@font-face {
  font-family: "Atkinson Next";
  src: url("atkinson-next.woff2") format("woff2");
  font-weight: 200 800;
  font-display: swap;
}

:root {
  --paper: #eef0ea;       /* security-paper grey-green */
  --sheet: #f7f8f4;       /* inputs and raised surfaces */
  --ink: #18212b;
  --muted: #56606a;
  --rule: #c4cabf;
  --stamp: #2a36c9;       /* ultramarine stamp ink */
  --alarm: #a3352b;       /* oxblood for refusals */
  --graphite: #7a838b;
  --font: "Atkinson Next", "Atkinson Hyperlegible Next", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --gutter: clamp(1.25rem, 6vw, 6rem);
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.125rem/1.55 var(--font);
  font-feature-settings: "kern" 1;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration-color: var(--stamp); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:hover { color: var(--stamp); }
:focus-visible { outline: 3px solid var(--stamp); outline-offset: 3px; border-radius: 4px; }
code { font-family: var(--mono); font-size: .88em; }

/* ---- frame ---------------------------------------------------------- */

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem var(--gutter);
}
.mark { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; font-weight: 760; font-size: 1.2rem; letter-spacing: -.01em; }
.mark svg { width: 1.75rem; height: auto; fill: var(--stamp); }
.top nav a { font-size: 1rem; }

main { padding: 0 var(--gutter) 4rem; max-width: calc(46rem + 2 * var(--gutter)); }

.foot {
  margin: 0 var(--gutter);
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: .95rem;
  max-width: 46rem;
}
.foot p { margin: 0 0 .5rem; }
.foot a { margin-right: 1.25rem; }

/* ---- type ----------------------------------------------------------- */

h1 {
  font-size: clamp(2.25rem, 5.4vw, 3.75rem);
  line-height: 1.04;
  font-weight: 780;
  letter-spacing: -.025em;
  margin: 2.5rem 0 1rem;
  max-width: 14em;
}
h2 { font-size: 1.5rem; line-height: 1.2; font-weight: 740; letter-spacing: -.01em; margin: 0 0 1rem; }
h3 { font-size: 1.125rem; font-weight: 720; margin: 0 0 .5rem; }
.lede { font-size: 1.3rem; line-height: 1.45; max-width: 34em; margin: 0 0 2rem; }
.muted { color: var(--muted); font-size: 1rem; }

/* ---- create form ---------------------------------------------------- */

.create { display: grid; gap: 1.75rem; margin: 0 0 4.5rem; max-width: 38rem; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
legend, .field-label { display: block; font-weight: 720; margin-bottom: .6rem; padding: 0; }
.opt { font-weight: 400; color: var(--muted); }

.modes { display: grid; gap: .75rem; }
.mode {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .9rem;
  align-items: start;
  padding: 1rem 1.15rem;
  border: 1.5px solid var(--rule);
  border-radius: 14px;
  cursor: pointer;
  background: transparent;
}
.mode:has(input:checked) { border-color: var(--stamp); background: var(--sheet); }
.mode-body { display: grid; gap: .2rem; }
.mode-body span { color: var(--muted); font-size: 1rem; line-height: 1.45; }

input[type="radio"] {
  appearance: none;
  width: 1.3rem;
  height: 1.3rem;
  margin: .15rem 0 0;
  border: 2px solid var(--ink);
  border-radius: 50%;
  display: grid;
  place-content: center;
  background: var(--sheet);
}
input[type="radio"]::before {
  content: "";
  width: .62rem;
  height: .62rem;
  border-radius: 50%;
  background: var(--stamp);
  transform: scale(0);
}
input[type="radio"]:checked { border-color: var(--stamp); }
input[type="radio"]:checked::before { transform: scale(1); }

.pills { display: flex; flex-wrap: wrap; gap: .5rem; }
.pill { position: relative; cursor: pointer; }
.pill input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.pill span {
  display: inline-block;
  padding: .5rem 1.05rem;
  border: 1.5px solid var(--rule);
  border-radius: 999px;
  font-size: 1rem;
}
.pill input:checked + span { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.pill input:focus-visible + span { outline: 3px solid var(--stamp); outline-offset: 3px; }

.field { display: grid; }
input[type="text"], textarea {
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  width: 100%;
  padding: .8rem 1rem;
  border: 1.5px solid var(--rule);
  border-radius: 10px;
  background: var(--sheet);
}
textarea { font-family: var(--mono); font-size: .85rem; line-height: 1.5; resize: vertical; word-break: break-all; }
.hint { color: var(--muted); font-size: .95rem; margin-top: .4rem; }

.btn {
  justify-self: start;
  font: inherit;
  font-weight: 720;
  color: var(--paper);
  background: var(--ink);
  border: 0;
  border-radius: 999px;
  padding: .9rem 1.7rem;
  cursor: pointer;
}
.btn:hover { background: var(--stamp); }
.btn--small { padding: .55rem 1.1rem; font-size: 1rem; }

.alert { color: var(--alarm); font-weight: 600; margin: 0; }

/* ---- explanation sections ------------------------------------------ */

.how, .limits, .api { margin: 0 0 4rem; max-width: 42rem; }

.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; gap: 1.1rem; }
.steps li { counter-increment: step; position: relative; padding-left: 2.4rem; }
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: .05rem;
  font-weight: 780;
  font-size: 1.5rem;
  line-height: 1.1;
  color: var(--stamp);
}

.cols { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 720px) { .cols { grid-template-columns: 1fr 1fr; } }
.cols ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .8rem; font-size: 1.05rem; }
.cols li { position: relative; padding-left: 1.4rem; }
.cols li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .5em;
  width: .6rem;
  height: .6rem;
  border-radius: 50%;
  background: var(--stamp);
}
.cols > div + div li::before { background: transparent; border: 2px solid var(--graphite); }

pre {
  background: var(--ink);
  color: #e9ece6;
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  font-size: .85rem;
  line-height: 1.6;
  margin: 1rem 0 0;
}

/* ---- seal ----------------------------------------------------------- */

.seal { width: 100%; height: auto; display: block; color: var(--graphite); }
.seal .line { fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; }
.seal .fill { fill: currentColor; }
.seal .ring { font: 720 15.5px var(--font); fill: currentColor; }
.seal--passed { color: var(--stamp); transform: rotate(-8deg); mix-blend-mode: multiply; }
.seal--failed { color: var(--alarm); transform: rotate(-8deg); mix-blend-mode: multiply; }

.is-fresh .seal--passed, .is-fresh .seal--failed { animation: stamp .55s cubic-bezier(.2, .9, .3, 1.2) both; }
@keyframes stamp {
  0% { transform: scale(1.45) rotate(-18deg); opacity: 0; }
  70% { transform: scale(.97) rotate(-7deg); opacity: 1; }
  100% { transform: scale(1) rotate(-8deg); opacity: 1; }
}

/* ---- result page (owner) ------------------------------------------- */

.result { display: grid; gap: 1.5rem; padding-top: 1.5rem; }
.result .seal-wrap { width: min(15rem, 62vw); }
.result h1 { margin-top: .5rem; }
@media (min-width: 860px) {
  .result { grid-template-columns: 15rem 1fr; gap: 3rem; align-items: start; padding-top: 3rem; }
  .result .seal-wrap { width: 100%; position: sticky; top: 2rem; }
  .result h1 { margin-top: 1.25rem; }
}
.result-body { max-width: 40rem; }
.note { font-size: 1.2rem; color: var(--muted); margin: -.25rem 0 1.5rem; }
.summary { font-size: 1.2rem; line-height: 1.5; margin: 0 0 1.75rem; }
.share { display: grid; gap: .75rem; margin: 0 0 1.5rem; }
.copyrow { display: flex; gap: .5rem; align-items: center; }
.copyrow input { font-family: var(--mono); font-size: .95rem; }
.keep { margin: 0; padding: .9rem 1.1rem; border-left: 4px solid var(--stamp); background: var(--sheet); border-radius: 0 10px 10px 0; font-size: 1rem; }
.statusline { color: var(--muted); font-size: 1rem; }

.facts { margin: 0 0 2rem; border-top: 1px solid var(--rule); }
.facts > div { display: grid; grid-template-columns: 1fr; gap: .1rem; padding: .7rem 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 560px) { .facts > div { grid-template-columns: 12rem 1fr; gap: 1rem; } }
.facts dt { color: var(--muted); font-size: 1rem; }
.facts dd { margin: 0; font-size: 1rem; }

.receipt { display: grid; gap: .25rem; }
.receipt .row { display: flex; align-items: center; gap: 1.25rem; margin: .75rem 0 0; font-size: 1rem; }

details.raw { margin-top: 2.5rem; color: var(--muted); font-size: 1rem; }
details.raw summary { cursor: pointer; }
code.block { display: block; margin-top: .6rem; word-break: break-all; }

/* ---- check page (person) ------------------------------------------- */

.person { max-width: 38rem; padding-top: 1rem; }
.person .seal-wrap { width: min(13rem, 56vw); margin: 2rem 0 0; }
.callout { padding: .9rem 1.1rem; border-left: 4px solid var(--stamp); background: var(--sheet); border-radius: 0 10px 10px 0; margin: 0 0 2rem; font-size: 1rem; }

.touch { display: grid; justify-items: start; gap: 1.25rem; margin: 1rem 0 2.5rem; }
.touch-btn {
  width: 11.5rem;
  height: 11.5rem;
  border-radius: 50%;
  border: 0;
  background: var(--stamp);
  color: #fff;
  font: inherit;
  font-weight: 720;
  font-size: 1.1rem;
  line-height: 1.25;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: .9rem;
  padding: 1.5rem;
  cursor: pointer;
  box-shadow: 0 0 0 .5rem var(--paper), 0 0 0 calc(.5rem + 2px) var(--stamp);
}
.touch-btn svg { width: 2.6rem; fill: currentColor; }
.touch-btn:hover { background: #1f2aa6; }
.touch-btn:disabled { background: var(--graphite); box-shadow: 0 0 0 .5rem var(--paper), 0 0 0 calc(.5rem + 2px) var(--graphite); cursor: default; }
.touch-btn:focus-visible { outline-offset: 1rem; border-radius: 50%; }
.status { margin: 0; min-height: 1.5em; max-width: 30em; font-size: 1.05rem; }
.status[data-tone="bad"] { color: var(--alarm); font-weight: 600; }
.status[data-tone="busy"] { color: var(--muted); }
.fine { color: var(--muted); font-size: .98rem; border-top: 1px solid var(--rule); padding-top: 1.25rem; }
.fine p { margin: 0 0 .75rem; }

/* ---- verify page ---------------------------------------------------- */

.verdict { max-width: 38rem; padding: 1.25rem 1.4rem; border-radius: 14px; margin: 0 0 2.5rem; border: 2px solid; }
.verdict h2 { margin-bottom: .5rem; }
.verdict p { margin: 0 0 1rem; }
.verdict--ok { border-color: var(--stamp); background: var(--sheet); }
.verdict--ok h2 { color: var(--stamp); }
.verdict--bad { border-color: var(--alarm); background: var(--sheet); }
.verdict--bad h2 { color: var(--alarm); }
.verdict .facts { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---- server check --------------------------------------------------- */
.setup { max-width: 44rem; }
.setup dt { color: var(--ink); font-weight: 650; }
.setup .ok, .setup .no { display: inline-block; min-width: 2.6rem; font-weight: 720; }
.setup .ok { color: var(--stamp); }
.setup .no { color: var(--alarm); }