/* base.css - Optimized common styles shared across all pages */
:root {
  /* Enhanced color palette */
  --primary-color: #1e40af; /* Deeper blue */
  --primary-light: #3b82f6;
  --primary-dark: #1e3a8a;
  --secondary-color: #0f766e; /* Teal accent */
  --accent-color: #6d28d9; /* Purple accent */
  --success-color: #059669;
  --warning-color: #d97706;
  --danger-color: #dc2626;
  
  /* Text colors */
  --text-dark: #1e293b;
  --text-medium: #475569;
  --text-light: #94a3b8;
  --text-white: #f8fafc;
  
  /* Background colors */
  --bg-white: #ffffff;
  --bg-light: #f1f5f9;
  --bg-medium: #e2e8f0;
  --bg-dark: #0f172a;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--primary-light));
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
  
  /* Border radius */
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 16px;
  
  /* Transitions */
  --transition-fast: all 0.2s ease;
  --transition-normal: all 0.3s ease;
  --transition-slow: all 0.5s ease;
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

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

a:hover {
  color: var(--primary-dark);
}

/* Clean button styles */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-normal);
  border: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--text-white);
  transform: translateY(-3px);
}

.btn-text {
  color: var(--primary-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  padding: 0;
  background: none;
}

.btn-text:after {
  content: "→";
  margin-left: 5px;
  transition: var(--transition-normal);
}

.btn-text:hover:after {
  transform: translateX(5px);
}

/* Section styling */
.section-title {
  font-size: 2.4rem;
  margin-bottom: 1.5rem;
  text-align: center;
  position: relative;
  padding-bottom: 15px;
  color: var(--text-dark);
  font-weight: 700;
}

.section-title:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 3px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-medium);
  margin-bottom: 2.5rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.1rem;
  line-height: 1.7;
}

/* Enhanced Header & Navigation */
header {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition-normal);
}

header.scrolled {
  padding: 5px 0;
  box-shadow: var(--shadow-lg);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  transition: var(--transition-normal);
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-dark);
  transition: var(--transition-normal);
  position: relative;
  color: #254394;
}

.logo:hover {
  color: #f97316;
}

.logo span {
  color: var(--primary-color);
  position: relative;
}

.logo span::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: var(--transition-normal);
}

.logo:hover span::after {
  width: 100%;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 35px;
}

.nav-links a {
  color: var(--text-medium);
  font-weight: 500;
  padding: 8px 0;
  position: relative;
}

.nav-links a:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-normal);
}

.nav-links a:hover:after,
.nav-links a.active:after {
  width: 100%;
}

.nav-links a.active {
  color: var(--primary-color);
  font-weight: 600;
}

/* Improved hamburger menu */
.hamburger {
  display: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  position: relative;
  z-index: 101;
}

.hamburger .bar {
  display: block;
  width: 100%;
  height: 3px;
  margin: 6px auto;
  background-color: var(--text-dark);
  transition: var(--transition-fast);
  border-radius: 3px;
}

.hamburger.active .bar:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
  background-color: var(--primary-color);
}

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
  background-color: var(--primary-color);
}

/* Enhanced Footer */
footer {
  background-color: var(--bg-dark);
  color: var(--text-white);
  padding: 70px 0 20px;
  position: relative;
}

.footer-social{
    padding-bottom: 50px;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.footer-logo a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 15px;
  display: block;
  transition: var(--transition-normal);
}

.footer-logo a:hover {
  color: var(--primary-light);
}

.footer-logo span {
  color: var(--primary-light);
}

.footer-logo p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}

.footer-links h3,
.footer-contact h3,
.footer-social h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
  color: var(--text-white);
}

.footer-links h3:after,
.footer-contact h3:after,
.footer-social h3:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--gradient-primary);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition-normal);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--primary-light);
  transform: translateX(5px);
}

.footer-contact p {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
  margin-right: 12px;
  color: var(--primary-light);
}

.social-icons {
  display: flex;
  gap: 15px;
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-white);
  transition: var(--transition-normal);
}

.social-icons a:hover {
  background: var(--gradient-primary);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* Animation Keyframes */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Animation Classes */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Animation delays */
.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; }

/* Responsive Design */
@media (max-width: 960px) {
  .nav-links {
    position: fixed;
    left: -190%;
    top: 0;
    flex-direction: column;
    background-color: var(--bg-white);
    width: 38%;
    height: 100vh;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow-lg);
    padding: 70px 0;
    z-index: 100;
  }

  .nav-links.active {
    left: 0;
  }

  .nav-links li {
    margin: 1px 0;
  }

  .hamburger {
    display: block;
    transform: scale(0.86);
    left: -5%;
  }
  .logo{
    transform: scale(0.86);
  }

@media (max-width: 768px) {
  .section-title {
    font-size: 1.9rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.7rem;
  }
  
  .section-subtitle {
    font-size: 0.95rem;
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}
}