:root{
  --bg:#070a0f;
  --panel:rgba(255,255,255,.05);
  --panel2:rgba(255,255,255,.08);
  --text:#e8eefc;
  --muted:rgba(232,238,252,.75);
  --border:rgba(255,255,255,.12);
  --green:#12c16f;
  --red:#ff4d4d;
  --amber:#ffcc00;
  --shadow: 0 18px 60px rgba(0,0,0,.55);
  --radius:22px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 700px at 50% 0%, rgba(51,96,255,.18), transparent 60%),
              radial-gradient(1200px 800px at 10% 80%, rgba(18,193,111,.12), transparent 60%),
              var(--bg);
}

a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}

.container{
  width:min(1100px, 92vw);
  margin:0 auto;
}

.nav{
  position:sticky;
  top:0;
  backdrop-filter: blur(10px);
  background: rgba(7,10,15,.65);
  border-bottom:1px solid var(--border);
  z-index:999;
}

.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:12px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  letter-spacing:.3px;
}
.logo{
  width:34px;height:34px;border-radius:12px;
  background: linear-gradient(135deg, rgba(51,96,255,.9), rgba(18,193,111,.9));
  box-shadow: 0 10px 30px rgba(51,96,255,.22);
}
.nav-links{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.nav-links a{
  padding:8px 10px;
  border-radius:12px;
  color:var(--muted);
}
.nav-links a.active,
.nav-links a:hover{
  background: var(--panel);
  color: var(--text);
  text-decoration:none;
}

.hero{
  padding:44px 0 26px;
}
.hero h1{
  margin:0 0 10px;
  font-size: clamp(26px, 3.2vw, 42px);
  letter-spacing:.2px;
}
.hero p{
  margin:0;
  color:var(--muted);
  line-height:1.55;
  max-width: 820px;
}

.card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.section{
  padding: 18px 0 44px;
}

.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap:16px;
}
@media (min-width: 920px){
  .grid.cols-2{grid-template-columns: 1fr 1fr;}
  .grid.cols-3{grid-template-columns: 1fr 1fr 1fr;}
}

.card-pad{padding:18px}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.14);
  background: var(--green);
  color:#02140b;
  font-weight:800;
  cursor:pointer;
  user-select:none;
  box-shadow: 0 18px 50px rgba(18,193,111,.18);
}
.btn:disabled{
  opacity:.55;
  cursor:not-allowed;
}

.btn-secondary{
  background: rgba(255,255,255,.06);
  color: var(--text);
}

.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 7px 10px;
  border-radius: 999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  font-size: 13px;
}

.scan-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}

.big-ip{
  display:flex;
  align-items:center;
  gap:12px;
  padding: 18px;
}
.big-ip .ip{
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 900;
  letter-spacing: .8px;
}
.big-ip .sub{
  margin-top:6px;
  color: var(--muted);
  font-size: 14px;
}

.table{
  width:100%;
  border-collapse: collapse;
  overflow:hidden;
  border-radius: 16px;
  border:1px solid var(--border);
}
.table th, .table td{
  text-align:left;
  padding: 12px 12px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  vertical-align: top;
}
.table th{
  font-size: 12px;
  letter-spacing: .6px;
  text-transform: uppercase;
  color: rgba(232,238,252,.68);
  background: rgba(255,255,255,.03);
}
.table tr:last-child td{border-bottom:none}

.kv{
  display:grid;
  grid-template-columns: 1fr;
  gap:10px;
}
@media (min-width: 760px){
  .kv{grid-template-columns: 1fr 1fr;}
}
.kv .item{
  padding: 12px;
  border-radius: 16px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}
.kv .label{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .55px;
  color: rgba(232,238,252,.62);
}
.kv .value{
  margin-top:6px;
  font-weight:700;
  word-break: break-word;
}

.badge-ok{color: var(--green); font-weight:800}
.badge-warn{color: var(--amber); font-weight:800}
.badge-bad{color: var(--red); font-weight:800}

.footer{
  padding: 28px 0 44px;
  color: rgba(232,238,252,.60);
  font-size: 14px;
}

.note{
  color: var(--muted);
  line-height:1.55;
}

hr.sep{
  border:0;
  border-top:1px solid rgba(255,255,255,.10);
  margin: 18px 0;
}

input, textarea{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.05);
  color: var(--text);
  outline:none;
}
textarea{min-height:140px; resize: vertical}
.form-row{display:grid; gap:12px}
@media(min-width:820px){ .form-row{grid-template-columns:1fr 1fr;} }

.alert{
  padding: 12px 14px;
  border-radius: 16px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
}
.alert.ok{border-color: rgba(18,193,111,.35)}
.alert.bad{border-color: rgba(255,77,77,.35)}
/* Scan page layout refinements (browserscan-ish) */
.scan-layout{
  display:block;
}

.kv-compact{
  grid-template-columns: 1fr;
}
@media (min-width: 760px){
  .kv-compact{
    grid-template-columns: 1fr 1fr 1fr;
  }
}

/* Make each kv item look like browserscan tiles */
.kv .item{
  background: rgba(255,255,255,.035);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 10px 30px rgba(0,0,0,.20);
}

.kv .label{
  font-size: 11px;
  letter-spacing: .7px;
}

.kv .value{
  font-size: 15px;
}

/* Raw JSON box styling */
.raw-box{
  margin:12px 0 0;
  padding:14px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.28);
  overflow:auto;
  max-height:520px;
}

/* Optional: make the IP block tighter like browserscan */
.big-ip{
  border-radius: 24px;
}
/* Only for specific IPs */
.scan-layout.wide-mode #keyParamsCard,
.scan-layout.wide-mode #rawJsonCard{
  width: 100%;
}

/* In normal mode you could still keep them stacked (as you requested).
   If later you want normal mode = 2 columns, скажи — сделаю. */
/* ===== Scan layout: default 2 columns ===== */
.scan-layout{
  display:grid;
  gap: 16px;
}

.scan-layout.cols-2{
  grid-template-columns: 1fr;
}
@media (min-width: 980px){
  .scan-layout.cols-2{
    grid-template-columns: 420px 1fr; /* слева плитки, справа JSON */
    align-items: start;
  }
}

/* ===== Wide mode (only for your IP): stack full width ===== */
.scan-layout.wide-mode{
  grid-template-columns: 1fr !important;
}

/* ===== Key parameters grid (tiles) ===== */
.kv{
  display:grid;
  gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 760px){
  .kv.kv-compact{
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.kv .item{
  background: rgba(255,255,255,.035);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  padding: 12px 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,.20);
}
.kv .label{
  font-size: 11px;
  letter-spacing: .7px;
  opacity: .75;
  margin-bottom: 6px;
  text-transform: uppercase;
}
.kv .value{
  font-size: 15px;
  font-weight: 600;
  word-break: break-word;
}

/* ===== Raw JSON box ===== */
.raw-box{
  margin:12px 0 0;
  padding:14px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.28);
  overflow:auto;
  max-height:520px;
}