/* === Reset e base moderna === */
:root {
  --color-primary: #1976d2;
  --color-primary-dark: #115293;
  --color-bg: #f6f8fb;
  --color-surface: #ffffff;
  --color-border: #e5e9f0;
  --color-text: #1e293b;
  --color-muted: #64748b;
  --radius: 12px;
  --shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
  --transition: 0.2s ease;
}

html, body {
  background-color: var(--color-bg);
  font-family: 'Inter', 'Roboto', sans-serif;
  color: var(--color-text);
}

/* === Navbar === */
.navbar {
  background-color: var(--color-surface) !important;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.navbar-brand {
  font-weight: 600;
  color: var(--color-primary) !important;
}

.nav-link {
  color: var(--color-text) !important;
  font-weight: 500;
  border-radius: var(--radius);
  padding: 0.5rem 1rem;
  transition: background-color var(--transition);
}

.nav-link:hover {
  background-color: rgba(25, 118, 210, 0.1);
}

/* === Botões === */
.btn {
  border-radius: var(--radius);
  font-weight: 600;
  transition: all var(--transition);
  border: none;
}

.btn-primary {
  background-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
}

.btn-outline-primary {
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}

.btn-outline-primary:hover {
  background-color: var(--color-primary);
  color: #fff;
}

/* === Cards === */
.card {
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background-color: var(--color-surface);
}

.card-title {
  font-weight: 600;
  color: var(--color-text);
}

/* === Inputs === */
.form-control {
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  padding: 0.6rem 0.8rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.25rem rgba(25, 118, 210, 0.15);
}

/* === Tabelas === */
.table {
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
  box-shadow: var(--shadow);
}

.table thead {
  background-color: #f1f5f9;
  color: var(--color-muted);
  font-weight: 600;
}

.table td, .table th {
  vertical-align: middle;
}

.table-hover tbody tr:hover {
  background-color: #f8fafc;
}

/* === Alertas === */
.alert {
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* === Links === */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

/* === Formulários === */
label {
  font-weight: 500;
  color: var(--color-muted);
  margin-bottom: 0.25rem;
}

/* === Rodapé e layout === */
footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 1rem;
  color: var(--color-muted);
  text-align: center;
  font-size: 0.9rem;
}

.container, .card, .table {
  margin-bottom: 1.5rem;
}