:root {
    --color-primary: #1E3A8A; 
    --color-accent: #0ea5e9; 
    --color-bg: #ffffff;
    --color-gray-light: #f8fafc;
    --color-text: #475569;
    --color-whatsapp: #25D366;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Lato', sans-serif;
}

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

body {
    font-family: var(--font-body); color: var(--color-text); line-height: 1.7;
    background-color: var(--color-bg); user-select: none; -webkit-user-select: none;
}

h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-primary); font-weight: 700; }
a { text-decoration: none; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.bg-light { background-color: var(--color-gray-light); }
section { padding: 80px 0; }

/* Navbar */
nav { position: fixed; top: 0; width: 100%; background-color: rgba(255, 255, 255, 0.98); box-shadow: 0 2px 10px rgba(0,0,0,0.05); z-index: 1000; }
.nav-inner { display: flex; justify-content: space-between; align-items: center; height: 90px; }
.logo { font-family: var(--font-heading); font-size: 1.8rem; color: var(--color-primary); display: flex; flex-direction: column; line-height: 1.1; }
.logo span { color: var(--color-accent); font-family: var(--font-body); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 2px; }
.nav-links { display: flex; list-style: none; gap: 30px; align-items: center; }
.nav-links a { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; transition: 0.3s; }
.nav-links a:hover, .nav-links a.active { color: var(--color-accent); }
.btn-call { background-color: var(--color-primary); color: #fff !important; padding: 12px 25px; border-radius: 4px; }
.btn-call:hover { background-color: var(--color-accent); }

/* Headers (Hero e Páginas Interiores ajustados) */
.hero { 
    height: 90vh; 
    background: linear-gradient(rgba(30, 58, 138, 0.8), rgba(30, 58, 138, 0.6)), url('images/hero-bg.jpg') center/cover no-repeat; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    text-align: center; 
    margin-top: 90px; 
}
.hero-content h1 { color: #fff; font-size: 4rem; margin-bottom: 20px; letter-spacing: 1px; }
.hero-content p { color: #e2e8f0; font-size: 1.2rem; max-width: 700px; margin: 0 auto 40px; font-weight: 300; }

.btn-primary { display: inline-block; background-color: var(--color-accent); color: #fff; padding: 16px 40px; font-size: 0.9rem; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; border-radius: 4px; transition: 0.3s; }
.btn-primary:hover { background-color: #fff; color: var(--color-primary); }

/* Cabeçalho Azul otimizado e equilibrado */
.page-header { 
    background: var(--color-primary); 
    padding: 40px 0 40px 0; /* Reduz drasticamente o padding superior e inferior */
    text-align: center; 
    color: white; 
    margin-top: 90px; /* Encaixa exatamente abaixo da navbar fixa de 90px */
}
.page-header h1 { 
    color: white; 
    font-size: 2.3rem; 
    margin-bottom: 8px; 
}
.page-header p { 
    font-size: 1.05rem; 
    font-weight: 300; 
    opacity: 0.9; 
}

/* Grelhas e Secções Base */
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 2.8rem; margin-bottom: 15px; }
.section-header .subtitle { color: var(--color-accent); text-transform: uppercase; letter-spacing: 3px; font-size: 0.9rem; font-weight: 700; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }

/* Clínica */
.about-img { width: 100%; border-radius: 8px; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }
.features-list { list-style: none; margin-top: 30px; }
.features-list li { display: flex; align-items: center; gap: 10px; margin-bottom: 15px; font-weight: 700; color: var(--color-primary); }
.features-list li::before { content: '✓'; color: var(--color-accent); font-size: 1.5rem; }

/* Equipa */
.doctor-card { background: #fff; border-radius: 8px; box-shadow: 0 5px 20px rgba(0,0,0,0.04); display: flex; overflow: hidden; margin-bottom: 40px; }
.doctor-img { width: 350px; min-width: 350px; background-color: #e2e8f0; object-fit: cover; }
.doctor-info { padding: 40px; display: flex; flex-direction: column; justify-content: center; }
.doctor-role { color: var(--color-accent); font-weight: 700; text-transform: uppercase; font-size: 0.9rem; margin-bottom: 20px; }
.doctor-credentials { list-style: none; margin-top: 15px; }
.doctor-credentials li { position: relative; padding-left: 25px; margin-bottom: 10px; font-weight: 600; color: var(--color-primary); }
.doctor-credentials li::before { content: '🎓'; position: absolute; left: 0; top: 0; }

/* Seguradoras */
.search-container { max-width: 600px; margin: 0 auto 50px; }
.search-bar { width: 100%; padding: 18px 25px; font-size: 1.1rem; border: 2px solid #e2e8f0; border-radius: 50px; font-family: var(--font-body); outline: none; transition: 0.3s; }
.search-bar:focus { border-color: var(--color-accent); }
.ins-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; }
.ins-card { border: 1px solid #e2e8f0; border-radius: 8px; padding: 25px; text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; height: 140px; background: #fff; transition: 0.3s; }
.ins-card:hover { border-color: var(--color-accent); transform: translateY(-3px); }
.ins-name { font-weight: 700; font-size: 1.2rem; color: var(--color-primary); }
.ins-type { font-size: 0.8rem; color: #94a3b8; text-transform: uppercase; margin-top: 5px; }

/* Tratamentos */
.service-card { background: #fff; padding: 40px; border-radius: 8px; border: 1px solid #e2e8f0; transition: 0.3s; text-align: center; }
.service-card:hover { box-shadow: 0 15px 40px rgba(0,0,0,0.06); border-color: var(--color-accent); }
.service-icon { width: 60px; height: 60px; background-color: var(--color-gray-light); color: var(--color-accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; margin: 0 auto 20px; }

/* Testemunhos & Contactos */
.testimonial-box { background: #fff; padding: 40px; border-radius: 8px; box-shadow: 0 5px 20px rgba(0,0,0,0.03); border-top: 4px solid var(--color-accent); }
.contact-info, .contact-form { background: #fff; padding: 40px; border-radius: 8px; box-shadow: 0 5px 20px rgba(0,0,0,0.02); }
.contact-form input, .contact-form textarea { width: 100%; padding: 15px; border: 1px solid #cbd5e1; border-radius: 4px; font-family: var(--font-body); margin-bottom: 20px; }
.btn-submit { background-color: var(--color-whatsapp); color: #fff; border: none; padding: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; cursor: pointer; border-radius: 4px; width: 100%; display: flex; justify-content: center; align-items: center; gap: 10px; }
.map-container { width: 100%; height: 300px; border-radius: 8px; overflow: hidden; margin-top: 20px; }

/* Elementos UI Globais */
.btn-scroll-up { position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; background-color: var(--color-accent); color: #fff; border: none; border-radius: 50%; cursor: pointer; display: flex; justify-content: center; align-items: center; opacity: 0; visibility: hidden; transition: 0.3s; z-index: 999; }
.btn-scroll-up.show { opacity: 1; visibility: visible; }
footer { background-color: #0f172a; color: #94a3b8; padding: 40px 0; text-align: center; font-size: 0.9rem; }

@media (max-width: 768px) {
    .nav-inner { flex-direction: column; height: auto; padding: 15px 0; gap: 15px; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .doctor-card { flex-direction: column; }
    .doctor-img { width: 100%; height: 300px; }
}

/* --- MENU RESPONSIVO PARA TELEMÓVEIS --- */
@media (max-width: 768px) {
    /* Garante que o container do menu se adapta */
    .nav-inner {
        position: relative;
        justify-content: space-between;
    }

    /* Esconde a lista de links por defeito em mobile */
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        padding: 20px 0;
        gap: 15px;
        text-align: center;
        border-top: 1px solid #e2e8f0;
        z-index: 9999;
    }

    /* Classe ativada por JS para mostrar o menu */
    .nav-links.active {
        display: flex !important;
    }

    /* Cria o botão de Hambúrguer (três barrinhas) que aparece só em telemóvel */
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 28px;
        height: 21px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 0;
        z-index: 10000;
    }

    .menu-toggle span {
        width: 100%;
        height: 3px;
        background-color: var(--color-primary);
        border-radius: 3px;
        transition: 0.3s;
    }
}

/* Em computadores, esconde o botão de hambúrguer */
@media (min-width: 769px) {
    .menu-toggle {
        display: none !important;
    }
}