/* style.css */

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
  --primary: #4361ee;
  --secondary: #3f37c9;
  --accent: #f72585;
  --light: #f8f9fa;
  --dark: #212529;
  --white: #ffffff;
  --gray: #e9ecef;
  --error: #dc3545;
  --success: #28a745;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  font-family: 'Poppins', 'Roboto', sans-serif;
  background-color: var(--light);
  color: var(--dark);
  margin: 0;
  padding: 0;
  line-height: 1.6;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

header {
  padding: 1.5rem 2rem;
  background-color: var(--white);
  border-bottom: 1px solid var(--gray);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
  padding: 0;
  margin: 0;
}

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

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

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

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

#themeToggle {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  transition: transform 0.5s ease;
  padding: 0.5rem;
  border-radius: 50%;
  background-color: var(--gray);
}

#themeToggle:hover {
  transform: rotate(360deg);
  background-color: var(--primary);
  color: var(--white);
}

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  margin: 4rem 0;
  padding: 3rem;
  background-color: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

section:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

section h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

section h2::after {
  content: '';
  position: absolute;
  width: 70%;
  height: 4px;
  bottom: -10px;
  left: 0;
  background: linear-gradient(to right, var(--primary), var(--accent));
  border-radius: 2px;
}

.hero-container {
  text-align: center;
  padding: 4rem 0;
  position: relative;
}

.hero-container h2 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fadeIn 1s ease-in;
}

.hero-container p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 2rem;
  color: var(--secondary);
}

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

.cta-buttons {
  margin-top: 2rem;
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

.btn {
  padding: 0.8rem 2rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: bold;
  transition: var(--transition);
  display: inline-block;
  cursor: pointer;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 0.9rem;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transition: var(--transition);
  z-index: -1;
}

.btn:hover::before {
  width: 100%;
}

.primary-btn {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  border: none;
  box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.primary-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(67, 97, 238, 0.5);
}

.secondary-btn {
  background-color: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  position: relative;
  z-index: 1;
}

.secondary-btn:hover {
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(67, 97, 238, 0.3);
}

.secondary-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: var(--transition);
  z-index: -1;
}

.secondary-btn:hover::after {
  width: 100%;
}

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

.filter-btn {
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--gray);
  background-color: var(--white);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.filter-btn.active, .filter-btn:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
  transform: translateY(-2px);
}

.project-list {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

.project {
  padding: 2rem;
  border-left: 5px solid var(--primary);
  background-color: var(--gray);
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.project::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(67, 97, 238, 0.1), rgba(63, 55, 201, 0.1));
  opacity: 0;
  transition: var(--transition);
}

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

.project:hover::before {
  opacity: 1;
}

.project h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

.project-tech {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.tech-tag {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  color: var(--white);
  border-radius: 20px;
  font-size: 0.8rem;
  box-shadow: 0 2px 10px rgba(63, 55, 201, 0.2);
  transition: var(--transition);
}

.tech-tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(63, 55, 201, 0.3);
}

.hidden {
  display: none;
}

.project.hidden {
  display: none !important;
}

.cv-container {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.cv-block {
  padding: 2rem;
  border-radius: var(--radius);
  background-color: var(--gray);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border-left: 5px solid var(--primary);
}

.cv-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(67, 97, 238, 0.05), rgba(63, 55, 201, 0.05));
  opacity: 0;
  transition: var(--transition);
}

.cv-block:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.cv-block:hover::before {
  opacity: 1;
}

.cv-block h3 {
  border-bottom: 3px solid var(--primary);
  padding-bottom: 0.8rem;
  margin-bottom: 1.5rem;
  color: var(--primary);
  display: inline-block;
}

.cv-block ul {
  padding-left: 1.5rem;
}

.cv-block li {
  margin-bottom: 1rem;
}

.experience-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
}

.date {
  color: var(--secondary);
  font-size: 0.9rem;
  font-weight: 600;
  background-color: rgba(67, 97, 238, 0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
}

.skills-container ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding-left: 0;
  list-style: none;
}

.skill-badge {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  transition: var(--transition);
  box-shadow: 0 3px 10px rgba(67, 97, 238, 0.2);
}

.skill-badge:hover {
  transform: scale(1.1) translateY(-3px);
  box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.contact-container {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  justify-content: space-between;
}

.contact-info {
  flex: 1;
  min-width: 300px;
}

.contact-item {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  transition: var(--transition);
  padding: 1rem;
  border-radius: var(--radius);
}

.contact-item:hover {
  background-color: var(--gray);
  transform: translateX(5px);
}

.contact-icon {
  margin-right: 1rem;
  font-size: 1.5rem;
  color: var(--primary);
  background-color: rgba(67, 97, 238, 0.1);
  padding: 0.8rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.contact-item:hover .contact-icon {
  background-color: var(--primary);
  color: var(--white);
  transform: rotate(360deg);
}

.contact-item a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
}

.contact-item a:hover {
  color: var(--secondary);
  text-decoration: underline;
}

form {
  flex: 1;
  min-width: 350px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background-color: var(--gray);
  padding: 2rem;
  border-radius: var(--radius);
  transition: var(--transition);
}

form:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

input, textarea {
  padding: 1rem;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background-color: var(--white);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.25);
}

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

.error {
  color: var(--error);
  font-size: 0.85rem;
  margin-top: 0.3rem;
  font-weight: 500;
}

footer {
  background-color: var(--dark);
  color: var(--white);
  padding: 3rem 2rem;
  margin-top: 5rem;
  position: relative;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(to right, var(--primary), var(--accent));
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  justify-content: space-between;
}

.footer-section {
  flex: 1;
  min-width: 250px;
}

.footer-section h3 {
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.footer-section h3:after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 60px;
  height: 3px;
  background: linear-gradient(to right, var(--primary), var(--accent));
  border-radius: 2px;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section a {
  color: var(--light);
  text-decoration: none;
  display: block;
  margin-bottom: 0.8rem;
  transition: var(--transition);
  position: relative;
  padding-left: 1.2rem;
}

.footer-section a::before {
  content: '→';
  position: absolute;
  left: 0;
  transition: var(--transition);
}

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

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

.social-links {
  display: flex;
  gap: 1.5rem;
}

.social-links a {
  padding: 0.8rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  margin-top: 3rem;
  font-size: 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  color: #ccc;
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 1.5rem;
    padding: 1rem;
  }
  
  nav {
    flex-direction: column;
    width: 100%;
  }
  
  .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 100%;
  }
  
  section {
    padding: 2rem 1.5rem;
  }
  
  .footer-content, .contact-container {
    flex-direction: column;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .project-list {
    grid-template-columns: 1fr;
  }
  
  .hero-container h2 {
    font-size: 2.5rem;
  }
}

/* Dark theme styles */
body.dark-theme {
  background-color: #121212;
  color: var(--light);
}

body.dark-theme header {
  background-color: #1e1e1e;
  border-color: #333;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
}

body.dark-theme .nav-links li a {
  color: var(--light);
}

body.dark-theme section {
  background-color: #1e1e1e;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

body.dark-theme .project {
  background-color: #2a2a2a;
}

body.dark-theme .cv-block {
  background-color: #2a2a2a;
}

body.dark-theme form {
  background-color: #2a2a2a;
}

body.dark-theme input,
body.dark-theme textarea {
  background-color: #333;
  color: var(--light);
  border-color: #444;
}

body.dark-theme .filter-btn {
  background-color: #2a2a2a;
  color: var(--light);
  border-color: #444;
}

body.dark-theme .contact-item:hover {
  background-color: #2a2a2a;
}

body.dark-theme #themeToggle {
  background-color: #333;
  color: var(--light);
}

body.dark-theme .date {
  background-color: rgba(67, 97, 238, 0.2);
}