/* Tunnl dashboard — vendored, CDN-free stylesheet (no build step).
 *
 * A compact utility + component set with Tailwind-flavored class names so the markup
 * reads like Tailwind and a compiled Tailwind build could be dropped in later. Everything
 * here is same-origin and CSP-clean (no @import, no external fonts, no inline styles). */

:root {
  --bg: #0b0f17;
  --bg-elev: #121826;
  --bg-elev-2: #1a2234;
  --border: #26304a;
  --text: #e6eaf2;
  --muted: #93a0ba;
  --accent: #6366f1;
  --accent-hover: #4f52e0;
  --danger: #f87171;
  --danger-bg: #2a1520;
  --success: #34d399;
  --warning: #fbbf24;
  --radius: 10px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- layout --- */
.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }
.container-narrow { max-width: 420px; margin: 0 auto; padding: 0 20px; }
.stack > * + * { margin-top: 16px; }
.row { display: flex; align-items: center; }
.between { justify-content: space-between; }
.center { justify-content: center; }
.wrap { flex-wrap: wrap; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grow { flex: 1; }
.w-full { width: 100%; }
.hidden { display: none !important; }

/* --- type --- */
.h1 { font-size: 26px; font-weight: 700; letter-spacing: -0.01em; margin: 0; }
.h2 { font-size: 17px; font-weight: 600; margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono { font-family: var(--mono); font-size: 13px; }
.danger { color: var(--danger); }
.success { color: var(--success); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* --- top bar --- */
.topbar {
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  padding: 14px 0;
  margin-bottom: 28px;
}
.brand { font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.brand span { color: var(--accent); }

/* --- cards --- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card + .card { margin-top: 20px; }
.card-head { margin-bottom: 16px; }

/* --- buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font: inherit;
  font-weight: 600;
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--text);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, opacity 0.12s;
}
.btn:hover { background: #222c42; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { color: var(--danger); border-color: transparent; background: transparent; }
.btn-danger:hover { background: var(--danger-bg); }
.btn-sm { padding: 5px 10px; font-size: 13px; }

/* --- forms --- */
.field { display: block; }
.label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.input, .select {
  width: 100%;
  font: inherit;
  font-size: 14px;
  padding: 9px 11px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
}
.input:focus, .select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}
.input::placeholder { color: #55617c; }

/* --- tables --- */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 600;
  padding: 0 12px 8px;
  border-bottom: 1px solid var(--border);
}
.table td { padding: 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table-actions { text-align: right; white-space: nowrap; }

/* --- badges --- */
.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.badge-accent { color: #c7d2fe; border-color: #3730a3; background: #1e1b4b; }
.badge-success { color: var(--success); border-color: #065f46; background: #052e26; }
.badge-warning { color: var(--warning); border-color: #78350f; background: #2a1c05; }

/* --- tabs --- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 14px;
  margin-bottom: -1px;
  cursor: pointer;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

/* --- usage meters --- */
.meter { height: 8px; border-radius: 999px; background: var(--bg-elev-2); overflow: hidden; }
.meter-fill { height: 100%; background: var(--accent); border-radius: 999px; }
.meter-fill.warn { background: var(--warning); }
.meter-fill.over { background: var(--danger); }
.stat-label { font-size: 13px; color: var(--muted); }
.stat-value { font-size: 15px; font-weight: 600; }

/* --- alerts / notices --- */
.alert { border-radius: 8px; padding: 10px 13px; font-size: 14px; }
.alert-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid #7f1d1d; }
.alert-info { background: var(--bg-elev-2); color: var(--muted); border: 1px solid var(--border); }
.empty { text-align: center; color: var(--muted); padding: 28px 0; font-size: 14px; }

/* --- secret reveal box --- */
.secret {
  background: var(--bg);
  border: 1px dashed var(--accent);
  border-radius: 8px;
  padding: 12px;
  font-family: var(--mono);
  font-size: 13px;
  word-break: break-all;
}

/* --- dns instruction rows --- */
.dns { font-family: var(--mono); font-size: 12.5px; }
.dns td { padding: 8px 12px; }

@media (max-width: 640px) {
  .grid-3 { grid-template-columns: 1fr; }
  .hide-sm { display: none; }
}