/* Pearl Bond — engraved certificate theme: deep ink, oxblood, gold foil. */
:root {
  --ink: #17110c;
  --ink2: #241a12;
  --paper: #f5edd8;
  --paper2: #efe3c8;
  --oxblood: #5c1a1a;
  --oxblood2: #7a2424;
  --gold: #c9a227;
  --gold2: #e6c766;
  --gold-dim: #8a6f1c;
  --text: #f0e7cf;
  --muted: #b8a67e;
  --line: #3a2c1c;
  --err: #e0705f;
  --ok: #8fc98f;
}
* { box-sizing: border-box; }
html { background: var(--ink); }
body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text);
  background:
    radial-gradient(1200px 500px at 50% -120px, #2b1d12 0%, var(--ink) 60%),
    var(--ink);
  min-height: 100vh;
}
h1, h2, h3 { font-weight: normal; letter-spacing: 0.02em; }
h2 {
  color: var(--gold2);
  border-bottom: 1px solid var(--gold-dim);
  padding-bottom: 0.4em;
  font-variant: small-caps;
  letter-spacing: 0.08em;
}
h3 { color: var(--gold); font-variant: small-caps; letter-spacing: 0.06em; }

/* Top bar */
.topbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 3px double var(--gold-dim);
  background: linear-gradient(180deg, #20140c, #17110c);
}
.brand { display: flex; align-items: center; gap: 0.8rem; }
.seal { width: 44px; height: 44px; color: var(--gold); }
.brand h1 { margin: 0; font-size: 1.7rem; color: var(--gold2); font-variant: small-caps; letter-spacing: 0.1em; }
.tagline { margin: 0.1rem 0 0; color: var(--muted); font-style: italic; font-size: 0.9rem; }
.steps { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-left: auto; }
.steps button {
  font-family: inherit; cursor: pointer;
  background: transparent; color: var(--muted);
  border: 1px solid var(--line); border-radius: 2px;
  padding: 0.45rem 0.7rem; font-size: 0.85rem;
}
.steps button:hover { border-color: var(--gold-dim); color: var(--gold2); }
.steps button.active {
  background: var(--oxblood); color: var(--gold2);
  border-color: var(--gold-dim);
}

/* Panels — certificate cards */
main { max-width: 1080px; margin: 0 auto; padding: 1.5rem 1rem 3rem; }
.panel {
  display: none;
  background: linear-gradient(180deg, var(--ink2), #1c130c);
  border: 1px solid var(--gold-dim);
  outline: 3px double rgba(201, 162, 39, 0.25);
  outline-offset: 5px;
  border-radius: 2px;
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
}
.panel.active { display: block; }
.panel.limits { display: block; border-color: var(--oxblood2); }
.panel.limits h2 { color: var(--muted); border-color: var(--line); }
.panel.limits ul { margin: 0.5rem 0; padding-left: 1.2rem; color: var(--muted); }
.panel.limits li { margin: 0.4rem 0; font-size: 0.92rem; }
.lede { color: #d9c9a3; line-height: 1.55; }
.lede.small, .small { font-size: 0.85rem; }
.hint { color: var(--muted); font-size: 0.8em; font-style: italic; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 0.85rem; }
.err { color: var(--err); font-size: 0.9rem; }
.hidden { display: none !important; }
.empty { color: var(--muted); font-style: italic; padding: 1rem 0; }
.callout {
  border-left: 3px solid var(--gold);
  background: rgba(201, 162, 39, 0.07);
  padding: 0.7rem 1rem; margin: 0.8rem 0;
  line-height: 1.6; font-size: 0.93rem;
}

/* Forms */
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; margin: 1rem 0; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.col h3 { margin-top: 0; }
.field { margin-bottom: 0.9rem; }
.field label { display: block; margin-bottom: 0.35rem; color: var(--gold); font-size: 0.9rem; font-variant: small-caps; letter-spacing: 0.05em; }
input[type="text"], input[type="number"], input[type="password"], select, textarea {
  width: 100%;
  background: #100c07; color: var(--text);
  border: 1px solid var(--line); border-radius: 2px;
  padding: 0.55rem 0.65rem;
  font-family: inherit; font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--gold); }
.field label.check { display: flex; flex-direction: row; align-items: flex-start; gap: .5em; border: 1px solid var(--line); border-radius: 2px; padding: .6em .8em; font-variant: normal; letter-spacing: normal; color: var(--text); }
.field label.check input { width: auto; margin-top: .2rem; flex: none; }
textarea { resize: vertical; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.7rem; margin: 0.9rem 0; }

/* Buttons */
.btn {
  font-family: inherit; cursor: pointer;
  border: 1px solid var(--gold-dim); border-radius: 2px;
  padding: 0.55rem 1.1rem; font-size: 0.92rem;
  background: transparent; color: var(--gold2);
  font-variant: small-caps; letter-spacing: 0.06em;
}
.btn:hover { border-color: var(--gold2); }
.btn.primary {
  background: linear-gradient(180deg, var(--oxblood2), var(--oxblood));
  color: var(--gold2); border-color: var(--gold);
}
.btn.primary:hover { filter: brightness(1.15); }
.btn.ghost { color: var(--muted); border-color: var(--line); }
.btn.ghost:hover { color: var(--gold2); border-color: var(--gold-dim); }
.copy-btn {
  font-family: inherit; font-size: 0.8rem; cursor: pointer;
  background: transparent; color: var(--gold); border: 1px solid var(--line);
  border-radius: 2px; padding: 0.38rem 0.6rem; margin-left: 0.5rem;
}
.copy-btn:hover { border-color: var(--gold); }

/* Tables */
.tablewrap { overflow-x: auto; margin: 0.8rem 0; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--line); }
th { color: var(--gold); font-variant: small-caps; letter-spacing: 0.05em; font-weight: normal; }
td.mono, th.mono { font-size: 0.78rem; }
tr:hover td { background: rgba(201, 162, 39, 0.04); }
.status { font-variant: small-caps; letter-spacing: 0.05em; padding: 0.15rem 0.5rem; border-radius: 2px; border: 1px solid var(--line); }
.status.claimable { color: var(--ok); border-color: var(--ok); }
.status.locked { color: var(--gold2); border-color: var(--gold-dim); }
.status.unfunded { color: var(--muted); }
.status.spent { color: var(--err); border-color: var(--err); }
.status.funded { color: #9fc3e0; border-color: #4a6a8a; }

/* Footer */
footer {
  border-top: 3px double var(--gold-dim);
  padding: 1.2rem 1.5rem 2rem;
  color: var(--muted); font-size: 0.88rem; text-align: center;
}
footer a { color: var(--gold2); }
footer code { color: var(--text); font-size: 0.78rem; word-break: break-all; }

@media (max-width: 640px) {
  .panel { padding: 1rem; }
  .topbar { padding: 0.8rem; }
}

/* Keyboard focus: a visible ring in this app's accent on every interactive element (fleet focus-visible pass). */
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* Skip link: the first Tab stop on the page — parked off-screen until keyboard focus reveals it (fleet skip-link pass). */
.skip-link { position: absolute; left: 12px; top: -64px; z-index: 1000; padding: 10px 16px; border: 2px solid var(--gold); border-radius: 8px; background: #0b0e14; color: var(--gold); font-weight: 700; text-decoration: none; transition: top .15s ease; }
.skip-link:focus-visible { top: 12px; }
main:focus { outline: none; }

/* Reduced motion: when the OS asks for reduced motion, animations and transitions finish near-instantly and scrolling is not smoothed (fleet reduced-motion pass). Near-zero durations — not animation: none — so fade-ins still land on their end state and no content can be stranded invisible. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}