/* ==========================================================================
   poku.css — the whole Poku design system, one file.
   Replaces the inline <style> blocks in index / privacy / ai-policy / scorecard.

   Sections:
     1. Tokens
     2. Self-hosted fonts
     3. Base + layout
     4. Buttons
     5. Nav
     6. Footer
     7. Landing page components
     8. Document pages (privacy, ai-policy)
     9. Scorecard components
    10. Blog (new)
    11. Accessibility + print
   ========================================================================== */

/* ---------- 1. Tokens ---------------------------------------------------- */

:root {
  --paper:     #f3f6f3;
  --surface:   #ffffff;
  --surface-2: #eef2ef;
  --ink:       #14201c;
  --pine:      #0e6b57;
  --pine-deep: #0a5544;
  --pine-lift: #6fbfa8;   /* pine on dark bands */
  --sage:      #5e6b64;
  --line:      #dde4df;
  --line-soft: #e6ebe6;

  --pass: #2e9e6b;
  --warn: #c8861a;
  --fail: #c8472f;
  --info: #2f6f9e;

  --on-dark:       #e8efe9;
  --on-dark-muted: #b8c5bd;
  --on-dark-warm:  #f0a98f;

  --serif: "Fraunces", Georgia, serif;
  --sans:  "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;

  --radius:     14px;
  --radius-lg:  22px;
  --radius-sm:  10px;
  --ease:       cubic-bezier(.22,.61,.36,1);

  /* Aliases — the scorecard's original variable names, so its existing markup
     and JS keep working unchanged. Delete this block once the scorecard markup
     has been migrated to the pine/ink/sage/line vocabulary. */
  --bg:          var(--paper);
  --panel:       var(--surface);
  --panel-2:     var(--surface-2);
  --text:        var(--ink);
  --muted:       var(--sage);
  --accent:      var(--pine);
  --border:      var(--line);
  --border-soft: var(--line-soft);
}

/* ---------- 2. Self-hosted fonts ---------------------------------------- */
/* WOFF2 files live in /fonts/. No third-party font requests anywhere on the
   site — this is what the privacy notice promises, so keep it that way. */

@font-face {
  font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400;
  font-display: swap; src: url("/fonts/IBMPlexSans-Regular.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600;
  font-display: swap; src: url("/fonts/IBMPlexSans-SemiBold.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans"; font-style: normal; font-weight: 700;
  font-display: swap; src: url("/fonts/IBMPlexSans-Bold.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400;
  font-display: swap; src: url("/fonts/IBMPlexMono-Regular.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 600;
  font-display: swap; src: url("/fonts/IBMPlexMono-SemiBold.woff2") format("woff2");
}
/* Variable font. Plain format("woff2") is correct — the older
   format("woff2-variations") keyword is dropped in current browsers, and an
   unrecognised format makes the browser skip the src entirely and fall back to
   Georgia with no console error. */
@font-face {
  font-family: "Fraunces"; font-style: normal; font-weight: 400 600;
  font-display: swap; src: url("/fonts/Fraunces-Variable.woff2") format("woff2");
}

/* ---------- 3. Base + layout -------------------------------------------- */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--pine); }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -.01em;
  margin: 0;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 1.5rem; }

/* Reading-width pages: privacy, ai-policy, scorecard, blog posts.
   Add class="doc" to <body>. Nav and footer stay full width. */
body.doc .wrap                { max-width: 760px; }
body.doc nav .wrap,
body.doc footer .wrap         { max-width: 1080px; }

.eyebrow {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--pine);
  margin: 0 0 .9rem;
}

.lede { font-size: 1.12rem; color: var(--sage); max-width: 60ch; }

.updated {
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--sage);
  margin: 0 0 2.4rem;
}

/* ---------- 4. Buttons --------------------------------------------------- */

.btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: .98rem;
  padding: .8rem 1.4rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: filter .15s ease, background .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--pine); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--pine); color: var(--pine); }
.btn:disabled { opacity: .55; cursor: default; filter: none; }

/* ---------- 5. Nav ------------------------------------------------------- */

nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(243, 246, 243, .85);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
nav .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  font-family: var(--serif); font-weight: 600; font-size: 1.3rem;
  letter-spacing: -.01em; text-decoration: none; color: var(--ink);
}
.brand span { color: var(--pine); }
.nav-links { display: flex; gap: 1.6rem; align-items: center; }
.nav-links a { color: var(--sage); text-decoration: none; font-size: .92rem; }
.nav-links a:hover { color: var(--ink); }
.nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links .btn { color: #fff; }
@media (max-width: 760px) {
  .nav-links a:not(.btn) { display: none; }
  .nav-links a { font-size: .85rem; }
}

/* ---------- 6. Footer ---------------------------------------------------- */

footer {
  border-top: 1px solid var(--line);
  padding: 2.2rem 0;
  margin-top: 3rem;
  color: var(--sage);
  font-size: .85rem;
}
footer .wrap { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
footer a { color: var(--sage); }
.foot-links { display: flex; gap: 1.1rem; flex-wrap: wrap; }

/* ---------- 7. Landing page components ----------------------------------- */

.hero { padding: 4.5rem 0 3.5rem; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: center; }
.hero h1 { font-size: clamp(2.1rem, 4.5vw, 3.3rem); }
.hero p.lede { margin: 1.2rem 0 1.9rem; max-width: 46ch; }
.hero .cta-row { display: flex; gap: .8rem; flex-wrap: wrap; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; gap: 2.2rem; } }

.grade-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.4rem;
  box-shadow: 0 12px 30px -18px rgba(20, 32, 28, .4);
}
.grade-top { display: flex; align-items: center; gap: 1.1rem; padding-bottom: 1.1rem; border-bottom: 1px solid var(--line); }
.grade-badge {
  width: 76px; height: 76px; flex: none; border-radius: 12px; background: var(--warn);
  color: #fff; font-family: var(--mono); font-weight: 600; font-size: 2.6rem;
  display: grid; place-items: center;
}
.grade-top .meta .t { font-family: var(--mono); font-size: .76rem; color: var(--sage); }
.grade-top .meta .u { font-family: var(--mono); font-size: .9rem; color: var(--ink); word-break: break-all; }
.grade-row { display: flex; align-items: center; gap: .7rem; padding: .55rem 0; font-size: .92rem; }
.grade-row:not(:last-child) { border-bottom: 1px dashed var(--line); }
.grade-row .s { margin-left: auto; font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--sage); }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.dot.pass { background: var(--pass); }
.dot.warn { background: var(--warn); }
.dot.fail { background: var(--fail); }

section { padding: 3.4rem 0; }
.section-head { max-width: 50ch; margin-bottom: 2.2rem; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.section-head p { color: var(--sage); margin: .7rem 0 0; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.step .n { font-family: var(--mono); font-size: .8rem; color: var(--pine); font-weight: 600; }
.step h3 { font-size: 1.25rem; margin: .5rem 0; }
.step p { color: var(--sage); font-size: .95rem; margin: 0; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.svc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.svc .tag { font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--pine); }
.svc h3 { font-size: 1.3rem; margin: .4rem 0 .5rem; }
.svc p { color: var(--sage); font-size: .95rem; margin: 0 0 .8rem; }
.svc .price { font-family: var(--mono); font-size: .92rem; color: var(--ink); }
.svc.featured { border-color: var(--pine); border-width: 1.5px; box-shadow: 0 12px 30px -20px rgba(14, 107, 87, .55); position: relative; }
.svc.featured .tag { background: var(--pine); color: #fff; padding: .18rem .5rem; border-radius: 999px; }
@media (max-width: 860px) { .services { grid-template-columns: 1fr; } }

.promise {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.3rem; margin-top: 1.4rem; display: flex; gap: .7rem; align-items: flex-start;
}
.promise .mk { color: var(--pine); font-weight: 700; flex: none; }
.promise p { margin: 0; font-size: .95rem; color: var(--ink); }
.promise p strong { font-weight: 600; }
.services-note { color: var(--sage); font-size: .92rem; margin: 1rem 0 0; }

.band { background: var(--ink); color: var(--on-dark); border-radius: var(--radius-lg); padding: 3rem; }
.band h2 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.2rem); max-width: 24ch; }
.band p.intro { color: #aebbb2; margin: .8rem 0 1.8rem; max-width: 52ch; }
.gaps { display: grid; grid-template-columns: repeat(2, 1fr); gap: .9rem 2rem; margin: 0; padding: 0; list-style: none; }
.gaps li { display: flex; gap: .7rem; align-items: flex-start; font-size: .98rem; }
.gaps .mk { font-family: var(--mono); color: var(--on-dark-warm); flex: none; }
@media (max-width: 680px) { .band { padding: 2rem; } .gaps { grid-template-columns: 1fr; } }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.4rem; align-items: start; }
.about p { color: var(--sage); }
.about p strong { color: var(--ink); font-weight: 600; }
.creds { list-style: none; margin: 1rem 0 0; padding: 0; }
.creds li {
  font-family: var(--mono); font-size: .82rem; padding: .42rem 0;
  border-bottom: 1px solid var(--line); display: flex; gap: .6rem; color: var(--sage);
}
.creds li::before { content: "\2713"; color: var(--sage); }
.creds-head { font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--sage); margin: 1.6rem 0 0; }

.quote {
  background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--pine);
  border-radius: var(--radius); padding: 1.2rem 1.3rem; margin: 0 0 1.3rem;
}
.quote p { font-family: var(--serif); font-size: 1.1rem; line-height: 1.4; color: var(--ink); margin: 0 0 .7rem; }
.quote .who { font-family: var(--mono); font-size: .76rem; color: var(--sage); }

.trust { list-style: none; margin: 0; padding: 0; }
.trust li {
  font-size: .96rem; padding: .55rem 0; border-bottom: 1px solid var(--line);
  display: flex; gap: .65rem; align-items: flex-start; color: var(--ink);
}
.trust li::before { content: "\2713"; color: var(--pine); font-weight: 600; flex: none; }
@media (max-width: 760px) { .about-grid { grid-template-columns: 1fr; gap: 1.4rem; } }

.final { text-align: center; }
.final h2 { font-size: clamp(1.8rem, 3.4vw, 2.4rem); max-width: 20ch; margin: 0 auto 1.4rem; }
.final .cta-row { display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; }

/* ---------- Newsletter band (landing + blog posts) ----------------------- */

#newsletter { padding-top: 1rem; }
.nl-band { background: var(--ink); color: var(--on-dark); border-radius: var(--radius-lg); padding: 2.6rem; }
.nl-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 2.2rem; align-items: center; }
.nl-band .eyebrow { color: var(--pine-lift); }
.nl-band h2 { color: #fff; font-size: clamp(1.5rem, 2.6vw, 2rem); max-width: 18ch; }
.nl-lede { color: var(--on-dark-muted); margin: .85rem 0 0; font-size: .98rem; max-width: 46ch; }
.nl-row { display: flex; gap: .6rem; flex-wrap: wrap; }
.nl-row input {
  flex: 1; min-width: 0; background: #fff; border: 1px solid var(--line); color: var(--ink);
  font-family: var(--mono); font-size: .9rem; padding: .75rem .85rem; border-radius: var(--radius-sm);
}
.nl-row input:focus { outline: 2px solid var(--pine); outline-offset: 1px; }
.nl-row .btn { white-space: nowrap; cursor: pointer; }
.nl-consent {
  display: flex; gap: .55rem; align-items: flex-start; margin-top: .9rem;
  font-size: .82rem; color: var(--on-dark-muted); line-height: 1.5;
}
.nl-consent input { margin-top: .15rem; accent-color: var(--pine); flex: none; }
.nl-consent a { color: var(--pine-lift); }
.nl-msg { font-family: var(--mono); font-size: .82rem; margin: .85rem 0 0; min-height: 1em; }
.nl-msg.ok { color: #7fd3bd; }
.nl-msg.err { color: var(--on-dark-warm); }
/* honeypot — must stay invisible and out of the tab order */
.nl-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
@media (max-width: 760px) { .nl-grid { grid-template-columns: 1fr; gap: 1.4rem; } .nl-band { padding: 1.8rem; } }

/* ---------- 8. Document pages (privacy, ai-policy) ----------------------- */

main { padding: 3rem 0 1rem; }
main h1 { font-size: clamp(2rem, 4vw, 2.6rem); margin-bottom: .5rem; }
main h2 { font-size: 1.3rem; margin: 2.4rem 0 .7rem; }
main h3 { font-size: 1.05rem; margin: 1.6rem 0 .4rem; }
main p  { margin: 0 0 1rem; }
main ul, main ol { margin: 0 0 1rem; padding-left: 1.2rem; }
main li { margin-bottom: .45rem; }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.2rem 1.4rem; margin: 1.2rem 0;
}
.card.pine { border-left: 3px solid var(--pine); }
.card p:last-child { margin-bottom: 0; }
.contact { font-family: var(--mono); font-size: .92rem; }

.tool { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.4rem; margin: 1.2rem 0; }
.tool-head { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; }
.tier {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--pine); background: var(--paper); border: 1px solid var(--line);
  border-radius: 999px; padding: .2rem .7rem; white-space: nowrap;
}
.tool dl { margin: 0; }
.tool dt { font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--sage); margin-top: .6rem; }
.tool dd { margin: .15rem 0 0; }
.tool dd:last-child { margin-bottom: 0; }

.dates { font-family: var(--mono); font-size: .82rem; color: var(--sage); border-top: 1px solid var(--line); padding-top: 1rem; margin-top: 2.4rem; }
.ai-note { font-family: var(--mono); font-size: .8rem; color: var(--sage); margin-top: 1.4rem; }

/* ---------- 9. Scorecard components -------------------------------------- */

.optin {
  margin-top: 1.8rem; background: var(--surface-2); border: 1px solid var(--line);
  border-radius: 12px; padding: 1.3rem 1.4rem;
}
.optin h3 { font-family: var(--serif); font-weight: 500; font-size: 1.1rem; margin: 0 0 .4rem; }
.optin .optin-lede { color: var(--sage); font-size: .9rem; margin: 0 0 1rem; max-width: 60ch; line-height: 1.55; }
.optin .optin-lede b { color: var(--ink); font-weight: 600; }
.optin-row { display: flex; gap: .6rem; flex-wrap: wrap; }
.optin-row input {
  flex: 1; min-width: 0; background: var(--surface); border: 1px solid var(--line);
  color: var(--ink); font-family: var(--mono); font-size: .9rem; padding: .7rem .8rem; border-radius: 8px;
}
.optin-row input:focus { outline: 2px solid var(--pine); outline-offset: 1px; border-color: var(--pine); }
.optin-row button {
  background: var(--pine); color: #fff; border: 0; font-family: var(--sans);
  font-weight: 600; padding: .7rem 1.2rem; border-radius: 8px; cursor: pointer; white-space: nowrap;
}
.optin-row button:disabled { opacity: .55; cursor: default; }
.optin-consent {
  display: flex; gap: .55rem; align-items: flex-start; margin-top: .9rem;
  font-size: .82rem; color: var(--sage); line-height: 1.5;
}
.optin-consent input { margin-top: .15rem; accent-color: var(--pine); flex-shrink: 0; }
.optin-consent a { color: var(--pine); }
.optin-msg { font-family: var(--mono); font-size: .82rem; margin: .8rem 0 0; min-height: 1em; }
.optin-msg.ok { color: var(--pass); }
.optin-msg.err { color: var(--fail); }
.err { color: var(--fail); font-family: var(--mono); font-size: .88rem; }

/* ---------- 10. Blog ------------------------------------------------------ */

/* Index list */
.post-list { list-style: none; margin: 2.4rem 0 0; padding: 0; }
.post-list li { border-top: 1px solid var(--line); }
.post-list li:last-child { border-bottom: 1px solid var(--line); }
.post-list a { display: block; padding: 1.5rem 0; text-decoration: none; color: inherit; }
.post-list a:hover h2 { color: var(--pine); }
.post-list h2 { font-size: 1.4rem; margin: 0 0 .4rem; transition: color .15s ease; }
.post-list p { color: var(--sage); font-size: .95rem; margin: 0 0 .5rem; max-width: 62ch; }
.post-meta { font-family: var(--mono); font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--sage); }
.post-meta .cat { color: var(--pine); }
.post-meta .sep { opacity: .5; margin: 0 .5rem; }

.blog-empty { color: var(--sage); border: 1px dashed var(--line); border-radius: var(--radius); padding: 2rem; text-align: center; margin-top: 2rem; }

/* Article body */
.prose { max-width: 68ch; }
.prose h2 { font-size: 1.45rem; margin: 2.6rem 0 .7rem; }
.prose h3 { font-size: 1.12rem; margin: 1.8rem 0 .4rem; }
.prose p  { margin: 0 0 1.1rem; }
.prose ul, .prose ol { margin: 0 0 1.2rem; padding-left: 1.3rem; }
.prose li { margin-bottom: .5rem; }
.prose strong { font-weight: 600; }
.prose blockquote {
  margin: 1.6rem 0; padding: .2rem 0 .2rem 1.2rem;
  border-left: 3px solid var(--pine); color: var(--sage);
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose code {
  font-family: var(--mono); font-size: .88em; background: var(--surface-2);
  border: 1px solid var(--line-soft); border-radius: 5px; padding: .1em .35em;
}
.prose pre {
  background: var(--ink); color: var(--on-dark); border-radius: var(--radius);
  padding: 1.1rem 1.2rem; overflow-x: auto; font-size: .86rem; line-height: 1.55; margin: 1.4rem 0;
}
.prose pre code { background: none; border: 0; padding: 0; color: inherit; font-size: inherit; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.4rem 0; font-size: .94rem; }
.prose th, .prose td { text-align: left; padding: .6rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { font-family: var(--mono); font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--sage); font-weight: 600; }
.prose img { max-width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--line); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4rem 0; }

/* Sources block — evidence discipline made visible */
.sources { margin-top: 2.8rem; border-top: 1px solid var(--line); padding-top: 1.4rem; }
.sources h2 { font-family: var(--mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--sage); margin: 0 0 .8rem; }
.sources ol { font-size: .9rem; color: var(--sage); padding-left: 1.2rem; margin: 0; }
.sources li { margin-bottom: .4rem; }

/* Per-post CTA */
.cta-block {
  background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--pine);
  border-radius: var(--radius); padding: 1.6rem 1.7rem; margin: 3rem 0 0;
}
.cta-block .eyebrow { margin-bottom: .5rem; }
.cta-block h2 { font-size: 1.3rem; margin: 0 0 .5rem; }
.cta-block p { color: var(--sage); font-size: .96rem; margin: 0 0 1.2rem; max-width: 56ch; }
.cta-block .btn { margin-right: .5rem; }

/* Back link */
.back { font-family: var(--mono); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; text-decoration: none; display: inline-block; margin-bottom: 1.6rem; }
.back:hover { text-decoration: underline; }

/* Draft banner — only ever rendered by `python3 build.py --drafts` */
.draft-flag {
  background: var(--warn); color: #fff; font-family: var(--mono); font-size: .78rem;
  letter-spacing: .08em; text-transform: uppercase; text-align: center; padding: .5rem;
}

/* ---------- 11. Accessibility + print ------------------------------------ */

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

@media print {
  nav, footer, .cta-block, .nl-band, .optin { display: none !important; }
  body { background: #fff; font-size: 12pt; }
  .prose { max-width: none; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .85em; color: #555; }
}