/* assets/styles.css */
:root{
  --bg: #f7fafc;
  --surface: #ffffff;
  --surface-2:#f0f6ff;
  --text:#0f172a;
  --muted:#475569;
  --border:#e2e8f0;
  --primary:#2563eb;
  --primary-2:#1d4ed8;
  --success:#16a34a;
  --warning:#f59e0b;
  --danger:#ef4444;

  --shadow: 0 10px 30px rgba(2,8,23,0.08);
  --radius: 18px;
  --radius-sm: 12px;

  --container: 1120px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  font-family:var(--font);
  color:var(--text);
  background:
    radial-gradient(900px 600px at 10% 5%, #eaf2ff 0%, transparent 60%),
    radial-gradient(900px 600px at 90% 10%, #e8fff4 0%, transparent 60%),
    var(--bg);
  line-height:1.55;
}

a{ color:var(--primary); text-decoration:none; }
a:hover{ color:var(--primary-2); text-decoration:underline; }

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 16px;
}

.skip-link{
  position:absolute; left:-999px; top:auto;
  width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  left:16px; top:16px; width:auto; height:auto;
  background:var(--surface);
  border:1px solid var(--border);
  padding:10px 12px; border-radius:12px;
  box-shadow:var(--shadow);
  z-index:9999;
}

/* Header */
.header{
  position:sticky; top:0; z-index:100;
  background:rgba(247,250,252,0.8);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid rgba(226,232,240,0.7);
}
.header__bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 0;
  gap:12px;
}
.brand{
  display:flex; align-items:center; gap:10px;
  min-width: 200px;
}
.brand__logo{
  width:38px; height:38px;
  border-radius:12px;
  background:linear-gradient(135deg, #2563eb, #22c55e);
  display:grid; place-items:center;
  box-shadow:0 8px 18px rgba(37,99,235,0.25);
}
.brand__logo svg{ width:22px; height:22px; fill:#fff; }
.brand__title{
  display:flex; flex-direction:column;
  line-height:1.15;
}
.brand__title strong{ font-size:14px; letter-spacing:0.2px; }
.brand__title span{ font-size:12px; color:var(--muted); }

.nav{
  display:flex; align-items:center; gap:10px;
}
.nav__links{
  display:flex; align-items:center; gap:8px;
}
.nav__links a{
  font-size:14px;
  color:var(--text);
  padding:10px 10px;
  border-radius:12px;
}
.nav__links a[aria-current="page"]{
  background:var(--surface);
  border:1px solid var(--border);
  box-shadow:0 8px 18px rgba(2,8,23,0.06);
}
.nav__cta{
  display:flex; align-items:center; gap:10px;
}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  font-weight:600;
  font-size:14px;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text);
  box-shadow:0 10px 20px rgba(2,8,23,0.05);
}
.btn:hover{ text-decoration:none; border-color:#cbd5e1; }
.btn--primary{
  background:linear-gradient(135deg, #2563eb, #1d4ed8);
  border-color:rgba(37,99,235,0.35);
  color:#fff;
  box-shadow:0 14px 30px rgba(37,99,235,0.22);
}
.btn--primary:hover{ filter:brightness(0.98); }
.btn--ghost{
  background:transparent;
  box-shadow:none;
}
.icon{
  width:16px; height:16px; display:inline-block;
}
.menu-btn{
  display:none;
}

/* Hero */
.hero{
  padding:28px 0 10px;
}
.hero__grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap:18px;
  align-items:stretch;
}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.card__pad{ padding:18px; }
.hero__title{
  font-size:34px;
  letter-spacing:-0.6px;
  margin:0 0 10px;
}
.hero__subtitle{
  color:var(--muted);
  margin:0 0 14px;
  font-size:15px;
}
.badges{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:12px 0 0;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  border-radius:999px;
  background:var(--surface-2);
  border:1px solid rgba(37,99,235,0.12);
  color:#0b255f;
  font-size:12px;
  font-weight:600;
}
.hero__actions{
  display:flex; flex-wrap:wrap; gap:10px;
  margin-top:14px;
}
.kpi-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:10px;
}
.kpi{
  padding:14px;
  border-radius:16px;
  border:1px solid var(--border);
  background:linear-gradient(180deg, #ffffff, #fbfdff);
}
.kpi strong{ font-size:18px; display:block; }
.kpi span{ color:var(--muted); font-size:12px; display:block; margin-top:4px; }

/* Sections */
.section{
  padding:14px 0;
}
.section__title{
  font-size:20px;
  margin:0 0 10px;
}
.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:12px;
}
.grid-2{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:12px;
}
.feature{
  padding:16px;
  border-radius:18px;
  border:1px solid var(--border);
  background:rgba(255,255,255,0.85);
}
.feature h3{ margin:0 0 8px; font-size:16px; }
.feature p{ margin:0; color:var(--muted); font-size:14px; }

.notice{
  padding:14px 16px;
  background:rgba(34,197,94,0.10);
  border:1px solid rgba(34,197,94,0.25);
  border-radius:18px;
}
.notice strong{ display:block; margin-bottom:6px; }
.notice p{ margin:0; color:var(--muted); font-size:14px; }

/* Content layout */
.page-head{
  padding:18px 0 6px;
}
.breadcrumbs{
  font-size:13px;
  color:var(--muted);
}
.page-title{
  margin:8px 0 6px;
  font-size:28px;
  letter-spacing:-0.4px;
}
.page-lead{
  margin:0 0 6px;
  color:var(--muted);
  max-width: 80ch;
}

.prose{
  color:var(--text);
  font-size:15px;
}
.prose h2{
  margin:18px 0 8px;
  font-size:18px;
}
.prose h3{
  margin:14px 0 8px;
  font-size:16px;
}
.prose p{ margin:0 0 10px; color:var(--muted); }
.prose ul{ margin:0 0 10px 18px; color:var(--muted); }
.prose li{ margin:6px 0; }
.hr{
  border:0;
  border-top:1px solid var(--border);
  margin:14px 0;
}

.two-col{
  display:grid;
  grid-template-columns: 0.72fr 0.28fr;
  gap:12px;
  align-items:start;
}
.aside{
  position:sticky;
  top:86px;
}
.aside .card__pad{ padding:14px; }
.aside h3{ margin:0 0 10px; font-size:14px; }
.aside a{
  display:block;
  padding:8px 10px;
  border-radius:12px;
  color:var(--text);
  border:1px solid transparent;
}
.aside a:hover{
  background:var(--surface-2);
  border-color:rgba(37,99,235,0.12);
  text-decoration:none;
}
.small{
  font-size:12px;
  color:var(--muted);
}

/* Tables */
.table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  overflow:hidden;
  border-radius:16px;
  border:1px solid var(--border);
  background:var(--surface);
}
.table th, .table td{
  text-align:left;
  padding:12px 12px;
  border-bottom:1px solid var(--border);
  vertical-align:top;
  font-size:14px;
}
.table th{ background:#f8fbff; font-weight:700; }
.table tr:last-child td{ border-bottom:none; }

/* FAQ */
.accordion{
  border:1px solid var(--border);
  border-radius:18px;
  overflow:hidden;
  background:var(--surface);
}
.acc-item + .acc-item{ border-top:1px solid var(--border); }
.acc-btn{
  width:100%;
  padding:14px 14px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  gap:10px;
  font-weight:700;
  color:var(--text);
}
.acc-panel{
  padding:0 14px 14px;
  color:var(--muted);
  display:none;
}
.acc-item[open] .acc-panel{ display:block; }
.chev{ transition:transform .2s ease; }
.acc-item[open] .chev{ transform:rotate(180deg); }

/* Footer */
.footer{
  padding:26px 0 34px;
  margin-top:18px;
  border-top:1px solid rgba(226,232,240,0.7);
  background:rgba(255,255,255,0.55);
  backdrop-filter: blur(10px);
}
.footer__grid{
  display:grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap:14px;
}
.footer h4{ margin:0 0 8px; font-size:14px; }
.footer a{ color:var(--muted); font-size:13px; display:block; padding:6px 0; }
.footer a:hover{ color:var(--text); }
.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  align-items:center;
  margin-top:14px;
  color:var(--muted);
  font-size:12px;
}

/* Search */
.search{
  display:flex; gap:10px; align-items:center; flex-wrap:wrap;
  margin:10px 0 0;
}
.input{
  flex:1;
  min-width: 220px;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,0.9);
  outline:none;
}
.input:focus{
  border-color:rgba(37,99,235,0.45);
  box-shadow:0 0 0 4px rgba(37,99,235,0.12);
}

/* Responsive */
@media (max-width: 980px){
  .hero__grid{ grid-template-columns: 1fr; }
  .two-col{ grid-template-columns: 1fr; }
  .aside{ position:static; }
  .footer__grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px){
  .nav__links{ display:none; }
  .menu-btn{ display:inline-flex; }
  .nav__links.is-open{
    display:flex;
    position:absolute;
    left:16px;
    right:16px;
    top:62px;
    flex-direction:column;
    padding:10px;
    background:rgba(255,255,255,0.92);
    border:1px solid var(--border);
    border-radius:16px;
    box-shadow:var(--shadow);
  }
  .grid-3{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .hero__title{ font-size:28px; }
  .brand{ min-width:auto; }
}