/* k8ntz.com, approach C ("K8NTZ dark teal"), draft 2026-10-14.
   From the dark samples on Alexander's mood board: charcoal, metallic teal, the 8 on a glowing tile.
   No web fonts, no scripts, no outside requests (same rules as A and B). */
:root{
  --bg:#0B151A; --bg2:#0F1E24; --panel:#132831; --panel2:#17313B; --line:#24414B;
  --text:#E8F0F1; --soft:#B5C6CA; --muted:#8299A0;
  --teal:#2BB5A8; --teal-l:#8FE3D6; --teal-d:#137A73; --ice:#7FC4D8; --steel:#A9B4B8;
  --grad:linear-gradient(120deg,#137A73 0%,#2BB5A8 45%,#8FE3D6 70%,#2BB5A8 100%);
  --head:"Montserrat","Segoe UI","Helvetica Neue",Arial,sans-serif;
  --body:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 var(--body)}
img{max-width:100%;display:block}
a{color:var(--teal-l)}
a:focus-visible,.btn:focus-visible,summary:focus-visible{outline:2px solid var(--teal-l);outline-offset:3px}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;color:#000;padding:6px 10px;z-index:9}
.draft{background:var(--teal-d);color:#fff;text-align:center;font-size:12px;letter-spacing:.08em;padding:4px 8px}

/* header */
.top{position:sticky;top:0;z-index:5;background:rgba(11,21,26,.9);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:64px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.mini{display:flex;align-items:baseline;gap:0;text-decoration:none;color:#fff;font:800 20px/1 var(--head);letter-spacing:.06em}
.mini img{height:.78em;width:auto;margin:0 .06em 0 .04em}
.nav{display:flex;flex-wrap:wrap;align-items:center;gap:4px 20px;font-size:14px;letter-spacing:.04em}
.nav a{color:var(--soft);text-decoration:none}
.nav a:hover{color:var(--teal-l)}
.nav .book{color:#06201E;background:var(--grad);padding:8px 16px;border-radius:10px;font-weight:700}

/* type */
h1,h2,h3{font-family:var(--head);color:#fff;line-height:1.12;margin:0 0 .5em}
h2{font-size:clamp(28px,4.2vw,42px);font-weight:800}
h3{font-size:19px;font-weight:700}
p{margin:0 0 1em}
.label{display:inline-flex;align-items:center;gap:10px;font:700 12px/1.4 var(--head);letter-spacing:.28em;text-transform:uppercase;color:var(--teal-l);margin-bottom:14px}
.label::before{content:"";width:26px;height:2px;background:var(--grad)}
.lead{font-size:19px;color:var(--soft);max-width:660px}
.small{font-size:14px;color:var(--muted)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
section{padding:84px 0}
.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* hero: text left, the 8 tile right */
.hero{padding:76px 0 70px;position:relative;overflow:hidden;
  background:radial-gradient(900px 520px at 78% 40%,rgba(43,181,168,.18),transparent 60%),
             repeating-radial-gradient(circle at 78% 40%,rgba(143,227,214,.05) 0 1px,transparent 1px 38px),var(--bg)}
.hero .grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.kicker{font:700 13px/1.5 var(--head);letter-spacing:.24em;text-transform:uppercase;color:var(--steel);margin-bottom:18px}
.kicker b{color:var(--teal-l);font-weight:700}
.hero h1{font-size:clamp(40px,6.4vw,74px);font-weight:800;letter-spacing:-.01em;margin-bottom:18px}
.hero .lead{margin-bottom:28px}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:14px 24px;border-radius:12px;font:700 15px/1.2 var(--head);letter-spacing:.03em;text-decoration:none;border:1px solid transparent}
.btn.pri{background:var(--grad);color:#06201E;box-shadow:0 10px 30px rgba(43,181,168,.25)}
.btn.pri:hover{filter:brightness(1.08)}
.btn.sec{border-color:var(--line);color:#fff;background:rgba(255,255,255,.03)}
.btn.sec:hover{border-color:var(--teal)}
.pilot{margin-top:18px;font-size:14px;color:var(--muted)}
.tile{aspect-ratio:1/1;max-width:380px;width:100%;margin-left:auto;border-radius:28%;background:var(--bg2);border:1px solid #2C5560;
  display:flex;align-items:center;justify-content:center;flex-direction:column;
  box-shadow:0 0 0 10px rgba(43,181,168,.05),0 0 80px rgba(43,181,168,.28),inset 0 1px 0 rgba(255,255,255,.08)}
.tile img{width:66%;height:auto;filter:drop-shadow(0 8px 18px rgba(43,181,168,.45))}
.tile img.big8{width:auto;height:52%}
.tile .tm{margin-top:8px;font:800 30px/1 var(--head);letter-spacing:.14em;color:#fff;display:flex;align-items:baseline;justify-content:center}
.tile .tm img{width:auto;height:.78em;margin:0 .14em 0 0;filter:none}
.tile .motto{margin-top:12px;font:700 11px/1 var(--head);letter-spacing:.32em;text-transform:uppercase;color:var(--teal-l)}

/* proof strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg2)}
.strip ul{list-style:none;margin:0;padding:22px 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.strip li{font-size:14px;color:var(--soft);padding-left:14px;border-left:2px solid var(--teal)}
.strip li b{display:block;color:#fff;font:700 15px/1.3 var(--head)}

/* method: 4 steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:36px;counter-reset:s}
.step{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px 20px}
.step .no{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:var(--grad);color:#06201E;font:800 16px/1 var(--head);margin-bottom:14px}
.step p{margin:0;color:var(--soft);font-size:15px}

/* lanes: 2x2 glass cards */
.lanes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:36px}
.lane{background:linear-gradient(160deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:20px;padding:28px 26px}
.lane .ic{width:44px;height:44px;border-radius:12px;border:1px solid #2C5560;display:flex;align-items:center;justify-content:center;margin-bottom:16px;background:rgba(43,181,168,.08)}
.lane .ic svg{width:24px;height:24px;stroke:var(--teal-l);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.lane p{color:var(--soft);margin-bottom:12px}
.lane .lived{font-size:14px;color:var(--muted)}
.lane .lived b{color:var(--teal-l);font:700 11px/1 var(--head);letter-spacing:.2em;text-transform:uppercase;margin-right:6px}
.note{margin-top:22px;font-size:14px;color:var(--muted);max-width:780px}

/* offers */
.offers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:36px}
.offer{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:32px 28px;display:flex;flex-direction:column}
.offer.feature{background:linear-gradient(160deg,#173A42,#132831 60%);border:1px solid var(--teal);box-shadow:0 0 50px rgba(43,181,168,.15)}
.offer .flag{align-self:flex-start;font:700 11px/1 var(--head);letter-spacing:.2em;text-transform:uppercase;color:#06201E;background:var(--grad);padding:6px 10px;border-radius:8px;margin-bottom:14px}
.offer .price{font:800 44px/1 var(--head);margin:4px 0 4px}
.offer .per{font-size:14px;color:var(--muted);margin-bottom:18px}
.offer ul{list-style:none;padding:0;margin:0 0 24px;color:var(--soft)}
.offer ul li{padding-left:26px;position:relative;margin-bottom:8px}
.offer ul li::before{content:"";position:absolute;left:2px;top:.55em;width:12px;height:7px;border-left:2px solid var(--teal-l);border-bottom:2px solid var(--teal-l);transform:rotate(-45deg)}
.offer .btn{margin-top:auto;text-align:center}
.terms-line{margin-top:18px;font-size:14px;color:var(--muted);text-align:center}

/* code + about */
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:start}
.code{list-style:none;margin:24px 0 0;padding:0}
.code li{display:grid;grid-template-columns:52px minmax(0,1fr);gap:12px;padding:16px 0;border-bottom:1px solid var(--line)}
.code .rn{font:800 18px/1.3 var(--head);letter-spacing:.12em}
.code h3{margin:0 0 2px;font-size:17px}
.code p{margin:0;color:var(--soft);font-size:15px}
.photo{aspect-ratio:4/5;border-radius:26px;border:1px dashed var(--teal);display:flex;align-items:center;justify-content:center;text-align:center;padding:24px;color:var(--muted);font-size:14px;
  background:repeating-linear-gradient(135deg,#10222A 0 12px,#0E1E25 12px 24px);margin-bottom:22px}
.photo b{display:block;color:var(--teal-l);letter-spacing:.2em;text-transform:uppercase;font:700 12px/1.4 var(--head);margin-bottom:6px}
.about p{color:var(--soft)}
.about .photo{max-width:400px;aspect-ratio:1/1}

/* faq */
.faq{max-width:820px;margin-top:30px}
.faq details{border:1px solid var(--line);border-radius:14px;background:var(--panel);margin-bottom:12px;padding:0 20px}
.faq summary{cursor:pointer;list-style:none;padding:18px 0;font:700 16px/1.4 var(--head);color:#fff;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--teal-l);font-size:22px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--soft);margin:0 0 18px}

/* contact band */
.cta{background:radial-gradient(700px 300px at 50% 0%,rgba(43,181,168,.22),transparent 70%),var(--bg2);border-top:1px solid var(--line);text-align:center}
.cta .lead{margin:0 auto 26px}
.mails{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;max-width:780px;margin:0 auto}
.mailbox{display:block;text-decoration:none;border:1px solid var(--line);border-radius:16px;padding:22px;background:var(--panel)}
.mailbox:hover{border-color:var(--teal)}
.mailbox b{display:block;font:700 11px/1.6 var(--head);letter-spacing:.24em;text-transform:uppercase;color:var(--teal-l);margin-bottom:6px}
.mailbox span{font:700 clamp(16px,2.4vw,20px)/1.3 var(--head);color:#fff;word-break:break-word}
.safety{max-width:780px;margin:34px auto 0;font-size:14px;color:var(--muted);text-align:left;border-top:1px solid var(--line);padding-top:20px}
.safety b{color:var(--soft)}

footer{background:#081014;color:var(--muted);font-size:14px;padding:30px 0;border-top:1px solid var(--line)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;align-items:center}
footer .fmark{display:flex;align-items:baseline;gap:0;color:#fff;font:800 18px/1 var(--head);letter-spacing:.06em}
footer .fmark img{height:.78em;width:auto;margin:0 .06em 0 .04em}

@media (max-width:900px){
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .strip ul{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  section{padding:60px 0}
  .hero .grid,.lanes,.offers,.two,.mails{grid-template-columns:minmax(0,1fr)}
  .hero .grid{gap:36px}
  .tile{margin:0 auto;max-width:260px}
  .nav{gap:2px 12px;font-size:13px}
  .nav .hide-sm{display:none}
  .two{gap:36px}
}
@media (max-width:440px){
  .steps,.strip ul{grid-template-columns:minmax(0,1fr)}
}

/* seal art in place of the About photo until real photos arrive */
.photo.seal-art{border:1px solid var(--line);background:radial-gradient(circle at 50% 45%,rgba(43,181,168,.16),transparent 65%),var(--bg2)}
.photo.seal-art img{width:62%;height:auto;filter:drop-shadow(0 10px 30px rgba(43,181,168,.35))}