/* ===================================
   KANABUR DIABETES CLINIC - MATERIAL UI DESIGN
   Modern, Simplistic Material Design System
   =================================== */

/* ===== MATERIAL DESIGN IMPORTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/icon?family=Material+Icons');

/* ===== CSS VARIABLES - MATERIAL THEME ===== */
:root {
  /* Material Color Palette */
  --primary-main: #00bcd4;
  --primary-dark: #0097a7;
  --primary-light: #b2ebf2;
  
  --secondary-main: #009688;
  --secondary-dark: #00796b;
  --secondary-light: #b2dfdb;
  
  --accent: #e91e63;
  --accent-light: #f48fb1;
  
  --surface: #ffffff;
  --background: #fafafa;
  --error: #f44336;
  --success: #4caf50;
  
  /* Text Colors */
  --text-primary: rgba(0, 0, 0, 0.87);
  --text-secondary: rgba(0, 0, 0, 0.60);
  --text-disabled: rgba(0, 0, 0, 0.38);
  --text-on-primary: #ffffff;
  
  /* Material Elevation Shadows */
  --elevation-1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  --elevation-2: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
  --elevation-3: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
  --elevation-4: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
  --elevation-5: 0 19px 38px rgba(0,0,0,0.30), 0 15px 12px rgba(0,0,0,0.22);
  
  /* Spacing (8px grid system) */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  
  /* Material Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-standard: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 375ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Roboto', sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul {
  list-style: none;
}

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

/* ===== MATERIAL TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 3.75rem;
  font-weight: 300;
  letter-spacing: -0.015em;
}

h2 {
  font-size: 3rem;
  font-weight: 400;
  letter-spacing: -0.005em;
}

h3 {
  font-size: 2.125rem;
  font-weight: 400;
}

h4 {
  font-size: 1.5rem;
  font-weight: 500;
}

h5 {
  font-size: 1.25rem;
  font-weight: 500;
}

h6 {
  font-size: 1rem;
  font-weight: 500;
}

p {
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

/* ===== MATERIAL COMPONENTS ===== */

/* Material Card */
.material-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-2);
  padding: var(--spacing-lg);
  transition: box-shadow var(--transition-standard);
}

.material-card:hover {
  box-shadow: var(--elevation-4);
}

/* Material Button */
.material-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  min-width: 64px;
  height: 36px;
}

.material-btn-primary {
  background-color: var(--primary-main);
  color: var(--text-on-primary);
  box-shadow: var(--elevation-2);
}

.material-btn-primary:hover {
  background-color: var(--primary-dark);
  box-shadow: var(--elevation-3);
}

.material-btn-secondary {
  background-color: var(--secondary-main);
  color: var(--text-on-primary);
  box-shadow: var(--elevation-2);
}

.material-btn-secondary:hover {
  background-color: var(--secondary-dark);
  box-shadow: var(--elevation-3);
}

.material-btn-outlined {
  background-color: transparent;
  color: var(--primary-main);
  border: 1px solid var(--primary-main);
  box-shadow: none;
}

.material-btn-outlined:hover {
  background-color: rgba(0, 188, 212, 0.08);
}

/* Floating Action Button (FAB) */
.fab {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--accent);
  color: var(--text-on-primary);
  box-shadow: var(--elevation-3);
  border: none;
  cursor: pointer;
  transition: all var(--transition-standard);
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 1000;
}

.fab:hover {
  box-shadow: var(--elevation-5);
  transform: scale(1.05);
}

/* ===== HEADER / NAVIGATION ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--surface);
  box-shadow: var(--elevation-2);
  z-index: 999;
  transition: all var(--transition-standard);
}

.header.scrolled {
  box-shadow: var(--elevation-3);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--primary-main);
}

.logo img {
  height: 48px;
  margin-right: var(--spacing-sm);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.nav-link {
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  background-color: rgba(0, 188, 212, 0.08);
  color: var(--primary-main);
}

.nav-link.active {
  color: var(--primary-main);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--spacing-md);
  right: var(--spacing-md);
  height: 2px;
  background-color: var(--primary-main);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 64px;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 188, 212, 0.85) 0%, rgba(0, 150, 136, 0.85) 100%);
  z-index: -1;
}

.hero-content {
  text-align: center;
  color: var(--text-on-primary);
  max-width: 800px;
  padding: var(--spacing-xl);
  animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: var(--spacing-md);
  opacity: 0.95;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.hero-description {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
  color: var(--text-on-primary);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-btn {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  height: 48px;
  min-width: 160px;
}

/* ===== SECTION STYLES ===== */
.section {
  padding: var(--spacing-xxl) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  color: var(--primary-main);
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background-color: var(--accent);
  margin: var(--spacing-md) auto 0;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

/* ===== ABOUT SECTION ===== */
.about-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--elevation-3);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.about-image:hover img {
  transform: scale(1.05);
}

.about-content h3 {
  color: var(--primary-main);
  margin-bottom: var(--spacing-md);
}

.about-content p {
  margin-bottom: var(--spacing-md);
}

/* ===== TEAM SECTION ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.team-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--elevation-2);
  transition: all var(--transition-standard);
}

.team-card:hover {
  box-shadow: var(--elevation-4);
  transform: translateY(-8px);
}

.team-image {
  width: 100%;
  height: 320px;
  overflow: hidden;
  position: relative;
}

.team-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-info {
  padding: var(--spacing-lg);
}

.team-name {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.team-role {
  color: var(--primary-main);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.team-credentials {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.team-bio {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ===== FACILITIES SECTION ===== */
.facilities-section {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-light) 100%);
}

.facilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.facility-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  text-align: center;
  box-shadow: var(--elevation-2);
  transition: all var(--transition-standard);
}

.facility-card:hover {
  box-shadow: var(--elevation-4);
  transform: translateY(-4px);
}

.facility-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-main), var(--secondary-main));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--text-on-primary);
  font-size: 2rem;
}

.facility-title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

/* ===== GALLERY SECTION ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--elevation-2);
  cursor: pointer;
  aspect-ratio: 4/3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 188, 212, 0.8), transparent);
  opacity: 0;
  transition: opacity var(--transition-standard);
  display: flex;
  align-items: flex-end;
  padding: var(--spacing-lg);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

/* ===== CONTACT SECTION ===== */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

.contact-info-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--elevation-2);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-lg);
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-main), var(--secondary-main));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-on-primary);
  margin-right: var(--spacing-md);
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 1rem;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.contact-details p {
  color: var(--text-secondary);
  margin: 0;
}

.contact-form {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--elevation-2);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid rgba(0, 0, 0, 0.23);
  border-radius: var(--radius-sm);
  font-family: 'Roboto', sans-serif;
  font-size: 1rem;
  transition: all var(--transition-fast);
  background: var(--surface);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-main);
  box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  padding: var(--spacing-md);
  height: 48px;
}

/* ===== MAP SECTION ===== */
.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--elevation-2);
  margin-bottom: var(--spacing-xl);
}

#map {
  width: 100%;
  height: 100%;
}

/* ===== FOOTER ===== */
.footer {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
  color: var(--text-on-primary);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-text {
  color: var(--text-on-primary);
  opacity: 0.9;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

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

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 64px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 64px);
    background: var(--surface);
    flex-direction: column;
    padding: var(--spacing-xl);
    transition: left var(--transition-standard);
    box-shadow: var(--elevation-3);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .about-container,
  .contact-container {
    grid-template-columns: 1fr;
  }
  
  .team-grid {
    grid-template-columns: 1fr;
  }
  
  .facilities-grid {
    grid-template-columns: 1fr;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  h3 {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .navbar {
    padding: var(--spacing-md);
  }
}

/* ===== UTILITY CLASSES ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.text-center {
  text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }