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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: white;
  min-height: 100vh;
  margin: 0;
  padding: 0;
}

.navbar {
  background: linear-gradient(135deg, #3b9cf0 0%, #5ba7f2 100%);
  padding: 1rem 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

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

.auth-buttons {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.login-btn {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.login-btn:hover {
  color: white;
  background: rgba(255, 255, 255, 0.1);
}

.signup-btn {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 0.5rem 1.2rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.signup-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
}

.logo {
  color: white;
  font-size: 1.8rem;
  font-weight: bold;
  text-decoration: none;
  font-family: "Georgia", serif;
  font-style: italic;
}

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

.nav-links a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: 5px;
}

.nav-links a:hover {
  color: white;
  background: rgba(255, 255, 255, 0.1);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 5px;
  transition: background 0.3s ease;
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.1);
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: white;
  margin: 3px 0;
  transition: all 0.3s ease;
  border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: linear-gradient(135deg, #3b9cf0 0%, #5ba7f2 100%);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
  transform: translateY(-10px);
  opacity: 0;
  transition: all 0.3s ease;
}

.mobile-nav.active {
  display: block;
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav ul {
  list-style: none;
  padding: 1rem 0;
}

.mobile-nav a {
  display: block;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  padding: 1rem 2rem;
  font-weight: 500;
  transition: all 0.3s ease;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  padding-left: 2.5rem;
}

.main-content {
  padding: 2rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.header {
  text-align: center;
  margin-bottom: 3rem;
}

.button-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.tab-button {
  padding: 1rem 3rem;
  font-size: 1.1rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  background: #f8f9fa;
  color: #333;
  border: 2px solid #e9ecef;
  min-width: 180px;
}

.tab-button:hover {
  background: #e9ecef;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.tab-button.active {
  background: linear-gradient(135deg, #3b9cf0, #5ba7f2);
  color: white;
  border-color: #3b9cf0;
}

.cards-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  opacity: 0;
  animation: fadeIn 0.6s ease forwards;
}

.cards-section {
  margin-top: 1rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.section-title {
  color: #333;
  font-size: 1.8rem;
  font-weight: 600;
  margin: 0;
  text-align: left;
}

.card-filter {
  background: white;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: #333;
  cursor: pointer;
  transition: all 0.3s ease;
  min-width: 140px;
}

.card-filter:hover {
  border-color: #3b9cf0;
  box-shadow: 0 2px 8px rgba(59, 156, 240, 0.15);
}

.card-filter:focus {
  outline: none;
  border-color: #3b9cf0;
  box-shadow: 0 0 0 3px rgba(59, 156, 240, 0.1);
}

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

.card-container {
  background: white;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  position: relative;
  width: 280px;
  height: 520px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.card-container:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.card-image-wrapper {
  position: relative;
  margin-bottom: 1.5rem;
  flex-shrink: 0;
}

.trading-card {
  background: linear-gradient(145deg, #ffffff, #f8f9fa);
  border-radius: 12px;
  padding: 0;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  transition: all 0.4s ease;
  overflow: hidden;
  position: relative;
  border: 3px solid #e1e8ed;
  aspect-ratio: 2.5/3.5;
  width: 100%;
  height: 300px;
  cursor: pointer;
}

.trading-card:hover {
  transform: rotateY(8deg) rotateX(5deg);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.25);
  border-color: #667eea;
}

.card-border {
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
  border: 2px solid #667eea;
  border-radius: 8px;
  pointer-events: none;
}

.card-number {
  position: absolute;
  top: 12px;
  right: 12px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: bold;
  z-index: 3;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.card-header-band {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 0.5rem;
  text-align: center;
  font-weight: bold;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.card-image {
  position: relative;
  height: 140px;
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: 0.5rem;
  border-radius: 6px;
  border: 2px solid #dee2e6;
}

.card-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
  border-radius: 4px;
}

.trading-card:hover .card-photo {
  transform: scale(1.05);
}

.card-team-logo {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(255, 255, 255, 0.95);
  color: #667eea;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.7rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  border: 2px solid #667eea;
}

.card-name-on-card {
  position: absolute;
  bottom: 8px;
  left: 8px;
  right: 8px;
  background: rgba(255, 255, 255, 0.95);
  color: #2c3e50;
  padding: 0.5rem;
  text-align: center;
  font-weight: bold;
  font-size: 0.8rem;
  border-radius: 4px;
  backdrop-filter: blur(10px);
}

.card-vintage-corners {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid #667eea;
}

.card-vintage-corners.top-left {
  top: 12px;
  left: 12px;
  border-right: none;
  border-bottom: none;
}

.card-vintage-corners.top-right {
  top: 12px;
  right: 12px;
  border-left: none;
  border-bottom: none;
}

.card-vintage-corners.bottom-left {
  bottom: 12px;
  left: 12px;
  border-right: none;
  border-top: none;
}

.card-vintage-corners.bottom-right {
  bottom: 12px;
  right: 12px;
  border-left: none;
  border-top: none;
}

.card-info {
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-pricing {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 1rem;
  padding: 1rem;
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border-radius: 10px;
  border: 1px solid #dee2e6;
  flex-shrink: 0;
}

.price-info {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.current-price {
  font-size: 1.2rem;
  font-weight: bold;
  color: #28a745;
  margin-bottom: 0.25rem;
}

.availability {
  font-size: 0.75rem;
  color: #dc3545;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.buy-button {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, #3b9cf0, #5ba7f2);
  color: white;
  border: none;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 15px rgba(59, 156, 240, 0.3);
  flex-shrink: 0;
}

.buy-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 156, 240, 0.4);
  background: linear-gradient(135deg, #5ba7f2, #3b9cf0);
}

.title {
  color: #333;
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  text-shadow: none;
}

.subtitle {
  color: #666;
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

@media (max-width: 1024px) {
  .cards-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .title {
    font-size: 2rem;
  }

  .nav-links {
    display: none;
  }

  .auth-buttons {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .main-content {
    padding: 1rem;
  }

  .cards-container {
    grid-template-columns: 1fr;
  }

  .button-group {
    flex-direction: column;
    align-items: center;
  }

  .tab-button {
    min-width: 200px;
  }

  .section-header {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
  }

  .card-filter {
    width: 60%;
    max-width: 200px;
  }
}

.mobile-auth {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1rem;
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-auth a {
  margin: 0;
  padding: 0.75rem 2rem;
  text-align: center;
}

.mobile-signup {
  background: rgba(255, 255, 255, 0.2) !important;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  margin: 0.5rem 2rem !important;
}

.mobile-signup:hover {
  background: rgba(255, 255, 255, 0.3) !important;
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 1rem;
  }

  .logo {
    font-size: 1.5rem;
  }

  .title {
    font-size: 1.8rem;
  }

  .subtitle {
    font-size: 1rem;
  }
}

.footer {
  background: #f8f9fa;
  border-top: 1px solid #e9ecef;
  margin-top: 4rem;
  padding: 2rem 0;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
}

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

.footer-links a {
  color: #6c757d;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #3b9cf0;
}

.footer-copyright {
  color: #6c757d;
  font-size: 0.85rem;
}

.footer-copyright p {
  margin: 0;
}

@media (max-width: 768px) {
  .footer-links {
    gap: 1.5rem;
  }

  .footer-links a {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }
}

.color-themes {
  margin-top: 4rem;
  padding: 2rem;
  background: #f8f9fa;
  border-radius: 16px;
  text-align: center;
}

.color-themes h3 {
  color: #333;
  font-size: 1.5rem;
  margin-bottom: 2rem;
  font-weight: 600;
}

.theme-options {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  max-width: 1000px;
  margin: 0 auto;
}

.theme-option {
  background: white;
  padding: 1.5rem 1rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.theme-option:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.theme-option.active {
  border-color: #333;
  background: #f0f8ff;
}

.theme-preview {
  width: 60px;
  height: 40px;
  border-radius: 8px;
  margin: 0 auto 1rem;
  position: relative;
  overflow: hidden;
}

.blue1-theme {
  background: linear-gradient(135deg, #3b9cf0, #5ba7f2);
}

.blue2-theme {
  background: linear-gradient(135deg, #60a5fa, #93c5fd);
}

.blue3-theme {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
}

.blue4-theme {
  background: linear-gradient(135deg, #475569, #64748b);
}

.purple1-theme {
  background: linear-gradient(135deg, #8b5cf6, #a78bfa);
}

.purple2-theme {
  background: linear-gradient(135deg, #c084fc, #ddd6fe);
}

.purple3-theme {
  background: linear-gradient(135deg, #7c3aed, #8b5cf6);
}

.dark1-theme {
  background: linear-gradient(135deg, #374151, #4b5563);
}

.dark2-theme {
  background: linear-gradient(135deg, #1f2937, #374151);
}

.dark3-theme {
  background: linear-gradient(135deg, #475569, #64748b);
}

.theme-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.25rem;
}

.theme-description {
  font-size: 0.75rem;
  color: #666;
}

@media (max-width: 768px) {
  .theme-options {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}

@media (max-width: 1024px) {
  .theme-options {
    grid-template-columns: repeat(3, 1fr);
  }
}

.logo-treatments {
  margin-top: 4rem;
  padding: 2rem;
  background: #f8f9fa;
  border-radius: 16px;
  text-align: center;
}

.logo-treatments h3 {
  color: #333;
  font-size: 1.5rem;
  margin-bottom: 2rem;
  font-weight: 600;
}

.logo-options {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.logo-option {
  background: white;
  padding: 2rem 1rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.logo-option:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border-color: #3b9cf0;
}

.logo-sample {
  font-size: 1.8rem;
  font-weight: bold;
  margin-bottom: 1rem;
  color: #3b9cf0;
}

.logo-sample.option-1 {
  font-family: "Georgia", serif;
  font-style: italic;
}

.logo-sample.option-2 {
  font-family: "Courier New", monospace;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.logo-sample.option-3 {
  font-family: "Arial", sans-serif;
  text-transform: lowercase;
  font-weight: 300;
  font-size: 2rem;
}

.logo-sample.option-4 {
  font-family: "Times New Roman", serif;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 1.6rem;
}

.logo-sample.option-5 {
  font-family: "Verdana", sans-serif;
  background: linear-gradient(135deg, #3b9cf0, #5ba7f2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2rem;
}

.logo-description {
  font-size: 0.9rem;
  color: #666;
  font-weight: 500;
}

@media (max-width: 768px) {
  .logo-options {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (max-width: 1024px) {
  .logo-options {
    grid-template-columns: repeat(2, 1fr);
  }
}