:root {
  --paper: #f6f4ee;
  --card: #ffffff;
  --ink: #17150f;
  --muted: #6f6a60;
  --faint: #9a9488;
  --hair: #e4dfd4;
  --accent: #7e2b2e;
  --accent-soft: #f3e7e6;
  --green: #3f6b4f;
  --green-soft: #e7efe9;
  --blue: #365f8f;
  --blue-soft: #e6ecf2;
  --warn: #9a7b2e;
  --warn-soft: #f3eddc;
  --side: #1b1813;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--paper); color: var(--ink); font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, input, textarea, select { font: inherit; }
a { color: inherit; }
[x-cloak] { display: none !important; }

.app { min-height: 100vh; }
.app.public { min-height: 100vh; }
.public-top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 12px 24px; background: rgba(246,244,238,.94); border-bottom: 1px solid var(--hair); backdrop-filter: blur(10px); }
.public-top.public-slim { position: relative; background: transparent; border-bottom: 0; padding-bottom: 0; }
.public-top nav { display: flex; align-items: center; gap: 16px; color: var(--muted); font-size: 14px; }
.public-top a { text-decoration: none; }
.public-brand { color: var(--ink); padding: 0; }
.public-main { max-width: 1180px; margin: 0 auto; padding: 44px 24px 80px; }
.registration-main { max-width: 1180px; margin: 0 auto; padding: 28px 24px 80px; }
.registration-top { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 28px; }
.registration-top .row { flex-wrap: wrap; justify-content: flex-end; }
.hero { min-height: calc(100vh - 86px); display: grid; align-content: center; gap: 28px; }
.signup-hero { min-height: calc(100vh - 80px); align-content: start; padding-top: 20px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr); gap: 28px; align-items: center; }
.hero h1 { font-size: clamp(38px, 6vw, 76px); letter-spacing: 0; max-width: 900px; }
.hero-copy { font-size: 18px; line-height: 1.55; color: var(--muted); max-width: 720px; }
.hero-panel { background: var(--card); border: 1px solid var(--hair); border-radius: 8px; padding: 18px; }
.hero-panel .flow { display: grid; gap: 10px; }
.flow-step { display: flex; gap: 10px; align-items: flex-start; padding: 11px; border: 1px solid var(--hair); border-radius: 8px; background: #fff; }
.flow-step b { display: block; }
.flow-step span:first-child { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-weight: 800; flex: none; }
.sidebar { position: fixed; inset: 0 auto 0 0; width: 278px; background: var(--side); color: #f6f4ee; overflow: auto; padding: 18px 14px 40px; }
.app-topbar { display: none; }
.sidebar-overlay { display: none; }
.brand { display: flex; align-items: center; gap: 10px; padding: 2px 8px 18px; }
.brand { text-decoration: none; color: inherit; }
.brand-mark { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--accent); font-weight: 800; }
.brand b { display: block; font-size: 15px; }
.brand small { display: block; color: #a9a195; font-size: 11px; margin-top: 2px; }
.sidebar p { margin: 18px 8px 8px; color: #81786b; text-transform: uppercase; letter-spacing: .08em; font-size: 10px; font-weight: 800; }
.nav-item { display: flex; align-items: center; gap: 10px; text-decoration: none; color: #bdb6aa; padding: 10px 9px; border-radius: 8px; font-size: 14px; }
.nav-item:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav-item svg { width: 18px; height: 18px; }
.side-foot { margin: 18px 8px 0; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.08); display: grid; gap: 8px; }
.side-foot a, .side-foot button { color: #bdb6aa; background: transparent; border: 0; padding: 0; text-align: left; text-decoration: none; cursor: pointer; font-size: 12px; }

.main { margin-left: 278px; padding: 26px 28px 80px; max-width: 1180px; }
.topline { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.eyebrow { margin: 0 0 6px; color: var(--accent); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; font-weight: 800; }
h1 { margin: 0; font-size: 31px; line-height: 1.1; }
h2 { margin: 24px 0 12px; font-size: 20px; }
.sub { margin: 8px 0 0; color: var(--muted); line-height: 1.5; max-width: 760px; }

.grid { display: grid; gap: 12px; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { background: var(--card); border: 1px solid var(--hair); border-radius: 8px; padding: 16px; }
.card.link { text-decoration: none; display: block; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.metric { display: grid; gap: 6px; }
.metric strong { font-size: 28px; line-height: 1; }
.metric span { color: var(--muted); font-size: 13px; }
.btn { border: 0; border-radius: 8px; background: var(--ink); color: var(--paper); padding: 11px 14px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; cursor: pointer; font-weight: 700; }
.btn.secondary { background: var(--card); color: var(--ink); border: 1px solid var(--hair); }
.btn.accent { background: var(--accent); }
.btn[disabled], button[disabled] { opacity: .45; cursor: not-allowed; }
.btn svg { width: 17px; height: 17px; }
.row { display: flex; align-items: center; gap: 10px; }
.stack { display: grid; gap: 10px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.pill { display: inline-flex; align-items: center; gap: 5px; border-radius: 999px; padding: 4px 9px; font-size: 12px; font-weight: 700; background: var(--blue-soft); color: var(--blue); }
.pill.green { background: var(--green-soft); color: var(--green); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.red { background: var(--accent-soft); color: var(--accent); }
.pill.gray { background: #ece8df; color: var(--muted); }
.input, .textarea, .select { width: 100%; border: 1px solid var(--hair); border-radius: 8px; padding: 11px 12px; background: #fff; color: var(--ink); }
.textarea { min-height: 112px; resize: vertical; }
.label { display: block; font-size: 12px; font-weight: 800; color: var(--muted); margin-bottom: 6px; }
.channel-dot { width: 28px; height: 28px; border-radius: 50%; color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 12px; flex: none; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { border-bottom: 1px solid var(--hair); padding: 11px 8px; text-align: left; font-size: 14px; }
.table th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.preview { border: 1px solid var(--hair); background: #fff; border-radius: 8px; overflow: hidden; }
.preview-media { aspect-ratio: 16 / 10; background: var(--paper); display: grid; place-items: center; color: var(--faint); }
.preview-body { padding: 13px; }
.seg { display: inline-flex; border: 1px solid var(--hair); border-radius: 8px; background: #fff; padding: 2px; gap: 2px; }
.seg button { border: 0; background: transparent; color: var(--muted); border-radius: 6px; padding: 8px 10px; cursor: pointer; font-weight: 700; }
.seg button.on { background: var(--ink); color: var(--paper); }
.check-card { display: flex; gap: 10px; align-items: flex-start; border: 1px solid var(--hair); border-radius: 8px; padding: 12px; cursor: pointer; background: #fff; }
.check-card.on { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.check-card input { margin-top: 3px; }
.limit { display: grid; gap: 5px; }
.bar { height: 8px; border-radius: 999px; background: var(--paper); overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--ink); border-radius: inherit; }
.state { border: 1px dashed var(--hair); border-radius: 8px; padding: 18px; background: rgba(255,255,255,.7); color: var(--muted); }
.timeline { display: grid; gap: 0; }
.timeline-item { display: grid; grid-template-columns: 78px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--hair); }
.timeline-item:last-child { border-bottom: 0; }
.kbd { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; background: var(--paper); border: 1px solid var(--hair); border-radius: 6px; padding: 2px 6px; }
.drawer { background: var(--paper); border: 1px solid var(--hair); border-radius: 8px; padding: 12px; }
.network-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.ux-flowbar { margin-top: 28px; display: flex; align-items: center; justify-content: space-between; gap: 16px; background: #fff; border: 1px solid var(--hair); border-radius: 8px; padding: 14px; }
.ux-flowbar .row { flex-wrap: wrap; justify-content: flex-end; }
.flow-map { display: grid; gap: 12px; }
.flow-lane { display: grid; grid-template-columns: 180px 1fr; gap: 12px; align-items: stretch; }
.flow-lane-title { background: var(--side); color: var(--paper); border-radius: 8px; padding: 14px; }
.flow-lane-title b { display: block; margin-bottom: 6px; }
.flow-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; }
.flow-node { display: flex; flex-direction: column; gap: 8px; min-height: 128px; padding: 12px; background: #fff; border: 1px solid var(--hair); border-radius: 8px; text-decoration: none; }
.flow-node b { font-size: 14px; }
.flow-node .pill { align-self: flex-start; }
.contract-list { display: grid; gap: 10px; }
.contract-item { display: grid; grid-template-columns: 180px 1fr; gap: 12px; padding: 12px; border: 1px solid var(--hair); border-radius: 8px; background: #fff; }

@media (max-width: 820px) {
  .public-top { align-items: flex-start; flex-direction: column; padding: 12px 14px; }
  .public-main { padding: 24px 14px 60px; }
  .registration-main { padding: 16px 14px 60px; }
  .registration-top { align-items: flex-start; flex-direction: column; }
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; }
  .app-topbar { position: sticky; top: 0; z-index: 35; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 12px; background: rgba(246,244,238,.96); border-bottom: 1px solid var(--hair); backdrop-filter: blur(10px); }
  .app-topbar .brand { padding: 0; min-width: 0; }
  .app-topbar .brand small { display: none; }
  .app-topbar .btn { padding: 9px 10px; }
  .app-menu-btn svg { width: 18px; height: 18px; }
  .sidebar { position: fixed; inset: 0 auto 0 0; z-index: 50; width: min(84vw, 310px); min-height: 100vh; transform: translateX(-104%); transition: transform .18s ease; box-shadow: 18px 0 40px rgba(0,0,0,.18); }
  .sidebar-overlay { position: fixed; inset: 0; z-index: 45; display: block; border: 0; background: rgba(23,21,15,.36); opacity: 0; pointer-events: none; transition: opacity .18s ease; }
  body.nav-open { overflow: hidden; }
  body.nav-open .sidebar { transform: translateX(0); }
  body.nav-open .sidebar-overlay { opacity: 1; pointer-events: auto; }
  .main { margin-left: 0; padding: 18px 14px 60px; }
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
  .topline { display: block; }
  .ux-flowbar { align-items: stretch; flex-direction: column; }
  .flow-lane, .contract-item { grid-template-columns: 1fr; }
}