:root {
  --bg: #0c0e14;
  --panel: #141823;
  --panel-2: #1b2030;
  --border: #242b3d;
  --text: #e6e9f0;
  --muted: #8a92a6;
  --accent: #6c8cff;
  --ok: #3ddc84;
  --off: #f2545b;
  --warn: #f5b945;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, #161b2e 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: rgba(12, 14, 20, 0.7);
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo { font-size: 30px; }
.brand h1 { margin: 0; font-size: 20px; letter-spacing: 0.3px; }
.subtitle { margin: 2px 0 0; font-size: 12px; color: var(--muted); }
.tailnet { text-align: right; font-size: 13px; line-height: 1.5; }
.tailnet b { color: var(--accent); }
.topbar-right { display: flex; align-items: center; gap: 16px; }

/* Tabs */
.tabs {
  display: flex; gap: 4px; max-width: 1100px; margin: 0 auto;
  padding: 16px 22px 0; flex-wrap: wrap;
}
.tab {
  background: transparent; border: 1px solid transparent; border-bottom: none;
  border-radius: 10px 10px 0 0; color: var(--muted); padding: 9px 16px; font-size: 13px;
}
.tab:hover { background: var(--panel); color: var(--text); }
.tab.active { background: var(--panel); color: var(--text); border-color: var(--border); }

.tabpane { display: none; }
.tabpane.active { display: block; }

main { max-width: 1100px; margin: 0 auto; padding: 18px 22px 80px; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 26px; }
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-num { font-size: 28px; font-weight: 700; }
.stat-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.6px; }
.stat.ok .stat-num { color: var(--ok); }
.stat.off .stat-num { color: var(--off); }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 22px;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.panel-head h2 { margin: 0; font-size: 15px; font-weight: 600; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }

.card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: #33405e; transform: translateY(-2px); }
.card.offline { opacity: 0.62; }

.card-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.card-host { display: flex; align-items: center; gap: 9px; min-width: 0; }
.os { font-size: 18px; }
.host-name { font-weight: 600; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.dot.on { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.dot.off { background: var(--off); }

.badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge {
  font-size: 10.5px; padding: 2px 8px; border-radius: 999px;
  background: #222a3d; color: var(--muted); border: 1px solid var(--border);
  text-transform: uppercase; letter-spacing: 0.4px;
}
.badge-self { background: rgba(108, 140, 255, 0.16); color: var(--accent); border-color: transparent; }
.badge-soon { background: rgba(245, 185, 69, 0.16); color: var(--warn); border-color: transparent; }

.meta { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: 12.5px; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; font-variant-numeric: tabular-nums; }
.ip { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.traffic { display: flex; gap: 16px; font-size: 12px; }
.traffic span b { color: var(--text); font-variant-numeric: tabular-nums; }
.rx b { color: var(--ok); }
.tx b { color: var(--accent); }

.card-actions { display: flex; gap: 8px; }
button {
  font: inherit; cursor: pointer; border-radius: 9px; border: 1px solid var(--border);
  background: var(--panel); color: var(--text); padding: 8px 12px; font-size: 13px;
  transition: background 0.15s, border-color 0.15s;
}
button:hover { background: #20283a; border-color: #33405e; }
button.primary { background: var(--accent); border-color: transparent; color: #0c0e14; font-weight: 600; }
button.primary:hover { background: #5a7cff; }
button:disabled { opacity: 0.45; cursor: not-allowed; }

.deploy { display: flex; gap: 10px; flex-wrap: wrap; }
.deploy input { flex: 1 1 280px; }
input, select {
  font: inherit; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 9px; padding: 9px 12px; font-size: 13px;
}
.deploy button { background: var(--accent); border-color: transparent; color: #0c0e14; font-weight: 600; }
.deploy-note { margin: 12px 0 0; font-size: 12px; }
.muted { color: var(--muted); }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 11px 18px; border-radius: 10px; font-size: 13px; opacity: 0;
  transition: opacity 0.2s, transform 0.2s; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Formularios genericos (proyectos / keys) */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.form-grid input, .form-grid select { width: 100%; }
.form-grid button { grid-column: 1 / -1; justify-self: start; }

/* Enlaces dentro de tarjetas */
.link {
  color: var(--accent); text-decoration: none; word-break: break-all;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px;
}
.link:hover { text-decoration: underline; }
.meta dd { overflow-wrap: anywhere; }
.secret-hint { letter-spacing: 1px; color: var(--muted); }

/* Login overlay */
.login-overlay {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  background: rgba(8, 10, 16, 0.86); backdrop-filter: blur(6px);
}
/* El atributo `hidden` debe ocultar el overlay pese al display:flex de arriba. */
.login-overlay[hidden] { display: none; }

/* Proyectos agrupados por servidor */
.proj-group { margin-bottom: 22px; }
.proj-group:last-child { margin-bottom: 0; }
.proj-group-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.3px;
  margin: 0 0 12px; padding-bottom: 7px; border-bottom: 1px solid var(--border);
}
.proj-group-title .muted { font-weight: 400; }
.proj-group-title .dot {
  width: 9px; height: 9px; border-radius: 50%; flex: none;
  background: var(--off); box-shadow: 0 0 0 3px rgba(242, 84, 91, 0.15);
}
.proj-group-title .dot.on {
  background: var(--ok); box-shadow: 0 0 0 3px rgba(61, 220, 132, 0.15);
}
/* Celda "Servidor" dentro de cada tarjeta de proyecto */
.server-cell { display: inline-flex; align-items: center; gap: 7px; font-weight: 600; }
.server-cell .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; background: var(--off); }
.server-cell .dot.on { background: var(--ok); }
.login-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 28px; width: 320px; display: flex; flex-direction: column; gap: 12px;
  align-items: stretch; text-align: center;
}
.login-card .logo { font-size: 40px; }
.login-card h2 { margin: 0; }
.login-card input { width: 100%; }
.login-error { color: var(--off); min-height: 16px; margin: 0; font-size: 12px; }

@media (max-width: 640px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
}