/* ========================================
   Maplewood Games Collective - Main Styles
   Brand Colors:
   - Primary Wood: #E8DCCA (浅棕色)
   - Cream: #F9F7F4 (米白色)
   - Light Blue: #A7C0FF (浅蓝色)
   - Light Green: #B8E0D2 (浅绿色)
   - Dark Brown: #8B5A2B (深棕色/强调色)
======================================== */

/* CSS Variables */
:root {
    /* Brand Colors */
    --color-wood: #E8DCCA;
    --color-wood-light: #F5EDE3;
    --color-wood-dark: #D4C4B0;
    --color-cream: #F9F7F4;
    --color-cream-dark: #F0EDE8;
    --color-blue: #A7C0FF;
    --color-blue-light: #C5D8FF;
    --color-green: #B8E0D2;
    --color-green-light: #D4EDE4;
    --color-brown: #8B5A2B;
    --color-brown-dark: #6B4423;
    --color-brown-light: #A67C52;
    
    /* Semantic Colors */
    --color-primary: #8B5A2B;
    --color-primary-hover: #6B4423;
    --color-secondary: #A7C0FF;
    --color-secondary-hover: #8BA8F0;
    --color-accent: #B8E0D2;
    --color-background: #F9F7F4;
    --color-surface: #FFFFFF;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-border: #E8DCCA;
    --color-shadow: rgba(139, 90, 43, 0.1);
    
    /* Status Colors */
    --color-success: #4CAF50;
    --color-warning: #FF9800;
    --color-error: #F44336;
    --color-info: #2196F3;
    
    /* Typography */
    --font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --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;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* 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);
    --shadow-xl: 0 20px 25px var(--color-shadow);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Layout */
    --header-height: 70px;
    --container-max-width: 1400px;
    --container-padding: 1rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-surface);
    border-bottom: 2px solid var(--color-border);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

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

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.logo-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-main {
    font-size: var(--font-size-lg);
    font-weight: 800;
    color: var(--color-brown);
}

.logo-sub {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    font-weight: 600;
}

/* Navigation */
.nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex: 1;
    justify-content: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    font-weight: 600;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.dropdown {
    position: relative;
}

.dropdown-arrow {
    font-size: 0.6rem;
    transition: transform var(--transition-fast);
}

.dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
}

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

.dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--color-wood-light);
    color: var(--color-primary);
}

/* Search Box */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.search-box input {
    width: 200px;
    padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-cream);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    width: 250px;
}

.search-btn {
    position: absolute;
    right: var(--spacing-sm);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

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

.search-btn svg {
    width: 18px;
    height: 18px;
}

.search-suggestions {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    left: 0;
    right: 0;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 300px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: 1002;
}

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

.suggestion-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.suggestion-item:hover {
    background: var(--color-wood-light);
}

.suggestion-item img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.suggestion-info {
    flex: 1;
}

.suggestion-title {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

.suggestion-category {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
    z-index: 1002;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--color-brown);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

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

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

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

/* Mobile Navigation */
.nav-mobile {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-surface);
    z-index: 999;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-base);
}

.nav-mobile.active {
    transform: translateX(0);
}

.mobile-nav-content {
    padding: var(--spacing-lg);
}

.mobile-nav-item {
    display: block;
    padding: var(--spacing-md);
    color: var(--color-text);
    font-weight: 600;
    font-size: var(--font-size-lg);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.mobile-nav-item:hover {
    color: var(--color-primary);
    background: var(--color-wood-light);
    padding-left: var(--spacing-lg);
}

.mobile-nav-divider {
    height: 2px;
    background: var(--color-border);
    margin: var(--spacing-md) 0;
}

/* Main Content */
main {
    padding-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* Breadcrumb */
.breadcrumb {
    background: var(--color-wood-light);
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
}

.breadcrumb a {
    color: var(--color-text-light);
}

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

.breadcrumb-separator {
    margin: 0 var(--spacing-sm);
    color: var(--color-text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

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

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

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

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

.btn-full {
    width: 100%;
}

/* Game Cards */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.game-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
}

.game-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.game-card-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.game-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.game-card:hover .game-card-image img {
    transform: scale(1.05);
}

.game-card-badges {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.badge-new {
    background: var(--color-green);
    color: var(--color-text);
}

.badge-hot {
    background: #FF6B6B;
    color: white;
}

.badge-exclusive {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: var(--color-text);
}

.badge-achievement {
    background: var(--color-blue);
    color: var(--color-text);
}

.game-card-content {
    padding: var(--spacing-md);
}

.game-card-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.game-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.game-card-rating {
    display: flex;
    align-items: center;
    gap: 2px;
    color: #FFB800;
}

/* Section Headers */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.section-header.center {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
}

.section-title-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-icon {
    font-size: var(--font-size-xl);
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-text);
}

.section-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
}

.section-badge {
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 2px 10px;
    border-radius: var(--radius-full);
}

.view-all {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
}

.view-all:hover {
    gap: var(--spacing-sm);
}

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

.game-section:nth-child(even) {
    background: var(--color-surface);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-weight: 700;
}

.logo-icon.small {
    width: 32px;
    height: 32px;
}

.footer-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.6;
}

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

.social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border-radius: var(--radius-full);
    color: var(--color-text-light);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-links h4 {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-wood-dark);
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.footer-domain {
    font-weight: 600;
    color: var(--color-primary);
    margin-top: var(--spacing-xs);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 998;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-primary-hover);
    transform: translateY(-4px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-text);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 1003;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xl);
}

.page-btn {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-sm);
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.page-btn:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

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

/* Responsive Design */
@media (max-width: 1024px) {
    .nav-desktop {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-mobile {
        display: block;
    }
    
    .search-box input {
        width: 150px;
    }
    
    .search-box input:focus {
        width: 180px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 0.75rem;
    }
    
    .logo-text {
        display: none;
    }
    
    .search-box {
        display: none;
    }
    
    .games-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-brand {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .games-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .game-card-content {
        padding: var(--spacing-sm);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
}

/* Utility Classes */
.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;
}

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

.hidden {
    display: none !important;
}