/* ============================================================
   Website Sniffer — SEOWebChecker.com
   Design tokens
   ============================================================ */
:root{
  --bg:#0A0E12;
  --surface:#121821;
  --surface-2:#171F2A;
  --border:#232C38;
  --text:#E9EEF3;
  --muted:#8CA0B3;
  --accent:#35E1A1;      /* signal green */
  --accent-dim:#1E7A5C;
  --amber:#FFB454;       /* stat / warning */
  --blue:#5AA9FF;
  --danger:#FF6B6B;
  --radius:10px;
  --radius-lg:16px;
  --font-display:'Outfit',sans-serif;
  --font-body:'Inter',sans-serif;
  --mono:'Consolas',ui-monospace,SFMono-Regular,Menlo,monospace;
  --shadow:0 8px 30px rgba(0,0,0,.35);
  --maxw:1180px;
}

html[data-theme="light"]{
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --surface-2:#EEF2F6;
  --border:#DCE3EA;
  --text:#101820;
  --muted:#5B6B7A;
  --shadow:0 8px 24px rgba(20,30,40,.08);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  transition:background .25s ease,color .25s ease;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{font-family:var(--font-display);margin:0;line-height:1.15;letter-spacing:-.01em}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{animation-duration:.001ms !important;transition-duration:.001ms !important}}

.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:76px 0}
.section-head{max-width:640px;margin:0 0 40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font:600 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(53,225,161,.15)}
.section-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:600}
.section-head p{color:var(--muted);margin-top:12px;font-size:16px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:8px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:transform .15s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#062018}
.btn-primary:hover{background:#4FF0B3}
.btn-outline{background:transparent;border-color:var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

/* ============================================================
   Header
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:200;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:19px}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px rgba(53,225,161,.15)}
.brand small{display:block;font-family:var(--mono);font-weight:400;font-size:10.5px;color:var(--muted);letter-spacing:.06em}

.nav-links{display:flex;align-items:center;gap:28px}
.nav-links > li{position:relative}
.nav-links a.top-link{font-size:14.5px;font-weight:500;color:var(--text);padding:8px 0;display:inline-block}
.nav-links a.top-link:hover{color:var(--accent)}

.has-dropdown > button.top-link{
  background:none;border:none;color:var(--text);font:inherit;font-size:14.5px;font-weight:500;
  display:flex;align-items:center;gap:6px;cursor:pointer;padding:8px 0;
}
.has-dropdown > button.top-link:hover{color:var(--accent)}
.caret{width:9px;height:9px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-top:-3px;transition:transform .2s ease}
.has-dropdown.open .caret{transform:rotate(-135deg);margin-top:3px}

.dropdown{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(6px);
  width:340px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:10px;display:grid;grid-template-columns:1fr 1fr;gap:2px;
  opacity:0;visibility:hidden;transition:opacity .18s ease,transform .18s ease,visibility .18s;
  max-height:70vh;overflow:auto;
}
.has-dropdown.open .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown a{display:block;padding:9px 10px;border-radius:7px;font-size:13.2px;color:var(--muted)}
.dropdown a:hover{background:var(--surface-2);color:var(--accent)}

.nav-actions{display:flex;align-items:center;gap:10px}
.theme-toggle{
  width:40px;height:40px;border-radius:8px;border:1px solid var(--border);background:var(--surface);
  color:var(--text);display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.theme-toggle:hover{border-color:var(--accent)}
.theme-toggle svg{width:18px;height:18px}
html[data-theme="light"] .icon-moon{display:block}
html[data-theme="light"] .icon-sun{display:none}
.icon-moon{display:none}
.icon-sun{display:block}

.hamburger{display:none;width:40px;height:40px;border-radius:8px;border:1px solid var(--border);background:var(--surface);cursor:pointer;position:relative}
.hamburger span{position:absolute;left:9px;right:9px;height:2px;background:var(--text);transition:.2s}
.hamburger span:nth-child(1){top:14px}
.hamburger span:nth-child(2){top:19px}
.hamburger span:nth-child(3){top:24px}
.hamburger.open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb{padding:14px 0;border-bottom:1px solid var(--border)}
.breadcrumb ol{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--muted);flex-wrap:wrap}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:var(--border)}
.breadcrumb li[aria-current]{color:var(--text)}

/* ============================================================
   Hero + Sniffer tool
   ============================================================ */
.hero{position:relative;padding:64px 0 40px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(32px,4.6vw,52px);font-weight:700}
.hero h1 .accent{color:var(--accent)}
.hero p.lead{margin-top:18px;color:var(--muted);font-size:17px;max-width:520px}
.hero-cta{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.hero-stats{display:flex;gap:28px;margin-top:36px;flex-wrap:wrap}
.hero-stats div strong{display:block;font-family:var(--font-display);font-size:22px;color:var(--accent)}
.hero-stats div span{font-size:12.5px;color:var(--muted)}

/* Signature element: live packet stream */
.stream{
  position:relative;height:280px;border:1px solid var(--border);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,var(--surface),var(--surface-2));overflow:hidden;box-shadow:var(--shadow);
}
.stream::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--border) 1px, transparent 1px),linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size:28px 28px;opacity:.35;
}
.stream-scan{position:absolute;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);top:0;animation:scan 3.4s linear infinite;box-shadow:0 0 14px 1px var(--accent)}
@keyframes scan{0%{top:2%}100%{top:96%}}
.stream-lane{position:absolute;left:-160px;display:flex;align-items:center;gap:8px;white-space:nowrap;animation:flow linear infinite}
.chip{
  font:600 11.5px/1 var(--mono);padding:7px 11px;border-radius:20px;border:1px solid var(--border);
  background:var(--surface);color:var(--muted);letter-spacing:.03em;
}
.chip.on{color:#062018;background:var(--accent);border-color:var(--accent)}
.chip.amber{color:#241300;background:var(--amber);border-color:var(--amber)}
@keyframes flow{from{transform:translateX(0)}to{transform:translateX(calc(100% + 200px))}}

.tool-panel{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow);
}
.tool-panel h3{font-size:16px}
.url-row{display:flex;gap:10px;margin-top:16px}
.url-row input[type="url"]{
  flex:1;min-width:0;padding:13px 14px;border-radius:8px;border:1px solid var(--border);
  background:var(--surface-2);color:var(--text);font-size:14.5px;font-family:var(--mono);
}
.url-row input[type="url"]:focus{border-color:var(--accent)}
.field-msg{min-height:18px;font-size:12.5px;margin-top:8px;color:var(--muted)}
.field-msg.error{color:var(--danger)}
.field-msg.ok{color:var(--accent)}

.type-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px}
.type-opt{
  display:flex;align-items:center;gap:8px;font-size:12.8px;color:var(--muted);
  border:1px solid var(--border);border-radius:8px;padding:9px 10px;cursor:pointer;background:var(--surface-2);
}
.type-opt input{accent-color:var(--accent)}
.type-opt.checked{color:var(--text);border-color:var(--accent)}

.tool-actions{display:flex;gap:10px;margin-top:18px;align-items:center}
.tool-note{font-size:12px;color:var(--muted);margin-top:12px;display:flex;gap:6px;align-items:flex-start}

/* ============================================================
   Results
   ============================================================ */
#results{padding-top:20px}
.results-shell{display:none}
.results-shell.show{display:block}
.results-summary{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:24px;
}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.stat-card span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-family:var(--mono)}
.stat-card strong{display:block;margin-top:6px;font-family:var(--font-display);font-size:24px;color:var(--accent)}

.results-table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}
.results-table-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:16px 20px;border-bottom:1px solid var(--border)}
.results-table-head #downloadAllBtn{padding:9px 16px;font-size:13.5px}
.results-table-head h3{font-size:16px}
table.sniff-table{width:100%;border-collapse:collapse;font-size:13.5px}
table.sniff-table th{
  text-align:left;padding:12px 20px;color:var(--muted);font-weight:600;font-size:12px;
  text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);
}
table.sniff-table td{padding:11px 20px;border-bottom:1px solid var(--border);vertical-align:middle}
table.sniff-table tr:last-child td{border-bottom:none}
.type-pill{font:600 11px/1 var(--mono);padding:5px 9px;border-radius:6px;background:var(--surface-2);border:1px solid var(--border)}
.res-url{color:var(--blue);font-family:var(--mono);font-size:12.4px;word-break:break-all}
.res-url:hover{text-decoration:underline}
.status-ok{color:var(--accent)}
.status-bad{color:var(--danger)}
.empty-state{padding:40px 20px;text-align:center;color:var(--muted)}
.error-banner{
  background:rgba(255,107,107,.08);border:1px solid rgba(255,107,107,.35);color:var(--danger);
  padding:14px 18px;border-radius:10px;font-size:14px;margin-bottom:20px;
}
.skeleton{position:relative;overflow:hidden;background:var(--surface-2);border-radius:6px}
.skeleton::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);animation:shine 1.3s infinite}
@keyframes shine{from{transform:translateX(-100%)}to{transform:translateX(100%)}}

/* ============================================================
   Related tools grid
   ============================================================ */
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.tool-card{
  border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:15px 16px;
  font-size:13.6px;font-weight:500;transition:border-color .18s,transform .18s;
}
.tool-card:hover{border-color:var(--accent);transform:translateY(-2px);color:var(--accent)}

/* ============================================================
   Features / How it works / FAQ / CTA
   ============================================================ */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px}
.feature-card .ic{width:38px;height:38px;border-radius:9px;background:rgba(53,225,161,.12);color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.feature-card h4{font-size:16.5px;margin-bottom:8px}
.feature-card p{color:var(--muted);font-size:14px}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px;position:relative}
.step .num{font-family:var(--mono);color:var(--accent);font-size:12.5px;letter-spacing:.08em}
.step h4{margin-top:10px;font-size:15.5px}
.step p{color:var(--muted);font-size:13.6px;margin-top:6px}

.about-copy{max-width:820px;color:var(--muted);font-size:15.5px;line-height:1.8}
.about-copy strong{color:var(--text)}

.faq-item{border-bottom:1px solid var(--border)}
.faq-q{width:100%;text-align:left;background:none;border:none;color:var(--text);padding:20px 0;font-size:15.5px;font-weight:600;display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.faq-q .plus{width:18px;height:18px;position:relative;flex:none}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--accent);top:50%;left:50%;transform:translate(-50%,-50%)}
.faq-q .plus::before{width:14px;height:2px}
.faq-q .plus::after{width:2px;height:14px;transition:transform .2s ease}
.faq-item.open .plus::after{transform:translate(-50%,-50%) rotate(90deg) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{color:var(--muted);font-size:14.5px;padding-bottom:18px;max-width:760px}

.cta{
  background:linear-gradient(135deg,var(--surface),var(--surface-2));border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:48px;text-align:center;
}
.cta h2{font-size:clamp(24px,3vw,32px)}
.cta p{color:var(--muted);margin-top:10px}
.cta-actions{display:flex;gap:12px;justify-content:center;margin-top:24px;flex-wrap:wrap}

/* ============================================================
   Footer
   ============================================================ */
.site-footer{border-top:1px solid var(--border);padding:56px 0 24px;background:var(--surface)}
.footer-grid{display:grid;grid-template-columns:1.3fr repeat(4,1fr);gap:28px}
.footer-brand p{color:var(--muted);font-size:13.6px;margin-top:12px;max-width:280px}
.footer-col h5{font-size:12.5px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-bottom:14px;font-family:var(--mono)}
.footer-col a{display:block;font-size:13.4px;color:var(--text);padding:5px 0}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  border-top:1px solid var(--border);margin-top:40px;padding-top:22px;font-size:12.8px;color:var(--muted);
}
.footer-legal{display:flex;gap:16px;flex-wrap:wrap}
.footer-legal a:hover{color:var(--accent)}
.disclaimer{font-size:12px;color:var(--muted);max-width:900px;margin-top:10px;line-height:1.6}

/* ============================================================
   Cookie banner
   ============================================================ */
.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:500;max-width:640px;margin:0 auto;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:18px 20px;box-shadow:var(--shadow);display:flex;gap:16px;align-items:center;flex-wrap:wrap;
  transform:translateY(140%);transition:transform .35s ease;
}
.cookie-banner.show{transform:translateY(0)}
.cookie-banner p{font-size:13px;color:var(--muted);flex:1;min-width:220px}
.cookie-banner a{color:var(--accent)}
.cookie-actions{display:flex;gap:8px}
.cookie-actions button{padding:9px 16px;font-size:13px;border-radius:7px}

.skip-link{
  position:absolute;left:-999px;top:0;background:var(--accent);color:#062018;padding:10px 16px;border-radius:0 0 8px 0;z-index:999;
}
.skip-link:focus{left:0}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .features-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .results-summary{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .nav-links{
    position:fixed;top:68px;left:0;right:0;bottom:0;background:var(--bg);border-top:1px solid var(--border);
    flex-direction:column;align-items:stretch;padding:18px 20px;gap:4px;overflow:auto;
    transform:translateX(100%);transition:transform .25s ease;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links > li{width:100%}
  .has-dropdown .dropdown{position:static;transform:none;width:100%;grid-template-columns:1fr;box-shadow:none;display:none;opacity:1;visibility:visible}
  .has-dropdown.open .dropdown{display:grid}
  .hamburger{display:block}
  .type-grid{grid-template-columns:1fr 1fr}
  .features-grid,.steps,.footer-grid,.results-summary{grid-template-columns:1fr}
  .url-row{flex-direction:column}
  .cta{padding:32px 20px}
  table.sniff-table{font-size:12.4px}
  table.sniff-table th,table.sniff-table td{padding:9px 12px}
}
@media (max-width:420px){
  .type-grid{grid-template-columns:1fr}
}

body{max-width:100vw}