/* RunawayHair content site — clean editorial theme, light + dark.
   Distinct from the dark app UI, on-brand via shared accent colors. */
:root{
  --bg:#ffffff; --bg2:#f6f8fb; --ink:#141b26; --ink2:#3a4658; --muted:#5c6b7f; --faint:#8493a6;
  --line:#e4e9f0; --line2:#eef2f7; --card:#ffffff;
  --accent:#2f6df0; --accent2:#6a5cf0; --teal:#12a594;
  --grad:linear-gradient(135deg,#2f6df0,#6a5cf0);
  --tA:#1f9d6b; --tB:#2f6df0; --tC:#c98a1e; --tD:#d1495b; --tP:#8a5cf0;
  --shadow:0 1px 3px rgba(20,27,38,.06),0 8px 24px -14px rgba(20,27,38,.18);
  --maxw:720px;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0b1017; --bg2:#0e141d; --ink:#eaf1f8; --ink2:#c4d0de; --muted:#93a3b8; --faint:#6b7d93;
    --line:#1e2836; --line2:#161f2b; --card:#111925;
    --accent:#5a9bff; --accent2:#8a97ff; --teal:#35d6c0;
    --tA:#3fd08a; --tB:#5a9bff; --tC:#e0b15a; --tD:#f0716f; --tP:#b08cf0;
    --shadow:0 1px 3px rgba(0,0,0,.4),0 12px 30px -16px rgba(0,0,0,.6);
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Inter,Roboto,system-ui,sans-serif;
  font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);letter-spacing:-.01em}
h1{font-size:2.15rem;margin:.2em 0 .5em;font-weight:800}
h2{font-size:1.5rem;margin:1.9em 0 .5em;font-weight:750}
h3{font-size:1.2rem;margin:1.5em 0 .4em;font-weight:700}
p{margin:0 0 1.1em}
hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:18px;padding:12px 20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand img{width:30px;height:30px;border-radius:8px}
.brand small{display:block;font-size:.62rem;font-weight:600;color:var(--faint);letter-spacing:.02em;margin-top:-2px}
.nav-links{display:flex;gap:20px;margin-left:auto;align-items:center}
.nav-links a{color:var(--ink2);font-size:.92rem;font-weight:600}
.nav-links a:hover{color:var(--accent);text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:7px;background:var(--grad);color:#fff;font-weight:700;
  font-size:.9rem;padding:9px 16px;border-radius:10px;box-shadow:var(--shadow)}
.btn:hover{text-decoration:none;filter:brightness(1.05)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.menu-toggle{display:none}
@media(max-width:720px){
  .nav-links{gap:14px}
  .nav-links a.hide-sm{display:none}
  h1{font-size:1.7rem}
  body{font-size:17px}
}

/* layout */
main{max-width:var(--maxw);margin:0 auto;padding:26px 20px 40px}
.wide{max-width:1080px}
.breadcrumb{font-size:.8rem;color:var(--faint);margin:6px 0 14px}
.breadcrumb a{color:var(--muted)}
.eyebrow{font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}

/* TL;DR + callouts */
.tldr{background:var(--bg2);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:12px;padding:16px 18px;margin:0 0 26px;font-size:1.02rem;color:var(--ink2)}
.tldr b{color:var(--ink);text-transform:uppercase;font-size:.72rem;letter-spacing:.08em;display:block;margin-bottom:5px;color:var(--accent)}
.callout{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:1.4em 0;font-size:.95rem;color:var(--ink2)}

/* tier badge */
.tier-badge{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:.85rem;
  padding:6px 12px;border-radius:999px;margin:0 0 20px;color:#fff}
.tier-badge .t{font-size:1rem}
.tierA{background:var(--tA)}.tierB{background:var(--tB)}.tierC{background:var(--tC)}.tierD{background:var(--tD)}.tierP{background:var(--tP)}
.tier-inline{font-size:.72rem;font-weight:800;border-radius:5px;padding:1px 6px;color:#fff;vertical-align:middle}

/* tables */
.article table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.94rem;display:block;overflow-x:auto}
.article th,.article td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.article th{background:var(--bg2);font-weight:700}
.article tr:nth-child(even) td{background:color-mix(in srgb,var(--bg2) 55%,transparent)}

/* article body */
.article ul,.article ol{padding-left:1.3em;margin:0 0 1.1em}
.article li{margin:.35em 0}
.article blockquote{border-left:3px solid var(--line);margin:1.2em 0;padding:2px 16px;color:var(--muted)}
.article code{background:var(--bg2);border:1px solid var(--line);border-radius:5px;padding:1px 5px;font-size:.88em}
.article h2 a.anchor{opacity:0;margin-left:8px;font-size:.8em}
.article sup a{font-weight:700}

/* tool embed */
.tool-embed{margin:1.6em 0}
.tool-embed iframe{width:100%;height:840px;border:1px solid var(--line);border-radius:14px;background:var(--bg2);box-shadow:var(--shadow)}
.tool-note{font-size:.82rem;color:var(--faint);margin-top:8px;text-align:center}
@media(max-width:720px){.tool-embed iframe{height:720px}}

/* app CTA */
.app-cta{display:flex;gap:16px;align-items:center;background:var(--grad);color:#fff;border-radius:16px;
  padding:20px 22px;margin:2em 0;box-shadow:var(--shadow)}
.app-cta .txt{flex:1}
.app-cta h3{color:#fff;margin:0 0 4px}
.app-cta p{margin:0;color:rgba(255,255,255,.9);font-size:.92rem}
.app-cta .btn{background:#fff;color:#1a2740;white-space:nowrap}
@media(max-width:560px){.app-cta{flex-direction:column;align-items:flex-start}}

/* author box */
.author-box{display:flex;gap:14px;align-items:flex-start;background:var(--bg2);border:1px solid var(--line);
  border-radius:14px;padding:16px 18px;margin:2.4em 0 0}
.author-box .av{width:52px;height:52px;border-radius:50%;background:var(--grad);flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.3rem}
.author-box .nm{font-weight:800}
.author-box .role{font-size:.82rem;color:var(--muted);margin:2px 0 6px}
.author-box p{font-size:.9rem;margin:0;color:var(--ink2)}

/* meta line */
.meta-line{font-size:.82rem;color:var(--faint);margin:0 0 22px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.meta-line .dot{width:3px;height:3px;border-radius:50%;background:var(--faint)}

/* home hero */
.hero{text-align:center;padding:20px 0 8px}
.hero h1{font-size:2.5rem;max-width:14ch;margin:0 auto .3em}
.hero .lead{font-size:1.15rem;color:var(--muted);max-width:52ch;margin:0 auto 22px}
.hero .cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
@media(max-width:720px){.hero h1{font-size:2rem}}

/* cards grid (home sections) */
.article h2+p strong:first-child{color:var(--ink)}

/* disclaimer + footer */
.disclaimer{background:color-mix(in srgb,var(--tD) 8%,transparent);border:1px solid color-mix(in srgb,var(--tD) 30%,transparent);
  color:var(--ink2);border-radius:12px;padding:13px 16px;font-size:.85rem;margin:2.4em 0 0}
.site-footer{border-top:1px solid var(--line);background:var(--bg2);margin-top:40px}
.footer-inner{max-width:1080px;margin:0 auto;padding:28px 20px;display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
.footer-col h4{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);margin:0 0 10px}
.footer-col a{display:block;color:var(--ink2);font-size:.9rem;margin:6px 0}
.footer-brand{max-width:280px}
.footer-brand p{font-size:.85rem;color:var(--muted)}
.footer-legal{max-width:1080px;margin:0 auto;padding:14px 20px 26px;font-size:.78rem;color:var(--faint);border-top:1px solid var(--line)}

/* focus */
a:focus-visible,.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}