*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#f6f7f9;
  --surface:#fff;
  --ink:#0b1220;
  --muted:#5b6675;
  --line:#e3e7ed;
  --accent:#0e7c6b;
  --accent-strong:#0a5f52;
  --accent-soft:#e7f4f1;
  --radius:14px;
  --shadow:0 1px 2px rgba(11,18,32,.05),0 10px 30px rgba(11,18,32,.06);
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.6;letter-spacing:-.011em;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0 0 .45em;line-height:1.12;letter-spacing:-.03em;font-weight:680}
p{margin:0 0 1em}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* header */
.site-head{
  position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:26px;
  height:72px;padding:0 clamp(20px,5vw,56px);
  background:rgba(255,255,255,.86);border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.brand{display:inline-flex;align-items:center;gap:12px;font-size:18px;font-weight:650;letter-spacing:-.02em}
.brand-mark{
  display:grid;place-items:center;width:30px;height:30px;border-radius:9px;
  background:var(--ink);color:#fff;font-size:14px;font-weight:700;
}
.site-nav{margin-left:auto;display:flex;gap:24px;font-size:14px;color:var(--muted)}
.site-nav a:hover{color:var(--ink)}
.head-note{margin-left:auto;font-size:13px;color:var(--muted);letter-spacing:.02em}

/* layout */
main{max-width:1120px;margin:0 auto;padding:0 clamp(20px,5vw,56px)}
.hero{padding:clamp(56px,8vw,100px) 0 56px;max-width:780px}
.eyebrow{
  margin:0 0 18px;font-size:12px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);
}
.hero h1{font-size:clamp(38px,5.4vw,60px);letter-spacing:-.045em;margin-bottom:24px}
.lede{font-size:18px;color:var(--muted);max-width:62ch;margin-bottom:28px}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.hero-note{font-size:13px;color:var(--muted)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border:1px solid transparent;border-radius:10px;
  font:inherit;font-size:15px;font-weight:600;cursor:pointer;
  transition:background .15s,border-color .15s,transform .05s;
}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-strong)}
.btn.ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:#c6ccd6}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding-bottom:80px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card-num{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--accent)}
.card h2{font-size:19px;margin:14px 0 8px}
.card p{font-size:14.5px;color:var(--muted);margin:0}

.site-foot{
  max-width:1120px;margin:0 auto;padding:24px clamp(20px,5vw,56px) 40px;
  border-top:1px solid var(--line);display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);
}

/* verification page */
.center{max-width:680px;padding-top:clamp(32px,6vw,64px);padding-bottom:72px}
.crumbs{
  margin:0 0 20px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);
}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:clamp(28px,5vw,44px);box-shadow:var(--shadow);
}
.panel h1{font-size:clamp(26px,4vw,34px);margin-bottom:10px}
.panel .lede{margin-bottom:28px;font-size:16px}

.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;margin-bottom:16px;
  border-radius:999px;background:var(--accent-soft);color:var(--accent-strong);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge.muted{background:#f1f3f6;color:var(--muted)}

.check{
  display:flex;align-items:center;gap:14px;width:100%;max-width:380px;
  padding:16px 18px;border:1px solid #d3d9e2;border-radius:12px;background:#fff;
  box-shadow:0 1px 2px rgba(11,18,32,.05);cursor:pointer;user-select:none;
  transition:border-color .15s;
}
.check:hover{border-color:#b9c1cd}
.check input{width:22px;height:22px;margin:0;flex:none;cursor:pointer;accent-color:var(--accent)}
.check-label{font-size:15px;font-weight:550}
.check-mark{
  margin-left:auto;text-align:right;font-size:10.5px;line-height:1.35;
  font-weight:650;color:#8b95a3;
}
.check-mark small{font-weight:500;color:#a3adba}

.hint{margin:16px 0 0;font-size:13px;color:var(--muted)}

.spinner{
  width:16px;height:16px;flex:none;border-radius:50%;
  border:2px solid #d8dee6;border-top-color:var(--accent);
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.steps{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:12px}
.steps li{display:flex;align-items:flex-start;gap:14px;font-size:15px;color:#26303f}
.step-num{
  display:grid;place-items:center;width:24px;height:24px;flex:none;margin-top:1px;
  border-radius:50%;background:var(--accent-soft);color:var(--accent-strong);
  font-size:12px;font-weight:700;
}
kbd{
  display:inline-block;padding:2px 7px;border:1px solid #cfd6df;border-bottom-width:2px;
  border-radius:6px;background:#fbfcfd;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12.5px;line-height:1.5;color:#26303f;
}

.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.status{margin:16px 0 0;min-height:20px;font-size:13.5px;color:var(--muted)}
.status[data-result="copied"]{color:var(--accent-strong)}
.status[data-result="manual"]{color:#b54708}

.manual{margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}
.manual summary{cursor:pointer;font-size:13.5px;font-weight:550;color:var(--muted)}
.manual summary:hover{color:var(--ink)}
.manual textarea{
  width:100%;margin-top:12px;padding:12px 14px;resize:vertical;
  border:1px solid var(--line);border-radius:10px;background:#fbfcfd;color:#26303f;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px;line-height:1.6;
}

.docs{
  list-style:none;margin:0 0 28px;padding:0;display:grid;gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.docs li{display:flex;align-items:center;gap:14px;background:#fff;padding:14px 16px;font-size:14.5px}
.lock{
  margin-left:auto;padding:3px 8px;border-radius:6px;background:#f1f3f6;
  font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#8b95a3;
}

[hidden]{display:none!important}

/* operator log */
.admin-wrap{max-width:1240px;margin:0 auto;padding:40px 24px}
table.admin{
  width:100%;border-collapse:collapse;font-size:13px;background:#fff;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
table.admin th,table.admin td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.admin th{
  background:#fafbfc;font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;
  color:var(--muted);
}
table.admin tr:last-child td{border-bottom:0}
.pill{
  display:inline-block;margin:1px 3px 1px 0;padding:1px 8px;border-radius:999px;
  background:#f1f3f6;font-size:11px;color:#3d4a5c;
}
.pill.hit{background:var(--accent-soft);color:var(--accent-strong);font-weight:700}

@media(max-width:820px){
  .grid{grid-template-columns:1fr}
  .site-nav{display:none}
  .site-foot{flex-direction:column}
}