/* ============================================
   Primeloop — Design tokens
   Palette (clean corporate white / blue):
     --void     #FFFFFF  page background (white)
     --surface  #F4F7FC  raised panels / cards (soft blue-gray)
     --surface-2 #E8F0FE card accents / thumb gradients
     --paper    #10151F  main text (dark navy-charcoal on white)
     --ink      #FFFFFF  text on solid blue buttons/chips
     --signal   #2454FF  royal blue — primary accent (CTAs, links, highlights)
     --mint     #14328C  deep blue — secondary accent (tags, small indicators)
     --line     rgba(16,21,31,0.10)  hairline dividers
   Type:
     Display: 'Fraunces'      — headlines, quirky ball-terminal serif
     Body:    'Inter'         — paragraphs, UI
     Utility: 'IBM Plex Mono' — meta labels, dates, categories, ad labels
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --void: #FFFFFF;
  --surface: #F4F7FC;
  --surface-2: #E8F0FE;
  --paper: #10151F;
  --paper-dim: rgba(16,21,31,0.62);
  --ink: #FFFFFF;
  --signal: #2454FF;
  --mint: #14328C;
  --line: rgba(16,21,31,0.10);
  --line-strong: rgba(16,21,31,0.20);

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --max-w: 1180px;
  --radius: 10px;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--void);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Signature element: the Signal Trace ----------
   A dotted connection line with nodes, used as a section divider
   and as a small marker beside eyebrows/category labels — evokes
   a waveform / neural link, tying every section back to the
   "signal" idea without repeating one big hero graphic. */
.trace {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  height: 2px;
  margin: 64px 0;
}
.trace::before,
.trace::after { content: ""; flex: 1; height: 1px; background: repeating-linear-gradient(90deg, var(--line-strong) 0 6px, transparent 6px 12px); }
.trace .node { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); flex-shrink: 0; box-shadow: 0 0 0 4px rgba(36,84,255,0.16); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mint);
}
.eyebrow::before {
  content: "";
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(20,50,140,0.14);
}

/* ---------- Header / Nav ---------- */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.90);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0;
}
.logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 8px;
  color: var(--paper);
}
.logo .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--signal); }
.nav-links { display: flex; gap: 28px; font-size: 14px; font-weight: 500; }
.nav-links a { color: var(--paper-dim); transition: color .15s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--signal); }
.nav-links a:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--signal); color: var(--ink);
  font-weight: 600; font-size: 14px;
  padding: 11px 20px; border-radius: 100px;
  border: none; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(36,84,255,0.28); }
.btn-ghost {
  background: transparent; color: var(--paper); border: 1px solid var(--line-strong);
}
.btn-ghost:hover { border-color: var(--signal); color: var(--signal); box-shadow: none; transform: none; }

/* ---------- Hero ---------- */
.hero {
  padding: 76px 0 40px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 5.4vw, 64px);
  line-height: 1.04;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 18px 0 20px;
  color: var(--paper);
}
.hero h1 em { font-style: italic; color: var(--signal); }
.hero p.lede { font-size: 18px; color: var(--paper-dim); max-width: 46ch; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; align-items: center; }

.hero-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 1px 2px rgba(16,21,31,0.04);
}
.hero-panel .stat-row { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--line); font-family: var(--font-mono); font-size: 13px; color: var(--paper-dim); }
.hero-panel .stat-row:last-child { border-bottom: none; }
.hero-panel .stat-row b { color: var(--signal); font-size: 16px; font-family: var(--font-body); }

/* ---------- Section titles ---------- */
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 32px; gap: 20px; flex-wrap: wrap; }
.section-head h2 { font-family: var(--font-display); font-size: clamp(26px, 3vw, 36px); font-weight: 600; margin: 10px 0 0; letter-spacing: -0.01em; color: var(--paper); }
.section-head .see-all { font-size: 14px; font-weight: 600; color: var(--signal); white-space: nowrap; }

/* ---------- Post grid / cards ---------- */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--void);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: 0 1px 3px rgba(16,21,31,0.05);
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: 0 10px 24px rgba(16,21,31,0.08); }
.card-thumb {
  aspect-ratio: 16/10;
  background:
    radial-gradient(circle at 22% 28%, rgba(36,84,255,0.14), transparent 55%),
    radial-gradient(circle at 82% 78%, rgba(20,50,140,0.08), transparent 50%),
    radial-gradient(rgba(16,21,31,0.05) 1px, transparent 1.4px),
    linear-gradient(135deg, var(--surface-2), var(--surface));
  background-size: auto, auto, 15px 15px, auto;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.card-thumb .glyph { font-family: var(--font-display); font-size: 42px; color: rgba(36,84,255,0.30); }
.card-body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-meta { font-family: var(--font-mono); font-size: 11.5px; color: var(--paper-dim); display: flex; gap: 10px; text-transform: uppercase; letter-spacing: 0.04em; }
.card h3 { font-family: var(--font-display); font-size: 20px; font-weight: 600; line-height: 1.28; margin: 0; color: var(--paper); }
.card h3 a:hover { color: var(--signal); }
.card p { font-size: 14px; color: var(--paper-dim); margin: 0; flex: 1; }
.tag { font-family: var(--font-mono); font-size: 11px; color: var(--mint); text-transform: uppercase; letter-spacing: 0.05em; }

.featured {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px; align-items: center; margin-bottom: 48px;
}
.featured .card-thumb { border-radius: 8px; aspect-ratio: 4/3; }
.featured h3 { font-size: 28px; color: var(--paper); }

/* ---------- Ad slots ---------- */
.ad-slot {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: rgba(16,21,31,0.02);
  min-height: 100px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  color: var(--paper-dim); text-transform: uppercase;
  margin: 40px 0;
}
.ad-slot.leaderboard { min-height: 90px; }
.ad-slot.rectangle { min-height: 250px; max-width: 300px; margin: 24px auto; }
.ad-slot.in-article { min-height: 120px; }

/* ---------- Newsletter ---------- */
.newsletter {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 44px;
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  flex-wrap: wrap;
}
.newsletter h3 { font-family: var(--font-display); font-size: 26px; margin: 0 0 6px; font-weight: 600; color: var(--paper); }
.newsletter p { margin: 0; color: var(--paper-dim); font-size: 14px; }
.newsletter form { display: flex; gap: 10px; flex: 1; max-width: 420px; min-width: 260px; }
.newsletter input {
  flex: 1; background: var(--void); border: 1px solid var(--line-strong); border-radius: 100px;
  padding: 12px 18px; color: var(--paper); font-family: var(--font-body); font-size: 14px;
}
.newsletter input:focus-visible { outline: 2px solid var(--signal); }

/* ---------- Article page ---------- */
.article-head { max-width: 780px; margin: 0 auto; padding: 56px 0 24px; text-align: center; }
.article-head h1 { font-family: var(--font-display); font-size: clamp(32px, 4.5vw, 48px); line-height: 1.12; font-weight: 600; margin: 18px 0; letter-spacing: -0.01em; color: var(--paper); }
.article-meta { display: flex; gap: 18px; justify-content: center; font-family: var(--font-mono); font-size: 12.5px; color: var(--paper-dim); flex-wrap: wrap; }
.article-cover {
  max-width: 900px; margin: 0 auto 8px; aspect-ratio: 21/9; border-radius: var(--radius);
  background:
    radial-gradient(circle at 18% 30%, rgba(36,84,255,0.16), transparent 55%),
    radial-gradient(circle at 85% 75%, rgba(20,50,140,0.10), transparent 50%),
    radial-gradient(rgba(16,21,31,0.05) 1px, transparent 1.4px),
    linear-gradient(135deg, var(--surface-2), var(--surface));
  background-size: auto, auto, 18px 18px, auto;
  border: 1px solid var(--line);
}

.article-body { max-width: 700px; margin: 0 auto; padding: 32px 0 60px; }
.article-body h2 { font-family: var(--font-display); font-size: 28px; font-weight: 600; margin: 44px 0 16px; letter-spacing: -0.01em; color: var(--paper); }
.article-body h3 { font-family: var(--font-display); font-size: 21px; font-weight: 600; margin: 32px 0 12px; color: var(--paper); }
.article-body p { font-size: 17px; color: var(--paper-dim); margin: 0 0 18px; }
.article-body ul, .article-body ol { color: var(--paper-dim); font-size: 17px; padding-left: 22px; margin-bottom: 18px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 3px solid var(--signal); margin: 28px 0; padding: 4px 0 4px 20px;
  font-family: var(--font-display); font-style: italic; font-size: 20px; color: var(--paper);
}
.article-body a { color: var(--signal); text-decoration: underline; text-underline-offset: 3px; }
.article-body strong { color: var(--paper); }
.toc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 26px; margin: 32px 0; }
.toc p.label { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--mint); margin: 0 0 12px; }
.toc ol { margin: 0; padding-left: 18px; font-size: 14px; }
.toc a { color: var(--paper-dim); }
.toc a:hover { color: var(--signal); }

.author-box {
  display: flex; gap: 16px; align-items: center;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; max-width: 700px; margin: 20px auto 0;
}
.author-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--surface-2); flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); color: var(--signal); font-weight: 600; }

/* ---------- Footer ---------- */
footer.site { border-top: 1px solid var(--line); margin-top: 80px; padding: 48px 0 32px; background: var(--surface); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
.footer-grid h4 { font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--mint); margin: 0 0 14px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-grid a { color: var(--paper-dim); font-size: 14px; }
.footer-grid a:hover { color: var(--signal); }
.footer-bottom { display: flex; justify-content: space-between; font-size: 13px; color: var(--paper-dim); flex-wrap: wrap; gap: 12px; }

/* ---------- Admin panel ---------- */
.admin-shell { max-width: 980px; margin: 0 auto; padding: 48px 28px 80px; }
.admin-login { max-width: 380px; margin: 100px auto; text-align: center; }
.admin-login input { width: 100%; background: var(--surface); border: 1px solid var(--line-strong); border-radius: 8px; padding: 12px 16px; margin-bottom: 12px; font-family: var(--font-body); font-size: 14px; color: var(--paper); }
.admin-login input:focus-visible { outline: 2px solid var(--signal); }
.admin-error { color: #C0392B; font-size: 13px; margin-top: 10px; min-height: 18px; }

.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; flex-wrap: wrap; gap: 16px; }
.admin-tabs { display: flex; gap: 8px; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
.admin-tab { padding: 10px 18px; font-size: 14px; font-weight: 600; color: var(--paper-dim); cursor: pointer; border-bottom: 2px solid transparent; background: none; border-top: none; border-left: none; border-right: none; font-family: var(--font-body); }
.admin-tab.active { color: var(--signal); border-bottom-color: var(--signal); }

.stat-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 32px; }
.stat-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.stat-card .num { font-family: var(--font-display); font-size: 30px; font-weight: 600; color: var(--signal); }
.stat-card .label { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; color: var(--paper-dim); letter-spacing: 0.05em; margin-top: 4px; }

.analytics-row { display: flex; align-items: center; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.analytics-row .title { flex: 1; font-size: 14px; font-weight: 600; }
.analytics-row .bar-track { flex: 1; height: 8px; background: var(--surface); border-radius: 100px; overflow: hidden; }
.analytics-row .bar-fill { height: 100%; background: var(--signal); border-radius: 100px; }
.analytics-row .count { font-family: var(--font-mono); font-size: 12px; width: 70px; text-align: right; color: var(--paper-dim); }

.post-table { width: 100%; border-collapse: collapse; }
.post-table th { text-align: left; font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; color: var(--paper-dim); padding: 10px 8px; border-bottom: 1px solid var(--line-strong); }
.post-table td { padding: 12px 8px; border-bottom: 1px solid var(--line); font-size: 14px; vertical-align: middle; }
.post-table .row-actions { display: flex; gap: 8px; }
.post-table .row-actions button { font-size: 12px; padding: 6px 12px; border-radius: 6px; border: 1px solid var(--line-strong); background: none; color: var(--paper); cursor: pointer; font-family: var(--font-body); }
.post-table .row-actions button.danger { color: #C0392B; border-color: #C0392B; }

.editor-form label { display: block; font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--paper-dim); margin: 20px 0 8px; }
.editor-form input[type=text], .editor-form textarea, .editor-form select {
  width: 100%; background: var(--surface); border: 1px solid var(--line-strong); border-radius: 8px;
  padding: 11px 14px; font-family: var(--font-body); font-size: 14px; color: var(--paper);
}
.editor-form textarea { min-height: 90px; resize: vertical; }
.editor-form .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.dropzone {
  border: 2px dashed var(--line-strong); border-radius: var(--radius); padding: 32px;
  text-align: center; cursor: pointer; transition: border-color .15s ease, background .15s ease;
  background: var(--surface);
}
.dropzone.dragover { border-color: var(--signal); background: rgba(36,84,255,0.05); }
.dropzone p { margin: 0; color: var(--paper-dim); font-size: 14px; }
.dropzone-preview { max-width: 100%; max-height: 180px; border-radius: 8px; margin: 0 auto 12px; }

#quillEditor { background: var(--surface); border: 1px solid var(--line-strong); border-radius: 8px; min-height: 260px; color: var(--paper); }
.ql-toolbar.ql-snow { border-color: var(--line-strong) !important; border-radius: 8px 8px 0 0; }
.ql-container.ql-snow { border-color: var(--line-strong) !important; border-radius: 0 0 8px 8px; font-family: var(--font-body); font-size: 15px; }
.ql-snow .ql-stroke { stroke: var(--paper-dim) !important; }
.ql-snow .ql-picker { color: var(--paper-dim) !important; }

@media (max-width: 720px) {
  .stat-cards { grid-template-columns: 1fr 1fr; }
  .editor-form .field-row { grid-template-columns: 1fr; }
}
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .featured { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .newsletter { flex-direction: column; align-items: flex-start; }
}