/* --- Configurações Globais e Variáveis --- */
:root {
    --primary-color: #007bff; /* Azul primário */
    --secondary-color: #6c757d; /* Cinza secundário */
    --background-color: #f8f9fa; /* Fundo levemente acinzentado */
    --surface-color: #ffffff; /* Cor de superfície (cards) */
    --text-color: #343a40; /* Cor do texto principal */
    --heading-color: #212529; /* Cor dos títulos */
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition-speed: 0.3s;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

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

/* --- Cabeçalho --- */
header {
    background-color: var(--surface-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

header nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 25px;
}

header nav a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 600;
    transition: color var(--transition-speed);
}

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

/* --- Seção Principal (Hero) --- */
.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(to bottom, #e9f2ff, var(--background-color));
}

.hero h2 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: var(--secondary-color);
    max-width: 600px;
    margin: 0 auto 2rem auto;
}

.search-bar {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.search-bar input {
    flex-grow: 1;
    border: none;
    padding: 15px 20px;
    font-size: 1rem;
    outline: none;
}

.search-bar button {
    border: none;
    background-color: var(--primary-color);
    color: white;
    padding: 0 20px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background-color var(--transition-speed);
}

.search-bar button:hover {
    background-color: #0056b3;
}

/* --- Seção de Calculadoras --- */
.calculators-section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 40px;
    color: var(--heading-color);
}

.calculators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.calculator-card {
    background-color: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    text-align: center;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    display: flex;
    flex-direction: column;
}

.calculator-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.card-icon {
    margin: 0 auto 20px auto;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
}

/* Cores dos Ícones por Categoria */
.card-icon.financas { background-color: #28a745; } /* Verde */
.card-icon.saude { background-color: #dc3545; } /* Vermelho */
.card-icon.dia-a-dia { background-color: #ffc107; } /* Amarelo */
.card-icon.trabalho { background-color: #17a2b8; } /* Ciano */


.calculator-card h4 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--heading-color);
    flex-grow: 1;
}

.calculator-card p {
    color: var(--secondary-color);
    margin-bottom: 20px;
    flex-grow: 2;
}

.btn-primary {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 12px 25px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: background-color var(--transition-speed);
}

.btn-primary:hover {
    background-color: #0056b3;
}

.no-results-message {
    text-align: center;
    padding: 40px;
    font-size: 1.2rem;
    color: var(--secondary-color);
}

/* --- Rodapé --- */
footer {
    background-color: #e9ecef;
    color: var(--secondary-color);
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
}

/* --- Responsividade --- */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 2.2rem;
    }

    header .container {
        flex-direction: column;
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .hero h2 {
        font-size: 1.8rem;
    }
    .hero p {
        font-size: 1rem;
    }
}