:root{--bg:#f7f9fc;--surface:#fff;--surface2:#f2f6fb;--text:#142033;--muted:#68778b;--line:#e2e8f0;--brand:#2563eb;--brand2:#1d4ed8;--shadow:0 10px 30px rgba(15,23,42,.055)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15.5px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}.container{width:min(1120px,calc(100% - 28px));margin-inline:auto}
header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{min-height:64px;display:flex;align-items:center;gap:16px}.logo{font-size:20px;font-weight:900;white-space:nowrap}.desktop-nav{margin-left:auto;display:flex;gap:20px;font-weight:750}.desktop-nav a:hover{color:var(--brand)}.nav-actions{display:flex;gap:7px;margin-left:8px;align-items:center}.icon-btn{width:40px;height:40px;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:11px;display:grid;place-items:center;font-size:19px;cursor:pointer}.menu-btn{display:none}.mobile-nav{border-top:1px solid var(--line);padding:7px 0 12px}.mobile-nav-inner{display:grid;grid-template-columns:1fr 1fr;gap:5px}.mobile-nav a{padding:9px 10px;border-radius:9px;font-weight:750}.mobile-nav a:hover{background:var(--surface2)}.mobile-nav[hidden]{display:none!important}
.hero{padding:38px 0 18px;text-align:center}.home-hero{padding-bottom:12px}.compact-hero{padding-bottom:8px}.hero h1{margin:0 auto 10px;max-width:850px;font-size:clamp(32px,5vw,52px);line-height:1.08;letter-spacing:-1.5px}.hero p{max-width:720px;margin:0 auto;color:var(--muted);font-size:17px}.section{padding:18px 0 34px}.card,.content,.tool{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.card{padding:24px}.content{padding:24px}.home-speed-section{padding-top:10px}.speed{max-width:820px;margin:0 auto;text-align:center}.speed .orb{width:190px;height:190px;margin:0 auto 18px;border:9px solid #dbeafe;border-radius:50%;display:flex;flex-direction:column;justify-content:center;align-items:center;background:radial-gradient(circle at 50% 35%,#fff 0,#f8fbff 65%,#eff6ff 100%)}.orb b{font-size:44px;line-height:1;font-weight:900;letter-spacing:-2px}.orb span{margin-top:5px;color:var(--muted);font-weight:750}.primary{border:0;border-radius:10px;padding:12px 22px;background:var(--brand);color:#fff;font-weight:850;font-size:15px;cursor:pointer;box-shadow:0 8px 18px rgba(37,99,235,.18)}.primary:hover{background:var(--brand2)}.primary:disabled{opacity:.65}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin-top:20px}.metrics>div{padding:12px 8px;background:var(--surface2);border-radius:12px;border:1px solid var(--line)}.metrics b,.metrics small{display:block}.metrics b{font-size:22px;line-height:1.1}.metrics small{color:var(--muted);margin-top:3px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:15px;margin-bottom:14px}.section-head h2,.section h2{font-size:clamp(25px,3.5vw,34px);line-height:1.15;letter-spacing:-.6px;margin:0}.section-link{color:var(--brand);font-weight:800;white-space:nowrap}.category-block{margin-top:20px}.category-block:first-of-type{margin-top:0}.category-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 1px 9px}.category-title h3{margin:0;font-size:19px}.how{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.how>div{background:var(--surface2);border:1px solid var(--line);border-radius:13px;padding:14px}.how b{display:block;margin-bottom:4px}.category-title span{font-size:12px;color:var(--muted);font-weight:750}.tool-grid,.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.tool{display:flex;flex-direction:column;min-width:0;padding:16px;transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease}.tool:hover{transform:translateY(-2px);border-color:#bfd2f7;box-shadow:0 15px 30px rgba(15,23,42,.09)}.tool h3{margin:0 0 5px;font-size:17px;line-height:1.3}.tool p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.55;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}.tool-icon,.tool-icon-image{width:40px;height:40px;border-radius:11px;margin-bottom:12px}.tool-icon{display:grid;place-items:center;background:#eaf1ff;color:var(--brand);font-weight:900}.tool-icon-image{object-fit:cover;background:#eef3fa}.tool-link{display:inline-block;margin-top:auto;padding-top:11px;color:var(--brand);font-weight:850;font-size:14px}.empty-state{text-align:center}.compact-section{padding-top:8px}.guide-grid,.faq-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:15px}.guide-grid>div,.faq-grid>div{background:var(--surface2);border:1px solid var(--line);border-radius:13px;padding:14px}.guide-grid h3,.faq-grid h3{margin:0 0 4px;font-size:16px}.guide-grid p,.faq-grid p,.seo-content p,.seo-content li,.faq p{color:var(--muted)}.guide-grid p,.faq-grid p{margin:0;font-size:13.5px}.sitepage{padding:34px 0}.sitepage .content{max-width:900px;margin:auto}.form{max-width:760px;margin:auto}.form label{display:block;margin:13px 0 5px;font-weight:750}.form input,.form textarea,.form select{width:100%;border:1px solid #d6dee9;background:var(--surface);color:var(--text);border-radius:9px;padding:10px 11px;font:inherit}.form textarea{min-height:145px}
footer{margin-top:18px;background:#111827;color:#dbe4ef;padding:26px 0 12px}.foot{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:22px}.foot b{font-size:17px;color:#fff}.foot p{color:#aebbd0;margin:5px 0 0;font-size:13px;max-width:360px}.foot h3{margin:0 0 5px;color:#fff;font-size:14px}.foot a{display:block;color:#b8c5d5;margin:3px 0;font-size:13px}.copy{border-top:1px solid #293447;margin-top:18px;padding-top:10px;color:#91a1b5;font-size:12px}
.flash{padding:12px 14px;border-radius:10px;background:#e9f8ee;color:#166534;margin-bottom:15px}.error{background:#feecec;color:#991b1b}.admin{display:flex;min-height:100vh}.side{width:245px;flex:0 0 245px;background:#0f172a;color:#fff;padding:18px}.side a{display:block;padding:10px 12px;border-radius:9px;color:#cbd5e1}.side a:hover{background:#1e293b;color:#fff}.adminmain{flex:1;padding:28px;min-width:0}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{background:var(--surface);border:1px solid var(--line);border-radius:15px;padding:18px}.stat b{display:block;font-size:29px}.table{width:100%;border-collapse:collapse;min-width:680px}.table th,.table td{padding:11px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.btn{display:inline-block;border:1px solid #d5deea;border-radius:8px;padding:7px 10px;background:var(--surface)}.btnp{background:var(--brand);color:#fff;border-color:var(--brand)}.editor{width:100%;min-height:180px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.login{min-height:100vh;display:grid;place-items:center;background:var(--bg)}.loginbox{width:min(430px,calc(100% - 30px));background:var(--surface);padding:28px;border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
/* Shared newer admin panel */
.admin-shell{min-height:100vh;background:#f4f7fb;color:#172033}.admin-side{background:#0f172a;color:#dbeafe;padding:22px 18px}.admin-side .brand{font-size:24px;font-weight:900;color:#fff;margin:0 0 22px}.admin-side a{display:block;padding:11px 14px;border-radius:10px;color:#cbd5e1;margin:3px 0;font-weight:650}.admin-side a:hover,.admin-side a.active{background:#1e293b;color:#fff}.admin-main{padding:26px;min-width:0}.admin-top{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:20px}.admin-top h1{margin:0;font-size:30px}.admin-user{color:#64748b}.admin-card{background:#fff;border:1px solid #e2e8f0;border-radius:18px;padding:24px;box-shadow:0 10px 32px rgba(15,23,42,.06);margin-bottom:18px}.admin-card h2{margin-top:0}.admin-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.admin-stat{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:17px}.admin-stat b{display:block;font-size:28px}.admin-stat span{color:#64748b}.admin-table-wrap{overflow:auto}.admin-table{width:100%;border-collapse:collapse;min-width:720px}.admin-table th,.admin-table td{padding:12px;border-bottom:1px solid #e5e7eb;text-align:left;vertical-align:top}.admin-table th{font-size:13px;color:#64748b;text-transform:uppercase}.admin-btn{display:inline-block;padding:8px 12px;border-radius:9px;border:1px solid #d8e0ea;background:#fff;color:#172033;font-weight:750;cursor:pointer}.admin-btn.primary{background:#2563eb;border-color:#2563eb;color:#fff}.admin-btn.danger{color:#b91c1c}.admin-input,.admin-select,.admin-textarea{width:100%;padding:10px 11px;border:1px solid #d7dee8;border-radius:9px;font:inherit;background:#fff;color:#172033}.admin-textarea{min-height:130px;resize:vertical}.admin-label{display:block;font-weight:800;margin:13px 0 6px}.admin-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.admin-full{grid-column:1/-1}.admin-flash{background:#ecfdf3;border:1px solid #bbf7d0;color:#166534;padding:11px 13px;border-radius:9px;margin-bottom:15px}.admin-error{background:#fef2f2;border-color:#fecaca;color:#991b1b}.admin-actions{display:flex;gap:8px;flex-wrap:wrap}.admin-note{color:#64748b;font-size:14px}.admin-list{display:grid;gap:10px}.message-card{border:1px solid #e2e8f0;border-radius:14px;background:#fff;padding:16px}.message-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.message-meta{color:#64748b;font-size:14px}.message-body{white-space:pre-wrap;overflow-wrap:anywhere;margin-top:12px;line-height:1.6}.file-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.file-card{border:1px solid #e2e8f0;border-radius:14px;background:#fff;padding:12px;overflow:hidden}.file-card img{width:100%;height:130px;object-fit:cover;border-radius:9px;background:#f1f5f9}.file-name{font-weight:750;overflow-wrap:anywhere;margin:9px 0 4px}
body.dark{--bg:#09111f;--surface:#111c2d;--surface2:#162337;--text:#edf4ff;--muted:#a8b6c9;--line:#27374e}body.dark header{background:rgba(17,28,45,.96)}body.dark .speed .orb{background:#101b2d;border-color:#284b82}body.dark footer{background:#060d18}
@media(max-width:800px){.desktop-nav{display:none}.nav-actions{margin-left:auto}.menu-btn{display:grid}.container{width:min(100% - 18px,1120px)}.hero{padding:30px 0 14px}.hero h1{font-size:35px}.hero p{font-size:15.5px}.card,.content{padding:18px}.speed .orb{width:175px;height:175px}.orb b{font-size:40px}.metrics{grid-template-columns:repeat(2,1fr)}.tool-grid,.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.how{grid-template-columns:1fr}.tool{padding:13px;border-radius:15px}.tool-icon,.tool-icon-image{width:35px;height:35px;border-radius:9px;margin-bottom:9px}.tool h3{font-size:15.5px}.tool p{font-size:12.5px;line-height:1.45;-webkit-line-clamp:3}.tool-link{font-size:12.5px;padding-top:9px}.category-block{margin-top:17px}.category-title h3{font-size:17px}.guide-grid,.faq-grid{grid-template-columns:1fr}.foot{grid-template-columns:1.4fr 1fr 1fr;gap:14px}.foot a{font-size:12px}.admin-shell{display:block}.admin-side{position:static}.admin-side nav{display:grid;grid-template-columns:1fr 1fr;gap:3px}.admin-side a{margin:0}.admin-main{padding:16px 12px}.admin-grid{grid-template-columns:repeat(2,1fr)}.admin-form-grid{grid-template-columns:1fr}.admin-full{grid-column:auto}.file-grid{grid-template-columns:repeat(2,1fr)}.admin-top h1{font-size:24px}.admin-card{padding:18px}}
@media(max-width:480px){.nav{min-height:60px}.logo{font-size:18px}.icon-btn{width:38px;height:38px}.section-head{align-items:center}.section-head h2{font-size:25px}.section-link{font-size:13px}.foot{grid-template-columns:1.5fr 1fr 1fr}.foot-brand{grid-column:1/-1}.copy{font-size:11px}.admin-grid{grid-template-columns:1fr 1fr}.file-grid{grid-template-columns:1fr}.message-head{display:block}.admin-actions .admin-btn{width:100%;text-align:center}.admin-card{border-radius:15px}}