/* ============================================================
   Site Institucional — Dr. Alberto Jun
   Design System & Estilos Principais
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
    --primary-dark: #0a1628;
    --primary-navy: #1a2744;
    --primary-navy-light: #243352;
    --accent-gold: #c9a96e;
    --accent-gold-hover: #d4b87a;
    --accent-gold-dark: #b8944f;
    --text-light: #f8f9fa;
    --text-muted-light: #a8b2c1;
    --text-dark: #212529;
    --bg-light: #f5f5f0;
    --bg-white: #ffffff;
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    --transition: all 0.3s ease;
}

/* ---- Reset & Base ---- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 { font-family: var(--font-heading); font-weight: 700; line-height: 1.2; }

.text-gold { color: var(--accent-gold); }

/* ---- Buttons ---- */
.btn-gold {
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
    color: #fff; border: none; font-weight: 600; letter-spacing: 0.5px;
    padding: 12px 32px; border-radius: 4px; transition: var(--transition);
}
.btn-gold:hover { background: linear-gradient(135deg, var(--accent-gold-hover), var(--accent-gold)); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(201,169,110,.35); }

.btn-outline-gold {
    border: 2px solid var(--accent-gold); color: var(--accent-gold);
    font-weight: 600; padding: 10px 30px; border-radius: 4px; transition: var(--transition); background: transparent;
}
.btn-outline-gold:hover { background: var(--accent-gold); color: #fff; transform: translateY(-2px); }

/* ---- Navbar ---- */
#mainNavbar {
    padding: 20px 0; transition: var(--transition);
    background: rgba(10,22,40,.95);
}
#mainNavbar.scrolled {
    background: rgba(10,22,40,.99) !important; padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0,0,0,.3); backdrop-filter: blur(10px);
}
.navbar-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-icon { font-size: 1.6rem; color: var(--accent-gold); }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { color: #fff; font-family: var(--font-heading); font-size: 1.15rem; }
.brand-text small { color: var(--accent-gold); font-size: 0.7rem; letter-spacing: 2px; text-transform: uppercase; }
.navbar-nav .nav-link { color: rgba(255,255,255,.8); font-weight: 500; font-size: 0.9rem; letter-spacing: 0.5px; transition: var(--transition); padding: 8px 16px !important; }
.navbar-nav .nav-link:hover { color: var(--accent-gold); }
@media (max-width: 991px) {
    #mainNavbar .navbar-collapse { 
        background: var(--primary-navy) !important; 
        padding: 1rem; 
        border-radius: 12px; 
        margin-top: 15px; 
        box-shadow: 0 10px 40px rgba(0,0,0,0.6);
        border: 1px solid rgba(255, 215, 0, 0.1); /* Subtle gold border */
    }
}

/* ---- Hero Section ---- */
.hero-section {
    position: relative; min-height: 100vh; display: flex; align-items: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-navy) 50%, #0d1f3c 100%);
    overflow: hidden; padding-top: 80px;
}
.hero-overlay {
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 70% 50%, rgba(201,169,110,.08) 0%, transparent 60%);
}
.hero-particles {
    position: absolute; inset: 0; opacity: .15;
    background-image: radial-gradient(2px 2px at 20% 30%, rgba(201,169,110,.5) 0%, transparent 100%),
                      radial-gradient(2px 2px at 40% 70%, rgba(201,169,110,.3) 0%, transparent 100%),
                      radial-gradient(1px 1px at 60% 20%, rgba(255,255,255,.3) 0%, transparent 100%),
                      radial-gradient(1px 1px at 80% 60%, rgba(201,169,110,.4) 0%, transparent 100%);
}
.hero-content { position: relative; z-index: 2; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px; padding: 8px 20px;
    background: rgba(201,169,110,.12); border: 1px solid rgba(201,169,110,.25);
    border-radius: 50px; color: var(--accent-gold); font-size: 0.85rem; font-weight: 500; margin-bottom: 24px;
}
.hero-title { font-size: clamp(2.2rem, 5vw, 3.8rem); color: #fff; margin-bottom: 24px; }
.hero-subtitle { font-size: 1.1rem; color: var(--text-muted-light); max-width: 560px; margin-bottom: 36px; line-height: 1.8; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat-number { display: block; font-family: var(--font-heading); font-size: 2rem; color: var(--accent-gold); font-weight: 700; }
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted-light); text-transform: uppercase; letter-spacing: 1px; }

/* ---- Section Padding & Labels ---- */
.section-padding { padding: 100px 0; }
.section-label { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; color: var(--accent-gold); font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 2px; }
.label-line { display: block; width: 40px; height: 2px; background: var(--accent-gold); }
.section-title { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 16px; }
.section-subtitle { color: #6c757d; font-size: 1.05rem; max-width: 600px; margin: 0 auto; }

/* ---- About Section ---- */
.about-section { background: var(--bg-white); }
.about-image-wrapper { position: relative; max-width: 420px; margin: 0 auto; }
.about-image-frame { position: relative; border-radius: 8px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.15); }
.about-image { width: 100%; height: auto; display: block; }
.about-image-accent {
    position: absolute; bottom: -15px; right: -15px; width: 120px; height: 120px;
    border: 3px solid var(--accent-gold); border-radius: 8px; z-index: -1;
}
.about-experience-badge {
    position: absolute; bottom: 20px; left: -30px; background: var(--accent-gold);
    color: #fff; padding: 16px 20px; border-radius: 8px; text-align: center;
    box-shadow: 0 10px 30px rgba(201,169,110,.4);
}
.exp-number { display: block; font-family: var(--font-heading); font-size: 2rem; font-weight: 700; line-height: 1; }
.exp-text { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1px; line-height: 1.3; }
.about-text { color: #555; margin-bottom: 16px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.about-feature { display: flex; align-items: center; gap: 8px; font-weight: 500; font-size: 0.9rem; }
.about-feature i { color: var(--accent-gold); font-size: 1.1rem; }

/* ---- Areas Section ---- */
.areas-section { background: var(--bg-light); }
.area-card {
    background: #fff; border-radius: 8px; padding: 36px 28px; height: 100%;
    border: 1px solid #e8e8e8; transition: var(--transition); position: relative; overflow: hidden;
}
.area-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-dark)); transform: scaleX(0);
    transition: transform 0.4s ease; transform-origin: left;
}
.area-card:hover { transform: translateY(-6px); box-shadow: 0 15px 40px rgba(0,0,0,.1); }
.area-card:hover::before { transform: scaleX(1); }
.area-card-icon { width: 60px; height: 60px; border-radius: 12px; background: linear-gradient(135deg, rgba(201,169,110,.12), rgba(201,169,110,.05)); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.area-card-icon i { font-size: 1.6rem; color: var(--accent-gold); }
.area-card-title { font-size: 1.2rem; margin-bottom: 12px; color: var(--primary-dark); }
.area-card-text { color: #666; font-size: 0.9rem; line-height: 1.7; margin-bottom: 16px; }
.area-card-link { color: var(--accent-gold); font-weight: 600; font-size: 0.85rem; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.area-card-link:hover { color: var(--accent-gold-dark); gap: 10px; }

/* ---- Differentials Section ---- */
.differentials-section { background: var(--primary-dark); color: #fff; }
.diff-cards { display: flex; flex-direction: column; gap: 20px; }
.diff-card {
    display: flex; gap: 20px; padding: 24px; background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.08); border-radius: 8px; transition: var(--transition);
}
.diff-card:hover { background: rgba(201,169,110,.08); border-color: rgba(201,169,110,.2); }
.diff-card-icon { width: 50px; height: 50px; min-width: 50px; border-radius: 10px; background: rgba(201,169,110,.15); display: flex; align-items: center; justify-content: center; }
.diff-card-icon i { font-size: 1.3rem; color: var(--accent-gold); }
.diff-card h4 { font-family: var(--font-body); font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.diff-card p { font-size: 0.85rem; color: var(--text-muted-light); margin: 0; line-height: 1.6; }

/* ---- Offices Section ---- */
.offices-section { background: var(--bg-light); }
.office-card {
    background: #fff; border-radius: 12px; padding: 36px 28px; text-align: center;
    border: 1px solid #e8e8e8; transition: var(--transition); height: 100%;
}
.office-card:hover { transform: translateY(-4px); box-shadow: 0 12px 35px rgba(0,0,0,.08); }
.office-card-icon { width: 64px; height: 64px; border-radius: 50%; background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark)); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
.office-card-icon i { font-size: 1.5rem; color: #fff; }
.office-card-city { font-size: 1.3rem; color: var(--primary-dark); margin-bottom: 12px; }
.office-card-address { color: #666; font-size: 0.95rem; line-height: 1.6; margin-bottom: 8px; }
.office-card .btn { margin: 4px; }

/* ---- CTA Section ---- */
.cta-section {
    padding: 80px 0; background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
    color: #fff; text-align: center;
}
.cta-title { font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 16px; }
.cta-subtitle { font-size: 1.05rem; opacity: .9; max-width: 500px; margin: 0 auto 32px; }
.cta-section .btn-gold { background: var(--primary-dark); color: #fff; }
.cta-section .btn-gold:hover { background: var(--primary-navy); box-shadow: 0 8px 25px rgba(0,0,0,.3); }

/* ---- Blog Section ---- */
.blog-section { background: var(--bg-white); }
.blog-card {
    background: #fff; border-radius: 8px; border: 1px solid #e8e8e8;
    height: 100%; display: flex; flex-direction: column; transition: var(--transition); overflow: hidden;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 12px 35px rgba(0,0,0,.08); }
.blog-card-header { padding: 20px 24px 0; }
.blog-card-date { font-size: 0.8rem; color: var(--accent-gold); font-weight: 500; }
.blog-card-body { padding: 12px 24px; flex: 1; }
.blog-card-title { font-size: 1.15rem; margin-bottom: 10px; }
.blog-card-title a { color: var(--primary-dark); text-decoration: none; transition: var(--transition); }
.blog-card-title a:hover { color: var(--accent-gold); }
.blog-card-excerpt { font-size: 0.9rem; color: #666; line-height: 1.6; }
.blog-card-footer { padding: 16px 24px 20px; }
.blog-read-more { color: var(--accent-gold); font-weight: 600; font-size: 0.85rem; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.blog-read-more:hover { color: var(--accent-gold-dark); gap: 10px; }

/* ---- Blog Post Page ---- */
.blog-breadcrumb a { color: var(--accent-gold); text-decoration: none; }
.blog-post-header { margin-bottom: 32px; }
.blog-post-meta { display: flex; gap: 20px; color: #888; font-size: 0.85rem; margin-bottom: 16px; }
.blog-post-title { font-size: clamp(1.6rem, 3vw, 2.4rem); color: var(--primary-dark); }
.blog-post-summary { font-size: 1.1rem; color: #666; margin-top: 16px; font-style: italic; }
.blog-divider { border-color: rgba(201,169,110,.3); margin: 36px 0; }
.blog-post-content { font-size: 1.05rem; line-height: 1.9; color: #444; }
.blog-post-content h2 { font-size: 1.5rem; color: var(--primary-dark); margin: 32px 0 16px; }
.blog-post-content p { margin-bottom: 16px; }
.blog-post-cta { background: var(--bg-light); padding: 32px; border-radius: 8px; text-align: center; border-left: 4px solid var(--accent-gold); }
.blog-post-cta h3 { font-size: 1.3rem; margin-bottom: 8px; }
.blog-post-cta p { color: #666; margin-bottom: 20px; }

/* ---- Footer ---- */
.site-footer { background: var(--primary-dark); color: var(--text-muted-light); padding: 80px 0 0; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .brand-icon { font-size: 1.4rem; color: var(--accent-gold); }
.footer-brand .brand-text strong { color: #fff; font-family: var(--font-heading); font-size: 1.1rem; }
.footer-brand .brand-text small { color: var(--accent-gold); font-size: 0.65rem; letter-spacing: 2px; text-transform: uppercase; }
.footer-brand .brand-text { display: flex; flex-direction: column; }
.footer-about { font-size: 0.9rem; line-height: 1.7; color: var(--text-muted-light); }
.footer-social { display: flex; gap: 12px; }
.footer-social a { width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.15); display: flex; align-items: center; justify-content: center; color: #fff; transition: var(--transition); text-decoration: none; }
.footer-social a:hover { background: var(--accent-gold); border-color: var(--accent-gold); color: #fff; }
.footer-title { color: #fff; font-family: var(--font-body); font-size: 1rem; font-weight: 600; margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.footer-title::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 2px; background: var(--accent-gold); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-muted-light); text-decoration: none; font-size: 0.9rem; transition: var(--transition); }
.footer-links a:hover { color: var(--accent-gold); padding-left: 4px; }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; font-size: 0.9rem; }
.footer-contact i { color: var(--accent-gold); margin-top: 3px; }
.footer-contact a { color: var(--text-muted-light); text-decoration: none; transition: var(--transition); }
.footer-contact a:hover { color: var(--accent-gold); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 24px 0; margin-top: 48px; }
.footer-bottom p { margin: 0; font-size: 0.85rem; }

/* ---- WhatsApp Float ---- */
.whatsapp-float {
    position: fixed; bottom: 28px; right: 28px; width: 60px; height: 60px;
    background: #25D366; color: #fff; border-radius: 50%; display: flex;
    align-items: center; justify-content: center; font-size: 1.8rem;
    box-shadow: 0 6px 20px rgba(37,211,102,.4); z-index: 9999;
    transition: var(--transition); text-decoration: none;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 8px 30px rgba(37,211,102,.5); color: #fff; }

/* ---- Fade-in Animations ---- */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ---- Responsive ---- */
@media (max-width: 991px) {
    .hero-title { font-size: 2.2rem; }
    .hero-stats { gap: 24px; }
    .about-experience-badge { left: 10px; }
    .about-features { grid-template-columns: 1fr; }
    .section-padding { padding: 60px 0; }
}
@media (max-width: 575px) {
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; }
    .hero-stats { justify-content: center; }
}