@font-face{font-family:"DM Sans";font-weight:400;src:url(assets/fonts/dmsans-400.ttf) format("truetype");font-display:swap}
@font-face{font-family:"DM Sans";font-weight:500;src:url(assets/fonts/dmsans-500.ttf) format("truetype");font-display:swap}
@font-face{font-family:"DM Sans";font-weight:600;src:url(assets/fonts/dmsans-600.ttf) format("truetype");font-display:swap}
@font-face{font-family:"DM Sans";font-weight:700;src:url(assets/fonts/dmsans-700.ttf) format("truetype");font-display:swap}

:root{
  --paper:#f5f3ee; --paper-2:#ebe8e0; --ink:#17181c; --ink-2:#4a4c55; --ink-3:#7b7d86;
  --line:#dcd8cd; --dark:#1b1c20; --dark-2:#26282d; --yellow:#f6c90e; --max:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 "DM Sans",system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:min(var(--max),100% - 48px);margin:0 auto}

/* ---------- header ---------- */
header.top{position:sticky;top:0;z-index:20;background:rgba(245,243,238,.88);backdrop-filter:blur(10px);border-bottom:1px solid transparent}
header.top.scrolled{border-color:var(--line)}
header.top .wrap{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.02em;text-decoration:none}
.brand img{width:30px;height:30px;border-radius:9px}
nav.links{display:flex;gap:26px;margin-left:12px}
nav.links a{text-decoration:none;font-size:15px;color:var(--ink-2);font-weight:500}
nav.links a:hover{color:var(--ink)}
.spacer{flex:1}

.btn{display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 22px;border-radius:12px;background:var(--ink);color:#fff;font:600 16px/1 "DM Sans",sans-serif;text-decoration:none;border:0;cursor:pointer;transition:transform .12s ease,background .15s ease}
.btn:hover{background:#000;transform:translateY(-1px)}
.btn:active{transform:none}
.btn.small{height:40px;padding:0 16px;font-size:14.5px;border-radius:10px}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.btn svg{width:20px;height:20px}

/* ---------- hero ---------- */
.hero{padding:72px 0 28px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--ink-2);letter-spacing:.01em}
.eyebrow i{width:9px;height:9px;border-radius:50%;background:var(--yellow);box-shadow:0 0 0 4px rgba(246,201,14,.25)}
h1{font-size:clamp(40px,6.4vw,76px);line-height:1.02;letter-spacing:-.045em;margin:18px 0 22px;font-weight:700;max-width:14ch}
.lede{font-size:clamp(18px,2vw,21px);color:var(--ink-2);max-width:58ch;margin:0 0 30px}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.trust{display:flex;flex-wrap:wrap;gap:8px 22px;margin:22px 0 0;padding:0;list-style:none;font-size:14.5px;color:var(--ink-3)}
.trust li::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--ink-3);margin-right:9px;vertical-align:middle}

.frame{margin-top:56px;background:var(--dark);border-radius:20px;padding:0;box-shadow:0 40px 80px -30px rgba(23,24,28,.45),0 0 0 1px rgba(0,0,0,.06);overflow:hidden}
.frame .bar{height:40px;background:var(--dark-2);display:flex;align-items:center;gap:8px;padding:0 16px}
.frame .bar i{width:11px;height:11px;border-radius:50%;background:#44464d}
.frame .bar span{margin-left:14px;font-size:13px;color:#8d8f98}
.frame img{width:100%}

/* ---------- sections ---------- */
section{padding:104px 0}
section.tint{background:var(--paper-2)}
.kicker{font-size:14px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin:0 0 14px}
h2{font-size:clamp(32px,4.4vw,52px);line-height:1.06;letter-spacing:-.04em;margin:0 0 20px;font-weight:700;max-width:18ch}
.sub{color:var(--ink-2);font-size:19px;max-width:60ch;margin:0}

.grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:56px;border-top:1px solid var(--line)}
.grid-6 article{padding:30px 30px 34px 0;border-bottom:1px solid var(--line)}
.grid-6 article:not(:nth-child(3n)){border-right:1px solid var(--line);padding-right:30px}
.grid-6 article:not(:nth-child(3n+1)){padding-left:30px}
.grid-6 .n{font-size:14px;font-weight:700;color:var(--ink-3);letter-spacing:.06em}
.grid-6 h3{font-size:21px;letter-spacing:-.02em;margin:10px 0 8px;line-height:1.25}
.grid-6 p{margin:0;color:var(--ink-2);font-size:16px}

.split{display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:center}
.split.flip{grid-template-columns:.95fr 1.05fr}
.split.flip .shot{order:2}
.shot{background:var(--dark);border-radius:18px;overflow:hidden;box-shadow:0 30px 60px -28px rgba(23,24,28,.5),0 0 0 1px rgba(0,0,0,.06)}
.shot img{width:100%}
.shot.light{background:#fff}
.list{margin:26px 0 0;padding:0;list-style:none;display:grid;gap:0}
.list li{padding:16px 0;border-top:1px solid var(--line);font-size:17px;color:var(--ink-2)}
.list li:last-child{border-bottom:1px solid var(--line)}
.list b{color:var(--ink);font-weight:600}

.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;margin-top:52px}
.cols h3{font-size:20px;letter-spacing:-.02em;margin:0 0 8px}
.cols p{margin:0;color:var(--ink-2);font-size:16px}
.perm{margin-top:56px;background:var(--dark);color:#ececef;border-radius:20px;padding:34px 38px;display:grid;grid-template-columns:1fr 1fr;gap:20px 56px}
.perm h3{margin:0 0 6px;font-size:18px;color:#fff}
.perm p{margin:0;color:#a3a5ae;font-size:15.5px}
.perm code{font:600 14px ui-monospace,Menlo,Consolas,monospace;background:#2e3036;color:var(--yellow);padding:2px 8px;border-radius:6px}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px;counter-reset:s}
.steps li{list-style:none;counter-increment:s;background:#fff;border-radius:18px;padding:28px;box-shadow:0 0 0 1px var(--line)}
.steps li::before{content:counter(s);display:grid;place-content:center;width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff;font-weight:700;margin-bottom:16px}
.steps b{display:block;font-size:19px;letter-spacing:-.02em;margin-bottom:6px}
.steps span{color:var(--ink-2);font-size:16px}

details{border-top:1px solid var(--line);padding:22px 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-size:19px;font-weight:600;letter-spacing:-.01em;list-style:none;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:26px;line-height:1;color:var(--ink-3);transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:12px 0 0;color:var(--ink-2);max-width:70ch}

.final{background:var(--dark);color:#fff;border-radius:28px;padding:72px 56px;text-align:left;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.final h2{color:#fff;max-width:14ch;margin-bottom:14px}
.final p{color:#b4b6be;margin:0;font-size:18px;max-width:46ch}
.final .btn{background:#fff;color:var(--ink)}
.final .btn:hover{background:var(--yellow)}
.share{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.share a,.share button{height:42px;padding:0 16px;border-radius:10px;background:#2b2d33;color:#ececef;text-decoration:none;font:600 14.5px/1 "DM Sans",sans-serif;border:0;cursor:pointer;display:inline-flex;align-items:center}
.share a:hover,.share button:hover{background:#3a3c44}

footer{padding:48px 0 60px;color:var(--ink-3);font-size:15px}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px 32px;justify-content:space-between;align-items:center}
footer nav{display:flex;gap:24px}
footer a{text-decoration:none;color:var(--ink-2)}
footer a:hover{color:var(--ink)}

.legal h1{font-size:clamp(34px,5vw,54px);max-width:none}
.legal .wrap{max-width:760px}
.legal h2{font-size:24px;letter-spacing:-.02em;margin:40px 0 10px;max-width:none}
.legal p,.legal li{color:var(--ink-2)}

@media (max-width:980px){
  nav.links{display:none}
  .split,.split.flip{grid-template-columns:1fr;gap:36px}
  .split.flip .shot{order:0}
  .grid-6{grid-template-columns:1fr 1fr}
  .grid-6 article{border-right:0!important;padding-left:0!important;padding-right:24px!important}
  .cols,.steps{grid-template-columns:1fr}
  .perm{grid-template-columns:1fr}
  .final{grid-template-columns:1fr;padding:48px 28px}
  section{padding:76px 0}
}
@media (max-width:620px){
  .grid-6{grid-template-columns:1fr}
  .btn{width:100%;justify-content:center}
  header.top .btn{width:auto}
  .hero{padding-top:44px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}
:focus-visible{outline:3px solid var(--yellow);outline-offset:3px;border-radius:6px}

/* ---------- stacked feature sections ---------- */
.head{display:grid;grid-template-columns:1fr 1fr;gap:0 72px;align-items:end}
.head .list{margin:0}
.head+.frame{margin-top:56px}
.frame video{display:block;width:100%;aspect-ratio:16/10;background:#17181c}
.frame{border-radius:16px}
.frame img{height:auto;aspect-ratio:16/10}
@media (max-width:980px){.head{grid-template-columns:1fr;gap:28px}.head+.frame{margin-top:36px}}

/* ---------- guide pages ---------- */
.article{padding:72px 0 40px}
.article .narrow{width:min(760px,100% - 48px)}
.art-h1{font-size:clamp(34px,5vw,56px);line-height:1.06;letter-spacing:-.04em;margin:8px 0 20px;max-width:none}
.article h2{font-size:clamp(24px,3vw,32px);letter-spacing:-.03em;margin:44px 0 14px;max-width:none}
.article p,.article li{color:var(--ink-2);font-size:18px}
.article li{margin:8px 0}
.article a:not(.btn){color:var(--ink);text-decoration-thickness:1.5px;text-underline-offset:3px}
.article details{border-top:1px solid var(--line);padding:16px 0}
.article details summary{cursor:pointer;font-weight:600;font-size:18px}
.article-cta{margin-top:64px}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:8px}
.contact-grid>div{background:#fff;border-radius:18px;padding:8px 26px 26px;box-shadow:0 0 0 1px var(--line)}
.contact-grid h2{margin-top:22px;font-size:22px}
.note{margin-top:32px;font-size:16px}
.grid-6 article h3 a{text-decoration:none}.grid-6 article h3 a:hover{text-decoration:underline}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr}}