:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --border:#e5e7eb;
  --accent:#2563eb;
  --radius:14px;
  --shadow:0 10px 28px rgba(0,0,0,.06);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  background:var(--bg);
  color:var(--text);
}

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

.container{
  max-width:1100px;
  margin:0 auto;
  padding:18px 18px 46px;
}

/* Header */
.header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(246,247,251,.86);
  backdrop-filter:saturate(1.2) blur(10px);
  border-bottom:1px solid rgba(229,231,235,.7);
}
.header-inner{
  max-width:1100px;
  margin:0 auto;
  padding:14px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:190px;
}
.logo{
  width:34px;height:34px;
  border-radius:12px;
  display:grid;
  place-items:center;
  font-weight:800;
  color:#fff;
  background:var(--text);
}
.badge{
  display:inline-block;
  margin-left:8px;
  font-size:12px;
  padding:2px 8px;
  border-radius:999px;
  border:1px solid var(--border);
  color:var(--muted);
  background:#fff;
}
.nav{
  display:flex;
  gap:14px;
  align-items:center;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.nav a{
  color:var(--muted);
  font-weight:600;
  text-decoration:none;
}
.nav a:hover{color:var(--text)}

/* Layout: Sidebar + Main (100 tools ready) */
.layout{
  display:grid;
  grid-template-columns: 260px 1fr;
  gap:16px;
  align-items:start;
}
@media (max-width: 900px){
  .layout{grid-template-columns:1fr}
}

.sidebar{
  position: sticky;
  top: 88px; /* header height */
}
.main{min-width:0}

.cat-list{
  display:grid;
  gap:10px;
  margin-top:10px;
}
.cat{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:#fff;
  font-weight:800;
  color:var(--text);
}
.cat:hover{background:#f9fafb;text-decoration:none}
.cat small{
  color:var(--muted);
  font-weight:700;
}

/* Cards / hero / tools */
.card{
  background:var(--card);
  border:1px solid rgba(229,231,235,.85);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px;
}
.hero{
  padding:26px;
  border-radius:18px;
  border:1px solid rgba(229,231,235,.8);
  background:linear-gradient(180deg,#ffffff 0%, #fbfbfe 100%);
  box-shadow:var(--shadow);
}
.hero h1{
  font-size:44px;
  letter-spacing:-.02em;
  margin:0 0 8px;
}
.hero p{
  margin:0;
  color:var(--muted);
  line-height:1.6;
  max-width:62ch;
}
.note{
  margin-top:14px;
  padding:10px 12px;
  border-radius:12px;
  border:1px dashed rgba(229,231,235,.9);
  color:var(--muted);
  background:#fff;
}

.section-title{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  margin-bottom:12px;
}
.section-title h2{
  margin:0;
  font-size:20px;
  letter-spacing:-.01em;
}
.hint{
  color:var(--muted);
  font-weight:700;
  font-size:13px;
}

.grid{
  margin-top:16px;
  display:grid;
  gap:16px;
}
.tool-list{
  display:grid;
  gap:12px;
}
.tool{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px;
  border-radius:14px;
  border:1px solid var(--border);
  background:#fff;
}
.tool .left{min-width:0}
.name{
  margin:0;
  font-weight:900;
}
.desc{
  margin:6px 0 0;
  color:var(--muted);
  line-height:1.4;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--text);
  text-decoration:none;
  font-weight:800;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid var(--border);
  background:#fff;
  white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn.primary{
  background:var(--accent);
  color:#fff;
  border-color:transparent;
}
.btn.primary:hover{filter:brightness(.98)}
.btn.disabled{
  opacity:.6;
  pointer-events:none;
}

.ad-slot{
  border:1px dashed rgba(229,231,235,.9);
  border-radius:14px;
  padding:18px;
  color:var(--muted);
  background:#fff;
}

/* Tool page widgets */
.drop{
  border:2px dashed rgba(229,231,235,.9);
  border-radius:16px;
  padding:18px;
  background:#fff;
}
.kv{
  display:grid;
  gap:10px;
}
.row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
}

.progress{
  height:10px;
  background:#eef2ff;
  border-radius:999px;
  overflow:hidden;
  margin-top:10px;
  border:1px solid rgba(37,99,235,.15);
}
.progress > div{
  height:100%;
  width:0%;
  background:var(--accent);
}

/* Footer */
.footer{
  border-top:1px solid rgba(229,231,235,.8);
  margin-top:30px;
  background:transparent;
}
.footer-inner{
  max-width:1100px;
  margin:0 auto;
  padding:18px 18px 26px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  color:var(--muted);
  flex-wrap:wrap;
}
.footer a{color:var(--muted);font-weight:700}
.footer a:hover{color:var(--text)}


.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:10px;}
.breadcrumbs a{color:inherit;text-decoration:none;}
.breadcrumbs a:hover{text-decoration:underline;}