:root {
  --bg: #0a0a0a;
  --bg2: #111;
  --fg: #f5f5f5;
  --muted: #8a8a8a;
  --accent: #00C853;
  --card: #151515;
  --border: #232323;
  --sidebar-w: 218px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: Inter, -apple-system, system-ui, sans-serif;
  line-height: 1.6;
}
svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }

/* sidebar */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; width: var(--sidebar-w);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; z-index: 20;
  background: var(--bg);
}
.sidebar .logo {
  font-size: 1.9rem; font-weight: 800; color: var(--fg);
  text-decoration: none; padding: 1.1rem 1.3rem 0.8rem;
}
.side-nav { display: flex; flex-direction: column; padding: 0.25rem 0.6rem; flex: 1; overflow-y: auto; }
.side-nav a {
  display: flex; align-items: center; gap: 0.7rem;
  color: var(--muted); text-decoration: none;
  padding: 0.55rem 0.7rem; border-radius: 8px;
  font-size: 0.95rem; font-weight: 500; margin: 0.1rem 0;
}
.side-nav a:hover { color: var(--fg); background: var(--card); }
.side-nav a.active { color: var(--fg); background: var(--card); }
.side-nav a.muted-link { color: #555; }
.side-footer {
  padding: 1rem 1.3rem; font-weight: 700; font-size: 0.95rem;
  border-top: 1px solid var(--border);
}
.side-footer span { display: block; font-weight: 400; color: var(--muted); font-size: 0.75rem; margin-top: 0.2rem; }

/* topbar */
.topbar {
  position: sticky; top: 0; z-index: 15;
  margin-left: var(--sidebar-w);
  display: flex; align-items: center; gap: 1rem;
  padding: 0.8rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10,10,10,0.92); backdrop-filter: blur(8px);
}
.icon-btn { background: none; border: none; color: var(--muted); font-size: 1.15rem; cursor: pointer; padding: 0.3rem 0.5rem; }
.icon-btn:hover { color: var(--fg); }
.search {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 0.45rem 0.8rem; flex: 1; max-width: 560px; margin: 0 auto;
}
.search svg { width: 15px; height: 15px; }
.search input {
  background: none; border: none; outline: none; color: var(--fg);
  font-family: inherit; font-size: 0.9rem; width: 100%;
}
.top-right { display: flex; align-items: center; gap: 0.7rem; }

/* buttons */
.btn {
  padding: 0.6rem 1.4rem; border-radius: 999px;
  text-decoration: none; font-weight: 600; font-size: 0.9rem;
  border: 1px solid var(--border); display: inline-block;
}
.btn.pill, .btn.primary { background: var(--fg); color: #000; border-color: var(--fg); }
.btn.dark, .btn.secondary { background: var(--card); color: var(--fg); }
.btn.pill:hover { opacity: 0.9; }
.btn.danger { color: #f66; border-color: #f66; }
button.btn { cursor: pointer; font-family: inherit; }

/* main */
main { margin-left: var(--sidebar-w); max-width: none; padding: 2rem 2.5rem; }
.chain-warn { margin-left: var(--sidebar-w); background: #3a1c1c; color: #f88; text-align: center; padding: 0.5rem; font-size: 0.9rem; }
.disclosure {
  margin-left: var(--sidebar-w);
  text-align: center; padding: 2rem; color: #555;
  font-size: 0.85rem; border-top: 1px solid var(--border);
}

/* hero */
.hero { padding: 3rem 0; }
.hero h1 { font-size: 3.6rem; font-weight: 800; letter-spacing: -0.04em; line-height: 1.05; }
.hero .tagline { font-size: 1.4rem; color: var(--accent); margin: 1rem 0; font-weight: 600; }
.hero .sub { color: var(--muted); max-width: 620px; margin: 0 0 2rem; }
.cta { display: flex; gap: 1rem; }
.how, .compare { padding: 2rem 0; }
.how ol { padding-left: 1.5rem; }
.how li { margin: 0.5rem 0; color: var(--muted); }
.compare table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.compare th, .compare td { padding: 0.75rem; border: 1px solid var(--border); text-align: left; }
.compare th { background: var(--card); }
.compare .honest { color: var(--muted); font-style: italic; margin-top: 1rem; }
h1, h2, h3 { margin: 1.5rem 0 0.5rem; }
p { margin: 0.5rem 0; }
ul { padding-left: 1.5rem; margin: 0.5rem 0; }
code { font-family: JetBrains Mono, monospace; background: var(--card); padding: 0.1rem 0.3rem; border-radius: 3px; }

/* dapp components */
.mono { font-family: JetBrains Mono, monospace; font-size: 0.85em; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.num { text-align: right; font-family: JetBrains Mono, monospace; }
.empty { color: var(--muted); padding: 2rem 0; text-align: center; }
.wallet { cursor: pointer; }
.wallet.connected { color: var(--accent); border-color: var(--accent); }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 1.4rem; margin: 1rem 0;
}
.card-head { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.5rem; }
.stat { display: flex; justify-content: space-between; padding: 0.3rem 0; border-bottom: 1px dashed var(--border); }
.stat span { color: var(--muted); }
.badge {
  display: inline-block; padding: 0.15rem 0.6rem; border-radius: 999px;
  font-size: 0.75rem; font-weight: 600; border: 1px solid var(--border);
}
.badge.lock { color: #f5f5f5; background: #333; }
.badge.open, .badge.ok { color: var(--accent); border-color: var(--accent); }
.badge.warn { color: #e0a030; border-color: #e0a030; }
.badge.err { color: #f66; border-color: #f66; }
.form-row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin: 1rem 0; }
.form-row input, .form-row select, .filters select,
.vform input, .vform select {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  color: var(--fg); padding: 0.6rem 0.9rem; font-family: inherit;
}
.vform input::placeholder { color: var(--muted); opacity: 0.7; }
.vform input:focus, .vform select:focus { outline: none; border-color: var(--accent); }
.filters { display: flex; gap: 0.75rem; margin: 1rem 0; }
.table-wrap { overflow-x: auto; }
.table-wrap table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.table-wrap th, .table-wrap td { padding: 0.6rem; border-bottom: 1px solid var(--border); text-align: left; font-size: 0.9rem; }
.table-wrap td.num { text-align: right; }
.stepper { list-style: none; padding: 0; }
.step { border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; margin: 1rem 0; }
.step h3 { margin-top: 0; }
.status { color: var(--muted); font-size: 0.9rem; margin-top: 0.5rem; }
article.doc { max-width: 800px; }
article.doc table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.9rem; }
article.doc th, article.doc td { border: 1px solid var(--border); padding: 0.5rem 0.75rem; text-align: left; }
article.doc pre { background: var(--card); padding: 1rem; border-radius: 8px; overflow-x: auto; font-size: 0.85rem; }
article.doc hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }

.sidebar.hidden { display: none; }
body:has(.sidebar.hidden) .topbar,
body:has(.sidebar.hidden) main,
body:has(.sidebar.hidden) .disclosure,
body:has(.sidebar.hidden) .chain-warn { margin-left: 0; }

/* responsive: collapse sidebar under 900px */
@media (max-width: 900px) {
  .sidebar {
    width: 60px;
  }
  .sidebar .side-nav a { justify-content: center; padding: 0.55rem; }
  .sidebar .side-nav a { font-size: 0; }
  .sidebar .logo { padding: 1rem 0; text-align: center; }
  .side-footer { display: none; }
  .topbar, main, .disclosure, .chain-warn { margin-left: 60px; }
}

/* integrate page */
.integrate-hero { padding: 1.8rem 2rem; }
.integrate-hero h1 { margin-top: 0; font-size: 1.9rem; letter-spacing: -0.02em; }
.integrate-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.2rem; align-items: start; }
.step-card { display: flex; gap: 1rem; align-items: flex-start; margin: 0.8rem 0; }
.step-card h3 { margin: 0 0 0.15rem; font-size: 1rem; }
.step-num {
  width: 26px; height: 26px; border-radius: 50%; flex: none;
  background: var(--fg); color: #000; font-weight: 700; font-size: 0.8rem;
  display: flex; align-items: center; justify-content: center;
}
.preview-card { text-align: left; }
.preview-amt { font-size: 2.4rem; font-weight: 700; }
.preview-card hr { border: none; border-top: 1px solid var(--border); margin: 1rem 0; }
.preview-rows { display: flex; flex-direction: column; gap: 0.4rem; }
.preview-row { display: flex; justify-content: space-between; font-size: 0.9rem; }
.preview-row span:first-child { font-family: JetBrains Mono, monospace; }
@media (max-width: 900px) { .integrate-grid { grid-template-columns: 1fr; } }

/* page head + mini styles */
.page-head { padding: 1.6rem 2rem; }
.page-head h1 { margin: 0 0 0.3rem; font-size: 1.9rem; letter-spacing: -0.02em; }
.page-head .tagline { color: var(--accent); font-weight: 600; font-size: 1.1rem; }
.step-mini { padding: 0.5rem 0; border-bottom: 1px dashed var(--border); color: var(--muted); }
.step-mini:last-child { border-bottom: none; }
.mini-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; margin-top: 0.5rem; }
.mini-table th, .mini-table td { padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); text-align: left; }
.mini-table th { background: var(--bg2); }
.steps-col .card { margin: 0.8rem 0; }
.card h3 { margin-top: 0; }

/* stats cards */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin: 1rem 0; }
.stat-card { margin: 0; text-align: left; }
.stat-num { font-size: 1.6rem; font-weight: 700; }
@media (max-width: 900px) { .stats-row { grid-template-columns: repeat(2, 1fr); } }

/* pending tx toast */
.tx-pending {
  position: fixed; bottom: 16px; right: 16px; z-index: 60;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 0.8rem 1rem; max-width: 320px; font-size: 0.85rem;
}
.tx-pending a { color: var(--accent); font-family: JetBrains Mono, monospace; }
.tx-pending .row { display: flex; justify-content: space-between; gap: 1rem; padding: 0.15rem 0; }

/* vertical form */
.vform { display: flex; flex-direction: column; gap: 1rem; max-width: 560px; }
.field { display: flex; flex-direction: column; gap: 0.3rem; }
.field-label { font-size: 0.85rem; font-weight: 600; }
.field-hint { font-size: 0.78rem; color: var(--muted); }
.field input, .field select { width: 100%; }
.handle-row { display: flex; gap: 0.5rem; }
.handle-row select { flex: 0 0 110px; }
.handle-row input { flex: 1; }

.copy-btn { padding: 0.1rem 0.45rem; font-size: 0.7rem; margin-left: 0.4rem; }

/* handle preview suggestion */
.handle-preview { display: flex; align-items: center; gap: 0.6rem; background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 0.45rem 0.7rem; margin-top: 0.35rem; max-width: 420px; }
.hp-avatar { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; flex: 0 0 34px; }
.hp-empty { background: var(--card); border: 1px solid var(--border); }
.hp-name { font-size: 0.88rem; }
.hp-verified { display: inline-flex; margin-left: 0.15rem; vertical-align: middle; }

/* payments feed */
.pay-feed { display: flex; flex-direction: column; gap: 0.8rem; }
.pay-card {
  display: block; background: var(--bg); border: 1px solid var(--border);
  border-radius: 12px; padding: 1rem 1.2rem; color: inherit; text-decoration: none;
  transition: border-color 0.15s;
}
.pay-card:hover { border-color: var(--accent); }
.pay-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.pay-amount .big { font-size: 1.4rem; font-weight: 600; display: block; }
.pay-amount .small { display: block; }
.pay-meta { text-align: right; display: flex; flex-direction: column; gap: 0.15rem; font-size: 0.82rem; }
.split-bar { display: flex; height: 6px; border-radius: 3px; overflow: hidden; background: var(--card); margin: 0.8rem 0 0.55rem; }
.seg { display: block; height: 100%; }
.seg-creator { background: var(--accent); }
.seg-burn { background: #e5484d; }
.seg-buyback { background: #4f7de0; }
.seg-protocol { background: #a0a0a0; }
.seg-holders { background: #b07de0; }
.split-legend { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; font-size: 0.78rem; color: var(--muted); }
.lg-item { display: inline-flex; align-items: center; gap: 0.35rem; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.seg-creator { background: var(--accent); } .dot.seg-burn { background: #e5484d; }
.dot.seg-buyback { background: #4f7de0; } .dot.seg-protocol { background: #a0a0a0; }
.dot.seg-holders { background: #b07de0; }