@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,500;0,600;1,400&display=swap');

:root {
    --color-primary: #2D2D2D; /* Grafite suave para títulos e fundos */
    --color-secondary: #555555; /* Cinza para textos complementares */
    --color-accent: #D4AF37; /* Dourado/Champagne da marca */
    --color-medical: #2D2D2D; /* Unificar cor médica e primary */
    --color-bg-light: #FFFFFF; /* Base branca */
    --color-bg-alt: #F6F4EF; /* Off-white muito sutil para intercalar seções */
    --color-bg-dark: #1A1A1A; /* Fundo footer */
    --color-text-dark: #2D2D2D;
    --color-text-light: #FFFFFF;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    --space-xs: 1.5rem;
    --space-sm: 3rem;
    --space-md: 6rem;
    --space-lg: 9rem;
    
    --transition: all 0.4s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); color: var(--color-text-dark); background: var(--color-bg-light); line-height: 1.7; overflow-x: hidden; -webkit-font-smoothing: antialiased; }

img { max-width: 100%; height: auto; object-fit: cover; }

h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 400; line-height: 1.15; color: var(--color-primary); }
.headline-xl { font-size: clamp(2.5rem, 6vw, 4.5rem); letter-spacing: -1px; }
.headline-lg { font-size: clamp(2rem, 5vw, 3.5rem); }
.text-label { font-family: var(--font-body); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 3px; color: var(--color-accent); font-weight: 500; display: block; margin-bottom: 1rem; }

.container { width: 100%; max-width: 1400px; margin: 0 auto; padding: 0 2rem; }
.section { padding: var(--space-lg) 0; }
.section-dark { background: var(--color-bg-dark); color: var(--color-text-light); }
.section-dark h2, .section-dark h3 { color: var(--color-text-light); }
.section-alt { background: var(--color-bg-alt); }

/* HEADER ESTÉTICA DENTAL */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: 90px; background: var(--color-bg-light); border-bottom: 1px solid rgba(0,0,0,0.03); transition: var(--transition); display: flex; align-items: center; }
.header.scrolled { height: 80px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); }
.header .container { display: flex; justify-content: space-between; align-items: center; width: 100%; }

/* LOGO HEADER */
.logo { display: flex; align-items: center; }
.logo img { width: 170px; height: auto; object-fit: contain; }
@media (max-width: 992px) { .logo img { width: 145px; } }
@media (max-width: 768px) { .logo img { width: 125px; } .header { height: 75px; } .header.scrolled { height: 70px; } }
.logo { font-size: 0; line-height: 0; }
.nav-links { display: flex; gap: 2.5rem; align-items: center; }
.nav-links a { font-family: var(--font-body); color: var(--color-primary); text-decoration: none; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 2px; transition: var(--transition); }
.nav-links a:hover { color: var(--color-medical); }

.menu-toggle { display: none; background: transparent; border: none; color: var(--color-primary); font-size: 1.5rem; cursor: pointer; padding: 0.5rem; min-width: 44px; min-height: 44px; align-items: center; justify-content: center; z-index: 1001; }

/* Botões */
.btn, a.btn { display: inline-flex; align-items: center; justify-content: center; padding: 1.25rem 2.5rem; font-family: var(--font-body); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; text-decoration: none; transition: var(--transition); cursor: pointer; border: 1px solid transparent; min-height: 44px; border-radius: 0; font-weight: 600; text-align: center; }
.btn-primary, a.btn-primary, .nav-links a.btn-primary, .nav-links a.btn-primary:visited { background: var(--color-primary); color: #FFFFFF; border-color: var(--color-primary); }
.btn-primary:hover, a.btn-primary:hover, .nav-links a.btn-primary:hover, .btn-primary:focus { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-primary); }
.btn-outline, a.btn-outline, .nav-links a.btn-outline { background: transparent; border: 1px solid var(--color-primary); color: var(--color-primary); }
.btn-outline:hover, a.btn-outline:hover, .nav-links a.btn-outline:hover { background: var(--color-primary); border-color: var(--color-primary); color: #FFFFFF; }
.btn-medical, a.btn-medical { background: var(--color-medical); color: #FFFFFF; border-color: var(--color-medical); }
.btn-medical:hover, a.btn-medical:hover { background: var(--color-primary); border-color: var(--color-primary); color: #FFFFFF; }

/* Hero Cinematográfico 90vh */
.hero { display: flex; min-height: 90vh; padding-top: 6rem; background: var(--color-bg-light); align-items: stretch; position: relative; }
.hero-content { flex: 0 0 55%; display: flex; flex-direction: column; justify-content: center; padding: 4rem 8% 4rem 5%; z-index: 2; }
.hero-image { flex: 0 0 45%; background: url('https://images.unsplash.com/photo-1606811841689-23dfddce3e95?auto=format&fit=crop&q=80') center/cover; position: relative; }
.hero-image::before { content: ''; position: absolute; inset: 0; background: linear-gradient(to right, var(--color-bg-light) 0%, transparent 15%); }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 3rem; }
.hero-tags { margin-top: 3rem; font-size: 0.75rem; color: var(--color-medical); text-transform: uppercase; letter-spacing: 2px; }

/* Primeira Seção: Clínica / Dentista */
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.intro-img { width: 100%; height: 600px; object-fit: cover; }

/* Tratamentos Editoriais */
.treatments { background: var(--color-bg-alt); }
.t-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 2rem; margin-top: 4rem; }
.t-card { position: relative; overflow: hidden; background: var(--color-bg-light); display: flex; flex-direction: column; height: 100%; }
.t-img { width: 100%; height: 350px; object-fit: cover; transition: transform 1s; }
.t-card:hover .t-img { transform: scale(1.03); }
.t-content { padding: 2rem; flex: 1; display: flex; flex-direction: column; }
.t-content h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.t-content p { color: var(--color-secondary); font-size: 0.875rem; margin-bottom: 2rem; flex: 1; }
.t-link { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 2px; color: var(--color-medical); text-decoration: none; font-weight: 600; display: inline-flex; align-items: center; }

/* Assinatura / Frase */
.signature-section { background: url('https://images.unsplash.com/photo-1598256989800-fea5f6c8d0bd?auto=format&fit=crop&q=80') center/cover fixed; padding: var(--space-lg) 0; position: relative; color: white; text-align: center; }
.signature-section::before { content: ''; position: absolute; inset: 0; background: rgba(32, 32, 30, 0.7); }
.signature-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }

/* Planejamento & Scanner */
.tech-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.timeline-dark { border-left: 1px solid rgba(255,255,255,0.1); padding-left: 2rem; display: flex; flex-direction: column; gap: 2rem; }
.tl-item { position: relative; }
.tl-item::before { content: ''; position: absolute; left: -2.35rem; top: 8px; width: 12px; height: 12px; background: var(--color-medical); border-radius: 50%; }
.tl-item h4 { color: white; font-size: 1.25rem; font-family: var(--font-heading); margin-bottom: 0.25rem; }

/* Especialista & Experiência */
.specialist-img { width: 100%; height: 700px; object-fit: cover; }
.exp-list { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 3rem; }
.exp-item { border-top: 1px solid var(--color-accent); padding-top: 1.5rem; }

/* FOOTER ULTRA PREMIUM */
.footer { background-color: #1D1D1B; color: #EAE8E3; padding: 80px 0 20px 0; font-family: var(--font-body); position: relative; overflow: hidden; }
.footer-watermark { position: absolute; top: -50px; right: -50px; width: 300px; opacity: 0.03; pointer-events: none; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 4rem; margin-bottom: 60px; }
.footer-col h4 { font-family: var(--font-heading); color: var(--color-accent); font-size: 0.85rem; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 1.5rem; font-weight: 500; }
.footer-col p { font-size: 0.95rem; line-height: 1.6; color: rgba(234, 232, 227, 0.8); margin-bottom: 1rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.75rem; }
.footer-col ul li a { color: rgba(234, 232, 227, 0.8); text-decoration: none; font-size: 0.95rem; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-logo { max-width: 180px; margin-bottom: 1.5rem; filter: brightness(0) invert(1); }

.footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; color: rgba(255,255,255,0.5); }
.footer-bottom a { color: rgba(255,255,255,0.7); text-decoration: none; transition: var(--transition); }
.footer-bottom a:hover { color: var(--color-accent); }

@media (max-width: 992px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
}
@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .footer-bottom { flex-direction: column; text-align: center; gap: 1rem; }
}

/* Animações e Utilidades */
.reveal { opacity: 0; transform: translateY(30px); transition: all 1s cubic-bezier(0.25, 1, 0.5, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }

@media (max-width: 992px) {
    .hero { flex-direction: column; min-height: auto; }
    .hero-content { flex: none; width: 100%; padding: 8rem 5% 4rem; }
    .hero-image { flex: none; width: 100%; height: 60vh; }
    .hero-image::before { background: linear-gradient(to bottom, var(--color-bg-light) 0%, transparent 20%); }
    .intro-grid, .tech-grid, .about-grid { grid-template-columns: 1fr; }
    .menu-toggle { display: flex; }
    .nav-links { position: fixed; top: 0; right: -100%; width: 300px; max-width: 80%; height: 100vh; background: var(--color-bg-light); flex-direction: column; padding: 6rem 2rem 2rem; transition: right 0.4s ease; box-shadow: -5px 0 30px rgba(0,0,0,0.1); }
    .nav-links.active { right: 0; }
    .nav-links a { font-size: 1rem; padding: 1rem 0; width: 100%; border-bottom: 1px solid rgba(0,0,0,0.05); }
}

@media (max-width: 480px) {
    .hero-buttons, .exp-list { flex-direction: column; width: 100%; grid-template-columns: 1fr; }
    .btn { width: 100%; }
}