/* SealGuard marketing site — Aeterna skin over InstaPreview's landing format.
   Palette/typography mirror sealguard-frontend/src/app/lib/ui.ts + DESIGN.md. */

:root{
  --bg:#0a1322; --bg2:#0d1828; --surface:#131e30; --surface2:#1a2538; --surface3:#233044;
  --border:#324162; --border-soft:#243049;
  --gold:#d4b06a; --gold-bright:#e5c478; --gold-dim:#8a7444;
  --green:#1f9d55; --red:#FF4B4B; --yellow:#d97706;
  --text:#e8eaf0; --text2:#b4bccc; --text-dim:#7884a0; --text-mute:#4a5572; --ink:#0a1322;
  --display:'Bebas Neue','Geist',sans-serif;
  --insta:'Comfortaa','Geist',sans-serif;            /* Insta house mark */
  --serif:'Fraunces','Cormorant Garamond',Georgia,serif;
  --body:'Geist',-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'Geist Mono',ui-monospace,'SF Mono',monospace;
  /* Brushed-metal gold — Aeterna wordmark + button treatment (highlight → gold → bronze → sheen). */
  --metal:linear-gradient(180deg,#f8edcf 0%,#e7cd8a 26%,#d4b06a 50%,#ad8246 72%,#ecd49d 92%);
  /* Machined inner-edge lighting for metallic gold buttons. */
  --metal-edge:inset 0 1px 0 rgba(255,255,255,.55),inset 0 -1px 1px rgba(90,60,20,.42);
  /* Brushed-metal navy for card surfaces (faint vertical sheen). */
  --metal-surface:linear-gradient(178deg,#19253a 0%,#141f31 52%,#0f1827 100%);
  --shadow:0 12px 30px rgba(0,0,0,.35);
  --shadow-lg:0 30px 60px rgba(0,0,0,.55);
}

/* Metallic gold text fill (falls back to flat gold where unsupported). */
.metal,.lockup .wm,h1 em,.sectitle em,.ctabox h2 em{
  background:var(--metal);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:var(--gold)
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--body);
  font-size:17px;line-height:1.5;-webkit-font-smoothing:antialiased;
  /* Brushed-metal navy: crossing linear sheens (lighter steel-navy sweep →
     deeper navy shadow) over the radial glows. Low-alpha so text stays legible. */
  background-image:
    linear-gradient(104deg,rgba(58,78,112,.10) 0%,rgba(58,78,112,0) 26%,rgba(58,78,112,0) 62%,rgba(8,14,26,.22) 100%),
    linear-gradient(200deg,rgba(42,58,90,.08) 0%,rgba(42,58,90,0) 42%),
    radial-gradient(1100px 620px at 50% -8%,rgba(212,176,106,.06),transparent 60%),
    radial-gradient(900px 520px at 50% 108%,rgba(50,65,98,.16),transparent 60%);
  background-attachment:fixed;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5{margin:0}
em{font-style:italic;color:var(--gold)}
.wrap{max-width:1140px;margin:0 auto;padding:0 28px}
section{padding:104px 0}

/* ───────── Brand lockup ───────── */
.lockup{display:inline-flex;flex-direction:column;line-height:1;user-select:none}
.lockup .wm{font-family:var(--display);letter-spacing:.12em;font-weight:400}
.lockup .tag{font-family:var(--serif);font-style:italic;color:var(--text-dim);margin-top:3px}
.lockup .tag b{font-family:var(--insta);font-style:normal;font-weight:700;color:var(--gold-bright);letter-spacing:.02em;font-size:.92em}
.lockup-sm .wm{font-size:23px}
.lockup-sm .tag{font-size:11px}
.lockup-hero{margin-bottom:26px}
.lockup-hero .wm{font-size:38px}
.lockup-hero .tag{font-size:15px;margin-top:4px}

/* ───────── Nav ───────── */
nav{position:sticky;top:0;z-index:50;background:rgba(10,19,34,.78);
  backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--border-soft)}
.navin{display:flex;align-items:center;justify-content:space-between;height:74px;gap:18px}
.navlinks{display:flex;gap:30px;font-size:14.5px;color:var(--text2)}
.navlinks a:hover{color:var(--gold)}
.nav-right{display:flex;align-items:center;gap:18px}
.nav-auth{font-size:14.5px;color:var(--text2)}
.nav-auth:hover{color:var(--gold)}
.navcta{font-size:14px;font-weight:600;color:var(--ink);
  background:var(--metal);border:1px solid var(--gold-dim);
  padding:10px 18px;border-radius:8px;
  box-shadow:0 2px 12px rgba(212,176,106,.22),var(--metal-edge);
  transition:filter .15s ease,transform .08s ease}
.navcta:hover{filter:brightness(1.06) saturate(1.04)}
.navcta:active{filter:brightness(.9) contrast(.96);transform:translateY(1px)}

/* ───────── Buttons ───────── */
.btn-primary{display:inline-block;font-weight:600;color:var(--ink);
  background:var(--metal);border:1px solid var(--gold-dim);
  padding:15px 26px;border-radius:9px;
  box-shadow:0 6px 22px rgba(212,176,106,.24),var(--metal-edge);
  transition:filter .15s ease,transform .12s ease,box-shadow .15s ease}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05) saturate(1.04);
  box-shadow:0 12px 32px rgba(212,176,106,.34),var(--metal-edge)}
.btn-primary:active{transform:translateY(0);filter:brightness(.9) contrast(.96);
  box-shadow:0 3px 12px rgba(212,176,106,.22),inset 0 1px 2px rgba(90,60,20,.5)}
.btn-ghost{display:inline-block;font-weight:600;color:var(--text);
  padding:15px 22px;border-radius:9px;border:1px solid var(--border);transition:.2s}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn-gold{font-size:16px;padding:18px 34px}

/* ───────── Hero ───────── */
header{padding:72px 0 96px}
.herogrid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
h1{font-family:var(--display);font-weight:400;font-size:clamp(46px,7vw,84px);line-height:.98;
  letter-spacing:.01em;color:var(--text);margin-bottom:24px}
h1 .l{display:block}
.sub{color:var(--text2);font-size:19px;line-height:1.6;max-width:560px;margin-bottom:30px}
.sub b{color:var(--text)}
.herobtns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.trust{display:flex;gap:22px;flex-wrap:wrap;font-size:14px;color:var(--text-dim)}
.trust .ck{color:var(--green);font-weight:800;margin-right:5px}

/* Hero / spotlight verify mockup */
.herocard{position:relative}
.vcard{background:var(--metal-surface);border:1px solid var(--border-soft);border-top:3px solid var(--gold);
  border-radius:14px;overflow:hidden;box-shadow:var(--shadow-lg)}
.vband{padding:30px 20px;text-align:center;color:#fff}
.vband.green{background:var(--green)}
.vband.red{background:var(--red)}
.vband.yellow{background:var(--yellow)}
.vword{font-size:42px;font-weight:900;letter-spacing:1px;line-height:1}
.vsub{font-size:14px;font-weight:700;margin-top:7px}
.vbody{padding:20px 22px}
.vrow{display:flex;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px solid var(--border-soft)}
.vrow .k{color:var(--text-dim);font-size:12px;letter-spacing:.04em}
.vrow .v{color:#fff;font-weight:700;font-size:14px;text-align:right}
.vrow .v.mono{font-family:var(--mono);font-weight:500;color:var(--text2)}
.vhash{margin-top:14px;padding:13px;background:var(--bg);border:1px solid var(--border-soft);border-radius:10px;text-align:center}
.vhash .hk{color:#4ade80;font-weight:800;font-size:13px}
.float{position:absolute;background:var(--surface2);border:1px solid var(--border);border-radius:12px;
  padding:13px 16px;display:flex;align-items:center;gap:12px;box-shadow:var(--shadow)}
.fl-scan{right:-14px;bottom:36px}
.fl-scan .qr{width:40px;height:40px;border-radius:6px;
  background-image:linear-gradient(45deg,var(--gold) 25%,transparent 25%,transparent 75%,var(--gold) 75%),
    linear-gradient(45deg,var(--gold) 25%,var(--bg) 25%,var(--bg) 75%,var(--gold) 75%);
  background-size:10px 10px;background-position:0 0,5px 5px;background-color:var(--bg);opacity:.85}
.fl-scan .t{font-size:11px;color:var(--text-dim);line-height:1.3}
.fl-scan .t b{display:block;color:var(--text);font-size:12.5px}

/* ───────── Audience strip ───────── */
.logostrip{border-top:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft);
  background:rgba(13,24,40,.5);padding:30px 0}
.logostrip .lbl{text-align:center;font-size:13px;letter-spacing:.04em;color:var(--text-dim);margin-bottom:16px}
.logostrip .logos{display:flex;gap:14px 40px;flex-wrap:wrap;justify-content:center;
  font-family:var(--display);letter-spacing:.1em;font-size:19px;color:var(--text-mute)}

/* ───────── Section headings ───────── */
.seclabel{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:15px}
.sectitle{font-family:var(--display);font-weight:400;font-size:clamp(34px,4.8vw,54px);line-height:1.04;
  letter-spacing:.01em;color:var(--text);margin-bottom:18px}
.secsub{color:var(--text2);font-size:18px;max-width:640px;line-height:1.65}
.center{text-align:center}
.secsub.center{margin-left:auto;margin-right:auto}
.tagline{font-family:var(--insta);font-style:italic;font-size:22px;color:var(--gold-bright);margin-top:26px}

/* ───────── Steps ───────── */
.steps{display:grid;gap:24px;margin-top:48px}
.steps-4{grid-template-columns:repeat(4,1fr)}
.step{background:var(--metal-surface);border:1px solid var(--border-soft);border-radius:16px;padding:30px 26px;transition:.3s}
.step:hover{transform:translateY(-6px);border-color:var(--border);box-shadow:var(--shadow)}
.step .n{font-family:var(--display);font-size:17px;color:var(--ink);width:42px;height:42px;border-radius:11px;
  display:grid;place-items:center;margin-bottom:20px;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold));box-shadow:0 8px 18px rgba(212,176,106,.22)}
.step h3{font-family:var(--display);font-size:24px;font-weight:400;letter-spacing:.06em;color:var(--gold);margin-bottom:10px}
.step p{color:var(--text2);font-size:15px;line-height:1.55}

/* ───────── Split sections (verify / revoke) ───────── */
.splitgrid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.splitgrid.reverse .vcard-wrap{order:-1}
.vcard-wrap{display:flex;justify-content:center}
.vcard-wrap .vcard{max-width:380px;width:100%}
.aside{margin-top:22px;padding:18px 20px;background:var(--metal-surface);border:1px solid var(--border-soft);
  border-left:3px solid var(--gold);border-radius:10px;color:var(--text2);font-size:15px;line-height:1.6}
.aside b{color:var(--text)}
.notice{padding:6px 2px}
.ntitle{font-family:var(--display);letter-spacing:.06em;color:var(--red);font-size:18px;margin-bottom:14px;line-height:1.15}
.nrow{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--border-soft);font-size:13px}
.nrow span{color:var(--text-dim)}
.nrow b{color:var(--text);text-align:right}

/* ───────── Built for trust ───────── */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:50px}
.feat-card{background:var(--metal-surface);border:1px solid var(--border-soft);border-radius:16px;padding:32px 28px;transition:.3s}
.feat-card:hover{transform:translateY(-6px);border-color:var(--border);box-shadow:var(--shadow)}
.feat-card .fi{font-size:26px;color:var(--gold);margin-bottom:16px}
.feat-card h3{font-family:var(--display);font-size:25px;font-weight:400;letter-spacing:.05em;color:var(--gold);margin-bottom:10px}
.feat-card p{color:var(--text2);font-size:15px;line-height:1.55}

/* ───────── Pricing ───────── */
.prices{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch;margin-top:50px}
.price{background:var(--metal-surface);border:1px solid var(--border-soft);border-radius:18px;padding:36px 30px;position:relative;transition:.3s}
.price:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.price.feat{border-color:var(--gold);box-shadow:0 0 0 1px rgba(212,176,106,.25),var(--shadow)}
.ribbon{position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:linear-gradient(135deg,var(--gold-bright),var(--gold));color:var(--ink);
  font-size:11px;font-weight:700;letter-spacing:.1em;padding:5px 14px;border-radius:20px;white-space:nowrap}
.price .tag{font-family:var(--display);font-size:20px;letter-spacing:.1em;color:var(--gold);margin-bottom:12px}
.amt{font-family:var(--display);font-size:46px;color:var(--text);line-height:1;margin-bottom:8px}
.amt small{font-family:var(--body);font-size:15px;color:var(--text-dim);font-weight:500}
.pdesc{color:var(--text-dim);font-size:14px;margin-bottom:20px;min-height:40px}
.price ul{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:11px}
.price li{font-size:14.5px;color:var(--text2);display:flex;gap:10px}
.price .ck{color:var(--green);font-weight:800}
.pbtn{display:block;text-align:center;padding:13px;border-radius:9px;font-weight:600;
  border:1px solid var(--border);color:var(--text);transition:.2s}
.pbtn:hover{border-color:var(--gold);color:var(--gold)}
.pbtn.fill{background:var(--metal);color:var(--ink);border-color:var(--gold-dim);
  box-shadow:0 4px 16px rgba(212,176,106,.22),var(--metal-edge)}
.pbtn.fill:hover{filter:brightness(1.06) saturate(1.04);color:var(--ink)}
.pbtn.fill:active{filter:brightness(.9) contrast(.96);transform:translateY(1px);color:var(--ink)}
.pricefoot{text-align:center;margin-top:26px;color:var(--text-dim);font-size:14px}
.disc{display:flex;gap:16px;align-items:flex-start;margin-top:40px;padding:22px 24px;
  background:var(--metal-surface);border:1px solid var(--border-soft);border-radius:14px}
.disc .ic{flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  background:rgba(212,176,106,.14);color:var(--gold);font-weight:800}
.disc p{margin:0;font-size:14px;color:var(--text-dim);line-height:1.6}
.disc b{color:var(--text2)}

/* ───────── FAQ ───────── */
.faqs{max-width:820px;margin:46px auto 0;display:grid;gap:14px}
.faqs details{background:var(--metal-surface);border:1px solid var(--border-soft);border-radius:12px;padding:4px 22px}
.faqs summary{cursor:pointer;list-style:none;padding:18px 0;font-size:17px;font-weight:600;color:var(--text);
  display:flex;justify-content:space-between;align-items:center;gap:14px}
.faqs summary::-webkit-details-marker{display:none}
.faqs summary::after{content:"+";color:var(--gold);font-size:22px;font-weight:400;transition:.2s}
.faqs details[open] summary::after{transform:rotate(45deg)}
.faqs details p{margin:0 0 20px;color:var(--text2);font-size:15.5px;line-height:1.65}
.faqs details p b{color:var(--text)}

/* ───────── Final CTA ───────── */
.finalcta{padding-bottom:120px}
.ctabox{background:linear-gradient(135deg,var(--surface),var(--bg2));border:1px solid var(--border-soft);
  border-radius:26px;padding:76px 50px;text-align:center;position:relative;overflow:hidden;box-shadow:var(--shadow-lg)}
.ctabox::before{content:"";position:absolute;inset:0;opacity:.7;pointer-events:none;
  background:radial-gradient(700px 360px at 80% -10%,rgba(212,176,106,.18),transparent 60%),
    radial-gradient(600px 400px at 10% 120%,rgba(212,176,106,.10),transparent 60%)}
.ctabox>*{position:relative;z-index:2}
.ctabox h2{font-family:var(--display);font-weight:400;font-size:clamp(36px,5vw,62px);line-height:1.02;
  letter-spacing:.01em;color:var(--text);margin-bottom:18px}
.ctabox p{color:var(--text2);font-size:18px;max-width:560px;margin:0 auto 30px}

/* ───────── Footer ───────── */
footer{border-top:1px solid var(--border-soft);background:rgba(13,24,40,.5);padding:64px 0 40px}
.footgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footbrand p{color:var(--text-dim);font-size:14px;max-width:300px;margin:16px 0 0}
.footbrand .contact{color:var(--text2);margin-top:10px}
.footbrand .family{font-size:13px;color:var(--text-mute);margin-top:16px}
.footbrand .family b{color:var(--text-dim)}
.footcol h5{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-dim);margin-bottom:16px}
.footcol a{display:block;color:var(--text2);font-size:14.5px;padding:6px 0}
.footcol a:hover{color:var(--gold)}
.copy{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:24px;border-top:1px solid var(--border-soft);color:var(--text-mute);font-size:13px}

/* ───────── Reveal-on-scroll (progressive: only hides when JS is on) ───────── */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ───────── Responsive ───────── */
@media(max-width:960px){
  .herogrid{grid-template-columns:1fr;gap:48px}
  .splitgrid{grid-template-columns:1fr;gap:36px}
  .splitgrid.reverse .vcard-wrap{order:0}
  .steps-4{grid-template-columns:repeat(2,1fr)}
  .features{grid-template-columns:1fr}
  .prices{grid-template-columns:repeat(2,1fr)}
  .footgrid{grid-template-columns:1fr 1fr;gap:32px}
  .navlinks{display:none}
}
@media(max-width:560px){
  section{padding:72px 0}
  .wrap{padding:0 20px}
  .steps-4{grid-template-columns:1fr}
  .prices{grid-template-columns:1fr}
  .footgrid{grid-template-columns:1fr}
  .trust{gap:10px 22px}
  .nav-auth{display:none}
  .fl-scan{right:8px;bottom:12px}
}