/* TokenTonic -- D23 Brass Steampunk variant (copper + dark steel, pipes, blueprint cards) */
:root {
  --steel: #2a2f3a;
  --steel-deep: #1f242e;
  --panel: #333a47;
  --panel-2: #3d4556;
  --line: #4a5365;
  --copper: #b87333;
  --copper-hi: #d99a5b;
  --copper-deep: #8a5a24;
  --ink: #ece5d3;
  --muted: #b3a98f;
  --faint: #7d7666;
  --blueprint: #1b3a5c;
  --blueprint-line: #7fb3d5;
  --radius: 10px;
  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--steel-deep); color: var(--ink);
  font-family: var(--font-body); font-size: 16.5px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  background-image: radial-gradient(circle at 1px 1px, rgba(184,115,51,.07) 1px, transparent 0);
  background-size: 28px 28px;
}
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 22px; position: relative; z-index: 1; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(31, 36, 46, .94); backdrop-filter: blur(10px);
  border-bottom: 3px solid var(--copper);
}
.site-header .wrap { display: flex; align-items: center; gap: 24px; padding-top: 12px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; color: var(--ink); }
.brand svg { width: 36px; height: 36px; flex: none; }
.brand-name { font-family: var(--font-display); font-weight: 600; font-size: 23px; letter-spacing: 1.5px; text-transform: uppercase; }
.brand-name em { font-style: normal; color: var(--copper-hi); }
.nav { margin-left: auto; display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
.nav a {
  color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600;
  letter-spacing: .6px; text-transform: uppercase;
  padding: 9px 13px; border-radius: 6px; white-space: nowrap;
}
.nav a:hover { color: var(--ink); background: var(--panel); }
.nav a.cta { background: var(--copper); color: #1a1206; font-weight: 700; }
.nav a.cta:hover { background: var(--copper-hi); color: #1a1206; }

/* ---------- hero ---------- */
.hero { padding: 56px 0 10px; }
.pipe { width: 220px; height: auto; margin-bottom: 18px; display: block; }
.hero h1 {
  font-family: var(--font-display); font-size: clamp(34px, 5vw, 56px);
  line-height: 1.08; margin: 0 0 14px; max-width: 18ch; font-weight: 600;
  letter-spacing: .5px; text-transform: uppercase;
}
.hero h1 .hl { color: var(--copper-hi); }
.hero .lede { color: var(--muted); font-size: 18px; max-width: 62ch; margin: 0 0 30px; }
.hero .lede strong { color: var(--ink); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--copper-hi); border: 2px solid var(--copper); border-radius: 6px;
  padding: 8px 16px; margin-bottom: 18px; background: rgba(184, 115, 51, .1);
}
.eyebrow svg { width: 14px; height: 14px; }

/* ---------- tool console (riveted panel) ---------- */
.console {
  background: linear-gradient(180deg, var(--panel), var(--steel));
  border: 3px solid var(--copper); border-radius: var(--radius);
  overflow: hidden; margin-bottom: 26px; position: relative;
  box-shadow: 0 26px 60px rgba(0, 0, 0, .5), inset 0 0 0 1px rgba(217, 154, 91, .25);
}
.console-bar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 14px 20px; border-bottom: 3px solid var(--copper);
  background: var(--steel-deep);
}
.rivets { display: flex; gap: 8px; }
.rivets i { width: 10px; height: 10px; border-radius: 50%; display: block;
  background: radial-gradient(circle at 35% 35%, var(--copper-hi), var(--copper-deep)); }
.console-title { font-family: var(--font-mono); font-size: 13px; color: var(--faint); letter-spacing: 1px; text-transform: uppercase; }
.privacy-chip {
  margin-left: auto; display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; font-weight: 700; color: var(--copper-hi); letter-spacing: .5px;
  border: 2px solid var(--copper); border-radius: 6px; padding: 6px 12px;
  background: rgba(184, 115, 51, .12); white-space: nowrap; text-transform: uppercase;
}
.privacy-chip svg { width: 14px; height: 14px; }
.console-body { padding: 28px; }
.opts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 28px; margin-bottom: 24px; }
.opt-label { display: block; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.6px; color: var(--copper-hi); margin-bottom: 10px; }
.seg { display: flex; gap: 8px; flex-wrap: wrap; }
.seg button {
  border: 2px solid var(--line); background: var(--steel-deep); color: var(--muted);
  font-family: var(--font-mono); font-size: 13.5px; font-weight: 600;
  padding: 10px 16px; border-radius: 6px; cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.seg button:hover { border-color: var(--copper); color: var(--ink); }
.seg button[aria-pressed="true"] { background: var(--copper); border-color: var(--copper-hi); color: #1a1206; font-weight: 700; }
.num-row { display: flex; align-items: center; gap: 14px; }
input[type="number"] {
  background: var(--steel-deep); border: 2px solid var(--line); color: var(--ink);
  border-radius: 6px; padding: 10px 14px; font-family: var(--font-mono); font-size: 15px; width: 92px;
}
input[type="range"] { accent-color: var(--copper); width: 170px; }
.range-val { font-family: var(--font-mono); color: var(--copper-hi); font-size: 15px; min-width: 30px; font-weight: 600; }
.opt-hint { font-size: 13px; color: var(--faint); margin-top: 8px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 6px 0 22px; align-items: center; }
.btn {
  appearance: none; border: 2px solid var(--line); cursor: pointer;
  background: var(--panel-2); color: var(--ink);
  font-family: var(--font-display); font-weight: 600; font-size: 15px; letter-spacing: 1px; text-transform: uppercase;
  padding: 13px 22px; border-radius: 6px;
  display: inline-flex; align-items: center; gap: 9px; text-decoration: none;
  transition: background .15s, border-color .15s, transform .08s;
}
.btn svg { width: 17px; height: 17px; }
.btn:hover { border-color: var(--copper); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--copper); border-color: var(--copper-hi); color: #1a1206; }
.btn.primary:hover { background: var(--copper-hi); }
.btn.plain { background: transparent; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.copy-note { font-size: 13px; color: var(--faint); }
.output {
  background: #141821; border: 2px solid var(--line); border-radius: var(--radius);
  padding: 22px 24px; min-height: 150px;
}
.output.empty { display: flex; align-items: center; justify-content: center; color: var(--faint); font-size: 14.5px; }
.tokens { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr; gap: 10px; }
.tokens li {
  font-family: var(--font-mono); font-size: 13.5px; color: var(--ink); word-break: break-all;
  background: rgba(184, 115, 51, .06); border: 1px solid rgba(184, 115, 51, .3);
  border-radius: 6px; padding: 10px 14px;
  display: flex; align-items: center; gap: 12px; cursor: pointer;
}
.tokens li:hover { border-color: var(--copper); }
.tokens li .idx { color: var(--faint); font-size: 12px; min-width: 24px; flex: none; }
.tokens li .mini-copy { margin-left: auto; color: var(--faint); font-size: 12px; flex: none; opacity: 0; transition: opacity .15s; }
.tokens li:hover .mini-copy { opacity: 1; }
.output-meta { margin-top: 14px; font-family: var(--font-mono); font-size: 12.5px; color: var(--faint); }
.limits {
  border: 2px solid var(--copper); border-radius: var(--radius);
  background: rgba(184, 115, 51, .08); padding: 24px 26px; max-width: 900px; margin-top: 24px;
}
.limits h3 { font-family: var(--font-display); margin: 0 0 10px; color: var(--copper-hi); font-size: 20px; letter-spacing: 1px; text-transform: uppercase; display: flex; align-items: center; gap: 10px; }
.limits h3 svg { width: 22px; height: 22px; }
.limits ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 15px; }
.limits li { margin-bottom: 8px; }
.limits li strong { color: var(--ink); }

/* ---------- content: blueprint cards ---------- */
.section { padding: 54px 0 8px; }
.section h2 { font-family: var(--font-display); font-size: clamp(26px, 3.4vw, 36px); margin: 0 0 8px; letter-spacing: 1px; text-transform: uppercase; font-weight: 600; }
.section h2 .hl { color: var(--copper-hi); }
.section .sub { color: var(--muted); max-width: 68ch; margin: 0 0 30px; font-size: 17px; }
.cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background-color: var(--blueprint);
  background-image:
    linear-gradient(rgba(127, 179, 213, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 179, 213, .09) 1px, transparent 1px);
  background-size: 22px 22px;
  border: 2px dashed var(--blueprint-line); border-radius: var(--radius);
  padding: 28px 24px; position: relative; transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-3px); border-color: #bcd9ef; }
.card .n {
  font-family: var(--font-mono); font-size: 12.5px; color: #d9ecf9;
  border: 1px dashed var(--blueprint-line); border-radius: 4px;
  display: inline-block; padding: 4px 10px; margin-bottom: 14px; letter-spacing: 1px;
}
.card h3 { font-family: var(--font-display); margin: 0 0 8px; font-size: 20px; color: #f2f7fc; letter-spacing: .6px; font-weight: 600; }
.card p { margin: 0; color: #b9d2e8; font-size: 15px; }
.card .gear { width: 30px; height: 30px; margin-bottom: 12px; color: var(--copper-hi); }
a.card-link { text-decoration: none; color: inherit; display: block; }
a.card-link:hover h3 { color: var(--copper-hi); }
.card .go { display: inline-block; margin-top: 12px; color: var(--copper-hi); font-weight: 700; font-size: 14px; letter-spacing: .5px; }
.faq { max-width: 840px; }
.faq details {
  border: 2px solid var(--line); border-radius: var(--radius);
  margin-bottom: 12px; background: var(--panel); overflow: hidden;
}
.faq summary {
  cursor: pointer; padding: 18px 22px; font-weight: 600; font-size: 16.5px;
  font-family: var(--font-display); letter-spacing: .5px; list-style: none; display: flex; justify-content: space-between; gap: 14px; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .plus { color: var(--copper-hi); font-size: 22px; flex: none; font-weight: 400; }
.faq details[open] summary .plus { transform: rotate(45deg); }
.faq .answer { padding: 0 22px 20px; color: var(--muted); font-size: 15.5px; }
.faq .answer strong { color: var(--ink); }
.faq .answer a { color: var(--copper-hi); }
.cta-box {
  border: 2px dashed var(--blueprint-line); border-radius: var(--radius);
  background-color: var(--blueprint);
  background-image: linear-gradient(rgba(127,179,213,.09) 1px, transparent 1px), linear-gradient(90deg, rgba(127,179,213,.09) 1px, transparent 1px);
  background-size: 22px 22px;
  padding: 28px 30px; max-width: 900px; margin-top: 30px;
}
.cta-box h3 { font-family: var(--font-display); margin: 0 0 8px; color: #f2f7fc; font-size: 21px; letter-spacing: .6px; }
.cta-box p { margin: 0 0 14px; color: #b9d2e8; }

/* ---------- footer ---------- */
footer { border-top: 3px solid var(--copper); margin-top: 70px; background: #181d26; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 34px; padding-top: 40px; padding-bottom: 30px; }
.foot-brand { max-width: 330px; }
.foot-brand p { color: var(--faint); font-size: 14px; }
.foot-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 2px; color: var(--copper-hi); margin: 0 0 12px; font-weight: 700; }
.foot-col a { display: block; color: var(--muted); text-decoration: none; font-size: 14.5px; margin-bottom: 8px; }
.foot-col a:hover { color: var(--copper-hi); }
.foot-base { width: 100%; border-top: 1px solid var(--line); padding-top: 18px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; color: var(--faint); font-size: 13px; }

/* ---------- inner pages ---------- */
.page-hero { padding: 52px 0 10px; }
.page-hero h1 { font-family: var(--font-display); font-size: clamp(30px, 4.4vw, 44px); letter-spacing: 1px; text-transform: uppercase; margin: 0 0 10px; font-weight: 600; }
.page-hero h1 .hl { color: var(--copper-hi); }
.page-hero p { color: var(--muted); max-width: 66ch; }
.page-hero .breadcrumb { font-size: 13px; color: var(--faint); margin-bottom: 14px; font-family: var(--font-mono); letter-spacing: .5px; }
.page-hero .breadcrumb a { color: var(--copper-hi); text-decoration: none; }
.prose { max-width: 770px; padding-bottom: 30px; }
.prose h2 { font-family: var(--font-display); font-size: 24px; margin: 38px 0 10px; letter-spacing: .8px; text-transform: uppercase; font-weight: 600; }
.prose h2 .hl { color: var(--copper-hi); }
.prose h3 { font-family: var(--font-display); font-size: 19px; margin: 26px 0 8px; letter-spacing: .5px; }
.prose p, .prose li { color: var(--muted); font-size: 16px; }
.prose strong { color: var(--ink); }
.prose a { color: var(--copper-hi); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 7px; }
.prose code { font-family: var(--font-mono); font-size: 13.5px; background: #141821; border: 1px solid var(--line); padding: 2px 8px; border-radius: 4px; color: var(--copper-hi); word-break: break-all; }
.updated { font-size: 13px; color: var(--faint); font-family: var(--font-mono); letter-spacing: .5px; }
table.data { width: 100%; border-collapse: collapse; font-size: 15px; background: var(--panel); }
.data th, .data td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); }
.data th { font-family: var(--font-display); font-size: 14px; letter-spacing: 1px; text-transform: uppercase; color: var(--copper-hi); background: rgba(184, 115, 51, .1); }
.data tr:last-child td { border-bottom: none; }
.table-scroll { overflow-x: auto; border-radius: var(--radius); border: 2px solid var(--line); margin: 20px 0; }
.note-box { border: 2px dashed var(--blueprint-line); background-color: var(--blueprint); background-image: linear-gradient(rgba(127,179,213,.09) 1px, transparent 1px), linear-gradient(90deg, rgba(127,179,213,.09) 1px, transparent 1px); background-size: 22px 22px; border-radius: var(--radius); padding: 20px 22px; margin: 24px 0; }
.note-box p { margin: 0; color: #b9d2e8; font-size: 15px; }
.note-box strong { color: #f2f7fc; }
.note-box a { color: var(--copper-hi); }
.warn-box { border: 2px solid #c0392b; background: rgba(192, 57, 43, .1); border-radius: var(--radius); padding: 20px 22px; margin: 24px 0; }
.warn-box p { margin: 0; color: #d8a49c; font-size: 15px; }
.warn-box strong { color: var(--ink); }
.form-card { background: var(--panel); border: 2px solid var(--line); border-radius: var(--radius); padding: 28px; max-width: 640px; margin-top: 24px; }
.form-card .field { margin-bottom: 16px; }
.form-card label { display: block; font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); margin-bottom: 7px; }
.form-card input[type="text"], .form-card textarea {
  width: 100%; font-family: var(--font-body); background: var(--steel-deep);
  border: 2px solid var(--line); color: var(--ink); border-radius: 6px; padding: 10px 14px; font-size: 15px;
}
.form-card textarea { min-height: 130px; resize: vertical; }
.form-note { font-size: 13.5px; color: var(--faint); margin-top: 12px; }
.form-ok { display: none; border: 2px solid var(--copper); background: rgba(184,115,51,.1); border-radius: 6px; padding: 14px 18px; color: var(--muted); font-size: 14.5px; margin-top: 14px; }
.notfound { text-align: center; padding: 90px 0 60px; }
.notfound .code { font-family: var(--font-display); font-size: clamp(80px, 14vw, 150px); font-weight: 700; color: var(--copper); margin: 0; letter-spacing: 2px; }
.notfound h1 { font-family: var(--font-display); font-size: 28px; margin: 6px 0 12px; letter-spacing: 1px; text-transform: uppercase; }
.notfound p { color: var(--muted); max-width: 52ch; margin: 0 auto 28px; }
.notfound .actions { justify-content: center; }

@media (max-width: 860px) {
  .cards3 { grid-template-columns: 1fr; }
  .opts { grid-template-columns: 1fr; }
  .nav a:not(.cta) { display: none; }
  .console-body { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}