/* The look of the 2023 Hinance front end: near-black page, dark cards, one accent colour
   per exchange. System fonts only: the page loads nothing but jsDelivr and its own files. */

:root {
  --bg: #121212;
  --card: #1e1e20;
  --card-2: #26262a;
  --line: #3a3a40;
  --text: #f4f4f5;
  --muted: #b4b4bb;
  --focus: #ffffff;

  --wallet: #6cb6ff;
  --ex1: #b69cff;
  --ex2: #3fd9a0;
  --ex3: #f0b90b;
  --blockid: #46d58c;
  --chain: #ff9d4d;
  --bad: #ff7a7a;
  --good: #3fd98a;

  --radius: 12px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 var(--font);
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3, p, ul, ol, dl, dd { margin: 0; }

a { color: var(--ex3); }
a:hover { text-decoration: none; }

code, .mono { font-family: var(--mono); font-size: 0.875em; }
code { background: var(--card-2); padding: 0.1em 0.35em; border-radius: 4px; overflow-wrap: anywhere; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }

.skip {
  position: absolute; left: -999px; top: 8px; background: var(--ex3); color: #000;
  padding: 8px 12px; border-radius: 6px; z-index: 10;
}
.skip:focus { left: 8px; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

/* ---- header ---- */
.top { border-bottom: 1px solid var(--line); }
.top-inner { display: flex; align-items: center; gap: 12px; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap; }
.mark { border-radius: 8px; flex: none; }
h1 { font-size: 1.25rem; line-height: 1.2; }
h1 .light { font-weight: 400; color: var(--muted); }
.tagline { color: var(--muted); font-size: 0.9rem; }
.repo { margin-left: auto; font-size: 0.9rem; }

/* ---- intro and status ---- */
.intro { padding: 24px 0 8px; max-width: 70ch; }
.intro h2 { font-size: 1.15rem; margin-bottom: 8px; }
.intro p + p { margin-top: 8px; }
.intro p { color: var(--muted); }
.intro strong, .intro em { color: var(--text); }

.status { margin: 16px 0; padding: 14px 16px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.status[hidden] { display: none; }
.bar { height: 6px; background: var(--card-2); border-radius: 3px; margin-top: 10px; overflow: hidden; }
.bar > span { display: block; height: 100%; width: 0; background: var(--ex3); transition: width 0.2s; }

.notice { margin: 16px 0; padding: 16px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); }
.notice.error { border-color: var(--bad); }
.notice h2 { font-size: 1.05rem; margin-bottom: 6px; }
.notice p + p { margin-top: 8px; }

/* ---- controls ---- */
.controls { margin: 16px 0; padding: 16px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); position: sticky; top: 0; z-index: 5; }
.progress { color: var(--muted); font-size: 0.9rem; margin-bottom: 8px; }
.buttons { display: flex; flex-wrap: wrap; gap: 8px; }
button {
  font: inherit; font-weight: 600; color: var(--text); background: var(--card-2);
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; min-height: 44px; cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--text); }
button:disabled { opacity: 0.55; cursor: not-allowed; }
button.primary:disabled { background: var(--card-2); color: var(--muted); border-color: var(--line); opacity: 1; }
button.primary { background: var(--ex3); color: #000; border-color: var(--ex3); flex: 1 1 260px; text-align: left; }
button.primary:hover:not(:disabled) { background: #ffc61f; border-color: #ffc61f; }
.identity-line { margin-top: 10px; color: var(--muted); font-size: 0.85rem; }
.identity-line strong { color: var(--text); }

/* ---- result of a run ---- */
.result { margin: 0 0 16px; padding: 16px; border-radius: var(--radius); background: var(--card); border: 2px solid var(--line); }
.result.rejected { border-color: var(--bad); }
.result.done { border-color: var(--good); }
.result h2 { font-size: 1.1rem; margin-bottom: 6px; }
.result .why { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); }
.result .why:first-of-type { margin-top: 8px; }
.result .layer { color: var(--muted); font-size: 0.85rem; }
.result .label { display: inline-block; margin: 2px 0 6px; padding: 4px 10px; background: #3b1d1d; color: #ffb4b4; border-radius: 6px; font: 600 1rem var(--mono); overflow-wrap: anywhere; }
.result ul { margin: 10px 0 0 1.2em; color: var(--muted); }

/* ---- panels ---- */
.panels { display: grid; grid-template-columns: 1fr; gap: 12px; margin-bottom: 24px; }
.panel {
  background: var(--card); border: 1px solid var(--line); border-top: 4px solid var(--accent, var(--line));
  border-radius: var(--radius); padding: 14px 16px 16px; transition: box-shadow 0.2s, border-color 0.2s;
  min-width: 0;
}
.panel.wallet { --accent: var(--wallet); }
.panel.ex1 { --accent: var(--ex1); }
.panel.ex2 { --accent: var(--ex2); }
.panel.ex3 { --accent: var(--ex3); }
.panel.blockid { --accent: var(--blockid); }
.panel.active { box-shadow: 0 0 0 2px var(--accent); border-color: var(--accent); }
.panel h3 { font-size: 1.05rem; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.panel .sub { color: var(--muted); font-size: 0.85rem; margin-bottom: 10px; }
.chip { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: #000; background: var(--accent); padding: 2px 7px; border-radius: 99px; }
.hinance { display: block; }

.facts { display: grid; gap: 8px; }
.facts dt { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.facts dd { overflow-wrap: anywhere; }
.facts .empty { color: var(--muted); font-style: italic; }
.note { color: var(--muted); font-size: 0.85rem; margin-top: 10px; }
.tick { color: var(--good); font-weight: 600; }
.cross { color: var(--bad); font-weight: 600; }

.art { display: block; max-width: 100%; height: auto; margin: 8px 0; }
.success { text-align: center; }
.success img { margin: 0 auto; width: 120px; height: auto; }
.success p { font-weight: 600; margin-top: 4px; }
.pill-img { margin-top: 12px; }

/* ---- log ---- */
.log-section h2, .seen h2, .break h2, .foot h2 { font-size: 1.15rem; margin-bottom: 10px; }
.log {
  list-style: none; padding: 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  max-height: 26rem; overflow-y: auto; overscroll-behavior: contain;
}
.log li { padding: 10px 14px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 7.5rem 1fr; gap: 4px 12px; }
.log li:last-child { border-bottom: 0; }
.log .tag { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--c, var(--muted)); padding-top: 2px; }
.log .text { overflow-wrap: anywhere; }
.log .tx { grid-column: 2; color: var(--muted); font-size: 0.8rem; }
.log li.error { background: #2a1717; }
.log li.error .text { color: #ffc4c4; }
.log li.ok .text::before { content: "✓ "; color: var(--good); font-weight: 700; }
.log li[data-actor="wallet"] { --c: var(--wallet); }
.log li[data-actor="ex1"] { --c: var(--ex1); }
.log li[data-actor="ex2"] { --c: var(--ex2); }
.log li[data-actor="ex3"] { --c: var(--ex3); }
.log li[data-actor="blockid"] { --c: var(--blockid); }
.log li[data-actor="chain"] { --c: var(--chain); }

.seen, .break { margin-top: 24px; }
.seen > div, .break > p { color: var(--muted); }
.seen-box { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.seen-box ul { margin: 6px 0 0 1.2em; }
.seen-box li { margin-top: 4px; overflow-wrap: anywhere; }
.seen-box p + p { margin-top: 10px; }
.seen-box strong { color: var(--text); }

.scenarios { display: grid; gap: 10px; margin-top: 12px; grid-template-columns: 1fr; }
.scenario { text-align: left; display: block; width: 100%; }
.scenario .t { display: block; }
.scenario .s { display: block; font-weight: 400; color: var(--muted); font-size: 0.85rem; margin-top: 2px; }

/* ---- footer ---- */
.foot { margin-top: 32px; padding-top: 20px; padding-bottom: 40px; border-top: 1px solid var(--line); color: var(--muted); }
.foot ul { margin-left: 1.2em; display: grid; gap: 6px; }

/* ---- wider screens ---- */
@media (min-width: 720px) {
  .panels { grid-template-columns: repeat(3, 1fr); }
  .panel.wallet { grid-column: span 1; }
  .scenarios { grid-template-columns: repeat(3, 1fr); }
  h1 { font-size: 1.4rem; }
}

@media (min-width: 1000px) {
  .panels { grid-template-columns: repeat(6, 1fr); }
  .panel.wallet { grid-column: 1 / span 3; }
  .panel.blockid { grid-column: 4 / span 3; order: 2; }
  .panel.ex1, .panel.ex2, .panel.ex3 { grid-column: span 2; order: 3; }
  .panel.wallet { order: 1; }
}

@media (max-width: 480px) {
  .log li { grid-template-columns: 1fr; }
  .log .tx { grid-column: 1; }
  .controls { position: static; }
}

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