/* LLM Recommendations — design system v1
   Static, no build step, no framework. One stylesheet, one accent colour. */

:root{
  --ink:#0d1117;
  --ink-2:#1b2230;
  --muted:#5b6472;
  --muted-2:#7b8494;
  --line:#e6e9f0;
  --line-2:#d8dde8;
  --bg:#ffffff;
  --soft:#f7f8fb;
  --accent:#1a5cff;
  --accent-dark:#0b3ecf;
  --accent-soft:#eef3ff;
  --good:#0a7a4f;
  --bad:#b42318;
  --radius:12px;
  --radius-lg:18px;
  --shadow:0 1px 2px rgba(16,24,40,.04), 0 12px 32px -12px rgba(16,24,40,.12);
  --wrap:1080px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:16.5px/1.65 var(--font);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;background:#fff;padding:10px 16px;border-radius:8px;z-index:99;box-shadow:var(--shadow)}

/* ---------- header ---------- */
.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);z-index:50}
.site-header nav{display:flex;align-items:center;justify-content:space-between;height:70px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em;font-size:17px;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo .mark{width:26px;height:26px;flex:0 0 26px}
.logo b{color:var(--accent);font-weight:700}
.nav-links{display:flex;gap:28px;font-size:15px;align-items:center}
.nav-links a{color:var(--muted);font-weight:500}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-links a[aria-current="page"]{color:var(--ink);font-weight:600}
/* a CTA inside the nav must keep its own colour — .nav-links a would otherwise
   override .btn and leave grey text on the blue button */
.nav-links a.btn,.nav-links a.btn:hover{color:#fff}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#fff;font-weight:600;padding:13px 22px;border-radius:10px;font-size:15.5px;border:1px solid transparent;cursor:pointer;transition:background .15s ease, transform .15s ease}
.btn:hover{background:var(--accent-dark);text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn.ghost:hover{background:var(--soft);border-color:var(--muted-2)}
.btn.sm{padding:9px 16px;font-size:14.5px;border-radius:8px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* ---------- typography ---------- */
h1,h2,h3,h4{letter-spacing:-.025em;line-height:1.15;margin:0 0 14px;font-weight:720;color:var(--ink)}
h1{font-size:54px;letter-spacing:-.032em}
h2{font-size:34px}
h3{font-size:19px;letter-spacing:-.015em;font-weight:660}
h4{font-size:16px;font-weight:660}
p{margin:0 0 16px}
.lead{font-size:19.5px;line-height:1.6;color:var(--muted);max-width:62ch}
.small{font-size:14px;color:var(--muted);line-height:1.6}
.tiny{font-size:12.5px;color:var(--muted-2);letter-spacing:.02em}
.eyebrow{font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);margin-bottom:14px}
.center{text-align:center}
.measure{max-width:66ch}

/* ---------- sections ---------- */
section{padding:80px 0;border-bottom:1px solid var(--line)}
section.tight{padding:56px 0}
section.plain{border-bottom:0}
.hero{padding:92px 0 80px;border-bottom:1px solid var(--line)}
.hero h1{max-width:20ch}
.hero .lead{margin-bottom:28px}
.dark{background:var(--ink);color:#e9edf5;border-bottom:0}
.dark h2,.dark h3{color:#fff}
.dark .lead,.dark p{color:#a9b3c6}
.soft{background:var(--soft)}
.section-head{max-width:64ch;margin-bottom:40px}
.section-head h2{margin-bottom:12px}

/* ---------- cards & grids ---------- */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px}
.card.flat{box-shadow:none}
.card.raise{box-shadow:var(--shadow)}
.card.accent{border-color:var(--accent);box-shadow:0 10px 36px -14px rgba(26,92,255,.45)}
.card h3{margin-bottom:8px}
.card p:last-child{margin-bottom:0}
.dark .card{background:#141b29;border-color:#232c3d}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:min(560px,100%)}
th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
th{font-size:12.5px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:680;background:var(--soft)}
td strong{font-weight:640}
.yes{color:var(--good);font-weight:640}
.no{color:var(--bad);font-weight:640}

/* ---------- lists ---------- */
ul.ticks{list-style:none;padding:0;margin:0}
ul.ticks li{position:relative;padding:10px 0 10px 30px;border-bottom:1px solid var(--line)}
ul.ticks li:last-child{border-bottom:0}
ul.ticks li::before{content:"";position:absolute;left:2px;top:18px;width:9px;height:9px;border-radius:50%;background:var(--accent)}
ul.ticks li strong{font-weight:640}
ul.arrows{list-style:none;padding:0;margin:0}
ul.arrows li{position:relative;padding:9px 0 9px 26px}
ul.arrows li::before{content:"→";position:absolute;left:0;color:var(--accent);font-weight:700}

/* ---------- price ---------- */
.price{font-size:36px;font-weight:750;letter-spacing:-.03em;line-height:1.1;margin:6px 0 4px}
.price small{font-size:14.5px;font-weight:500;color:var(--muted);letter-spacing:0}
.pill{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:var(--accent-soft);color:var(--accent-dark);padding:5px 10px;border-radius:999px;margin-bottom:14px}

/* ---------- misc ---------- */
code{background:var(--soft);border:1px solid var(--line);padding:1px 6px;border-radius:5px;font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
blockquote{margin:0;padding:18px 22px;border-left:3px solid var(--accent);background:var(--soft);border-radius:0 var(--radius) var(--radius) 0;color:var(--ink-2)}
hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.stack>*+*{margin-top:16px}

/* ---------- form ---------- */
form{display:grid;gap:16px;max-width:560px}
label{font-size:14px;font-weight:620;display:block;margin-bottom:6px}
input,textarea,select{width:100%;font:inherit;font-size:15.5px;padding:12px 14px;border:1px solid var(--line-2);border-radius:10px;background:#fff;color:var(--ink)}
input:focus,textarea:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
textarea{min-height:120px;resize:vertical}

/* ---------- footer ---------- */
.site-footer{padding:56px 0 64px;color:var(--muted);font-size:14.5px;background:var(--soft);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;margin-bottom:36px}
.site-footer h4{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted-2);margin-bottom:12px}
.site-footer a{color:var(--muted);display:block;padding:4px 0}
.site-footer a:hover{color:var(--ink)}
.footer-bottom{border-top:1px solid var(--line-2);padding-top:22px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13.5px;color:var(--muted-2)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .g4,.g3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  h1{font-size:42px}
}
@media (max-width:680px){
  h1{font-size:34px}
  h2{font-size:26px}
  .lead{font-size:17.5px}
  section{padding:56px 0}
  .hero{padding:60px 0 52px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  /* mobile nav: wrap the links onto their own row instead of hiding them —
     a site with no navigation on a phone is not production ready */
  .site-header nav{flex-wrap:wrap;height:auto;padding:12px 0 0;gap:0}
  .nav-links{display:flex;width:100%;flex-wrap:wrap;gap:6px 16px;font-size:14px;
             padding:10px 0 12px;border-top:1px solid var(--line);margin-top:10px}
  .nav-links a{padding:4px 0}
  .nav-links a.btn{display:none}
  .footer-grid{grid-template-columns:1fr}
  .price{font-size:30px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}html{scroll-behavior:auto}}