/* ===== AquaOxy Global Styles ===== */
/* Brand: Deep Sea Blue #1A5276 | Energy Orange #E67E22 */
/* Fonts: Montserrat (headings) + Open Sans (body) */

:root {
  --primary: #1A5276;
  --primary-dark: #0F3A54;
  --primary-light: #2980B9;
  --accent: #E67E22;
  --accent-dark: #D35400;
  --accent-light: #F39C12;
  --text-dark: #2C3E50;
  --text-light: #7F8C8D;
  --text-white: #FFFFFF;
  --bg-white: #FFFFFF;
  --bg-light: #F8FAFB;
  --bg-dark: #0F3A54;
  --border: #E0E6ED;
  --shadow: 0 4px 20px rgba(26,82,118,0.08);
  --shadow-hover: 0 8px 30px rgba(26,82,118,0.15);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--text-dark);
  line-height: 1.7;
  background: var(--bg-white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary);
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.2rem; }

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }

img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: var(--radius);
  font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 0.95rem;
  cursor: pointer; border: none; transition: var(--transition);
  text-decoration: none;
}
.btn-primary { background: var(--accent); color: var(--text-white); }
.btn-primary:hover { background: var(--accent-dark); color: var(--text-white); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-secondary { background: transparent; color: var(--text-white); border: 2px solid var(--text-white); }
.btn-secondary:hover { background: var(--text-white); color: var(--primary); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--text-white); }
.btn-sm { padding: 10px 20px; font-size: 0.85rem; }

/* ===== Header & Navigation ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: var(--bg-white); box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: var(--transition);
}
.header-top {
  background: var(--primary-dark); color: var(--text-white);
  padding: 8px 0; font-size: 0.82rem;
}
.header-top .container { display: flex; justify-content: space-between; align-items: center; }
.header-top a { color: var(--text-white); opacity: 0.9; }
.header-top a:hover { opacity: 1; color: var(--accent-light); }

.nav-main { padding: 12px 0; }
.nav-main .container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { width: 42px; height: 42px; background: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.logo-icon svg { width: 24px; height: 24px; fill: var(--text-white); }
.logo-text { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.5rem; color: var(--primary); }
.logo-text span { color: var(--accent); }

.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { font-weight: 600; font-size: 0.92rem; color: var(--text-dark); padding: 8px 0; position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--accent); transition: var(--transition); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-cta .btn { padding: 10px 24px; }

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-toggle span { display: block; width: 24px; height: 2px; background: var(--text-dark); margin: 6px 0; transition: var(--transition); }

/* ===== Hero Section ===== */
.hero {
  padding: 160px 0 100px; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  color: var(--text-white);
}
.hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.03)" d="M0,96L48,112C96,128,192,160,288,176C384,192,480,192,576,170.7C672,149,768,107,864,112C960,117,1056,171,1152,186.7C1248,203,1344,181,1392,170.7L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"/></svg>') no-repeat bottom;
  background-size: cover;
}
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-content h1 { font-size: 3rem; margin-bottom: 20px; color: var(--text-white); }
.hero-content h1 span { color: var(--accent-light); }
.hero-content p { font-size: 1.15rem; opacity: 0.9; margin-bottom: 32px; line-height: 1.8; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 48px; }
.hero-stat { text-align: center; }
.hero-stat-number { font-family: 'Montserrat', sans-serif; font-size: 2.2rem; font-weight: 800; color: var(--accent-light); }
.hero-stat-label { font-size: 0.85rem; opacity: 0.8; margin-top: 4px; }
.hero-image { position: relative; }
.hero-image-placeholder {
  width: 100%; aspect-ratio: 4/3; background: rgba(255,255,255,0.08);
  border-radius: var(--radius-lg); border: 1px solid rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: rgba(255,255,255,0.6); text-align: center; padding: 40px;
}

/* ===== Hero Carousel ===== */
.hero-carousel { position: relative; }
.hero-slides { position: relative; overflow: hidden; }
.hero-slide {
  display: none; opacity: 0;
  transition: opacity 0.8s ease-in-out;
}
.hero-slide.active {
  display: block; opacity: 1;
}
.hero-slide .container {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
  padding-top: 60px; padding-bottom: 60px;
}
.carousel-controls {
  position: absolute; top: 50%; left: 0; right: 0;
  display: flex; justify-content: space-between;
  padding: 0 20px; z-index: 10;
  transform: translateY(-50%);
  pointer-events: none;
}
.carousel-btn {
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.15); border: 2px solid rgba(255,255,255,0.4);
  color: white; font-size: 1.4rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition); pointer-events: all;
  backdrop-filter: blur(4px);
}
.carousel-btn:hover {
  background: rgba(255,255,255,0.3); border-color: rgba(255,255,255,0.8);
  transform: scale(1.1);
}
.carousel-dots {
  display: flex; justify-content: center; gap: 12px;
  padding: 20px 0 10px; position: relative; z-index: 10;
}
.carousel-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: rgba(255,255,255,0.3); cursor: pointer;
  transition: var(--transition); border: 2px solid rgba(255,255,255,0.5);
}
.carousel-dot.active {
  background: var(--accent); border-color: var(--accent);
  width: 36px; border-radius: 6px;
}
.hero-stats-bar {
  background: rgba(0,0,0,0.15); padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

/* ===== Section Styles ===== */
.section { padding: 80px 0; }
.section-light { background: var(--bg-light); }
.section-dark { background: var(--primary-dark); color: var(--text-white); }
.section-dark h2, .section-dark h3 { color: var(--text-white); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { color: var(--text-light); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }
.section-tag { display: inline-block; background: rgba(230,126,34,0.1); color: var(--accent); font-weight: 600; font-size: 0.82rem; padding: 6px 16px; border-radius: 20px; margin-bottom: 12px; text-transform: uppercase; letter-spacing: 1px; }

/* ===== Product Cards ===== */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.product-card {
  background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--border);
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.product-card-image {
  height: 220px; background: linear-gradient(135deg, #EBF5FB, #D6EAF8);
  display: flex; align-items: center; justify-content: center; position: relative;
  overflow: hidden;
}
.product-card-image::after {
  content: attr(data-label); position: absolute; top: 12px; right: 12px;
  background: var(--accent); color: white; font-size: 0.7rem; font-weight: 700;
  padding: 4px 10px; border-radius: 12px; text-transform: uppercase;
}
.product-card-body { padding: 24px; }
.product-card-body h3 { font-size: 1.15rem; margin-bottom: 10px; }
.product-card-body p { color: var(--text-light); font-size: 0.9rem; margin-bottom: 16px; }
.product-specs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.product-spec { background: var(--bg-light); padding: 4px 10px; border-radius: 4px; font-size: 0.78rem; color: var(--text-light); }
.product-card-footer { display: flex; justify-content: space-between; align-items: center; padding-top: 16px; border-top: 1px solid var(--border); }
.product-price { font-family: 'Montserrat', sans-serif; font-weight: 700; color: var(--accent); font-size: 1.1rem; }

/* ===== Why Us / Features ===== */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.feature-card { text-align: center; padding: 40px 24px; border-radius: var(--radius-lg); transition: var(--transition); }
.feature-card:hover { background: var(--bg-white); box-shadow: var(--shadow); }
.feature-icon {
  width: 72px; height: 72px; margin: 0 auto 20px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(26,82,118,0.1), rgba(41,128,185,0.1));
  display: flex; align-items: center; justify-content: center;
}
.feature-icon svg { width: 32px; height: 32px; stroke: var(--primary); fill: none; stroke-width: 1.5; }
.feature-card h4 { margin-bottom: 10px; color: var(--primary); }
.feature-card p { font-size: 0.9rem; color: var(--text-light); }

/* ===== Stats Bar ===== */
.stats-bar { background: var(--primary); padding: 50px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat-item h3 { font-size: 2.5rem; color: var(--accent-light); margin-bottom: 8px; }
.stat-item p { color: rgba(255,255,255,0.8); font-size: 0.95rem; }

/* ===== Case Studies ===== */
.cases-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.case-card {
  display: grid; grid-template-columns: 200px 1fr; overflow: hidden;
  border-radius: var(--radius-lg); border: 1px solid var(--border);
  transition: var(--transition); background: var(--bg-white);
}
.case-card:hover { box-shadow: var(--shadow-hover); }
.case-card-image { 
  background: linear-gradient(135deg, var(--primary), var(--primary-light)); 
  display: flex; align-items: center; justify-content: center; 
  overflow: hidden; position: relative;
}
.case-card-image img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
}
.case-card-image .case-overlay {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.6));
  padding: 16px 12px 12px;
}
.case-card-image .case-overlay span {
  color: white; font-size: 0.85rem; font-weight: 600;
}
.case-card-body { padding: 24px; }
.case-card-body h4 { margin-bottom: 8px; }
.case-card-body p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 12px; }
.case-tag { display: inline-block; background: rgba(26,82,118,0.08); color: var(--primary); padding: 3px 10px; border-radius: 4px; font-size: 0.75rem; font-weight: 600; margin-right: 6px; }

/* ===== Testimonials ===== */
.testimonials-slider { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.testimonial-card {
  background: var(--bg-white); padding: 32px; border-radius: var(--radius-lg);
  box-shadow: var(--shadow); position: relative;
}
.testimonial-card::before { content: '\201C'; position: absolute; top: 16px; left: 24px; font-size: 4rem; color: rgba(26,82,118,0.08); font-family: serif; }
.testimonial-text { font-style: italic; color: var(--text-light); margin-bottom: 20px; font-size: 0.95rem; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--primary-light); display: flex; align-items: center; justify-content: center; color: white; font-weight: 700; }
.testimonial-info h5 { font-size: 0.9rem; color: var(--text-dark); }
.testimonial-info span { font-size: 0.8rem; color: var(--text-light); }

/* ===== CTA Section ===== */
.cta-section {
  padding: 80px 0; text-align: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--text-white);
}
.cta-section h2 { color: var(--text-white); margin-bottom: 16px; }
.cta-section p { opacity: 0.9; margin-bottom: 32px; font-size: 1.1rem; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; }

/* ===== Footer ===== */
.footer { background: var(--bg-dark); color: rgba(255,255,255,0.8); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { font-size: 0.9rem; margin-top: 16px; line-height: 1.8; opacity: 0.8; }
.footer h4 { color: var(--text-white); font-size: 1rem; margin-bottom: 20px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.footer-links a:hover { color: var(--accent-light); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; list-style: none; font-size: 0.9rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem; opacity: 0.7; }
.footer-social { display: flex; gap: 12px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center; color: white; transition: var(--transition); }
.footer-social a:hover { background: var(--accent); }

/* ===== About Page ===== */
.page-hero { padding: 140px 0 60px; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: var(--text-white); text-align: center; }
.page-hero h1 { color: var(--text-white); margin-bottom: 16px; }
.page-hero p { opacity: 0.85; font-size: 1.1rem; max-width: 600px; margin: 0 auto; }
.breadcrumb { display: flex; gap: 8px; justify-content: center; margin-top: 20px; font-size: 0.85rem; opacity: 0.7; }
.breadcrumb a { color: rgba(255,255,255,0.8); }

.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-intro-text h2 { margin-bottom: 20px; }
.about-intro-text p { margin-bottom: 16px; color: var(--text-light); }
.about-image-placeholder { aspect-ratio: 4/3; background: linear-gradient(135deg, #EBF5FB, #D6EAF8); border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; color: var(--text-light); }

.timeline { position: relative; padding: 40px 0; }
.timeline::before { content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: var(--border); transform: translateX(-50%); }
.timeline-item { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-bottom: 40px; position: relative; }
.timeline-item::before { content: ''; position: absolute; left: 50%; top: 20px; width: 16px; height: 16px; background: var(--accent); border-radius: 50%; transform: translateX(-50%); border: 3px solid var(--bg-white); }

.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cert-card { background: var(--bg-white); padding: 30px; border-radius: var(--radius); text-align: center; border: 1px solid var(--border); transition: var(--transition); }
.cert-card:hover { box-shadow: var(--shadow); }
.cert-card h4 { margin-top: 12px; font-size: 1rem; }
.cert-card p { font-size: 0.82rem; color: var(--text-light); margin-top: 6px; }

/* ===== Solutions Page ===== */
.solutions-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.solution-card {
  padding: 40px; border-radius: var(--radius-lg); border: 1px solid var(--border);
  transition: var(--transition); background: var(--bg-white);
}
.solution-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
.solution-card h3 { margin-bottom: 12px; }
.solution-card p { color: var(--text-light); margin-bottom: 16px; font-size: 0.92rem; }
.solution-features { list-style: none; margin-bottom: 20px; }
.solution-features li { padding: 6px 0; font-size: 0.88rem; color: var(--text-light); padding-left: 20px; position: relative; }
.solution-features li::before { content: '\2713'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* ===== Contact Page ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-form { background: var(--bg-white); padding: 40px; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; color: var(--text-dark); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius);
  font-family: 'Open Sans', sans-serif; font-size: 0.92rem; transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--primary-light); outline: none; box-shadow: 0 0 0 3px rgba(26,82,118,0.1); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.contact-info-cards { display: grid; gap: 20px; }
.contact-info-card { display: flex; gap: 16px; padding: 24px; background: var(--bg-light); border-radius: var(--radius); transition: var(--transition); }
.contact-info-card:hover { box-shadow: var(--shadow); background: var(--bg-white); }
.contact-info-card-icon { width: 48px; height: 48px; background: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-info-card-icon svg { width: 20px; height: 20px; stroke: white; fill: none; }
.contact-info-card h4 { font-size: 1rem; margin-bottom: 4px; }
.contact-info-card p { font-size: 0.88rem; color: var(--text-light); }

/* ===== News Page ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.news-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); }
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.news-card-image { height: 180px; background: linear-gradient(135deg, #EBF5FB, #D6EAF8); display: flex; align-items: center; justify-content: center; }
.news-card-body { padding: 24px; }
.news-card-date { font-size: 0.8rem; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.news-card-body h3 { font-size: 1.05rem; margin-bottom: 10px; }
.news-card-body p { font-size: 0.88rem; color: var(--text-light); }

/* ===== WhatsApp Float ===== */
.whatsapp-float {
  position: fixed; bottom: 30px; right: 30px; z-index: 999;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25D366; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(37,211,102,0.4); transition: var(--transition);
  cursor: pointer;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 20px rgba(37,211,102,0.5); }
.whatsapp-float svg { width: 28px; height: 28px; fill: white; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero .container, .hero-slide .container { grid-template-columns: 1fr; text-align: center; }
  .hero-image { display: none; }
  .hero-stats { justify-content: center; }
  .hero-buttons { justify-content: center; }
  .carousel-controls { display: none; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .about-intro { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.7rem; }
  .nav-links { display: none; }
  .mobile-toggle { display: block; }
  .hero { padding: 120px 0 60px; }
  .hero-content h1 { font-size: 2.2rem; }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .products-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: 1fr; }
  .case-card { grid-template-columns: 1fr; }
  .testimonials-slider { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 50px 0; }
}