:root {
    /* Cores Modernas */
    --primary-color: #2563eb; /* Azul Royal */
    --primary-dark: #1e40af;
    --secondary-color: #3b82f6;
    
    --bg-color: #f8fafc; /* Fundo levemente azulado/cinza */
    --surface-color: #ffffff;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    
    --border-color: #e2e8f0;
    
    /* Cores de Status (Suaves) */
    --success-bg: #dcfce7;
    --success-text: #166534;
    
    --danger-bg: #fee2e2;
    --danger-text: #991b1b;
    
    --warning-bg: #fef3c7;
    --warning-text: #92400e;

    --info-bg: #e0f2fe;
    --info-text: #075985;
    
    /* Sombras Modernas */
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 15px; /* Fonte levemente menor para dashboards */
}

.container {
    width: 95%; /* Mais largo para caber tabelas */
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* --- HEADER / NAVBAR REFORMULADA --- */
nav {
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    height: 45px;
    width: auto;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-text h1 {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0;
}

.brand-text p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s;
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary-color);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -22px; /* Ajuste conforme altura do nav */
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px 3px 0 0;
}

.btn-logout {
    padding: 8px 16px;
    background-color: #fee2e2;
    color: #ef4444 !important;
    border-radius: 6px;
    font-size: 0.85rem !important;
}

.btn-logout:hover {
    background-color: #fecaca;
}

/* --- CARDS DE ESTATÍSTICAS (Modernizados) --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--surface-color);
    padding: 25px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Barra colorida no topo do card em vez de fundo total */
.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 10px 0;
    color: var(--text-primary);
}

.stat-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Cores específicas para as barras e números */
.stat-valid::before { background: var(--success-text); }
.stat-valid h3 { color: var(--success-text); }
.stat-valid { background: linear-gradient(to bottom, #ffffff, #f0fdf4); }

.stat-expired::before { background: var(--danger-text); }
.stat-expired h3 { color: var(--danger-text); }
.stat-expired { background: linear-gradient(to bottom, #ffffff, #fef2f2); }

.stat-disabled::before { background: var(--text-secondary); }
.stat-disabled h3 { color: var(--text-secondary); }
.stat-disabled { background: linear-gradient(to bottom, #ffffff, #f8fafc); }

.stat-pending::before { background: var(--warning-text); } /* Para Pendentes */
.stat-pending h3 { color: var(--warning-text); }
.stat-pending { background: linear-gradient(to bottom, #ffffff, #fffbeb); }


/* --- ÁREA PRINCIPAL E TABELA --- */
.main-card {
    background: var(--surface-color);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden; /* Para bordas redondas na tabela */
}

.card-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #fff;
}

.card-header h2 {
    font-size: 1.25rem;
    color: var(--text-primary);
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

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

th {
    background-color: #f8fafc;
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    padding: 18px 25px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 18px 25px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background-color: #f8fafc;
}

/* --- BADGES (Etiquetas de Status) --- */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    display: inline-block;
    text-transform: uppercase;
}

.badge-ativa {
    background-color: var(--success-bg);
    color: var(--success-text);
}

.badge-inativa {
    background-color: var(--danger-bg);
    color: var(--danger-text);
}

.badge-pendente {
    background-color: var(--warning-bg);
    color: var(--warning-text);
}

/* --- BOTÕES DE AÇÃO NA TABELA --- */
.action-links {
    display: flex;
    gap: 10px;
}

.btn-action {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-edit {
    background-color: var(--info-bg);
    color: var(--info-text);
}
.btn-edit:hover { background-color: #bae6fd; }

.btn-delete {
    background-color: var(--danger-bg);
    color: var(--danger-text);
}
.btn-delete:hover { background-color: #fecaca; }

/* Inputs de Pesquisa (Opcional se tiver) */
.search-input {
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    width: 300px;
    font-size: 0.9rem;
}