:root {
  --bg: #0a0e17;
  --bg-2: #0d1220;
  --panel: rgba(255, 255, 255, 0.045);
  --panel-border: rgba(255, 255, 255, 0.09);
  --text: #e8ecf4;
  --text-dim: #9aa4b8;
  --text-mute: #6b7590;
  --accent: #6ee7ff;
  --accent-2: #a78bfa;
  --accent-3: #34d399;
  --danger: #f87171;
  --radius: 14px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
}

.bg-aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(110, 231, 255, 0.16), transparent 60%),
    radial-gradient(1000px 700px at 90% 0%, rgba(167, 139, 250, 0.14), transparent 55%),
    radial-gradient(800px 500px at 50% 110%, rgba(52, 211, 153, 0.10), transparent 60%),
    var(--bg);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); font-size: 0.9em; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  max-width: 1080px;
  margin: 0 auto;
}
.brand { display: flex; align-items: baseline; gap: 2px; font-weight: 800; font-size: 1.35rem; letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand-mark {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand-name { color: var(--text); }
.topnav { display: flex; align-items: center; gap: 20px; }
.topnav a:not(.btn) { color: var(--text-dim); font-size: 0.95rem; }
.topnav a:not(.btn):hover { color: var(--text); text-decoration: none; }

.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, opacity 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #04121a; }
.btn-primary:hover { opacity: 0.92; }
.btn-ghost { background: transparent; border-color: var(--panel-border); color: var(--text); }
.btn-danger { background: transparent; border-color: rgba(248,113,113,0.4); color: var(--danger); }
.btn-lg { padding: 13px 26px; font-size: 1rem; }
.btn-sm { padding: 6px 13px; font-size: 0.82rem; }
.btn-block { width: 100%; text-align: center; }

main { max-width: 1080px; margin: 0 auto; padding: 0 24px 80px; }

.hero { text-align: center; padding: 64px 12px 32px; }
.pill {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: var(--panel); border: 1px solid var(--panel-border);
  font-size: 0.8rem; color: var(--text-dim); margin-bottom: 24px;
}
.hero h1 { font-size: 3rem; line-height: 1.12; letter-spacing: -0.03em; margin: 0 0 20px; }
.grad-text {
  background: linear-gradient(135deg, var(--accent), var(--accent-2) 60%, var(--accent-3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: var(--text-dim); font-size: 1.08rem; max-width: 620px; margin: 0 auto 32px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; margin-bottom: 36px; flex-wrap: wrap; }
.domain-badges { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.badge {
  font-family: var(--mono); font-size: 0.85rem; color: var(--accent);
  background: rgba(110,231,255,0.08); border: 1px solid rgba(110,231,255,0.22);
  padding: 6px 14px; border-radius: 8px;
}

.features {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin: 56px 0;
}
.card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(12px);
}
.feature-icon { font-size: 1.6rem; margin-bottom: 10px; }
.card h3 { margin: 0 0 8px; font-size: 1.02rem; }
.card p { margin: 0; color: var(--text-dim); font-size: 0.92rem; }

.howto { margin: 56px 0; }
.howto h2 { text-align: center; margin-bottom: 28px; }
.steps { max-width: 640px; margin: 0 auto; padding-left: 20px; color: var(--text-dim); }
.steps li { margin-bottom: 10px; }
.steps strong { color: var(--text); }

.auth-wrap { display: flex; justify-content: center; padding: 60px 0; }
.auth-card { width: 100%; max-width: 380px; }
.auth-card h2 { margin-top: 0; }
.auth-switch { margin-top: 16px; color: var(--text-dim); font-size: 0.9rem; text-align: center; }

.form { display: flex; flex-direction: column; gap: 14px; margin-top: 18px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 0.85rem; color: var(--text-dim); }
.form input, .form select {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: var(--sans);
}
.form input:focus, .form select:focus { outline: none; border-color: var(--accent); }
.form-inline { flex-direction: row; align-items: flex-end; flex-wrap: wrap; gap: 12px; }
.form-inline .grow { flex: 1; min-width: 180px; }

.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; font-size: 0.9rem; }
.alert-error { background: rgba(248,113,113,0.1); border: 1px solid rgba(248,113,113,0.3); color: #fca5a5; }
.alert-info { background: rgba(110,231,255,0.08); border: 1px solid rgba(110,231,255,0.25); color: #a7e9f7; }

.dash { padding-top: 40px; }
.dash-head { margin-bottom: 24px; }
.dash-head h1 { margin: 0 0 4px; }
.muted { color: var(--text-dim); }
.muted.small { font-size: 0.85rem; }

.admin-head { margin-bottom: 24px; }
.admin-head h1 { margin: 0 0 16px; }
.admin-subnav { display: flex; gap: 6px; border-bottom: 1px solid var(--panel-border); }
.admin-subnav a {
  padding: 10px 16px; color: var(--text-dim); font-size: 0.92rem; font-weight: 600;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.admin-subnav a:hover { color: var(--text); text-decoration: none; }
.admin-subnav a.active { color: var(--accent); border-bottom-color: var(--accent); }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 20px; }
.stat-tile { display: flex; flex-direction: column; gap: 4px; padding: 20px; }
.stat-value { font-size: 2rem; font-weight: 800; letter-spacing: -0.02em; }
.stat-label { font-size: 0.82rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; }

.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.data-table th {
  text-align: left; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--text-mute); padding: 8px 12px; border-bottom: 1px solid var(--panel-border);
  white-space: nowrap;
}
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--panel-border); vertical-align: middle; }
.data-table tbody tr:hover { background: rgba(255,255,255,0.03); }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table a { text-decoration: none; }
.data-table a:hover { text-decoration: underline; }

@media (max-width: 760px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

.reveal-card { border-color: rgba(52,211,153,0.35); background: rgba(52,211,153,0.06); margin-bottom: 20px; }
.reveal-card h3 { margin-top: 0; }
.kv { display: flex; flex-direction: column; gap: 10px; margin: 14px 0; }
.kv > div { display: flex; flex-direction: column; gap: 4px; }
.kv span { font-size: 0.78rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.04em; }
.pw-reveal { display: flex; align-items: center; gap: 8px; }
.pw-reveal .pw-value { flex: 1; }
.pw-toggle { padding: 6px 10px; line-height: 1; }

.copyline {
  display: block; background: rgba(0,0,0,0.3); border: 1px solid var(--panel-border);
  border-radius: 8px; padding: 10px 12px; word-break: break-all; font-size: 0.88rem;
}

.host-list { display: flex; flex-direction: column; gap: 14px; margin-top: 20px; }
.host-card { display: flex; flex-direction: column; gap: 14px; }
.host-card-head { display: flex; align-items: center; gap: 10px; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--text-mute); flex-shrink: 0; }
.status-dot.ok { background: var(--accent-3); box-shadow: 0 0 8px rgba(52,211,153,0.7); }
.host-fqdn { font-family: var(--mono); font-size: 1.02rem; }
.host-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.host-meta > div { font-size: 0.88rem; }
.host-meta span { display: block; font-size: 0.72rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 2px; }
.host-actions { display: flex; gap: 10px; }
.empty-state { text-align: center; color: var(--text-dim); }

.help h1 { margin-bottom: 6px; }
.help .card { margin-bottom: 18px; }
.codeblock {
  background: rgba(0,0,0,0.35); border: 1px solid var(--panel-border); border-radius: 10px;
  padding: 14px; font-family: var(--mono); font-size: 0.85rem; overflow-x: auto; white-space: pre;
}

.ip-widget { max-width: 520px; }
.ip-widget-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.ip-widget-head h3 { margin: 0; }
.ip-rows { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.ip-row {
  display: grid; grid-template-columns: 52px 1fr auto; gap: 4px 10px; align-items: baseline;
  background: rgba(255,255,255,0.03); border: 1px solid var(--panel-border); border-radius: 8px; padding: 10px 12px;
}
.ip-proto { font-size: 0.75rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.04em; align-self: center; }
.ip-value { font-size: 0.98rem; grid-column: 2; }
.ip-host { font-size: 0.78rem; color: var(--text-dim); grid-column: 2; }
.ip-ping { font-size: 0.78rem; color: var(--accent-3); grid-row: 1; grid-column: 3; align-self: center; }

.footer { text-align: center; color: var(--text-mute); font-size: 0.82rem; padding: 40px 0 20px; }

@media (max-width: 760px) {
  .features { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 2.2rem; }
  .host-meta { grid-template-columns: repeat(2, 1fr); }
  .topbar { flex-direction: column; gap: 12px; padding: 16px; }
}
@media (max-width: 480px) {
  .features { grid-template-columns: 1fr; }
}