/* ==========================================================================
   doof.quest — style.css
   Terminal theme. Dark by default; light via system setting or toggle.
   Theme rules: html[data-theme="light"|"dark"] (set by main.js) wins;
   with no attribute, the system preference decides.
   ========================================================================== */

/* ---------- Fonts (self-hosted, see /fonts) ---------- */
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/JetBrainsMono-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/JetBrainsMono-Bold.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("../fonts/IBMPlexSans-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  /* dark (default) — matches wireframe */
  --bg:          #17121f;
  --bg-raised:   #1e1829;
  --text:        #e9e3f2;
  --text-muted:  #a99dbd;
  --heading:     #f3eefa;
  --accent:      #c9a8ff;
  --accent-hover:#e4d4ff;
  --on-accent:   #17121f;
  --border:      #5b4a80;
  --border-soft: #3a2f52;

  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-sans: "IBM Plex Sans", system-ui, -apple-system, sans-serif;

  --max-w: 1040px;
  --gutter: 24px;
  --space-section: 80px;
  --radius: 0;           /* terminal: square corners */

  color-scheme: dark;
}

/* light palette, reused by both selectors below */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg:          #f7f4fb;
    --bg-raised:   #ffffff;
    --text:        #2a2235;
    --text-muted:  #645878;
    --heading:     #17121f;
    --accent:      #6b3fc4;
    --accent-hover:#4e2a99;
    --on-accent:   #ffffff;
    --border:      #b9a9d6;
    --border-soft: #ddd3ee;
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg:          #f7f4fb;
  --bg-raised:   #ffffff;
  --text:        #2a2235;
  --text-muted:  #645878;
  --heading:     #17121f;
  --accent:      #6b3fc4;
  --accent-hover:#4e2a99;
  --on-accent:   #ffffff;
  --border:      #b9a9d6;
  --border-soft: #ddd3ee;
  color-scheme: light;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
[hidden] { display: none !important; }

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  padding-bottom: 40px;          /* room for fixed status bar */
}

img, svg { display: block; max-width: 100%; height: auto; }

h1, h2, h3 {
  color: var(--heading);
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.2;
}
h1 { font-size: clamp(28px, 5vw, 40px); }
h2 { font-size: 26px; }
h3 { font-size: 19px; }

p + p { margin-top: 1em; }

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-hover); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

code, pre, kbd, .mono { font-family: var(--font-mono); }
code { font-size: 0.9em; }
pre {
  background: var(--bg-raised);
  border: 1px solid var(--border-soft);
  padding: 16px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.5;
}

.muted { color: var(--text-muted); }
.small { font-size: 13px; }

.skip-link {
  position: absolute; left: -9999px; top: 8px;
  background: var(--accent); color: var(--on-accent);
  padding: 6px 12px; font-family: var(--font-mono);
}
.skip-link:focus { left: 8px; z-index: 100; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { margin-top: var(--space-section); }
.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; margin-bottom: 24px;
}
.section-head a { font-family: var(--font-mono); font-size: 14px; }

/* ---------- Header ---------- */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px 24px;
  padding-block: 20px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
}
.site-header .prompt {
  color: var(--accent); font-weight: 700; text-decoration: none; font-size: 16px;
}
.site-nav { display: flex; flex-wrap: wrap; gap: 8px 24px; align-items: center; }
.site-nav a { font-size: 14px; }
.site-nav a[aria-current="page"] { color: var(--heading); }

.theme-toggle {
  font: inherit; font-size: 13px;
  background: none; color: var(--accent);
  border: 1px solid var(--border); padding: 2px 10px; cursor: pointer;
}
.theme-toggle:hover { color: var(--accent-hover); border-color: var(--accent); }

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 2fr 1fr;
  column-gap: 40px;
  align-items: start;
  margin-top: 70px;
}
.hero > div { grid-column: 1; }
.hero-figure { grid-column: 2; grid-row: 2; margin-top: 38px !important; }
.motd {
  border: 1px dashed var(--border);
  padding: 12px 16px;
  font-family: var(--font-mono); font-size: 13px;
  margin-bottom: 20px;
}
.cmd { font-family: var(--font-mono); font-size: 15px; color: var(--accent); }
.cmd::before { content: "$ "; }
.hero h1 { margin-top: 16px; }
.hero .tagline { font-family: var(--font-mono); font-size: 20px; color: var(--accent); margin-top: 8px; max-width: 34em; }
.hero .lead { font-size: 18px; margin-top: 20px; max-width: 38em; }
.hero-figure {
  margin: 0;
  display: grid; place-items: center; gap: .5rem;
  font-family: var(--font-mono); font-size: 13px;
}
.hero-figure svg { max-width: 420px; }
.hero-figure .d-text { font-size: 14px; }
.hero-diagram-link { display: block; width: 100%; text-decoration: none; }

/* blinking cursor */
.cur {
  display: inline-block; width: 0.6em; height: 1em;
  background: var(--accent);
  vertical-align: -0.15em; margin-left: 4px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Buttons ---------- */
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.btn {
  display: inline-block;
  font-family: var(--font-mono); font-size: 16px;
  padding: 10px 20px;
  text-decoration: none;
  border: 2px solid var(--border);
  color: var(--accent);
}
.btn::before { content: "[ "; }
.btn::after  { content: " ]"; }
.btn--primary { font-weight: 700; }
.btn--ghost { border-style: dashed; border-width: 1px; }
.btn:hover { border-color: var(--accent); color: var(--accent-hover); }

/* ---------- Stack grid ---------- */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.stack-item { border: 1px solid var(--border); padding: 16px 20px; }
.stack-item .label { font-family: var(--font-mono); font-size: 12px; }
.stack-item .value { margin-top: 4px; }

/* ---------- Filter tabs ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; list-style: none; padding: 0; }
.tab {
  font-family: var(--font-mono); font-size: 14px;
  padding: 4px 14px;
  border: 1px solid var(--border);
  color: var(--accent); background: none;
  text-decoration: none; cursor: pointer;
}
.tab:hover { border-color: var(--accent); }
.tab.is-active, .tab[aria-pressed="true"] {
  background: var(--accent); color: var(--on-accent);
  border-color: var(--accent); font-weight: 700;
}

/* ---------- Project cards (generated by build.js) ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.card {
  border: 1px solid var(--border);
  display: flex; flex-direction: column;
}
.card:hover { border-color: var(--accent); }
.card[hidden] { display: none; }
.card-media {
  aspect-ratio: 2 / 1;
  border-bottom: 1px dashed var(--border);
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 13px;
  overflow: hidden;
}
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-media--svg { padding: 12px; }
.card-media--svg svg { width: 100%; height: 100%; }
.card-media--svg .d-text, .card-media--svg .d-label { font-size: 14px; }
.card-body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-meta, .card-stack { font-family: var(--font-mono); font-size: 12px; }
.card-meta { color: var(--text); }
.card-stack { color: var(--text-muted); }
.card h3 a { color: inherit; text-decoration: none; }
.card h3 a:hover { color: var(--accent); }
.card-link { font-family: var(--font-mono); font-size: 14px; margin-top: auto; }

/* ---------- Notes list (generated by build.js) ---------- */
.note-list { list-style: none; padding: 0; border-top: 1px solid var(--border); }
.note-list li {
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: 4px 16px;
  padding-block: 14px;
  border-bottom: 1px solid var(--border);
}
.note-list a { text-decoration: none; }
.note-list a:hover { text-decoration: underline; }
.note-list .pinned::before { content: "★ "; }
.note-list .note-meta { font-family: var(--font-mono); font-size: 12px; color: var(--accent); }

/* ---------- About + certs ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.split h2 { margin-bottom: 16px; }
.cert-list { list-style: none; padding: 0; display: grid; gap: 12px; margin-top: 16px; }
.cert-list li {
  border: 1px dashed var(--border);
  padding: 12px 16px;
  font-family: var(--font-mono); font-size: 14px;
}
.cert-list li::before { content: "[ ] "; }
.cert-list li.done::before { content: "[x] "; }

/* ---------- Article (project + note pages) ---------- */
.prose { max-width: 70ch; }
.prose h2 { margin-top: 48px; margin-bottom: 12px; font-size: 22px; }
.prose h3 { margin-top: 32px; margin-bottom: 8px; }
.prose ul, .prose ol { padding-left: 1.4em; margin-block: 1em; }
.prose pre, .prose figure { margin-block: 1.5em; }
.prose figcaption { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); margin-top: 8px; }
.page-head { margin-top: 56px; }
.page-head .card-meta { margin-bottom: 8px; }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: var(--space-section);
  padding-block: 24px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px 24px;
  font-family: var(--font-mono); font-size: 14px;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }

/* ---------- Status bar (tmux-style) ---------- */
.statusbar {
  position: fixed; left: 0; right: 0; bottom: 0;
  display: flex; justify-content: space-between; gap: 16px;
  padding: 6px var(--gutter);
  background: var(--accent); color: var(--on-accent);
  font-family: var(--font-mono); font-size: 12px;
  white-space: nowrap; overflow: hidden;
}
.statusbar a { color: inherit; text-decoration: none; }
.statusbar .theme-toggle { color: inherit; border-color: currentColor; padding: 0 8px; font-size: 12px; }
.statusbar .theme-toggle:hover { color: inherit; border-color: currentColor; text-decoration: underline; }
.statusbar a:hover, .statusbar a[aria-current="page"] { text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  :root { --gutter: 16px; --space-section: 56px; }
  .hero { grid-template-columns: 1fr; margin-top: 40px; }
  .hero-figure { grid-column: 1; grid-row: auto; margin-top: 24px !important; }
  .split { grid-template-columns: 1fr; }
  .statusbar .status-stats { display: none; }
  .statusbar .status-left a:not([aria-current]) { display: none; }
}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .cur { animation: none; }
  * { scroll-behavior: auto !important; }
}

/* ---------- Project / note pages ---------- */
.crumbs { color: var(--text-muted); margin-bottom: 12px; }
.page-head h1 { margin-top: 6px; }
.page-head .lead { font-size: 18px; margin-top: 16px; max-width: 42em; }
.tag-row { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tag-row li { border: 1px solid var(--border); padding: 2px 10px; color: var(--text-muted); }
.prose h2 { font-size: 18px; color: var(--accent); }
.prose li + li { margin-top: 6px; }
.prose table { width: 100%; border-collapse: collapse; margin-block: 1.5em; font-size: 15px; }
.prose th, .prose td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.prose th { font-family: var(--font-mono); font-size: 12px; font-weight: 400; color: var(--text-muted); border-bottom-color: var(--border); }
.prose :not(pre) > code { background: var(--bg-raised); border: 1px solid var(--border-soft); padding: 0 4px; }
@media (max-width: 760px) { .prose table { display: block; overflow-x: auto; } }

/* ---------- Diagram (inline SVG, follows theme) ---------- */
.diagram { margin-block: 1.5em; }
.diagram svg { width: 100%; height: auto; }
.d-zone  { fill: none; stroke: var(--border); stroke-dasharray: 4 4; }
.d-host  { stroke: var(--accent); stroke-dasharray: none; }
.d-node  { fill: var(--bg-raised); stroke: var(--border); }
.d-accent{ stroke: var(--accent); }
.d-line  { stroke: var(--accent); stroke-width: 1.5; fill: none; }
.d-dash  { stroke-dasharray: 5 4; }
.d-wall  { stroke: var(--text-muted); stroke-width: 2; stroke-dasharray: 2 6; }
.d-label { fill: var(--accent); font-family: var(--font-mono); font-size: 12px; }
.d-text  { fill: var(--heading); font-family: var(--font-mono); font-size: 13px; }
.d-tint  { fill: var(--accent); fill-opacity: .06; }
.d-bar   { fill: var(--accent); fill-opacity: .12; }
.d-dot   { fill: var(--text-muted); opacity: .6; }
.d-ok    { fill: #3fbf74; }
.d-planned { stroke-dasharray: 4 3; }
.d-flow  { animation: d-flow 1.2s linear infinite; }
.d-pulse { animation: d-pulse 2.4s ease-in-out infinite; }
@keyframes d-flow  { to { stroke-dashoffset: -18; } }
@keyframes d-pulse { 50% { opacity: .3; } }
@media (prefers-reduced-motion: reduce) { .d-flow, .d-pulse { animation: none; } }
.d-sub   { fill: var(--text-muted); font-family: var(--font-mono); font-size: 10.5px; }

.mt-section { margin-top: 40px; }