/* ==========================================================================
   WhoIsAge — landing site. Tokens mirror the extension's popup.css so site
   and product read as one brand. See DESIGN.md.
   ========================================================================== */
@font-face{
  font-family:"Inter";
  src:url("fonts/InterVariable.woff2") format("woff2-variations");
  font-style:normal;font-weight:100 900;font-display:swap;
}

:root{
  --brand:#079B5C; --brand-dark:#067746; --brand-pale:#E4F9DF;
  --brand-grad:linear-gradient(135deg,#19C77A,#058A54);
  --page:#EFFCE9; --page-deep:#D8F6CA; --surface:#FFFFFF; --surface-soft:#F8FCF5;
  --ink:#08110C; --ink-soft:#304039; --muted:#63746C;
  --line:#D6E9CF; --line-strong:#AED9A4;
  --danger:#B42318; --danger-pale:#FFF0ED; --warning:#946200; --warning-pale:#FFF7D6;
  --soft-shadow:0 8px 22px rgba(26,82,48,.08);
  --shadow:0 16px 36px rgba(26,82,48,.12);
  --shadow-brand:0 7px 16px rgba(7,155,92,.20);
  --shadow-lg:0 28px 70px rgba(19,78,43,.14);
  --r-sm:12px; --r-md:13px; --r-lg:20px; --r-xl:26px; --r-pill:999px;
  --container:1180px; --gutter:clamp(20px,5vw,48px); --section-y:clamp(72px,10vw,128px);
  --ease:cubic-bezier(.22,1,.36,1);
  --font:"Inter",ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--surface);
  font-optical-sizing:auto;line-height:1.6;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
img,svg{display:block}
h1,h2,h3,p{margin:0}
.tnum{font-variant-numeric:tabular-nums}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:where(a,button,input,[tabindex]):focus-visible{outline:none;box-shadow:0 0 0 3px rgba(7,155,92,.30)}

.container{max-width:var(--container);margin:0 auto;padding-inline:var(--gutter)}
.section{padding-block:var(--section-y)}
.section.tint{background:var(--surface-soft)}
.eyebrow{display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 13px;border-radius:var(--r-pill);
  background:var(--brand-pale);color:var(--brand-dark);font-size:12px;font-weight:800;letter-spacing:.04em;text-transform:uppercase}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--brand)}
.sec-head{max-width:640px;margin:0 auto 48px;text-align:center}
.sec-head h2{margin-top:16px;font-size:clamp(30px,3.6vw,46px);font-weight:800;line-height:1.05;letter-spacing:-.025em;text-wrap:balance}
.sec-head p{margin-top:14px;color:var(--muted);font-size:clamp(16px,1.3vw,18px)}
.accent{color:var(--brand)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;cursor:pointer;font-weight:800;
  white-space:nowrap;transition:transform var(--ease) .18s,box-shadow var(--ease) .18s,background var(--ease) .18s,color var(--ease) .18s,border-color var(--ease) .18s}
.btn svg{width:18px;height:18px}
.btn:active{transform:translateY(1px)}
.btn-primary{height:52px;padding:0 24px;border-radius:var(--r-pill);background:var(--brand);color:#fff;box-shadow:var(--shadow-brand)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(7,155,92,.28)}
.btn-secondary{height:52px;padding:0 22px;border-radius:var(--r-pill);background:#fff;border:1.5px solid var(--line-strong);color:var(--brand-dark)}
.btn-secondary:hover{background:var(--brand-pale);border-color:var(--brand)}
.btn-ghost{height:44px;padding:0 14px;border-radius:var(--r-pill);background:transparent;color:var(--ink-soft);font-weight:600}
.btn-ghost:hover{color:var(--brand-dark)}
.btn-sm{height:44px;padding:0 18px}

/* ---------- nav ---------- */
.nav-wrap{position:sticky;top:14px;z-index:50;padding-inline:var(--gutter)}
.nav{max-width:var(--container);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:64px;padding:0 12px 0 16px;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);
  border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--soft-shadow)}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:34px;height:34px;border-radius:9px}
.brand b{font-size:19px;font-weight:800;letter-spacing:-.02em}
.nav-links{display:flex;gap:6px}
.nav-links a{padding:8px 12px;border-radius:var(--r-pill);color:var(--ink-soft);font-size:15px;font-weight:600;transition:color .18s,background .18s}
.nav-links a:hover{color:var(--brand-dark);background:var(--brand-pale)}
.nav-actions{display:flex;align-items:center;gap:10px}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);place-items:center}
.hamburger svg{width:22px;height:22px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding-top:clamp(48px,7vw,84px);padding-bottom:clamp(56px,8vw,96px);
  background:radial-gradient(120% 80% at 50% -10%,var(--page-deep) 0%,var(--page) 40%,#fff 78%)}
.hero .rings{position:absolute;top:-160px;left:50%;transform:translateX(-50%);width:760px;max-width:140vw;opacity:.5;pointer-events:none}
.blob{position:absolute;border-radius:50%;filter:blur(70px);background:rgba(7,155,92,.10);pointer-events:none;z-index:0}
.blob.a{width:380px;height:380px;top:40px;left:-120px}
.blob.b{width:340px;height:340px;bottom:-80px;right:-100px}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero-copy h1{margin-top:20px;font-size:clamp(40px,6vw,72px);font-weight:800;line-height:1.02;letter-spacing:-.03em;text-wrap:balance}
.hero-copy .lead{margin-top:18px;max-width:520px;color:var(--ink-soft);font-size:clamp(17px,1.4vw,20px);line-height:1.5}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:24px;color:var(--ink-soft);font-size:14px;font-weight:600}
.trust-row span{display:inline-flex;align-items:center;gap:7px}
.trust-row svg{width:16px;height:16px;color:var(--brand);stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* ---------- demo / age hero panel (signature component) ---------- */
.demo{position:relative;z-index:2}
.demo-form{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;
  background:#fff;border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:8px 8px 8px 14px;box-shadow:var(--soft-shadow)}
.demo-form .inp{display:flex;align-items:center;gap:10px;min-width:0}
.demo-form .inp svg{width:18px;height:18px;color:var(--muted);stroke:currentColor;stroke-width:1.9;fill:none;stroke-linecap:round}
.demo-form input{width:100%;min-width:0;height:40px;border:0;background:transparent;color:var(--ink);font-size:15px;font-weight:600;outline:none}
.demo-form input::placeholder{color:#7c8c83}
.demo-form .btn{height:44px}
.demo-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(7,155,92,.13)}

.age-card{margin-top:14px;border:1px solid var(--line-strong);border-radius:var(--r-xl);background:#fff;box-shadow:var(--shadow);overflow:hidden}
.age-hero{position:relative;display:grid;grid-template-columns:1fr auto;align-items:center;gap:14px;padding:22px;overflow:hidden;
  background:linear-gradient(135deg,rgba(255,255,255,.7),transparent 50%),linear-gradient(180deg,var(--page-deep),var(--brand-pale))}
.age-hero::after{content:"";position:absolute;right:-54px;bottom:-74px;width:170px;height:170px;border:24px solid rgba(7,155,92,.09);border-radius:50%}
.domain-line{display:flex;align-items:center;gap:8px;margin-bottom:14px;font-size:13px;font-weight:800}
.domain-line .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px rgba(7,155,92,.18)}
.age-big{display:flex;align-items:baseline;gap:9px}
.age-big b{font-size:clamp(44px,6vw,60px);font-weight:900;line-height:.9;letter-spacing:-.02em}
.age-big small{max-width:80px;color:var(--ink-soft);font-size:14px;font-weight:700;line-height:1.1}
.age-sub{margin-top:12px;color:var(--muted);font-size:12px;font-weight:700}
.age-ring{position:relative;width:96px;height:96px;display:grid;place-items:center;border-radius:50%;
  background:conic-gradient(var(--brand) var(--ring,300deg),#dcebdc 0)}
.age-ring::before{content:"";position:absolute;inset:9px;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1px rgba(7,155,92,.1)}
.age-ring .rv{position:relative;text-align:center}
.age-ring .rv b{display:block;font-size:24px;font-weight:900;line-height:1}
.age-ring .rv small{display:block;margin-top:2px;color:var(--brand-dark);font-size:9px;font-weight:900;letter-spacing:.1em}
.metric-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
.metric-strip>div{background:#fff;padding:13px 14px;min-width:0}
.metric-strip span{display:block;margin-bottom:6px;color:var(--muted);font-size:10px;font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.metric-strip b{display:block;font-size:13px;font-weight:800;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.metric-strip small{display:block;margin-top:3px;font-size:10px;font-weight:700;color:var(--brand-dark)}
.metric-strip small.warn{color:var(--warning)}

/* skeleton loading for demo */
.skeleton{position:relative;overflow:hidden;background:#dcebdd;border-radius:14px}
.skeleton::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.72),transparent);transform:translateX(-100%);animation:shimmer 1.2s infinite}
.sk-hero{height:150px;border-radius:var(--r-xl)}
.sk-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:10px}
.sk-row .skeleton{height:64px}

/* ---------- how it works ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--soft-shadow)}
.step .num{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--brand-grad);color:#fff;font-weight:900;box-shadow:var(--shadow-brand)}
.step h3{margin-top:16px;font-size:19px;font-weight:700}
.step p{margin-top:8px;color:var(--muted);font-size:15px}

/* ---------- features ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.feat-grid .small-row{grid-column:1 / -1;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--soft-shadow);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.card.interactive:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.icon-tile{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--brand-pale);color:var(--brand-dark)}
.icon-tile svg{width:23px;height:23px;stroke:currentColor;stroke-width:1.9;fill:none;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin-top:16px;font-size:20px;font-weight:700;letter-spacing:-.01em}
.card p{margin-top:8px;color:var(--muted);font-size:15px;line-height:1.55}
.card.small h3{font-size:17px}
.card.small p{font-size:14px}

/* mini mockups inside feature cards */
.mock{margin-top:18px;border:1px solid var(--line);border-radius:14px;background:var(--surface-soft);padding:14px;overflow:hidden}
.mock .dl-row{display:grid;grid-template-columns:1fr auto;gap:10px;padding:7px 0;border-top:1px solid #e7f0e3;font-size:12px}
.mock .dl-row:first-child{border-top:0}
.mock .dl-row span{color:var(--muted);font-weight:600}
.mock .dl-row b{font-weight:800}
.mock .chips{display:flex;flex-wrap:wrap;gap:5px;margin-top:6px}
.mock .chips i{font-style:normal;font-family:var(--mono);font-size:10px;border:1px solid var(--line);border-radius:999px;padding:4px 8px;background:#fff;color:var(--ink-soft)}
/* serp panel mock */
.serp{display:flex;flex-direction:column;gap:8px}
.serp-row{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:9px 11px}
.serp-row .host{font-size:12px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.serp-age{flex:0 0 auto;font-size:11px;font-weight:800;color:var(--brand-dark);background:var(--brand-pale);border-radius:999px;padding:3px 9px}
.serp-age.btn-show{background:#fff;border:1px solid var(--line-strong);color:var(--ink-soft)}
/* age mini for feature */
.mock .mini-age{display:flex;align-items:baseline;gap:8px}
.mock .mini-age b{font-size:38px;font-weight:900;line-height:.9}
.mock .mini-age small{color:var(--ink-soft);font-size:12px;font-weight:700}

/* ---------- honesty band ---------- */
.honesty{background:var(--ink);color:#eafff4}
.honesty .container{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,56px);align-items:center}
.honesty h2{font-size:clamp(28px,3.4vw,42px);font-weight:800;line-height:1.06;letter-spacing:-.02em;color:#fff}
.honesty .lead{margin-top:14px;color:#a9c6b8;font-size:17px;line-height:1.55}
.honesty ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.honesty li{display:flex;gap:11px;color:#cfe7da;font-size:15px}
.honesty li svg{flex:0 0 auto;width:20px;height:20px;color:#19C77A;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;margin-top:1px}
.honesty .note{border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);background:rgba(255,255,255,.04);padding:22px}
.honesty .note .tag{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:#19C77A}
.honesty .note p{margin-top:12px;color:#dff3e8;font-size:15px;line-height:1.6}

/* ---------- use cases ---------- */
.uses{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.use{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--soft-shadow)}
.use h3{margin-top:14px;font-size:18px;font-weight:700}
.use p{margin-top:7px;color:var(--muted);font-size:14px}

/* ---------- TLD coverage ---------- */
.tld-block{max-width:920px;margin:0 auto;text-align:center}
.tld-label{margin:0 0 14px;font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.tld-label.second{margin-top:30px}
.tld-cloud{display:flex;flex-wrap:wrap;justify-content:center;gap:9px}
.tld{display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);box-shadow:var(--soft-shadow);color:var(--ink-soft);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums}
.tld.hot{background:var(--brand-pale);border-color:#b9e0ad;color:var(--brand-dark)}
.tld-note{margin:30px auto 0;max-width:600px;color:var(--muted);font-size:14px;line-height:1.55}

/* ---------- pricing ---------- */
.price{max-width:480px;margin:0 auto;background:#fff;border:1px solid var(--line-strong);border-radius:var(--r-xl);box-shadow:var(--shadow);overflow:hidden}
.price-head{padding:26px 28px;background:linear-gradient(180deg,var(--brand-pale),#fff);border-bottom:1px solid var(--line)}
.price-head .tag{font-size:12px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--brand-dark)}
.price-head .amount{display:flex;align-items:baseline;gap:8px;margin-top:8px}
.price-head .amount b{font-size:54px;font-weight:900;line-height:1;letter-spacing:-.02em}
.price-head .amount span{color:var(--muted);font-weight:700}
.price ul{margin:0;padding:24px 28px;list-style:none;display:grid;gap:13px}
.price li{display:flex;gap:11px;font-size:15px;color:var(--ink-soft)}
.price li svg{flex:0 0 auto;width:20px;height:20px;color:var(--brand);stroke:currentColor;stroke-width:2.2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.price .foot{padding:0 28px 28px}
.price .foot .btn{width:100%}
.price .foot p{margin-top:12px;text-align:center;color:var(--muted);font-size:13px}

/* ---------- faq ---------- */
.faq{max-width:760px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 4px;background:none;border:0;cursor:pointer;text-align:left;font-size:18px;font-weight:700;color:var(--ink)}
.faq-q .chev{flex:0 0 auto;width:22px;height:22px;color:var(--brand-dark);transition:transform .2s var(--ease)}
.faq-q .chev svg{width:22px;height:22px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.faq-item.open .chev{transform:rotate(180deg)}
.faq-a{overflow:hidden;max-height:0;transition:max-height .24s var(--ease),opacity .2s var(--ease);opacity:0}
.faq-item.open .faq-a{opacity:1}
.faq-a p{padding:0 4px 22px;color:var(--muted);font-size:15px;line-height:1.6;max-width:68ch}

/* ---------- final CTA ---------- */
.cta-band{position:relative;overflow:hidden;text-align:center;background:radial-gradient(120% 120% at 50% 0%,var(--page-deep),var(--brand-pale))}
.cta-band h2{font-size:clamp(30px,4vw,50px);font-weight:800;letter-spacing:-.025em;line-height:1.04;text-wrap:balance}
.cta-band p{margin:14px auto 0;max-width:520px;color:var(--ink-soft);font-size:17px}
.cta-band .btn-primary{margin-top:28px;height:56px;padding:0 32px;font-size:17px}
.cta-band .mini-trust{margin-top:14px;color:var(--muted);font-size:13px;font-weight:600}

/* ---------- footer ---------- */
.footer{background:var(--surface-soft);border-top:1px solid var(--line)}
.footer .container{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-block:56px}
.footer .fcol h4{font-size:13px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--ink);margin-bottom:14px}
.footer .fcol a{display:block;padding:5px 0;color:var(--ink-soft);font-size:14px}
.footer .fcol a:hover{color:var(--brand-dark)}
.footer .about p{margin-top:12px;color:var(--muted);font-size:14px;max-width:34ch;line-height:1.55}
.footer .langs{margin-top:14px;color:var(--muted);font-size:12.5px;font-weight:600}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:18px;grid-template-columns:none}
.footer-bottom span{color:var(--muted);font-size:13px}

/* ---------- reveal ---------- */
@media (prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(16px)}
  .reveal.in{opacity:1;transform:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}
}
@keyframes shimmer{to{transform:translateX(100%)}}

/* ---------- mobile sheet ---------- */
.sheet{position:fixed;inset:0;z-index:60;display:none;background:rgba(8,17,12,.4)}
.sheet.open{display:block}
.sheet-panel{position:absolute;top:14px;right:14px;left:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--shadow);padding:14px}
.sheet-panel a{display:block;padding:13px 12px;border-radius:12px;font-weight:600;color:var(--ink-soft)}
.sheet-panel a:hover{background:var(--brand-pale);color:var(--brand-dark)}
.sheet-panel .btn{width:100%;margin-top:8px}
.sheet-close{position:absolute;top:18px;right:22px;width:40px;height:40px;border:0;background:none;color:var(--ink);font-size:26px;cursor:pointer}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .nav-links{display:none}
  .hamburger{display:grid}
  .nav-actions .btn-secondary,.nav-actions .btn-ghost{display:none}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-copy{text-align:center}
  .hero-copy .lead{margin-inline:auto}
  .hero-cta,.trust-row{justify-content:center}
  .honesty .container{grid-template-columns:1fr;gap:28px}
  .footer .container{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .steps,.feat-grid,.feat-grid .small-row,.uses{grid-template-columns:1fr}
  .demo-form{grid-template-columns:1fr;gap:10px}
  .demo-form .inp{border:1px solid var(--line);border-radius:12px;padding:0 12px;height:48px}
  .demo-form .btn{width:100%}
  .footer .container{grid-template-columns:1fr 1fr}
  .footer-bottom .container{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .footer .container{grid-template-columns:1fr}
  .age-hero{grid-template-columns:1fr}
  .age-ring{justify-self:start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}