:root{
  --bg:#f6f7fb; --card:#ffffff; --text:#1d2433; --muted:#667085; --line:#e5e7eb;
  --accent:#2563eb; --accent-dark:#1d4ed8; --accent-2:#eff6ff; --bg-soft:#eef4ff;
  --success:#16a34a; --warning:#f59e0b; --danger:#ef4444; --shadow:0 10px 30px rgba(15,23,42,.08);
  --radius:18px; --max:1180px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:inherit;text-decoration:none}
.wrap{width:min(100% - 32px,var(--max));margin:0 auto}
header{position:sticky;top:0;z-index:10;background:rgba(246,247,251,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:16px}
.brand{font-size:22px;font-weight:700}
.nav-links{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.nav-links a.active{color:var(--accent-dark);font-weight:700}
.hero,.page-hero{padding:40px 0 20px}
.hero-layout,.page-hero-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
.hero-box,.hero-side,.card,.info-box,.visual-card{border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow)}
.hero-box,.page-hero-main{padding:32px;background:linear-gradient(135deg,#fff 0%,#f4f8ff 55%,#eef4ff 100%);position:relative;overflow:hidden}
.hero-box::after,.page-hero-main::after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;background:radial-gradient(circle,rgba(37,99,235,.14) 0%,rgba(37,99,235,0) 72%)}
.hero-side,.page-hero-side{padding:26px;background:linear-gradient(180deg,#0f172a 0%,#172554 100%);color:#fff}
.hero-side p,.page-hero-side p{color:rgba(255,255,255,.82)}
h1{margin:0 0 10px;font-size:clamp(32px,5vw,48px);line-height:1.08}
h2,h3{line-height:1.25}
.lead{margin:0;color:var(--muted);max-width:760px;font-size:18px}
.hero-meta,.hero-flags,.quick-amounts,.legend,.visual-tags{display:flex;gap:10px;flex-wrap:wrap}
.hero-meta{margin-top:18px}
.chip,.flag-pill,.badge,.kpi,.trend,.visual-tag{display:inline-flex;align-items:center;gap:8px;border-radius:999px}
.chip{background:var(--accent-2);color:var(--accent);padding:10px 14px;font-size:14px;font-weight:600}
.flag-pill{background:rgba(255,255,255,.1);padding:9px 12px;font-size:13px;color:#fff}
.visual-tag{background:#fff;color:var(--accent-dark);padding:7px 12px;font-size:12px;font-weight:700;border:1px solid #dbeafe}
.stat-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.stat-box{border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);border-radius:18px;padding:14px}
.stat-box strong{display:block;font-size:22px;margin-bottom:4px}
section{padding:22px 0}
.section-title{font-size:24px;margin:0 0 6px}
.section-sub{margin:0 0 18px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.card,.info-box,.visual-card{background:var(--card);border-radius:18px;padding:18px}
.tool-card{transition:transform .18s ease, box-shadow .18s ease}
.tool-card:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(15,23,42,.12)}
.tool-top,.rate-row,.pair-left,.breadcrumbs{display:flex;align-items:center;gap:10px}
.tool-top,.rate-row{justify-content:space-between}
.tool-icon,.pair-emoji{width:42px;height:42px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center}
.tool-icon{background:var(--accent-2);color:var(--accent-dark);font-size:22px}
.badge{font-size:12px;color:var(--accent-dark);background:var(--accent-2);padding:7px 10px;font-weight:700}
.tool-title{margin:0 0 6px;font-size:20px}
.tool-desc,.small{margin:0;color:var(--muted);font-size:14px}
.converter{display:grid;grid-template-columns:1.2fr .9fr;gap:18px;align-items:start}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
label{display:block;font-size:14px;color:var(--muted);margin-bottom:6px}
input,select,button{width:100%;border-radius:12px;border:1px solid var(--line);padding:14px;font-size:16px;background:#fff}
button{background:var(--accent);color:#fff;border:0;cursor:pointer;font-weight:700}
.result{background:linear-gradient(135deg,#0f172a 0%,#1e3a8a 100%);color:#fff;padding:18px;border-radius:18px;margin-top:14px}
.result small{display:block;opacity:.75;margin-bottom:8px}
.big{font-size:clamp(28px,4vw,36px);font-weight:700;line-height:1.1}
.quick-btn{width:auto;background:#fff;color:var(--text);border:1px solid var(--line);padding:10px 12px;font-size:14px;font-weight:700}
.quick-btn.active{background:var(--accent-2);color:var(--accent-dark);border-color:#bfdbfe}
.mini-note{margin-top:10px;color:var(--muted);font-size:13px}
.list{margin:0;padding-left:18px;color:var(--muted)}
.checklist li{margin-bottom:8px}
.rate-row{padding:12px 0;border-bottom:1px solid var(--line)}
.rate-row:last-child,tr:last-child td{border-bottom:0}
.pair-emoji{background:var(--bg-soft);font-size:18px}
.trend{font-size:13px;font-weight:700;padding:6px 9px}
.trend.up{color:var(--success);background:#ecfdf3}.trend.down{color:var(--danger);background:#fef2f2}.trend.flat{color:var(--warning);background:#fff7ed}
.info-banner{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.search-row{display:grid;grid-template-columns:1fr auto;gap:12px;margin-bottom:18px}
.search-hint{margin-top:10px;color:var(--muted);font-size:13px}
.chart-wrap{background:linear-gradient(180deg,#fff 0%,#f8fbff 100%);border:1px solid var(--line);border-radius:18px;padding:14px;margin-top:14px}
.chart{width:100%;height:220px;display:block}
.legend{margin-top:10px;color:var(--muted);font-size:13px}
.legend-dot{width:10px;height:10px;border-radius:999px;display:inline-block;background:var(--accent)}
.table-box{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;min-width:520px}
th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);font-size:14px}
th{background:#f8fafc;color:var(--muted);font-weight:700}
.breadcrumbs{color:var(--muted);font-size:14px;margin-bottom:12px;flex-wrap:wrap}
.notice{padding:14px 16px;border-radius:14px;background:#fff7ed;color:#9a5b00;border:1px solid #fed7aa}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
footer{padding:28px 0 50px;color:var(--muted)}
.hero-visual,.page-visual{padding:0;overflow:hidden}
.hero-visual svg,.page-visual svg{display:block;width:100%;height:100%}
.media-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.mini-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow)}
@media (max-width:920px){
  .hero-layout,.page-hero-layout,.converter,.grid-3,.grid-2,.info-banner,.media-grid{grid-template-columns:1fr}
  .grid{grid-template-columns:repeat(2,1fr)} .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:580px){
  .nav{align-items:flex-start;flex-direction:column}.grid,.footer-grid,.form-row,.search-row{grid-template-columns:1fr}
  .hero-box,.hero-side,.page-hero-main,.page-hero-side{padding:22px}
}