/* ==========================================================================
   SelfEdge base stylesheet — structure only. All visual identity comes from
   theme variables (public/css/theme.css, copied from themes/<choice>.css).

   Properties of this file, by design:
     - consumes ONLY var(--…) for anything visual, with neutral fallbacks so
       a missing/broken theme still renders a readable page (fail-safe)
     - zero url(), zero @import, zero fonts fetched, zero external requests
       -> style-src 'self' stays airtight and nothing phones anywhere
     - accessibility: visible focus rings, reduced-motion respected,
       WCAG-minded contrast left to themes (validated separately)
   ========================================================================== */

/* Neutral fallbacks — used only if the theme failed to load. */
:root {
  --bg: #ffffff; --bg-raised: #f5f5f5; --text: #111111; --text-muted: #555555;
  --accent: #333333; --accent-contrast: #ffffff; --link: #0645ad; --link-hover: #0b0080;
  --border: #dddddd; --focus: #333333; --ok: #1a7f37; --warn: #9a6700; --danger: #cf222e;
  --font-body: system-ui, sans-serif; --font-heading: system-ui, sans-serif;
  --font-mono: ui-monospace, monospace; --radius: 4px; --max-width: 46rem;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  font-size: 1.0625rem;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

/* ---- layout ---- */
.wrap { width: min(var(--max-width), 100% - 2.5rem); margin-inline: auto; }
main { flex: 1; padding-block: 2.5rem 4rem; }

/* ---- header / nav ---- */
header.site {
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised);
  padding-block: 1.25rem;
}
header.site .name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}
header.site .name { display: inline-flex; align-items: center; gap: .55rem; }
header.site .name img.logo { width: 3rem; height: 3rem; flex: none; }
header.site .tagline { color: var(--text-muted); font-size: .95rem; margin-top: .15rem; }
nav.site { margin-top: .85rem; display: flex; flex-wrap: wrap; gap: 1.1rem; }
nav.site a {
  color: var(--link); text-decoration: none;
  font-family: var(--font-heading); font-size: .95rem;
}
nav.site a:hover { color: var(--link-hover); text-decoration: underline; }
nav.site a[aria-current="page"] { color: var(--text); border-bottom: 2px solid var(--accent); }

/* ---- article typography (markdown output renders into this) ---- */
article h1, article h2, article h3 {
  font-family: var(--font-heading); line-height: 1.25; margin: 1.6em 0 .5em;
}
article h1 { font-size: 1.9rem; margin-top: 0; }
article h2 { font-size: 1.4rem; }
article h3 { font-size: 1.15rem; }
article p, article ul, article ol { margin-block: .8em; }
article ul, article ol { padding-inline-start: 1.4em; }
article a { color: var(--link); }
article a:hover { color: var(--link-hover); }
article blockquote {
  border-inline-start: 3px solid var(--accent);
  padding: .35em 1em; margin-block: 1em; color: var(--text-muted);
  background: var(--bg-raised); border-radius: var(--radius);
}
article code {
  font-family: var(--font-mono); font-size: .92em;
  background: var(--bg-raised); border: 1px solid var(--border);
  padding: .1em .35em; border-radius: var(--radius);
}
article pre {
  background: var(--bg-raised); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1em; overflow-x: auto; margin-block: 1em;
}
article pre code { background: none; border: none; padding: 0; }
article img { max-width: 100%; height: auto; border-radius: var(--radius); }
article hr { border: none; border-top: 1px solid var(--border); margin-block: 2em; }
article table { border-collapse: collapse; width: 100%; margin-block: 1em; }
article th, article td { border: 1px solid var(--border); padding: .45em .7em; text-align: left; }
article th { background: var(--bg-raised); font-family: var(--font-heading); }

/* ---- forms (contact) ---- */
form.contact { display: grid; gap: .9rem; max-width: 34rem; margin-top: 1.5rem; }
form.contact label { font-weight: 600; font-size: .95rem; }
form.contact input, form.contact textarea {
  width: 100%; padding: .6em .7em;
  background: var(--bg-raised); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius);
  font: inherit;
}
form.contact textarea { min-height: 9em; resize: vertical; }
form.contact button {
  justify-self: start; padding: .6em 1.4em; cursor: pointer;
  background: var(--accent); color: var(--accent-contrast);
  border: none; border-radius: var(--radius);
  font-family: var(--font-heading); font-weight: 700; font-size: 1rem;
}
form.contact button:hover { filter: brightness(1.1); }
.form-note { color: var(--text-muted); font-size: .9rem; }
.form-ok { color: var(--ok); }
.form-err { color: var(--danger); }

/* Honeypot: visually removed, still in the DOM for bots to find and fill.
   (aria-hidden + tabindex are set on the element itself.) */
.hp-wrap {
  position: absolute !important;
  width: 1px; height: 1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

/* ---- footer ---- */
footer.site {
  border-top: 1px solid var(--border);
  padding-block: 1.25rem 2rem;
  color: var(--text-muted); font-size: .9rem;
}
footer.site a { color: var(--link); }
footer.site .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1.5rem; }
footer.site .theme-switch a { text-decoration: none; }
footer.site .theme-switch a:hover { text-decoration: underline; }

/* ---- focus & motion (accessibility) ---- */
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: var(--radius); }
::selection { background: var(--accent); color: var(--accent-contrast); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}