:root{
  --bg:#061328;
  --panel:#0d1d3c;
  --panel2:#10254a;
  --text:#e7eefc;
  --muted:#a4b1cf;
  --line:#29497a;
  --accent:#79a7ff;
  --accent2:#9fd3ff;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,system-ui,Segoe UI,Arial,sans-serif;
  background: radial-gradient(circle at top left,#0a2350, #061328 42%);
  color:var(--text);
}
a{color:inherit;text-decoration:none}
.container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.site-header{border-bottom:1px solid rgba(121,167,255,.18);position:sticky;top:0;background:rgba(6,19,40,.88);backdrop-filter: blur(10px);z-index:10}
.header-inner,.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 0}
.brand{font-size:34px;font-weight:800;letter-spacing:.2px}
.nav{display:flex;gap:18px;flex-wrap:wrap}
.nav a{color:var(--muted)}
.hero{display:grid;grid-template-columns:2fr 1fr;gap:24px;padding:42px 0 28px}
.eyebrow{color:var(--accent2);text-transform:uppercase;letter-spacing:.15em;font-size:12px}
h1{font-size:54px;line-height:1.05;margin:8px 0 14px}
h2{margin:0 0 14px}
.lead{font-size:20px;color:var(--muted);max-width:800px}
.hero-actions,.grid.two{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 18px;border-radius:14px;background:var(--accent);color:#08152d;font-weight:700;border:0;cursor:pointer
}
.btn.secondary{background:transparent;color:var(--text);border:1px solid var(--line)}
.page-head{padding:28px 0 16px}
.page-head h1{font-size:46px}
.panel,.card{
  background:linear-gradient(180deg,var(--panel),var(--panel2));
  border:1px solid rgba(121,167,255,.18);
  border-radius:22px;
  padding:22px;
  box-shadow:0 8px 30px rgba(0,0,0,.18), inset 0 1px 0 rgba(255,255,255,.04);
}
.grid{display:grid;gap:18px;margin:18px 0}
.cards-4{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.cards-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card h3{margin-top:0}
.preset-list{margin:0;padding-left:18px}
.content-block{padding:10px 0 32px}
.page-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:18px;padding-bottom:32px}
.stack{display:grid;gap:14px}
label{display:grid;gap:8px;font-weight:600}
input[type=text],input[type=number],select,input[type=file]{
  width:100%;background:#152a52;color:var(--text);border:1px solid var(--line);
  border-radius:14px;padding:14px;font-size:16px
}
.checkbox{display:flex;align-items:center;gap:10px}
.result{display:grid;gap:10px}
.result-label{color:var(--accent2);font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:12px}
.result-value{font-size:40px;font-weight:800}
.result-meta,.muted{color:var(--muted)}
.notice{padding:14px;border-radius:14px}
.notice.error{background:#5b2031;color:#ffd7e2;border:1px solid #8f4159}
.ad-slot{
  margin-top:18px;border:1px dashed rgba(159,211,255,.3);border-radius:18px;padding:20px;text-align:center;color:var(--muted);min-height:92px;
  display:flex;align-items:center;justify-content:center
}
.site-footer{border-top:1px solid rgba(121,167,255,.18);margin-top:24px}
@media (max-width: 860px){
  .hero,.page-grid{grid-template-columns:1fr}
  h1{font-size:40px}
  .brand{font-size:28px}
}

.hidden-block{display:none !important;}
.hero section{margin-bottom:0;}
section{margin-bottom:28px;}
.ad-slot.large{min-height:240px;}
.card:hover{border-color:var(--accent);transform:translateY(-2px);transition:.2s ease;}


textarea, pre.result-box{
  width:100%;background:#152a52;color:var(--text);border:1px solid var(--line);
  border-radius:14px;padding:14px;font-size:16px;font-family:inherit;
}
textarea[readonly]{opacity:.95}
.result-box{white-space:pre-wrap;overflow:auto;max-height:520px}
.stats-grid,.checks-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.stat-card{background:#152a52;border:1px solid var(--line);border-radius:16px;padding:16px;display:grid;gap:6px}
.stat-card strong{font-size:28px}.stat-card span{color:var(--muted)}
.upload-box{position:relative;border:1.5px dashed rgba(159,211,255,.35);background:#142850;border-radius:18px;min-height:146px;overflow:hidden;transition:.2s ease;cursor:pointer}
.upload-box:hover,.upload-box.is-dragover{border-color:var(--accent);transform:translateY(-1px);box-shadow:0 0 0 4px rgba(121,167,255,.08)}
.upload-input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.upload-inner{display:grid;place-items:center;text-align:center;gap:10px;padding:24px;min-height:146px}
.upload-icon{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:rgba(121,167,255,.15);font-size:26px;color:var(--accent2)}
.upload-title{font-size:18px;font-weight:700}
.upload-subtitle{color:var(--muted);word-break:break-word}
.upload-progress{width:min(320px,100%);height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;opacity:0;transform:translateY(4px);transition:.2s ease}
.upload-progress span{display:block;height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .25s ease}
.upload-box.has-file .upload-progress{opacity:1;transform:none}
.upload-box.is-loaded .upload-progress span{width:100%}
@media (max-width: 860px){.stats-grid,.checks-grid{grid-template-columns:1fr}}

.upload-box.is-submitting .upload-progress{opacity:1;transform:none}
.upload-box.is-submitting .upload-progress span{width:35% !important;animation:uploadIndeterminate 1.2s ease-in-out infinite}
.upload-box.is-submitting .upload-title{opacity:.9}
@keyframes uploadIndeterminate{
  0%{transform:translateX(-120%);width:28%}
  50%{transform:translateX(75%);width:42%}
  100%{transform:translateX(220%);width:28%}
}

.section-title{display:flex;align-items:center;gap:10px}
.section-icon{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:rgba(121,167,255,.12);font-size:18px}
.card h3{display:flex;align-items:center;gap:8px}