:root {
  --primary: #2563eb;
  --primary-light: #468ef7;
  --text: #222e3a;
  --text-light: #5a6a85;
  --bg: #f7f9fc;
  --bg-secondary: #eef2f6;
  --border: #d3dae6;
  --shadow: 0 4px 12px -2px rgba(34, 46, 58, 0.08);
}

 [data-theme="dark"] {
  --primary: #468ef7;
  --primary-light: #2563eb;
  --text: #e3e6ea;
  --text-light: #a3adc2;
  --bg: #181a20;
  --bg-secondary: #232733;
  --border: #2c3140;
  --shadow: 0 4px 12px -2px rgba(34, 46, 58, 0.25);
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background-color: var(--bg);
  transition: background-color 0.3s, color 0.3s;
}

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

header {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#theme-toggle {
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: background-color 0.2s;
}

#theme-toggle:hover {
  background-color: var(--bg-secondary);
}

#hero {
  text-align: center;
  padding: 80px 0;
}

.avatar {
  width: 150px;
  height: 150px;
  margin: 0 auto 30px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--primary);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tagline {
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 20px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 30px;
}

.btn {
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}

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

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

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

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

.section-title {
  text-align: center;
  margin-bottom: 50px;
  font-size: 2rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background-color: var(--primary);
}

.section-bg {
  background-color: var(--bg-secondary);
  padding: 80px 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

@media (min-width: 768px) {
  .skills-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.skill-category h3 {
  margin-bottom: 20px;
  font-size: 1.3rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-tags span {
  background-color: var(--primary-light);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.9rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.project-card {
  background-color: var(--bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform 0.3s;
}

.project-card:hover {
  transform: translateY(-5px);
}

.project-image {
  height: 200px;
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

.project-content {
  padding: 20px;
}

.project-content h3 {
  margin-bottom: 10px;
}

.project-content p {
  color: var(--text-light);
  margin-bottom: 15px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 15px;
}

.tech-tags span {
  background-color: var(--bg-secondary);
  color: var(--primary);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
}

.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-badge.in-development {
  background-color: #fef3c7;
  color: #92400e;
}

[data-theme="dark"] .status-badge.in-development {
  background-color: #92400e;
  color: #fef3c7;
}

.education-card {
  background-color: var(--bg);
  padding: 30px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  max-width: 600px;
  margin: 0 auto;
  transition: box-shadow 0.3s;
}

.education-card h3 {
  margin-bottom: 10px;
}

.institution, .college {
  color: var(--text-light);
  margin-bottom: 5px;
}

.duration {
  color: var(--primary);
  font-weight: 600;
  margin-top: 10px;
}

#contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background-color: var(--bg);
  color: var(--text);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

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

#form-message {
  margin-top: 20px;
  padding: 10px;
  border-radius: 6px;
  display: none;
}

#form-message.success {
  background-color: #d1fae5;
  color: #065f46;
  display: block;
}

#form-message.error {
  background-color: #fee2e2;
  color: #b91c1c;
  display: block;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.social-links a {
  color: var(--text);
  font-size: 1.5rem;
  transition: color 0.2s;
}

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

footer {
  text-align: center;
  padding: 30px 0;
  border-top: 1px solid var(--border);
  margin-top: 60px;
}

/* Navbar styles */
.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.navbar-brand h1 {
  font-size: 1.7rem;
  font-weight: 700;
  margin-right: 30px;
}

.navbar {
  flex: 1;
}

.navbar ul {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
  justify-content: flex-end;
}

.navbar ul li a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.05rem;
  padding: 8px 14px;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}

.navbar ul li a:hover {
  background: var(--primary-light);
  color: #fff;
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: 18px;
}

.navbar-toggle .bar {
  display: block;
  width: 24px;
  height: 3px;
  margin: 4px 0;
  background-color: var(--text);
  border-radius: 2px;
  transition: 0.3s;
}

@media (max-width: 900px) {
  .navbar ul {
    gap: 18px;
  }
}

@media (max-width: 700px) {
  .navbar ul {
    flex-direction: column;
    position: absolute;
    top: 60px;
    right: 0;
    background: var(--bg);
    box-shadow: 0 8px 32px -8px rgba(34,46,58,0.12);
    border-radius: 0 0 12px 12px;
    width: 180px;
    padding: 18px 0;
    display: none;
    z-index: 100;
  }
  .navbar ul.active {
    display: flex;
  }
  .navbar-toggle {
    display: flex;
  }
  .navbar {
    position: relative;
  }
}

@media (max-width: 500px) {
  .navbar-brand h1 {
    font-size: 1.1rem;
    margin-right: 10px;
  }
  .navbar ul {
    width: 100vw;
    right: -20px;
    top: 50px;
    border-radius: 0 0 18px 18px;
  }
}

/* Contact split layout */
.contact-split {
  display: flex;
  gap: 48px;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 60px;
}

.contact-info {
  flex: 1 1 320px;
  max-width: 420px;
  padding-right: 16px;
}

.contact-label {
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 12px;
  display: block;
}

.contact-title {
  font-size: 2.7rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.contact-desc {
  color: var(--text-light);
  font-size: 1.15rem;
  margin-bottom: 32px;
}

.contact-details {
  margin-bottom: 32px;
}

.contact-detail {
  margin-bottom: 18px;
}

.contact-detail-label {
  font-size: 1.1rem;
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

.contact-detail-value {
  color: var(--text-light);
  font-size: 1.05rem;
}

.contact-social {
  display: flex;
  gap: 24px;
  margin-top: 18px;
}

.contact-social a {
  color: var(--text-light);
  font-size: 2.2rem;
  transition: color 0.2s;
}

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

.contact-form {
  flex: 1 1 320px;
  max-width: 480px;
  background: none;
  padding-left: 16px;
}

.contact-form .form-group label {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-form .form-group input,
.contact-form .form-group textarea {
  background-color: var(--bg-secondary);
  color: var(--text);
  border-radius: 12px;
  border: none;
  font-size: 1.05rem;
  padding: 14px 18px;
  margin-bottom: 18px;
  box-shadow: 0 2px 8px -2px rgba(34,46,58,0.06);
  transition: box-shadow 0.2s, background 0.2s;
}

.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus {
  outline: none;
  box-shadow: 0 4px 16px -4px var(--primary-light);
  background: var(--bg);
}

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

@media (max-width: 900px) {
  .contact-split {
    flex-direction: column;
    gap: 32px;
    margin-top: 40px;
  }
  .contact-info, .contact-form {
    max-width: 100%;
    padding: 0;
  }
}