/* ==========================================================
   NewsNator — Design Tokens & Base Styles
   Modern SaaS clean · mono headline + sans body
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=JetBrains+Mono:wght@300;400;500;600;700&display=swap');

:root {
  /* Type */
  --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Light tokens (default) */
  --bg:           #FAFAF7;
  --bg-elev:     #FFFFFF;
  --bg-sunken:   #F2F1ED;
  --bg-inset:    #ECEAE3;
  --fg:           #0E0E0C;
  --fg-soft:     #3A3A36;
  --fg-muted:    #6F6F69;
  --fg-faint:    #9A9A93;
  --border:      #E2E0D8;
  --border-soft: #ECEAE3;
  --border-strong: #2A2A26;

  /* Accent — signal orange (matches the opc.how brand mark) */
  --accent:      #FF6A00;
  --accent-soft: #FFE2CB;
  --accent-fg:   #FFFFFF;

  /* Secondary palette */
  --positive:    #1F7A4D;
  --positive-soft: #DCEEE2;
  --negative:    #B33A2A;
  --negative-soft: #F4DBD6;
  --neutral:     #555550;

  /* Chart ramp */
  --chart-1: #FF6A00;
  --chart-2: #0E0E0C;
  --chart-3: #6F6F69;
  --chart-4: #1F7A4D;
  --chart-5: #B89149;

  /* Radii */
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 0 rgba(14,14,12,0.04), 0 1px 2px rgba(14,14,12,0.04);
  --shadow-md: 0 4px 12px -2px rgba(14,14,12,0.06), 0 2px 4px -2px rgba(14,14,12,0.04);
  --shadow-lg: 0 24px 48px -16px rgba(14,14,12,0.12), 0 8px 16px -8px rgba(14,14,12,0.08);

  /* Motion */
  --ease-out: cubic-bezier(.16,1,.3,1);
}

[data-theme="dark"] {
  --bg:           #0A0A09;
  --bg-elev:     #131311;
  --bg-sunken:   #07070 6;
  --bg-sunken:   #060605;
  --bg-inset:    #1A1A17;
  --fg:           #F5F4EE;
  --fg-soft:     #C9C7BE;
  --fg-muted:    #87867D;
  --fg-faint:    #5A5953;
  --border:      #26261F;
  --border-soft: #1A1A17;
  --border-strong: #C9C7BE;

  --accent:      #FF8A3D;
  --accent-soft: #3A1F0F;
  --accent-fg:   #0A0A09;

  --positive:    #4BB280;
  --positive-soft: #142A20;
  --negative:    #E27566;
  --negative-soft: #2A1816;
  --neutral:     #87867D;

  --chart-1: #FF8A3D;
  --chart-2: #F5F4EE;
  --chart-3: #87867D;
  --chart-4: #4BB280;
  --chart-5: #D9B271;

  --shadow-sm: 0 1px 0 rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px -2px rgba(0,0,0,0.45), 0 2px 4px -2px rgba(0,0,0,0.3);
  --shadow-lg: 0 24px 48px -16px rgba(0,0,0,0.6), 0 8px 16px -8px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'ss01', 'cv11';
}

body {
  min-height: 100vh;
  transition: background-color 240ms var(--ease-out), color 240ms var(--ease-out);
}

a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--fg-faint);
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

/* =====  Typographic primitives  ===== */
.mono { font-family: var(--font-mono); font-feature-settings: 'zero', 'ss02'; }
.sans { font-family: var(--font-sans); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.title-xxl {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  color: var(--fg);
  margin: 0;
}
.title-xl {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0;
}
.title-lg {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0;
}
.title-md {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
}
.title-sm {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 14px;
  line-height: 1.2;
  letter-spacing: 0.01em;
  margin: 0;
}

.lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--fg-soft);
  text-wrap: pretty;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'zero', 'ss02';
}

/* =====  Layout  ===== */
.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}
.container-narrow {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 0 32px;
}

/* =====  Buttons  ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--fg);
  cursor: pointer;
  transition: all 160ms var(--ease-out);
  white-space: nowrap;
}
.btn:hover {
  border-color: var(--fg);
  text-decoration: none;
}
.btn-primary {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}
.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--fg-muted);
}
.btn-ghost:hover {
  color: var(--fg);
  background: var(--bg-sunken);
}
.btn-sm { padding: 4px 10px; font-size: 11px; }

/* =====  Badges & chips  ===== */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: var(--r-xs);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--fg-soft);
  white-space: nowrap;
}
.chip-accent {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}
.chip-positive {
  border-color: transparent;
  color: var(--positive);
  background: var(--positive-soft);
}
.chip-negative {
  border-color: transparent;
  color: var(--negative);
  background: var(--negative-soft);
}
.chip-dot::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* =====  Cards  ===== */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color 160ms var(--ease-out), box-shadow 160ms var(--ease-out), transform 160ms var(--ease-out);
}
.card-hover:hover {
  border-color: var(--fg);
  box-shadow: var(--shadow-md);
}

/* =====  Divider  ===== */
.hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 0;
}
.hr-dashed {
  border: 0;
  border-top: 1px dashed var(--border);
  margin: 0;
}

/* =====  Header / top nav  ===== */
.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.topnav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 32px;
  max-width: 1240px;
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand-mark {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
}
.topnav-links {
  display: flex;
  gap: 4px;
  margin-left: 8px;
}
.topnav-links a {
  padding: 6px 10px;
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  letter-spacing: 0.01em;
  transition: all 140ms var(--ease-out);
  white-space: nowrap;
}
.topnav-links a:hover {
  background: var(--bg-sunken);
  color: var(--fg);
  text-decoration: none;
}
.topnav-links a.active {
  color: var(--fg);
  background: var(--bg-sunken);
}
.topnav-spacer { flex: 1; }
.topnav-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  color: var(--fg-muted);
  cursor: pointer;
  transition: all 140ms var(--ease-out);
}
.icon-btn:hover {
  background: var(--bg-sunken);
  color: var(--fg);
  border-color: var(--border);
}

/* =====  Search input (inline)  ===== */
.search-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 10px 0 10px;
  border-radius: var(--r-sm);
  background: var(--bg-sunken);
  border: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  cursor: pointer;
  min-width: 180px;
  white-space: nowrap;
  transition: all 140ms var(--ease-out);
}
.search-inline:hover {
  border-color: var(--border);
  color: var(--fg);
}
.search-inline kbd {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 1px 4px;
  border-radius: 3px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--fg-faint);
}

/* =====  Footer  ===== */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
  background: var(--bg);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 0 32px;
  max-width: 1240px;
  margin: 0 auto;
}
.footer h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  margin: 0 0 14px;
  font-weight: 500;
}
.footer-link {
  display: block;
  padding: 4px 0;
  font-size: 13px;
  color: var(--fg-soft);
}
.footer-bottom {
  max-width: 1240px;
  margin: 32px auto 0;
  padding: 24px 32px 0;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-faint);
}
.footer-bottom > .grow { flex: 1; }

/* =====  AI disclaimer  ===== */
.ai-strip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-faint);
  letter-spacing: 0.02em;
  flex-wrap: wrap;
}
.ai-strip > span { white-space: nowrap; }
.ai-strip-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  flex-shrink: 0;
}

/* =====  Tool icon  ===== */
.tool-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 5px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--fg);
  overflow: hidden;
  flex-shrink: 0;
}
.tool-icon-20 { width: 20px; height: 20px; font-size: 10px; }
.tool-icon-24 { width: 24px; height: 24px; font-size: 11px; }
.tool-icon-32 { width: 32px; height: 32px; font-size: 13px; border-radius: 6px; }
.tool-icon-48 { width: 48px; height: 48px; font-size: 18px; border-radius: 9px; }

/* =====  Tabular row  ===== */
.row-line {
  display: grid;
  align-items: center;
  border-top: 1px solid var(--border-soft);
  padding: 14px 0;
}
.row-line:first-child { border-top: none; }

/* =====  Section heading  ===== */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.section-head-left {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.section-head h2 { white-space: nowrap; }
.section-head > span, .section-head > a { white-space: nowrap; }
.section-head .count {
  font-family: var(--font-mono);
  color: var(--fg-faint);
  font-size: 13px;
  white-space: nowrap;
}

/* =====  Sparkline  ===== */
.spark { display: inline-block; vertical-align: middle; }

/* =====  Code/inline-code  ===== */
code, .code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--bg-sunken);
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--border-soft);
}

/* =====  Quick-nav  ===== */
.quicknav {
  position: sticky;
  top: 88px;
  align-self: start;     /* don't stretch to match grid row height — required for sticky to actually stick */
  padding-right: 16px;
}
.quicknav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-left: 1px solid var(--border);
}
.quicknav-list li {
  position: relative;
}
.quicknav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  border-left: 2px solid transparent;
  margin-left: -1px;
  transition: all 140ms var(--ease-out);
  white-space: nowrap;
  gap: 8px;
}
.quicknav-list a:hover {
  color: var(--fg);
  text-decoration: none;
}
.quicknav-list a.active {
  color: var(--fg);
  font-weight: 600;
  border-left-color: var(--accent);
  background: transparent;
}
.quicknav-list a.active .count,
.quicknav-list a.active .badge-ai { color: var(--fg-muted); }
.quicknav-list .count {
  color: var(--fg-faint);
  font-size: 11px;
}
.quicknav-list .badge-ai {
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 9px;
  padding: 1px 4px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}

/* ============  Source citation icon  ============ */
.cite .cite-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.cite:hover .cite-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(-2px);
}
.cite:focus-within .cite-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(-2px);
}
html { scroll-behavior: smooth; }

/* =====  Maker section scroll-margin  ===== */
.section-anchor {
  scroll-margin-top: 88px;
}

/* =====  Utility  ===== */
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }
.grow { flex: 1; }
.muted { color: var(--fg-muted); }
.soft { color: var(--fg-soft); }
.faint { color: var(--fg-faint); }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }

/* =====  Scrollbar (Webkit)  ===== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--fg-muted); }

/* =====  Page transitions  ===== */
.page-enter {
  /* animation disabled — was causing render glitches under fast remounts */
  opacity: 1;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

/* =====  Responsive  ===== */
@media (max-width: 900px) {
  .container, .topnav-inner { padding: 0 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; padding: 0 20px; }
  .topnav-inner { gap: 12px; }
  .topnav-links { display: none; }
}