:root{
  --bg:#ffffff;
  --bg-soft:#f7f9fc;
  --bg-blue:#f4f7ff;
  --text:#131a2a;
  --muted:#5e687b;
  --line:#e4e9f2;
  --blue:#2b66f6;
  --blue-2:#1f55df;
  --violet:#6f4bf6;
  --green:#159565;
  --shadow:0 28px 70px rgba(28, 48, 91, .14);
  --shadow-sm:0 12px 32px rgba(31, 54, 93, .10);
  --radius:24px;
  --radius-sm:16px;
  --container:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
section[id]{scroll-margin-top:90px}

.skip-link{
  position:absolute;left:-999px;top:8px;z-index:1000;background:#fff;padding:10px 14px;border-radius:10px;
}
.skip-link:focus{left:8px}

.container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
.narrow{max-width:820px}
.center{text-align:center;margin-left:auto;margin-right:auto}
.section{padding:112px 0}
.section-kicker{
  color:var(--blue);font-size:12px;letter-spacing:.14em;font-weight:800;margin-bottom:18px;
}
.section-kicker.light{color:#cbd8ff}
h1,h2,h3,p{margin-top:0}
h1{
  font-size:clamp(46px,6vw,82px);line-height:1.02;letter-spacing:-.05em;margin-bottom:28px;
}
h1 span,h2 span{color:var(--blue)}
h2{
  font-size:clamp(34px,4.5vw,58px);line-height:1.08;letter-spacing:-.04em;margin-bottom:20px;
}
h3{font-size:22px;letter-spacing:-.02em}
p{color:var(--muted);line-height:1.72;font-size:16px}
.lead{font-size:20px}
.section-heading{max-width:760px;margin:0 auto 58px}
.section-heading p{font-size:18px}

.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.86);backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(228,233,242,.8);
}
.nav-wrap{height:74px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:600}
.brand strong{color:var(--blue)}
.brand-mark{width:32px;height:32px}
.primary-nav{display:flex;align-items:center;gap:30px;font-size:14px;font-weight:600;color:#4d5668}
.primary-nav a:not(.btn):hover{color:var(--text)}
.mobile-menu-btn{display:none;border:0;background:none;padding:8px}
.mobile-menu-btn span{display:block;width:22px;height:2px;background:#222;margin:4px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 22px;border-radius:12px;
  font-size:15px;font-weight:700;border:1px solid transparent;transition:.2s ease;
}
.btn-primary{background:var(--blue);color:white;box-shadow:0 9px 24px rgba(43,102,246,.22)}
.btn-primary:hover{background:var(--blue-2);transform:translateY(-1px)}
.btn-secondary{background:#fff;border-color:var(--line);box-shadow:var(--shadow-sm)}
.btn-secondary:hover{transform:translateY(-1px);border-color:#c9d2e2}
.btn-small{min-height:40px;padding:0 16px;border-radius:10px}
.btn-full{width:100%}

.hero{
  padding-top:86px;padding-bottom:68px;
  background:
    radial-gradient(circle at 50% 0%, rgba(43,102,246,.10), transparent 34%),
    linear-gradient(#fff,#fff);
  overflow:hidden;
}
.hero-inner{text-align:center;max-width:940px}
.eyebrow{display:inline-flex}
.pill{
  padding:8px 12px;border:1px solid #dce5f6;border-radius:999px;background:#fff;color:#5f6c82;font-size:13px;font-weight:700;
}
.hero-copy{font-size:20px;max-width:760px;margin:0 auto 16px}
.trust-line{display:flex;align-items:center;justify-content:center;gap:9px;color:#32405a;font-weight:600;margin-bottom:30px}
.trust-dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(21,149,101,.10)}
.hero-actions{display:flex;justify-content:center;gap:12px;margin-bottom:58px}
.hero-product{position:relative}
.browser-frame{
  background:#fff;border:1px solid #dce4f2;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);
}
.browser-chrome{
  height:42px;display:flex;align-items:center;gap:7px;padding:0 14px;border-bottom:1px solid var(--line);
  background:#fbfcfe;
}
.browser-chrome>span{width:9px;height:9px;border-radius:50%;background:#d3d9e5}
.browser-address{
  margin-left:9px;background:#f0f3f8;border-radius:8px;height:23px;display:flex;align-items:center;padding:0 12px;
  color:#8790a2;font-size:11px;min-width:220px;
}
.hero-frame{transform:perspective(1800px) rotateX(2deg);transform-origin:bottom;position:relative}
.hero-frame img{width:100%}
.hero-fade{
  position:absolute;left:-5%;right:-5%;bottom:-3px;height:25%;pointer-events:none;
  background:linear-gradient(transparent,#fff 92%);
}
.product-badges{
  margin-top:28px;display:flex;align-items:center;justify-content:center;gap:14px;color:#6d7687;font-size:13px;font-weight:700;
}
.product-badges i{width:4px;height:4px;border-radius:50%;background:#c0c8d5}

.problem-section{background:var(--bg-soft)}
.problem-visual{
  margin:42px auto 30px;display:flex;align-items:center;justify-content:center;gap:30px;
}
.problem-stat,.problem-query{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 28px;box-shadow:var(--shadow-sm);
}
.problem-stat strong{display:block;font-size:36px;color:var(--blue)}
.problem-stat span{color:#8b95a7;font-size:13px}
.problem-query{font-size:18px;font-weight:700;color:#38445b}
.problem-arrow{font-size:30px;color:#a9b2c1}
.big-statement{font-size:24px!important;font-weight:700;color:var(--text);margin-top:32px}

.feature-grid{display:grid;gap:22px}
.feature-grid.three{grid-template-columns:repeat(3,1fr)}
.feature-card{
  border:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:28px;min-height:590px;overflow:hidden;
  box-shadow:0 8px 30px rgba(32,49,78,.05);
}
.feature-number{font-size:12px;font-weight:800;color:#9aa4b5;margin-bottom:38px}
.feature-card h3{font-size:30px;margin-bottom:10px}
.feature-card p{min-height:82px}
.extension-shell{
  width:76%;margin:24px auto -120px;border-radius:20px;overflow:hidden;box-shadow:0 22px 55px rgba(34,46,79,.15);border:1px solid #dbe2ec;
}
.detail-crop{
  height:370px;overflow:hidden;border-radius:18px;border:1px solid #e0e5ee;margin-top:24px;background:#f9fafc;
}
.detail-crop img{width:100%;transform:translateY(-28%);min-height:580px;object-fit:cover}
.search-mini{
  margin-top:56px;border:1px solid #d9e1ee;border-radius:14px;padding:15px;background:#fbfcff;position:relative;
}
.fake-search{font-size:13px;color:#30394a}
.match-chip{
  display:inline-flex;margin-top:22px;background:#dff7e8;color:#16814f;padding:6px 9px;border-radius:8px;font-size:12px;font-weight:800;
}
.find-lines{margin-top:26px;display:grid;gap:12px}
.find-lines span{height:78px;border-radius:12px;border:1px solid #e4e9f2;background:linear-gradient(90deg,#f7f9fd,#fff)}
.find-lines span:nth-child(2){width:92%}
.find-lines span:nth-child(3){width:85%}
.find-lines span:nth-child(4){width:74%}

.showcase-section{background:#0f172a;color:white}
.showcase-section p{color:#b7c1d5}
.split{display:grid;grid-template-columns:1fr 1.2fr;gap:70px;align-items:center}
.showcase-copy h2 span{color:#9fb6ff}
.query-examples{display:flex;flex-direction:column;gap:10px;margin-top:30px}
.query-examples button{
  text-align:left;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.07);color:#e6ebf7;
  padding:12px 14px;border-radius:12px;font-size:13px;
}
.query-examples button:hover{background:rgba(255,255,255,.12)}
.showcase-section .browser-frame{box-shadow:0 30px 90px rgba(0,0,0,.36)}
.demo-stage{position:relative;background:#fff}
.demo-stage img{width:100%}
.demo-label{
  position:absolute;right:14px;bottom:14px;background:rgba(17,24,39,.82);color:#fff;border-radius:999px;
  padding:7px 10px;font-size:11px;font-weight:700;backdrop-filter:blur(8px);
}

.qa-section{background:linear-gradient(180deg,#fff,#f7f9ff)}
.qa-frame{max-width:1080px;margin:0 auto}
.qa-frame img{width:100%}

.skills-section{padding-top:90px}
.skills-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.skill-card{
  border:1px solid var(--line);border-radius:22px;padding:26px;min-height:240px;background:#fff;box-shadow:0 8px 24px rgba(31,52,88,.05)
}
.skill-icon{
  width:48px;height:48px;border-radius:14px;background:#eef3ff;color:var(--blue);display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;margin-bottom:30px;
}
.skill-card h3{font-size:20px;margin-bottom:10px}
.skill-card p{font-size:14px}

.privacy-section{
  background:
    linear-gradient(120deg,rgba(43,102,246,.06),rgba(111,75,246,.04)),
    #f7f9fc;
}
.privacy-heading{max-width:900px;margin-bottom:56px}
.architecture{
  display:grid;grid-template-columns:.55fr auto 1.6fr .85fr;align-items:center;gap:22px;background:#fff;border:1px solid var(--line);
  border-radius:28px;padding:44px;box-shadow:var(--shadow-sm);position:relative;
}
.arch-internet,.drive-box{
  border:1px solid #dce3ef;background:#fafbfe;border-radius:15px;padding:16px 20px;text-align:center;font-weight:700;
}
.arch-arrow,.arch-down{text-align:center;color:#92a0b7;font-weight:800}
.arch-device{border:2px solid #dce6ff;background:#f7f9ff;border-radius:22px;padding:24px}
.device-label{font-size:11px;color:#8893a6;font-weight:800;letter-spacing:.12em;text-align:center;margin-bottom:18px}
.arch-box{background:#fff;border:1px solid #dce4f2;border-radius:14px;padding:15px;text-align:center;font-weight:700}
.arch-box.emphasized{border-color:#afc4ff;box-shadow:0 10px 24px rgba(43,102,246,.08)}
.arch-box small{font-weight:500;color:#7c8798}
.arch-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.arch-box.small{font-size:13px}
.arch-sync{display:grid;gap:8px;text-align:center;color:#748096;font-size:12px;font-weight:700}
.no-backend{
  position:absolute;right:34px;bottom:-17px;background:#172036;color:#fff;border-radius:999px;padding:9px 14px;font-size:12px;font-weight:700;
}
.privacy-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:50px}
.privacy-cards article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}
.privacy-icon{
  width:38px;height:38px;border-radius:11px;background:#eef3ff;color:var(--blue);display:flex;align-items:center;justify-content:center;
  font-weight:800;margin-bottom:20px;
}
.privacy-cards h3{font-size:18px}
.privacy-cards p{font-size:14px}
.providers{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:30px}
.providers span{
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;color:#616d80;font-size:12px;font-weight:700;
}

.import-section{background:#fff}
.import-split{grid-template-columns:1.15fr .85fr}
.import-split p{font-size:18px;max-width:620px}
.import-flow{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:28px}
.import-flow span{padding:10px 14px;border-radius:999px;background:#f1f5ff;color:#31559f;font-size:13px;font-weight:700}
.import-flow b{color:#9aa4b3}
.import-stat-card{
  min-height:320px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(145deg,#f7f9ff,#fff);
  display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);
}
.import-stat-card strong{font-size:64px;color:var(--blue);letter-spacing:-.05em}
.import-stat-card span{color:#707b8e}
.bookmark-stack{position:relative;width:74px;height:62px;margin-bottom:20px}
.bookmark-stack div{
  position:absolute;width:48px;height:56px;border-radius:8px 8px 4px 4px;background:#2b66f6;clip-path:polygon(0 0,100% 0,100% 100%,50% 74%,0 100%);
}
.bookmark-stack div:nth-child(1){left:0;opacity:.25}
.bookmark-stack div:nth-child(2){left:13px;opacity:.55}
.bookmark-stack div:nth-child(3){left:26px}

.product-section{background:var(--bg-soft)}
.product-panels{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px}
.product-panel{background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;min-height:650px;box-shadow:0 12px 36px rgba(30,49,80,.06)}
.panel-copy{padding:34px 34px 12px}
.panel-label{font-size:11px;letter-spacing:.12em;color:var(--blue);font-weight:800}
.panel-copy h3{font-size:30px;margin:12px 0 10px}
.extension-large{width:64%;margin:18px auto 0;border-radius:22px;overflow:hidden;border:1px solid #dbe3ef;box-shadow:var(--shadow-sm)}
.manager-preview{margin:26px -120px 0 36px;border:1px solid #dce4ef;border-radius:18px 0 0 0;overflow:hidden;box-shadow:var(--shadow-sm)}
.manager-preview img{width:100%;min-width:840px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chips span{font-size:11px;font-weight:700;color:#59677b;border:1px solid #dfe5ed;border-radius:999px;padding:6px 9px;background:#fbfcfe}
.content-types{
  margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:28px;display:grid;grid-template-columns:.8fr 1.2fr;overflow:hidden;min-height:500px;
}
.content-copy{padding:48px}
.content-shot{height:500px;overflow:hidden;border-left:1px solid var(--line);background:#f9fafc}
.content-shot img{width:100%;transform:translateY(-15%);min-height:720px;object-fit:cover}

.audience-section{background:#fff}
.audience-chips{display:flex;justify-content:center;flex-wrap:wrap;gap:11px;margin-top:34px}
.audience-chips span{border:1px solid var(--line);background:#fbfcfe;border-radius:999px;padding:10px 15px;color:#586478;font-size:13px;font-weight:700}

.beta-section{background:#0f172a;color:white}
.beta-shell{display:grid;grid-template-columns:1fr 1fr;gap:74px;align-items:start}
.beta-copy{padding-top:28px}
.beta-copy h2{color:#fff}
.beta-copy p{color:#bac5d8;font-size:18px}
.beta-points{display:flex;flex-direction:column;gap:12px;margin-top:30px}
.beta-points span{color:#dce4f3;font-size:14px;font-weight:600}
.beta-points span:before{content:"✓";color:#6ee7b7;margin-right:10px}
.beta-form{background:#fff;color:var(--text);border-radius:26px;padding:32px;box-shadow:0 26px 80px rgba(0,0,0,.30)}
.beta-form h3{font-size:25px;margin-bottom:24px}
.beta-form>label,.beta-form fieldset{display:block;margin-bottom:20px}
.beta-form label>span,.beta-form legend{display:block;font-size:13px;font-weight:700;color:#4d586c;margin-bottom:8px}
.beta-form input[type=text],.beta-form input[type=email],.beta-form textarea{
  width:100%;border:1px solid #dbe2ed;border-radius:12px;padding:13px 14px;background:#fbfcfe;color:#172033;outline:none;
}
.beta-form input:focus,.beta-form textarea:focus{border-color:#84a5ff;box-shadow:0 0 0 4px rgba(43,102,246,.08)}
.beta-form fieldset{border:0;padding:0}
.radio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.radio-grid label{position:relative}
.radio-grid input{position:absolute;opacity:0}
.radio-grid span{
  margin:0!important;border:1px solid #dbe2ed;border-radius:10px;padding:10px 9px;text-align:center;background:#fbfcfe;
  font-size:12px!important;font-weight:700!important;color:#596579!important;cursor:pointer;
}
.radio-grid input:checked+span{background:#edf3ff;border-color:#8bacff;color:#234dba!important}
.checkbox-row{display:flex!important;gap:10px;align-items:flex-start}
.checkbox-row input{margin-top:3px}
.checkbox-row span{font-weight:500!important;line-height:1.5}
.form-note{text-align:center;font-size:11px;margin:10px 0 0}
.form-note.success{color:#0c8a57;font-weight:700}
.form-note.error{color:#b42318;font-weight:700}

.faq-section{background:#fff}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
.faq-list details{border-bottom:1px solid var(--line);padding:22px 0}
.faq-list summary{font-weight:700;cursor:pointer;list-style:none;padding-right:34px;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";position:absolute;right:4px;top:-3px;font-size:24px;color:#8793a6;font-weight:400}
.faq-list details[open] summary:after{content:"–"}
.faq-list p{margin:13px 0 0;max-width:720px;font-size:14px}

.final-cta{background:linear-gradient(180deg,#f7f9ff,#fff)}
.footer-mark{width:58px;height:58px;margin:0 auto 24px}
.final-cta h2{font-size:clamp(36px,4vw,54px)}

.site-footer{border-top:1px solid var(--line);padding:30px 0}
.footer-row{display:flex;align-items:center;justify-content:space-between}
.footer-row p{margin:0;font-size:12px}
.footer-brand{font-size:16px}
.footer-brand .brand-mark{width:26px;height:26px}
.footer-links{display:flex;gap:20px;font-size:12px;color:#667286;font-weight:600}

@media (max-width: 980px){
  .section{padding:86px 0}
  .feature-grid.three,.skills-grid,.privacy-cards{grid-template-columns:repeat(2,1fr)}
  .feature-card{min-height:520px}
  .split,.beta-shell,.faq-wrap,.content-types{grid-template-columns:1fr}
  .showcase-copy{max-width:720px}
  .architecture{grid-template-columns:1fr;gap:16px}
  .arch-arrow{transform:rotate(90deg)}
  .no-backend{position:static;text-align:center;margin-top:4px}
  .product-panels{grid-template-columns:1fr}
  .content-shot{border-left:0;border-top:1px solid var(--line)}
  .manager-preview{margin-right:-220px}
}

@media (max-width: 760px){
  .container{width:min(calc(100% - 28px),var(--container))}
  .section{padding:72px 0}
  .site-header{backdrop-filter:blur(10px)}
  .nav-wrap{height:64px}
  .primary-nav{
    display:none;position:absolute;left:14px;right:14px;top:70px;background:#fff;border:1px solid var(--line);
    border-radius:16px;padding:18px;box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch;gap:8px;
  }
  .primary-nav.open{display:flex}
  .primary-nav a{padding:10px}
  .primary-nav .btn{margin-top:4px}
  .mobile-menu-btn{display:block}
  .hero{padding-top:62px}
  h1{font-size:clamp(44px,13vw,64px)}
  h2{font-size:clamp(32px,10vw,46px)}
  .hero-copy{font-size:17px}
  .trust-line{font-size:13px;align-items:flex-start}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .browser-chrome{height:32px}
  .browser-address{height:19px;min-width:130px;font-size:9px}
  .product-badges{flex-wrap:wrap;gap:9px}
  .product-badges i{display:none}
  .problem-visual{flex-direction:column;gap:12px}
  .problem-arrow{transform:rotate(90deg)}
  .feature-grid.three,.skills-grid,.privacy-cards{grid-template-columns:1fr}
  .feature-card{min-height:auto}
  .extension-shell{width:68%;margin-bottom:-100px}
  .detail-crop{height:320px}
  .split{gap:38px}
  .architecture{padding:24px}
  .arch-row{grid-template-columns:1fr}
  .product-panel{min-height:auto}
  .extension-large{width:72%}
  .manager-preview{margin:24px -350px 0 24px}
  .content-copy{padding:32px 24px}
  .content-shot{height:420px}
  .beta-form{padding:24px}
  .radio-grid{grid-template-columns:repeat(2,1fr)}
  .footer-row{flex-direction:column;gap:16px}
}


/* Real semantic-search screenshot used in the How It Works → Find card */
.find-shot{
  height:370px;
  margin-top:24px;
  border:1px solid #dfe5ef;
  border-radius:18px;
  overflow:hidden;
  background:#f8faff;
  box-shadow:0 14px 32px rgba(31,52,88,.08);
}
.find-shot img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:50% 18%;
}
@media (max-width:760px){
  .find-shot{height:330px}
}


/* Embedded semantic-search demo video */
.search-demo{
  display:block;
  width:100%;
  height:auto;
  background:#fff;
}
@media (prefers-reduced-motion: reduce){
  .search-demo{display:none}
  .demo-stage{
    min-height:320px;
    background:url("assets/demo/search-demo-poster.jpg") center/cover no-repeat;
  }
}