:root{--ink:#0B1220;--surface:#101B2D;--surface-2:#16233A;--border:#243450;--accent:#17B8A6;--accent-dark:#0E8C7E;--warn:#FF7A45;--text:#EAF0F7;--text-dim:#9FB0C7;--bg:#0B1220;--card:#101B2D;--radius:14px;--radius-sm:8px;--shadow:0 10px 30px rgba(0,0,0,.35);--font-display:'Outfit',sans-serif;--font-body:'Inter',sans-serif;--maxw:1240px}
[data-theme="light"]{--ink:#0B1220;--surface:#FFFFFF;--surface-2:#F2F6FA;--border:#E1E8F0;--accent:#0E9C8C;--accent-dark:#0B7A6E;--warn:#E0632A;--text:#101828;--text-dim:#5B6B82;--bg:#F6F9FC;--card:#FFFFFF;--shadow:0 10px 30px rgba(16,32,64,.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);font-size:16px;line-height:1.6;overflow-x:hidden;transition:background .25s ease,color .25s ease}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-display);margin:0 0 .5em;line-height:1.15;letter-spacing:-.01em}
p{margin:0 0 1em}
button{font-family:inherit}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px;width:100%}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Skip link */
.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#04231F;padding:10px 16px;z-index:999;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

/* Top utility bar */
.topbar{background:var(--surface-2);border-bottom:1px solid var(--border);font-size:12.5px;color:var(--text-dim)}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar-links a{margin-left:16px}
.topbar-links a:hover{color:var(--accent)}

/* Header */
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-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:19px;white-space:nowrap}
.brand-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));display:flex;align-items:center;justify-content:center;color:#04231F;font-weight:800;font-size:15px;flex:none}
.brand small{display:block;font-size:10.5px;color:var(--text-dim);font-weight:500;letter-spacing:.04em}
nav.primary-nav{display:flex;align-items:center;gap:4px}
nav.primary-nav>ul{list-style:none;display:flex;gap:2px;margin:0;padding:0;align-items:center}
nav.primary-nav>ul>li{position:relative}
nav.primary-nav>ul>li>a,nav.primary-nav>ul>li>button.nav-toggle{display:flex;align-items:center;gap:6px;padding:10px 14px;border:0;background:none;color:var(--text);font-size:14.5px;font-weight:500;cursor:pointer;border-radius:8px}
nav.primary-nav>ul>li>a:hover,nav.primary-nav>ul>li>button.nav-toggle:hover{background:var(--surface-2);color:var(--accent)}
.chev{width:10px;height:10px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin-top:-3px;transition:transform .2s}
li.has-mega[data-open="true"] .chev{transform:rotate(-135deg);margin-top:3px}
.mega{position:absolute;top:100%;left:50%;transform:translateX(-50%);width:min(880px,92vw);background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;display:none;grid-template-columns:repeat(3,1fr);gap:6px 22px;z-index:300}
li.has-mega[data-open="true"] .mega{display:grid}
.mega-col-title{font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);font-weight:700;margin:10px 0 6px;grid-column:1/-1}
.mega a.mega-link{padding:8px 10px;border-radius:8px;font-size:13.6px;color:var(--text-dim)}
.mega a.mega-link:hover{background:var(--surface-2);color:var(--text)}
.header-actions{display:flex;align-items:center;gap:10px}
.theme-toggle{width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;flex:none}
.theme-toggle svg{width:18px;height:18px}
.hamburger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:var(--surface-2);cursor:pointer;flex:none;position:relative}
.hamburger span{position:absolute;left:9px;right:9px;height:2px;background:var(--text);border-radius:2px;transition:.2s}
.hamburger span:nth-child(1){top:14px}.hamburger span:nth-child(2){top:19px}.hamburger span:nth-child(3){top:24px}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.cta-btn{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#04231F;font-weight:700;padding:10px 18px;border-radius:9px;font-size:14px;white-space:nowrap;border:0}
.cta-btn:hover{filter:brightness(1.08)}
.btn-outline{border:1px solid var(--border);padding:10px 16px;border-radius:9px;font-weight:600;font-size:14px;background:transparent;color:var(--text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}

/* Breadcrumb */
.breadcrumb{padding:14px 0;font-size:13px;color:var(--text-dim)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{margin:0 8px;opacity:.5}
.breadcrumb [aria-current]{color:var(--text);font-weight:600}

/* Hero */
.hero{padding:28px 0 50px;position:relative}
.hero-grid{display:grid;grid-template-columns:1fr;gap:28px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.07em;background:color-mix(in srgb,var(--accent) 12%, transparent);padding:6px 12px;border-radius:99px;margin-bottom:16px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:clamp(30px,4.6vw,48px);max-width:900px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p.lede{font-size:17.5px;color:var(--text-dim);max-width:680px}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:18px;font-size:13px;color:var(--text-dim)}
.trust-row li{display:flex;align-items:center;gap:7px;list-style:none}
.trust-row svg{width:15px;height:15px;color:var(--accent);flex:none}

/* Tool card */
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-top:26px}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--border);margin-bottom:18px;overflow-x:auto}
.tab-btn{background:none;border:0;padding:12px 16px;font-weight:600;font-size:14.5px;color:var(--text-dim);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap;display:flex;align-items:center;gap:8px}
.tab-btn[aria-selected="true"]{color:var(--accent);border-bottom-color:var(--accent)}
.tab-btn:hover{color:var(--text)}
.tab-panel{display:none}
.tab-panel[data-active="true"]{display:block}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.field .hint{font-size:12.5px;color:var(--text-dim);margin-top:5px}
input[type=url],input[type=text],textarea{width:100%;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;color:var(--text);font-size:14.5px;font-family:inherit}
input:focus,textarea:focus{border-color:var(--accent)}
textarea{min-height:170px;resize:vertical;line-height:1.5}
.error-msg{color:var(--warn);font-size:12.8px;margin-top:6px;display:none;align-items:center;gap:6px}
.error-msg.show{display:flex}
.field.has-error input,.field.has-error textarea{border-color:var(--warn)}
.dropzone{border:2px dashed var(--border);border-radius:var(--radius-sm);padding:30px 16px;text-align:center;cursor:pointer;background:var(--surface-2)}
.dropzone.drag{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 8%, transparent)}
.dropzone svg{width:30px;height:30px;color:var(--accent);margin:0 auto 10px}
.dropzone strong{color:var(--accent)}
.file-info{margin-top:12px;font-size:13.5px;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:10px 12px;display:none;justify-content:space-between;align-items:center}
.file-info.show{display:flex}
.file-info button{background:none;border:0;color:var(--warn);cursor:pointer;font-weight:600;font-size:13px}

.options-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:18px 0}
.opt-block label.opt-title{font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--text-dim);margin-bottom:8px;display:block}
.chip-group{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--border);background:var(--surface-2);padding:8px 13px;border-radius:99px;font-size:13px;cursor:pointer;font-weight:600;color:var(--text-dim)}
.chip input{position:absolute;opacity:0;width:0;height:0}
.chip:has(input:checked){background:color-mix(in srgb,var(--accent) 18%, transparent);border-color:var(--accent);color:var(--accent)}
.exclude-input{display:flex;gap:8px}
.exclude-input input{flex:1}
.exclude-input button{border:1px solid var(--border);background:var(--surface-2);border-radius:8px;padding:0 14px;color:var(--text);cursor:pointer;font-weight:600}
.exclude-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.exclude-tag{background:var(--surface-2);border:1px solid var(--border);border-radius:99px;padding:5px 8px 5px 12px;font-size:12.5px;display:flex;align-items:center;gap:6px}
.exclude-tag button{background:none;border:0;color:var(--text-dim);cursor:pointer;font-size:13px;line-height:1}
.toggle-row{display:flex;align-items:center;justify-content:space-between;background:var(--surface-2);border:1px solid var(--border);padding:10px 14px;border-radius:9px;font-size:13.6px;font-weight:600}
.switch{position:relative;width:40px;height:22px;flex:none}
.switch input{opacity:0;width:0;height:0}
.slider-track{position:absolute;inset:0;background:var(--border);border-radius:99px;cursor:pointer;transition:.2s}
.slider-track::before{content:'';position:absolute;width:16px;height:16px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.switch input:checked+.slider-track{background:var(--accent)}
.switch input:checked+.slider-track::before{transform:translateX(18px)}

.submit-row{display:flex;gap:12px;align-items:center;margin-top:20px;flex-wrap:wrap}
.submit-btn{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#04231F;font-weight:700;padding:13px 26px;border-radius:10px;border:0;cursor:pointer;font-size:15px;display:flex;align-items:center;gap:9px}
.submit-btn:disabled{opacity:.65;cursor:not-allowed}
.spinner{width:16px;height:16px;border:2px solid rgba(4,35,31,.3);border-top-color:#04231F;border-radius:50%;animation:spin .7s linear infinite;display:none}
.submit-btn[data-loading="true"] .spinner{display:inline-block}
.submit-btn[data-loading="true"] .btn-label{display:none}
@keyframes spin{to{transform:rotate(360deg)}}
.form-status{font-size:13px;color:var(--text-dim)}

/* Results */
.results{margin-top:44px;display:none}
.results.show{display:block}
.results-head{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.results-head h2{margin-bottom:4px}
.result-actions{display:flex;gap:10px;flex-wrap:wrap}
.icon-btn{display:flex;align-items:center;gap:7px;border:1px solid var(--border);background:var(--card);padding:9px 14px;border-radius:9px;font-size:13.5px;font-weight:600;cursor:pointer;color:var(--text)}
.icon-btn:hover{border-color:var(--accent);color:var(--accent)}
.icon-btn svg{width:15px;height:15px}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:24px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px}
.stat-card .num{font-family:var(--font-display);font-size:26px;font-weight:700;color:var(--accent)}
.stat-card .lbl{font-size:12.5px;color:var(--text-dim);margin-top:2px}

.readout{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:22px}
.readout h3{font-size:15px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.readout-row{display:grid;grid-template-columns:26px 1fr auto 64px;align-items:center;gap:12px;padding:9px 0;border-bottom:1px solid var(--border);font-size:13.8px}
.readout-row:last-child{border-bottom:0}
.readout-rank{color:var(--text-dim);font-weight:700;font-size:12px}
.readout-word{font-weight:600;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.readout-bar-wrap{background:var(--surface-2);border-radius:6px;height:10px;overflow:hidden;min-width:80px}
.readout-bar{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-dark));border-radius:6px}
.readout-pct{text-align:right;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:700;font-size:13px}
.readout-count{text-align:right;color:var(--text-dim);font-size:12.5px}

.ngram-filter{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.ngram-filter button{border:1px solid var(--border);background:var(--surface-2);padding:8px 14px;border-radius:99px;font-size:13px;font-weight:600;cursor:pointer;color:var(--text-dim)}
.ngram-filter button[aria-pressed="true"]{background:color-mix(in srgb,var(--accent) 18%, transparent);border-color:var(--accent);color:var(--accent)}

.recommend-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;margin-bottom:22px}
.recommend-box h3{font-size:15px;margin-bottom:12px}
.recommend-box ul{margin:0;padding-left:20px}
.recommend-box li{margin-bottom:8px;font-size:14px;color:var(--text-dim)}
.recommend-box li strong{color:var(--text)}
.recommend-box .flag-warn{color:var(--warn)}
.recommend-box .flag-good{color:var(--accent)}

.results-table-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;overflow-x:auto}
table.kw-table{width:100%;border-collapse:collapse;font-size:13.8px;min-width:520px}
table.kw-table th{text-align:left;padding:12px 16px;background:var(--surface-2);color:var(--text-dim);font-size:12px;text-transform:uppercase;letter-spacing:.04em;cursor:pointer;white-space:nowrap}
table.kw-table td{padding:11px 16px;border-top:1px solid var(--border)}
table.kw-table tbody tr:hover{background:var(--surface-2)}
.output-textarea{width:100%;min-height:120px;margin-top:16px;background:var(--surface-2);border:1px solid var(--border);border-radius:9px;padding:14px;font-family:ui-monospace,monospace;font-size:12.8px;color:var(--text-dim)}

/* Tools grid (before features) */
.tools-strip{padding:50px 0 10px}
.section-head{max-width:640px;margin-bottom:30px}
.section-head .eyebrow{margin-bottom:12px}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.tool-chip{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:13px 15px;font-size:13.6px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:8px}
.tool-chip:hover{border-color:var(--accent);color:var(--accent)}
.tool-chip svg{width:14px;height:14px;flex:none;opacity:.6}

/* Features */
.features{padding:64px 0}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.feature-card .ic{width:42px;height:42px;border-radius:11px;background:color-mix(in srgb,var(--accent) 15%, transparent);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.feature-card .ic svg{width:21px;height:21px;color:var(--accent)}
.feature-card h3{font-size:16.5px}
.feature-card p{color:var(--text-dim);font-size:14px;margin:0}

/* How it works */
.how{padding:64px 0;background:var(--surface-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.how-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;counter-reset:step}
.how-step{position:relative;padding-left:0}
.how-step .step-num{font-family:var(--font-display);font-size:34px;font-weight:800;color:var(--accent);opacity:.35;margin-bottom:6px}
.how-step h3{font-size:16px}
.how-step p{color:var(--text-dim);font-size:14px;margin:0}

/* Article */
.article-section{padding:64px 0}
.article-body{max-width:760px}
.article-body p{color:var(--text-dim);font-size:15.5px}
.article-body h2{font-size:26px}
.article-body h3{font-size:19px;margin-top:28px}

/* FAQ */
.faq{padding:64px 0;background:var(--surface-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.faq-list{max-width:800px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden}
.faq-item summary{padding:16px 18px;cursor:pointer;font-weight:600;font-size:14.8px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{width:20px;height:20px;flex:none;position:relative}
.faq-item summary .plus::before,.faq-item summary .plus::after{content:'';position:absolute;background:var(--accent);top:50%;left:50%;transform:translate(-50%,-50%)}
.faq-item summary .plus::before{width:12px;height:2px}
.faq-item summary .plus::after{width:2px;height:12px;transition:.2s}
.faq-item[open] summary .plus::after{opacity:0}
.faq-item .faq-a{padding:0 18px 18px;color:var(--text-dim);font-size:14.3px}

/* CTA */
.cta-section{padding:60px 0}
.cta-box{background:linear-gradient(135deg,var(--surface-2),var(--card));border:1px solid var(--border);border-radius:20px;padding:44px 34px;text-align:center}
.cta-box h2{font-size:clamp(22px,3vw,30px)}
.cta-box p{color:var(--text-dim);max-width:560px;margin:0 auto 22px}
.cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Footer */
footer.site-footer{background:var(--surface-2);border-top:1px solid var(--border);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:24px}
.footer-brand p{color:var(--text-dim);font-size:13.5px}
.footer-col h4{font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);margin-bottom:12px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:13.4px;color:var(--text-dim)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--border);margin-top:36px;padding:20px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;font-size:12.8px;color:var(--text-dim)}
.footer-bottom .legal-links a{margin-left:16px}
.disclaimer{font-size:11.8px;color:var(--text-dim);opacity:.75;padding-bottom:20px;max-width:900px}

/* Cookie banner */
.cookie-banner{position:fixed;bottom:16px;left:16px;right:16px;max-width:560px;margin:0 auto;background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:var(--radius);padding:18px 20px;z-index:500;display:none}
.cookie-banner.show{display:block}
.cookie-banner p{font-size:13px;color:var(--text-dim);margin-bottom:12px}
.cookie-banner .cb-btns{display:flex;gap:10px;justify-content:flex-end}
.cookie-banner .cb-btns button{padding:9px 16px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer}
.cb-accept{background:var(--accent);border:0;color:#04231F}
.cb-dismiss{background:none;border:1px solid var(--border);color:var(--text)}

/* Toast */
.toast{position:fixed;bottom:20px;right:20px;background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);padding:12px 18px;border-radius:10px;font-size:13.6px;z-index:600;opacity:0;transform:translateY(10px);transition:.25s;pointer-events:none}
.toast.show{opacity:1;transform:translateY(0)}

/* Mobile */
@media (max-width:960px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .hamburger{display:block}
  nav.primary-nav{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:var(--bg);border-left:1px solid var(--border);transform:translateX(100%);transition:transform .25s ease;z-index:400;padding:80px 20px 20px;overflow-y:auto}
  nav.primary-nav.open{transform:translateX(0)}
  nav.primary-nav>ul{flex-direction:column;align-items:stretch;width:100%}
  nav.primary-nav>ul>li>a,nav.primary-nav>ul>li>button.nav-toggle{width:100%;justify-content:space-between}
  .mega{position:static;transform:none;width:100%;box-shadow:none;grid-template-columns:1fr;margin-top:4px}
  .nav-scrim{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:350}
  .nav-scrim.show{display:block}
}
@media (max-width:720px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .options-row{grid-template-columns:1fr 1fr}
  .readout-row{grid-template-columns:20px 1fr 46px;grid-template-areas:"rank word pct" "rank bar bar"}
  .readout-count{display:none}
}
@media (max-width:520px){
  .options-row{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .topbar-links a{margin-left:10px}
  .cta-box{padding:30px 18px}
}
@media (prefers-reduced-motion:reduce){*{animation-duration:.001ms !important;transition-duration:.001ms !important}}