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

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f8f9fa;
}

/* Navigation */
.navbar {
  background: white;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #007bff;
}

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

.nav-item {
  cursor: pointer;
  padding: 0.5rem 1rem;
  border-radius: 5px;
  transition: all 0.3s ease;
}

.nav-item:hover,
.nav-item.active {
  background: #007bff;
  color: white;
}

.mobile-menu {
  display: none;
  background: #007bff;
  color: white;
  border: none;
  padding: 0.5rem;
  border-radius: 5px;
  cursor: pointer;
}

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

/* Page Management */
.page {
  display: none;
  animation: fadeIn 0.5s ease;
}

.page.active {
  display: block;
}

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

/* Cards */
.card {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
}

.card h2 {
  color: #007bff;
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

.card h3 {
  color: #333;
  margin-bottom: 0.5rem;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 3rem 2rem;
}

.profile-image {
  width: 200px;
  height: 230px;
  background: #007bff;
  border-radius: 50%;
  margin: 0 auto 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero h1 {
  font-size: 2.5rem;
  color: #333;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 0.8rem 2rem;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: #007bff;
  color: white;
}

.btn-secondary {
  background: transparent;
  color: #007bff;
  border: 2px solid #007bff;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

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

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.stat {
  background: white;
  padding: 1.5rem;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.stat-number {
  font-size: 2rem;
  font-weight: bold;
  color: #007bff;
  display: block;
}

.stat-label {
  color: #666;
  font-size: 0.9rem;
}

/* Timeline */
.timeline {
  margin-top: 2rem;
}

.timeline-item {
  border-left: 3px solid #007bff;
  padding-left: 1.5rem;
  margin-bottom: 2rem;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 0;
  width: 12px;
  height: 12px;
  background: #007bff;
  border-radius: 50%;
}

.timeline-date {
  color: #007bff;
  font-weight: bold;
  font-size: 0.9rem;
}

.timeline-title {
  font-weight: bold;
  margin: 0.5rem 0;
}

.timeline-desc {
  color: #666;
}

/* Skills */
.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.skill {
  background: #e9ecef;
  color: #007bff;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  border: 1px solid #007bff;
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.contact-info {
  background: #007bff;
  color: white;
  padding: 2rem;
  border-radius: 10px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid #e9ecef;
  border-radius: 5px;
  font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #007bff;
}

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

/* Responsive */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    flex-direction: column;
    padding: 1rem;
  }

  .nav-menu.active {
    display: flex;
  }

  .mobile-menu {
    display: block;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .buttons {
    flex-direction: column;
    align-items: center;
  }

  .container {
    padding: 80px 15px 20px;
  }
}