/* ============================================================
   APARELHO DE RONCO — CSS Global Premium
   Site: aparelhoderonco.com.br
   Dra. Carolina Nunes Santos Barbosa
   ============================================================ */
:root{--primary:#1a3a5c;--primary-dark:#0d1b2a;--accent:#0d7a6f;--accent-light:#4cb8a8;--gold:#c8963e;--light:#f8f9fa;--white:#fff;--text:#2d3748;--text-light:#718096;--border:#e2e8f0;--radius:12px;--shadow:0 4px 20px rgba(0,0,0,0.08);--shadow-lg:0 10px 40px rgba(0,0,0,0.12);--transition:all .3s cubic-bezier(0.23,1,0.32,1)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;color:var(--text);line-height:1.7;background:var(--white);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary)}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.bg-light{background:var(--light)}
.bg-dark{background:var(--primary-dark);color:var(--white)}
h1,h2,h3,h4{font-weight:700;line-height:1.3;color:var(--primary)}
h1{font-size:clamp(1.8rem,4vw,2.8rem)}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:1.3rem}
p{margin-bottom:1rem}
.section-eyebrow{display:inline-block;background:rgba(13,122,111,0.1);color:var(--accent);padding:6px 16px;border-radius:20px;font-size:0.85rem;font-weight:600;margin-bottom:14px;text-transform:uppercase;letter-spacing:0.5px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-weight:600;font-size:1rem;border:none;cursor:pointer;transition:var(--transition);text-decoration:none}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-wa{background:#25d366;color:#fff}
.btn-wa:hover{background:#1da851;color:#fff}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-lg{padding:18px 40px;font-size:1.1rem}
.btn svg{width:20px;height:20px;fill:currentColor}
/* Navbar */
.navbar{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,0.98);backdrop-filter:blur(10px);box-shadow:0 2px 10px rgba(0,0,0,0.06)}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.navbar-brand{display:flex;flex-direction:column;text-decoration:none}
.brand-name{font-size:1.3rem;font-weight:800;color:var(--primary)}
.brand-sub{font-size:0.75rem;color:var(--text-light)}
.navbar-nav{display:flex;gap:28px;align-items:center}
.navbar-nav a{color:var(--text);font-weight:500;font-size:0.95rem}
.navbar-nav a:hover,.navbar-nav a.active{color:var(--accent)}
.navbar-cta{display:flex;align-items:center;gap:12px}
.btn-nav-wa{display:flex;align-items:center;gap:6px;background:#25d366;color:#fff;padding:10px 20px;border-radius:50px;font-weight:600;font-size:0.9rem;text-decoration:none}
.btn-nav-wa:hover{background:#1da851;color:#fff}
.btn-nav-wa svg{width:18px;height:18px;fill:currentColor}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer}
.hamburger span{width:25px;height:3px;background:var(--primary);border-radius:2px;transition:var(--transition)}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(6px,6px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}
/* Hero */
.hero{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(13,122,111,0.15) 0%,transparent 70%);border-radius:50%}
.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:50px;align-items:center;position:relative;z-index:1}
.hero h1{color:#fff;margin-bottom:16px}
.hero p{color:rgba(255,255,255,0.8);font-size:1.15rem;margin-bottom:28px}
.hero-badges{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.hero-badge{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);padding:8px 18px;border-radius:50px;font-size:0.85rem;color:#fff}
.hero-img{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.hero-img img{width:100%}
.hero-stats{display:flex;gap:30px;margin-top:36px;padding-top:28px;border-top:1px solid rgba(255,255,255,0.15)}
.hero-stat{text-align:center}
.hero-stat-num{font-size:2rem;font-weight:800;color:var(--accent-light)}
.hero-stat-label{font-size:0.8rem;color:rgba(255,255,255,0.6)}
/* Cards */
.card{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition:var(--transition)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-icon{width:56px;height:56px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:16px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px}
/* Features */
.feature-icon{width:50px;height:50px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent-light));display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.3rem;margin-bottom:14px}
/* Comparison Table */
.comparison{width:100%;border-collapse:collapse;margin:20px 0}
.comparison th{background:var(--primary);color:#fff;padding:14px;text-align:left;font-size:0.9rem}
.comparison td{padding:14px;border-bottom:1px solid var(--border)}
.comparison tr:hover{background:var(--light)}
.comparison .check{color:#2d6a4f;font-weight:700}
.comparison .cross{color:#c1121f}
/* FAQ */
.faq-item{background:#fff;border-radius:var(--radius);margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow)}
.faq-question{padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:var(--primary);font-size:1.05rem}
.faq-question::after{content:'+';font-size:1.5rem;color:var(--accent);transition:var(--transition)}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.3s ease;padding:0 24px}
.faq-item.active .faq-answer{max-height:500px;padding:0 24px 20px}
.faq-answer p{color:var(--text-light)}
/* Blog */
.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.blog-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);display:flex;flex-direction:column}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.blog-card-cat{padding:6px 14px;font-size:0.75rem;font-weight:600;border-radius:20px;margin:16px 16px 0;align-self:flex-start}
.blog-card-body{padding:16px;flex:1;display:flex;flex-direction:column}
.blog-card-title{font-size:1.05rem;margin-bottom:8px}
.blog-card-title a{color:var(--primary)}
.blog-card-title a:hover{color:var(--accent)}
.blog-card-desc{color:var(--text-light);font-size:0.9rem;flex:1;margin-bottom:12px}
.blog-card-link{color:var(--accent);font-weight:600;font-size:0.9rem}
/* Article */
.article-header{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:60px 0 40px}
.article-header h1{color:#fff}
.article-meta{display:flex;gap:16px;margin-top:14px;font-size:0.85rem;color:rgba(255,255,255,0.6)}
.article-body{max-width:800px;margin:0 auto;padding:40px 20px}
.article-body h2{margin:32px 0 14px}
.article-body h3{margin:24px 0 10px}
.article-body p{margin-bottom:16px;line-height:1.8}
.article-body ul,.article-body ol{margin:16px 0 16px 24px}
.article-body li{margin-bottom:8px}
/* Breadcrumb */
.breadcrumb{background:var(--light);padding:12px 0;font-size:0.85rem}
.breadcrumb-list{list-style:none;display:flex;gap:8px;align-items:center}
.breadcrumb-list li a{color:var(--accent)}
.breadcrumb-list li::after{content:'›';color:var(--text-light);margin-left:8px}
.breadcrumb-list li:last-child::after{display:none}
/* Footer */
.footer{background:var(--primary-dark);color:rgba(255,255,255,0.7);padding:60px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .brand-name{color:#fff;font-size:1.4rem}
.footer-brand .brand-sub{color:rgba(255,255,255,0.5);font-size:0.85rem}
.footer-brand p{margin:14px 0;font-size:0.9rem}
.footer-social{display:flex;gap:12px;margin-top:16px}
.footer-social a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,0.1);display:flex;align-items:center;justify-content:center;transition:var(--transition)}
.footer-social a:hover{background:var(--accent)}
.footer-social svg{width:20px;height:20px;fill:#fff}
.footer-col h5{color:#fff;margin-bottom:14px;font-size:1rem}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px}
.footer-col a{color:rgba(255,255,255,0.6);font-size:0.9rem}
.footer-col a:hover{color:var(--accent-light)}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,0.1);font-size:0.85rem}
/* WhatsApp Float */
.wa-float{position:fixed;bottom:24px;right:24px;z-index:9999}
.wa-float a{display:flex;align-items:center;justify-content:center;width:60px;height:60px;border-radius:50%;background:#25d366;box-shadow:0 4px 20px rgba(37,211,102,0.4);transition:var(--transition)}
.wa-float a:hover{transform:scale(1.1)}
.wa-float svg{width:30px;height:30px;fill:#fff}
.wa-pulse{position:absolute;width:60px;height:60px;border-radius:50%;background:#25d366;animation:pulse 2s infinite;z-index:-1}
@keyframes pulse{0%{transform:scale(1);opacity:0.7}100%{transform:scale(1.5);opacity:0}}
/* Symptom Checker */
.symptom-checker{background:linear-gradient(135deg,#e8f5e9,#f1f8e9);border-radius:var(--radius);padding:40px;margin:30px 0}
.symptom-item{display:flex;align-items:center;gap:12px;padding:12px;background:#fff;border-radius:8px;margin-bottom:8px;cursor:pointer;transition:var(--transition)}
.symptom-item:hover{background:#f0f7f0}
.symptom-item input{width:20px;height:20px;accent-color:var(--accent)}
.symptom-item label{cursor:pointer;font-size:0.95rem}
.symptom-result{margin-top:20px;padding:20px;border-radius:8px;text-align:center;display:none}
.symptom-result.show{display:block}
.symptom-result.high{background:#fee;color:#c1121f}
.symptom-result.medium{background:#fff3cd;color:#856404}
.symptom-result.low{background:#d4edda;color:#155724}
/* Stats */
.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;text-align:center}
.stat-card{padding:30px 20px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.stat-num{font-size:2.5rem;font-weight:800;color:var(--accent)}
.stat-label{font-size:0.9rem;color:var(--text-light);margin-top:6px}
/* CTA Section */
.cta-section{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;text-align:center;padding:70px 0}
.cta-section h2{color:#fff;margin-bottom:16px}
.cta-section p{color:rgba(255,255,255,0.7);max-width:500px;margin:0 auto 28px}
/* Responsive */
@media(max-width:968px){.hero-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}}
@media(max-width:768px){.navbar-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:20px;box-shadow:var(--shadow-lg);gap:16px}.navbar-nav.open{display:flex}.hamburger{display:flex}.navbar-cta{display:none}.hero-stats{flex-direction:column;gap:16px}.section{padding:50px 0}.hero{padding:50px 0}}