body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f7f6;
    margin: 0;
    padding: 0;
    color: #333;
}

.header {
    background-color: #0f2b3c;
    color: #ffffff;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-title {
    font-size: 26px;
    font-weight: bold;
    letter-spacing: 1px;
}

.header-subtitle {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 15px;
}

nav {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 10px;
}

nav a {
    color: #ffffff;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.1);
    font-weight: 500;
    transition: background 0.3s;
}

nav a:hover {
    background-color: rgba(255, 255, 255, 0.25);
}

nav a.active {
    background-color: #1b7a82;
    color: #ffffff;
    font-weight: bold;
}

.container {
    max-width: 1100px;
    margin: 30px auto;
    padding: 0 20px;
}

.card {
    background: #ffffff;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.card-title {
    font-size: 18px;
    font-weight: bold;
    color: #0f2b3c;
    margin-bottom: 20px;
    border-bottom: 2px solid #eef2f5;
    padding-bottom: 10px;
}

/* Cartões de Métricas (Dashboard) */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.metric-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.metric-card h3 {
    font-size: 32px;
    margin: 0;
    color: #1b7a82;
}

.metric-card p {
    margin: 5px 0 0;
    font-size: 13px;
    font-weight: bold;
    color: #64748b;
    text-transform: uppercase;
}

/* Formulários e Inputs */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}

.form-group label {
    font-size: 13px;
    font-weight: bold;
    margin-bottom: 5px;
    color: #444;
}

.form-group input, .form-group select, .form-group textarea {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 14px;
    width: 100%;
    box-sizing: border-box;
}

/* Organização de Checkboxes (Serviços e Equipamentos) */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 10px;
    background: #f8fafc;
    padding: 15px;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
    margin-top: 8px;
    margin-bottom: 20px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #334155;
    cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #1b7a82;
    cursor: pointer;
}

/* Botões e Tabelas */
.btn-primary {
    background-color: #1b7a82;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    font-size: 15px;
    width: 100%;
    margin-top: 15px;
}

.btn-primary:hover {
    background-color: #145b61;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

th {
    background-color: #0f2b3c;
    color: white;
}