:root {
    --primary-blue: #0061f2;
    --bg-light: #f8fafc;
    --panel-gray: #f1f5f9;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --white: #ffffff;
}

/* CORREÇÃO CRITICAL: Impede que padding e bordas "estourem" o tamanho dos elementos */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-light);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    /* Ajuste de padding: 40px no topo/base, 15px nas laterais para não encostar no vidro do celular */
    padding: 40px 15px; 
    overflow-x: hidden;
}

.marca-topo {
    width: 100%; /* Mudado de 95% para 100% para controle total via max-width */
    max-width: 1100px;
    margin-bottom: 30px;
}

.marca-topo h1 {
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--text-dark);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.header-interno h2 {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 5px;
    color: var(--text-dark);
}

main {
    display: grid;
    /* No desktop mantém seus 400px, no mobile o 1fr da media query assume */
    grid-template-columns: 400px 1fr; 
    gap: 30px;
    width: 100%;
    max-width: 1100px;
}

@media (max-width: 900px) {
    main {
        grid-template-columns: 1fr; 
        margin: 20px 0;
    }

    #resultado {
        padding: 40px 20px !important; /* Força o respiro menor no mobile */
    }

    #get-valor {
        font-size: 4.5rem !important; /* Reduz um pouco mais para não vazar */
    }
    
    .marca-topo {
        text-align: center;
    }
}

/* PAINEL DA ESQUERDA (FORMULÁRIO) */
#formulario-saude {
    background-color: var(--panel-gray);
    padding: 40px;
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%; /* Garante que ocupe a coluna do grid */
}

@media (max-width: 500px) {
    #formulario-saude {
        padding: 25px; /* Reduz padding interno para ganhar espaço no teclado do celular */
    }

    .grid-duplo {
        grid-template-columns: 1fr;
    }

    .header-interno h1 {
        font-size: 1.4rem;
    }
    
    #get-valor {
        font-size: 3.5rem !important;
    }
}

.input-wrapper {
    background-color: #e2e8f0;
    border-radius: 12px;
    display: flex;
    align-items: center;
    padding: 0 15px;
}

.input-wrapper input {
    background: transparent;
    border: none;
    padding: 15px 0;
    width: 100%;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
}

.unit {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
}

/* PAINEL DA DIREITA (RESULTADO) */
#resultado {
    background-color: var(--white);
    border-radius: 40px;
    padding: 60px;
    box-shadow: 0 40px 100px rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
}

#get-valor {
    color: var(--primary-blue);
    font-size: 8rem;
    font-weight: 900;
    letter-spacing: -4px;
    line-height: 1;
}

.label-resultado {
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 700;
    font-size: 0.7rem;
    margin-bottom: 10px;
}

button {
    background-color: var(--primary-blue);
    color: white;
    border: none;
    padding: 22px;
    border-radius: 16px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    box-shadow: 0 10px 20px rgba(0, 97, 242, 0.2);
    transition: all 0.3s ease;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(0, 97, 242, 0.3);
}

button:active {
    transform: translateY(2px);
    box-shadow: 0 5px 10px rgba(0, 97, 242, 0.2);
}

.header-interno h1 {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-dark);
    letter-spacing: -1px;
}

.header-interno p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.grid-duplo {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.gender-selector {
    display: flex;
    background-color: #e2e8f0;
    padding: 5px;
    border-radius: 12px;
}

.btn-gender {
    flex: 1;
    padding: 10px;
    border-radius: 10px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-weight: 700;
    cursor: pointer;
    box-shadow: none;
    text-transform: none;
    transition: all 0.2s ease;
}

.btn-gender:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

/* Estilo para quando o JS adicionar a classe 'active' */
.btn-gender.active {
    background-color: var(--white) !important;
    color: var(--primary-blue) !important;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05) !important;
    transform: scale(1.02);
}

.select-wrapper select {
    width: 100%;
    background-color: #e2e8f0;
    border: none;
    padding: 15px;
    border-radius: 12px;
    font-weight: 700;
    color: var(--text-dark);
    appearance: none;
}

footer {
    color: black;
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    margin-top: 20px;
    text-align: center;
}

.footer-nome {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    letter-spacing: 0.04em;
}