/* ============================================
   Prompting4u Store - Main Stylesheet
   Brand Color: #835de4 (Purple)
   ============================================ */

/* CSS Variables for consistent theming */
:root {
  --primary-color: #835de4;
  --primary-dark: #6b4bc4;
  --primary-light: #a78bfa;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --text-white: #ffffff;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-light);
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  color: var(--text-light);
}

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

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============================================
   Header & Navigation
   ============================================ */
header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
}

.logo img {
  height: 40px;
  width: auto;
  border-radius: var(--radius-sm);
}

.logo span {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

nav a {
  color: var(--text-dark);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width var(--transition-normal);
}

nav a:hover::after {
  width: 100%;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--text-white);
  padding: 5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-logo {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-xl);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-xl);
}

.hero h1 {
  color: var(--text-white);
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-white);
  color: var(--primary-color);
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1.1rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  color: var(--primary-dark);
}

/* ============================================
   Search & Filters Section
   ============================================ */
.filters-section {
  background: var(--bg-white);
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-color);
}

.filters-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.search-box {
  flex: 1;
  min-width: 250px;
  max-width: 400px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 3rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(131, 93, 228, 0.1);
}

.search-box::before {
  content: '🔍';
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  opacity: 0.5;
}

.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-btn {
  padding: 0.625rem 1.25rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-white);
  color: var(--text-dark);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.filter-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--text-white);
}

/* ============================================
   Products Grid
   ============================================ */
.products-section {
  padding: 3rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-title h2 {
  margin-bottom: 0.5rem;
}

.section-title p {
  font-size: 1.1rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

/* Product Card */
.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.product-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.product-tag {
  padding: 0.25rem 0.75rem;
  background: rgba(131, 93, 228, 0.1);
  color: var(--primary-color);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.product-card p {
  font-size: 0.9rem;
  margin-bottom: 1rem;
  flex: 1;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.product-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.product-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-light);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

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

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

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

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* ============================================
   Single Product Page
   ============================================ */
.product-detail {
  padding: 3rem 0;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.product-detail-image {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.product-detail-info h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.product-detail-info .product-tags {
  margin-bottom: 1.5rem;
}

.product-detail-info .product-description {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.product-detail-price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 2rem;
}

.files-preview {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.files-preview h4 {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.files-list {
  list-style: none;
}

.files-list li {
  padding: 0.75rem 1rem;
  background: var(--bg-white);
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
}

.files-list li::before {
  content: '📄';
}

/* ============================================
   Success Page
   ============================================ */
.success-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 0;
}

.success-content {
  text-align: center;
  max-width: 600px;
  background: var(--bg-white);
  padding: 3rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.success-icon {
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, #10b981, #059669);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  font-size: 3rem;
}

.success-content h1 {
  color: #10b981;
  margin-bottom: 1rem;
}

.success-content p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.download-section {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
}

.download-section h3 {
  margin-bottom: 1rem;
}

.download-list {
  list-style: none;
  text-align: left;
}

.download-list li {
  padding: 1rem;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.download-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--primary-color);
  color: var(--text-white);
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9rem;
}

.download-list a:hover {
  background: var(--primary-dark);
  color: var(--text-white);
}

.email-notice {
  background: rgba(131, 93, 228, 0.1);
  border: 1px solid var(--primary-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: left;
}

.email-notice h4 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.email-notice p {
  font-size: 0.9rem;
  margin: 0;
}

/* ============================================
   Footer
   ============================================ */
footer {
  background: var(--text-dark);
  color: var(--text-white);
  padding: 3rem 0 1.5rem;
  margin-top: auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: 1rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer-links h4 {
  color: var(--text-white);
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--text-white);
}

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

/* ============================================
   Loading States
   ============================================ */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* No Results */
.no-results {
  text-align: center;
  padding: 4rem 2rem;
  grid-column: 1 / -1;
}

.no-results h3 {
  margin-bottom: 0.5rem;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .product-detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .hero {
    padding: 3rem 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-logo {
    width: 80px;
    height: 80px;
  }

  .header-content {
    flex-direction: column;
    gap: 1rem;
  }

  nav ul {
    gap: 1rem;
  }

  .filters-wrapper {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    max-width: 100%;
  }

  .category-filters {
    justify-content: center;
  }

  .products-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .success-content {
    padding: 2rem 1.5rem;
  }

  .download-list li {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
}

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

  .product-footer {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .btn-large {
    width: 100%;
  }
}

/* ============================================
   Utilities
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden { display: none; }
.visible { display: block; }