/* =====================================================
   ARTIFICE & INTELLIGENCE — site.css
   The shared stylesheet for all artificeandintelligence.org pages.
   Brand tokens locked. Do not deviate.
   v1 · May 2026
   ===================================================== */

/* ---------- TOKENS ---------- */
:root {
  /* Palette */
  --midnight: #0D0F1A;
  --surface:  #12141F;
  --surface-2:#1A1D2E;
  --gold:     #C4993B;
  --gold-soft:#E2C079;
  --gold-pale:#F0E2BD;
  --violet:   #4B3F72;
  --violet-2: #6B5CA5;

  /* Verdict colors (Oracle / Hot or Not) */
  --forest:   #2F5D50; /* HOT 8-10 */
  --copper:   #B87333; /* WARMING UP 6-7 */
  --gold-mid: #C4993B; /* LUKEWARM 4-5 */
  --blood:    #8B2E2E; /* COLD 1-3 */

  /* Text + cream */
  --cream:    #F7F3ED;
  --cream-2:  #FAF7F1;
  --cream-mute: rgba(247, 243, 237, 0.72);
  --cream-soft: rgba(247, 243, 237, 0.55);
  --cream-dim:  rgba(247, 243, 237, 0.18);

  /* Reserved (memoir + alerts) */
  --rose:     #D4727A; /* memoir only */
  --hot-red:  #E8503A; /* alerts only */

  /* Meta */
  --max-w: 1180px;
  --radius: 12px;
  --radius-sm: 6px;
}

/* ---------- RESET ---------- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }

/* ---------- BASE ---------- */
body {
  background: var(--midnight);
  color: var(--cream);
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5 {
  font-family: 'Space Mono', 'IBM Plex Mono', monospace;
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--cream);
  margin: 0 0 16px;
}
h1 { font-size: 56px; line-height: 1.05; font-weight: 900; letter-spacing: -0.02em; }
h2 { font-size: 36px; line-height: 1.15; }
h3 { font-size: 24px; line-height: 1.25; }
h4 { font-size: 18px; }

p { margin: 0 0 18px; }
em, .italic-serif {
  font-family: 'Source Serif 4', Georgia, serif;
  font-style: italic;
}

.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 12px;
}
.label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* ---------- WORDMARK ---------- */
.wordmark {
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cream);
  text-transform: uppercase;
  white-space: nowrap;
}
.wordmark .amp {
  font-family: 'Source Serif 4', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  color: var(--gold);
  margin: 0 0.18em;
  letter-spacing: 0;
}

/* ---------- LAYOUT ---------- */
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-tight { padding: 56px 0; }

/* ---------- NAV ---------- */
.nav {
  background: rgba(13, 15, 26, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid var(--cream-dim);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px;
  max-width: var(--max-w); margin: 0 auto;
}
.nav .wordmark { font-size: 13px; }
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cream-mute);
  text-decoration: none;
  transition: color 0.18s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.nav-cta {
  background: var(--gold);
  color: var(--midnight) !important;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-weight: 700;
}
.nav-cta:hover { background: var(--gold-soft); }
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-links.mobile { display: flex; }
  .nav-cta { display: inline-flex; }
}

/* ---------- HERO ---------- */
.hero {
  padding: 96px 0 88px;
  background:
    radial-gradient(ellipse at 80% 10%, rgba(196, 153, 59, 0.13), transparent 50%),
    radial-gradient(ellipse at 10% 90%, rgba(75, 63, 114, 0.20), transparent 55%),
    var(--midnight);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.97 0 0 0 0 0.95 0 0 0 0 0.93 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.6; mix-blend-mode: overlay; pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }
.hero h1 { max-width: 960px; }
.hero .lede {
  font-size: 22px; line-height: 1.5;
  color: var(--cream-mute);
  max-width: 720px; margin-top: 24px;
  font-family: 'Source Serif 4', Georgia, serif;
}

/* ---------- BUTTONS ---------- */
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 36px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: transform 0.15s ease, background 0.15s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--gold); color: var(--midnight); }
.btn-primary:hover { background: var(--gold-soft); }
.btn-ghost { border-color: var(--cream-dim); color: var(--cream); background: transparent; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-secondary { background: var(--violet); color: var(--cream); }
.btn-secondary:hover { background: var(--violet-2); }
.btn-arrow::after { content: '→'; font-family: 'Source Serif 4', serif; font-style: italic; margin-left: 4px; }

/* ---------- CARDS ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--cream-dim);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover { border-color: var(--gold); transform: translateY(-2px); }
.card .price {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 0.12em;
  margin-top: 8px;
}
.card h3 a { color: var(--cream); text-decoration: none; }
.card h3 a:hover { color: var(--gold); }

.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 22px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 20px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
}

/* ---------- PULL QUOTE ---------- */
.pullquote {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 30px;
  line-height: 1.35;
  font-style: italic;
  color: var(--cream);
  border-left: 3px solid var(--gold);
  padding: 8px 26px;
  max-width: 760px;
  margin: 32px 0;
}
.pullquote .credit {
  display: block;
  font-size: 12px;
  font-style: normal;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 16px;
}

/* ---------- FUNNEL ---------- */
.funnel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 36px 0;
}
@media (max-width: 800px) { .funnel { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .funnel { grid-template-columns: 1fr; } }
.funnel-step {
  background: var(--surface);
  border: 1px solid var(--cream-dim);
  border-top: 3px solid var(--gold);
  padding: 20px;
  border-radius: var(--radius-sm);
}
.funnel-step:nth-child(2) { border-top-color: var(--gold-soft); }
.funnel-step:nth-child(3) { border-top-color: var(--violet-2); }
.funnel-step:nth-child(4) { border-top-color: var(--violet); }
.funnel-step .label { color: var(--gold); display: block; margin-bottom: 8px; }
.funnel-step h4 { font-size: 16px; margin-bottom: 6px; }
.funnel-step .micro {
  font-size: 13px; color: var(--cream-mute);
  font-family: 'Source Serif 4', serif;
}
.funnel-step .micro b { color: var(--cream); }

/* ---------- VERDICTS / ORACLE BADGES ---------- */
.verdict {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 700;
}
.verdict-hot       { background: var(--forest); color: var(--cream); }
.verdict-warming   { background: var(--copper); color: var(--midnight); }
.verdict-lukewarm  { background: var(--gold-mid); color: var(--midnight); }
.verdict-cold      { background: var(--blood); color: var(--cream); }

/* ---------- PROOF / RECEIPTS ---------- */
.receipt {
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 20px 22px;
  border-left: 3px solid var(--gold);
  margin: 14px 0;
}
.receipt .who {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.receipt blockquote {
  font-family: 'Source Serif 4', serif;
  font-style: italic;
  font-size: 17px;
  line-height: 1.5;
  margin: 0;
  color: var(--cream);
}

/* ---------- OPERATORS BLOCK ---------- */
.operators {
  background: var(--surface);
  border: 1px solid var(--cream-dim);
  border-radius: var(--radius);
  padding: 32px;
  margin: 32px 0;
  text-align: center;
}
.operators .ops-list {
  display: flex; gap: 22px; justify-content: center; flex-wrap: wrap;
  margin: 18px 0 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cream-mute);
}
.operators .ops-list b { color: var(--gold); }

/* ---------- THE SPELL ---------- */
.spell {
  text-align: center;
  font-family: 'Source Serif 4', serif;
  font-style: italic;
  font-size: 22px;
  line-height: 1.6;
  color: var(--cream);
  padding: 56px 32px;
  border-top: 1px solid var(--cream-dim);
  border-bottom: 1px solid var(--cream-dim);
  margin: 80px 0;
  letter-spacing: 0.005em;
}
.spell .so-cast {
  display: block;
  margin-top: 14px;
  font-style: normal;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--gold);
  text-transform: uppercase;
}

/* ---------- FOOTER ---------- */
.footer {
  padding: 48px 24px 32px;
  border-top: 1px solid var(--cream-dim);
  margin-top: 48px;
  font-size: 13px;
  color: var(--cream-mute);
}
.footer-inner {
  max-width: var(--max-w); margin: 0 auto;
  display: flex; flex-wrap: wrap; gap: 32px;
  justify-content: space-between; align-items: flex-start;
}
.footer-col h5 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.footer-col a {
  display: block;
  color: var(--cream-mute);
  text-decoration: none;
  padding: 4px 0;
  font-size: 13px;
}
.footer-col a:hover { color: var(--gold); }
.footer-meta { font-size: 11px; color: var(--cream-soft); margin-top: 24px; }

/* ---------- TABLE ---------- */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 18px 0;
}
.table th {
  text-align: left;
  background: var(--surface-2);
  color: var(--gold);
  padding: 12px 14px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--cream-dim);
  color: var(--cream);
  vertical-align: top;
}
.table .price-col {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--gold);
  font-weight: 700;
}

/* ---------- NOTE BLOCKS ---------- */
.note {
  background: rgba(196, 153, 59, 0.09);
  border-left: 3px solid var(--gold);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 22px 0;
  font-size: 14px;
}
.note .label { color: var(--gold); display: block; margin-bottom: 6px; }

/* ---------- UTILITY ---------- */
.center { text-align: center; }
.muted { color: var(--cream-mute); }
.gold  { color: var(--gold); }
.mt-0 { margin-top: 0; }
.mt-s { margin-top: 14px; }
.mt-m { margin-top: 28px; }
.mt-l { margin-top: 56px; }
hr.divider {
  border: none;
  height: 1px;
  background: var(--cream-dim);
  margin: 48px 0;
}

/* ---------- FONT LOADING ---------- */
/* Loaded via Google Fonts in <head> on each page. No font @import here so pages can preconnect. */

/* ---------- ARTICLE / LAB POST ---------- */
.article-hero { padding: 88px 0 24px; }
.article-meta { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.20em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
.article-meta .dot { color: var(--cream-dim); margin: 0 10px; }
.article h1 { font-size: 44px; line-height: 1.1; max-width: 820px; }
.article-hero .lede { font-size: 21px; max-width: 780px; color: var(--cream-mute); }
.article-body { max-width: 720px; margin: 0 auto; padding: 24px 0 48px; }
.article-body h2 { font-family: 'Space Mono', monospace; font-size: 18px; letter-spacing: 0.14em; text-transform: uppercase; margin-top: 56px; margin-bottom: 16px; color: var(--gold); }
.article-body h3 { font-size: 20px; margin-top: 36px; margin-bottom: 12px; color: var(--cream); }
.article-body p { font-size: 18px; line-height: 1.72; color: var(--cream-mute); margin-bottom: 20px; }
.article-body p strong, .article-body p b { color: var(--cream); font-weight: 700; }
.article-body em { color: var(--cream); font-style: italic; }
.article-body ul, .article-body ol { color: var(--cream-mute); padding-left: 22px; line-height: 1.7; font-size: 17px; margin-bottom: 22px; }
.article-body li { margin-bottom: 10px; }
.article-body li strong { color: var(--cream); }
.article-body a { color: var(--gold); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.article-body blockquote { border-left: 3px solid var(--gold); padding: 6px 0 6px 22px; margin: 28px 0; font-family: 'Source Serif 4', serif; font-style: italic; font-size: 19px; line-height: 1.55; color: var(--cream); }
.prompt-block { background: var(--surface); border: 1px solid var(--cream-dim); border-left: 3px solid var(--gold); border-radius: var(--radius-sm); padding: 22px 24px; font-family: 'IBM Plex Mono', monospace; font-size: 13.5px; line-height: 1.7; color: var(--cream); margin: 18px 0 28px; white-space: pre-wrap; }
.prompt-label { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); margin: 26px 0 6px; display: block; }
.signoff { margin-top: 56px; font-family: 'Source Serif 4', serif; font-style: italic; color: var(--cream-mute); font-size: 17px; }
.post-foot { border-top: 1px solid var(--cream-dim); margin-top: 56px; padding-top: 28px; display: flex; justify-content: space-between; gap: 22px; flex-wrap: wrap; align-items: center; font-family: 'IBM Plex Mono', monospace; font-size: 13px; }
.post-foot a { color: var(--gold); text-decoration: none; }
.post-foot a:hover { color: var(--gold-soft); }

/* memoir tint — used on the Cleverness Is a Practice post */
.article.memoir h1 { color: var(--rose); }
.article.memoir .article-meta { color: var(--rose); }
.article.memoir blockquote { border-left-color: var(--rose); }
.article.memoir .prompt-block { border-left-color: var(--rose); }

/* responsive */
@media (max-width: 720px) {
  .article h1 { font-size: 34px; }
  .article-body { padding: 16px 0 32px; }
  .article-body p { font-size: 17px; }
}