:root {
  --bg: #f5f3ee;
  --bg-card: #ffffff;
  --bg-soft: #ecebe4;
  --ink: #1a1d24;
  --ink-2: #4b5260;
  --ink-3: #8a8e98;
  --line: #2a2f3a;
  --line-soft: #c8c5bc;
  --line-faint: #e3e0d6;
  --accent: #0ea5a5;
  --accent-2: #f59e0b;
  --warn: #b91c1c;
  --planned: #9333ea;
  --shadow-1: 0 1px 2px rgba(20, 25, 40, 0.05), 0 4px 14px rgba(20, 25, 40, 0.06);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body.admin {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.dim { color: var(--ink-3); }
.small { font-size: 12px; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }
code { font-family: 'JetBrains Mono', monospace; background: var(--bg-soft); padding: 1px 6px; border-radius: 3px; font-size: 12px; }

/* Top bar */
.admin-top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 14px 28px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--line-faint);
  position: sticky;
  top: 0;
  z-index: 50;
}
.admin-brand a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.admin-brand a:hover { color: var(--accent); }
.admin-nav {
  display: flex;
  gap: 6px;
}
.admin-nav a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 7px 14px;
  border-radius: 4px;
  color: var(--ink-2);
}
.admin-nav a:hover { background: var(--bg-soft); color: var(--ink); }
.admin-nav a.active { background: var(--ink); color: var(--bg-card); }

.admin-user {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}
.btn-link {
  border: none;
  background: transparent;
  color: var(--ink-2);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  padding: 0;
}
.btn-link:hover { color: var(--accent); }

.admin-main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 28px 28px 80px;
}

/* Page head */
.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
}
.page-head h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.005em;
}

/* Buttons */
.btn {
  border: 1px solid var(--line);
  background: var(--bg-card);
  color: var(--ink);
  padding: 9px 14px;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  border-radius: 4px;
  text-decoration: none;
  display: inline-block;
}
.btn:hover { background: var(--ink); color: var(--bg-card); }
.btn.primary { background: var(--ink); color: var(--bg-card); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); }
.btn.danger { border-color: var(--warn); color: var(--warn); background: transparent; }
.btn.danger:hover { background: var(--warn); color: var(--bg-card); }
.btn.block { width: 100%; padding: 12px; font-size: 13px; }

/* Login page */
.admin-login {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background: var(--bg);
}
.admin-login .admin-card { max-width: 380px; width: 100%; padding: 32px 32px 28px; }
.admin-card-head { margin-bottom: 18px; }
.admin-card-head h1 { margin: 0; font-size: 24px; font-weight: 800; }
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.field span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}
.field span small {
  text-transform: none;
  letter-spacing: 0.02em;
  color: var(--ink-3);
  font-weight: 400;
  margin-left: 4px;
}
.field input, .field select, .field textarea {
  border: 1.5px solid var(--line-soft);
  border-radius: 5px;
  padding: 9px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  background: var(--bg-card);
  color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-err {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  color: #991b1b;
  font-size: 12px;
  padding: 8px 12px;
  border-radius: 4px;
  margin: 0 0 12px;
  font-family: 'JetBrains Mono', monospace;
}
.flash {
  background: #ecfdf5;
  border: 1px solid #6ee7b7;
  color: #065f46;
  font-size: 13px;
  padding: 10px 14px;
  border-radius: 4px;
  margin: 0 0 16px;
}
.back { display: inline-block; margin-top: 18px; font-size: 12px; }

/* Cards */
.admin-card {
  background: var(--bg-card);
  border: 1px solid var(--line-faint);
  border-radius: 6px;
  padding: 20px;
  box-shadow: var(--shadow-1);
}
.admin-card h2 {
  margin: 0 0 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}
.card-section { margin-bottom: 18px; }
.card-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  border-top: 1px solid var(--line-faint);
  padding-top: 16px;
}

.two-col {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; }
}

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--line-faint);
  border-radius: 6px;
  overflow: hidden;
  font-size: 13px;
}
.data-table thead th {
  text-align: left;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  font-weight: 600;
  padding: 10px 14px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line-faint);
}
.data-table tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-faint);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--bg-soft); }
.data-table .empty-row {
  text-align: center;
  padding: 32px 16px;
  color: var(--ink-3);
}
.data-table .code {
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent);
}
.data-table .pin { letter-spacing: 0.3em; color: var(--ink-3); }
.data-table .ua { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.data-table .row-actions { text-align: right; white-space: nowrap; font-size: 16px; color: var(--ink-2); }
.data-table .row-actions a { padding: 0 6px; }
.data-table .row-actions a:hover { color: var(--accent); }
.data-table tbody td a { color: var(--ink); border-bottom: 1px dashed var(--line-soft); }
.data-table tbody td a:hover { color: var(--accent); border-color: var(--accent); }

/* Status pills */
.status {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 3px;
}
.status-published { background: #ecfdf5; color: #047857; }
.status-draft { background: #fef3c7; color: #92400e; }
.status-archived { background: var(--bg-soft); color: var(--ink-3); }
.status-success { background: #ecfdf5; color: #047857; }
.status-wrong_pin { background: #fef2f2; color: #991b1b; }
.status-wrong_password { background: #fef2f2; color: #991b1b; }
.status-rate_limited { background: #fff7ed; color: #9a3412; }
.status-locked { background: var(--ink); color: var(--bg-card); }
.status-pin { background: #e0f2fe; color: #075985; }
.status-admin { background: #f5f3ff; color: #5b21b6; }

.filters {
  display: flex;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--line-faint);
  border-radius: 4px;
  padding: 3px;
}
.filters a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border-radius: 3px;
  color: var(--ink-2);
}
.filters a:hover { background: var(--bg-soft); color: var(--ink); }
.filters a.active { background: var(--ink); color: var(--bg-card); }

/* Tabs */
.ph-left { display: flex; flex-direction: column; gap: 4px; }
.back-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.back-link:hover { color: var(--accent); }
.site-code-pill {
  display: inline-block;
  background: var(--ink);
  color: var(--bg-card);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 3px;
  vertical-align: middle;
  margin-left: 8px;
}
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1.5px solid var(--line-soft);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.tabs a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 10px 16px;
  color: var(--ink-2);
  border-bottom: 2px solid transparent;
  margin-bottom: -1.5px;
}
.tabs a:hover { color: var(--ink); }
.tabs a.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 700; }

/* Add row form (above each editor table) */
.add-row {
  background: var(--bg-card);
  border: 1px solid var(--line-faint);
  border-radius: 6px;
  padding: 14px 16px;
  margin-bottom: 16px;
}
.add-row h3 {
  margin: 0 0 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}
.row-grid {
  display: grid;
  gap: 8px;
  align-items: center;
}
.row-grid + .row-grid { margin-top: 8px; }
.row-grid input, .row-grid select {
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: 7px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  min-width: 0;
}
.row-grid input:focus, .row-grid select:focus { outline: none; border-color: var(--accent); }
.row-grid-nodes      { grid-template-columns: 110px 160px 1fr 1.2fr 1fr auto 80px 80px auto; }
.row-grid-cables     { grid-template-columns: 110px 130px 130px 1fr auto auto; }
.row-grid-endpoints  { grid-template-columns: 130px 1fr 1fr 1.4fr 80px 80px auto; }
.row-grid-splice-1   { grid-template-columns: 130px 130px 110px 130px 130px; }
.row-grid-splice-2   { grid-template-columns: 220px 1fr auto auto; }
.row-grid label.check { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--ink-2); display: flex; align-items: center; gap: 4px; }
.splice-target { display: flex; gap: 6px; }
.splice-target select, .splice-target input { flex: 1; }

/* Editable tables — compact inputs in cells */
.edit-table input, .edit-table select {
  border: 1px solid transparent;
  background: transparent;
  padding: 4px 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  width: 100%;
  border-radius: 3px;
}
.edit-table input:hover, .edit-table select:hover { background: var(--bg-soft); }
.edit-table input:focus, .edit-table select:focus { background: white; border-color: var(--accent); outline: none; }
.edit-table .center { text-align: center; }
.edit-table .num input { text-align: right; }
.edit-table .row-form { display: contents; }
.edit-table .row-del { width: 36px; text-align: center; }
.btn-mini {
  border: 1px solid var(--line-soft);
  background: var(--bg-card);
  color: var(--ink);
  padding: 4px 10px;
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 3px;
}
.btn-mini:hover { background: var(--ink); color: var(--bg-card); }
.btn-mini.danger { color: var(--warn); border-color: var(--warn); padding: 4px 8px; }
.btn-mini.danger:hover { background: var(--warn); color: var(--bg-card); }

/* Splices filter bar */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  background: var(--bg-card);
  border: 1px solid var(--line-faint);
  border-radius: 6px;
  padding: 8px 12px;
}
.filter-bar select {
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: 5px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}
.filter-bar .spacer { margin-left: auto; }

/* Pips for module / fiber colors in splice tables */
.mod-pip, .fib-pip {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 5px;
  vertical-align: middle;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.2);
}
.mod-red    { background: #d83a3a; }
.mod-clear  { background: #cfd9e3; }
.fib-blue   { background: #2a6df4; }
.fib-orange { background: #ff7a1a; }
.fib-green  { background: #2bb673; }
.fib-brown  { background: #8b5a2b; }

/* Layout editor */
.layout-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--line-faint);
  border-radius: 6px;
  padding: 10px 14px;
  margin-bottom: 14px;
}
.layout-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.app.layout-edit {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  height: calc(100vh - 240px);
  min-height: 500px;
  border: 1px solid var(--line-faint);
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg-card);
}
.app.layout-edit .canvas-wrap { position: relative; }
.app.layout-edit .sidebar.layout-side {
  border-left: 1px solid var(--line-faint);
  padding: 18px;
  overflow-y: auto;
  background: var(--bg);
}

.pin-reveal {
  background: var(--bg-soft);
  border: 1.5px dashed var(--accent);
  padding: 12px 16px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.pin-reveal-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}
.pin-reveal-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--accent);
  margin: 4px 0 6px;
}

.counts {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.counts li {
  display: flex;
  justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 6px 10px;
  background: var(--bg-soft);
  border-radius: 3px;
}
.counts li span { color: var(--ink-3); text-transform: uppercase; font-size: 10px; letter-spacing: 0.08em; }
.counts li b { font-weight: 700; }