:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --ink: #1a1a1a;
  --ink-2: #404040;
  --ink-3: #6b6b6b;
  --rule: #e5e5e5;
  --rule-strong: #cfcfcf;
  --accent: #2563eb;
  --accent-soft: #eff5ff;
  --danger: #b91c1c;
  --warning: #b45309;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e10;
    --surface: #18181b;
    --ink: #f4f4f5;
    --ink-2: #d4d4d8;
    --ink-3: #a1a1aa;
    --rule: #27272a;
    --rule-strong: #3f3f46;
    --accent: #60a5fa;
    --accent-soft: #1e293b;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header { display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px; border-bottom: 1px solid var(--rule); background: var(--surface); }
.brand { display: flex; align-items: baseline; gap: 8px; }
.brand-dot { width: 10px; height: 10px; border-radius: 999px; background: var(--accent); display: inline-block; align-self: center; }
.brand-name { font-weight: 600; font-size: 1.05rem; letter-spacing: -0.01em; }
.brand-suite { color: var(--ink-3); font-size: 0.85rem; }
nav { display: flex; align-items: center; gap: 18px; font-size: 0.95rem; }
.nav-link { color: var(--ink-2); padding: 6px 10px; border-radius: 6px; }
.nav-link:hover { background: var(--accent-soft); text-decoration: none; }
.nav-link.active { color: var(--accent); }
.me { color: var(--ink-3); font-size: 0.85rem; }

main { max-width: 940px; margin: 24px auto 64px; padding: 0 20px; }
footer { text-align: center; color: var(--ink-3); font-size: 0.8rem; padding: 20px;
  border-top: 1px solid var(--rule); margin-top: 40px; }

h1 { font-size: 1.7rem; margin: 0 0 0.5em; letter-spacing: -0.01em; }
h2 { font-size: 1.15rem; margin: 1.4em 0 0.5em; color: var(--ink-2); font-weight: 600; }

.loading, .empty { padding: 32px; text-align: center; color: var(--ink-3); }
.error { padding: 16px; background: #fef2f2; border: 1px solid #fecaca; color: var(--danger);
  border-radius: 6px; margin: 16px 0; }
@media (prefers-color-scheme: dark) {
  .error { background: #2b1414; border-color: #5b1f1f; color: #fca5a5; }
}

.toolbar { display: flex; gap: 8px; align-items: center; margin: 12px 0 20px; flex-wrap: wrap; }
.toolbar input[type=search] { flex: 1; min-width: 220px; padding: 9px 12px; font-size: 0.95rem;
  background: var(--surface); color: var(--ink); border: 1px solid var(--rule-strong); border-radius: 6px; }
.toolbar input[type=search]:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
.toolbar select { padding: 9px 10px; background: var(--surface); color: var(--ink);
  border: 1px solid var(--rule-strong); border-radius: 6px; font-size: 0.9rem; }
.toolbar .right { margin-left: auto; }

.btn { display: inline-block; padding: 8px 14px; font-size: 0.9rem; font-weight: 500;
  border: 1px solid var(--rule-strong); border-radius: 6px; background: var(--surface);
  color: var(--ink); cursor: pointer; }
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); color: white; border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.1); color: white; }
.btn.danger { color: var(--danger); border-color: #f5b6b6; }
.btn.danger:hover { background: #fef2f2; }

.cards { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--rule);
  border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; }
.card { background: var(--surface); padding: 14px 18px; display: flex; gap: 14px;
  align-items: center; cursor: pointer; }
.card:hover { background: var(--accent-soft); }
.card .avatar { width: 36px; height: 36px; border-radius: 999px; background: var(--accent);
  color: white; display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; font-weight: 600; flex-shrink: 0; }
.card .grow { flex: 1; min-width: 0; }
.card .name { font-weight: 600; color: var(--ink); }
.card .sub { color: var(--ink-3); font-size: 0.85rem; margin-top: 2px; }
.card .meta { color: var(--ink-3); font-size: 0.75rem; flex-shrink: 0; }
.card .tag { display: inline-block; font-size: 0.7rem; padding: 1px 7px; border-radius: 999px;
  border: 1px solid var(--rule-strong); margin-left: 6px; color: var(--ink-3); }

.detail { background: var(--surface); border: 1px solid var(--rule); border-radius: 8px;
  padding: 28px; }
.detail .head { display: flex; align-items: center; gap: 18px; margin-bottom: 24px; }
.detail .head .avatar { width: 56px; height: 56px; font-size: 1.15rem; }
.detail .head h1 { margin: 0; }
.detail .head .sub { color: var(--ink-3); margin-top: 4px; font-size: 0.95rem; }
.detail .channels { display: grid; gap: 8px; }
.detail .channel { display: flex; gap: 12px; align-items: center; padding: 10px 12px;
  border: 1px solid var(--rule); border-radius: 6px; }
.detail .channel .k { color: var(--ink-3); font-size: 0.8rem; text-transform: uppercase;
  letter-spacing: 0.05em; min-width: 50px; }
.detail .channel .v { flex: 1; color: var(--ink); }
.detail .channel .pri { color: var(--accent); font-size: 0.75rem; }
.detail .actions { margin-top: 24px; display: flex; gap: 8px; }

.form { background: var(--surface); border: 1px solid var(--rule); border-radius: 8px;
  padding: 28px; display: grid; gap: 16px; }
.form label { display: grid; gap: 4px; font-size: 0.85rem; color: var(--ink-2); }
.form input[type=text], .form input[type=email], .form input[type=tel], .form textarea,
.form select {
  padding: 9px 11px; font-size: 0.95rem; background: var(--bg); color: var(--ink);
  border: 1px solid var(--rule-strong); border-radius: 6px; font-family: inherit;
}
.form input:focus, .form textarea:focus, .form select:focus {
  outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent);
}
.form textarea { min-height: 90px; resize: vertical; }
.form .channels { display: grid; gap: 8px; }
.form .channel-row { display: grid; grid-template-columns: 80px 1fr 90px auto; gap: 6px; align-items: center; }
.form .channel-row .x { background: none; border: none; color: var(--ink-3); cursor: pointer; font-size: 1.1rem; }
.form .channel-row .x:hover { color: var(--danger); }
.form .actions { display: flex; gap: 8px; margin-top: 8px; }
.form .add-channel { font-size: 0.85rem; color: var(--accent); cursor: pointer; background: none; border: none; padding: 0; text-align: left; }

.bcrumb { color: var(--ink-3); font-size: 0.85rem; margin-bottom: 16px; }
.bcrumb a { color: var(--ink-3); }
.bcrumb a:hover { color: var(--accent); }