/* style.css */
:root {
    --primary-color: #3A62FF;
    --secondary-color: #FFA63A;
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FB;
    --bg-accent-light: #E6EBFF;
    --text-dark: #1a1a1a;
    --text-gray: #6c757d;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 24px rgba(58, 98, 255, 0.15);
    --transition: all 0.3s ease;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: "Roboto", sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
  }
  
  h1, h2, h3, h4, h5, h6 {
    font-family: "Poppins", sans-serif;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
  }
  
  h1 { font-size: 2.75rem; }
  h2 { font-size: 2.25rem; }
  h3 { font-size: 1.75rem; }
  
  img {
    max-width: 100%;
    height: auto;
  }
  
  a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
  }
  
  /* Header Styles */
  .header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
  }
  
  .logo {
    font-family: "Poppins", sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
  }
  
  .nav-link {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: var(--transition);
  }
  
  .nav-link:hover {
    background: var(--bg-accent-light);
    color: var(--primary-color);
  }
  
  .cart-icon {
    position: relative;
  }
  
  .cart-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--secondary-color);
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
  }
  
  /* Button Styles */
  .btn-primary-custom {
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    border: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .btn-primary-custom:hover {
    background: #2d4dd6;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    color: white;
  }
  
  .btn-secondary-custom {
    background: var(--secondary-color);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    border: none;
    transition: var(--transition);
  }
  
  .btn-secondary-custom:hover {
    background: #e69333;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 166, 58, 0.25);
    color: white;
  }
  
  .btn-outline-custom {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
  }
  
  .btn-outline-custom:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
  }
  
  /* Card Styles */
  .card-custom {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    height: 100%;
  }
  
  .card-custom:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }
  
  .icon-wrapper {
    width: 64px;
    height: 64px;
    background: var(--bg-accent-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
  }
  
  .icon-wrapper .material-icons-outlined {
    font-size: 32px;
    color: var(--primary-color);
  }
  
  .icon-wrapper-secondary {
    background: rgba(255, 166, 58, 0.15);
  }
  
  .icon-wrapper-secondary .material-icons-outlined {
    color: var(--secondary-color);
  }
  
  /* Section Styles */
  .section-padding {
    padding: 5rem 0;
  }
  
  .section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
  }
  
  .section-subtitle {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto 3rem;
  }
  
  .bg-light-section {
    background: var(--bg-light);
  }
  
  .bg-accent-section {
    background: var(--bg-accent-light);
  }
  
  /* Hero Section */
  .hero-section {
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-accent-light) 0%, var(--bg-light) 100%);
    position: relative;
    overflow: hidden;
  }
  
  .hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
  }
  
  .hero-content h1 span {
    color: var(--primary-color);
  }
  
  /* Book Card */
  .book-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    height: 100%;
    display: flex;
    flex-direction: column;
  }
  
  .book-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
  }
  
  .book-card-img {
    width: 100%;
    height: 300px;
    object-fit: contain;
    background: var(--bg-light);
  }
  
  .book-card-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
  }
  
  .book-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
  }
  
  .book-author {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 1rem;
  }
  
  .book-price {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-top: auto;
    margin-bottom: 1rem;
  }
  
  /* Review Card */
  .review-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    height: 100%;
  }
  
  .reviewer-name {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
  }
  
  /* FAQ Accordion */
  .faq-item {
    background: white;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
  }
  
  .faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: var(--transition);
    background: white;
  }
  
  .faq-question:hover {
    background: var(--bg-light);
  }
  
  .faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-gray);
    line-height: 1.7;
  }
  
  /* Footer */
  .footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1.5rem;
  }
  
  .footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
  }
  
  .footer a:hover {
    color: var(--primary-color);
  }
  
  .footer-section-title {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: white;
  }
  
  /* Cookie Popup */
  .cookie-popup {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    right: 2rem;
    max-width: 500px;
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    display: none;
  }
  
  .cookie-popup.show {
    display: block;
    animation: slideUp 0.3s ease;
  }
  
  @keyframes slideUp {
    from {
      transform: translateY(100px);
      opacity: 0;
    }
    to {
      transform: translateY(0);
      opacity: 1;
    }
  }
  
  /* Form Styles */
  .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(58, 98, 255, 0.15);
  }
  
  .form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
  }
  
  /* Cart Styles */
  .cart-item {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
  
  .cart-item-img {
    width: 100px;
    height: 140px;
    object-fit: cover;
    border-radius: 8px;
    background: var(--bg-light);
  }
  
  .quantity-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  .quantity-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    background: white;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
  }
  
  .quantity-btn:hover {
    background: var(--primary-color);
    color: white;
  }
  
  /* Page Header */
  .page-header {
    background: var(--bg-light);
    padding: 4rem 0 3rem;
    text-align: center;
  }
  
  .page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
  }
  
  .page-header p {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
  }
  
  /* Responsive */
  @media (max-width: 991px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    
    .hero-content h1 {
      font-size: 2.5rem;
    }
    
    .section-padding {
      padding: 3rem 0;
    }
  }
  
  @media (max-width: 767px) {
    h1 { font-size: 1.875rem; }
    h2 { font-size: 1.5rem; }
    
    .hero-section {
      min-height: 70vh;
    }
    
    .hero-content h1 {
      font-size: 2rem;
    }
    
    .cookie-popup {
      left: 1rem;
      right: 1rem;
      bottom: 1rem;
    }
    
    .cart-item {
      flex-direction: column;
      text-align: center;
    }
  }
  
  /* Service Pages */
  .service-content {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .service-content h2 {
    font-size: 1.75rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
  }
  
  .service-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
  }
  
  .service-content ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
  }
  
  .service-content li {
    margin-bottom: 0.75rem;
  }
  
  /* Thank You Page */
  .thank-you-card {
    max-width: 600px;
    margin: 4rem auto;
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 4rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
  }
  
  .thank-you-icon {
    width: 100px;
    height: 100px;
    background: var(--bg-accent-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
  }
  
  .thank-you-icon .material-icons-outlined {
    font-size: 60px;
    color: var(--primary-color);
  }