/* dexr — warm, human, readable. Monospace is reserved for data: addresses,
   amounts, memos, hashes. Everything else is set in a system sans. */

:root {
  --bg: #f7f4ee;
  --panel: #fffdf9;
  --panel-2: #f1ede3;
  --line: #e4ddcf;
  --text: #24313c;
  --dim: #68767f;
  --accent: #0c8a6a;
  --accent-dim: #e2f3ec;
  --warn: #a16207;
  --bad: #b91c1c;
  --shadow: 0 1px 2px rgba(36, 49, 60, 0.05), 0 10px 30px rgba(36, 49, 60, 0.07);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d141b;
    --panel: #131b24;
    --panel-2: #0a1017;
    --line: #22303c;
    --text: #dce7ee;
    --dim: #8aa0af;
    --accent: #34d399;
    --accent-dim: #0f3d2f;
    --warn: #fbbf24;
    --bad: #f87171;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.65;
}

body {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 22px 70px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; gap: 14px; align-items: center; }
.logo {
  font-size: 30px;
  color: var(--accent);
}
h1 { margin: 0; font-size: 24px; letter-spacing: 0.5px; font-weight: 700; }
.tag { margin: 2px 0 0; color: var(--dim); font-size: 14px; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 15px;
  font-size: 12.5px;
  white-space: nowrap;
  background: var(--panel);
}
.pill .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--dim); }
.pill.ok .dot { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.pill.ok { color: var(--accent); border-color: var(--accent); }
.pill.bad .dot { background: var(--bad); box-shadow: 0 0 8px var(--bad); }
.pill.bad { color: var(--bad); }
.pill.pending { color: var(--dim); }

nav { display: flex; gap: 6px; margin: 22px 0; flex-wrap: wrap; }
.tab {
  background: transparent;
  color: var(--dim);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 8px 18px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 26px 28px;
  box-shadow: var(--shadow);
}
.hidden { display: none; }

h2 { font-size: 19px; margin: 26px 0 10px; font-weight: 650; letter-spacing: 0.1px; }
h3 { font-size: 15px; margin: 14px 0 6px; font-weight: 650; color: var(--text); }
.panel > h2:first-child { margin-top: 0; }
.hint { color: var(--dim); font-size: 14px; }
.dim { color: var(--dim); font-size: 13px; }
.mono, code, pre { font-family: var(--mono); word-break: break-all; }
code { font-size: 0.9em; background: var(--panel-2); padding: 1px 5px; border-radius: 5px; }
.err { color: var(--bad); }
.warn-line { color: var(--warn); }

.quote-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  align-items: end;
}
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--dim); font-weight: 500; }
label.wide { grid-column: 1 / -1; margin-top: 14px; }
input, select {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 13.5px;
}
input:focus, select:focus { outline: 2px solid var(--accent-dim); border-color: var(--accent); }

button.primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 11px 20px;
  font-family: var(--sans);
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
}
@media (prefers-color-scheme: dark) {
  button.primary { color: #06251b; }
}
button.primary:hover { filter: brightness(1.07); }
button.primary:disabled { opacity: 0.5; cursor: wait; }
button.ghost {
  background: transparent;
  color: var(--dim);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 16px;
  font-family: var(--sans);
  font-size: 13.5px;
  cursor: pointer;
  margin-top: 12px;
}
button.ghost:hover { color: var(--text); border-color: var(--dim); }

.card {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  margin-top: 14px;
}
.card.route { border-left: 4px solid var(--accent); }
.card.instructions { border: 1px solid var(--accent); background: var(--accent-dim); }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }

.numbers { display: flex; gap: 34px; flex-wrap: wrap; margin: 10px 0; }
.big { font-size: 20px; color: var(--accent); font-family: var(--mono); font-weight: 600; }

.badge {
  display: inline-block;
  font-size: 12px;
  border-radius: 999px;
  padding: 4px 12px;
  margin: 8px 0;
  border: 1px solid;
}
.badge.good { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); }
.badge.warn { color: var(--warn); border-color: var(--warn); background: transparent; }
.badge.bad { color: var(--bad); border-color: var(--bad); background: transparent; }

.state { font-size: 12px; padding: 3px 10px; border-radius: 999px; }
.state.on { color: var(--accent); background: var(--accent-dim); border: 1px solid var(--accent); }
.state.off { color: var(--dim); background: var(--panel); border: 1px solid var(--line); }

.notes { margin: 8px 0 0; padding-left: 20px; font-size: 14px; color: var(--dim); }
.notes li { margin: 6px 0; }
.notes strong { color: var(--text); }
.big-notes li { margin: 10px 0; font-size: 15px; color: var(--text); }
.big-notes strong { color: var(--accent); font-weight: 650; }

.checks { list-style: none; padding-left: 0; margin: 10px 0; }
.checks li { margin: 8px 0; font-size: 14.5px; }
.checks .ok-mark { color: var(--accent); font-weight: 700; }
.checks .wait-mark { color: var(--warn); font-weight: 700; }
.checks .bad-mark { color: var(--bad); font-weight: 700; }

table.kv { border-collapse: collapse; width: 100%; margin-top: 8px; }
table.kv td, table.kv th { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); font-size: 13.5px; }
table.kv td:first-child, table.kv th:first-child { color: var(--dim); width: 140px; }
table.kv td:last-child { font-family: var(--mono); word-break: break-all; }

details.raw { margin-top: 12px; }
details.raw summary { cursor: pointer; color: var(--dim); font-size: 13px; }
details.raw pre {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  font-size: 11.5px;
  overflow-x: auto;
  max-height: 340px;
  overflow-y: auto;
}

footer {
  margin-top: 38px;
  color: var(--dim);
  font-size: 12.5px;
  text-align: center;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

/* how it works */
.diagram-wrap { overflow-x: auto; margin: 12px 0 4px; }
.diagram-wrap svg { width: 100%; min-width: 640px; height: auto; display: block; }
.diagram-wrap text { font-family: var(--mono); }
.how-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 10px; }
@media (max-width: 640px) { .how-cols { grid-template-columns: 1fr; } }

/* step-by-step zigzag: text beside a full-width capture, sides alternate */
.step-row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 30px;
  align-items: center;
  margin: 40px 0;
}
.step-row.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.step-row.flip .step-img { order: -1; }
.step-row .step-text h3 { font-size: 17px; margin: 0 0 8px; }
.step-row .step-text p { margin: 0; font-size: 14.5px; color: var(--text); }
.step-img { margin: 0; min-width: 0; }
.step-img img {
  width: 100%;
  display: block;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.step-img figcaption { font-size: 12.5px; color: var(--dim); margin-top: 8px; }
@media (max-width: 760px) {
  .step-row, .step-row.flip { grid-template-columns: 1fr; gap: 14px; margin: 30px 0; }
  .step-row .step-img, .step-row.flip .step-img { order: 2; }
}