/* ==========================================================================
   基础样式和CSS变量
   ========================================================================== */

:root {
    /* 颜色系统 - 浅色主题 */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;

    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    --success-50: #f0fdf4;
    --success-100: #dcfce7;
    --success-200: #bbf7d0;
    --success-500: #22c55e;
    --success-600: #16a34a;

    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-200: #fde68a;
    --warning-500: #f59e0b;
    --warning-600: #d97706;

    --danger-50: #fef2f2;
    --danger-100: #fee2e2;
    --danger-200: #fecaca;
    --danger-500: #ef4444;
    --danger-600: #dc2626;

    --purple-50: #faf5ff;
    --purple-100: #f3e8ff;
    --purple-200: #e9d5ff;
    --purple-500: #a855f7;
    --purple-600: #9333ea;

    /* 语义化颜色 */
    --bg-primary: var(--gray-50);
    --bg-secondary: #ffffff;
    --bg-tertiary: var(--gray-100);
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-tertiary: var(--gray-400);
    --border-primary: var(--gray-200);
    --border-secondary: var(--gray-100);

    /* 字体 */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* 过渡动画 */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* 深色主题 */
[data-theme="dark"] {
    --bg-primary: var(--gray-900);
    --bg-secondary: var(--gray-800);
    --bg-tertiary: var(--gray-700);
    --text-primary: var(--gray-100);
    --text-secondary: var(--gray-300);
    --text-tertiary: var(--gray-500);
    --border-primary: var(--gray-700);
    --border-secondary: var(--gray-600);
}

/* ==========================================================================
   重置和基础样式
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ==========================================================================
   公共组件样式
   ========================================================================== */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* ==========================================================================
   导航栏样式
   ========================================================================== */

.navbar {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1.25rem;
}

.brand-text h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.brand-text span {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: block;
    margin-top: -0.25rem;
}

.navbar-nav {
    display: none;
    gap: var(--spacing-sm);
}

@media (min-width: 768px) {
    .navbar-nav {
        display: flex;
    }
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-600);
    background-color: var(--primary-50);
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
    background-color: var(--primary-900);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border: none;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--primary-100);
    color: var(--primary-600);
}

[data-theme="dark"] .theme-toggle:hover {
    background-color: var(--primary-900);
    color: var(--primary-400);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-menu:hover {
    background-color: var(--bg-tertiary);
}

.user-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    border: 2px solid var(--primary-200);
}

.user-name {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-primary);
    display: none;
}

@media (min-width: 640px) {
    .user-name {
        display: block;
    }
}

/* ==========================================================================
   页面头部样式
   ========================================================================== */

.page-header {
    height: 400px;
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
    border-bottom: 1px solid var(--border-primary);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

[data-theme="dark"] .page-header {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-700) 100%);
}

/* 背景装饰元素 */
.header-bg-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.bg-circles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(147, 51, 234, 0.1));
    animation: float 6s ease-in-out infinite;
}

[data-theme="dark"] .circle {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(147, 51, 234, 0.05));
}

.circle-1 {
    width: 200px;
    height: 200px;
    top: -50px;
    right: -50px;
    animation-delay: 0s;
}

.circle-2 {
    width: 150px;
    height: 150px;
    bottom: -30px;
    left: -30px;
    animation-delay: 2s;
}

.circle-3 {
    width: 100px;
    height: 100px;
    top: 50%;
    left: 20%;
    animation-delay: 4s;
}

.bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 30px 30px;
    background-position: 0 0, 0 0;
    animation: gridMove 20s linear infinite;
}

[data-theme="dark"] .bg-grid {
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.02) 1px, transparent 1px);
}

.floating-icons {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.floating-icon {
    position: absolute;
    color: var(--primary-300);
    font-size: 1.2rem;
    opacity: 0.6;
    animation: floatIcon 8s ease-in-out infinite;
}

[data-theme="dark"] .floating-icon {
    color: var(--primary-700);
    opacity: 0.3;
}

.icon-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.icon-2 {
    top: 60%;
    right: 15%;
    animation-delay: 1.5s;
}

.icon-3 {
    bottom: 30%;
    left: 5%;
    animation-delay: 3s;
}

.icon-4 {
    top: 30%;
    right: 5%;
    animation-delay: 4.5s;
}

.icon-5 {
    bottom: 20%;
    right: 30%;
    animation-delay: 6s;
}

.header-content {
    display: grid;
    gap: var(--spacing-xl);
    grid-template-columns: 1fr;
    position: relative;
    z-index: 2;
}

@media (min-width: 768px) {
    .header-content {
        grid-template-columns: 1fr auto;
        align-items: center;
    }
}

.title-container {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.title-accent {
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-600), var(--primary-400));
    border-radius: 2px;
    animation: expandAccent 1s ease-out 0.5s both;
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.welcome-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-lg);
    color: var(--primary-700);
    font-weight: 500;
    font-size: 0.875rem;
    animation: slideInLeft 0.8s ease-out 0.3s both;
    backdrop-filter: blur(10px);
}

[data-theme="dark"] .welcome-message {
    background: rgba(59, 130, 246, 0.05);
    border-color: rgba(59, 130, 246, 0.1);
    color: var(--primary-300);
}

.welcome-message i {
    font-size: 1rem;
    animation: bounce 2s infinite;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    min-height: 140px;
    align-content: center;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

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

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    background-color: var(--primary-100);
    color: var(--primary-600);
    font-size: 1.125rem;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.125rem;
}

/* ==========================================================================
   筛选区域样式
   ========================================================================== */

.filters-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
}

.filters-container {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .filters-container {
        grid-template-columns: auto 1fr auto auto;
        align-items: center;
    }
}

.search-box {
    position: relative;
    max-width: 400px;
}

.search-box i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.search-box input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 2.5rem;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.filter-tabs {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    border-color: var(--primary-300);
    color: var(--primary-600);
}

.filter-tab.active {
    background-color: var(--primary-100);
    border-color: var(--primary-500);
    color: var(--primary-700);
}

[data-theme="dark"] .filter-tab.active {
    background-color: var(--primary-900);
    border-color: var(--primary-400);
    color: var(--primary-300);
}

.difficulty-filter select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.difficulty-filter select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.view-toggle {
    display: flex;
    gap: 2px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 2px;
}

.view-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: none;
    border-radius: calc(var(--radius-md) - 2px);
    background-color: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.view-btn.active {
    background-color: var(--bg-secondary);
    color: var(--primary-600);
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   靶场列表样式
   ========================================================================== */

.targets-section {
    padding: var(--spacing-2xl) 0;
    min-height: 50vh;
}

.targets-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .targets-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

@media (min-width: 1440px) {
    .targets-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.targets-grid.list-view {
    grid-template-columns: 1fr;
}

.target-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    position: relative;
}

.target-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-200);
}

.target-header {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-secondary);
}

.target-category {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.1rem var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: 0.65rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.target-category.web {
    background-color: var(--primary-100);
    color: var(--primary-700);
}

.target-category.network {
    background-color: var(--success-100);
    color: var(--success-700);
}

.target-category.system {
    background-color: var(--warning-100);
    color: var(--warning-700);
}

.target-category.crypto {
    background-color: var(--purple-100);
    color: var(--purple-700);
}

.target-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: calc(var(--spacing-xs) * 0.5);
    line-height: 1.25;
}

.target-description {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.target-body {
    padding: var(--spacing-sm);
}

.target-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.meta-item i {
    width: 0.9rem;
    text-align: center;
    font-size: 0.7rem;
}

.difficulty-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: calc(var(--spacing-xs) * 0.75) var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
}

.difficulty-badge.beginner {
    background-color: var(--success-100);
    color: var(--success-700);
}

.difficulty-badge.intermediate {
    background-color: var(--warning-100);
    color: var(--warning-700);
}

.difficulty-badge.advanced {
    background-color: var(--danger-100);
    color: var(--danger-700);
}

.difficulty-badge.expert {
    background-color: var(--purple-100);
    color: var(--purple-700);
}

.target-tags {
    display: flex;
    flex-wrap: wrap;
    gap: calc(var(--spacing-xs) * 0.75);
    margin-bottom: var(--spacing-sm);
}

.tag {
    padding: calc(var(--spacing-xs) * 0.75) var(--spacing-xs);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 500;
}

.target-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm);
    border-top: 1px solid var(--border-secondary);
    background-color: var(--bg-primary);
}

.target-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-xs) * 0.75);
}

.start-button {
    display: inline-flex;
    align-items: center;
    gap: calc(var(--spacing-xs) * 0.75);
    padding: calc(var(--spacing-xs) * 0.75) var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.start-button:hover {
    background: linear-gradient(135deg, var(--primary-700), var(--primary-800));
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.start-button:active {
    transform: translateY(0);
}

.status-indicator {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 0.6rem;
    height: 0.6rem;
    border-radius: 50%;
    background-color: var(--success-500);
    box-shadow: 0 0 0 2px var(--bg-secondary);
}

.status-indicator.maintenance {
    background-color: var(--warning-500);
}

.status-indicator.offline {
    background-color: var(--danger-500);
}

/* ==========================================================================
   响应式和动画效果
   ========================================================================== */

@media (max-width: 640px) {
    .navbar-container {
        padding: 0 var(--spacing-sm);
    }
    
    .page-header {
        height: 320px;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .welcome-message {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    

    
    .filters-container {
        gap: var(--spacing-md);
    }
    
    .filter-tabs {
        grid-column: 1 / -1;
    }
    
    .targets-section {
        padding: var(--spacing-lg) 0;
    }
    
    /* 在小屏幕上简化背景装饰 */
    .bg-grid {
        opacity: 0.3;
    }
    
    .floating-icon {
        display: none;
    }
    
    .circle-1,
    .circle-2 {
        opacity: 0.3;
    }
    
    .circle-3 {
        display: none;
    }
}

/* 加载动画 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.loading::after {
    content: '';
    width: 2rem;
    height: 2rem;
    border: 2px solid var(--border-primary);
    border-top: 2px solid var(--primary-600);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 淡入动画 */
.fade-in {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 脉冲动画 */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* 新增动画关键帧 */
@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

@keyframes floatIcon {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.6;
    }
    25% {
        transform: translateY(-10px) rotate(2deg);
        opacity: 0.8;
    }
    75% {
        transform: translateY(5px) rotate(-2deg);
        opacity: 0.4;
    }
}

@keyframes gridMove {
    0% {
        background-position: 0 0, 0 0;
    }
    100% {
        background-position: 30px 30px, 30px 30px;
    }
}

@keyframes expandAccent {
    0% {
        width: 0;
        opacity: 0;
    }
    100% {
        width: 60px;
        opacity: 1;
    }
}

@keyframes slideInLeft {
    0% {
        transform: translateX(-30px);
        opacity: 0;
    }
    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-8px);
    }
    60% {
        transform: translateY(-4px);
    }
}