/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #f4f7fa;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Header Styles */
header {
  background: linear-gradient(135deg, #2c3e50, #34495e);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 30px;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.logo-title {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 1;
}

.logo-title a {
  text-decoration: none;
  display: inline-block;
  line-height: 0;
}

.logo {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: block;
}

.logo:hover {
  transform: scale(1.1);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.title-text h1 {
  font-size: 26px;
  font-weight: 700;
  margin: 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  letter-spacing: 0.5px;
}

.title-text p {
  font-size: 16px;
  margin: 2px 0 0 0;
  opacity: 0.9;
  font-weight: 400;
}

nav {
  display: flex;
  align-items: center;
  gap: 25px;
}

.nav-container {
  position: relative;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 4px;
  transition: background-color 0.3s ease;
  width: 40px;
  height: 40px;
}

.mobile-menu-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background-color: white;
  margin: 3px 0;
  transition: all 0.3s ease;
  transform-origin: center;
  display: block;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 25px;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  padding: 8px 16px;
  border-radius: 25px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-menu a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  padding: 8px 16px;
  border-radius: 25px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

nav a::before,
.nav-menu a::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}

nav a:hover::before,
.nav-menu a:hover::before {
  left: 100%;
}

nav a:hover,
.nav-menu a:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

nav a:active,
.nav-menu a:active {
  transform: translateY(0);
}

/* Main Content */
main {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 48px 16px;
}

.cards-container {
  width: 100%;
  max-width: 672px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

/* Large screen grid layout */
@media (min-width: 1200px) {
  .cards-container {
    max-width: 1200px;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

/* Desktop grid layout */
@media (min-width: 1025px) and (max-width: 1199px) {
  .cards-container {
    max-width: 1000px;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

/* Cards */
.card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-decoration: none;
  transition: all 0.3s ease;
  border-left: 4px solid;
  min-height: 60px;
  cursor: pointer;
}

.card:hover {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  transform: scale(1.02);
}

/* Touch device improvements */
@media (hover: none) and (pointer: coarse) {
  .card:hover {
    transform: none;
  }
  
  .card:active {
    transform: scale(0.98);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.12);
  }
}

.card-blue {
  border-left-color: #2563eb;
}
.card-green {
  border-left-color: #059669;
}
.card-yellow {
  border-left-color: #eab308;
}
.card-purple {
  border-left-color: #7c3aed;
}

/* Card Hover Color Effects */
.card-blue:hover {
  background-color: #eff6ff;
  border-left-color: #1d4ed8;
}

.card-green:hover {
  background-color: #ecfdf5;
  border-left-color: #047857;
}

.card-yellow:hover {
  background-color: #fffbeb;
  border-left-color: #d97706;
}

.card-purple:hover {
  background-color: #f5f3ff;
  border-left-color: #6d28d9;
}

.card-icon {
  padding: 12px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-blue {
  background-color: #dbeafe;
  color: #2563eb;
}
.icon-green {
  background-color: #d1fae5;
  color: #059669;
}
.icon-yellow {
  background-color: #fef3c7;
  color: #d97706;
}

.card-title {
  font-size: clamp(18px, 2.5vw, 20px);
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 4px;
  line-height: 1.2;
}

/* Icons */
.icon {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

/* Footer Styles */
footer {
  background: linear-gradient(135deg, #2c3e50, #34495e);
  color: white;
  text-align: center;
  padding: 10px 20px;
  margin-top: auto;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: bold;
}

.footer-logo span {
  font-size: 25px;
}

.footer-content p {
  font-size: 16px;
  gap: 0;
  margin-top: -10px;
}

.footer-logo img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.footer-links {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: #ecf0f1;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease, transform 0.3s ease;
  position: relative;
}

.footer-links a:hover {
  color: #3498db;
  transform: translateY(-2px);
}

.footer-links a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 50%;
  background: #3498db;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

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

.footer-bottom {
  font-size: 14px;
  color: #bdc3c7;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Contributors Page Styles */
.contributors-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

.contributors-header {
  text-align: center;
  margin-bottom: 48px;
}

.contributors-header h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #2c3e50, #34495e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contributors-header p {
  font-size: clamp(16px, 2.5vw, 20px);
  color: #6b7280;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Contributor Card Styles */
.contributor-card {
  flex-direction: column;
  align-items: flex-start;
  padding: 24px;
  min-height: auto;
  position: relative;
}

.contributor-photo {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}

.contributor-img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #e5e7eb;
  transition: all 0.3s ease;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.contributor-img:hover {
  transform: scale(1.05);
  border-color: #3b82f6;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.contributor-card .card-content {
  width: 100%;
  margin: 0;
  text-align: center;
}

.contributor-role {
  font-size: 14px;
  font-weight: 600;
  color: #6b7280;
  margin: 4px 0 2px 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contributor-company {
  font-size: 13px;
  font-weight: 500;
  color: #3b82f6;
  margin: 2px 0 8px 0;
  font-style: italic;
}

.contributor-description {
  font-size: 15px;
  color: #4b5563;
  line-height: 1.5;
  margin: 0;
}

.contributor-links {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  justify-content: center;
  width: 100%;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-link.github {
  background-color: #f3f4f6;
  color: #374151;
}

.social-link.github:hover {
  background-color: #374151;
  color: white;
  transform: translateY(-2px);
}

.social-link.linkedin {
  background-color: #dbeafe;
  color: #0ea5e9;
}

.social-link.linkedin:hover {
  background-color: #0ea5e9;
  color: white;
  transform: translateY(-2px);
}

.social-icon {
  width: 20px;
  height: 20px;
}

/* Project Info Section */
.project-info {
  margin-top: 48px;
}

.project-info .card {
  flex-direction: column;
  align-items: flex-start;
  padding: 32px;
  text-align: left;
}

.project-info .card-content {
  margin-top: 16px;
}

.project-info .contributor-description {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tech-badge {
  background: linear-gradient(135deg, #2c3e50, #34495e);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Responsive styles for contributors page */
@media (min-width: 769px) {
  .contributors-container .cards-container {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1024px) {
  .contributors-container {
    max-width: 800px;
  }
  
  .contributors-header {
    margin-bottom: 36px;
  }
  
  .contributor-card {
    padding: 20px;
  }
  
  .contributor-img {
    width: 100px;
    height: 100px;
  }
  
  .project-info {
    margin-top: 36px;
  }
  
  .project-info .card {
    padding: 24px;
  }
}

@media (max-width: 768px) {
  .contributors-container {
    padding: 0 12px;
  }
  
  .contributors-header {
    margin-bottom: 24px;
  }
  
  .contributor-card {
    padding: 18px;
  }
  
  .contributor-img {
    width: 90px;
    height: 90px;
  }
  
  .contributor-links {
    margin-top: 12px;
  }
  
  .social-link {
    width: 36px;
    height: 36px;
  }
  
  .social-icon {
    width: 18px;
    height: 18px;
  }
  
  .project-info {
    margin-top: 24px;
  }
  
  .project-info .card {
    padding: 20px;
  }
  
  .tech-stack {
    gap: 6px;
  }
  
  .tech-badge {
    padding: 4px 8px;
    font-size: 11px;
  }
}

@media (max-width: 480px) {
  .contributor-card {
    padding: 16px;
  }
  
  .contributor-img {
    width: 70px;
    height: 70px;
  }
  
  .contributor-role {
    font-size: 13px;
  }
  
  .contributor-company {
    font-size: 12px;
  }
  
  .contributor-description {
    font-size: 14px;
  }
  
  .social-link {
    width: 32px;
    height: 32px;
  }
  
  .social-icon {
    width: 16px;
    height: 16px;
  }
  
  .project-info .card {
    padding: 18px;
  }
  
  .project-info .contributor-description {
    font-size: 15px;
  }
}

/* Tablet responsive styles */
@media (max-width: 1024px) {
  header {
    padding: 15px 20px;
  }

  .logo {
    width: 55px;
    height: 55px;
  }

  .title-text h1 {
    font-size: 24px;
  }

  .title-text p {
    font-size: 15px;
  }

  .nav-menu {
    gap: 20px;
  }

  .nav-menu a {
    font-size: 15px;
    padding: 6px 12px;
  }
}

/* Mobile responsive styles */
@media (max-width: 768px) {
  header {
    padding: 15px 20px;
    position: relative;
  }

  .logo-title {
    justify-content: flex-start;
    text-align: left;
    flex: 1;
    padding-right: 60px; /* Make space for hamburger button */
  }

  .logo {
    width: 50px;
    height: 50px;
  }

  .title-text h1 {
    font-size: 20px;
  }

  .title-text p {
    font-size: 13px;
  }

  .mobile-menu-toggle {
    display: flex;
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: linear-gradient(135deg, #34495e, #2c3e50);
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    flex-direction: column;
    gap: 8px;
    min-width: 150px;
    z-index: 1000;
    margin-top: 10px;
  }

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

  .nav-menu a {
    font-size: 14px;
    padding: 8px 12px;
    text-align: center;
    white-space: nowrap;
  }

  footer {
    padding: 20px 15px;
  }

  .footer-content {
    gap: 10px;
  }

  .footer-logo {
    font-size: 16px;
  }

  .footer-logo img {
    width: 35px;
    height: 35px;
  }

  .footer-content p {
    font-size: 14px;
  }

  .footer-bottom {
    font-size: 12px;
    gap: 8px;
  }
}

/* Small mobile responsive styles */
@media (max-width: 480px) {
  header {
    padding: 12px 15px;
  }

  .logo-title {
    padding-right: 50px;
  }

  .mobile-menu-toggle {
    right: 5px;
    width: 36px;
    height: 36px;
    top: -10px;
  }

  .hamburger-line {
    width: 20px;
  }

  .logo {
    width: 45px;
    height: 45px;
  }

  .title-text h1 {
    font-size: 18px;
  }

  .title-text p {
    font-size: 12px;
  }

  .nav-menu {
    right: -5px;
    min-width: 140px;
  }

  .nav-menu a {
    font-size: 13px;
    padding: 6px 10px;
    min-height: 36px;
  }

  main {
    padding: 20px 12px;
  }

  .cards-container {
    gap: 12px;
  }

  .card {
    padding: 14px;
    gap: 10px;
    min-height: 56px;
  }

  .card-title {
    font-size: 15px;
  }

  .card-icon {
    padding: 8px;
  }

  .icon {
    width: 18px;
    height: 18px;
  }
}

/* Additional tablet responsive styles */
@media (max-width: 1024px) and (min-width: 769px) {
  .cards-container {
    max-width: 600px;
    gap: 20px;
  }

  .card {
    padding: 18px;
  }

  .card-title {
    font-size: 17px;
  }

  .card-icon {
    padding: 10px;
  }

  .icon {
    width: 20px;
    height: 20px;
  }
}