/* Alan Wisper — site styles. Light-first tokens; dark via system or data-theme. */
:root {
  --bg: #F5F7F6;
  --bg-2: #EAF0ED;
  --text: #17201D;
  --muted: #5F6E69;
  --line: #D3DBD7;
  --accent: #0F7B6C;
  --accent-2: #0A5C51;
  --on-accent: #FFFFFF;
  --ok: #2E7D32;
  --warn: #B26A00;
  --bad: #B3261E;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --measure: 68ch;
  --wide: 64rem;
  --radius: 6px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E1412;
    --bg-2: #172019;
    --text: #E6ECE9;
    --muted: #97A69F;
    --line: #2A3631;
    --accent: #4CC9B0;
    --accent-2: #7ADCC8;
    --on-accent: #0E1412;
    --ok: #66BB6A;
    --warn: #E0A23A;
    --bad: #EF6A62;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0E1412;
  --bg-2: #172019;
  --text: #E6ECE9;
  --muted: #97A69F;
  --line: #2A3631;
  --accent: #4CC9B0;
  --accent-2: #7ADCC8;
  --on-accent: #0E1412;
  --ok: #66BB6A;
  --warn: #E0A23A;
  --bad: #EF6A62;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
}
img, svg { max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.15em; }
a:hover { color: var(--accent-2); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { line-height: 1.2; text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.75rem, 1.2rem + 2.6vw, 2.75rem); font-weight: 700; }
h2 { font-size: 1.375rem; font-weight: 700; }
h3 { font-size: 1.0625rem; font-weight: 700; }
p { margin: 0; }
code, kbd, pre, .mono { font-family: var(--mono); font-size: 0.9em; }
kbd {
  border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px;
  padding: 0 0.35em; background: var(--bg-2); font-size: 0.8em;
}
pre {
  margin: 0; padding: 1rem; overflow-x: auto;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius);
  line-height: 1.5;
}
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; background: var(--bg-2); }
tr:last-child td { border-bottom: 0; }
.num { font-variant-numeric: tabular-nums; }

.wrap { max-width: var(--wide); margin-inline: auto; padding-inline: clamp(16px, 4vw, 32px); }
.measure { max-width: var(--measure); }
.stack { display: grid; gap: 1rem; }
.stack-lg { display: grid; gap: 2.5rem; }
.row { display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; align-items: center; }
.eyebrow {
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--muted);
}
.muted { color: var(--muted); }
.lede { font-size: 1.2rem; line-height: 1.55; }

/* Header */
.top {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 0.75rem 1.5rem;
  padding-block: 1.25rem; border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
.brand:hover { color: var(--accent); }
.nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; align-items: center; }
.nav a { color: var(--muted); text-decoration: none; padding-block: 0.25rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); }
.nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--accent); }
.theme-btn {
  border: 1px solid var(--line); background: transparent; color: var(--muted); font: inherit;
  padding: 0.2rem 0.6rem; border-radius: 999px; cursor: pointer; font-size: 0.85rem;
}
.theme-btn:hover { color: var(--text); border-color: var(--muted); }

main { padding-block: 2.5rem 3.5rem; }
section > h2, article > h2 { margin-bottom: 1rem; }

/* Hero */
.hero { display: grid; gap: 1.25rem; }
.hero h1 { max-width: 26ch; }
.hero .links a { text-decoration: none; }
.hero .links a[href^="http"]::after { content: " ↗"; color: var(--muted); font-size: 0.85em; }

/* Demo panel */
.demo {
  border: 1px solid var(--line); background: var(--bg-2); border-radius: var(--radius);
  padding: 1.25rem; display: grid; gap: 1rem;
}
.demo form { display: grid; gap: 0.6rem; }
.demo .field { display: grid; gap: 0.35rem; }
.demo label { font-weight: 600; font-size: 0.95rem; }
.demo input[type="url"] {
  width: 100%; font: inherit; font-family: var(--mono); font-size: 0.9rem;
  padding: 0.6rem 0.7rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--bg); color: var(--text);
}
.demo .actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.btn {
  font: inherit; font-weight: 600; font-size: 0.95rem; cursor: pointer;
  padding: 0.55rem 0.95rem; border-radius: var(--radius); border: 1px solid transparent;
  background: var(--accent); color: var(--on-accent);
}
.btn:hover { background: var(--accent-2); }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--muted); }
.result {
  display: grid; gap: 0.35rem; padding: 0.9rem 1rem; border-radius: var(--radius);
  background: var(--bg); border: 1px solid var(--line);
}
.result .big { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.01em; }
.result dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.2rem 1rem; margin: 0; font-size: 0.95rem; }
.result dt { color: var(--muted); }
.result dd { margin: 0; }
.result.error { border-color: var(--bad); }
.result.error .big { color: var(--bad); font-size: 1.1rem; }
.demo .note { font-size: 0.85rem; color: var(--muted); }

/* Currently */
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0.4rem 1.25rem; margin: 0; }
.kv dt { color: var(--muted); font-family: var(--mono); font-size: 0.85rem; padding-top: 0.15rem; }
.kv dd { margin: 0; }

/* Lists of posts */
.posts { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.9rem; }
.posts li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 0.25rem 1rem; align-items: baseline; }
.posts time { font-family: var(--mono); font-size: 0.85rem; color: var(--muted); }
.posts .meta { font-size: 0.9rem; color: var(--muted); }
.chip {
  display: inline-block; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 0.1rem 0.5rem; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); vertical-align: middle;
}
.chip.building { color: var(--accent); border-color: var(--accent); }
.chip.design { color: var(--warn); border-color: var(--warn); }
.chip.paused { color: var(--muted); }
.chip.draft { color: var(--warn); border-color: var(--warn); }

/* Projects */
.projects { display: grid; gap: 2.5rem; }
.project { display: grid; gap: 1rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.project header { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 0.75rem; }
.project .stack-line { font-family: var(--mono); font-size: 0.85rem; color: var(--muted); }
.project ul { margin: 0; padding-left: 1.2rem; }
.project .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1.25rem; }
.project h3 { margin-bottom: 0.4rem; }
.proofs { display: grid; gap: 0.5rem; }
.proofs .bar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; height: 8px; }
.proofs .bar span { background: var(--line); border-radius: 2px; }
.proofs .bar span.done { background: var(--ok); }
.proofs ol { margin: 0; padding-left: 1.2rem; font-size: 0.95rem; }
.proofs .label { font-family: var(--mono); font-size: 0.85rem; }

/* Article */
.article { display: grid; gap: 1.25rem; max-width: var(--measure); }
.article header { display: grid; gap: 0.5rem; margin-bottom: 0.5rem; }
.article h2 { margin-top: 1rem; }
.article ul, .article ol { margin: 0; padding-left: 1.3rem; }
.article figure { margin: 0; display: grid; gap: 0.4rem; }
.article figcaption { font-size: 0.85rem; color: var(--muted); }
.article blockquote { margin: 0; padding-left: 1rem; border-left: 3px solid var(--accent); color: var(--muted); }
.callout { border: 1px solid var(--line); border-left: 3px solid var(--accent); background: var(--bg-2); padding: 0.9rem 1rem; border-radius: var(--radius); }

/* Footer */
footer.foot {
  border-top: 1px solid var(--line); padding-block: 1.5rem 2.5rem; color: var(--muted); font-size: 0.9rem;
  display: grid; gap: 0.75rem;
}
footer.foot .shortcuts { font-family: var(--mono); font-size: 0.8rem; }

@media (max-width: 480px) {
  .posts li { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; gap: 0.15rem 0; }
  .kv dt { padding-top: 0.5rem; }
  .result dl { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: no-preference) {
  .btn, .nav a, .theme-btn { transition: color 120ms ease, background-color 120ms ease, border-color 120ms ease; }
}