/**
 * Marketplace Base Styles
 * 
 * This file uses CSS custom properties from the Manager service's design system.
 * All values reference --var-name variables that are defined in /tokens.css
 * 
 * IMPORTANT: Do not hardcode colors, spacing, or typography values here.
 * Always use CSS variables to ensure Manager service can control appearance.
 */

/* ============================================================================
   CSS Reset & Base
   ============================================================================ */

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

html {
    font-size: var(--text-base, 16px);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif);
    background-color: var(--color-surface, #F9FAFB);
    color: var(--color-text, #1F2937);
    line-height: 1.5;
    min-height: 100vh;
}

/* ============================================================================
   Typography
   ============================================================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary, var(--font-primary));
    color: var(--color-text, #1F2937);
    line-height: 1.25;
    margin-bottom: var(--space-sm, 8px);
}

h1 { font-size: var(--text-4xl, 36px); font-weight: 700; }
h2 { font-size: var(--text-3xl, 30px); font-weight: 600; }
h3 { font-size: var(--text-2xl, 24px); font-weight: 600; }
h4 { font-size: var(--text-xl, 20px); font-weight: 500; }
h5 { font-size: var(--text-lg, 18px); font-weight: 500; }
h6 { font-size: var(--text-base, 16px); font-weight: 500; }

p {
    margin-bottom: var(--space-md, 16px);
}

a {
    color: var(--color-primary, #10B981);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-accent, #8B5CF6);
}

small {
    font-size: var(--text-sm, 14px);
    color: var(--color-text-secondary, #6B7280);
}

/* ============================================================================
   Layout
   ============================================================================ */

.container {
    width: 100%;
    max-width: var(--layout-max-width, 1200px);
    margin: 0 auto;
    padding: 0 var(--space-md, 16px);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--space-md, 16px);
}

.main-content {
    min-height: calc(100vh - var(--header-height, 64px) - 200px);
    padding: var(--space-lg, 24px) 0;
}

/* ============================================================================
   Header
   ============================================================================ */

.marketplace-header {
    background-color: var(--color-primary, #10B981);
    color: var(--color-background, #FFFFFF);
    height: var(--header-height, 64px);
    display: flex;
    align-items: center;
    padding: 0 var(--space-lg, 24px);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.05));
}

.marketplace-header .logo {
    font-size: var(--text-xl, 20px);
    font-weight: 700;
    color: inherit;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm, 8px);
}

.marketplace-header .logo:hover {
    color: inherit;
    opacity: 0.9;
}

.marketplace-nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg, 24px);
    margin-left: auto;
}

.marketplace-nav a {
    color: inherit;
    opacity: 0.9;
    font-size: var(--text-sm, 14px);
    font-weight: 500;
    transition: opacity 0.2s ease;
}

.marketplace-nav a:hover {
    opacity: 1;
    color: inherit;
}

/* ============================================================================
   Footer
   ============================================================================ */

.marketplace-footer {
    background-color: var(--color-text, #1F2937);
    color: var(--color-background, #FFFFFF);
    padding: var(--space-2xl, 48px) var(--space-lg, 24px);
    margin-top: auto;
}

.marketplace-footer a {
    color: inherit;
    opacity: 0.8;
}

.marketplace-footer a:hover {
    opacity: 1;
    color: inherit;
}

/* ============================================================================
   Cards
   ============================================================================ */

.card {
    background-color: var(--color-background, #FFFFFF);
    border-radius: var(--radius-md, 8px);
    box-shadow: var(--shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.05));
    overflow: hidden;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
}

.card-body {
    padding: var(--space-md, 16px);
}

.card-header {
    padding: var(--space-md, 16px);
    border-bottom: 1px solid var(--color-surface, #F9FAFB);
}

.card-footer {
    padding: var(--space-md, 16px);
    border-top: 1px solid var(--color-surface, #F9FAFB);
    background-color: var(--color-surface, #F9FAFB);
}

/* ============================================================================
   Buttons
   ============================================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs, 4px);
    padding: var(--space-sm, 8px) var(--space-md, 16px);
    font-family: var(--font-primary);
    font-size: var(--text-sm, 14px);
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-sm, 4px);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

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

.btn-primary {
    background-color: var(--color-primary, #10B981);
    color: var(--color-background, #FFFFFF);
}

.btn-primary:hover:not(:disabled) {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-surface, #F9FAFB);
    color: var(--color-text, #1F2937);
    border: 1px solid var(--color-text-secondary, #6B7280);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-background, #FFFFFF);
}

.btn-danger {
    background-color: var(--color-danger, #EF4444);
    color: var(--color-background, #FFFFFF);
}

.btn-danger:hover:not(:disabled) {
    opacity: 0.9;
}

.btn-success {
    background-color: var(--color-success, #10B981);
    color: var(--color-background, #FFFFFF);
}

.btn-lg {
    padding: var(--space-md, 16px) var(--space-lg, 24px);
    font-size: var(--text-base, 16px);
}

.btn-sm {
    padding: var(--space-xs, 4px) var(--space-sm, 8px);
    font-size: var(--text-xs, 12px);
}

/* ============================================================================
   Forms
   ============================================================================ */

.form-group {
    margin-bottom: var(--space-md, 16px);
}

.form-label {
    display: block;
    font-size: var(--text-sm, 14px);
    font-weight: 500;
    color: var(--color-text, #1F2937);
    margin-bottom: var(--space-xs, 4px);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-sm, 8px) var(--space-md, 16px);
    font-family: var(--font-primary);
    font-size: var(--text-base, 16px);
    color: var(--color-text, #1F2937);
    background-color: var(--color-background, #FFFFFF);
    border: 1px solid var(--color-text-secondary, #6B7280);
    border-radius: var(--radius-sm, 4px);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary, #10B981);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-secondary, #6B7280);
    opacity: 0.7;
}

.form-error {
    font-size: var(--text-sm, 14px);
    color: var(--color-danger, #EF4444);
    margin-top: var(--space-xs, 4px);
}

.form-help {
    font-size: var(--text-sm, 14px);
    color: var(--color-text-secondary, #6B7280);
    margin-top: var(--space-xs, 4px);
}

/* ============================================================================
   Grid System
   ============================================================================ */

.grid {
    display: grid;
    gap: var(--space-lg, 24px);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.grid-auto {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ============================================================================
   Flex Utilities
   ============================================================================ */

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-xs { gap: var(--space-xs, 4px); }
.gap-sm { gap: var(--space-sm, 8px); }
.gap-md { gap: var(--space-md, 16px); }
.gap-lg { gap: var(--space-lg, 24px); }

/* ============================================================================
   Spacing Utilities
   ============================================================================ */

.m-0 { margin: 0; }
.m-xs { margin: var(--space-xs, 4px); }
.m-sm { margin: var(--space-sm, 8px); }
.m-md { margin: var(--space-md, 16px); }
.m-lg { margin: var(--space-lg, 24px); }

.mt-0 { margin-top: 0; }
.mt-xs { margin-top: var(--space-xs, 4px); }
.mt-sm { margin-top: var(--space-sm, 8px); }
.mt-md { margin-top: var(--space-md, 16px); }
.mt-lg { margin-top: var(--space-lg, 24px); }
.mt-xl { margin-top: var(--space-xl, 32px); }

.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--space-xs, 4px); }
.mb-sm { margin-bottom: var(--space-sm, 8px); }
.mb-md { margin-bottom: var(--space-md, 16px); }
.mb-lg { margin-bottom: var(--space-lg, 24px); }
.mb-xl { margin-bottom: var(--space-xl, 32px); }

.p-0 { padding: 0; }
.p-xs { padding: var(--space-xs, 4px); }
.p-sm { padding: var(--space-sm, 8px); }
.p-md { padding: var(--space-md, 16px); }
.p-lg { padding: var(--space-lg, 24px); }

/* ============================================================================
   Text Utilities
   ============================================================================ */

.text-xs { font-size: var(--text-xs, 12px); }
.text-sm { font-size: var(--text-sm, 14px); }
.text-base { font-size: var(--text-base, 16px); }
.text-lg { font-size: var(--text-lg, 18px); }
.text-xl { font-size: var(--text-xl, 20px); }
.text-2xl { font-size: var(--text-2xl, 24px); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-primary { color: var(--color-primary, #10B981); }
.text-secondary { color: var(--color-text-secondary, #6B7280); }
.text-success { color: var(--color-success, #10B981); }
.text-danger { color: var(--color-danger, #EF4444); }
.text-warning { color: var(--color-warning, #F59E0B); }

/* ============================================================================
   Alerts & Messages
   ============================================================================ */

.alert {
    padding: var(--space-md, 16px);
    border-radius: var(--radius-sm, 4px);
    margin-bottom: var(--space-md, 16px);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success, #10B981);
    color: var(--color-success, #10B981);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-danger, #EF4444);
    color: var(--color-danger, #EF4444);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--color-warning, #F59E0B);
    color: var(--color-warning, #F59E0B);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--color-info, #3B82F6);
    color: var(--color-info, #3B82F6);
}

/* ============================================================================
   Loading States
   ============================================================================ */

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl, 32px);
    color: var(--color-text-secondary, #6B7280);
}

.loading::after {
    content: '';
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-surface, #F9FAFB);
    border-top-color: var(--color-primary, #10B981);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: var(--space-sm, 8px);
}

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

/* ============================================================================
   Empty States
   ============================================================================ */

.empty-state {
    text-align: center;
    padding: var(--space-2xl, 48px) var(--space-lg, 24px);
    color: var(--color-text-secondary, #6B7280);
}

.empty-state-icon {
    font-size: var(--text-5xl, 48px);
    margin-bottom: var(--space-md, 16px);
}

.empty-state h3 {
    color: var(--color-text, #1F2937);
    margin-bottom: var(--space-sm, 8px);
}

/* ============================================================================
   Badges
   ============================================================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs, 4px) var(--space-sm, 8px);
    font-size: var(--text-xs, 12px);
    font-weight: 500;
    border-radius: var(--radius-full, 9999px);
}

.badge-primary {
    background-color: var(--color-primary, #10B981);
    color: var(--color-background, #FFFFFF);
}

.badge-secondary {
    background-color: var(--color-surface, #F9FAFB);
    color: var(--color-text-secondary, #6B7280);
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success, #10B981);
}

.badge-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-danger, #EF4444);
}

/* ============================================================================
   Product Cards (Marketplace Specific)
   ============================================================================ */

.product-card {
    background-color: var(--color-background, #FFFFFF);
    border-radius: var(--radius-md, 8px);
    box-shadow: var(--shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.05));
    overflow: hidden;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.product-card:hover {
    box-shadow: var(--shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
    transform: translateY(-2px);
}

.product-card-image {
    aspect-ratio: 1;
    background-color: var(--color-surface, #F9FAFB);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card-body {
    padding: var(--space-md, 16px);
}

.product-card-title {
    font-size: var(--text-base, 16px);
    font-weight: 600;
    color: var(--color-text, #1F2937);
    margin-bottom: var(--space-xs, 4px);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-vendor {
    font-size: var(--text-sm, 14px);
    color: var(--color-text-secondary, #6B7280);
    margin-bottom: var(--space-sm, 8px);
}

.product-card-price {
    font-size: var(--text-lg, 18px);
    font-weight: 700;
    color: var(--color-primary, #10B981);
}

.product-card-price-original {
    font-size: var(--text-sm, 14px);
    color: var(--color-text-secondary, #6B7280);
    text-decoration: line-through;
    margin-left: var(--space-sm, 8px);
}

.product-card-rating {
    display: flex;
    align-items: center;
    gap: var(--space-xs, 4px);
    font-size: var(--text-sm, 14px);
    color: var(--color-warning, #F59E0B);
    margin-top: var(--space-sm, 8px);
}

/* ============================================================================
   Vendor Cards
   ============================================================================ */

.vendor-card {
    background-color: var(--color-background, #FFFFFF);
    border-radius: var(--radius-md, 8px);
    box-shadow: var(--shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.05));
    padding: var(--space-lg, 24px);
    text-align: center;
}

.vendor-card-logo {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full, 9999px);
    background-color: var(--color-surface, #F9FAFB);
    margin: 0 auto var(--space-md, 16px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.vendor-card-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vendor-card-name {
    font-size: var(--text-lg, 18px);
    font-weight: 600;
    color: var(--color-text, #1F2937);
    margin-bottom: var(--space-xs, 4px);
}

.vendor-card-badges {
    display: flex;
    justify-content: center;
    gap: var(--space-xs, 4px);
    margin-top: var(--space-sm, 8px);
}

/* ============================================================================
   Seasonal Theme Support
   ============================================================================ */

.seasonal-active .marketplace-header {
    /* Seasonal themes can override header colors */
}

.theme-christmas .marketplace-header {
    background: linear-gradient(135deg, #C41E3A 0%, #165B33 100%);
}

.theme-halloween .marketplace-header {
    background: linear-gradient(135deg, #FF6600 0%, #1A1A2E 100%);
}

.theme-valentine .marketplace-header {
    background: linear-gradient(135deg, #FF1493 0%, #DC143C 100%);
}

/* ============================================================================
   Accessibility
   ============================================================================ */

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

/* Skip link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary, #10B981);
    color: var(--color-background, #FFFFFF);
    padding: var(--space-sm, 8px) var(--space-md, 16px);
    z-index: 1000;
    transition: top 0.2s ease;
}

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

/* Focus visible for keyboard users */
:focus-visible {
    outline: 2px solid var(--color-accent, #8B5CF6);
    outline-offset: 2px;
}

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