/* ===== OCUSIGHT PHARMA - Premium Corporate CSS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@400;500;600;700;800;900&display=swap');

:root {
  --navy-900: #060d1a;
  --navy-800: #0a1628;
  --navy-700: #0f1f3a;
  --navy-600: #162a4a;
  --navy-500: #1e3a5f;
  --navy-400: #2a4a75;
  --navy-300: #3a5f8a;
  --navy-200: #5a7a9f;
  --navy-100: #8a9fbf;

  --silver-50: #f8f9fb;
  --silver-100: #f0f2f5;
  --silver-200: #e2e6ed;
  --silver-300: #cdd4df;
  --silver-400: #b0bbc9;
  --silver-500: #8f9dad;
  --silver-600: #6b7a8a;

  --gold-300: #d4b96a;
  --gold-400: #c5a55a;
  --gold-500: #b8944a;

  --white: #ffffff;
  --black: #000000;

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --shadow-sm: 0 2px 8px rgba(6, 13, 26, 0.06);
  --shadow-md: 0 8px 30px rgba(6, 13, 26, 0.08);
  --shadow-lg: 0 20px 60px rgba(6, 13, 26, 0.12);
  --shadow-xl: 0 30px 80px rgba(6, 13, 26, 0.16);
  --shadow-glow: 0 0 40px rgba(10, 22, 40, 0.15);
  --shadow-gold: 0 8px 32px rgba(196, 165, 90, 0.25);

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --container: 1280px;
  --nav-height: 80px;
}

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

html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: var(--font-body);
  color: var(--navy-900);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.25;
  font-weight: 700;
}

/* ===== CONTAINER ===== */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== PRELOADER ===== */
.preloader {
  position: fixed; inset: 0; z-index: 99999;
  background: var(--navy-900);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-logo { font-family: var(--font-heading); font-size: 2rem; font-weight: 800; color: var(--white); margin-bottom: 24px; letter-spacing: 4px; }
.preloader-logo span { color: var(--gold-400); }
.preloader-bar { width: 200px; height: 3px; background: rgba(255,255,255,0.1); border-radius: 2px; overflow: hidden; }
.preloader-bar-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--gold-400), var(--navy-300)); border-radius: 2px; animation: preloadBar 1.5s ease forwards; }
@keyframes preloadBar { 0% { width: 0; } 100% { width: 100%; } }

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  padding: 0 24px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  transition: var(--transition);
  height: var(--nav-height);
}
.navbar.scrolled { background: rgba(255,255,255,0.95); box-shadow: 0 4px 30px rgba(6,13,26,0.08); }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.nav-logo { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800; color: var(--navy-800); letter-spacing: 1px; }
.nav-logo span { color: var(--gold-400); }
.nav-logo .tagline { font-family: var(--font-body); font-size: 0.65rem; font-weight: 400; color: var(--silver-500); display: block; letter-spacing: 3px; text-transform: uppercase; margin-top: -2px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 0.85rem; font-weight: 500; color: var(--navy-700);
  position: relative; padding: 4px 0; letter-spacing: 0.3px;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
  background: linear-gradient(90deg, var(--gold-400), var(--navy-400));
  transition: var(--transition); border-radius: 1px;
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--navy-800); font-weight: 600; }
.nav-cta {
  padding: 30px 30px 30px 30px;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-500));
  color: var(--white) !important;
  border-radius: 50px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin: auto;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(10,22,40,0.25); }

/* Hamburger */
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
.nav-toggle span { display: block; width: 26px; height: 2px; background: var(--navy-800); border-radius: 2px; transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 60px) 0 80px;
  overflow: hidden;
  background: var(--navy-900);
}
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(26,42,74,0.6) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(196,165,90,0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(15,31,58,0.8) 0%, transparent 50%);
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-particle { position: absolute; width: 4px; height: 4px; background: var(--gold-400); border-radius: 50%; opacity: 0.3; animation: float 20s infinite; }
@keyframes float { 0%, 100% { transform: translateY(0) rotate(0deg); } 50% { transform: translateY(-30px) rotate(180deg); } }
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px; background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50px;
  font-size: 0.8rem; color: var(--silver-300); letter-spacing: 1px; text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-badge-dot { width: 6px; height: 6px; background: var(--gold-400); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-title span { background: linear-gradient(135deg, var(--gold-300), var(--gold-500)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc {
  font-size: 1.1rem; color: var(--silver-400);
  max-width: 520px; line-height: 1.8;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 0.9rem; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  border: none;
  letter-spacing: 0.3px;
}
.btn-primary { background: linear-gradient(135deg, var(--gold-400), var(--gold-500)); color: var(--navy-900); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 35px rgba(196,165,90,0.3); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.2); }
.btn-outline:hover { border-color: var(--gold-400); color: var(--gold-400); transform: translateY(-3px); }
.btn-light { background: var(--white); color: var(--navy-800); }
.btn-light:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-visual-inner {
  width: 100%; max-width: 500px; aspect-ratio: 1;
  position: relative;
}
.hero-circle {
  position: absolute; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.06);
}
.hero-circle-1 { width: 100%; height: 100%; top: 0; left: 0; animation: spin 30s linear infinite; }
.hero-circle-2 { width: 75%; height: 75%; top: 12.5%; left: 12.5%; animation: spin 20s linear infinite reverse; }
.hero-circle-3 { width: 50%; height: 50%; top: 25%; left: 25%; animation: spin 15s linear infinite; }
.hero-circle-4 { width: 25%; height: 25%; top: 37.5%; left: 37.5%; background: radial-gradient(circle, rgba(196,165,90,0.15), transparent); animation: pulse 3s infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-molecule {
  position: absolute; width: 8px; height: 8px; background: var(--gold-400); border-radius: 50%;
  box-shadow: 0 0 20px rgba(196,165,90,0.3);
}
.hero-molecule:nth-child(5) { top: 10%; left: 50%; }
.hero-molecule:nth-child(6) { top: 50%; right: 10%; }
.hero-molecule:nth-child(7) { bottom: 10%; left: 30%; }
.hero-molecule:nth-child(8) { top: 30%; left: 10%; }
.hero-molecule:nth-child(9) { bottom: 30%; right: 15%; }

.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 48px; }
.hero-stat { text-align: center; }
.hero-stat-value { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 800; color: var(--white); }
.hero-stat-label { font-size: 0.8rem; color: var(--silver-500); margin-top: 4px; }

/* ===== SECTION HEADERS ===== */
.section { padding: 100px 0; position: relative; }
.section-dark { background: var(--navy-900); }
.section-light { background: var(--silver-50); }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(10,22,40,0.06);
  border-radius: 50px;
  font-size: 0.75rem; font-weight: 600; color: var(--navy-500);
  letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 16px;
}
.section-tag-light { background: rgba(255,255,255,0.08); color: var(--silver-300); }
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--navy-800);
  margin-bottom: 16px;
}
.section-dark .section-title { color: var(--white); }
.section-title span { background: linear-gradient(135deg, var(--gold-400), var(--gold-500)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-desc { font-size: 1.05rem; color: var(--silver-600); line-height: 1.8; }
.section-dark .section-desc { color: var(--silver-400); }

/* ===== ABOUT PREVIEW ===== */
.about-preview { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.about-image img { width: 100%; height: 450px; object-fit: cover; }
.about-image-badge {
  position: absolute; bottom: 24px; left: 24px;
  padding: 16px 24px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  color: var(--white);
}
.about-image-badge strong { display: block; font-size: 1.2rem; }
.about-image-badge span { font-size: 0.85rem; opacity: 0.8; }
.about-content h3 { font-size: 1.6rem; color: var(--navy-800); margin-bottom: 16px; }
.about-content p { color: var(--silver-600); margin-bottom: 16px; line-height: 1.8; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 24px 0; }
.about-feature { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; color: var(--navy-700); }
.about-feature-icon { width: 20px; height: 20px; background: linear-gradient(135deg, var(--gold-400), var(--gold-500)); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--navy-900); font-size: 0.7rem; font-weight: 700; flex-shrink: 0; }

/* ===== STATS ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-card {
  text-align: center;
  padding: 40px 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.stat-card:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
.stat-icon { font-size: 2.5rem; margin-bottom: 16px; }
.stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem; font-weight: 800;
  background: linear-gradient(135deg, var(--gold-300), var(--white));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: 0.9rem; color: var(--silver-400); margin-top: 8px; }

/* ===== SERVICES / CARDS ===== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  padding: 40px 32px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--silver-200);
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--gold-400), var(--navy-400));
  transform: scaleX(0); transform-origin: left;
  transition: var(--transition-slow);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, rgba(196,165,90,0.1), rgba(10,22,40,0.05));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
}
.service-card h3 { font-size: 1.2rem; color: var(--navy-800); margin-bottom: 12px; }
.service-card p { font-size: 0.9rem; color: var(--silver-600); line-height: 1.7; }

/* ===== PRODUCT CARDS ===== */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--silver-200);
  transition: var(--transition);
  cursor: pointer;
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.product-card-image {
  height: 240px;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-500));
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.product-card-image .product-placeholder {
  font-size: 3rem; opacity: 0.3; color: var(--white);
}
.product-card-image .product-category {
  position: absolute; top: 16px; left: 16px;
  padding: 4px 14px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  border-radius: 50px;
  font-size: 0.7rem; color: var(--white); letter-spacing: 1px; text-transform: uppercase;
}
.product-card-body { padding: 24px; }
.product-card-body h3 { font-size: 1.1rem; color: var(--navy-800); margin-bottom: 8px; }
.product-card-body p { font-size: 0.88rem; color: var(--silver-600); line-height: 1.6; margin-bottom: 16px; }
.product-card-meta { display: flex; justify-content: space-between; align-items: center; }
.product-card-status {
  font-size: 0.75rem; font-weight: 600; padding: 4px 12px; border-radius: 50px;
}
.status-approved { background: rgba(16,185,129,0.1); color: #10b981; }
.status-pending { background: rgba(245,158,11,0.1); color: #f59e0b; }
.status-research { background: rgba(59,130,246,0.1); color: #3b82f6; }

/* ===== TIMELINE ===== */
.timeline { position: relative; max-width: 900px; margin: 0 auto; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(to bottom, var(--gold-400), var(--navy-400), transparent);
  transform: translateX(-50%);
}
.timeline-item {
  display: flex; align-items: flex-start; margin-bottom: 48px;
  position: relative;
}
.timeline-item:nth-child(odd) { flex-direction: row-reverse; }
.timeline-content {
  width: 42%;
  padding: 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--silver-200);
  transition: var(--transition);
}
.timeline-content:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.timeline-year {
  font-family: var(--font-heading); font-size: 0.8rem; font-weight: 700;
  color: var(--gold-400); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px;
}
.timeline-content h3 { font-size: 1.1rem; color: var(--navy-800); margin-bottom: 8px; }
.timeline-content p { font-size: 0.88rem; color: var(--silver-600); line-height: 1.7; }
.timeline-dot {
  position: absolute; left: 50%; top: 32px;
  width: 16px; height: 16px;
  background: linear-gradient(135deg, var(--gold-400), var(--gold-500));
  border-radius: 50%; transform: translateX(-50%);
  box-shadow: 0 0 0 4px rgba(196,165,90,0.2);
  z-index: 2;
}

/* ===== TESTIMONIALS ===== */
.testimonials-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.testimonial-card {
  padding: 32px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.testimonial-card:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
.testimonial-stars { color: var(--gold-400); font-size: 0.9rem; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial-text { font-size: 0.95rem; color: var(--silver-300); line-height: 1.8; margin-bottom: 20px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--navy-400), var(--navy-600));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-weight: 700; font-size: 1.1rem;
}
.testimonial-name { font-weight: 600; color: var(--white); font-size: 0.95rem; }
.testimonial-role { font-size: 0.8rem; color: var(--silver-400); }

/* ===== CONTACT FORM ===== */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info { display: flex; flex-direction: column; gap: 32px; }
.contact-info-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-info-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, rgba(196,165,90,0.12), rgba(10,22,40,0.06));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.contact-info-item h4 { font-size: 1rem; color: var(--navy-800); margin-bottom: 4px; }
.contact-info-item p { font-size: 0.9rem; color: var(--silver-600); line-height: 1.6; }

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 0.85rem; font-weight: 600; color: var(--navy-700); margin-bottom: 6px;
}
.form-control {
  width: 100%; padding: 14px 18px;
  background: var(--silver-50);
  border: 2px solid var(--silver-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
  color: var(--navy-900);
}
.form-control:focus { border-color: var(--gold-400); background: var(--white); box-shadow: 0 0 0 4px rgba(196,165,90,0.1); }
textarea.form-control { min-height: 140px; resize: vertical; }

/* ===== BLOG ===== */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.blog-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--silver-200);
  transition: var(--transition);
}
.blog-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.blog-card-image {
  height: 200px;
  background: linear-gradient(135deg, var(--navy-600), var(--navy-800));
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.blog-card-image .blog-placeholder { font-size: 2.5rem; opacity: 0.2; color: var(--white); }
.blog-card-image .blog-date {
  position: absolute; bottom: 12px; left: 16px;
  font-size: 0.75rem; color: rgba(255,255,255,0.7);
  background: rgba(0,0,0,0.3); padding: 4px 12px; border-radius: 50px;
}
.blog-card-body { padding: 24px; }
.blog-card-tag {
  display: inline-block; padding: 4px 12px;
  background: rgba(196,165,90,0.1); color: var(--gold-500);
  font-size: 0.7rem; font-weight: 600; border-radius: 50px; letter-spacing: 0.5px;
  margin-bottom: 12px; text-transform: uppercase;
}
.blog-card-body h3 { font-size: 1.05rem; margin-bottom: 10px; color: var(--navy-800); }
.blog-card-body p { font-size: 0.88rem; color: var(--silver-600); line-height: 1.7; margin-bottom: 16px; }
.blog-card-link { font-size: 0.85rem; font-weight: 600; color: var(--navy-500); display: inline-flex; align-items: center; gap: 6px; }
.blog-card-link:hover { color: var(--gold-400); gap: 10px; }

/* ===== CERTIFICATE ===== */
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cert-card {
  padding: 32px;
  background: var(--white);
  border: 2px solid var(--silver-200);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
}
.cert-card:hover { border-color: var(--gold-400); transform: translateY(-4px); box-shadow: var(--shadow-gold); }
.cert-icon { font-size: 3rem; margin-bottom: 16px; }
.cert-card h3 { font-size: 1rem; color: var(--navy-800); margin-bottom: 8px; }
.cert-card p { font-size: 0.85rem; color: var(--silver-600); }
.cert-badge {
  display: inline-block; margin-top: 12px; padding: 4px 14px;
  background: linear-gradient(135deg, var(--gold-400), var(--gold-500));
  color: var(--navy-900); font-size: 0.7rem; font-weight: 700; border-radius: 50px; letter-spacing: 0.5px;
}

/* ===== PRODUCT DETAIL ===== */
.product-detail-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.product-detail-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 500px;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-500));
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.product-detail-image .pd-placeholder { font-size: 5rem; opacity: 0.2; color: var(--white); }
.product-detail-info h1 { font-size: 2rem; color: var(--navy-800); margin-bottom: 16px; }
.product-detail-info .pd-meta { display: flex; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.product-detail-info .pd-meta span { font-size: 0.85rem; color: var(--silver-600); }
.product-detail-info .pd-meta strong { color: var(--navy-700); }
.product-detail-info .pd-price { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; color: var(--gold-500); margin-bottom: 20px; }
.product-detail-info p { color: var(--silver-600); line-height: 1.8; margin-bottom: 20px; }
.product-detail-info h3 { font-size: 1.1rem; color: var(--navy-800); margin-bottom: 12px; margin-top: 24px; }
.product-detail-info ul { padding-left: 20px; margin-bottom: 20px; }
.product-detail-info ul li { color: var(--silver-600); margin-bottom: 6px; list-style: disc; }

/* ===== PAGE HEADER ===== */
.page-header {
  padding: calc(var(--nav-height) + 60px) 0 60px;
  background: var(--navy-900);
  position: relative; overflow: hidden;
}
.page-header-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 30%, rgba(26,42,74,0.5) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 70%, rgba(196,165,90,0.05) 0%, transparent 50%);
}
.page-header .container { position: relative; z-index: 2; text-align: center; }
.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--white); margin-bottom: 12px;
}
.page-header p { color: var(--silver-400); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }
.page-breadcrumb { font-size: 0.85rem; color: var(--silver-500); margin-bottom: 16px; }
.page-breadcrumb a { color: var(--silver-300); }
.page-breadcrumb a:hover { color: var(--gold-400); }
.page-breadcrumb span { color: var(--gold-400); }

/* ===== UPCOMING PRODUCT ===== */
.upcoming-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.upcoming-card {
  display: grid; grid-template-columns: 120px 1fr;
  gap: 20px; padding: 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--silver-200);
  transition: var(--transition);
}
.upcoming-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.upcoming-phase {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-500));
  border-radius: var(--radius-sm);
  padding: 12px; text-align: center;
}
.upcoming-phase span:first-child { font-family: var(--font-heading); font-size: 0.7rem; font-weight: 700; color: var(--gold-400); letter-spacing: 1px; text-transform: uppercase; }
.upcoming-phase span:last-child { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800; color: var(--white); }
.upcoming-card h3 { font-size: 1.05rem; color: var(--navy-800); margin-bottom: 6px; }
.upcoming-card p { font-size: 0.88rem; color: var(--silver-600); line-height: 1.6; }
.upcoming-progress { margin-top: 12px; }
.upcoming-progress-bar { height: 4px; background: var(--silver-200); border-radius: 2px; overflow: hidden; }
.upcoming-progress-fill { height: 100%; background: linear-gradient(90deg, var(--gold-400), var(--navy-400)); border-radius: 2px; }
.upcoming-progress-label { font-size: 0.75rem; color: var(--silver-500); margin-top: 4px; }

/* ===== FOOTER ===== */
.footer {
  background: var(--navy-900);
  border-top: 1px solid rgba(255,255,255,0.05);
  position: relative;
}
.footer-top { padding: 80px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .nav-logo { color: var(--white); margin-bottom: 16px; display: inline-block; }
.footer-brand p { color: var(--silver-400); font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-social { display: flex; gap: 12px; margin-top: 24px; }
.footer-social a {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  color: var(--silver-300);
  font-size: 1rem;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--gold-400); color: var(--navy-900); transform: translateY(-3px); }

.footer-col h4 { font-size: 0.9rem; color: var(--white); margin-bottom: 20px; text-transform: uppercase; letter-spacing: 1px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 0.88rem; color: var(--silver-400); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--gold-400); padding-left: 4px; }

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap;
  font-size: 0.85rem; color: var(--silver-500);
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { color: var(--silver-500); font-size: 0.82rem; }
.footer-bottom-links a:hover { color: var(--gold-400); }

/* ===== SCROLL ANIMATIONS ===== */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-left.visible { opacity: 1; transform: translateX(0); }
.fade-right { opacity: 0; transform: translateX(40px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-right.visible { opacity: 1; transform: translateX(0); }
.fade-scale { opacity: 0; transform: scale(0.9); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-scale.visible { opacity: 1; transform: scale(1); }

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed; bottom: 30px; right: 30px; z-index: 999;
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-500));
  color: var(--white);
  border: none; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  opacity: 0; visibility: hidden; transform: translateY(20px);
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-stats { max-width: 400px; margin: 48px auto 0; }
  .hero-visual { display: none; }
  .about-preview { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .product-detail-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .timeline::before { left: 24px; }
  .timeline-item, .timeline-item:nth-child(odd) { flex-direction: row; }
  .timeline-content { width: calc(100% - 60px); margin-left: 60px; }
  .timeline-dot { left: 24px; }
}

@media (max-width: 768px) {
  :root { --nav-height: 70px; }
  .nav-links {
    position: fixed; top: var(--nav-height); left: 0; width: 100%;
    flex-direction: column; gap: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    padding: 20px 24px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%); opacity: 0;
    transition: var(--transition);
    border-bottom: 1px solid var(--silver-200);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--silver-100); width: 100%; }
  .nav-links a:last-child { border-bottom: none; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .upcoming-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .hero { min-height: auto; padding: calc(var(--nav-height) + 40px) 0 60px; }
  .hero-title { font-size: 2rem; }
  .hero-desc { font-size: 1rem; }
  .section { padding: 60px 0; }
  .section-header { margin-bottom: 40px; }
  .hero-stats { display: none; }
  .product-detail-image { height: 300px; }
  .back-to-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-card { padding: 24px 16px; }
  .stat-number { font-size: 1.8rem; }
  .upcoming-card { grid-template-columns: 1fr; }
  .upcoming-phase { flex-direction: row; gap: 8px; padding: 8px 16px; }
}

/* ===== GLASSMORPHISM HELPERS ===== */
.glass {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
}
.glass-dark {
  background: rgba(6,13,26,0.6);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.06);
}

/* ===== SECTION DIVIDER ===== */
.section-divider {
  width: 80px; height: 3px;
  background: linear-gradient(90deg, var(--gold-400), var(--navy-400));
  margin: 0 auto 24px;
  border-radius: 2px;
}
.section-dark .section-divider { background: linear-gradient(90deg, var(--gold-400), var(--white)); }

/* ===== SELECTION ===== */
::selection { background: var(--gold-400); color: var(--navy-900); }
::-moz-selection { background: var(--gold-400); color: var(--navy-900); }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--silver-100); }
::-webkit-scrollbar-thumb { background: var(--navy-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--navy-400); }