: 0; margin: 0; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose h2 { margin-top: 36px; }
blockquote { margin: 16px 0; padding: 8px 0 8px 16px; border-left: 3px solid var(--accent); color: var(--muted); }

/* Cards & grids */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.card + .card { margin-top: 12px; }
.grid { display: grid; gap: 12px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.tool-card { display: block; text-decoration: none; color: inherit; }
.tool-card:hover { border-color: var(--accent); }
.tool-card b { display: block; font-size: 17px; margin-bottom: 4px; }
.tool-card span { color: var(--muted); font-size: 15px; }
.kv { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; }
.kv .k { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.kv .v { font-size: 17px; font-weight: 600; }
.kv .v small { font-weight: 400; color: var(--muted); font-size: 13px; }
@media (min-width: 560px) { .kv.four { grid-template-columns: repeat(4, 1fr); } .kv.three { grid-template-columns: repeat(3, 1fr); } }

/* Mono blocks (raw METAR/TAF) */
.mono-block { background: var(--mono-bg); color: var(--mono-ink); border-radius: var(--radius-s); padding: 12px 14px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13.5px; line-height: 1.5; overflow-wrap: anywhere; }
.mono-block .dim { color: var(--mono-dim); }

/* Badges */
.badge { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .04em; padding: 3px 8px; border-radius: 999px; border: 1px solid transparent; vertical-align: middle; }
.badge.vfr { color: var(--vfr); border-color: currentColor; }
.badge.mvfr { color: var(--mvfr); border-color: currentColor; }
.badge.ifr { color: var(--ifr); border-color: currentColor; }
.badge.lifr { color: var(--lifr); border-color: currentColor; }
.badge.neutral { color: var(--muted); border-color: var(--line); }
.badge.warn { color: var(--warn); border-color: currentColor; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; vertical-align: 1px; }
.dot.vfr { background: var(--vfr); } .dot.mvfr { background: var(--mvfr); } .dot.ifr { background: var(--ifr); } .dot.lifr { background: var(--lifr); }

/* Forms */
.field { display: flex; gap: 8px; flex-wrap: wrap; }
input[type="text"], input[type="search"], input[type="email"], input[type="date"], select {
  font: inherit; padding: 11px 13px; border-radius: var(--radius-s); border: 1px solid var(--line); background: var(--surface); color: var(--text); min-width: 0;
}
input[type="search"] { flex: 1 1 150px; }
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button, .btn { font: inherit; font-weight: 600; padding: 11px 16px; border-radius: var(--radius-s); border: 1px solid transparent; background: var(--accent); color: var(--accent-ink); cursor: pointer; text-decoration: none; display: inline-block; }
button.secondary, .btn.secondary { background: var(--surface); color: var(--text); border-color: var(--line); }
button.small, .btn.small { padding: 6px 10px; font-size: 13px; }
button:disabled { opacity: .55; cursor: default; }
.hint { font-size: 13px; color: var(--muted); margin: 8px 0 0; min-height: 1.2em; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
label.lbl { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { text-align: left; padding: 8px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.best td { background: var(--accent-soft); }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Search results / lists */
.results { list-style: none; margin: 8px 0 0; padding: 0; }
.results li a { display: flex; justify-content: space-between; gap: 12px; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-s); background: var(--surface); text-decoration: none; color: inherit; margin-bottom: 6px; }
.results li a:hover { border-color: var(--accent); }
.results .id { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-weight: 700; }
.results .meta { color: var(--muted); font-size: 13px; white-space: nowrap; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-block; padding: 6px 10px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); text-decoration: none; color: inherit; font-size: 14px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.chip:hover { border-color: var(--accent); }

/* Timeline (TAF) */
.timeline { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); }
.timeline li { position: relative; padding: 4px 0 14px 18px; }
.timeline li::before { content: ""; position: absolute; left: -7px; top: 10px; width: 12px; height: 12px; border-radius: 50%; background: var(--line); }
.timeline li.vfr::before { background: var(--vfr); } .timeline li.mvfr::before { background: var(--mvfr); } .timeline li.ifr::before { background: var(--ifr); } .timeline li.lifr::before { background: var(--lifr); }
.timeline .when { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.timeline .what { font-size: 15px; }

/* Notices, ads, footer */
.notice { border-left: 3px solid var(--line); padding: 4px 0 4px 14px; margin: 24px 0; color: var(--muted); font-size: 14px; }
.notice b { color: var(--text); }
.ad-slot { min-height: 90px; border: 1px dashed var(--line); border-radius: var(--radius-s); display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 12px; margin: 20px 0; }
.ad-slot:empty { display: none; }
.status { font-size: 14px; color: var(--muted); }
.status.error { color: var(--ifr); }
.site-footer { padding: 24px 0 40px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); margin-top: 8px; }
.site-footer p { margin: 6px 0; }
.site-footer nav a { margin-right: 12px; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--surface); padding: 8px 12px; border-radius: 8px; z-index: 30; }
.skip:focus { left: 16px; }

/* Charts */
.chart { width: 100%; height: auto; display: block; }
.chart text { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; fill: var(--muted); font-size: 11px; }
.chart .bar { fill: var(--chart-1); opacity: .8; }
.chart .bar.hi { opacity: 1; stroke: var(--text); stroke-width: 1.5; }
.chart .line { fill: none; stroke-width: 2; stroke-linejoin: round; }
.chart .line.s1 { stroke: var(--chart-2); }
.chart .line.s2 { stroke: var(--chart-1); }
.chart .lbl { fill: var(--text); font-weight: 600; }
.chart .sel { stroke: var(--text); stroke-dasharray: 3 3; }
.tip { position: absolute; pointer-events: none; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 8px; padding: 6px 9px; font-size: 13px; transform: translate(-50%, -110%); white-space: nowrap; z-index: 5; }
.chart-wrap { position: relative; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .marker { fill: var(--text); }
.legend { display: flex; gap: 16px; font-size: 13px; color: var(--muted); margin-top: 6px; flex-wrap: wrap; }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin: 14px 0; }
.stat { background: var(--surface-2); border-radius: var(--radius-s); padding: 12px; }
.stat .k { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.stat .v { font-size: 24px; font-weight: 700; line-height: 1.2; margin-top: 2px; }
.stat .v small { font-size: 13px; font-weight: 400; color: var(--muted); }