/* Custom CSS for Clean Corporate Website */
/* Supporting Tailwind CSS Framework */

/* CSS Variables for Design System */
:root {
  --color-primary: #2C3E50;
  --color-secondary: #34495E;
  --color-background: #FFFFFF;
  --color-footer-bg: #1A252F;
  --color-button: #3498DB;
  --color-section-1: #FFFFFF;
  --color-section-2: #F8F9FA;
  --color-section-3: #ECF0F1;
  
  --color-success: #27AE60;
  --color-warning: #F39C12;
  --color-error: #E74C3C;
  
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-secondary: 'Source Sans Pro', sans-serif;
  
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  --border-radius: 4px;
  --border-radius-lg: 8px;
  
  --shadow-sm: 0 1px 2px rgba(44, 62, 80, 0.05);
  --shadow-md: 0 4px 6px rgba(44, 62, 80, 0.07);
  --shadow-lg: 0 10px 15px rgba(44, 62, 80, 0.1);
  --shadow-xl: 0 20px 25px rgba(44, 62, 80, 0.15);
  
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
}

/* Global Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-background);
  color: var(--color-primary);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--spacing-lg) 0;
  color: var(--color-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.875rem);
}

h5 {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
}

h6 {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
}

p {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-secondary);
  font-size: 1.0625rem;
  line-height: 1.7;
}

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

a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Container and Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  width: 100%;
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  width: 100%;
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-sm {
  padding: var(--spacing-2xl) 0;
}

.section-lg {
  padding: 5rem 0;
}

/* Section Background Variations */
.bg-primary {
  background-color: var(--color-section-1);
}

.bg-secondary {
  background-color: var(--color-section-2);
}

.bg-tertiary {
  background-color: var(--color-section-3);
}

/* Header */
.header {
  background-color: var(--color-background);
  border-bottom: 1px solid rgba(52, 73, 94, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

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

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.logo:hover {
  text-decoration: none;
  color: var(--color-button);
}

/* Navigation */
.nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-xl);
}

.nav a {
  color: var(--color-secondary);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
  text-decoration: none;
}

.nav a:hover,
.nav a.active {
  color: var(--color-button);
  background-color: rgba(52, 152, 219, 0.1);
  text-decoration: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-fast);
  line-height: 1;
  position: relative;
  overflow: hidden;
}

.btn:focus {
  outline: 2px solid var(--color-button);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-button);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: #2980B9;
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background-color: var(--color-button);
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
}

/* Cards */
.card {
  background-color: var(--color-background);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition-normal);
  border: 1px solid rgba(52, 73, 94, 0.08);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(52, 152, 219, 0.2);
}

.card-header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid rgba(52, 73, 94, 0.08);
}

.card-body {
  padding: var(--spacing-xl);
}

.card-footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  background-color: var(--color-section-2);
  border-top: 1px solid rgba(52, 73, 94, 0.08);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.card-text {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Flex Utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

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

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* Spacing Utilities */
.m-0 { margin: 0; }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.ml-md { margin-left: var(--spacing-md); }
.mr-md { margin-right: var(--spacing-md); }

.p-0 { padding: 0; }
.pt-lg { padding-top: var(--spacing-lg); }
.pb-lg { padding-bottom: var(--spacing-lg); }
.pl-md { padding-left: var(--spacing-md); }
.pr-md { padding-right: var(--spacing-md); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-section-2) 0%, var(--color-section-3) 100%);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.hero h1 {
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl) auto;
}

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.form-control {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid rgba(52, 73, 94, 0.1);
  border-radius: var(--border-radius);
  font-family: var(--font-primary);
  font-size: 1rem;
  background-color: var(--color-background);
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-button);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-control::placeholder {
  color: rgba(52, 73, 94, 0.5);
}

/* Footer */
.footer {
  background-color: var(--color-footer-bg);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-xl) 0;
}

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

.footer-section h3 {
  color: white;
  margin-bottom: var(--spacing-lg);
  font-size: 1.25rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-sm);
}

.footer-section a:hover {
  color: white;
  text-decoration: none;
}

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

/* Utility Classes */
.container-fluid {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  width: 100%;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 calc(var(--spacing-lg) * -0.5);
}

.col {
  padding: 0 calc(var(--spacing-lg) * 0.5);
}

.col-12 { width: 100%; }
.col-6 { width: 50%; }
.col-4 { width: 33.333333%; }
.col-3 { width: 25%; }

/* Responsive Design */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .hero {
    padding: var(--spacing-2xl) 0;
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }
  
  .header-content {
    padding: var(--spacing-sm) 0;
  }
  
  .row {
    margin: 0;
  }
  
  .col {
    padding: 0;
    margin-bottom: var(--spacing-lg);
  }
  
  .col-6,
  .col-4,
  .col-3 {
    width: 100%;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p {
    font-size: 1.125rem;
  }
}

@media (max-width: 480px) {
  .container,
  .container-wide {
    padding: 0 var(--spacing-sm);
  }
  
  .section {
    padding: var(--spacing-xl) 0;
  }
  
  .card-body,
  .card-header {
    padding: var(--spacing-lg);
  }
  
  .btn {
    width: 100%;
    margin-bottom: var(--spacing-sm);
  }
  
  .btn:last-child {
    margin-bottom: 0;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus styles for better accessibility */
button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--color-button);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .card {
    border: 2px solid var(--color-primary);
  }
  
  .btn-outline {
    border-width: 3px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}