/* The Spetz blog (/blog/). Plain CSS on purpose: the pages are rendered by the server
   (models/concierge_qna/blog_render.py) and must read and lay out without JavaScript.
   Tokens from frontend/Spetz-Design-System.html: cream paper, navy ink, teal accent,
   sand warm note, Host Grotesk / Inter / Martian Mono, drafted corners, 4px spacing. */
:root {
  --paper: #faf6ec;
  --ink: #0b1426;
  --ink-rgb: 11, 20, 38;
  --teal: #14b8a6;
  --teal-deep: #0d9488;
  --sand: #d4a574;
  --muted: #75726a;
  --divider: #e8e5dc;
  --card: #fffdf7;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-tight: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  --font-title: "Host Grotesk", "Inter", system-ui, sans-serif;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "Martian Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, rgba(var(--ink-rgb), 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(var(--ink-rgb), 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  background-attachment: fixed;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

/* ── Header ─────────────────────────────────────────────── */
.blog-header { border-bottom: 1px solid var(--divider); background: var(--paper); }
.blog-nav {
  max-width: 1120px; margin: 0 auto; height: 64px;
  padding: 0 var(--space-md);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-md);
}
.blog-logo img { height: 26px; width: auto; }
.blog-nav-links { display: flex; align-items: center; gap: var(--space-lg); font-size: 14px; font-weight: 500; }
.blog-nav-links a { text-decoration: none; color: var(--muted); transition: color 150ms; }
.blog-nav-links a:hover { color: var(--ink); }
.blog-nav-links .blog-nav-cta {
  color: var(--paper); background: var(--ink); padding: var(--space-sm) var(--space-md);
  border-radius: 8px 2px 8px 2px; transition: background 150ms;
}
.blog-nav-links .blog-nav-cta:hover { background: var(--teal-deep); color: var(--paper); }
@media (max-width: 560px) {
  .blog-nav-links { gap: var(--space-md); }
  .blog-nav-links a[href="/about/"] { display: none; }
}

/* ── Layout ─────────────────────────────────────────────── */
.blog-main { min-height: 60vh; }
.blog-wrap { max-width: 1120px; margin: 0 auto; padding: var(--space-xl) var(--space-md) var(--space-2xl); }
.blog-narrow { max-width: 720px; margin: 0 auto; }
@media (min-width: 640px) { .blog-wrap { padding: var(--space-2xl) var(--space-xl); } }

.blog-label {
  font-family: var(--font-mono); font-weight: 600; font-size: 11px;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted);
  margin: 0 0 var(--space-sm);
}
.blog-label a { text-decoration: none; }
.blog-label a:hover { color: var(--teal-deep); }
.blog-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); margin-right: var(--space-sm); vertical-align: 1px; }

h1, h2, h3 { font-family: var(--font-title); color: var(--ink); }
.blog-hero-title {
  font-size: 40px; line-height: 1.05; letter-spacing: -0.035em; font-weight: 700;
  margin: 0 0 var(--space-tight); max-width: 18ch;
}
.blog-hero-lede { color: var(--muted); font-size: 18px; max-width: 56ch; margin: 0; }
@media (min-width: 768px) { .blog-hero-title { font-size: 56px; } }

/* ── Cards ──────────────────────────────────────────────── */
.blog-card {
  display: flex; flex-direction: column; text-decoration: none; color: var(--ink);
  background: var(--card); border: 1px solid var(--divider);
  border-radius: 16px 4px 16px 4px; overflow: hidden;
  transition: transform 400ms var(--ease), border-color 150ms;
}
.blog-card:hover { transform: translateY(-2px); border-color: rgba(var(--ink-rgb), 0.25); }
.blog-card-img { aspect-ratio: 16 / 9; background: var(--divider); overflow: hidden; }
.blog-card-img img { width: 100%; height: 100%; object-fit: cover; }
.blog-card-body { padding: var(--space-md); display: flex; flex-direction: column; gap: var(--space-sm); flex: 1; }
.blog-card-title { font-family: var(--font-title); font-weight: 700; font-size: 19px; line-height: 1.25; letter-spacing: -0.02em; margin: 0; }
.blog-card-desc { color: var(--muted); font-size: 14px; line-height: 1.5; margin: 0; }
.blog-card-meta { margin-top: auto; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }

.blog-grid { display: grid; gap: var(--space-lg); grid-template-columns: 1fr; }
@media (min-width: 640px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .blog-grid { grid-template-columns: repeat(3, 1fr); } }

/* Featured (front page lead) */
.blog-featured { text-decoration: none; color: var(--ink); display: grid; gap: var(--space-lg); grid-template-columns: 1fr; align-items: center; }
.blog-featured .blog-card-img { aspect-ratio: 3 / 2; border-radius: 16px 4px 16px 4px; }
.blog-featured-title { font-family: var(--font-title); font-size: 32px; line-height: 1.1; letter-spacing: -0.03em; font-weight: 700; margin: 0 0 var(--space-tight); }
.blog-featured:hover .blog-featured-title { color: var(--teal-deep); }
@media (min-width: 900px) { .blog-featured { grid-template-columns: 1.3fr 1fr; gap: var(--space-xl); } }

.blog-section { margin-top: var(--space-2xl); }
.blog-section-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-md); margin-bottom: var(--space-md); border-bottom: 2px solid var(--ink); padding-bottom: var(--space-sm); }
.blog-section-title { font-size: 24px; letter-spacing: -0.025em; font-weight: 700; margin: 0; }
.blog-section-blurb { color: var(--muted); font-size: 14px; margin: 0 0 var(--space-md); max-width: 60ch; }
.blog-more { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--teal-deep); text-decoration: none; white-space: nowrap; }
.blog-more:hover { color: var(--ink); }

.blog-chips { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-top: var(--space-lg); }
.blog-chip { font-size: 13px; text-decoration: none; padding: var(--space-xs) var(--space-tight); border: 1px solid var(--divider); background: var(--card); border-radius: 8px 2px 8px 2px; color: var(--ink); }
.blog-chip:hover, .blog-chip[aria-current="page"] { border-color: var(--ink); }

.blog-pager { display: flex; justify-content: space-between; margin-top: var(--space-xl); font-size: 14px; }
.blog-pager a { color: var(--teal-deep); }

/* ── Post ───────────────────────────────────────────────── */
.blog-crumbs { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--space-md); }
.blog-crumbs a { text-decoration: none; }
.blog-crumbs a:hover { color: var(--teal-deep); }
.blog-post-title { font-size: 36px; line-height: 1.08; letter-spacing: -0.035em; font-weight: 700; margin: 0 0 var(--space-tight); }
@media (min-width: 768px) { .blog-post-title { font-size: 46px; } }
.blog-post-lede { font-size: 19px; color: var(--muted); margin: 0 0 var(--space-md); }
.blog-post-meta { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--space-lg); }
.blog-post-meta a { text-decoration: none; }

.blog-figure { margin: var(--space-lg) 0; }
.blog-figure img { width: 100%; border-radius: 16px 4px 16px 4px; background: var(--divider); }
.blog-figure figcaption { font-size: 13px; color: var(--muted); margin-top: var(--space-sm); }
.blog-credit { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; margin-left: var(--space-xs); }
.blog-credit a { color: inherit; }

.blog-body { font-size: 17px; line-height: 1.7; }
.blog-body h2 { font-size: 26px; line-height: 1.2; letter-spacing: -0.025em; font-weight: 700; margin: var(--space-xl) 0 var(--space-tight); }
.blog-body h3 { font-size: 20px; line-height: 1.3; letter-spacing: -0.02em; font-weight: 600; margin: var(--space-lg) 0 var(--space-sm); }
.blog-body p { margin: 0 0 var(--space-md); }
.blog-body ul, .blog-body ol { margin: 0 0 var(--space-md); padding-left: var(--space-lg); }
.blog-body li { margin-bottom: var(--space-xs); }
.blog-body a { color: var(--teal-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.blog-body a:hover { color: var(--ink); }
.blog-body strong { font-weight: 600; }
.blog-body blockquote { margin: var(--space-lg) 0; padding: var(--space-md) var(--space-lg); background: var(--card); border-left: 4px solid var(--teal); border-radius: 0 4px 16px 0; }
.blog-body blockquote p:last-child { margin-bottom: 0; }
.blog-body code { font-family: var(--font-mono); font-size: 0.85em; background: var(--divider); padding: 1px var(--space-xs); border-radius: 4px; }
.blog-table { overflow-x: auto; margin: 0 0 var(--space-md); }
.blog-body table { border-collapse: collapse; width: 100%; font-size: 15px; background: var(--card); }
.blog-body th, .blog-body td { text-align: left; padding: var(--space-sm) var(--space-tight); border-bottom: 1px solid var(--divider); vertical-align: top; }
.blog-body th { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); font-weight: 600; }

/* Projects mentioned (design partners' live projects) */
.blog-projects { margin-top: var(--space-xl); padding-top: var(--space-lg); border-top: 2px solid var(--ink); }
.blog-projects h2 { font-size: 22px; letter-spacing: -0.02em; margin: 0 0 var(--space-md); }
.blog-project { display: grid; grid-template-columns: 120px 1fr; gap: var(--space-md); align-items: center; text-decoration: none; padding: var(--space-tight); background: var(--card); border: 1px solid var(--divider); border-radius: 16px 4px 16px 4px; margin-bottom: var(--space-tight); transition: border-color 150ms; }
.blog-project:hover { border-color: var(--ink); }
.blog-project img { width: 120px; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px 2px 8px 2px; }
.blog-project-title { font-family: var(--font-title); font-weight: 700; font-size: 17px; line-height: 1.25; margin: 0 0 var(--space-xs); }
.blog-project-by { font-size: 13px; color: var(--muted); margin: 0; }
.blog-project-go { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--teal-deep); margin-top: var(--space-xs); display: inline-block; }

.blog-cta { margin-top: var(--space-xl); padding: var(--space-lg); background: var(--ink); color: var(--paper); border-radius: 16px 4px 16px 4px; }
.blog-cta h2 { color: var(--paper); font-size: 22px; letter-spacing: -0.02em; margin: 0 0 var(--space-sm); }
.blog-cta p { margin: 0 0 var(--space-md); color: rgba(250, 246, 236, 0.8); }
.blog-cta a { display: inline-block; color: var(--ink); background: var(--teal); text-decoration: none; font-weight: 600; padding: var(--space-sm) var(--space-md); border-radius: 8px 2px 8px 2px; }
.blog-cta a:hover { background: var(--paper); }

.blog-related { margin-top: var(--space-2xl); }

.blog-empty { text-align: center; }
.blog-empty h1 { font-size: 32px; letter-spacing: -0.03em; }
.blog-empty p { color: var(--muted); }

/* ── Footer ─────────────────────────────────────────────── */
.blog-footer { border-top: 1px solid var(--divider); background: var(--paper); }
.blog-footer-grid { max-width: 1120px; margin: 0 auto; padding: var(--space-2xl) var(--space-md) var(--space-lg); display: grid; gap: var(--space-lg); grid-template-columns: 1fr 1fr; }
.blog-footer-brand { grid-column: span 2; }
.blog-footer-brand img { height: 24px; width: auto; margin-bottom: var(--space-sm); }
.blog-footer-brand p { color: var(--muted); font-size: 14px; max-width: 24ch; margin: 0; }
.blog-footer nav { display: flex; flex-direction: column; gap: var(--space-sm); font-size: 14px; }
.blog-footer nav a { color: var(--muted); text-decoration: none; }
.blog-footer nav a:hover { color: var(--ink); }
.blog-footer .blog-label { font-size: 10px; letter-spacing: 0.18em; }
.blog-copy { max-width: 1120px; margin: 0 auto; padding: 0 var(--space-md) var(--space-xl); color: var(--muted); font-family: var(--font-mono); font-size: 12px; }
@media (min-width: 640px) {
  .blog-footer-grid { grid-template-columns: repeat(4, 1fr); padding-left: var(--space-xl); padding-right: var(--space-xl); }
  .blog-footer-brand { grid-column: span 1; }
  .blog-copy { padding-left: var(--space-xl); padding-right: var(--space-xl); }
}

@media (prefers-reduced-motion: reduce) {
  .blog-card, .blog-card:hover { transition: none; transform: none; }
}