:root{
  --bg:#f4f7fb;--surface:#fff;--surface-2:#f8fafc;--border:#e2e8f0;
  --text:#0b1220;--muted:#64748b;--blue:#2563eb;--blue-dark:#1d4ed8;
  --blue-light:#eff6ff;--radius:14px;--shadow:0 4px 24px rgba(15,23,42,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;
  display:flex;flex-direction:column;-webkit-font-smoothing:antialiased}
main{flex:1}
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 20px}

.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px;position:relative}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--text);text-decoration:none;letter-spacing:-.3px}
.logo-icon{width:34px;height:34px;background:var(--blue);border-radius:9px;display:grid;place-items:center;color:#fff;font-size:17px}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{color:var(--muted);text-decoration:none;font-size:14.5px;font-weight:500;padding:8px 14px;border-radius:8px;transition:.15s}
.nav-links a:hover{color:var(--text);background:var(--surface-2)}
.nav-links a.active{color:var(--blue);background:var(--blue-light)}
.nav-cta{background:var(--blue)!important;color:#fff!important;font-weight:600!important}
.nav-cta:hover{background:var(--blue-dark)!important}
.menu-toggle{display:none;background:none;border:1px solid var(--border);border-radius:8px;padding:7px 11px;font-size:17px;cursor:pointer;color:var(--text)}

.hero{padding:68px 0 56px;text-align:center}
.hero .eyebrow{display:inline-block;background:var(--blue-light);color:var(--blue);font-size:12.5px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;padding:6px 14px;border-radius:999px;margin-bottom:20px}
.hero h1{font-size:clamp(30px,5vw,48px);line-height:1.14;letter-spacing:-1.4px;font-weight:800;margin-bottom:18px}
.hero h1 .accent{color:var(--blue)}
.hero p{color:var(--muted);font-size:17px;max-width:640px;margin:0 auto 30px}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:10px;font-size:15px;font-weight:600;font-family:inherit;border:1px solid transparent;cursor:pointer;text-decoration:none;transition:.15s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark)}
.btn-outline{background:var(--surface);color:var(--text);border-color:var(--border)}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed}

section{padding:52px 0}
.section-head{text-align:center;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,3.4vw,34px);letter-spacing:-1px;font-weight:800;margin-bottom:10px}
.section-head p{color:var(--muted);max-width:600px;margin:0 auto}

.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:20px}
.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-decoration:none;color:inherit;transition:.18s;display:block;position:relative}
.tool-card:hover{border-color:var(--blue);box-shadow:var(--shadow);transform:translateY(-3px)}
.tool-icon{width:46px;height:46px;border-radius:11px;background:var(--blue-light);color:var(--blue);display:grid;place-items:center;font-size:21px;margin-bottom:15px}
.tool-card h3{font-size:16.5px;font-weight:700;margin-bottom:6px;letter-spacing:-.2px}
.tool-card p{color:var(--muted);font-size:13.8px;line-height:1.55}
.tool-card .tag{position:absolute;top:20px;right:20px;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--blue);background:var(--blue-light);padding:3px 9px;border-radius:999px}
.tool-card .tag.coming{color:#b45309;background:#fef3c7}

.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.panel-narrow{max-width:700px;margin:0 auto}

.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px}
.field .hint{font-size:12.5px;color:var(--muted);font-weight:400}
input[type=text],input[type=email],input[type=url],input[type=number],input[type=password],select,textarea{
  width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:9px;font-size:14.5px;font-family:inherit;background:var(--surface);color:var(--text);transition:.15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
textarea{resize:vertical;min-height:140px;font-family:ui-monospace,'SF Mono',Menlo,Consolas,monospace}
.row{display:flex;gap:14px}
.row>*{flex:1}

.dropzone{border:2px dashed var(--border);border-radius:var(--radius);padding:34px 20px;text-align:center;cursor:pointer;background:var(--surface-2);transition:.18s}
.dropzone:hover,.dropzone.dragover{border-color:var(--blue);background:var(--blue-light)}
.dropzone-icon{font-size:32px;margin-bottom:10px}
.dropzone strong{display:block;font-size:15px;margin-bottom:4px}
.dropzone span{font-size:13px;color:var(--muted)}
.dropzone input[type=file]{display:none}

.alert{padding:13px 17px;border-radius:10px;font-size:14px;margin-bottom:20px;border:1px solid;display:flex;gap:10px;align-items:flex-start}
.alert-success{background:#f0fdf4;border-color:#bbf7d0;color:#15803d}
.alert-error{background:#fef2f2;border-color:#fecaca;color:#b91c1c}
.alert-info{background:var(--blue-light);border-color:#bfdbfe;color:var(--blue-dark)}

.result{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:22px;margin-top:22px}
.result h3{font-size:16px;margin-bottom:14px}

.breadcrumb{font-size:13.5px;color:var(--muted);padding:22px 0 0}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--blue)}

.tool-hero{text-align:center;margin-bottom:34px}
.tool-hero h1{font-size:clamp(26px,4vw,38px);letter-spacing:-1px;font-weight:800;margin-bottom:10px}
.tool-hero p{color:var(--muted);max-width:640px;margin:0 auto}
.tool-icon-lg{width:64px;height:64px;border-radius:16px;background:var(--blue-light);color:var(--blue);display:grid;place-items:center;font-size:30px;margin:0 auto 18px}

.site-footer{margin-top:auto;background:var(--text);color:#94a3b8;padding:48px 0 26px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;margin-bottom:34px}
.site-footer .logo{color:#fff;margin-bottom:12px}
.site-footer p{font-size:13.5px;line-height:1.65}
.site-footer h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.7px;margin-bottom:14px;font-weight:700}
.site-footer ul{list-style:none;display:grid;gap:9px}
.site-footer a{color:#94a3b8;text-decoration:none;font-size:13.5px;transition:.15s}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid #1e293b;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px}

.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-overlay{display:none;position:fixed;inset:0;background:rgba(11,18,32,.62);z-index:999;place-items:center;backdrop-filter:blur(2px)}
.loading-overlay.show{display:grid}
.loading-box{background:#fff;border-radius:14px;padding:30px 44px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.loading-box .spinner{width:34px;height:34px;border-width:3px;border-color:#dbeafe;border-top-color:var(--blue);margin-bottom:14px}
.loading-box p{font-weight:600;font-size:15px}
.loading-box small{color:var(--muted)}

.radio-grid{display:grid;gap:10px}
.radio-card{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--border);border-radius:10px;cursor:pointer;transition:.15s;background:var(--surface)}
.radio-card:hover{border-color:var(--blue);background:var(--blue-light)}
.radio-card input{width:auto;accent-color:var(--blue)}
.radio-card .meta{font-size:12.5px;color:var(--muted)}
.radio-card .label{font-weight:600;font-size:14.5px}

.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.feature{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.feature h3{font-size:16px;margin-bottom:7px}
.feature p{color:var(--muted);font-size:14px}
.muted{color:var(--muted)}
.small{font-size:13px}
.mt-1{margin-top:10px}.mt-2{margin-top:20px}.mb-2{margin-bottom:20px}
.text-center{text-align:center}
.stat-row{display:flex;gap:30px;flex-wrap:wrap;justify-content:center;margin-top:34px}
.stat{text-align:center}
.stat strong{display:block;font-size:28px;font-weight:800;color:var(--blue);letter-spacing:-1px}
.stat span{font-size:13px;color:var(--muted)}
.file-item{display:flex;justify-content:space-between;align-items:center;padding:9px 13px;background:var(--surface-2);border:1px solid var(--border);border-radius:9px;margin-bottom:8px;font-size:13.5px}
code{background:#f1f5f9;padding:2px 6px;border-radius:5px;font-size:13px;font-family:ui-monospace,Menlo,Consolas,monospace}
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:34px}
.filter-bar a{padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:600;text-decoration:none;color:var(--muted);background:var(--surface);border:1px solid var(--border);transition:.15s}
.filter-bar a:hover{border-color:var(--blue);color:var(--blue)}
.filter-bar a.active{background:var(--blue);color:#fff;border-color:var(--blue)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--border)}
th{font-size:12.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);font-weight:700}
tr:last-child td{border-bottom:none}

@media(max-width:760px){
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px;border-bottom:1px solid var(--border);gap:4px;box-shadow:var(--shadow)}
  .nav-links.open{display:flex}
  .menu-toggle{display:block}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .row{flex-direction:column;gap:0}
  .panel{padding:22px}
}