/* KolTheia landing — the evidence file.
   Layout: a case file read top to bottom. The opening is a working check (the product itself);
   then the exhibit tag (what is kept), the verdict ladder (every answer), and how to start.
   Paper and ink by day, a dark file room by night. Marker yellow marks what to notice, signal red is the seal (decisions/0022). */
:root {
  --paper: #EFEBE2; --sheet: #F8F6F0; --ink: #17140F; --ink-2: #57524A; --ink-3: #6B665C;
  --rule: #D6D0C3; --manila: #FFD21F; --manila-ink: #0B0B0A;
  --seal: #E0221B; --marker: #FFD21F; --marker-on: #0B0B0A; --ok: #1F7A3D; --warn: #9A6A00; --bad: #B3261E;
  --display: "Newsreader", Georgia, "Times New Roman", serif;
  --poster: "Big Shoulders Display", "Arial Narrow", Impact, sans-serif;
  --text: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  color-scheme: light;
}
/* Dark: the device's setting, or the switch (decisions/0023; the choice is shared with the app). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0B0B0A; --sheet: #151412; --ink: #EEEAE1; --ink-2: #ABA597; --ink-3: #88827A;
    --rule: #2D2B27; --manila: #FFD21F; --manila-ink: #0B0B0A;
    --seal: #FF4A3D; --ok: #5CC98A; --warn: #E0B04A; --bad: #F0706A;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
    --paper: #0B0B0A; --sheet: #151412; --ink: #EEEAE1; --ink-2: #ABA597; --ink-3: #88827A;
    --rule: #2D2B27; --manila: #FFD21F; --manila-ink: #0B0B0A;
    --seal: #FF4A3D; --ok: #5CC98A; --warn: #E0B04A; --bad: #F0706A;
    color-scheme: dark;
}
.theme-switch { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--rule); border-radius: 2px; background: none; color: var(--ink-2); cursor: pointer; }
.theme-switch:hover { color: var(--ink); border-color: var(--ink); }
.theme-switch svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.theme-switch .to-light { display: none; }
:root[data-theme="dark"] .theme-switch .to-dark { display: none; }
:root[data-theme="dark"] .theme-switch .to-light { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .theme-switch .to-dark { display: none; }
  :root:not([data-theme]) .theme-switch .to-light { display: block; }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--text); }
a { color: inherit; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mono { font-family: var(--mono); }

.bar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px max(16px, calc((100% - 1120px) / 2)); background: var(--paper); border-bottom: 1px solid var(--rule); }
.mark { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 800 1.6rem/1 var(--poster); text-transform: uppercase; letter-spacing: .01em; }
.mark img { width: 28px; height: 28px; display: block; }
.bar nav { display: flex; align-items: center; gap: clamp(12px, 3vw, 26px); font-size: 14.5px; }
.bar nav a { white-space: nowrap; }      /* "Log in" broke onto two lines on a phone once Register joined the bar (2026-10-27) */
.bar nav a:not(.btn) { text-decoration: none; color: var(--ink-2); }
.bar nav a:not(.btn):hover { color: var(--ink); }
.btn { display: inline-flex; align-items: center; padding: 9px 16px; background: var(--ink); color: var(--paper); text-decoration: none; font-weight: 650; border-radius: 2px; }
.btn:hover { background: var(--marker); color: var(--marker-on); }
.btn:focus-visible, a:focus-visible, .drop:focus-within { outline: 2px solid var(--ink); outline-offset: 3px; }

main { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
section { padding-block: clamp(44px, 8vw, 96px); border-bottom: 1px solid var(--rule); }
h1, h2 { font-family: var(--display); font-weight: 500; letter-spacing: -.015em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(44px, 8vw, 104px); line-height: .96; }
h2 { font-size: clamp(32px, 4.6vw, 52px); line-height: 1.02; }

/* opening: the question, and the check that answers it */
.open { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: end; }
.file-no { display: inline-block; font: 500 12.5px var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--marker-on); background: var(--marker); padding: 3px 8px; margin: 0 0 18px; }
.lede { font-size: clamp(17px, 1.6vw, 19.5px); color: var(--ink-2); max-width: 52ch; margin: 22px 0 0; }
.check { display: grid; gap: 14px; min-width: 0; }
.drop { display: grid; gap: 8px; align-content: end; min-height: 260px; padding: 26px; cursor: pointer;
  background: var(--sheet); border: 1.5px dashed var(--ink-3); transition: border-color .15s, background .15s; }
.drop:hover, .drop.over { border-color: var(--ink); border-style: solid; background: color-mix(in srgb, var(--marker) 14%, var(--sheet)); }
.drop-title { font: 800 clamp(30px, 3.4vw, 40px)/1 var(--poster); text-transform: uppercase; letter-spacing: .01em; overflow-wrap: anywhere; }
.drop-sub { color: var(--ink-2); font-size: 14.5px; }
.drop.busy .drop-title::after { content: " …"; }
.verdict { background: var(--sheet); border-top: 3px solid var(--tone, var(--ink-3)); padding: 18px 20px; display: grid; gap: 6px; min-width: 0; }
.verdict-k { margin: 0; font: 500 12px var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--tone, var(--ink-3)); }
.verdict-t { margin: 0; font: 500 28px/1.1 var(--display); }
.verdict-c { margin: 0; color: var(--ink-2); font-size: 15px; }
.verdict-h { margin: 4px 0 0; font-size: 12px; color: var(--ink-3); overflow-wrap: anywhere; }
.verdict-h span { font-family: var(--mono); }
.verdict-h code { font-family: var(--mono); color: var(--ink-2); }
.verdict-more { font-size: 14px; font-weight: 600; text-underline-offset: 3px; }

/* the exhibit tag: what is actually kept */
.kept { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 6vw, 80px); align-items: center; }
.kept-text p { color: var(--ink-2); font-size: 17px; max-width: 52ch; margin: 18px 0 0; }
.tag { position: relative; margin: 0; background: var(--manila); color: var(--manila-ink); padding: 34px 26px 20px;
  clip-path: polygon(0 18px, 18px 0, 100% 0, 100% 100%, 0 100%); transform: rotate(-1.2deg); }
.tag-hole { position: absolute; left: 28px; top: 20px; width: 12px; height: 12px; border-radius: 50%; background: var(--paper); box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--manila-ink) 35%, transparent); }
.tag-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 0 0 12px 32px; border-bottom: 1px solid color-mix(in srgb, var(--manila-ink) 25%, transparent);
  font: 500 12px var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.tag-stamp { color: var(--seal); background: var(--paper); border: 2px solid var(--seal); padding: 3px 10px; font: 800 18px/1 var(--poster); letter-spacing: .06em; transform: rotate(-6deg); }
.tag dl { margin: 0; }
.tag dl > div { display: grid; grid-template-columns: 11em minmax(0, 1fr); gap: 12px; padding: 10px 0; border-bottom: 1px solid color-mix(in srgb, var(--manila-ink) 16%, transparent); }
.tag dt { font: 500 11.5px var(--mono); letter-spacing: .03em; text-transform: uppercase; color: color-mix(in srgb, var(--manila-ink) 80%, var(--manila)); padding-top: 2px; }
.tag dd { margin: 0; font-size: 14.5px; overflow-wrap: anywhere; }
.tag-foot { margin: 12px 0 0; font: 400 12px var(--mono); color: color-mix(in srgb, var(--manila-ink) 78%, var(--manila)); }

/* the ladder: every verdict, strongest to none */
.ladder-lede { color: var(--ink-2); font-size: 17px; max-width: 58ch; margin: 16px 0 28px; }
.rungs { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.rungs li { display: grid; grid-template-columns: minmax(0, 17em) minmax(0, 1fr); gap: 6px 28px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.rungs b { font: 800 clamp(22px, 2.4vw, 28px)/1.05 var(--poster); text-transform: uppercase; letter-spacing: .01em; color: var(--c); }
.rungs span { color: var(--ink-2); max-width: 62ch; }
.rungs .ok { --c: var(--ok); } .rungs .ok-ish { --c: var(--warn); } .rungs .info { --c: var(--ink-2); }
.rungs .none { --c: var(--ink-3); } .rungs .bad { --c: var(--bad); }

/* how to start: a real three-step process, so it is numbered */
.steps { margin: 26px 0 0; padding: 0; list-style: none; counter-reset: s; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border-top: 2px solid var(--ink); }
.steps li { counter-increment: s; padding: 18px 22px 18px 0; color: var(--ink-2); }
.steps li + li { border-left: 1px solid var(--rule); padding-left: 22px; }
.steps li::before { content: counter(s); display: block; font: 800 54px/.9 var(--poster); color: var(--ink); margin-bottom: 10px; }
.steps b { color: var(--ink); }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; margin: 30px 0 0; }
.btn-big { padding: 14px 22px; font-size: 16px; }
.link { font-weight: 600; text-underline-offset: 3px; }
.limits { color: var(--ink-3); font-size: 14px; max-width: 62ch; margin: 26px 0 0; }
section.start { border-bottom: 0; }
.foot { text-align: center; padding: 28px 16px 40px; font: 400 12.5px var(--mono); color: var(--ink-2); border-top: 1px solid var(--rule); } /* --ink-3 was under 4.5:1 at this size */
.foot a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 820px) {
  .open, .kept { grid-template-columns: 1fr; align-items: start; }
  .drop { min-height: 190px; }
  .rungs li { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .steps li + li { border-left: 0; border-top: 1px solid var(--rule); padding-left: 0; }
  .tag { transform: none; }
  .tag dl > div { grid-template-columns: 1fr; gap: 2px; }
  .bar nav a[href="/docs"] { display: none; }
}
@media (prefers-reduced-motion: reduce) { .drop, .btn { transition: none; } }