:root{
  --bg:#081122;
  --bg-soft:#0e1a31;
  --surface:#ffffff;
  --surface-2:#f6f8fc;
  --surface-3:#eef3ff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#dbe4f0;
  --primary:#5b5cf0;
  --primary-2:#8b5cf6;
  --primary-3:#22c55e;
  --shadow:0 18px 60px rgba(15,23,42,.10);
  --shadow-lg:0 35px 90px rgba(10,20,40,.18);
  --radius:24px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:Inter,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(91,92,240,.12), transparent 28%),
    radial-gradient(circle at top right, rgba(139,92,246,.10), transparent 22%),
    linear-gradient(180deg,#f8fbff 0%,#f4f7fb 50%,#f8fbff 100%);
}
a{text-decoration:none;color:var(--primary)}
a:hover{color:#4647d7}
img{max-width:100%}
.container{width:min(1280px,calc(100% - 40px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:40;
  background:rgba(255,255,255,.84);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(219,228,240,.8);
}
.header-wrap{display:grid;grid-template-columns:auto 1fr auto auto;gap:18px;align-items:center;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--text)}
.brand-mark{display:grid;place-items:center;width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-weight:800;font-size:24px;box-shadow:0 18px 40px rgba(91,92,240,.28)}
.brand-copy strong{display:block;font-size:20px;line-height:1.1}
.brand-copy small{display:block;color:var(--muted);font-size:13px;margin-top:2px}
.main-nav{display:flex;justify-content:center;gap:20px;align-items:center;flex-wrap:wrap}
.main-nav a{color:var(--text);font-weight:700;font-size:15px}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 13px;cursor:pointer}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:16px;padding:14px 22px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-weight:800;box-shadow:0 18px 38px rgba(91,92,240,.22);cursor:pointer;transition:transform .18s ease, box-shadow .18s ease}
.btn:hover{transform:translateY(-1px);color:#fff;box-shadow:0 24px 44px rgba(91,92,240,.28)}
.btn.secondary{background:#fff;color:var(--text);border:1px solid var(--line);box-shadow:none}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text);box-shadow:none}
.btn-small{padding:11px 15px;border-radius:14px;font-size:14px}
.page-hero,.home-hero{position:relative;padding:72px 0 42px}
.page-hero.slim{padding:38px 0 24px}
.premium-hero{padding-top:54px}
.hero-shell{
  display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center;
  background:linear-gradient(135deg,#0b1630 0%,#101c38 52%,#19264a 100%);
  border-radius:32px;padding:36px;border:1px solid rgba(255,255,255,.06);box-shadow:var(--shadow-lg);overflow:hidden;position:relative;
}
.hero-shell::before{content:"";position:absolute;inset:auto -100px -140px auto;width:280px;height:280px;background:radial-gradient(circle, rgba(34,197,94,.20), transparent 62%)}
.hero-shell::after{content:"";position:absolute;inset:-120px auto auto -90px;width:260px;height:260px;background:radial-gradient(circle, rgba(139,92,246,.20), transparent 66%)}
.hero-copy-premium{position:relative;z-index:1}
.hero-copy h1{margin:14px 0 18px;font-size:64px;line-height:1;letter-spacing:-.04em}
.hero-copy-premium h1{color:#fff}
.hero-copy p{margin:0 0 24px;color:var(--muted);font-size:18px;line-height:1.8;max-width:760px}
.hero-copy-premium p{color:rgba(226,232,240,.82)}
.pill,.badge{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#dbe7ff;font-size:13px;font-weight:800;backdrop-filter:blur(4px)}
.section .pill,.tool-card .pill,.category-count,.site-header .pill{background:#edf2ff;color:var(--primary);border-color:#dce7fb}
.card{
  background:rgba(255,255,255,.97);
  border:1px solid rgba(219,228,240,.9);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:24px;
}
.hero-search{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:16px}
.hero-search input,.field,.textarea,.select{
  width:100%;padding:15px 16px;border-radius:16px;border:1px solid var(--line);background:#fff;color:var(--text);font-size:15px;outline:none;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.hero-search-premium input{background:rgba(255,255,255,.95)}
.hero-search input:focus,.field:focus,.textarea:focus,.select:focus{border-color:#b9c8ff;box-shadow:0 0 0 4px rgba(91,92,240,.08)}
.button-row{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
.hero-stats div{padding:16px;border-radius:18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);text-align:center}
.hero-stats strong{display:block;font-size:24px;color:#fff}
.hero-stats span{font-size:13px;color:rgba(226,232,240,.76)}
.hero-visual{position:relative;min-height:420px;display:flex;align-items:center;justify-content:center}
.hero-glow{position:absolute;width:440px;height:440px;border-radius:50%;background:radial-gradient(circle, rgba(91,92,240,.30), transparent 62%);filter:blur(4px)}
.floating-card.large{position:relative;z-index:1;width:min(100%,520px);padding:24px;border-radius:28px;background:rgba(255,255,255,.95);border:1px solid rgba(255,255,255,.55);box-shadow:0 28px 80px rgba(10,20,40,.22)}
.floating-label{display:inline-flex;padding:8px 12px;border-radius:999px;background:#eef2ff;color:var(--primary);font-size:12px;font-weight:800;margin-bottom:16px}
.mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.mini-card{display:flex;flex-direction:column;gap:7px;padding:16px;border-radius:20px;background:linear-gradient(180deg,#ffffff 0%,#f8fbff 100%);border:1px solid #e6edf8;color:var(--text);min-height:120px}
.mini-card:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(15,23,42,.08)}
.mini-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:#eef2ff;font-size:20px}
.mini-card strong{font-size:18px;line-height:1.2}
.mini-card small{color:var(--muted);font-size:13px;line-height:1.5}
.section{padding:30px 0 48px}
.section-tight{padding-top:14px}
.section-soft{background:linear-gradient(180deg,rgba(238,244,255,.72),rgba(238,244,255,0))}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:18px}
.section-head h2{margin:0 0 6px;font-size:36px;letter-spacing:-.03em}
.section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:760px}
.tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.feature-grid-wide{grid-template-columns:repeat(4,minmax(0,1fr))}
.tool-card,.category-box,.feature-box,.info-box{display:block;background:#fff;border:1px solid rgba(219,228,240,.9);border-radius:24px;box-shadow:var(--shadow);padding:22px;color:var(--text);transition:transform .18s ease, box-shadow .18s ease}
.tool-card:hover,.category-box:hover,.feature-box:hover,.info-box:hover{transform:translateY(-3px);box-shadow:0 24px 50px rgba(15,23,42,.12)}
.tool-card-premium{background:linear-gradient(180deg,#ffffff 0%,#fafcff 100%)}
.icon-wrap{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:12px}
.icon{display:grid;place-items:center;width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,#edf3ff,#f6f1ff);font-size:28px}
.tool-card h3,.category-box h3,.feature-box h3,.info-box h3{margin:0 0 10px;font-size:22px;line-height:1.2;letter-spacing:-.02em}
.tool-card p,.category-box p,.feature-box p,.info-box p{margin:0 0 14px;color:var(--muted);line-height:1.72}
.meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:14px;border-top:1px solid #edf2f8;padding-top:12px}
.category-grid,.feature-grid,.info-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.category-count{display:inline-flex;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:800;margin-bottom:12px}
.toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap}
.breadcrumb{color:var(--muted);font-size:14px;margin-bottom:14px}
.breadcrumb a{color:var(--muted)}
.tool-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:start}
.stack-form{display:grid;gap:14px}
.label{font-weight:700;display:grid;gap:8px}
.dropzone{padding:24px;border:2px dashed #b8c7e3;border-radius:22px;background:linear-gradient(180deg,#f9fbff,#f2f7ff)}
.dropzone-title{font-size:18px;font-weight:800;margin-bottom:6px}
.dropzone small,.muted{color:var(--muted)}
.engine-chip{display:inline-flex;padding:10px 12px;border-radius:999px;background:#edf3ff;color:var(--primary);font-weight:700;font-size:13px}
.meta-list{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.meta-list li{display:flex;justify-content:space-between;gap:18px;padding-bottom:12px;border-bottom:1px solid #edf2f8}
.sidebar-tip{margin-top:18px;padding:18px;border-radius:18px;background:linear-gradient(180deg,#f8fbff,#eef4ff);border:1px solid var(--line)}
.sidebar-tip strong{display:block;margin-bottom:8px}
.sidebar-tip p{margin:0;color:var(--muted);line-height:1.65}
.notice{padding:14px 16px;border-radius:16px;margin-bottom:16px}
.notice.success{background:#ecfff4;color:#116b37;border:1px solid #c5f1d8}
.notice.error{background:#fff2f2;color:#aa2f2f;border:1px solid #f3c5c5}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.seo-score{display:flex;gap:18px;align-items:center}
.score-badge{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-size:30px;font-weight:800;box-shadow:0 18px 40px rgba(91,92,240,.25)}
.table-wrap{overflow:auto}
.result-table,.items-table{width:100%;border-collapse:collapse}
.result-table th,.result-table td,.items-table th,.items-table td{padding:13px 12px;border-bottom:1px solid #edf2f8;text-align:left;vertical-align:top}
.items-table input{width:100%;padding:11px;border:1px solid var(--line);border-radius:12px}
.invoice-preview{margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow)}
.invoice-sheet{max-width:840px;margin:0 auto}
.invoice-top{display:flex;justify-content:space-between;gap:18px;border-bottom:2px solid #edf2f8;padding-bottom:14px;margin-bottom:14px}
.invoice-summary{width:320px;margin-left:auto;margin-top:18px}
.invoice-summary div{display:flex;justify-content:space-between;padding:8px 0}
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.kpi{padding:18px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.kpi strong{display:block;font-size:26px;margin-bottom:5px}
.site-footer{background:#0b1328;color:#d7e1ff;padding:58px 0 18px;margin-top:34px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:26px}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.badge.dark{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#d7e1ff}
.site-footer a{color:#d7e1ff}.footer-bottom{padding:20px 0 6px;color:#afbddf;border-top:1px solid rgba(255,255,255,.08);margin-top:24px}.site-footer p{color:#b7c5e7;line-height:1.8}
.print-only{display:none}
.prose p{margin:0 0 14px;color:var(--muted);line-height:1.85}
.two-up{grid-template-columns:1fr 1fr}
.compact h3{font-size:18px}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
pre.code-block{background:#0f172a;color:#e2e8f0;padding:18px;border-radius:16px;overflow:auto}

@media(max-width:1180px){
  .header-wrap{grid-template-columns:auto 1fr auto}
  .header-cta{display:none}
  .hero-shell,.tool-grid,.category-grid,.feature-grid,.info-grid,.footer-grid,.tool-layout,.kpi-row,.feature-grid-wide{grid-template-columns:1fr 1fr}
  .hero-copy h1{font-size:48px}
}
@media(max-width:860px){
  .container{width:min(100%,calc(100% - 24px))}
  .header-wrap{grid-template-columns:auto auto auto}
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;left:12px;right:12px;top:74px;flex-direction:column;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .hero-shell,.tool-grid,.category-grid,.feature-grid,.info-grid,.footer-grid,.tool-layout,.two-col,.hero-stats,.kpi-row,.faq-grid,.feature-grid-wide{grid-template-columns:1fr}
  .hero-copy h1{font-size:38px}
  .hero-copy p{font-size:16px}
  .hero-search{grid-template-columns:1fr}
  .section-head{align-items:flex-start;flex-direction:column}
  .section-head h2{font-size:30px}
  .invoice-top{flex-direction:column}
  .hero-visual{min-height:auto}
  .mini-grid{grid-template-columns:1fr}
}
@media print{.site-header,.site-footer,.button-row,.invoice-form-wrap,.nav-toggle,.header-cta{display:none!important}.invoice-preview{border:none;box-shadow:none;padding:0}.print-only{display:block}}