* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f0f2f5;
    color: #1a1a2e;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background: #1a1a2e;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    height: 60px;
}

.nav-brand {
    color: #fff;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-links a {
    color: #a0a0b0;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.nav-links a:hover,
.nav-links a.active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px;
}

/* Cards de resumo */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.card {
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #ddd;
}

.card-online { border-left-color: #22c55e; }
.card-offline { border-left-color: #ef4444; }
.card-instavel { border-left-color: #f59e0b; }
.card-total { border-left-color: #3b82f6; }

.card h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: #888;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.card .number {
    font-size: 2rem;
    font-weight: 700;
}

/* Tabela */
.table-container {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

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

th {
    background: #f8f9fa;
    padding: 12px 16px;
    text-align: left;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: #666;
    letter-spacing: 0.5px;
    border-bottom: 2px solid #e5e7eb;
}

td {
    padding: 12px 16px;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.9rem;
}

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

tr:hover td {
    background: #f9fafb;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-online { background: #dcfce7; color: #166534; }
.badge-offline { background: #fee2e2; color: #991b1b; }
.badge-instavel { background: #fef3c7; color: #92400e; }
.badge-unknown { background: #f3f4f6; color: #6b7280; }

/* Botões */
.btn {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary { background: #3b82f6; color: #fff; }
.btn-primary:hover { background: #2563eb; }

.btn-danger { background: #ef4444; color: #fff; }
.btn-danger:hover { background: #dc2626; }

.btn-secondary { background: #e5e7eb; color: #374151; }
.btn-secondary:hover { background: #d1d5db; }

.btn-sm { padding: 4px 12px; font-size: 0.8rem; }

/* Formulário */
.form-container {
    background: #fff;
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    max-width: 600px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: #374151;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group small {
    color: #6b7280;
    font-size: 0.8rem;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

/* Detalhes do site */
.site-header {
    background: #fff;
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.site-header h2 {
    margin-bottom: 12px;
}

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

.info-item label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: #888;
    margin-bottom: 4px;
}

.info-item span {
    font-size: 1.1rem;
    font-weight: 600;
}

/* Uptime */
.uptime-box {
    display: flex;
    gap: 24px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.uptime-item {
    text-align: center;
}

.uptime-item .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: #888;
}

.uptime-item .value {
    font-size: 1.5rem;
    font-weight: 700;
}

.uptime-ok { color: #22c55e; }
.uptime-warn { color: #f59e0b; }
.uptime-bad { color: #ef4444; }

/* Alertas */
.alert {
    padding: 12px 20px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    color: #888;
    font-size: 0.85rem;
}

/* Responsivo */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 12px;
    }
    .nav-links {
        margin-top: 8px;
    }
    .cards {
        grid-template-columns: 1fr;
    }
    .hide-mobile {
        display: none;
    }
}