/* PeptideCalc — peptide guide pages. Self-contained (no Tailwind), matches the app theme. */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0F1117; --card: #161B27; --border: rgba(255,255,255,0.08);
  --cyan: #22D3EE; --purple: #A78BFA; --amber: #FBBF24;
  --text: #F1F5F9; --muted: #94A3B8; --muted2: #64748B;
}
html { background: var(--bg); scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
.grad { background: linear-gradient(135deg,#22D3EE,#A78BFA); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.pc-wrap { max-width: 820px; margin: 0 auto; padding: 0 20px; }

/* nav */
.pc-nav { position: sticky; top: 0; z-index: 20; background: rgba(15,17,23,.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.pc-nav-inner { display: flex; align-items: center; justify-content: space-between; height: 56px; max-width: 1100px; }
.pc-brand { font-weight: 800; font-size: 17px; color: var(--text); }
.pc-nav-links a { color: var(--muted); font-size: 14px; margin-left: 18px; }
.pc-nav-links a:hover { color: var(--text); text-decoration: none; }

/* article */
.pc-article { padding: 28px 20px 72px; }
.pc-crumb { font-size: 13px; color: var(--muted2); margin-bottom: 18px; }
.pc-crumb a { color: var(--muted); }
h1 { font-size: 34px; font-weight: 800; letter-spacing: -.02em; line-height: 1.15; margin-bottom: 10px; }
.pc-sub { color: var(--muted); font-weight: 600; font-size: 22px; }
.pc-lede { font-size: 18px; color: var(--muted); margin-bottom: 24px; }
.pc-section { margin: 32px 0; }
.pc-section h2 { font-size: 23px; font-weight: 700; margin-bottom: 12px; letter-spacing: -.01em; }
.pc-section h3 { font-size: 16px; font-weight: 700; margin: 18px 0 6px; color: var(--text); }
.pc-section p { color: #CBD5E1; margin-bottom: 12px; }
.pc-muted { color: var(--muted); font-size: 14px; }
.pc-note { color: var(--muted); font-size: 13.5px; }

/* key facts */
.pc-keyfacts { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px 20px; margin: 8px 0 8px; }
.pc-keyfacts h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 10px; }
.pc-keyfacts dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; }
.pc-keyfacts dt { color: var(--muted); font-size: 14px; }
.pc-keyfacts dd { color: var(--text); font-size: 14px; font-weight: 600; }

/* dosing */
.q-badge { display: inline-flex; font-size: 11px; font-weight: 600; padding: 4px 10px; border-radius: 20px; margin-bottom: 12px; }
.q-clinical { background: rgba(34,211,238,.12); color: var(--cyan); }
.q-preclinical { background: rgba(167,139,250,.12); color: var(--purple); }
.q-limited { background: rgba(251,191,36,.1); color: var(--amber); }
.dose-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 4px 0 14px; }
.dose-card { background: rgba(255,255,255,.03); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.dp-label { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; margin-bottom: 4px; }
.dp-dose { font-size: 16px; font-weight: 700; color: var(--text); }
.dp-note { font-size: 12.5px; color: var(--muted); margin-top: 5px; line-height: 1.55; }
.pc-cta { display: inline-block; margin-top: 12px; background: linear-gradient(135deg,#22D3EE,#0891B2); color: #0a1628; font-weight: 700; font-size: 14px; padding: 11px 20px; border-radius: 12px; }
.pc-cta:hover { text-decoration: none; filter: brightness(1.05); }

/* stacks, refs, faq, related */
.pc-stack { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; margin-bottom: 12px; }
.pc-refs { margin-left: 20px; color: #CBD5E1; }
.pc-refs li { margin-bottom: 8px; font-size: 14.5px; }
.pc-faq { border-top: 1px solid var(--border); padding-top: 14px; margin-top: 14px; }
.pc-faq h3 { font-size: 16px; }
.pc-related { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.pc-related a { display: inline-block; background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 7px 15px; font-size: 14px; }

/* hub */
.pc-hublist { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pc-hublist a { display: block; background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; }
.pc-hublist a:hover { border-color: rgba(34,211,238,.4); text-decoration: none; }
.pc-hublist strong { display: block; color: var(--text); margin-bottom: 3px; }
.pc-hublist span { color: var(--muted); font-size: 13px; line-height: 1.5; }

/* disclaimers */
.pc-disc, .pc-disc-inline { background: rgba(251,191,36,.06); border: 1px solid rgba(251,191,36,.2); border-radius: 12px; padding: 12px 15px; color: #FCD34D; font-size: 13px; line-height: 1.6; }
.pc-disc-inline { margin-bottom: 12px; }
.pc-flag { background: rgba(251,191,36,.07); border: 1px solid rgba(251,191,36,.28); border-radius: 12px; padding: 12px 15px; color: var(--amber); font-size: 13px; margin: 12px 0; }
.pc-legal p { color: var(--muted); font-size: 13px; }

/* footer */
.pc-footer { border-top: 1px solid var(--border); padding: 28px 20px 40px; margin-top: 20px; }
.pc-footer .pc-disc { margin-bottom: 14px; }
.pc-foot-links { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.pc-copy { text-align: center; color: var(--muted2); font-size: 12px; }

@media (max-width: 600px) {
  h1 { font-size: 27px; } .pc-sub { font-size: 18px; }
  .dose-grid, .pc-hublist { grid-template-columns: 1fr; }
  .pc-keyfacts dl { grid-template-columns: 1fr; gap: 2px 0; }
  .pc-keyfacts dd { margin-bottom: 8px; }
}