:root {
  --primary: #4361ee;
  --secondary: #3f37c9;
  --accent: #4895ef;
  --dark: #1e293b;
  --light: #f8fafc;
  --gray: #94a3b8;
  --success: #4ade80;
  --card-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: linear-gradient(135deg, #f5f7fa 0%, #e4e7f4 100%);
  overflow-x: hidden;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Header & Navigation */
header {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 0;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo i {
  color: var(--accent);
}

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

.nav-links a {
  color: var(--dark);
  text-decoration: none;
  font-weight: 600;
  padding: 0.5rem 0;
  position: relative;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: 3px;
}

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

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

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--dark);
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 9rem 0 5rem;
  text-align: center;
  background: linear-gradient(
    to right,
    rgba(67, 97, 238, 0.1),
    rgba(58, 12, 163, 0.1)
  );
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.1;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -50px;
  width: 300px;
  height: 300px;
  background: var(--secondary);
  border-radius: 50%;
  opacity: 0.1;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: var(--dark);
  position: relative;
  z-index: 2;
}

.hero h1 span {
  color: var(--primary);
}

.hero p {
  font-size: 1.2rem;
  color: var(--gray);
  max-width: 700px;
  margin: 0 auto 2rem;
  position: relative;
  z-index: 2;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.btn {
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 5px 15px rgba(67, 97, 238, 0.4);
}

.btn-primary:hover {
  background: var(--secondary);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(67, 97, 238, 0.6);
}

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

.btn-secondary:hover {
  background: var(--light);
  transform: translateY(-3px);
}

/* Projects Section */
section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title h2 {
  font-size: 2.5rem;
  color: var(--dark);
  margin-bottom: 1rem;
}

.section-title p {
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
}

.filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  justify-content: center;
  flex-wrap: wrap;
}

.filters button {
  background: white;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.filters button:hover,
.filters button.active {
  background: var(--primary);
  color: white;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2.5rem;
}

.project-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  position: relative;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.project-image {
  height: 220px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.project-info {
  padding: 1.5rem;
}

.project-info h3 {
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.project-info p {
  color: var(--gray);
  margin-bottom: 1rem;
  height: 4.5rem;
  overflow: hidden;
  font-size: 0.95rem;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.project-type {
  background: var(--light);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

.project-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.project-link:hover {
  color: var(--secondary);
}

/* About Section */
.about {
  background: white;
}

.about-content {
  display: flex;
  gap: 3rem;
  align-items: center;
}

.about-image {
  flex: 1;
  position: relative;
}

.about-image::before {
  content: "";
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100%;
  height: 100%;
  border: 3px solid var(--primary);
  border-radius: 10px;
  z-index: 0;
}

.about-image img {
  width: 100%;
  border-radius: 10px;
  position: relative;
  z-index: 1;
  box-shadow: var(--card-shadow);
}

.about-text {
  flex: 1;
}

.about-text h3 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--dark);
}

.about-text p {
  margin-bottom: 1.5rem;
  color: var(--gray);
  line-height: 1.8;
}

.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.skill {
  background: var(--light);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  text-decoration: none;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--secondary);
  transform: translateY(-5px);
}

/* Contact Section */
.contact {
  background: linear-gradient(
    to right,
    rgba(67, 97, 238, 0.05),
    rgba(58, 12, 163, 0.05)
  );
}

.contact-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-details h4 {
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.contact-details p,
.contact-details a {
  color: var(--gray);
  text-decoration: none;
  transition: var(--transition);
}

.contact-details a:hover {
  color: var(--primary);
}

.contact-form {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--card-shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

/* Footer */
footer {
  background: var(--dark);
  color: white;
  padding: 3rem 0 1.5rem;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--light);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
}

.copyright {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--gray);
  font-size: 0.9rem;
}

/* Responsiveness */
@media (max-width: 992px) {
  .hero h1 {
    font-size: 3rem;
  }

  .about-content {
    flex-direction: column;
  }

  .about-image::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: white;
    flex-direction: column;
    align-items: center;
    padding: 2rem 0;
    gap: 2rem;
    transition: var(--transition);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }

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

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

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

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

@media (max-width: 576px) {
  .hero h1 {
    font-size: 2rem;
  }

  .section-title h2 {
    font-size: 2rem;
  }
}