/* /style.css - Final Polished Edition */

/* --- TABLE OF CONTENTS --- */
/* 1. Root Variables & Global Styles */
/* 2. Header & Navigation */
/* 3. Hero Section */
/* 4. Statistics Section */
/* 5. Core Content, Deliverables & About Us */
/* 6. Analysis Procedure & Video Showcase */
/* 7. Analyses & Ticker Section */
/* 8. FAQ & Contact Sections */
/* 9. Modals & Footer */
/* 10. Detail & Payment Page Styles */
/* 11. Animations & Utilities */
/* 12. Responsive Design */

/* --- 1. Root Variables & Global Styles --- */
:root {
    --primary-color: #4F46E5; /* Indigo */
    --secondary-color: #10B981; /* Emerald */
    --accent-color: #F59E0B; /* Amber */
    --dark-color: #111827; /* Gray-900 */
    --text-color: #374151; /* Gray-700 */
    --text-muted: #6B7280; /* Gray-500 */
    --bg-color: #ffffff;
    --bg-alt-color: #F9FAFB; /* Gray-50 */
    --border-color: #E5E7EB; /* Gray-200 */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Lato', sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 100%; scroll-padding-top: 100px; }
body { font-family: var(--font-body); line-height: 1.7; color: var(--text-color); background-color: var(--bg-color); overflow-x: hidden; opacity: 0; transition: opacity 0.5s ease-in-out; }
body.loaded { opacity: 1; }
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--dark-color); font-weight: 600; text-wrap: balance; }
h1 { font-size: clamp(2.8rem, 5vw, 4.2rem); line-height: 1.2; }
h2 { font-size: clamp(2.2rem, 4.5vw, 3rem); text-align: center; margin-bottom: 1rem; font-weight: 700; }
.section-header h2 { background: linear-gradient(135deg, var(--primary-color) 30%, var(--dark-color) 80%); -webkit-background-clip: text; background-clip: text; color: transparent; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
h4 { font-size: 1.1rem; color: var(--dark-color); }
p { color: var(--text-muted); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }
a { color: var(--primary-color); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--secondary-color); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
section { padding: 6rem 0; }
.section-bg-alt { background-color: var(--bg-alt-color); }
.section-header { text-align: center; margin-bottom: 4rem; max-width: 700px; margin-left: auto; margin-right: auto; }
.section-header p { font-size: 1.1rem; color: var(--text-muted); }

/* --- 2. Header & Navigation --- */
#main-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background-color: transparent; border-bottom: 1px solid transparent; transition: background-color 0.3s ease, border-color 0.3s; }
#main-header.scrolled, .header-static { background-color: rgba(17, 24, 39, 0.8); backdrop-filter: blur(10px); border-bottom-color: rgba(255, 255, 255, 0.1); }
#navbar { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { display: flex; align-items: center; gap: 0.75rem; }
.logo-gif { height: 50px; width: 50px; }
#nav-menu { display: flex; list-style: none; gap: 0.5rem; align-items: center; }
.nav-link { font-weight: 600; color: var(--dark-color); padding: 0.75rem 1.2rem; border-radius: 8px; position: relative; transition: color 0.3s, background-color 0.3s; text-align: center; display: flex; align-items: center; gap: 0.5rem; cursor: pointer; }
#main-header.scrolled .nav-link, .header-static .nav-link { color: #E5E7EB; }
.nav-link:hover { color: var(--primary-color); }
#main-header.scrolled .nav-link:hover, .header-static .nav-link:hover { color: white; background-color: rgba(255, 255, 255, 0.1); }
.nav-link::after { content: ''; position: absolute; bottom: -5px; left: 50%; transform: translateX(-50%); width: 0; height: 2px; background: var(--gradient-primary); border-radius: 2px; transition: width 0.3s ease; }
.nav-link:hover::after { width: 60%; }
.nav-link i { font-size: 0.75rem; transition: transform 0.3s ease; }
.dropdown { position: relative; }
.dropdown-content { display: none; position: absolute; top: 100%; left: 50%; transform: translate(-50%, 10px); background: white; border: 1px solid var(--border-color); border-radius: 12px; box-shadow: var(--shadow-lg); padding: 0.75rem; margin-top: 1rem; opacity: 0; visibility: hidden; transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s; z-index: 1001; }
#main-header.scrolled .dropdown-content, .header-static .dropdown-content { background: rgba(30, 41, 59, 0.9); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.1); }
.dropdown:hover .dropdown-content { display: block; opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.dropdown-single-column { min-width: 360px; border-top: 3px solid var(--primary-color); }
.dropdown-single-column a { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; font-size: 0.95rem; color: var(--text-color); border-radius: 6px; white-space: nowrap; transition: all 0.25s ease; border-bottom: 1px solid #eef2ff; }
#main-header.scrolled .dropdown-single-column a, .header-static .dropdown-single-column a { color: #D1D5DB; border-bottom: 1px solid rgba(255,255,255,0.05); }
.dropdown-single-column a:last-child { border-bottom: none; }
.dropdown-single-column a i { font-size: 1rem; width: 20px; text-align: center; color: var(--primary-color); opacity: 0.7; transition: all 0.25s ease; }
#main-header.scrolled .dropdown-single-column a i, .header-static .dropdown-single-column a i { color: var(--secondary-color); }
.dropdown-single-column a:hover { color: var(--primary-color); background-color: #EEF2FF; transform: translateX(5px); }
#main-header.scrolled .dropdown-single-column a:hover, .header-static .dropdown-single-column a:hover { color: white; background-color: rgba(255,255,255,0.1); }
.dropdown-single-column a:hover i { opacity: 1; transform: scale(1.1); }
.nav-actions { display: flex; gap: 1rem; align-items: center; }
.btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.7rem 1.5rem; border: none; border-radius: 50px; font-weight: 600; font-size: 0.9rem; transition: all 0.3s ease; cursor: pointer; }
.btn-primary { background: var(--primary-color); color: white; }
.btn-primary:hover { background: #4338CA; box-shadow: 0 0 20px rgba(79, 70, 229, 0.4); transform: translateY(-2px); }
.btn-secondary { background: transparent; color: var(--secondary-color); border: 2px solid var(--secondary-color); padding: calc(0.7rem - 2px) calc(1.5rem - 2px); }
.btn-secondary:hover { background: var(--secondary-color); color: var(--dark-color); }
.btn-whatsapp { background-color: #25D366; color: white; border: 2px solid #25D366; }
.btn-whatsapp:hover { background-color: #1DA851; border-color: #1DA851; color: white; box-shadow: 0 0 20px rgba(37, 211, 102, 0.5); transform: translateY(-2px); }
.btn-lg { padding: 0.9rem 2rem; font-size: 1rem; }
.menu-toggle { display: none; font-size: 1.5rem; color: var(--dark-color); background: none; border: none; }
#main-header.scrolled .menu-toggle, .header-static .menu-toggle { color: white; }

/* --- 3. Hero Section --- */
#hero { min-height: 100vh; background-color: var(--bg-alt-color); display: flex; align-items: center; padding: 100px 0 4rem 0; overflow: hidden; }
.hero-content { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 3rem; }
.hero-subtitle { font-size: 1.25rem; max-width: 550px; margin: 1.5rem 0 2.5rem 0; }
.hero-cta { display: flex; gap: 1rem; }
.hero-visual { position: relative; }
.hero-image { max-width: 100%; height: auto; }

/* --- 4. Statistics Section --- */
#stats { background: var(--gradient-primary); padding: 4rem 0; }
.stats-container { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3rem; text-align: center; }
.stat-item i { font-size: 2.8rem; color: white; opacity: 0.8; margin-bottom: 0.75rem; vertical-align: middle; }
.stat-number { font-size: 3.2rem; font-weight: 700; color: white; line-height: 1.2; }
.stat-label { color: rgba(255,255,255,0.9); margin-top: 0.5rem; font-size: 1.2rem; font-weight: 500; line-height: 1.3; }
.rating-line { display: flex; flex-direction: column; align-items: center; justify-content: center; }
.rating-line .stat-number { order: 2; margin-top: 0.5rem; }
.rating-line .rating-stars { order: 1; font-size: 1.8rem; color: #FFD700; }

/* --- 5. Core Content, Deliverables & About Us --- */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; }
.service-card { position: relative; text-align: center; padding: 2.5rem 2rem; border-radius: 12px; background: var(--bg-color); border: 1px solid var(--border-color); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.card-icon { display: inline-flex; align-items: center; justify-content: center; width: 60px; height: 60px; border-radius: 50%; color: white; font-size: 1.8rem; margin-bottom: 1.5rem; transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.service-card:hover { transform: translateY(-10px); box-shadow: 0 20px 30px -10px rgba(79, 70, 229, 0.15); }
.service-card:hover .card-icon { transform: translateY(-5px) scale(1.1); }
.card-border { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border-radius: 12px; border: 2px solid transparent; transition: border-image 0.4s ease; }
.service-card:hover .card-border { border-image: var(--gradient-primary) 1; }
.icon-1 { background: var(--primary-color); }
.icon-2 { background: var(--secondary-color); }
.icon-3 { background: var(--accent-color); }
.icon-4 { background: #EF4444; }
.icon-5 { background: #9333EA; }
.icon-6 { background: #DB2777; }
.service-card h3 { font-size: 1.25rem; color: var(--dark-color); }
.service-card p { font-size: 0.95rem; }

#deliverables { background: linear-gradient(135deg, #f5f7fa, #eef2ff); }
.deliverables-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 3rem; align-items: center; }
.deliverables-visual img { width: 100%; border-radius: 12px; box-shadow: var(--shadow-lg); }
.deliverables-list { list-style: none; padding: 0; margin-top: 2rem; display: flex; flex-direction: column; gap: 1rem; }
.deliverables-list li { display: flex; align-items: flex-start; gap: 1.5rem; background: white; padding: 1.5rem; border-radius: 12px; box-shadow: var(--shadow-md); transition: all 0.3s ease; }
.deliverables-list li:hover { transform: translateY(-8px) scale(1.02); box-shadow: var(--shadow-lg); }
.deliverable-icon { flex-shrink: 0; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-size: 1.8rem; transition: transform 0.3s ease; }
.deliverables-list li:hover .deliverable-icon { transform: rotate(-15deg) scale(1.1); }
.deliverables-list h4 { margin-bottom: 0.25rem; }
.deliverables-list p { margin: 0; font-size: 0.95rem; }

#about-us { background-color: white; }
.about-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 3rem; align-items: center; }
.about-visual { text-align: center; }
.about-visual img { width: 200px; height: 200px; border-radius: 50%; object-fit: cover; margin-bottom: 1rem; box-shadow: 0 10px 20px rgba(0,0,0,0.1); border: 4px solid white; }
.about-visual h4 { margin-bottom: 0.25rem; font-size: 1.4rem; color: var(--dark-color); }
.founder-title { font-weight: 500; color: var(--primary-color); }
.about-text h3 { margin-top: 0; }
.about-text strong { color: var(--primary-color); font-weight: 700; }

/* --- 6. Analysis Procedure & Video Showcase --- */
#process { background-color: var(--bg-alt-color); }
.procedure-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.procedure-tile { background-color: var(--bg-color); border-radius: 12px; box-shadow: var(--shadow-md); overflow: hidden; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.procedure-tile:hover { transform: translateY(-12px); box-shadow: var(--shadow-lg); }
.tile-image-wrapper { width: 100%; height: 200px; overflow: hidden; }
.procedure-tile img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease-out; }
.procedure-tile:hover img { transform: scale(1.05); }
.tile-content { padding: 2.5rem 1.5rem 1.5rem 1.5rem; position: relative; }
.step-number { position: absolute; top: -25px; left: 1.5rem; width: 50px; height: 50px; background: var(--gradient-primary); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700; border: 3px solid var(--bg-color); }
.tile-content h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }
.tile-content p { font-size: 0.9rem; }

.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.video-card { background: white; border-radius: 12px; box-shadow: var(--shadow-md); overflow: hidden; cursor: pointer; transition: all 0.3s ease; }
.video-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.video-thumbnail-wrapper { position: relative; }
.video-thumbnail-wrapper img { width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; display: block; transition: transform 0.4s ease; }
.video-card:hover .video-thumbnail-wrapper img { transform: scale(1.05); }
.video-thumbnail-wrapper::after { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.2); opacity: 0; transition: opacity 0.3s ease; }
.video-card:hover .video-thumbnail-wrapper::after { opacity: 1; }
.play-icon { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 60px; height: 60px; background: rgba(255,255,255,0.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--primary-color); box-shadow: 0 5px 15px rgba(0,0,0,0.2); transition: all 0.3s ease; z-index: 2; }
.video-card:hover .play-icon { transform: translate(-50%, -50%) scale(1.15); background: white; }
.video-card-content { padding: 1.5rem; }
.video-card-content h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }
.video-card-content p { font-size: 0.95rem; margin: 0; }

/* --- 7. Analyses & Ticker Section --- */
#analyses { background-color: white; }
.analysis-controls { display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 3rem; max-width: 800px; margin-left: auto; margin-right: auto; }
#search-input { width: 100%; padding: 0.8rem 1.5rem; border-radius: 50px; border: 1px solid var(--border-color); font-size: 1rem; }
#search-input:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2); }
.category-filters { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.filter-btn { padding: 0.5rem 1.2rem; border: 1px solid var(--border-color); background: var(--bg-color); color: var(--text-muted); border-radius: 50px; transition: all 0.3s; cursor: pointer; }
.filter-btn.active, .filter-btn:hover { background: var(--primary-color); color: white; border-color: var(--primary-color); }
#analysis-list { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.analysis-link { display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: center; padding: 1.2rem 1.5rem; border-radius: 12px; transition: all 0.3s; background: var(--bg-alt-color); border: 1px solid var(--border-color); }
.analysis-link:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--primary-color); }
.analysis-link-info h3 { font-size: 1.1rem; margin: 0; color: var(--dark-color); }
.analysis-link-info p { font-size: 0.9rem; margin: 0.25rem 0 0 0; }
.analysis-link-arrow i { font-size: 1.5rem; color: var(--primary-color); transition: transform 0.3s; }
.analysis-link:hover .analysis-link-arrow i { transform: translateX(5px); color: var(--secondary-color); }

.ticker-wrap { width: 100%; overflow: hidden; background: var(--gradient-primary); padding: 1.5rem 0; box-shadow: inset 0 5px 15px rgba(0,0,0,0.1); }
.ticker { display: inline-block; white-space: nowrap; animation: ticker-scroll 30s linear infinite; }
.ticker-item { display: inline-block; padding: 0 2rem; font-size: 1.5rem; font-weight: 600; color: white; text-shadow: 1px 1px 2px rgba(0,0,0,0.2); }
.ticker-item i { color: #FFD700; margin: 0 0.5rem; }
@keyframes ticker-scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* --- 8. FAQ & Contact Sections --- */
#faq { padding-bottom: 3rem; }
.faq-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.accordion-item { border: 1px solid var(--border-color); border-radius: 8px; margin-bottom: 1rem; overflow: hidden; }
.accordion-header { width: 100%; background: none; border: none; text-align: left; padding: 1.2rem 1.5rem; font-size: 1.05rem; font-weight: 600; color: var(--dark-color); display: flex; justify-content: space-between; align-items: center; cursor: pointer; }
.accordion-header i { transition: transform 0.3s; color: var(--primary-color); }
.accordion-header.active i { transform: rotate(180deg); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.4s ease-out; background: var(--bg-alt-color); }
.accordion-content p { padding: 1.2rem 1.5rem; margin: 0; font-size: 0.95rem; border-top: 1px solid var(--border-color); }
.contact-form { max-width: 600px; margin: 2rem auto 0 auto; }
.contact-form input, .contact-form textarea { width: 100%; padding: 1rem; margin-bottom: 1rem; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-alt-color); font-family: var(--font-body); }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--primary-color); }

/* --- 9. Modals & Footer --- */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(17, 24, 39, 0.6); backdrop-filter: blur(8px); z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 1rem; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; }
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal-content { background: var(--bg-color); padding: 2.5rem; border-radius: 12px; box-shadow: var(--shadow-lg); width: 100%; max-width: 420px; position: relative; transform: translateY(20px); transition: transform 0.3s ease; }
.modal-overlay.active .modal-content { transform: translateY(0); }
.modal-close-btn { position: absolute; top: 10px; right: 15px; background: none; border: none; font-size: 2rem; color: var(--text-muted); cursor: pointer; }
.video-modal-content { max-width: 900px; padding: 1rem; background: black; }
#video-player { width: 100%; height: auto; aspect-ratio: 16/9; border-radius: 8px; }

#main-footer { background: var(--dark-color); color: #D1D5DB; padding: 2rem 0; }
.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1.5rem; }
.footer-left, .footer-center, .footer-right { flex: 1; text-align: center; }
.footer-left { text-align: left; }
.footer-right { text-align: right; }
.footer-contact-link { color: #D1D5DB; font-weight: 500; transition: color 0.3s; }
.footer-contact-link:hover { color: var(--secondary-color); }
.footer-contact-link i { margin-right: 0.5rem; }
.social-icon { color: #D1D5DB; font-size: 1.5rem; margin-left: 1.2rem; transition: color 0.3s, transform 0.3s; }
.social-icon:hover { color: white; transform: translateY(-3px); }

/* --- 10. Detail & Payment Page Styles --- */
.header-static { position: static; background-color: rgba(17, 24, 39, 0.8); backdrop-filter: blur(10px); border-bottom-color: rgba(255, 255, 255, 0.1); }
#detail-hero { padding: 5rem 0; text-align: center; background-size: cover; background-position: center; position: relative; }
#detail-hero::before { content: ''; position: absolute; top:0; left:0; width: 100%; height: 100%; background: rgba(17, 24, 39, 0.7); }
#detail-hero h1 { color: white; position: relative; }
#detail-content { padding: 4rem 0; }
.detail-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 3rem; align-items: flex-start; }
.detail-main-content h2 { border-bottom: 2px solid var(--primary-color); padding-bottom: 0.5rem; margin-bottom: 1.5rem; font-size: 1.8rem; }
.detail-sidebar { position: sticky; top: 120px; display: flex; flex-direction: column; gap: 1.5rem; }
.info-card { background: var(--bg-alt-color); border: 1px solid var(--border-color); padding: 1.5rem; border-radius: 12px; }
.info-card h3 { font-size: 1.2rem; display: flex; align-items: center; gap: 0.75rem; }
.info-card i { color: var(--primary-color); }
.model-downloads { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--border-color); }
.download-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.download-btn { display: flex; align-items: center; gap: 1rem; padding: 1rem; background: var(--bg-color); border: 1px solid var(--border-color); border-radius: 8px; transition: all 0.3s; }
.download-btn:hover { background: var(--bg-alt-color); transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: var(--primary-color); }
.download-btn i { font-size: 1.8rem; flex-shrink: 0; color: var(--secondary-color); }
.download-btn span { font-weight: 600; font-size: 0.9rem; color: var(--text-color); }
.nav-actions-detail { display: flex; gap: 1rem; align-items: center; }

#payment-page { padding: 4rem 0; }
.payment-flow-visual { display: flex; justify-content: center; align-items: flex-start; gap: 1rem; margin-bottom: 4rem; }
.flow-step-visual { display: flex; flex-direction: column; align-items: center; text-align: center; font-weight: 600; color: var(--text-muted); position: relative; flex: 1; max-width: 180px; }
.flow-step-visual .flow-icon { width: 70px; height: 70px; border-radius: 50%; background: var(--bg-alt-color); border: 2px solid var(--border-color); display: flex; align-items: center; justify-content: center; font-size: 2rem; color: var(--primary-color); margin-bottom: 0.75rem; transition: all 0.3s ease; }
.flow-step-visual.active .flow-icon { transform: scale(1.1); }
.flow-step-visual:hover .flow-icon { transform: translateY(-5px) scale(1.1); box-shadow: var(--shadow-md); }
.flow-step-visual:not(:last-child)::after { content: ''; position: absolute; top: 35px; left: calc(50% + 45px); width: calc(100% - 80px); height: 2px; background: repeating-linear-gradient(90deg, var(--border-color), var(--border-color) 4px, transparent 4px, transparent 8px); z-index: -1; }
.payment-main-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 3rem; align-items: center; }
.qr-code-wrapper { position: relative; padding: 1.5rem; background: white; border-radius: 12px; box-shadow: var(--shadow-lg); text-align: center; overflow: hidden; }
.qr-code-wrapper::before { content: ''; position: absolute; top: 50%; left: 50%; width: 200%; height: 200%; background: conic-gradient(from 0deg, var(--primary-color), var(--secondary-color), var(--accent-color), var(--primary-color)); animation: rotate-gradient 4s linear infinite; }
.qr-code-wrapper::after { content: ''; position: absolute; inset: 6px; background: white; border-radius: 10px; }
.qr-code-wrapper img { max-width: 100%; height: auto; position: relative; z-index: 2; }
@keyframes rotate-gradient { 0% { transform: translate(-50%, -50%) rotate(0deg); } 100% { transform: translate(-50%, -50%) rotate(360deg); } }
.payment-instructions h3 { margin-top: 0; }
.payment-instructions ol { padding-left: 1.5rem; margin: 1.5rem 0; }
.payment-instructions li { margin-bottom: 1rem; }
#whatsapp-share-btn { margin-top: 1.5rem; width: 100%; justify-content: center; animation: pulse-whatsapp 2s infinite ease-in-out; }
@keyframes pulse-whatsapp { 0% { transform: scale(1); } 50% { transform: scale(1.05); } 100% { transform: scale(1); } }

/* --- 11. Animations & Utilities --- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal.active { opacity: 1; transform: translateY(0); }

/* --- 12. Responsive Design --- */
@media (max-width: 1200px) { .stats-container { grid-template-columns: repeat(3, 1fr); gap: 2rem; } }
@media (max-width: 1024px) { #nav-menu { gap: 0.2rem; } .hero-content, .about-grid, .deliverables-grid { grid-template-columns: 1fr; text-align: center; } .hero-text, .deliverables-text { order: 2; } .hero-visual, .deliverables-visual { order: 1; margin-bottom: 2rem; } .hero-subtitle { margin-left: auto; margin-right: auto; } .hero-cta { justify-content: center; } }
@media (max-width: 900px) {
    h1 { font-size: 2.5rem; } h2 { font-size: 2.2rem; } section { padding: 4rem 0; } 
    .nav-actions { display: none; } .menu-toggle { display: block; } 
    #main-header, #main-header.scrolled { background-color: rgba(17, 24, 39, 0.95); backdrop-filter: blur(10px); border-bottom-color: rgba(255, 255, 255, 0.1); }
    #main-header .nav-link, #main-header.scrolled .nav-link { color: #E5E7EB; }
    #nav-menu { position: absolute; top: 80px; left: 0; width: 100%; background: var(--dark-color); flex-direction: column; text-align: left; box-shadow: var(--shadow-lg); padding: 1rem 0; border-top: 1px solid rgba(255,255,255,0.1); max-height: 0; overflow-y: auto; transition: max-height 0.4s ease-out; } 
    #nav-menu.active { max-height: 80vh; } 
    #nav-menu li { width: 100%; padding: 0 1rem; }
    .dropdown > .nav-link { justify-content: space-between; width: 100%; }
    .dropdown .dropdown-content { display: block; position: static; transform: none; background: transparent; backdrop-filter: none; border: none; border-radius: 0; box-shadow: none; padding: 0.5rem 0 0.5rem 1.5rem; margin-top: 0; opacity: 1; visibility: visible; max-height: 0; overflow: hidden; transition: max-height 0.4s ease-out; }
    .dropdown.active > .nav-link i { transform: rotate(180deg); }
    .dropdown.active .dropdown-content { max-height: 500px; } 
    .stats-container { grid-template-columns: repeat(2, 1fr); gap: 2.5rem; } 
    .faq-columns, .detail-grid, .procedure-grid, .video-grid { grid-template-columns: 1fr; } 
    .detail-sidebar { position: static; margin-top: 2rem; } .download-grid { grid-template-columns: 1fr; } 
    .nav-actions-detail { display: none; } 
    .footer-content { flex-direction: column; text-align: center; } 
    .footer-left, .footer-center, .footer-right { text-align: center; width: 100%; } 
    .social-icon { margin: 0 0.75rem; } 
    .payment-flow-visual { flex-direction: column; gap: 2rem; align-items: center; } 
    .flow-step-visual:not(:last-child)::after { top: calc(50% + 45px); left: 50%; transform: translateX(-50%); width: 2px; height: calc(100% - 80px); } 
    .payment-main-grid { grid-template-columns: 1fr; } 
}
@media (max-width: 500px) { .stats-container { grid-template-columns: 1fr; } }