:root {
  --bg: #0b0b17;
  --glow-1: rgba(99, 102, 241, 0.2);
  --glow-2: rgba(168, 85, 247, 0.14);
  --surface: rgba(22, 22, 40, 0.72);
  --surface-2: rgba(32, 32, 56, 0.8);
  --surface-hover: rgba(44, 44, 74, 0.9);
  --input-bg: rgba(8, 8, 20, 0.6);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #eceaf6;
  --muted: #9a98b4;
  --accent: #8b5cf6;
  --accent-text: #c4b5fd;
  --accent-link: #a5b4fc;
  --accent-soft: rgba(124, 108, 246, 0.16);
  --accent-ring: rgba(124, 108, 246, 0.5);
  --accent-grad: linear-gradient(135deg, #6366f1 0%, #8b5cf6 55%, #a855f7 100%);
  --danger-grad: linear-gradient(135deg, #ef4444 0%, #db2777 100%);
  --success: #34d399;
  --success-soft: rgba(52, 211, 153, 0.14);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.12);
  --warning-ring: rgba(251, 191, 36, 0.55);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.12);
  --info: #93c5fd;
  --info-soft: rgba(96, 165, 250, 0.12);
  --radius-lg: 20px;
  --radius: 14px;
  --font: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
  color-scheme: dark;
  --sidebar-grad-from: rgba(55, 48, 163, 0.45);
  --sidebar-grad-to: rgba(22, 22, 40, 0.75);
  --brand-logo-glow: rgba(124, 108, 246, 0.45);
  --btn-primary-glow: rgba(124, 108, 246, 0.35);
  --danger-border: rgba(248, 113, 113, 0.45);
  --info-border: rgba(96, 165, 250, 0.45);
  --progress-bg: rgba(255, 255, 255, 0.06);
  --th-bg: rgba(255, 255, 255, 0.03);
  --row-hover-bg: rgba(255, 255, 255, 0.02);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  background:
    radial-gradient(900px 600px at 0% 0%, var(--glow-1), transparent 60%),
    radial-gradient(800px 600px at 100% 100%, var(--glow-2), transparent 60%),
    var(--bg);
  background-attachment: fixed;
}

.layout {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  gap: 20px;
  padding: 20px;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: 20px;
  align-self: start;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 14px;
  background: linear-gradient(180deg, var(--sidebar-grad-from) 0%, var(--sidebar-grad-to) 60%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
}
.brand { display: flex; align-items: center; gap: 12px; padding: 4px 8px 16px; }
.brand-logo { width: 46px; height: 46px; border-radius: 50%; box-shadow: 0 6px 22px var(--brand-logo-glow); }
.brand-name { font-size: 19px; font-weight: 800; letter-spacing: 0.04em; }
.brand-name .accent {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-sub { font-size: 12.5px; color: var(--muted); }
.nav-label {
  margin: 16px 12px 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}
.nav-item svg { width: 18px; height: 18px; flex: none; }
.nav-item.active {
  background: var(--accent-soft);
  border-color: var(--accent-ring);
  box-shadow: 0 4px 18px var(--glow-1);
}
.legend { display: grid; gap: 12px; margin: 0; padding: 0 12px; }
.legend dt { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; }
.legend dd { margin: 2px 0 0; font-size: 12.5px; color: var(--muted); }

/* Main column */
.main { min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.card {
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
}
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.crumb { font-size: 12.5px; color: var(--muted); }
h1 { margin: 2px 0 0; font-size: 22px; font-weight: 800; letter-spacing: -0.01em; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 10px var(--success); }
.lead { margin: 0; font-size: 15px; color: var(--muted); }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); font-size: 12.5px; }

/* Input */
.label { display: block; margin-bottom: 10px; font-weight: 700; }
textarea {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  padding: 12px 14px;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  font: 13px/1.6 var(--mono);
}
textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
textarea:disabled { opacity: 0.6; }
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}
.actions { display: flex; flex-wrap: wrap; gap: 10px; }
#count.over { color: var(--danger); font-weight: 600; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background-color 0.15s;
}
.btn:hover:not(:disabled) { background: var(--surface-hover); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent-grad); border-color: transparent; box-shadow: 0 8px 24px var(--btn-primary-glow); }
.btn-primary:hover:not(:disabled) {
  background: var(--accent-grad);
  transform: translateY(-1px);
  box-shadow: 0 10px 28px var(--accent-ring);
}
.btn-danger,
.btn-danger:hover:not(:disabled) { background: var(--danger-grad); border-color: transparent; }

/* Banner */
.banner { padding: 12px 16px; border: 1px solid; border-radius: var(--radius); font-weight: 600; }
.banner-error { background: var(--danger-soft); border-color: var(--danger-border); color: var(--danger); }
.banner-info { background: var(--info-soft); border-color: var(--info-border); color: var(--info); }

/* Stat cards */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  min-width: 0;
  padding: 18px 20px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.stat:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.stat.active { border-color: var(--accent-ring); box-shadow: 0 0 0 3px var(--accent-soft); }
.stat.alert { border-color: var(--warning-ring); }
.stat.static { cursor: default; }
.stat.static:hover { border-color: var(--border); transform: none; }
.stat-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  background: var(--accent-soft);
  color: var(--accent-text);
  border: 1px solid var(--accent-ring);
  border-radius: 12px;
}
.stat-icon svg { width: 20px; height: 20px; }
.stat.alert .stat-icon { background: var(--warning-soft); color: var(--warning); border-color: var(--warning-ring); }
.stat-value { font-size: 30px; font-weight: 800; line-height: 1.15; }
.stat-value.small {
  max-width: 100%;
  overflow: hidden;
  font-size: 17px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.stat-label { margin-top: 4px; font-weight: 700; }
.stat-sub { font-size: 12.5px; color: var(--muted); }

/* Results */
#results { backdrop-filter: none; }
.results-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.results-head h2 { margin: 0; font-size: 17px; font-weight: 800; }
.results-head h2 span { font-weight: 600; color: var(--muted); }
.progress { height: 6px; margin-top: 16px; background: var(--progress-bg); border-radius: 999px; overflow: hidden; }
.progress-bar { width: 0; height: 100%; background: var(--accent-grad); transition: width 0.2s; }
#progress-text { display: block; margin-top: 8px; font-size: 12.5px; color: var(--muted); }

.table-wrap { margin-top: 16px; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; min-width: 900px; border-collapse: collapse; }
th, td { padding: 10px 14px; text-align: left; vertical-align: top; }
th {
  background: var(--th-bg);
  border-bottom: 1px solid var(--border);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
th.center, td.check { text-align: center; }
tbody.group + tbody.group tr:first-child td { border-top: 1px solid var(--border); }
tbody.group:hover td { background: var(--row-hover-bg); }
td.domain { min-width: 170px; font-weight: 700; word-break: break-all; }
.domain-error { margin-top: 4px; font-size: 12px; font-weight: 500; color: var(--danger); }
td.note-error { color: var(--danger); }
.owner { display: flex; align-items: center; gap: 8px; }
.cc {
  padding: 3px 5px;
  background: var(--border);
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  font: 700 10.5px/1 var(--mono);
  color: var(--muted);
}
a.ext { font-size: 12.5px; color: var(--accent-link); text-decoration: none; }
a.ext:hover { text-decoration: underline; }
td.links { white-space: nowrap; }
td.links a + a { margin-left: 12px; }
.tick {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 800;
}
.tick.yes { background: var(--success-soft); color: var(--success); }
.tick.no { color: var(--muted); }

/* Responsive */
@media (max-width: 1100px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .layout { grid-template-columns: minmax(0, 1fr); padding: 16px; }
  .sidebar { position: static; max-height: none; }
}
@media (max-width: 520px) {
  .stats { grid-template-columns: minmax(0, 1fr); }
  .topbar { flex-direction: column; align-items: flex-start; }
  .card { padding: 16px; }
}