/* ============================================
   Maxpro Land - Main Stylesheet
   Version: Blueprint-1
   ============================================ */

/* CSS Custom Properties (Design Tokens) */
:root {
  /* Colors - Light Theme */
  --color-primary: #1E88E5;
  --color-primary-dark: #1565C0;
  --color-primary-light: #64B5F6;
  --color-secondary: #1a1a1a;
  --color-accent: #43A047;
  
  --color-bg: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #f1f3f5;
  --color-text: #212529;
  --color-text-muted: #6c757d;
  --color-border: #dee2e6;
  --color-shadow: rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --header-height: 70px;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px var(--color-shadow);
  --shadow-md: 0 4px 6px var(--color-shadow);
  --shadow-lg: 0 10px 15px var(--color-shadow);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  
  /* Focus */
  --focus-ring: 0 0 0 3px rgba(30, 136, 229, 0.4);
}

/* Dark Theme */
[data-theme="dark"] {
  --color-bg: #1a1a2e;
  --color-bg-secondary: #16213e;
  --color-bg-tertiary: #0f3460;
  --color-text: #e8e8e8;
  --color-text-muted: #a0a0a0;
  --color-border: #2d3748;
  --color-shadow: rgba(0, 0, 0, 0.3);
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  z-index: 1000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus Styles */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

a:focus-visible, button:focus-visible {
  box-shadow: var(--focus-ring);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
  margin-bottom: var(--spacing-md);
}

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

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  background: none;
}

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

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

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

.btn-outline {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}

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

.btn-small {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--spacing-lg);
}

.logo-link {
  flex-shrink: 0;
}

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

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  left: 0;
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  color: var(--color-text);
  font-weight: 500;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

/* Header Controls */
.header-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

.sun-icon { display: block; }
.moon-icon { display: none; }

[data-theme="dark"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }

/* Language Selector */
.language-selector {
  position: relative;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: none;
  border: 1px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--color-text);
  font-size: var(--font-size-sm);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + var(--spacing-sm));
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  list-style: none;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: 10;
}

.lang-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition: background-color var(--transition-fast);
}

.lang-option:hover:not(:disabled) {
  background-color: var(--color-bg-secondary);
}

.lang-option:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.lang-option.active {
  background-color: var(--color-bg-secondary);
  font-weight: 600;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.hero-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
  font-weight: 700;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
  opacity: 0.95;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

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

.hero .btn-secondary:hover {
  background-color: var(--color-bg-secondary);
}

/* Search Section */
.search-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-secondary);
}

.search-form {
  max-width: 600px;
  margin: 0 auto;
}

.search-input-wrapper {
  display: flex;
  gap: 0;
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.search-input-wrapper input {
  flex: 1;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-right: none;
  font-size: var(--font-size-base);
  background: var(--color-bg);
  color: var(--color-text);
}

.search-input-wrapper input:focus {
  outline: none;
}

.search-btn {
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-primary);
  border: none;
  color: white;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.search-btn:hover {
  background-color: var(--color-primary-dark);
}

/* Sections */
section {
  padding: var(--spacing-2xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.product-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.product-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.product-icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  flex-shrink: 0;
}

.product-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-xs);
}

.product-vendor {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.product-description {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.tag {
  background: var(--color-bg-tertiary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.product-footer {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: auto;
}

.product-price {
  font-weight: 600;
  color: var(--color-text);
  align-self: center;
}

/* Categories */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.category-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.category-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.category-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.category-card h3 {
  margin-bottom: var(--spacing-sm);
}

.category-card p {
  color: var(--color-text-muted);
  margin: 0;
}

/* Value Section */
.value-section {
  background-color: var(--color-bg-secondary);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.value-card {
  background: var(--color-bg);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-align: center;
}

.value-icon {
  width: 64px;
  height: 64px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  margin: 0 auto var(--spacing-md);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.cta-section h2 {
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

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

/* Page Header */
.page-header {
  background: var(--color-bg-secondary);
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.page-header h1 {
  margin-bottom: var(--spacing-sm);
}

/* Explore Section */
.explore-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--spacing-2xl);
}

.filters-sidebar {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  height: fit-content;
  position: sticky;
  top: calc(var(--header-height) + var(--spacing-lg));
}

.filters-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.filter-group {
  margin-bottom: var(--spacing-lg);
}

.filter-group h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
}

.filter-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.filter-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.filter-option:hover {
  background-color: var(--color-bg-secondary);
}

.filter-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.products-main {
  min-width: 0;
}

.products-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.results-count {
  font-weight: 500;
  color: var(--color-text-muted);
}

.sort-select {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  cursor: pointer;
}

.no-results {
  text-align: center;
  padding: var(--spacing-3xl);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.loading-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--color-text-muted);
  grid-column: 1 / -1;
}

/* Content Section */
.content-section {
  padding: var(--spacing-3xl) 0;
}

.content-article {
  max-width: 800px;
  margin: 0 auto;
}

.content-article h2 {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
}

.content-article h2:first-child {
  margin-top: 0;
}

.content-article ul {
  margin-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.content-article li {
  margin-bottom: var(--spacing-sm);
}

/* Guides Grid */
.guides-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.guide-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

.guide-card h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.guide-card ul {
  margin-left: var(--spacing-xl);
  margin-top: var(--spacing-md);
}

/* Footer */
.site-footer {
  background: var(--color-secondary);
  color: white;
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.8);
  margin-top: var(--spacing-md);
}

.footer-logo {
  filter: brightness(0) invert(1);
}

.footer-links h3,
.footer-contact h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
  color: white;
}

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

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

.affiliate-notice {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

/* Error Section */
.error-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.error-section h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
}

.error-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-xl);
}

/* Responsive Design */
@media (max-width: 992px) {
  .explore-layout {
    grid-template-columns: 1fr;
  }
  
  .filters-sidebar {
    position: static;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .nav-menu {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
  }
  
  .nav-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .categories-grid {
    grid-template-columns: 1fr;
  }
  
  .value-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-base: 14px;
  }
  
  .hero-cta,
  .error-actions {
    flex-direction: column;
  }
  
  .product-footer {
    flex-direction: column;
  }
  
  .search-input-wrapper {
    flex-direction: column;
  }
  
  .search-input-wrapper input {
    border-right: 1px solid var(--color-border);
    border-bottom: none;
  }
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .theme-toggle,
  .language-selector,
  .btn {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
}