* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  background: #0b1220;
  color: #e5e7eb;
}

a { color: inherit; text-decoration: none; }
a:hover { opacity: 0.9; }

:root{
  --bg: #0b1220;
  --panel: rgba(255,255,255,0.06);
  --panel2: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.12);
  --text: #e5e7eb;
  --muted: rgba(229,231,235,0.65);
  --primary: #3b82f6;
  --danger: #ef4444;
  --radius: 14px;
}

/* ========== COMPONENTES ========== */
.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}

.input {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.25);
  color: var(--text);
  outline: none;
}
.input:focus {
  border-color: rgba(59,130,246,0.6);
  box-shadow: 0 0 0 4px rgba(59,130,246,0.18);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(59,130,246,0.45);
  background: rgba(59,130,246,0.18);
  color: #eaf2ff;
  cursor: pointer;
  font-weight: 600;
}
.btn:hover { background: rgba(59,130,246,0.25); }

.badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--muted);
}

.alert {
  border: 1px solid rgba(239,68,68,0.4);
  background: rgba(239,68,68,0.12);
  padding: 10px 12px;
  border-radius: 12px;
  color: #ffd1d1;
}

/* ========== LOGIN ========== */
.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 26px;
}

.login-card {
  width: min(440px, 92vw);
  padding: 22px;
}

.login-brand {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, rgba(59,130,246,0.3), rgba(255,255,255,0.06));
}

.login-title {
  font-size: 18px;
  font-weight: 800;
  margin: 0;
}
.login-sub {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.form-grid { display: grid; gap: 12px; margin-top: 12px; }
.form-row { display: grid; gap: 8px; }
.label { color: var(--muted); font-size: 13px; }

/* ========== APP LAYOUT (ADENTRO) ========== */
.app {
  height: 100vh;
  display: grid;
  grid-template-rows: 64px 1fr;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(11,18,32,0.75);
  backdrop-filter: blur(10px);
}

.topbar-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.top-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.top-title {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.top-title strong { font-size: 14px; }
.top-title span { font-size: 12px; color: var(--muted); }

.main {
  display: grid;
  grid-template-columns: 270px 1fr;
  gap: 14px;
  padding: 14px;
}

.sidebar {
  height: calc(100vh - 64px - 28px);
  position: sticky;
  top: 78px;
  padding: 14px;
}

.side-title {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav {
  display: grid;
  gap: 8px;
}

.nav a {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav a:hover {
  background: var(--panel2);
  border-color: var(--border);
}

.content {
  padding: 14px;
  min-height: calc(100vh - 64px - 28px);
}

.page-title {
  margin: 0 0 10px;
  font-size: 18px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid var(--border);
}
.table th, .table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.table th { text-align: left; color: var(--muted); font-weight: 700; font-size: 12px; }
.table tr:hover td { background: rgba(255,255,255,0.04); }

/* ========== RESPONSIVE ========== */
@media (max-width: 900px) {
  .main { grid-template-columns: 1fr; }
  .sidebar { position: relative; top: 0; height: auto; }
}