/* Base Styles & Variables */
:root {
  /* Colors */
  --color-primary: #0a192f;      /* Dark navy blue */
  --color-secondary: #1e88e5;    /* Bright blue */
  --color-accent: #64ffda;       /* Teal accent */
  --color-text: #333333;         /* Dark gray for text */
  --color-text-light: #8892b0;   /* Light gray for secondary text */
  --color-background: #ffffff;   /* White background */
  --color-background-alt: #f5f5f5; /* Light gray background */
  --color-border: #e0e0e0;       /* Light gray borders */
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;
  
  /* Borders */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-medium: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* Reset & Globals */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

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

a:hover, a:focus {
  color: var(--color-accent);
}

ul {
  list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--space-md);
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  position: relative;
  padding-bottom: var(--space-md);
}

.section-title:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--color-secondary);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

section {
  padding: var(--space-xxl) 0;
}

.img-responsive {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-md);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
}

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

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

.logo {
  display: flex;
  align-items: center;
}

.logo a {
  display: flex;
  align-items: center;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-img {
  height: 80px;
  width: auto;
  margin-right: var(--space-sm);
}

.logo-text {
  display: none;
}

.nav-list {
  display: flex;
  align-items: center;
}

.nav-item {
  margin-left: var(--space-md);
}

.nav-link {
  color: var(--color-text);
  padding: var(--space-xs) var(--space-sm);
  font-weight: 500;
  position: relative;
}

.nav-link:hover, .nav-link:focus, .nav-link.active {
  color: var(--color-secondary);
}

.nav-link.active:after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-secondary);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 3px;
  margin: 5px 0;
  background-color: var(--color-primary);
  transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 8rem 0 5rem;
  background-color: var(--color-primary);
  color: white;
  overflow: hidden;
}

.hero:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(10, 25, 47, 0.95), rgba(30, 136, 229, 0.8));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3rem;
  color: white;
  margin-bottom: var(--space-lg);
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

/* Features Section */
.features {
  background-color: var(--color-background-alt);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.feature-card {
  background-color: white;
  padding: var(--space-xl);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  margin: 0 auto var(--space-md);
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 48px;
  height: 48px;
  stroke: var(--color-secondary);
  stroke-width: 2;
  fill: none;
}

.feature-card h3 {
  margin-bottom: var(--space-md);
}

/* Vision Section */
.vision {
  position: relative;
}

.vision .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.vision-content h2 {
  margin-bottom: var(--space-lg);
}

.vision-image {
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

/* CTA Section */
.cta {
  background-color: var(--color-primary);
  color: white;
  text-align: center;
  padding: var(--space-xxl) 0;
}

.cta h2 {
  color: white;
}

.cta p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Page Headers */
.page-header {
  background-color: var(--color-primary);
  color: white;
  text-align: center;
  padding: 8rem 0 3rem;
  margin-bottom: var(--space-xl);
}

.page-header h1 {
  color: white;
  margin-bottom: 0;
}

/* About Page */
.about-mission .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.our-story {
  background-color: var(--color-background-alt);
}

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

.value-card {
  padding: var(--space-lg);
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.value-icon {
  margin: 0 auto var(--space-md);
  width: 64px;
  height: 64px;
}

.value-icon svg {
  stroke: var(--color-secondary);
  stroke-width: 2;
  fill: none;
}

/* Services Page */
.services-intro .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.service-category {
  margin-bottom: var(--space-xl);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-lg);
  align-items: flex-start;
}

.service-icon {
  width: 80px;
}

.service-icon svg {
  stroke: var(--color-secondary);
  stroke-width: 1.5;
  fill: none;
}

.service-features {
  list-style: disc;
  padding-left: var(--space-lg);
  margin-top: var(--space-sm);
}

.service-features li {
  margin-bottom: var(--space-xs);
}

.benefits {
  background-color: var(--color-background-alt);
}

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

.benefit-card {
  padding: var(--space-lg);
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

/* Contact Page */
.contact-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-xl);
}

.contact-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-sm);
  font-family: var(--font-primary);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.info-card {
  padding: var(--space-lg);
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.info-icon {
  width: 36px;
  height: 36px;
}

.info-icon svg {
  stroke: var(--color-secondary);
  stroke-width: 1.5;
  fill: none;
}

.form-success {
  text-align: center;
  padding: var(--space-xl) 0;
}

.form-success h3 {
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  font-weight: 500;
  text-align: center;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  font-size: 1rem;
}

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

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

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

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

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

.btn-outline:hover, .btn-outline:focus {
  background-color: var(--color-secondary);
  color: white;
}

/* Footer */
.footer {
  background-color: var(--color-primary);
  color: white;
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-logo img {
  height: 40px;
  width: auto;
  margin-bottom: var(--space-sm);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-xl);
}

.footer-nav h3 {
  color: white;
  margin-bottom: var(--space-md);
  font-size: 1.1rem;
}

.footer-nav ul li {
  margin-bottom: var(--space-xs);
}

.footer-nav ul li a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-nav ul li a:hover {
  color: var(--color-accent);
}

.social-links {
  display: flex;
  gap: var(--space-sm);
}

.social-links li a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  transition: all var(--transition-fast);
}

.social-links li a svg {
  width: 18px;
  height: 18px;
  stroke: white;
  stroke-width: 2;
  fill: none;
}

.social-links li a:hover {
  background-color: var(--color-secondary);
}

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

.footer-bottom p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .vision .container,
  .about-mission .container,
  .services-intro .container {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .vision-image,
  .about-image {
    order: -1;
  }
  
  .service-category {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .service-icon {
    margin: 0 auto var(--space-md);
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .mobile-menu-toggle {
    display: block;
    z-index: 1001;
  }
  
  .nav-list {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 80%;
    max-width: 300px;
    background-color: var(--color-background);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem var(--space-lg) var(--space-lg);
    box-shadow: var(--shadow-lg);
    transition: right var(--transition-medium);
    z-index: 1000;
  }
  
  .nav-list.active {
    right: 0;
  }
  
  .nav-item {
    margin: var(--space-sm) 0;
    width: 100%;
  }
  
  .nav-link {
    display: block;
    padding: var(--space-sm) 0;
    font-size: 1.1rem;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }
  
  body.menu-open {
    overflow: hidden;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }
  
  .btn {
    width: 100%;
    max-width: 250px;
  }
}

@media (min-width: 768px) {
  .logo-text {
    display: inline;
  }
}

@media (max-width: 576px) {
  section {
    padding: var(--space-xl) 0;
  }
  
  .contact-form {
    grid-template-columns: 1fr;
  }
  
  .hero {
    padding: 6rem 0 3rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .values-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }
}