/* ============================================
   AL AIR DUCT CLEANING MIAMI - MAIN STYLESHEET
   ============================================ */

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

:root {
  --blue: #1e40af;
  --blue-dark: #1e3a8a;
  --blue-light: #dbeafe;
  --orange: #f97316;
  --orange-dark: #ea6e0a;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-900: #0f172a;
  --white: #ffffff;
  --radius: 8px;
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif; color: var(--gray-700); line-height: 1.6; font-size: 16px; }
img { max-width: 100%; height: auto; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--orange); }
ul { list-style: none; }

/* CONTAINER */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-alt { background: var(--gray-50); }

/* TYPOGRAPHY */
h1, h2, h3, h4 { color: var(--gray-900); line-height: 1.3; font-weight: 700; }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1rem; }
.section-title { text-align: center; margin-bottom: 1rem; }
.section-subtitle { text-align: center; color: var(--gray-600); max-width: 700px; margin: 0 auto 3rem; font-size: 1.1rem; }
.text-orange { color: var(--orange); }
.text-blue { color: var(--blue); }

/* BUTTONS */
.btn { display: inline-block; padding: 14px 32px; border-radius: var(--radius); font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.2s; border: 2px solid transparent; text-align: center; }
.btn-primary { background: var(--orange); color: var(--white); border-color: var(--orange); }
.btn-primary:hover { background: var(--orange-dark); color: var(--white); border-color: var(--orange-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-secondary { background: transparent; color: var(--white); border-color: var(--white); }
.btn-secondary:hover { background: var(--white); color: var(--blue); }
.btn-outline { background: transparent; color: var(--blue); border-color: var(--blue); }
.btn-outline:hover { background: var(--blue); color: var(--white); }
.btn-lg { padding: 18px 40px; font-size: 1.1rem; }

/* TOP BAR */
.top-bar { background: var(--blue-dark); color: var(--white); padding: 8px 0; font-size: 0.875rem; }
.top-bar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.top-bar a { color: var(--white); }
.top-bar a:hover { color: var(--orange); }
.top-bar-item { display: flex; align-items: center; gap: 6px; }

/* HEADER */
header { background: var(--white); box-shadow: 0 2px 10px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo img { display: block; }
.logo-icon { width: 50px; height: 50px; background: var(--blue); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-size: 1.5rem; }
.logo-text { line-height: 1.2; }
.logo-text strong { display: block; color: var(--blue); font-size: 1.1rem; }
.logo-text span { font-size: 0.8rem; color: var(--gray-600); }

/* NAV */
nav ul { display: flex; gap: 8px; align-items: center; }
nav ul li a { padding: 8px 16px; border-radius: var(--radius); color: var(--gray-700); font-weight: 500; transition: all 0.2s; }
nav ul li a:hover, nav ul li a.active { background: var(--blue-light); color: var(--blue); }
.nav-cta { background: var(--orange) !important; color: var(--white) !important; border-radius: var(--radius) !important; }
.nav-cta:hover { background: var(--orange-dark) !important; color: var(--white) !important; }

/* MOBILE MENU */
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.menu-toggle span { display: block; width: 25px; height: 3px; background: var(--gray-700); margin: 5px 0; border-radius: 3px; transition: all 0.3s; }

/* HERO */
.hero { background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 60%, #2563eb 100%); color: var(--white); padding: 100px 0 80px; position: relative; overflow: hidden; }
.hero::after { content: ''; position: absolute; right: -100px; top: -100px; width: 600px; height: 600px; background: rgba(255,255,255,0.05); border-radius: 50%; }
.hero-content { max-width: 700px; position: relative; z-index: 1; }
.hero-badge { display: inline-block; background: rgba(255,255,255,0.2); border: 1px solid rgba(255,255,255,0.3); color: white; padding: 6px 16px; border-radius: 50px; font-size: 0.875rem; font-weight: 600; margin-bottom: 1.5rem; letter-spacing: 0.05em; }
.hero h1 { color: var(--white); margin-bottom: 1.5rem; }
.hero h1 span { color: #fbbf24; }
.hero p { font-size: 1.15rem; opacity: 0.9; margin-bottom: 2rem; max-width: 600px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 3rem; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,0.2); }
.hero-stat strong { display: block; font-size: 1.75rem; font-weight: 800; color: #fbbf24; }
.hero-stat span { font-size: 0.875rem; opacity: 0.85; }

/* TRUST BAR */
.trust-bar { background: var(--orange); color: var(--white); padding: 20px 0; }
.trust-bar .container { display: flex; justify-content: center; flex-wrap: wrap; gap: 30px; }
.trust-item { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.95rem; }
.trust-icon { font-size: 1.3rem; }

/* SERVICES GRID */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.service-card { background: var(--white); border-radius: 12px; padding: 32px 28px; box-shadow: var(--shadow); border: 1px solid var(--gray-200); transition: all 0.3s; }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--blue); }
.service-icon { width: 64px; height: 64px; background: var(--blue-light); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 2rem; margin-bottom: 1.25rem; }
.service-card h3 { margin-bottom: 0.75rem; }
.service-card p { color: var(--gray-600); margin-bottom: 1.25rem; font-size: 0.95rem; }
.service-card a.read-more { color: var(--blue); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.service-card a.read-more:hover { color: var(--orange); }

/* WHY CHOOSE US */
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.why-card { background: var(--white); border-radius: 12px; padding: 28px; box-shadow: var(--shadow); display: flex; gap: 16px; align-items: flex-start; }
.why-icon { width: 50px; height: 50px; background: var(--blue); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; flex-shrink: 0; }
.why-card h4 { margin-bottom: 0.5rem; }
.why-card p { color: var(--gray-600); font-size: 0.9rem; margin: 0; }

/* PROCESS */
.process-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; counter-reset: step; }
.process-step { text-align: center; padding: 24px; position: relative; }
.step-number { width: 60px; height: 60px; background: var(--blue); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 800; margin: 0 auto 1rem; }
.process-step h4 { margin-bottom: 0.5rem; }
.process-step p { color: var(--gray-600); font-size: 0.9rem; margin: 0; }

/* TESTIMONIALS */
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.testimonial-card { background: var(--white); border-radius: 12px; padding: 28px; box-shadow: var(--shadow); border-left: 4px solid var(--orange); }
.stars { color: #f59e0b; font-size: 1.1rem; margin-bottom: 0.75rem; }
.testimonial-text { color: var(--gray-700); margin-bottom: 1rem; font-style: italic; }
.testimonial-author strong { color: var(--gray-900); }
.testimonial-author span { color: var(--gray-600); font-size: 0.875rem; }

/* SERVICE AREAS */
.areas-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.area-tag { background: var(--white); border: 2px solid var(--blue-light); border-radius: 8px; padding: 10px 16px; text-align: center; font-weight: 600; color: var(--blue); font-size: 0.9rem; transition: all 0.2s; }
.area-tag:hover { background: var(--blue); color: white; border-color: var(--blue); }

/* CTA SECTION */
.cta-section { background: linear-gradient(135deg, var(--blue-dark), var(--blue)); color: white; padding: 80px 0; text-align: center; }
.cta-section h2 { color: white; margin-bottom: 1rem; }
.cta-section p { opacity: 0.9; font-size: 1.1rem; max-width: 600px; margin: 0 auto 2rem; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* EMERGENCY BANNER */
.emergency-banner { background: #dc2626; color: white; padding: 12px 0; text-align: center; font-weight: 600; }
.emergency-banner a { color: #fbbf24; font-weight: 800; }

/* FAQ SECTION */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--white); border-radius: var(--radius); margin-bottom: 12px; box-shadow: var(--shadow); overflow: hidden; }
.faq-question { padding: 20px 24px; font-weight: 600; color: var(--gray-900); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-answer { padding: 0 24px 20px; color: var(--gray-600); display: none; }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-question { color: var(--blue); }

/* BREADCRUMB */
.breadcrumb { background: var(--gray-100); padding: 12px 0; }
.breadcrumb ol { display: flex; gap: 8px; flex-wrap: wrap; font-size: 0.875rem; color: var(--gray-600); }
.breadcrumb ol li::after { content: '/'; margin-left: 8px; }
.breadcrumb ol li:last-child::after { content: ''; }
.breadcrumb ol li a { color: var(--blue); }

/* PAGE HERO */
.page-hero { background: linear-gradient(135deg, var(--blue-dark), var(--blue)); color: white; padding: 60px 0; }
.page-hero h1 { color: white; margin-bottom: 1rem; }
.page-hero p { opacity: 0.9; font-size: 1.1rem; max-width: 700px; }

/* CONTENT SECTIONS */
.content-section { max-width: 900px; margin: 0 auto; }
.content-section h2 { margin: 2rem 0 1rem; }
.content-section h3 { margin: 1.5rem 0 0.75rem; }
.content-section ul { padding-left: 20px; margin-bottom: 1rem; }
.content-section ul li { list-style: disc; color: var(--gray-700); margin-bottom: 0.5rem; }
.content-section ol { padding-left: 20px; margin-bottom: 1rem; }
.content-section ol li { list-style: decimal; color: var(--gray-700); margin-bottom: 0.5rem; }

/* PAGE LAYOUT WITH SIDEBAR */
.page-with-sidebar { display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: start; }
.sidebar { position: sticky; top: 100px; }
.sidebar-card { background: var(--white); border-radius: 12px; padding: 28px; box-shadow: var(--shadow); margin-bottom: 24px; }
.sidebar-card h3 { color: var(--blue); margin-bottom: 1rem; font-size: 1.1rem; }
.sidebar-card ul li { padding: 8px 0; border-bottom: 1px solid var(--gray-200); }
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul li a { color: var(--gray-700); font-size: 0.95rem; }
.sidebar-card ul li a:hover { color: var(--blue); }
.contact-info-item { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.contact-info-icon { color: var(--orange); font-size: 1.3rem; }

/* BLOG GRID */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px; }
.blog-card { background: var(--white); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); transition: all 0.3s; }
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.blog-card-image { height: 200px; background: linear-gradient(135deg, var(--blue), #3b82f6); display: flex; align-items: center; justify-content: center; font-size: 3rem; }
.blog-card-content { padding: 24px; }
.blog-meta { font-size: 0.8rem; color: var(--gray-600); margin-bottom: 0.5rem; }
.blog-card h3 { margin-bottom: 0.75rem; font-size: 1.1rem; }
.blog-card p { color: var(--gray-600); font-size: 0.9rem; margin-bottom: 1rem; }
.blog-tag { display: inline-block; background: var(--blue-light); color: var(--blue); padding: 3px 10px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; margin-bottom: 0.5rem; }

/* CONTACT FORM */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--gray-700); font-size: 0.9rem; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; border: 2px solid var(--gray-200); border-radius: var(--radius); font-size: 1rem; transition: border-color 0.2s; font-family: inherit; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--blue); }
.form-group textarea { height: 140px; resize: vertical; }

/* ABOUT PAGE */
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.team-card { background: var(--white); border-radius: 12px; padding: 28px; text-align: center; box-shadow: var(--shadow); }
.team-avatar { width: 80px; height: 80px; background: var(--blue); border-radius: 50%; margin: 0 auto 1rem; display: flex; align-items: center; justify-content: center; color: white; font-size: 2rem; }
.team-card h4 { margin-bottom: 0.25rem; }
.team-card .role { color: var(--orange); font-size: 0.875rem; font-weight: 600; margin-bottom: 0.75rem; }
.team-card p { color: var(--gray-600); font-size: 0.875rem; margin: 0; }

/* STATS SECTION */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; text-align: center; }
.stat-card { background: var(--white); border-radius: 12px; padding: 32px; box-shadow: var(--shadow); }
.stat-number { font-size: 2.5rem; font-weight: 800; color: var(--blue); display: block; }
.stat-label { color: var(--gray-600); font-size: 0.9rem; }

/* INFO BOX */
.info-box { background: var(--blue-light); border-left: 4px solid var(--blue); border-radius: var(--radius); padding: 20px 24px; margin: 2rem 0; }
.info-box.warning { background: #fef3c7; border-color: #f59e0b; }
.info-box.success { background: #d1fae5; border-color: #059669; }

/* CHECKLIST */
.checklist li { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; color: var(--gray-700); }
.checklist li::before { content: '✓'; color: #059669; font-weight: 800; flex-shrink: 0; margin-top: 2px; }

/* FOOTER */
footer { background: var(--gray-900); color: #94a3b8; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { margin: 1rem 0; font-size: 0.9rem; }
.footer-logo { color: white; font-size: 1.2rem; font-weight: 800; }
.footer-logo span { color: var(--orange); }
.footer-heading { color: white; font-size: 0.95rem; font-weight: 700; margin-bottom: 1rem; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-links li { margin-bottom: 8px; }
.footer-links li a { color: #94a3b8; font-size: 0.9rem; transition: color 0.2s; }
.footer-links li a:hover { color: var(--orange); }
.footer-contact-item { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 10px; font-size: 0.9rem; }
.footer-contact-item .icon { color: var(--orange); flex-shrink: 0; }
.footer-bottom { border-top: 1px solid #1e293b; padding: 20px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.8rem; }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: #94a3b8; }
.footer-bottom-links a:hover { color: var(--orange); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .page-with-sidebar { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: white; box-shadow: var(--shadow); padding: 20px; }
  nav.open { display: block; }
  nav ul { flex-direction: column; gap: 4px; }
  nav ul li a { display: block; }
  .menu-toggle { display: block; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .top-bar .container { justify-content: center; }
  .header-inner { position: relative; }
}

@media (max-width: 480px) {
  .hero { padding: 60px 0 50px; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { text-align: center; }
  .cta-buttons { flex-direction: column; align-items: center; }
}