/* Layout: one narrow reading column on forge-dark iron; the hero glows like a bar fresh from the tatara, everything else stays cool and quiet. Single dark theme by choice. */
:root {
  --iron: #131110;      /* page: cold iron */
  --slag: #1d1a17;      /* raised surfaces */
  --scale: #35302b;     /* mill-scale lines */
  --ash: #a89d92;       /* secondary text */
  --ingot: #eee7df;     /* main text */
  --ember: #ff6b1c;     /* orange heat, the accent */
  --glow: #ffc95e;      /* yellow heat */
  --cherry: #a8231b;    /* dark-red heat */
  --on-molten: #1d0c03;
  --font-display: "Zen Antique", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--iron); color: var(--ingot);
  font-family: var(--font-body); font-size: 16px; line-height: 1.85;
}
.wrap {
  max-width: 900px; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
a { color: var(--glow); text-underline-offset: 3px; }
a:hover { color: var(--ember); }
a:focus-visible, .btn:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; }
h1, h2, h3 { line-height: 1.35; text-wrap: balance; margin: 0; font-weight: 400; }
h2 { font-family: var(--font-display); font-size: 1.5rem; letter-spacing: .04em; }
h3 { font-size: 1.08rem; font-weight: 700; }
p { margin: 0; }
.prose { max-width: 40em; display: grid; gap: 14px; }
.prose ul, .prose ol { margin: 0; padding-left: 1.3em; }
.prose h2 { font-size: 1.2rem; margin-top: 12px; }

.site-head { border-bottom: 1px solid var(--scale); background: linear-gradient(var(--slag), var(--iron)); }
.site-head .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 24px; padding-block: 14px; }
.brand { font-family: var(--font-display); font-size: 1.2rem; letter-spacing: .14em; color: var(--ingot); text-decoration: none; display: inline-flex; align-items: center; gap: 10px; }
.brand::before { content: ""; width: 10px; height: 10px; border-radius: 2px; background: var(--ember); box-shadow: 0 0 10px 2px color-mix(in srgb, var(--ember) 60%, transparent); }
.nav { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: .9rem; }
.nav a { color: var(--ash); text-decoration: none; }
.nav a:hover { color: var(--glow); }

main .wrap { display: grid; gap: 64px; padding-block: 56px 80px; }
section { display: grid; gap: 18px; }
.eyebrow { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ember); }
.hero { position: relative; gap: 18px; isolation: isolate; }
.hero h1 {
  font-family: var(--font-display); font-size: clamp(2rem, 5.4vw, 3.1rem); letter-spacing: .03em;
  background: linear-gradient(100deg, var(--ingot) 0%, var(--ingot) 45%, var(--glow) 72%, var(--ember) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { font-size: 1.08rem; color: var(--ash); max-width: 36em; }
.hero::after { /* the bar fresh from the furnace */
  content: ""; order: 2; height: 4px; width: min(100%, 420px); border-radius: 2px;
  background: linear-gradient(90deg, var(--cherry), var(--ember) 45%, var(--glow) 85%, #fff4dc);
  box-shadow: 0 0 18px 2px color-mix(in srgb, var(--ember) 45%, transparent);
}
.hero > * { order: 1; }
.hero > .lead, .hero > .actions, .hero > .heat { order: 3; }
.embers { position: absolute; inset: -40px 0 -20px; width: 100%; height: calc(100% + 60px); z-index: -1; pointer-events: none; }
.tagline { font-family: var(--font-mono); font-size: .88rem; color: var(--ash); }

.heat { display: grid; gap: 6px; max-width: 520px; }
.heat .bar { display: grid; grid-template-columns: repeat(5, 1fr); height: 10px; border-radius: 3px; overflow: hidden; }
.heat .bar span:nth-child(1) { background: #5a1410; }
.heat .bar span:nth-child(2) { background: var(--cherry); }
.heat .bar span:nth-child(3) { background: var(--ember); }
.heat .bar span:nth-child(4) { background: var(--glow); }
.heat .bar span:nth-child(5) { background: #fff4dc; }
.heat .scale { display: grid; grid-template-columns: repeat(5, 1fr); font-family: var(--font-mono); font-size: .7rem; color: var(--ash); font-variant-numeric: tabular-nums; }
.heat .note { font-size: .78rem; color: var(--ash); }

.btn {
  display: inline-block; padding: 10px 22px; border-radius: 4px; text-decoration: none; font-weight: 700;
  background: linear-gradient(180deg, var(--glow), var(--ember)); color: var(--on-molten);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--ember) 60%, black), 0 6px 20px -8px var(--ember);
}
.btn:hover { color: var(--on-molten); filter: brightness(1.08); }
.btn[aria-disabled="true"] { background: var(--slag); color: var(--ash); box-shadow: 0 0 0 1px var(--scale); cursor: not-allowed; filter: none; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

.products { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 20px; }
.product {
  background: linear-gradient(180deg, var(--slag), var(--iron)); border: 1px solid var(--scale); border-radius: 6px;
  padding: 26px; display: grid; gap: 12px; align-content: start; min-width: 0; position: relative; overflow: hidden;
}
.product::before { content: ""; position: absolute; inset: 0 0 auto; height: 2px; background: linear-gradient(90deg, transparent, var(--ember), transparent); opacity: .7; }
.product h3 { font-family: var(--font-display); font-weight: 400; font-size: 1.45rem; letter-spacing: .02em; }
.product .meta { display: flex; flex-wrap: wrap; gap: 8px; }
.pill { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .04em; padding: 1px 10px; border-radius: 3px; border: 1px solid var(--scale); color: var(--ash); }
.pill.soon { border-color: color-mix(in srgb, var(--ember) 55%, transparent); color: var(--glow); background: color-mix(in srgb, var(--ember) 10%, transparent); }

.flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); gap: 18px; counter-reset: step; }
.flow li { counter-increment: step; border-top: 2px solid var(--ember); padding-top: 12px; display: grid; gap: 6px; align-content: start; }
.flow li:nth-child(1) { border-color: var(--cherry); }
.flow li:nth-child(3) { border-color: var(--glow); }
.flow li::before { content: "STEP " counter(step); font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; color: var(--ash); }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: 11px 12px; border-bottom: 1px solid var(--scale); }
th { font-weight: 700; white-space: nowrap; color: var(--ingot); }
td { color: color-mix(in srgb, var(--ingot) 88%, var(--ash)); }
td code, p code, li code { font-family: var(--font-mono); font-size: .86em; color: var(--glow); }

.draft { border: 1px dashed color-mix(in srgb, var(--ember) 60%, transparent); background: color-mix(in srgb, var(--ember) 7%, transparent); border-radius: 4px; padding: 14px 18px; font-size: .92rem; }
.draft strong { color: var(--ember); }
.ph { color: var(--glow); background: color-mix(in srgb, var(--glow) 12%, transparent); padding: 0 5px; border-radius: 2px; font-family: var(--font-mono); font-size: .88em; }

.site-foot { border-top: 1px solid var(--scale); font-size: .85rem; color: var(--ash); background: linear-gradient(var(--iron), #0c0b0a); }
.site-foot .wrap { display: grid; gap: 14px; padding-block: 30px 44px; }
.site-foot .links { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.site-foot .links a { color: var(--ash); }
.site-foot .links a:hover { color: var(--glow); }
.notice { font-size: .76rem; line-height: 1.6; max-width: 60em; }