:root {
  --bg: #f0faf4;
  --surface: #ffffff;
  --sidebar: #075e54;
  --sidebar-hover: #0b7567;
  --primary: #128c7e;
  --primary-light: #25d366;
  --text: #153733;
  --muted: #5f7a74;
  --border: #d4ebe0;
  --danger: #c62828;
  --warning: #e65100;
  --success: #2e7d32;
  --radius: 14px;
  --shadow: 0 12px 30px rgba(7, 94, 84, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

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

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(180deg, var(--sidebar) 0%, #0a4a42 100%);
  color: #fff;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.brand {
  padding: 8px 12px 24px;
  border-bottom: 1px solid rgba(255,255,255,.15);
  margin-bottom: 12px;
}

.brand h1 {
  margin: 0;
  font-size: 1.2rem;
}

.brand p {
  margin: 4px 0 0;
  opacity: .8;
  font-size: .85rem;
}

.nav-link {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.nav-link:hover,
.nav-link.active {
  background: rgba(255,255,255,.14);
  text-decoration: none;
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 16px;
  font-size: .85rem;
  opacity: .85;
}

.main {
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.topbar h2 {
  margin: 0;
  font-size: 1.6rem;
}

.user-badge {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: .9rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.card .label {
  color: var(--muted);
  font-size: .85rem;
}

.card .value {
  font-size: 1.8rem;
  font-weight: 800;
  margin-top: 6px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.panel-body { padding: 20px; }

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 12px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: .92rem;
}

th {
  color: var(--muted);
  font-weight: 700;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .4px;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
}

.badge-ativo { background: #e8f5e9; color: var(--success); }
.badge-bloqueado { background: #ffebee; color: var(--danger); }
.badge-expirado { background: #fff3e0; color: var(--warning); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  border: 0;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  font-size: .9rem;
}

.btn:hover { text-decoration: none; filter: brightness(1.05); }

.btn-primary {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  color: #fff;
}

.btn-outline {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 10px; font-size: .8rem; }

.actions { display: flex; gap: 6px; flex-wrap: wrap; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: .9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: .95rem;
}

.form-group textarea { min-height: 90px; resize: vertical; }

.alert {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-weight: 600;
}

.alert-success { background: #e8f5e9; color: var(--success); }
.alert-error { background: #ffebee; color: var(--danger); }

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background:
    radial-gradient(circle at 14% 18%, rgba(37, 211, 102, 0.16) 0%, transparent 30%),
    linear-gradient(150deg, #e8fff1 0%, #dcf8c6 100%);
}

.login-card {
  width: min(420px, 100%);
  background: rgba(255,255,255,.95);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.login-card h1 {
  margin: 0 0 8px;
  font-size: 1.5rem;
}

.login-card p {
  margin: 0 0 20px;
  color: var(--muted);
}

.search-box input {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  min-width: 220px;
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: sticky; top: 0; z-index: 10; }
}