/* ── LeadPilot · shared content-page styles ──────────────── */
:root {
  --bg: #ffffff;
  --bg-elevated: #faf8ff;
  --bg-sunken: #f3f0ff;
  --ink: #0a0a14;
  --ink-soft: #2a2840;
  --muted: #6b6880;
  --muted-2: #9c98b0;
  --border: #ece9f5;
  --border-strong: #d8d3ea;
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --accent-soft: #ddd6fe;
  --accent-ink: #ffffff;
  --accent-ring: rgba(124, 58, 237, 0.32);
  --grad: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
  --grad-soft: linear-gradient(135deg, #ddd6fe 0%, #fce7f3 100%);
  --success: #10b981;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --shadow-sm: 0 1px 2px rgba(20, 14, 50, 0.04);
  --shadow-md: 0 4px 16px -4px rgba(124, 58, 237, 0.10), 0 1px 3px rgba(20, 14, 50, 0.06);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}
:root[data-theme="dark"] {
  --bg: #0a0a14;
  --bg-elevated: #14101f;
  --bg-sunken: #0f0c1a;
  --ink: #f5f3ff;
  --ink-soft: #d8d4ee;
  --muted: #9491a8;
  --muted-2: #5e5c70;
  --border: #221d33;
  --border-strong: #322a47;
  --accent: #a78bfa;
  --accent-hover: #c4b5fd;
  --accent-soft: #2e2347;
  --grad: linear-gradient(135deg, #a78bfa 0%, #f0abfc 100%);
  --grad-soft: linear-gradient(135deg, #2e2347 0%, #3a1e3a 100%);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  display: flex;
  flex-direction: column;
}
a { color: var(--accent); text-decoration: none; transition: color 200ms var(--ease); }
a:hover { color: var(--accent-hover); text-decoration: underline; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
svg { display: block; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* Nav */
.page-nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
}
.page-nav .nav-left { display: flex; align-items: center; gap: 20px; }
.wordmark { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; letter-spacing: -0.025em; color: var(--ink); }
.wordmark:hover { text-decoration: none; }
.wordmark-glyph {
  width: 26px; height: 26px; display: grid; place-items: center;
  background: var(--grad); color: var(--accent-ink); border-radius: 8px;
  box-shadow: 0 2px 8px -1px var(--accent-ring), inset 0 1px 0 rgba(255,255,255,0.25);
}
.wordmark-glyph svg { width: 16px; height: 16px; }
.page-nav .nav-links { display: flex; gap: 18px; font-size: 14px; }
.page-nav .nav-links a { color: var(--muted); font-weight: 500; }
.page-nav .nav-links a:hover { color: var(--ink); text-decoration: none; }
.page-nav .nav-right { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  width: 36px; height: 36px; display: grid; place-items: center;
  border-radius: 10px; border: 1px solid var(--border); color: var(--muted);
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .sun, .theme-toggle .moon { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: block; }
:root:not([data-theme="dark"]) .theme-toggle .moon { display: block; }
.back-link {
  display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted);
  padding: 8px 14px; border: 1px solid var(--border); border-radius: 999px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}
.back-link:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); text-decoration: none; }
.back-link svg { width: 14px; height: 14px; }
@media (max-width: 640px) { .page-nav .nav-links { display: none; } }

/* Main + prose */
.page-main { flex: 1; padding: clamp(32px, 6vw, 72px) 24px clamp(48px, 8vw, 96px); }
.prose { max-width: 760px; margin: 0 auto; }
.prose .kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.10em;
  text-transform: uppercase; color: var(--accent); font-weight: 600;
  padding: 5px 11px; background: var(--accent-soft); border-radius: 999px;
}
.prose h1 {
  margin: 20px 0 0; font-size: clamp(2rem, 4vw + 0.5rem, 3rem);
  font-weight: 700; letter-spacing: -0.035em; line-height: 1.05; color: var(--ink);
}
.prose .updated { margin: 12px 0 0; font-family: var(--font-mono); font-size: 12px; color: var(--muted); letter-spacing: 0.02em; }
.prose .intro { margin-top: 24px; font-size: 18px; line-height: 1.6; color: var(--ink-soft); }
.prose h2 {
  margin: 48px 0 0; padding-top: 24px; border-top: 1px solid var(--border);
  font-size: 1.375rem; font-weight: 650; letter-spacing: -0.02em; color: var(--ink);
}
.prose h3 { margin: 28px 0 0; font-size: 1.0625rem; font-weight: 600; letter-spacing: -0.015em; color: var(--ink); }
.prose p { margin: 14px 0 0; color: var(--ink-soft); }
.prose ul, .prose ol { margin: 14px 0 0; padding-left: 4px; color: var(--ink-soft); display: grid; gap: 8px; }
.prose li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; list-style: none; }
.prose li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-top: 10px; margin-left: 6px; }
.prose ol { counter-reset: item; }
.prose ol li { counter-increment: item; }
.prose ol li::before { content: counter(item); width: 22px; height: 22px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-family: var(--font-mono); font-size: 11px; font-weight: 600; display: grid; place-items: center; margin: 2px 0 0; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { font-weight: 500; }

/* Callout */
.callout {
  margin: 24px 0 0; padding: 18px 20px;
  background: var(--grad-soft); border: 1px solid var(--accent-soft); border-radius: 14px;
  display: grid; grid-template-columns: 22px 1fr; gap: 12px; align-items: start;
}
.callout svg { width: 18px; height: 18px; color: var(--accent); margin-top: 2px; }
.callout .body { font-size: 14.5px; line-height: 1.55; color: var(--ink-soft); }
.callout .body strong { color: var(--accent); }

/* Definition / key-value table */
.kv { margin: 20px 0 0; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.kv-row { display: grid; grid-template-columns: 200px 1fr; gap: 16px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.kv-row:last-child { border-bottom: 0; }
.kv-row .k { font-weight: 600; color: var(--ink); font-size: 14.5px; }
.kv-row .v { color: var(--muted); font-size: 14.5px; }
@media (max-width: 600px) { .kv-row { grid-template-columns: 1fr; gap: 4px; } }

/* Contact cards */
.contact-grid { margin: 28px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card { padding: 22px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 16px; transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease); }
.contact-card:hover { border-color: var(--accent-soft); box-shadow: var(--shadow-md); }
.contact-card .ic { width: 40px; height: 40px; border-radius: 10px; background: var(--grad-soft); color: var(--accent); display: grid; place-items: center; }
.contact-card .ic svg { width: 20px; height: 20px; }
.contact-card h3 { margin: 14px 0 0; font-size: 1rem; font-weight: 600; color: var(--ink); }
.contact-card p { margin: 4px 0 0; font-size: 14px; color: var(--muted); }
.contact-card a { display: inline-block; margin-top: 10px; font-weight: 600; font-size: 14.5px; }

/* Footer */
.page-footer {
  border-top: 1px solid var(--border); background: var(--bg-elevated);
  padding: 28px 24px; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 11px; color: var(--muted); letter-spacing: 0.02em;
}
.page-footer .links { display: flex; gap: 16px; flex-wrap: wrap; }
.page-footer a { color: var(--muted); }
.page-footer a:hover { color: var(--accent); text-decoration: none; }