/* ============================
   Denco Medical - Global Styles
   ============================ */

:root {
  --primary-color: #0066cc;
  --secondary-color: #00a6ed;
  --accent-color: #ff6b35;
  --dark-gray: #2c3e50;
  --medium-gray: #7f8c8d;
  --light-gray: #ecf0f1;
  --white: #ffffff;
  --text-dark: #333333;
  --text-light: #666666;
  --border-radius: 8px;
  --transition: all 0.3s ease;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--white);
}

/* ============================
   Typography
   ============================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--dark-gray);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-light);
  font-size: 1.1rem;
}

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

a:hover {
  color: var(--secondary-color);
}

/* ============================
   Header & Navigation
   ============================ */

.header {
  background: var(--white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-menu a {
  color: var(--dark-gray);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  background: var(--light-gray);
  color: var(--primary-color);
}

/* ============================
   Hero Section
   ============================ */

.hero {
  position: relative;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: var(--white);
  padding: 8rem 2rem;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('https://images.unsplash.com/photo-1588776814546-1ffcf47267a5?w=1600&h=800&fit=crop') center/cover;
  opacity: 0.2;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--white);
  font-size: 3.5rem;
  margin-bottom: 1rem;
  animation: fadeInUp 0.8s ease-out;
}

.hero .subtitle {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  opacity: 0.95;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-tagline {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* ============================
   Container & Layout
   ============================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--light-gray);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--primary-color);
  border-radius: 2px;
}

.section-description {
  font-size: 1.2rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 1.5rem auto 0;
}

/* ============================
   Cards & Grid
   ============================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid transparent;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.card-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 2rem;
  color: var(--white);
}

.card h3 {
  margin-bottom: 1rem;
  color: var(--dark-gray);
}

.card p {
  color: var(--text-light);
  line-height: 1.7;
}

/* ============================
   Two Column Layout
   ============================ */

.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.column-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
}

.column-content h3 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.column-content ul {
  list-style: none;
  margin: 1.5rem 0;
}

.column-content ul li {
  padding: 1rem 0;
  padding-left: 2rem;
  position: relative;
  color: var(--text-light);
}

.column-content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: 700;
  font-size: 1.2rem;
}

/* ============================
   Stats Section
   ============================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  text-align: center;
  margin-top: 3rem;
}

.stat-item {
  padding: 2rem;
}

.stat-number {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1.1rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================
   Feature List
   ============================ */

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--white);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.feature-item:hover {
  background: var(--light-gray);
}

.feature-icon {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
}

.feature-content h4 {
  margin-bottom: 0.5rem;
  color: var(--dark-gray);
}

.feature-content p {
  font-size: 1rem;
  color: var(--text-light);
}

/* ============================
   Call to Action
   ============================ */

.cta-section {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  padding: 5rem 2rem;
  text-align: center;
  margin-top: 5rem;
}

.cta-section h2 {
  color: var(--white);
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--white);
  color: var(--primary-color);
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
}

.btn:hover {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--primary-color);
  color: var(--white);
  border: 2px solid var(--primary-color);
}

.btn-primary:hover {
  background: transparent;
  color: var(--primary-color);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

.btn-secondary:hover {
  background: var(--white);
  color: var(--primary-color);
}

/* ============================
   Footer
   ============================ */

.footer {
  background: var(--dark-gray);
  color: var(--white);
  padding: 3rem 0 1rem;
  margin-top: 5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer h4 {
  color: var(--white);
  margin-bottom: 1.5rem;
}

.footer p,
.footer a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

.footer a:hover {
  color: var(--white);
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 0.8rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================
   Animations
   ============================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-fade-in {
  animation: fadeIn 1s ease-out;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

/* ============================
   Responsive Design
   ============================ */

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.8rem; }
  h3 { font-size: 1.5rem; }
  
  .hero {
    padding: 5rem 2rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero .subtitle {
    font-size: 1.2rem;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .two-column {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .nav-menu {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .card-grid,
  .feature-list,
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
}