/* ============================================================
   shisu — shared design system for sub-pages
   Monochrome aluminium grey + graphite. Matches index.html.
   ============================================================ */
:root{
  --bg:#ffffff;
  --grey:#f6f3ec;
  --grey-2:#eee8df;
  --soft:#faf8f4;
  --graphite:#1d1d1f;
  --accent:#e5531c;
  --accent-d:#c7440f;
  --accent-soft:#fbe9df;
  --ink:#1d1d1f;
  --ink-2:#56585c;
  --ink-3:#8a8c91;
  --line:#e6e0d7;
  --line-2:#efe9e0;
  --al-a:#7c7f85;
  --al-b:#a6aab0;
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Segoe UI",system-ui,sans-serif;
  --maxw:1140px;
  --shadow:0 1px 2px rgba(20,22,26,.04),0 14px 40px -18px rgba(20,22,26,.16);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;letter-spacing:-.012em;line-height:1.5;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.038em;line-height:1.05;color:var(--ink);}
p{margin:0;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-weight:500;font-size:15px;
  border-radius:100px;padding:12px 22px;cursor:pointer;border:1px solid transparent;line-height:1;
  transition:background .16s ease,color .16s ease,border-color .16s ease;white-space:nowrap;}
.btn .arr{transition:transform .2s ease;}
.btn:hover .arr{transform:translateX(3px);}
.btn-dark{background:var(--graphite);color:#fff;}
.btn-dark:hover{background:#000;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--grey);}
.btn-lg{padding:13px 24px;font-size:15.5px;}

/* nav */
.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.78);
  backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid transparent;transition:border-color .2s;}
.nav.scrolled{border-color:var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:62px;}
.brand{font-size:22px;font-weight:600;letter-spacing:-.045em;
  background:linear-gradient(180deg,var(--al-a),var(--al-b));-webkit-background-clip:text;background-clip:text;color:transparent;}
.nav-right{display:flex;align-items:center;gap:18px;}
.nav-signin{font-size:14.5px;font-weight:500;color:var(--ink-2);}
.nav-signin:hover{color:var(--ink);}

/* mobile hamburger → X */
.nav-burger{display:none;align-items:center;justify-content:center;width:40px;height:40px;border:none;background:none;color:var(--ink);padding:0;cursor:pointer;}
.nav-burger:hover{opacity:.65;}
.nav-burger svg{width:22px;height:22px;overflow:visible;}
.nav-burger .burger-line{stroke:currentColor;stroke-width:2;stroke-linecap:round;transform-origin:12px 12px;transition:transform .18s ease,opacity .18s ease;}
.burger-line-1{transform:translateY(-5px);}
.burger-line-3{transform:translateY(5px);}
.nav.is-open .burger-line-1{transform:rotate(45deg);}
.nav.is-open .burger-line-2{opacity:0;}
.nav.is-open .burger-line-3{transform:rotate(-45deg);}
.nav-mobile-panel{display:none;}
.nav-mobile-links{display:flex;flex-direction:column;}
.nav-mobile-links a{font-size:21px;font-weight:600;letter-spacing:-.02em;color:var(--ink);padding:15px 0;border-bottom:1px solid var(--line);}
.nav-mobile-actions{display:flex;flex-direction:column;gap:14px;padding:22px 0 40px;}
.nav-mobile-actions .nav-signin{font-size:18px;font-weight:600;color:var(--ink);}
.nav-mobile-actions .btn{justify-content:center;font-size:16px;}
@media(max-width:760px){
  .nav-right{display:none;}
  .nav-burger{display:inline-flex;}
  .nav.is-open{position:fixed;inset:0;background:rgba(255,255,255,.96);backdrop-filter:saturate(180%) blur(22px);-webkit-backdrop-filter:saturate(180%) blur(22px);overflow-y:auto;}
  .nav.is-open .nav-mobile-panel{display:block;}
}

/* page header */
.page{padding-top:40px;padding-bottom:56px;}
.page .eyebrow{font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:16px;}
.page h1{font-size:clamp(34px,5vw,52px);letter-spacing:-.04em;line-height:1.03;}
.page .page-sub{margin-top:18px;color:var(--ink-2);font-size:19px;max-width:560px;line-height:1.55;}
.page .updated{margin-top:14px;color:var(--ink-3);font-size:14px;}

/* prose (legal / content) */
.prose{max-width:720px;padding-bottom:96px;}
.prose h2{font-size:21px;letter-spacing:-.02em;margin:42px 0 12px;}
.prose h3{font-size:16.5px;letter-spacing:-.01em;margin:26px 0 8px;}
.prose p{color:var(--ink-2);font-size:16px;line-height:1.72;margin:0 0 14px;}
.prose ul,.prose ol{color:var(--ink-2);font-size:16px;line-height:1.72;margin:0 0 14px;padding-left:22px;}
.prose li{margin:0 0 6px;}
.prose a{color:var(--ink);text-decoration:underline;text-underline-offset:2px;text-decoration-color:var(--line);}
.prose a:hover{text-decoration-color:var(--ink);}
.prose strong{color:var(--ink);font-weight:600;}
.prose hr{border:none;border-top:1px solid var(--line);margin:36px 0;}

/* careers */
.careers-list{max-width:760px;padding-bottom:40px;}
.job{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;border-top:1px solid var(--line);}
.job:first-child{border-top:none;}
.job .job-l h3{font-size:18px;letter-spacing:-.02em;}
.job .job-l .job-meta{margin-top:5px;font-size:14px;color:var(--ink-3);}
.job .job-go{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--ink-2);white-space:nowrap;}
.job:hover .job-go{color:var(--ink);}
.note-card{max-width:760px;margin:24px 0 96px;background:var(--grey);border:1px solid var(--line);border-radius:18px;padding:26px 28px;}
.note-card h3{font-size:17px;margin-bottom:8px;}
.note-card p{color:var(--ink-2);font-size:15px;line-height:1.6;}

/* form */
.form-wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;padding-bottom:100px;}
@media(max-width:840px){.form-wrap{grid-template-columns:1fr;gap:40px;}}
.form-aside h1{font-size:clamp(32px,4.4vw,46px);letter-spacing:-.04em;line-height:1.04;}
.form-aside .page-sub{margin-top:18px;color:var(--ink-2);font-size:18px;line-height:1.55;max-width:420px;}
.form-points{margin-top:30px;display:grid;gap:14px;}
.form-points .fp{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.form-points .fp svg{width:18px;height:18px;flex:none;margin-top:2px;color:var(--ink);}
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:7px;}
.field input,.field select{width:100%;font-family:var(--sans);font-size:15px;color:var(--ink);
  background:var(--soft);border:1px solid var(--line);border-radius:11px;padding:12px 13px;appearance:none;
  transition:border-color .15s ease,background .15s ease;}
.field select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238a8c91' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 13px center;padding-right:34px;}
.field input::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus{outline:none;border-color:var(--ink-3);background:#fff;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media(max-width:480px){.form-row{grid-template-columns:1fr;}}
.btn-submit{width:100%;justify-content:center;background:var(--graphite);color:#fff;border:none;
  font-family:var(--sans);font-weight:600;font-size:15px;border-radius:100px;padding:14px;margin-top:6px;cursor:pointer;
  transition:background .16s ease;}
.btn-submit:hover{background:#000;}
.btn-submit:disabled{opacity:.6;cursor:default;}
.fineprint{font-size:12px;color:var(--ink-3);text-align:center;margin-top:14px;line-height:1.5;}
.fineprint a{color:var(--ink-2);text-decoration:underline;text-underline-offset:2px;}
.confirm{text-align:center;padding:40px 20px;}
.confirm .check{width:48px;height:48px;border-radius:50%;background:var(--grey);display:grid;place-items:center;margin:0 auto 18px;}
.confirm h2{font-size:24px;letter-spacing:-.03em;margin-bottom:8px;}
.confirm p{color:var(--ink-2);font-size:16px;line-height:1.6;max-width:360px;margin:0 auto;}

/* footer */
.foot{background:#fff;border-top:1px solid var(--line);padding:56px 0 40px;margin-top:40px;}
.foot-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;align-items:center;}
.foot .brand{font-size:20px;}
.foot-links{display:flex;gap:26px;font-size:14.5px;}
.foot-links a{color:var(--ink-2);transition:color .15s ease;}
.foot-links a:hover{color:var(--ink);}
.foot-base{display:flex;justify-content:space-between;align-items:center;margin-top:40px;padding-top:24px;
  border-top:1px solid var(--line-2);color:var(--ink-3);font-size:13px;flex-wrap:wrap;gap:12px;}