/* keepwhatworks.com — shared stylesheet
 * Palette + typography matched to trinity-local's design_system.py so the
 * site visually descends from the launchpad. Iowan Old Style serif for
 * headlines, SF Pro Text for body, JetBrains Mono for code/inline.
 */

:root {
  --bg-base: #f5efe3;
  --bg-wash: #ece4d6;
  --surface: #fbf8f2;
  --surface-muted: #f1eadf;
  --border: #d7ccb9;
  --text-primary: #1f1a17;
  --text-secondary: #5f554d;
  --text-muted: #86796d;
  --action-primary: #255847;
  --action-primary-hover: #1d4638;
  --action-text: #f7f3ea;
  --success: #2d6a4f;
  --warning: #b26a1f;
  --danger: #a33c2f;
  --info: #315c85;

  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --sans: "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Cascadia Code", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}

.container.wide { max-width: 960px; }

/* — Topbar — */
.topbar {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.topbar a.brand {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.topbar a.brand::before {
  /* Terminal-prompt mark. The mono `>` signals "lives in your shell"
     — Trinity Local installs via curl-bash, runs as an MCP server
     inside Claude Code, Codex, Gemini CLI. The prompt arrow frames
     the wordmark as a callable command. Sage from --action-primary. */
  content: ">";
  color: var(--action-primary);
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  margin-right: 10px;
  vertical-align: -1px;
}
.topbar nav { display: flex; gap: 28px; }
.topbar nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.02em;
}
.topbar nav a:hover { color: var(--text-primary); }

/* — Hero — */
.hero {
  padding: 80px 0 56px;
}
.hero .eyebrow {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--action-primary);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(40px, 6.5vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.hero h1 em {
  font-style: italic;
  color: var(--action-primary);
}
.hero .sub {
  font-size: 19px;
  line-height: 1.5;
  color: var(--text-secondary);
  max-width: 580px;
}

/* — Section headers — */
.section-eyebrow {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--action-primary);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title {
  font-family: var(--serif);
  font-size: 28px;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.section-sub {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 560px;
}

section { padding: 56px 0; }
section + section { border-top: 1px solid var(--border); }

/* — Article cards — */
.articles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 30px;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: transform .15s ease, border-color .15s ease;
}
.article-card:hover {
  transform: translateY(-2px);
  border-color: var(--action-primary);
}
.article-card .meta {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.article-card h3 {
  font-family: var(--serif);
  font-size: 26px;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.article-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.5;
}

/* — Product card (Trinity) — */
.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  position: relative;
}
.product-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  border-radius: 16px 0 0 16px;
  background: var(--action-primary);
}
.product-card .eyebrow {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--action-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.product-card h2 {
  font-family: var(--serif);
  font-size: 36px;
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}
.product-card .tagline {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 22px;
}
.product-card .install {
  background: var(--bg-wash);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 13px;
  padding: 14px 18px;
  margin-bottom: 18px;
  overflow-x: auto;
  user-select: all;
}
.product-card .features {
  list-style: none;
  margin: 22px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 28px;
}
.product-card .features li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 22px;
  position: relative;
}
.product-card .features li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--action-primary);
  font-weight: 600;
}
.btn {
  display: inline-block;
  background: var(--action-primary);
  color: var(--action-text);
  font-family: var(--sans);
  font-size: 14px;
  padding: 12px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: background .15s ease;
}
.btn:hover { background: var(--action-primary-hover); }
.btn.ghost {
  background: transparent;
  color: var(--action-primary);
  border: 1px solid var(--action-primary);
  margin-left: 10px;
}

/* — Article (long-form) — */
article.essay {
  max-width: 680px;
  margin: 0 auto;
}
article.essay header {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}
article.essay figure.hero {
  /* Full-bleed: break out of the .container's 720px max-width and span
     the full viewport. The .container has padding:64px 24px so we use
     left:50% + margin-left:-50vw to escape both. */
  position: relative;
  width: 100vw;
  left: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  margin-top: 0;
  margin-bottom: 48px;
  padding: 0;
}
article.essay figure.hero img {
  display: block;
  width: 100%;
  height: auto;
  /* Edge-to-edge — no border-radius, cleaner magazine-cover read. */
}
article.essay header .meta {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 16px;
}
article.essay header h1 {
  font-family: var(--serif);
  font-size: clamp(36px, 5.5vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
article.essay header .dek {
  font-size: 18px;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.5;
}
article.essay h2 {
  font-family: var(--serif);
  font-size: 28px;
  margin: 48px 0 16px;
  letter-spacing: -0.01em;
}
article.essay h3 {
  font-family: var(--serif);
  font-size: 22px;
  margin: 36px 0 12px;
}
article.essay p {
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 18px;
  color: var(--text-primary);
}
article.essay p em { color: var(--text-secondary); }
article.essay blockquote {
  border-left: 3px solid var(--action-primary);
  padding: 6px 0 6px 20px;
  margin: 28px 0;
  color: var(--text-secondary);
  font-style: italic;
  font-size: 18px;
}
article.essay ul, article.essay ol {
  margin: 8px 0 22px 26px;
}
article.essay li {
  font-size: 17px;
  line-height: 1.65;
  margin-bottom: 10px;
}
article.essay hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

/* — Trinity callout inside articles — */
.trinity-callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--action-primary);
  border-radius: 8px;
  padding: 24px 28px;
  margin: 40px 0;
}
.trinity-callout .eyebrow {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--action-primary);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.trinity-callout h4 {
  font-family: var(--serif);
  font-size: 20px;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.trinity-callout p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 12px;
}
.trinity-callout a {
  color: var(--action-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
}
.trinity-callout a:hover { text-decoration: underline; }

/* — Footer — */
footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 24px 56px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-muted);
  font-size: 13px;
}
footer a { color: var(--text-secondary); text-decoration: none; }
footer a:hover { color: var(--text-primary); }

/* — Responsive — */
@media (max-width: 640px) {
  .container { padding: 32px 18px 64px; }
  .topbar { padding: 24px 18px 0; }
  .topbar nav { gap: 18px; }
  .product-card { padding: 28px 22px; }
  .product-card .features { grid-template-columns: 1fr; }
}