/* variables */
:root {
  /* Colors */
  --primary-color: #ffcd42;
  --secondary-color: #ffd35c;
  --bg-primary: #ffffff;
  --text-color: #222222;
  --text-color-two: #ffffff;
  --bg-secondary: #000000;
  --card-background: #f4f4f4;
  --bg-secondary-two: #111111;
  --background-color: #ffffff;
  --text-muted: #666666;
  --accent-color: #4a90e2;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --error-color: #dc3545;
  --border-color: rgba(0, 0, 0, 0.1);
  --hover-color: rgba(0, 0, 0, 0.05);

  --shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  --shadow-light: 0 5px 15px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 15px 50px rgba(0, 0, 0, 0.3);

  /* Font Weight */
  --weight-small: 400;
  --weight-semibold: 600;
  --weight-bold: 800;

  /* Max width */
  --width-small: 600px;
  --width-medium: 1100px;
  --width-large: 1300px;

  /* Border radius */
  --radius-small: 8px;
  --radius-medium: 12px;
  --radius-large: 20px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

[data-theme="dark"] {
  --primary-color: #ffcd42;
  --secondary-color: #ffd35c;
  --bg-primary: #0a0a0a;
  --text-color: #ffffff;
  --text-color-two: #222222;
  --bg-secondary: #ffffff;
  --card-background: #1a1a1a;
  --bg-secondary-two: #f4f4f4;
  --background-color: #0a0a0a;
  --text-muted: #999999;
  --accent-color: #60a5fa;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --border-color: rgba(255, 255, 255, 0.12);
  --hover-color: rgba(255, 255, 255, 0.06);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.5);
}

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

/* Reset default styling */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

ul {
  list-style: none;
}

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

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

/* Main styling */
body {
  background: var(--bg-primary);
  color: var(--text-color);
  font-family: "Raleway", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: var(--width-large);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Section spacing */
section {
  padding: 3rem 0;
}

.division {
  width: 100%;
  height: 1px;
  background: var(--primary-color);
  margin: 2rem 0;
  opacity: 0.3;
}

/* Content text styling */
.content-text {
  text-align: center;
  margin-bottom: 3rem;
}

.content-text h2 {
  font-size: 2.5rem;
  font-weight: var(--weight-bold);
  margin-bottom: 1rem;
  color: var(--text-color);
}

.content-text p {
  font-size: 1.1rem;
  color: var(--text-color);
  opacity: 0.8;
  max-width: 600px;
  margin: 0 auto;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition-medium);
  border: none;
  border-bottom: none;
}

[data-theme="dark"] .navbar {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border: none;
  border-bottom: none;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 20;
  height: 80px;
  width: 100%;
  border: none;
  border-bottom: none;
}

.navbar .nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  border: none;
  border-bottom: none;
}

.navbar .nav-link {
  font-weight: var(--weight-semibold);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition-fast);
}

.navbar .nav-link:hover {
  color: var(--primary-color);
}

.navbar #logo {
  display: flex;
  align-items: center;
  margin-right: 2rem;
  border: none;
  outline: none;
}

.navbar #logo .logo-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
  border: none;
  outline: none;
}

.navbar #logo a {
  border: none;
  outline: none;
  text-decoration: none;
}

.navbar #logo .logo-name {
  font-size: 1.2rem;
  font-weight: var(--weight-bold);
  color: var(--text-color);
  margin-bottom: 2px;
  white-space: nowrap;
}

.navbar #logo .logo-subtitle {
  font-size: 0.8rem;
  font-weight: var(--weight-semibold);
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.navbar .btn {
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius-small);
  font-weight: var(--weight-semibold);
  transition: var(--transition-medium);
}

.navbar .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.fas.fa-arrow-right {
  margin-left: 0.5rem;
  transition: var(--transition-fast);
}

.navbar .btn:hover .fas.fa-arrow-right {
  transform: translateX(3px);
}

/* Hamburger menu */
.hamburger {
  display: none;
  cursor: pointer;
  border: none;
  background: transparent;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 10px;
  line-height: 0;
  transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
  align-items: center;
  justify-content: center;
}

.hamburger:hover {
  background-color: var(--hover-color);
}

[data-theme="dark"] .hamburger:hover {
  background-color: rgba(255, 255, 255, 0.06);
}

.hamburger:active {
  transform: scale(0.98);
}

.bar {
  display: block;
  width: 22px;
  height: 2px;
  margin: 4px auto;
  transition: var(--transition-fast);
  background-color: var(--text-color);
  border-radius: 2px;
}

/* Hero section */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 0 40px 0;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--card-background) 100%);
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(255, 205, 66, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(74, 144, 226, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.profile-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  margin-bottom: 2rem;
  border: 4px solid var(--primary-color);
}

.header-container h1 {
  font-size: 3rem;
  font-weight: var(--weight-bold);
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-container .content-text h2 {
  font-size: 2.5rem;
  font-weight: var(--weight-bold);
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.header-container .content-text p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* About Section */
.about-container {
  background: var(--bg-primary);
  padding: 2rem 0;
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text h3 {
  font-size: 1.8rem;
  font-weight: var(--weight-bold);
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

.about-text p {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  line-height: 1.8;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.stat-item h4 {
  font-size: 2.5rem;
  font-weight: var(--weight-bold);
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-item p {
  font-size: 1rem;
  font-weight: var(--weight-semibold);
  color: var(--text-color);
}

/* Skills Section */
.skills-container {
  background: var(--bg-primary);
}

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

.skill-category {
  background: var(--card-background);
  padding: 2rem;
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.skill-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.skill-category:hover::before {
  transform: scaleX(1);
}

.skill-category:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  background: var(--bg-primary);
}

.skill-category h3 {
  font-size: 1.5rem;
  font-weight: var(--weight-bold);
  margin-bottom: 1.5rem;
  color: var(--primary-color);
  text-align: center;
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
}

.skill-item {
  background: var(--bg-primary);
  color: var(--text-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-small);
  font-size: 0.9rem;
  font-weight: var(--weight-semibold);
  border: 2px solid var(--primary-color);
  transition: var(--transition-fast);
}

.skill-item:hover {
  background: var(--primary-color);
  color: var(--text-color-two);
  transform: scale(1.05);
}

/* Projects Section */
#projects {
  background: var(--card-background);
}

#projects .btn {
  display: block;
  margin: 3rem auto 0;
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.project {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--card-background);
  border-radius: var(--radius-medium);
  padding: 2rem;
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-color);
  background: var(--bg-primary);
}

.project-info {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
}

.project-bio h3 {
  font-size: 1.3rem;
  font-weight: var(--weight-bold);
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.project-bio p {
  font-size: 0.9rem;
  color: var(--primary-color);
  font-weight: var(--weight-semibold);
  margin-bottom: 0.5rem;
}

.project-description {
  font-size: 0.9rem;
  color: var(--text-color);
  opacity: 0.8;
  line-height: 1.6;
  margin-top: 1rem;
}

.project-link {
  display: flex;
  gap: 1rem;
}

.project-link a {
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  color: var(--text-color-two);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-medium);
}

.project-link a:hover {
  background: var(--accent-color);
  transform: scale(1.1);
}

/* Contact Section */
.contact-container {
  background: var(--bg-primary);
}

.contact-content {
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact-info {
  text-align: center;
}

.contact-info h3 {
  font-size: 1.8rem;
  font-weight: var(--weight-bold);
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.contact-info p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--card-background);
  border-radius: var(--radius-small);
  transition: var(--transition-medium);
}

.contact-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-light);
}

.contact-item i {
  color: var(--primary-color);
  font-size: 1.2rem;
  width: 20px;
}

.contact-item span {
  font-weight: var(--weight-semibold);
}

.contact-cta {
  margin-top: 2rem;
  text-align: center;
}

.contact-cta .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: var(--weight-semibold);
  transition: var(--transition-medium);
}

.contact-cta .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* Contact Form */
.contact-form {
  background: var(--card-background);
  padding: 2rem;
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-light);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid transparent;
  border-radius: var(--radius-small);
  background: var(--bg-primary);
  color: var(--text-color);
  font-size: 1rem;
  transition: var(--transition-medium);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(255, 205, 66, 0.1);
}

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

.contact-form .btn {
  width: 100%;
  padding: 1rem;
  font-size: 1.1rem;
  font-weight: var(--weight-semibold);
}

/* Education Section */
.education-container {
  padding: 4rem 0;
  background: var(--background-color);
}

.education-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.education-item {
  display: flex;
  gap: 2rem;
  background: var(--card-background);
  padding: 2rem;
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
}

.education-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.education-logo {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  border-radius: var(--radius-medium);
  overflow: hidden;
  background: var(--background-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.education-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.education-info h3 {
  color: var(--text-color);
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.degree {
  color: var(--primary-color);
  font-weight: var(--weight-semibold);
  margin-bottom: 0.5rem;
}

.duration {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.description {
  color: var(--text-color);
  line-height: 1.6;
}

/* Experience Section */
.experience-container {
  padding: 4rem 0;
  background: var(--background-color);
}

.experience-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.experience-item {
  display: flex;
  gap: 2rem;
  background: var(--card-background);
  padding: 2rem;
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
}

.experience-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.experience-logo {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  border-radius: var(--radius-medium);
  overflow: hidden;
  background: var(--background-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.experience-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.experience-info h3 {
  color: var(--text-color);
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.position {
  color: var(--primary-color);
  font-weight: var(--weight-semibold);
  margin-bottom: 0.5rem;
}

.duration {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.description {
  color: var(--text-color);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.experience-bullets {
  margin-top: 1rem;
  padding-left: 1.5rem;
}

.experience-bullets li {
  color: var(--text-color);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

/* Achievements Section */
.achievements-container {
  padding: 4rem 0;
  background: var(--background-color);
}

.achievements-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.achievement-item {
  display: flex;
  gap: 2rem;
  background: var(--card-background);
  padding: 2rem;
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
}

.achievement-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.achievement-logo {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  border-radius: var(--radius-medium);
  overflow: hidden;
  background: var(--background-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.achievement-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.achievement-info h3 {
  color: var(--text-color);
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.achievement-info p {
  color: var(--text-color);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.certificate-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.certificate-links a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: var(--weight-semibold);
  padding: 0.5rem 1rem;
  border: 2px solid var(--primary-color);
  border-radius: var(--radius-small);
  transition: var(--transition-medium);
}

.certificate-links a:hover {
  background: var(--primary-color);
  color: var(--text-color-two);
}

.achievement-info a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: var(--weight-semibold);
  transition: var(--transition-medium);
}

.achievement-info a:hover {
  color: var(--accent-color);
}

/* Footer */
#footer {
  background: var(--bg-secondary);
  color: var(--text-color-two);
  padding: 4rem 0 3rem;
  text-align: center;
  margin-top: 2rem;
}

#footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

#footer a {
  color: var(--text-color-two);
  font-size: 1.1rem;
  font-weight: var(--weight-semibold);
}

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

#footer .social {
  display: flex;
  gap: 1.5rem;
}

#footer .social i {
  font-size: 20px;
  color: var(--text-color);
  transition: var(--transition-medium);
}

#footer .social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background: var(--card-background);
  border-radius: 50%;
  transition: var(--transition-medium);
}

#footer .social a:hover {
  background: var(--primary-color);
  transform: translateY(-3px);
}

#footer .social a:hover i {
  color: var(--text-color-two);
}

#footer p {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border: none;
  border-radius: var(--radius-small);
  font-size: 1rem;
  font-weight: var(--weight-semibold);
  text-align: center;
  cursor: pointer;
  transition: var(--transition-medium);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background: var(--primary-color);
  color: var(--text-color-two);
}

.btn-primary:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover {
  background: var(--primary-color);
  color: var(--text-color-two);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* Theme Switch */
.theme-switch {
  position: relative;
  display: inline-block;
  margin-left: 1rem;
}

.theme-toggle-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.theme-toggle-btn:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .theme-toggle-btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.theme-toggle-btn i {
  font-size: 18px;
  color: var(--text-color);
}

/* Responsive Design */
@media (max-width: 1000px) {
  .project {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .contact-content {
    max-width: 500px;
  }

  .education-item,
  .experience-item,
  .achievement-item {
    flex-direction: column;
    text-align: center;
  }

  .education-logo,
  .experience-logo,
  .achievement-logo {
    margin: 0 auto 1rem;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .content-text h2 {
    font-size: 2rem;
  }
  
  .header-container h1 {
    font-size: 2.5rem;
  }
  
  .header-container .content-text h2 {
    font-size: 2rem;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .navbar #logo .logo-name {
    font-size: 1rem;
  }
  
  .navbar #logo .logo-subtitle {
    font-size: 0.7rem;
  }
}

@media (max-width: 670px) {
  .navbar .nav-menu {
    position: fixed;
    left: -100%;
    top: 80px;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    width: 100%;
    text-align: center;
    transition: var(--transition-medium);
    box-shadow: var(--shadow);
    padding: 2rem 0;
  }

  [data-theme="dark"] .navbar .nav-menu {
    background-color: rgba(10, 10, 10, 0.98);
  }

  .navbar .btn {
    margin-top: 1rem;
  }

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

  .nav-menu .nav-link {
    margin: 1rem 0;
    font-size: 1.1rem;
  }

  .nav-menu li {
    margin: 1rem 0;
  }

  .nav-menu .btn {
    margin: 1rem auto;
  }

  .nav-menu .theme-switch {
    margin: 1rem auto;
  }

  .hamburger {
    display: inline-flex;
  }

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

  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}

@media (max-width: 600px) {
  .project {
    grid-template-columns: 1fr;
  }
  
  .header-container .btn {
    padding: 0.8rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .about-stats {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .stat-item {
    flex: 1;
    min-width: 120px;
  }
  
  .contact-details {
    gap: 0.5rem;
  }
  
  .contact-item {
    padding: 0.8rem;
  }
  
  .navbar #logo .logo-name {
    font-size: 0.9rem;
  }
  
  .navbar #logo .logo-subtitle {
    font-size: 0.6rem;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling for anchor links */
html {
  scroll-padding-top: 100px;
}

/* Focus styles for accessibility */
button:focus,
input:focus,
textarea:focus,
a:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Skip link utility */
.visually-hidden-focusable {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.visually-hidden-focusable:focus {
  position: static;
  width: auto;
  height: auto;
  margin: 1rem;
  padding: 0.5rem 1rem;
  background: var(--primary-color);
  color: var(--text-color-two);
  border-radius: var(--radius-small);
  box-shadow: var(--shadow-light);
}

/* Loading animation */
.loading {
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-medium);
}

.loading.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* Loading and Error States */
.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  text-align: center;
}

.loading-spinner i {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.loading-spinner p {
  color: var(--text-color);
  opacity: 0.8;
}

.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  text-align: center;
}

.error-state i {
  font-size: 3rem;
  color: var(--error-color);
  margin-bottom: 1rem;
}

.error-state h3 {
  color: var(--text-color);
  margin-bottom: 1rem;
}

.error-state p {
  color: var(--text-color);
  opacity: 0.8;
  margin-bottom: 2rem;
}

/* Project Topics */
.project-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.topic-tag {
  background: var(--primary-color);
  color: var(--text-color-two);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-small);
  font-size: 0.8rem;
  font-weight: var(--weight-semibold);
}