/* Tornado Forecast Challenge (stormchase.com/challenge): the StormChase "Intercept" look shared with /hq, /shop,
   /apps and /legal. Dark by default; the sitewide light theme (html[data-mode="light"], set by /assets/mode.js)
   swaps the tokens at the bottom. Every text color is WCAG AA (4.5:1) or better in both themes. */
:root {
  --bg: #050608; --bg2: #0b0e12;
  --glass: rgba(16, 21, 27, .72); --glass-hi: rgba(26, 33, 42, .82);
  --edge: rgba(125, 160, 190, .16); --edge-hi: rgba(79, 216, 255, .45);
  --t: #e8eef4; --soft: #b9c4cf; --m: #8996a3; --faint: #7b8794;
  --a: #4fd8ff; --glow: rgba(79, 216, 255, .45); --a-ink: #00141b;
  --hot: #ffb547; --hot-text: #ffb547; --hot-ink: #160d00; --hot-hover: #ffc46b;
  --live: #ff3b47; --ok: #3dffa2; --err: #ff8f96;
  --field: rgba(0, 0, 0, .4); --pop: #0d1117; --shade: rgba(0, 0, 0, .6);
  --bar-a: rgba(5, 6, 8, .94); --bar-b: rgba(5, 6, 8, .72); --bar-solid: rgba(5, 6, 8, .97); --glow-top: #121a24;
  --sans: "Barlow", ui-sans-serif, system-ui, sans-serif;
  --cond: "Barlow Condensed", "Arial Narrow", ui-sans-serif, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; color: var(--t); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased;
  background: radial-gradient(120% 80% at 70% -10%, var(--glow-top) 0%, var(--bg) 55%) fixed, var(--bg); overflow-x: hidden; }
a { color: var(--a); }
::selection { background: rgba(79, 216, 255, .3); }
:focus-visible { outline: 2px solid var(--a); outline-offset: 3px; }
[hidden] { display: none !important; }

/* Corner frame */
.fr i { position: fixed; width: 18px; height: 18px; z-index: 40; pointer-events: none; border: 0 solid var(--edge-hi); opacity: .7; }
.fr i:nth-child(1) { top: 8px; left: 8px; border-width: 1px 0 0 1px; } .fr i:nth-child(2) { top: 8px; right: 8px; border-width: 1px 1px 0 0; }
.fr i:nth-child(3) { bottom: 8px; left: 8px; border-width: 0 0 1px 1px; } .fr i:nth-child(4) { bottom: 8px; right: 8px; border-width: 0 1px 1px 0; }

/* Top bar */
.bar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 14px 18px; flex-wrap: wrap; padding: 18px 22px 12px;
  background: linear-gradient(to bottom, var(--bar-a), var(--bar-b)); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--edge); }
.brand { display: flex; align-items: center; gap: 12px; min-height: 41px; color: var(--t); }
.brand a { color: inherit; text-decoration: none; }
.brand-home { display: flex; align-items: center; gap: 12px; }
.brand > .word { margin-left: calc(.45em - 12px); }
.mark { width: 30px; height: 30px; fill: #4fd8ff; filter: drop-shadow(0 0 6px var(--glow)); }
.word { font-family: var(--cond); font-size: 21px; letter-spacing: .32em; line-height: 1; display: flex; gap: .45em; white-space: nowrap; }
.word b { font-weight: 700; }
.word span { color: var(--a); font-weight: 500; text-shadow: 0 0 14px var(--glow); }
.nav { display: flex; margin-left: auto; border: 1px solid var(--edge); border-radius: 8px; background: var(--glass); }
.nav a { font: 600 .86rem var(--cond); letter-spacing: .16em; text-transform: uppercase; color: var(--t); text-decoration: none; padding: 8px 12px; }
.nav a + a { border-left: 1px solid var(--edge); }
.nav a:hover, .nav a[aria-current] { color: var(--a); }
.nav a[aria-current] { box-shadow: inset 0 -2px 0 var(--a); }
.site { display: flex; gap: 2px; }
.site a { font: 600 .8rem var(--cond); letter-spacing: .16em; text-transform: uppercase; color: var(--m); text-decoration: none; padding: 8px 9px; }
.site a:hover { color: var(--t); }
.sm { position: relative; display: none; }
.sm summary { list-style: none; cursor: pointer; width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--edge); border-radius: 8px; background: var(--glass); }
.sm summary::-webkit-details-marker { display: none; }
.sm summary svg { width: 18px; height: 18px; fill: none; stroke: var(--t); stroke-width: 1.5; stroke-linecap: round; }
.sm[open] summary { border-color: var(--edge-hi); }
.sm-pop { position: absolute; right: 0; top: 48px; z-index: 50; min-width: 230px; padding: 6px; background: var(--pop); border: 1px solid var(--edge); border-radius: 10px; box-shadow: 0 18px 40px var(--shade); }
.sm-pop a { display: block; padding: 11px 14px; border-radius: 6px; font: 600 .95rem var(--cond); letter-spacing: .16em; text-transform: uppercase; color: var(--t); text-decoration: none; }
.sm-pop a:hover { background: rgba(79, 216, 255, .08); color: var(--a); }
.sm-legal { margin-top: 6px; padding-top: 6px; border-top: 1px solid var(--edge); }
.sm-legal a { font: .74rem var(--mono); letter-spacing: .04em; text-transform: none; color: var(--m); padding: 8px 14px; }

/* Page */
main { position: relative; z-index: 1; max-width: 980px; margin: 0 auto; padding: 28px 22px 48px; }
main.wide { max-width: 1240px; }
h1, h2, h3 { font-family: var(--cond); text-transform: uppercase; line-height: 1; margin: 0 0 .5em; }
h1 { font-weight: 700; letter-spacing: .02em; font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-weight: 600; letter-spacing: .06em; font-size: 1.35rem; margin-top: 32px; color: var(--t); }
h3 { font-weight: 600; letter-spacing: .1em; font-size: 1.05rem; color: var(--hot-text); }
p, li { color: var(--soft); }
b, strong { color: var(--t); }
.muted { color: var(--m); font-family: var(--mono); font-size: .78rem; letter-spacing: .02em; }
.eyebrow { font: 500 .72rem var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--a); margin: 0 0 8px; }
.card { background: var(--glass); border: 1px solid var(--edge); border-radius: 10px; padding: 18px 20px; margin: 14px 0; }
.card > :first-child { margin-top: 0; } .card > :last-child { margin-bottom: 0; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid .card { margin: 0; } .grid p { margin: 0; font-size: .95rem; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.grid2 > .card { margin: 0; }
.grid2 > div > .card:first-child { margin-top: 0; }

/* Tables */
table { border-collapse: collapse; width: 100%; background: var(--glass); border: 1px solid var(--edge); border-radius: 10px; overflow: hidden; }
td, th { padding: 10px 12px; border-bottom: 1px solid var(--edge); text-align: left; }
tr:last-child td { border-bottom: 0; }
th { font: 500 .68rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--m); }
td.n, th.n { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
td a { color: var(--t); text-decoration: none; } td a:hover { color: var(--a); text-decoration: underline; }
tr.me td { background: rgba(79, 216, 255, .07); }
.tablewrap { overflow-x: auto; }

/* Tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 10px; }
.tabs a { padding: 6px 12px; border: 1px solid var(--edge); border-radius: 6px; background: var(--glass); font: 600 .82rem var(--cond); letter-spacing: .14em; text-transform: uppercase; text-decoration: none; color: var(--m); }
.tabs a:hover { color: var(--t); }
.tabs a.on { color: var(--a); border-color: var(--edge-hi); box-shadow: 0 0 18px rgba(79, 216, 255, .14); }

/* Forms */
form { margin: 14px 0; }
label { display: block; font: 500 .72rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--m); margin: 14px 0 6px; }
label.inline, .check { display: flex; align-items: center; gap: 10px; font: 400 .95rem var(--sans); letter-spacing: 0; text-transform: none; color: var(--soft); margin: 10px 0; cursor: pointer; }
input, select, textarea, button { font: inherit; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=search], input:not([type]), select {
  width: 100%; max-width: 440px; padding: 10px 12px; border-radius: 6px; border: 1px solid var(--edge-hi); background: var(--field); color: var(--t); }
input:focus, select:focus { outline: none; border-color: var(--a); box-shadow: 0 0 0 3px rgba(79, 216, 255, .15); }
input[type=checkbox], input[type=radio] { width: 18px; height: 18px; accent-color: var(--a); flex: none; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.row > div { flex: 1; min-width: 140px; }
.row input { max-width: none; }
button, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 20px; border-radius: 6px; border: 0; cursor: pointer;
  background: var(--hot); color: var(--hot-ink); font: 700 .95rem var(--cond); letter-spacing: .16em; text-transform: uppercase; text-decoration: none; }
button:hover, .button:hover { background: var(--hot-hover); }
button.ghost, .button.ghost { background: transparent; color: var(--a); border: 1px solid var(--edge-hi); }
button.ghost:hover, .button.ghost:hover { background: rgba(79, 216, 255, .08); }
button.danger { background: transparent; color: var(--err); border: 1px solid rgba(255, 59, 71, .45); }
button.link { min-height: 0; padding: 0; background: none; color: var(--a); font: inherit; letter-spacing: 0; text-transform: none; text-decoration: underline; text-underline-offset: 3px; }
button:disabled { opacity: .5; cursor: not-allowed; }
.cta { display: inline-block; margin: 8px 0; padding: 12px 22px; border-radius: 6px; background: var(--hot); color: var(--hot-ink); font: 700 .95rem var(--cond); letter-spacing: .16em; text-transform: uppercase; text-decoration: none; box-shadow: 0 0 24px rgba(255, 181, 71, .25); }
.cta:hover { background: var(--hot-hover); }
.btn { display: inline-block; margin: 4px 6px 4px 0; padding: 9px 16px; border: 1px solid var(--edge-hi); border-radius: 6px; color: var(--a); font: 700 .9rem var(--cond); letter-spacing: .14em; text-transform: uppercase; text-decoration: none; }
.btn:hover { background: rgba(79, 216, 255, .08); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 18px; }
.hint { font-size: .9rem; color: var(--m); margin: 6px 0 0; }

/* Notices */
.note { padding: 12px 16px; border-radius: 8px; border: 1px solid; margin: 0 0 16px; }
.note p { margin: 0; color: inherit; }
.note-ok { color: var(--ok); border-color: rgba(61, 255, 162, .35); background: rgba(61, 255, 162, .06); }
.note-err { color: var(--err); border-color: rgba(255, 59, 71, .4); background: rgba(255, 59, 71, .07); }
.note-warn { color: var(--hot-text); border-color: rgba(255, 181, 71, .4); background: rgba(255, 181, 71, .07); }
.note b { color: inherit; }

/* Dashboard */
.round-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 18px; }
.stat { display: grid; gap: 2px; }
.stat .k { font: 500 .66rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--m); }
.stat .v { font: 600 1.6rem/1.1 var(--cond); letter-spacing: .04em; color: var(--t); }
.stat .v.hot { color: var(--hot-text); }
.stat .d { font-size: .88rem; color: var(--soft); }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--edge); border: 1px solid var(--edge); border-radius: 10px; overflow: hidden; margin: 14px 0; }
.stats .stat { background: var(--bg2); padding: 14px 16px; }
.countdown { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.pill { display: inline-block; padding: 2px 8px; border-radius: 4px; font: 600 .72rem var(--mono); letter-spacing: .1em; text-transform: uppercase; border: 1px solid var(--edge-hi); color: var(--a); }
.pill.ok { color: var(--ok); border-color: rgba(61, 255, 162, .4); }
.pill.warn { color: var(--hot-text); border-color: rgba(255, 181, 71, .45); }
.pill.off { color: var(--m); border-color: var(--edge); }

/* Forecast page */
.fc { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(320px, 1fr); gap: 22px; align-items: start; }
.mapbox { position: relative; height: min(68vh, 620px); min-height: 360px; border: 1px solid var(--edge); border-radius: 10px; overflow: hidden; background: #0a0d11; }
.mapbox #map { position: absolute; inset: 0; }
.maphint { position: absolute; left: 10px; bottom: 10px; z-index: 2; margin: 0; padding: 6px 10px; border-radius: 6px; background: rgba(5, 8, 12, .78); color: #d6e0ea; font: .74rem var(--mono); pointer-events: none; }
.mapstate { position: absolute; right: 10px; top: 10px; z-index: 2; margin: 0; padding: 6px 10px; border-radius: 6px; background: rgba(5, 8, 12, .78); color: #d6e0ea; font: .74rem var(--mono); }
.mapstate.bad { color: #ff9aa1; }
.choice { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.choice label { margin: 0; }
.choice input { position: absolute; opacity: 0; pointer-events: none; }
.choice span { display: grid; place-items: center; gap: 2px; min-height: 64px; padding: 10px; border: 1px solid var(--edge); border-radius: 8px; background: var(--glass);
  font: 700 1.25rem var(--cond); letter-spacing: .14em; color: var(--t); text-align: center; cursor: pointer; }
.choice span small { font: 400 .72rem var(--mono); letter-spacing: .04em; text-transform: none; color: var(--m); }
.choice input:checked + span { border-color: var(--a); box-shadow: 0 0 0 1px var(--a), 0 0 18px rgba(79, 216, 255, .18); color: var(--a); }
.choice input:focus-visible + span { outline: 2px solid var(--a); outline-offset: 2px; }
.slots { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 6px; }
.slots label { margin: 0; }
.slots input { position: absolute; opacity: 0; pointer-events: none; }
.slots span { display: grid; gap: 1px; padding: 7px 8px; border: 1px solid var(--edge); border-radius: 6px; background: var(--glass); text-align: center; cursor: pointer;
  font: 600 .95rem var(--mono); letter-spacing: 0; text-transform: none; color: var(--t); }
.slots span small { font: 400 .68rem var(--mono); color: var(--m); }
.slots input:checked + span { border-color: var(--a); color: var(--a); box-shadow: 0 0 0 1px var(--a); }
.slots input:focus-visible + span { outline: 2px solid var(--a); outline-offset: 2px; }
fieldset { border: 0; padding: 0; margin: 18px 0 0; }
legend { font: 500 .72rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--m); padding: 0; margin-bottom: 8px; }
input[type=range] { width: 100%; accent-color: var(--a); }
.revs { font: .8rem var(--mono); color: var(--m); }
.mapbox.off #map { opacity: .45; }
.mapbox.nomap { height: auto; min-height: 0; padding: 14px 16px; }
.mapbox.nomap #map, .mapbox.nomap .maphint, .mapbox.nomap .mapstate { display: none; }
.mapbox .nomap-note { display: none; margin: 0; }
.mapbox.nomap .nomap-note { display: block; }
.pin { cursor: grab; line-height: 0; filter: drop-shadow(0 1px 3px rgba(0, 0, 0, .6)); }
.pin-report { cursor: pointer; }
.maplibregl-popup-content { background: var(--pop); color: var(--t); font: .8rem var(--mono); border: 1px solid var(--edge); border-radius: 6px; padding: 6px 10px; }
.maplibregl-popup-tip { display: none; }

/* History detail */
.score { font: 700 3.2rem/1 var(--cond); color: var(--t); margin: 4px 0 14px; }
.score small { font: 500 1rem var(--mono); color: var(--m); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
.kv dt { font: 500 .7rem/1.9 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--m); }
.kv dd { margin: 0; color: var(--t); }

/* Feeds (GeoFile links) */
.feed { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; padding: 10px 0; border-top: 1px solid var(--edge); }
.feed:first-of-type { border-top: 0; }
.feed b { font: 600 1rem var(--cond); letter-spacing: .08em; text-transform: uppercase; min-width: 9em; }
.feed code { font: .78rem var(--mono); color: var(--soft); word-break: break-all; user-select: all; flex: 1; }
.copy { min-height: 30px; padding: 0 10px; font-size: .78rem; }

/* Footer */
footer { position: relative; z-index: 1; max-width: 980px; margin: 0 auto; padding: 22px 22px 40px; border-top: 1px solid var(--edge); }
footer p { font: .72rem/1.6 var(--mono); color: var(--m); margin: 4px 0; }
footer a { color: var(--m); }
.theme-toggle { min-height: 0; padding: 0; background: none; color: var(--m); font: inherit; letter-spacing: inherit; text-transform: none; text-decoration: underline; text-underline-offset: 3px; }
.theme-toggle:hover { background: none; color: var(--t); }
.theme-toggle b { color: var(--t); font-weight: 500; }

@media (max-width: 1400px) { .site { display: none; } .sm { display: block; } }
@media (max-width: 900px) { .fc { grid-template-columns: 1fr; } .mapbox { height: 72vw; min-height: 240px; max-height: 60vh; } .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .maphint { display: none; } }
@media (max-width: 760px) { .grid, .grid2 { grid-template-columns: 1fr; } }
@media (max-width: 640px) {
  .bar { padding: 14px 16px 10px; } .word { font-size: 15px; letter-spacing: .22em; }
  .brand { flex: 1; } .sm { order: 2; }
  .nav { order: 3; margin-left: 0; width: 100%; } .nav a { flex: 1; text-align: center; padding: 8px 4px; letter-spacing: .08em; font-size: .8rem; }
  main { padding: 20px 16px 40px; } .hide-s { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }
/* iPhone Safari can paint black boxes under a sticky blurred header over a pinned background. */
@media (hover: none), (max-width: 760px) { .bar { -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--bar-solid); } body { background-attachment: scroll; } }

/* ---- Light theme -------------------------------------------------------------------------------
   Same palette as the shop, /apps and /legal: text 16:1, secondary 7:1, cyan/amber/green text 5.5:1+. */
html[data-mode="light"] {
  --bg: #eef2f5; --bg2: #ffffff;
  --glass: rgba(255, 255, 255, .84); --glass-hi: rgba(255, 255, 255, .96);
  --edge: rgba(20, 45, 70, .16); --edge-hi: rgba(0, 102, 138, .45);
  --t: #0e1620; --soft: #2c3844; --m: #45515e; --faint: #56626f;
  --a: #00668a; --glow: rgba(0, 102, 138, .18); --a-ink: #ffffff;
  --hot-text: #8f4c00;
  --live: #b8132a; --ok: #0a6e3f; --err: #a8231b;
  --field: #ffffff; --pop: #ffffff; --shade: rgba(20, 40, 60, .18);
  --bar-a: rgba(244, 247, 250, .95); --bar-b: rgba(244, 247, 250, .82); --bar-solid: rgba(244, 247, 250, .98); --glow-top: #ffffff;
  color-scheme: light;
}
html[data-mode="light"] .word span { text-shadow: none; }
html[data-mode="light"] .mark { fill: #00668a; filter: none; }
html[data-mode="light"] .cta { box-shadow: none; }
html[data-mode="light"] .mapbox { background: #e8ecf0; }

/* Screen-reader-only text */
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Forecast form: YES-only fields hide for NO, the confidence slider shows only when chosen (no script needed). */
.fcform:has(input[name="occurrence"][value="no"]:checked) .yes-only { display: none; }
.fcform:not(:has(#conf_on:checked)) .conf { display: none; }
.fcform select { max-width: none; }

.note .row button { white-space: nowrap; }
.grid2 + .mapbox, .card + .mapbox { margin-top: 14px; }

/* Avatars */
img.av { border-radius: 50%; vertical-align: middle; flex: none; background: var(--bg2); }
.who { display: inline-flex; align-items: center; gap: 10px; }
.who small { display: block; font: .74rem var(--mono); color: var(--m); }
.avnow { display: flex; align-items: center; gap: 14px; margin-bottom: 6px; }
.avgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(78px, 1fr)); gap: 8px; }
.avpick { margin: 0; text-transform: none; letter-spacing: 0; }
.avpick input { position: absolute; opacity: 0; pointer-events: none; }
.avpick span { display: grid; justify-items: center; gap: 4px; padding: 8px 4px; border: 1px solid var(--edge); border-radius: 8px; background: var(--glass); cursor: pointer; }
.avpick span img { border-radius: 50%; }
.avpick small { font: .7rem var(--mono); color: var(--m); text-align: center; }
.avpick input:checked + span { border-color: var(--a); box-shadow: 0 0 0 1px var(--a); }
.avpick input:focus-visible + span { outline: 2px solid var(--a); outline-offset: 2px; }
.pagehead { display: flex; align-items: center; gap: 16px; }
.pagehead h1 { margin: 0; }
input[type=file] { color: var(--soft); font: .9rem var(--sans); max-width: 100%; }
input[type=file]::file-selector-button { margin-right: 12px; padding: 8px 14px; border-radius: 6px; border: 1px solid var(--edge-hi); background: transparent; color: var(--a);
  font: 700 .82rem var(--cond); letter-spacing: .14em; text-transform: uppercase; cursor: pointer; }