/* Cartage Core — marketing site. Self-contained, no build step, no external deps. */
:root{
  --bg:#0b1220; --bg-soft:#0f1830; --card:#111c38; --line:#22304f;
  --text:#e7edf7; --muted:#9fb0cc; --brand:#3b82f6; --brand-2:#22d3ee;
  --accent:#1d4ed8; --ok:#22c55e; --max:1120px; --r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 600px at 70% -10%,rgba(59,130,246,.18),transparent 60%),var(--bg);
  color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.muted{color:var(--muted)}
h1,h2,h3{line-height:1.2;margin:0 0 .4em}
h1{font-size:clamp(2rem,5vw,3.4rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3.5vw,2.2rem);letter-spacing:-.01em}
.section{padding:84px 0}
.center{text-align:center}
.eyebrow{color:var(--brand-2);font-weight:600;letter-spacing:.08em;text-transform:uppercase;font-size:.78rem}

/* nav */
header.nav{position:sticky;top:0;z-index:20;backdrop-filter:blur(10px);
  background:rgba(11,18,32,.72);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--text);font-size:1.12rem}
.brand:hover{text-decoration:none}
.logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:grid;place-items:center;color:#06101f;font-weight:900;font-size:.95rem}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--muted);font-weight:500}
.nav-links a:hover{color:var(--text);text-decoration:none}
.nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:1.6rem;cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:11px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.15s;font-size:.98rem}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand)}

/* hero */
.hero{padding:96px 0 70px}
.hero p.lede{font-size:1.2rem;color:var(--muted);max-width:640px;margin:18px auto 30px}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.pill{display:inline-block;border:1px solid var(--line);background:var(--bg-soft);
  border-radius:999px;padding:6px 14px;font-size:.82rem;color:var(--muted);margin-bottom:18px}
.mock{margin:54px auto 0;max-width:920px;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:var(--card);box-shadow:0 30px 80px rgba(0,0,0,.45)}
.mock .bar{display:flex;gap:7px;padding:12px 14px;border-bottom:1px solid var(--line);background:var(--bg-soft)}
.mock .bar i{width:11px;height:11px;border-radius:50%;background:#33425f;display:inline-block}
.mock .body{padding:18px}
.mock table{width:100%;border-collapse:collapse;font-size:.86rem}
.mock th,.mock td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line)}
.mock th{color:var(--muted);font-weight:600}
.tag{font-size:.72rem;padding:2px 9px;border-radius:999px;border:1px solid var(--line)}
.tag.g{color:#9af7c0;border-color:#1f6f45;background:#0d291c}
.tag.b{color:#9cc7ff;border-color:#27508a;background:#0c1c33}

/* grids */
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.feature .ic{width:42px;height:42px;border-radius:10px;background:var(--bg-soft);border:1px solid var(--line);
  display:grid;place-items:center;font-size:1.3rem;margin-bottom:14px}
.feature h3{font-size:1.12rem}
.feature p{color:var(--muted);margin:0;font-size:.96rem}

/* steps */
.steps{counter-reset:s}
.step{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.step:last-child{border-bottom:0}
.step .n{counter-increment:s;min-width:38px;height:38px;border-radius:50%;background:var(--bg-soft);
  border:1px solid var(--line);display:grid;place-items:center;font-weight:800;color:var(--brand-2)}
.step .n::before{content:counter(s)}

/* cta band */
.band{background:linear-gradient(135deg,rgba(59,130,246,.16),rgba(34,211,238,.10));
  border:1px solid var(--line);border-radius:18px;padding:46px;text-align:center}

/* footer */
footer{border-top:1px solid var(--line);padding:48px 0;color:var(--muted)}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot a{color:var(--muted)}
.foot a:hover{color:var(--text)}

/* blog */
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.post-card h3{font-size:1.18rem;margin-bottom:6px}
.post-card .meta{color:var(--muted);font-size:.84rem;margin-bottom:10px}
article.post{max-width:760px;margin:0 auto}
article.post h1{font-size:clamp(1.8rem,4vw,2.6rem)}
article.post .meta{color:var(--muted);margin-bottom:28px}
article.post h2{margin-top:34px}
article.post p,article.post li{color:#cdd8ec}
article.post code{background:var(--bg-soft);border:1px solid var(--line);padding:1px 6px;border-radius:6px;font-size:.9em}

/* forms */
.form{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;max-width:600px;margin:0 auto}
.form label{display:block;font-weight:600;margin:14px 0 6px;font-size:.92rem}
.form input,.form textarea{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);
  background:var(--bg-soft);color:var(--text);font:inherit}
.form input:focus,.form textarea:focus{outline:0;border-color:var(--brand)}
.form textarea{min-height:130px;resize:vertical}

@media(max-width:860px){
  .g3,.g2{grid-template-columns:1fr}
  .nav-links{position:fixed;inset:64px 0 auto 0;flex-direction:column;background:var(--bg-soft);
    border-bottom:1px solid var(--line);padding:18px 22px;gap:16px;display:none}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .section{padding:60px 0}
}

/* brand wordmark two-tone (brand kit: one word, cyan Core) */
.brand .core{color:var(--brand-2)}