*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#fafafa;--text:#1a1a1a;--text2:#666;--text3:#999;
  --accent:#111;--green:#16a34a;--border:#e5e5e5;--surface:#fff;--surface2:#f3f3f4;
  --radius:12px;
}
[data-theme="dark"]{
  --bg:#0c0c0e;--text:#ededef;--text2:#888;--text3:#555;
  --accent:#ededef;--green:#22c55e;--border:#26262a;--surface:#16161a;--surface2:#1c1c20;
}
html,body{height:100%}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.5;-webkit-font-smoothing:antialiased;
  transition:background .2s,color .2s;
}
img{max-width:100%}
a{color:inherit}

/* ---------- theme button ---------- */
.theme-btn{
  position:fixed;top:18px;right:18px;z-index:50;
  background:var(--surface);border:1px solid var(--border);border-radius:8px;
  padding:5px 9px;cursor:pointer;font-size:14px;line-height:1;color:var(--text);
  transition:border-color .15s,transform .15s;
}
.theme-btn:hover{border-color:var(--text3);transform:rotate(180deg)}

/* ---------- layout ---------- */
.page{max-width:900px;margin:0 auto;padding:0 24px}
.sec{padding:34px 0;border-top:1px solid var(--border)}
.sec:first-of-type{border-top:0}
.label{
  font-size:12px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text3);margin-bottom:10px;
}
.sec-title{font-size:clamp(20px,3.4vw,26px);font-weight:600;letter-spacing:-.6px;margin-bottom:8px}
.sec-sub{color:var(--text2);font-size:15px;max-width:620px;margin-bottom:18px}

/* ---------- hero ---------- */
.hero{padding:84px 0 56px;text-align:center}
.nick{font-size:clamp(28px,7vw,44px);font-weight:600;letter-spacing:-1.5px;color:var(--text)}
.dot{
  display:inline-block;width:8px;height:8px;background:var(--green);
  border-radius:50%;margin-left:6px;vertical-align:middle;
}
.dot.pulse{animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(22,163,74,.35)}50%{box-shadow:0 0 0 6px rgba(22,163,74,0)}}
.tag{font-size:14px;color:var(--text3);margin-top:8px}
.hero-cta{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;background:var(--surface);border:1px solid var(--border);border-radius:8px;
  color:var(--text);font-size:14px;font-family:inherit;padding:11px 20px;line-height:1;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:border-color .15s,background .15s,color .15s,transform .15s;
}
.btn:hover{border-color:var(--text3);transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:var(--bg);border-color:var(--accent)}
.btn-primary:hover{opacity:.86;border-color:var(--accent)}
.btn-sm{padding:7px 14px;font-size:13px}
.btn-ghost{background:none}

/* ---------- socials (slide) ---------- */
.socials{margin-top:30px;display:flex;justify-content:center;align-items:center}
.soc-row{display:flex;align-items:center}
.soc-btn{
  background:none;border:1px solid var(--border);border-radius:8px;color:var(--text2);
  font-size:13px;cursor:pointer;font-family:inherit;padding:10px 18px;line-height:1;
  transition:transform .4s ease,opacity .15s,border-color .15s,color .15s;white-space:nowrap;z-index:1;
}
.soc-btn:hover{border-color:var(--text3);color:var(--text)}
.soc-links{
  display:flex;gap:10px;overflow:hidden;max-width:0;opacity:0;white-space:nowrap;
  transition:max-width .4s ease,opacity .4s ease;
}
.soc-links a{
  border:1px solid var(--border);border-radius:8px;color:var(--text2);text-decoration:none;
  font-size:13px;padding:10px 18px;line-height:1;white-space:nowrap;
  transition:border-color .15s,color .15s;
}
.soc-links a:hover{border-color:var(--text3);color:var(--text)}
.socials.open .soc-links{max-width:600px;opacity:1}
.socials.open .soc-btn{transform:translateX(-40px)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;transition:border-color .15s,transform .15s;
}
.card:hover{border-color:var(--text3);transform:translateY(-2px)}
.card h3{font-size:15px;font-weight:600;margin-bottom:6px;letter-spacing:-.2px}
.card p{font-size:14px;color:var(--text2)}
.card .ic{font-size:16px;margin-bottom:10px;display:block}

/* ---------- steps ---------- */
.steps{list-style:none;counter-reset:s;display:grid;gap:12px}
.steps li{
  counter-increment:s;display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;
}
.steps li::before{
  content:counter(s);flex:0 0 26px;height:26px;border-radius:50%;
  background:var(--surface2);color:var(--text2);font-size:13px;font-weight:600;
  display:flex;align-items:center;justify-content:center;margin-top:1px;
}
.steps b{display:block;font-size:15px;font-weight:600;margin-bottom:3px}
.steps span{font-size:14px;color:var(--text2)}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  border:1px solid var(--border);border-radius:999px;padding:8px 14px;font-size:13px;
  color:var(--text2);background:var(--surface);
}
.chip b{color:var(--text);font-weight:500}

/* ---------- pricing ---------- */
.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.plan{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;display:flex;flex-direction:column;gap:14px;position:relative;
}
.plan.best{border-color:var(--text3)}
.plan .badge{
  position:absolute;top:-9px;left:22px;background:var(--accent);color:var(--bg);
  font-size:11px;letter-spacing:.05em;text-transform:uppercase;padding:3px 9px;border-radius:999px;
}
.plan h3{font-size:14px;font-weight:500;color:var(--text2)}
.plan .price{font-size:30px;font-weight:600;letter-spacing:-1px;line-height:1}
.plan .price small{font-size:13px;font-weight:400;color:var(--text3);letter-spacing:0}
.plan ul{list-style:none;font-size:14px;color:var(--text2);display:grid;gap:7px;flex:1}
.plan li::before{content:"—";color:var(--text3);margin-right:8px}
.plan .btn{text-align:center}

/* ---------- faq ---------- */
.faq{display:grid;gap:10px}
.faq details{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);overflow:hidden}
.faq summary{
  cursor:pointer;list-style:none;padding:16px 20px;font-size:15px;font-weight:500;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--text2)}
.faq .arr{color:var(--text3);transition:transform .25s ease;flex:0 0 auto}
.faq details[open] .arr{transform:rotate(180deg)}
.faq .faq-a{padding:0 20px 18px;font-size:14px;color:var(--text2);max-width:640px}
.faq .faq-a a{color:var(--text);text-decoration:underline;text-underline-offset:2px}

/* ---------- link block ---------- */
.linkbox{
  display:flex;gap:10px;align-items:center;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;
}
.linkbox code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;color:var(--text2);word-break:break-all;flex:1;min-width:180px;
}

/* ---------- legal ---------- */
.legal{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.legal a{
  display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:16px 18px;text-decoration:none;transition:border-color .15s,transform .15s;
}
.legal a:hover{border-color:var(--text3);transform:translateY(-2px)}
.legal a b{display:block;font-size:14px;font-weight:600;margin-bottom:4px}
.legal a span{font-size:13px;color:var(--text3)}

.todo{
  border:1px dashed var(--text3);border-radius:8px;padding:12px 14px;margin:10px 0;
  color:var(--text3);font-size:13px;background:transparent;
}
.todo-inline{
  border-bottom:1px dashed var(--text3);color:var(--text3);font-style:italic;
}

/* ---------- accordion ---------- */
.acc{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}
.acc>summary{
  list-style:none;cursor:pointer;padding:22px 24px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  transition:background .15s;
}
.acc>summary::-webkit-details-marker{display:none}
.acc>summary:hover{background:var(--surface2)}
.acc-h{display:flex;flex-direction:column;gap:8px}
.acc-h .label{margin-bottom:0}
.acc-h .sec-title{margin-bottom:0}
.acc .arr{color:var(--text3);transition:transform .25s ease;flex:0 0 auto;font-size:15px}
.acc[open] .arr{transform:rotate(180deg)}
.acc-body{padding:18px 24px 20px;border-top:1px solid var(--border);margin-top:0}
.acc-body .sec-sub{margin-top:0}


/* ---------- footer ---------- */
footer{padding:36px 0 48px;border-top:1px solid var(--border)}
.foot-links{display:flex;gap:16px;flex-wrap:wrap;align-items:center;font-size:13px}
.foot-links a{color:var(--text2);text-decoration:none}
.foot-links a:hover{color:var(--text)}
.foot-note{margin-top:14px;font-size:12px;color:var(--text3);max-width:640px}
.foot-legal{margin-top:18px;font-size:12px;color:var(--text3);display:grid;gap:5px}
.foot-legal b{color:var(--text2);font-weight:500}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .dot.pulse{animation:none}
}

/* ---------- docs (legal pages) ---------- */
.doc{padding:64px 0 48px}
.doc h1{font-size:clamp(24px,5vw,34px);font-weight:600;letter-spacing:-1px;margin-bottom:8px}
.doc .updated{font-size:13px;color:var(--text3);margin-bottom:26px}
.doc h2{font-size:18px;font-weight:600;margin:24px 0 8px;letter-spacing:-.3px}
.doc h3{font-size:15px;font-weight:600;margin:16px 0 6px}
.doc p,.doc li{font-size:15px;color:var(--text2);margin-bottom:8px}
.doc ol,.doc ul{padding-left:22px}
.doc a{color:var(--text);text-decoration:underline;text-underline-offset:2px}
.doc .back{display:inline-block;margin-bottom:26px;font-size:13px;color:var(--text2);text-decoration:none}
.doc .back:hover{color:var(--text)}
.doc table{width:100%;border-collapse:collapse;margin:14px 0;font-size:14px}
.doc th,.doc td{border:1px solid var(--border);padding:9px 12px;text-align:left;color:var(--text2)}
.doc th{background:var(--surface);color:var(--text);font-weight:500}

/* ---------- mobile ---------- */
@media(max-width:600px){
  .soc-row{flex-direction:column;align-items:center}
  .soc-links{flex-direction:column;width:100%;max-height:0;max-width:none;overflow:hidden;opacity:0;margin-top:0;transition:max-height .4s ease,opacity .4s ease,margin .4s ease}
  .soc-links a{width:100%;text-align:center}
  .socials.open .soc-links{max-height:300px;opacity:1;margin-top:10px}
  .socials.open .soc-btn{transform:none}
  .hero{padding:64px 0 40px}
  .sec{padding:26px 0}
  .page{padding:0 18px}
  .acc>summary{padding:18px}
  .acc-body{padding:18px}
}