/* ---------- tokens ---------- */
:root{
  --ink:#0e2238; --ink-2:#17324f; --on-ink:#f2f6fa; --on-ink-dim:#aebfd1;
  --amber:#ffb020; --amber-hover:#ffc24d; --on-amber:#0e2238;
  --bg:#f6f8fb; --surface:#ffffff; --fg:#14212e; --muted:#5a6a7a; --line:#d9e0e8;
  --link:#1f5fd1;
  --sans:system-ui,-apple-system,"Segoe UI","Helvetica Neue",Arial,sans-serif;
  --serif:Charter,"Bitstream Charter","Iowan Old Style",Georgia,"Times New Roman",serif;
  --radius:6px;
}
@media (prefers-color-scheme:dark){
  :root{--ink:#091521;--ink-2:#102338;--bg:#0f161d;--surface:#161f28;--fg:#e6ebf0;--muted:#97a5b3;--line:#27323d;--link:#8bb8ff}
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:5rem}
body{margin:0;background:var(--bg);color:var(--fg);font:18px/1.7 var(--serif);text-rendering:optimizeLegibility}
a{color:var(--link);text-underline-offset:.15em}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
img,video,iframe{max-width:100%;height:auto}
.skip{position:absolute;left:-999px;top:0;background:var(--amber);color:var(--on-amber);padding:.6rem 1rem;font:600 .9rem var(--sans);z-index:100}
.skip:focus{left:.5rem;top:.5rem}
.wrap{max-width:44rem;margin:0 auto;padding:0 1.25rem}
.bar{max-width:62rem;margin:0 auto;padding:0 1.25rem}

/* ---------- buttons ---------- */
.btn{display:inline-block;border:0;border-radius:var(--radius);background:var(--amber);color:var(--on-amber);
  font:700 1rem/1.2 var(--sans);padding:.8rem 1.35rem;text-decoration:none;cursor:pointer;transition:background .15s}
.btn:hover{background:var(--amber-hover)}
.btn.sm{font-size:.9rem;padding:.55rem .95rem}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line)}
.btn.ghost:hover{background:var(--bg)}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:50;background:var(--ink);color:var(--on-ink);border-bottom:1px solid var(--ink-2)}
header.site .bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:3.75rem;flex-wrap:wrap;padding-top:.4rem;padding-bottom:.4rem}
.brand{font:800 1.15rem/1 var(--sans);letter-spacing:.01em;color:var(--on-ink);text-decoration:none}
nav.main{display:flex;align-items:center;gap:.4rem}
nav.main a:not(.btn){font:600 .95rem/1 var(--sans);color:var(--on-ink-dim);text-decoration:none;padding:.65rem .8rem;border-bottom:2px solid transparent}
nav.main a:not(.btn):hover{color:var(--on-ink)}
nav.main a[aria-current="page"]{color:var(--on-ink);border-bottom-color:var(--amber)}
nav.main .btn{margin-left:.6rem}

/* ---------- hero (home) ---------- */
.hero{background:var(--ink);color:var(--on-ink);padding:3.5rem 0 3.75rem}
.hero h1{font:800 clamp(2.2rem,6vw,3.6rem)/1.05 var(--sans);letter-spacing:-.02em;margin:0 0 .9rem;color:var(--on-ink)}
.hero p{font:1.2rem/1.5 var(--sans);color:var(--on-ink-dim);max-width:34rem;margin:0 0 1.8rem}

/* ---------- main ---------- */
main{padding:2.75rem 0 4rem}
main.wide .wrap{max-width:62rem}
h1,h2,h3,h4{font-family:var(--sans);line-height:1.25;color:var(--fg)}
h1{font-size:2.15rem;font-weight:800;letter-spacing:-.015em;margin:0 0 .7rem}
h2{font-size:1.5rem;font-weight:700;margin:2.4rem 0 .7rem}
h3{font-size:1.2rem;font-weight:700;margin:2rem 0 .5rem}
.meta{font:.9rem/1.5 var(--sans);color:var(--muted);margin-bottom:2.2rem}
.meta a{color:var(--muted)}
.section-title{font:700 1.3rem/1.2 var(--sans);margin:0 0 .4rem}

/* ---------- article ---------- */
article p,article li{max-width:42rem}
article a{font-weight:500}
article img{border-radius:var(--radius);display:block;margin:1.6rem 0}
article figure{margin:1.8rem 0}
article figure img{margin:0}
article figcaption{font:.85rem/1.5 var(--sans);color:var(--muted);margin-top:.5rem}
article table{display:block;overflow-x:auto;border-collapse:collapse;max-width:100%;font:.95rem/1.5 var(--sans)}
article th,article td{border:1px solid var(--line);padding:.5rem .8rem;text-align:left}
article th{background:var(--surface)}
article pre,article code{font-size:.9em}
article pre{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1rem}
article blockquote{margin:1.6rem 0;padding:.2rem 0 .2rem 1.1rem;border-left:4px solid var(--amber);color:var(--muted)}
article hr{border:0;border-top:1px solid var(--line);margin:2.4rem 0}

/* ---------- post list ---------- */
ul.posts{list-style:none;margin:1.2rem 0 0;padding:0}
ul.posts li{display:grid;grid-template-columns:7.5rem 1fr;gap:0 1.5rem;padding:1.15rem 0;border-top:1px solid var(--line)}
ul.posts time{font:.85rem/1.6 var(--sans);color:var(--muted);padding-top:.25rem}
ul.posts a.t{font:700 1.2rem/1.35 var(--sans);color:var(--fg);text-decoration:none}
ul.posts a.t:hover{color:var(--link);text-decoration:underline}
ul.posts p{margin:.3rem 0 0;color:var(--muted);font:.95rem/1.55 var(--sans)}
@media (max-width:640px){ul.posts li{grid-template-columns:1fr}ul.posts time{padding:0 0 .15rem}}

/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1.25rem;margin-top:2rem;align-items:stretch}
.plan{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem 1.5rem 1.7rem;display:flex;flex-direction:column;font-family:var(--sans)}
.plan.featured{border:2px solid var(--amber)}
.plan .flag{position:absolute;top:-.8rem;left:1.5rem;background:var(--amber);color:var(--on-amber);font:700 .75rem/1 var(--sans);padding:.35rem .6rem;border-radius:4px}
.plan h2{font-size:1.15rem;margin:0 0 .8rem}
.plan .price{font:800 2.6rem/1 var(--sans);letter-spacing:-.02em}
.plan .per{color:var(--muted);font-size:.9rem;margin:.35rem 0 1.2rem}
.plan ul{list-style:none;margin:0 0 1.5rem;padding:0;font-size:.95rem;line-height:1.5}
.plan li{padding:.35rem 0;border-top:1px solid var(--line)}
.plan .btn{margin-top:auto;text-align:center}

/* ---------- popup ---------- */
dialog.cta{border:0;padding:0;border-radius:10px;background:var(--surface);color:var(--fg);width:calc(100% - 2rem);max-width:26rem;box-shadow:0 20px 60px rgba(0,0,0,.35)}
dialog.cta::backdrop{background:rgba(9,21,33,.62)}
dialog.cta[open]{animation:pop .22s ease-out}
dialog.cta[open]::backdrop{animation:fade .22s ease-out}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}
@keyframes fade{from{opacity:0}to{opacity:1}}
.cta-box{position:relative;padding:2rem 1.75rem 1.75rem;font-family:var(--sans)}
.cta-box h2{margin:0 0 .6rem;font-size:1.5rem}
.cta-box p{margin:0 0 1.5rem;color:var(--muted);font-size:1rem;line-height:1.55}
.cta-actions{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center}
.cta-close{position:absolute;top:.6rem;right:.6rem;width:2.4rem;height:2.4rem;border:0;border-radius:50%;background:transparent;color:var(--muted);font:1.6rem/1 var(--sans);cursor:pointer}
.cta-close:hover{background:var(--bg);color:var(--fg)}

/* ---------- footer ---------- */
footer.site{background:var(--ink);color:var(--on-ink-dim);padding:1.75rem 0 2.25rem;font:.9rem/1.6 var(--sans)}
footer.site .bar{display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;justify-content:space-between;align-items:center}
footer.site a{color:var(--on-ink);text-decoration:none}
footer.site a:hover{text-decoration:underline}

/* ---------- small screens ---------- */
@media (max-width:560px){
  body{font-size:17px}
  h1{font-size:1.75rem}
  .hero{padding:2.5rem 0 2.75rem}
  nav.main a:not(.btn){padding:.6rem .55rem}
  nav.main .btn{margin-left:.2rem}
}
@media (prefers-reduced-motion:reduce){
  dialog.cta[open],dialog.cta[open]::backdrop{animation:none}
  .btn{transition:none}
}