/* ==========================================================================
   UnitSwap — content pages
   Palette lifted from index.html so these pages sit alongside the converter.
   ========================================================================== */

:root {
  --bg:          #0E1117;
  --bg-card:     #161B27;
  --bg-input:    #1C2333;
  --bg-hover:    #1E2640;
  --border:      #2A3450;
  --accent:      #4F8EF7;
  --accent-dim:  #2D5BB3;
  --accent-glow: rgba(79,142,247,0.18);
  --text:        #E8EDF7;
  --text-dim:    #8C9AB5;
  --success:     #3FCF8E;
  --warn:        #F0A94C;

  --mono: 'SF Mono','Fira Code','Cascadia Code',ui-monospace,monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --measure: 70ch;
  --r: 12px;
}

[data-theme="light"] {
  --bg:          #F7F9FC;
  --bg-card:     #FFFFFF;
  --bg-input:    #F0F4FA;
  --bg-hover:    #E8EFFA;
  --border:      #DDE4F0;
  --accent:      #2563EB;
  --accent-dim:  #1D4ED8;
  --accent-glow: rgba(37,99,235,0.14);
  --text:        #131A2B;
  --text-dim:    #5A6880;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* numbers are the product here — give them a real treatment */
.num, td.n, .fig {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.fig { color: var(--accent); font-weight: 600; }

a { color: var(--accent); }
a:hover { color: var(--accent-dim); }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 8px; top: 8px; background: var(--accent); color: #fff; padding: 10px 14px; z-index: 99; }

/* ── nav ─────────────────────────────────────────────────────────────────── */
nav {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  padding: 16px 24px; border-bottom: 1px solid var(--border);
  background: var(--bg-card); position: sticky; top: 0; z-index: 40;
}
.nav-logo {
  font-weight: 800; font-size: 19px; letter-spacing: -0.5px;
  text-decoration: none; color: var(--text);
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 20px; margin-left: auto; flex-wrap: wrap; }
.nav-links a {
  font-size: 14px; font-weight: 500; text-decoration: none; color: var(--text-dim);
  padding: 4px 0; border-bottom: 2px solid transparent;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); }

/* ── layout ──────────────────────────────────────────────────────────────── */
.wrap { max-width: 880px; margin: 0 auto; padding: 0 24px; }
main { display: block; }

.crumbs { font-size: 13px; color: var(--text-dim); padding: 20px 0 0; }
.crumbs a { color: var(--text-dim); }

.page-head { padding: 18px 0 30px; border-bottom: 1px solid var(--border); margin-bottom: 34px; }
.eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 12px;
}
h1 {
  font-size: clamp(28px, 4.4vw, 40px); font-weight: 800; letter-spacing: -1px;
  line-height: 1.15; margin: 0 0 14px;
}
h1 em { font-style: italic; color: var(--accent); }
.standfirst { font-size: 18px; color: var(--text-dim); max-width: 62ch; margin: 0; line-height: 1.6; }

article { max-width: var(--measure); }
article h2 {
  font-size: clamp(21px, 2.6vw, 26px); font-weight: 700; letter-spacing: -0.4px;
  margin: 42px 0 12px;
}
article h3 { font-size: 17px; font-weight: 700; margin: 28px 0 8px; }
article p { margin: 0 0 16px; }
article ul, article ol { margin: 0 0 18px; padding-left: 22px; }
article li { margin-bottom: 8px; }
article strong { font-weight: 700; color: var(--text); }

/* ── formula bar, matching the converter ─────────────────────────────────── */
.formula {
  font-family: var(--mono); font-size: 14px; color: var(--accent);
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px 18px; margin: 22px 0;
  overflow-x: auto; white-space: nowrap;
}

.note, .warn-box {
  border-left: 3px solid var(--accent); background: var(--bg-card);
  padding: 16px 20px; margin: 24px 0; border-radius: 0 8px 8px 0; font-size: 15px;
}
.warn-box { border-left-color: var(--warn); }
.note p:last-child, .warn-box p:last-child { margin-bottom: 0; }
.note .lbl, .warn-box .lbl {
  display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.13em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 6px;
}
.warn-box .lbl { color: var(--warn); }

/* ── tables ──────────────────────────────────────────────────────────────── */
.tscroll { overflow-x: auto; margin: 24px 0; }
table {
  width: 100%; border-collapse: collapse; font-size: 14.5px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r);
}
caption { text-align: left; font-size: 13px; color: var(--text-dim); padding-bottom: 8px; }
th, td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
th {
  font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--text-dim); background: var(--bg-input);
}
td { font-family: var(--mono); font-variant-numeric: tabular-nums; }
td:first-child { color: var(--text-dim); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: var(--bg-hover); }

/* ── cards ───────────────────────────────────────────────────────────────── */
.grid {
  display: grid; gap: 16px; margin: 28px 0;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.card {
  display: block; text-decoration: none; color: inherit;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r); padding: 20px;
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card .kick {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 8px;
}
.card h3 { font-size: 17px; font-weight: 700; margin: 0 0 6px; letter-spacing: -0.2px; }
.card p { font-size: 14px; color: var(--text-dim); margin: 0; line-height: 1.55; }

/* ── CTA ─────────────────────────────────────────────────────────────────── */
.cta {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r); padding: 24px 26px; margin: 38px 0 0;
  display: flex; gap: 18px; align-items: center; justify-content: space-between; flex-wrap: wrap;
}
.cta p { margin: 0; max-width: 46ch; font-size: 15px; color: var(--text-dim); }
.cta strong { display: block; color: var(--text); font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.btn {
  display: inline-block; background: var(--accent); color: #fff; font-weight: 600;
  padding: 11px 22px; border-radius: 8px; text-decoration: none; font-size: 15px; white-space: nowrap;
}
.btn:hover { background: var(--accent-dim); color: #fff; }

.related { border-top: 1px solid var(--border); margin-top: 44px; padding-top: 24px; }
.related h2 { font-size: 18px; margin: 0 0 14px; }
.related ul { list-style: none; padding: 0; margin: 0; }
.related li { margin-bottom: 9px; }

/* ── ad slot ─────────────────────────────────────────────────────────────── */
.ad-slot { margin: 34px 0; text-align: center; min-height: 90px; }
.ad-lbl {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--text-dim); display: block; margin-bottom: 6px;
}

/* ── footer ──────────────────────────────────────────────────────────────── */
footer {
  margin-top: 60px; border-top: 1px solid var(--border);
  background: var(--bg-card); padding: 30px 24px; font-size: 14px; color: var(--text-dim);
}
.foot-inner { max-width: 880px; margin: 0 auto; }
.foot-links { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 14px; }
.foot-links a { text-decoration: none; }
.foot-note { font-size: 13px; line-height: 1.7; }

a:focus-visible, .card:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px;
}
@media (prefers-reduced-motion: reduce) {
  * { transition-duration: .01ms !important; scroll-behavior: auto !important; }
}
@media (max-width: 600px) {
  nav { gap: 12px; padding: 14px 16px; }
  .nav-links { margin-left: 0; width: 100%; gap: 14px; }
  .wrap { padding: 0 16px; }
  .cta { padding: 20px; }
}