/* Variáveis CSS */
:root {
    --primary-color: #007bff; /* Azul vibrante */
    --secondary-color: #6c757d; /* Cinza */
    --accent-color: #28a745; /* Verde para sucesso/destaque */
    --light-bg: #f8f9fa; /* Fundo claro */
    --dark-bg: #343a40; /* Fundo escuro */
    --text-color: #333;
    --white-color: #fff;
    --gradient-start: #0056b3; /* Azul mais escuro para gradiente */
    --gradient-end: #007bff;   /* Azul vibrante para gradiente */

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    --border-radius: 8px;
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --transition-speed: 0.3s ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white-color);
    overflow-x: hidden; /* Evita rolagem horizontal indesejada */
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--dark-bg);
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.8rem;
    line-height: 1.2;
    color: var(--white-color);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

h3 {
    font-size: 2.2rem;
    color: var(--primary-color);
}

h4 {
    font-size: 1.6rem;
    color: var(--primary-color);
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color var(--transition-speed);
}

a:hover {
    color: var(--accent-color);
}

ul {
    list-style: none;
}

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

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

.text-white {
    color: var(--white-color);
}

.bg-light {
    background-color: var(--light-bg);
}

.bg-gradient {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white-color);
}

.bg-cta {
    background-color: var(--primary-color);
}

.section-padded {
    padding: 80px 0;
}

/* Botões */
.btn {
    display: inline-block;
    padding: 14px 30px;
    border-radius: var(--border-radius);
    font-family: var(--font-heading);
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-speed);
    border: none;
    cursor: pointer;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--white-color);
    box-shadow: var(--box-shadow);
}

.btn-primary:hover {
    background-color: #218838; /* Um pouco mais escuro */
    transform: translateY(-3px);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--white-color);
    box-shadow: var(--box-shadow);
}

.btn-secondary:hover {
    background-color: #5a6268;
    transform: translateY(-3px);
}

.btn-light-outline {
    background: transparent;
    color: var(--white-color);
    border: 2px solid var(--white-color);
}

.btn-light-outline:hover {
    background-color: var(--white-color);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.2rem;
}

/* Header */
.main-header {
    background-color: var(--white-color);
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.main-header .logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.main-header nav ul {
    display: flex;
}

.main-header nav ul li {
    margin-left: 30px;
}

.main-header nav ul li a {
    font-weight: 600;
    color: var(--dark-bg);
    padding: 5px 0;
    position: relative;
}

.main-header nav ul li a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-speed);
}

.main-header nav ul li a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://via.placeholder.com/1600x900/007bff/FFFFFF?text=Fundo+Hero') center/cover no-repeat;
    /* Substitua a URL por uma imagem de fundo ampla e esteticamente agradável, talvez um degradê suave ou uma imagem abstrata da pele. */
    height: 80vh;
    display: flex;
    align-items: center;
    color: var(--white-color);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4); /* Overlay para legibilidade */
    z-index: 1;
}

.hero-section .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    position: relative;
    z-index: 2;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    animation: fadeInLeft 1s forwards;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    animation: fadeInRight 1s forwards;
}

/* Section "Cuide da Sua Pele Sem Complicações" */
#care-intro h3 {
    margin-bottom: 20px;
    font-size: 2.5rem;
    color: var(--dark-bg);
}

#care-intro p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

/* Como Funciona Section */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.step-card {
    background-color: var(--white-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);
}

.step-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.step-card .step-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.step-card h4 {
    margin-bottom: 10px;
}

.step-card p {
    font-size: 0.95rem;
    color: #666;
}

/* Por Que Nos Escolher Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(5px);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    color: var(--white-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition-speed), background-color var(--transition-speed);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.feature-card:hover {
    transform: translateY(-10px);
    background-color: rgba(255, 255, 255, 0.25);
}

.feature-card i {
    font-size: 3rem;
    color: var(--white-color);
    margin-bottom: 15px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}

.feature-card h4 {
    color: var(--white-color);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Investimento Section */
.investment-options {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.option-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    text-align: center;
    width: 380px;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.option-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.option-card h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.option-card img {
    max-width: 100%;
    border-radius: var(--border-radius);
    margin-top: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.option-card .btn {
    margin-top: 20px;
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 40px auto 0;
}

.faq-item {
    background-color: var(--white-color);
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.faq-question {
    width: 100%;
    background-color: var(--primary-color);
    color: var(--white-color);
    border: none;
    padding: 20px;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-speed);
}

.faq-question:hover, .faq-question.active {
    background-color: var(--gradient-start);
}

.faq-question i {
    transition: transform var(--transition-speed);
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-speed) ease-out, padding var(--transition-speed) ease-out;
    background-color: var(--light-bg);
}

.faq-answer.show {
    max-height: 200px; /* Ajuste conforme o conteúdo, ou use JS para calcular dinamicamente */
    padding: 20px;
}

/* Contact Section (CTA) */
.bg-cta h3 {
    font-size: 2.8rem;
    margin-bottom: 25px;
}

.bg-cta p {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.contact-info {
    margin-top: 40px;
    font-size: 1.1rem;
    opacity: 0.9;
}

.contact-info p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-info i {
    margin-right: 10px;
    font-size: 1.3rem;
    color: var(--white-color);
}

/* Footer */
.main-footer {
    background-color: var(--dark-bg);
    color: var(--white-color);
    padding: 30px 0;
    text-align: center;
    font-size: 0.9rem;
}

.main-footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.social-icons a {
    color: var(--white-color);
    font-size: 1.5rem;
    margin: 0 10px;
    transition: color var(--transition-speed);
}

.social-icons a:hover {
    color: var(--primary-color);
}

/* Animações */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsividade */
@media (max-width: 992px) {
    .main-header .container {
        flex-direction: column;
    }
    .main-header nav ul {
        margin-top: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .main-header nav ul li {
        margin: 0 15px 10px;
    }

    .hero-section .container {
        flex-direction: column;
        text-align: center;
    }
    .hero-content, .hero-image {
        max-width: 100%;
        margin-bottom: 40px;
    }
    .hero-image {
        justify-content: center;
    }
    .hero-content h2 {
        font-size: 2.2rem;
    }
    .hero-section {
        height: auto;
        padding: 100px 0;
    }

    .investment-options {
        flex-direction: column;
        align-items: center;
    }
    .option-card {
        width: 100%;
        max-width: 450px;
    }
}

@media (max-width: 768px) {
    h2 {
        font-size: 2rem;
    }
    h3 {
        font-size: 1.8rem;
    }
    .section-padded {
        padding: 50px 0;
    }
    .steps-grid, .features-grid {
        grid-template-columns: 1fr;
    }
    .btn-large {
        padding: 15px 30px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .main-header .logo {
        font-size: 1.8rem;
    }
    .main-header nav ul li {
        margin: 0 10px 10px;
        font-size: 0.9rem;
    }
    .hero-content h2 {
        font-size: 1.8rem;
    }
    .hero-content p {
        font-size: 1rem;
    }
    .step-card, .feature-card, .option-card {
        padding: 20px;
    }
    .faq-question {
        font-size: 1rem;
        padding: 15px;
    }
    .contact-info p {
        font-size: 1rem;
    }
}