/* ========================================
   Snipaste Website - Enhanced Stylesheet
   Rich Colors, Icons, and Interactive Effects
   ======================================== */

:root {
    /* 主色系 - 增强的蓝色渐变 */
    --color-primary: #3b82f6;
    --color-primary-dark: #1e40af;
    --color-primary-light: #60a5fa;
    --color-primary-lighter: #dbeafe;
    
    /* 补充色系 */
    --color-secondary: #10b981;
    --color-secondary-dark: #047857;
    --color-secondary-light: #6ee7b7;
    
    /* 强调色 */
    --color-accent: #f59e0b;
    --color-accent-light: #fcd34d;
    
    /* 危险色 */
    --color-danger: #ef4444;
    
    /* 成功色 */
    --color-success: #10b981;
    
    /* 背景色 */
    --color-bg-hero: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #0ea5e9 100%);
    --color-bg-light: #f8fafc;
    --color-bg-lighter: #f1f5f9;
    --color-bg-white: #ffffff;
    --color-bg-dark: #1f2937;
    --color-bg-darker: #111827;
    
    /* 文字色 */
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-lighter: #9ca3af;
    --color-text-white: #ffffff;
    
    /* 边框色 */
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    
    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;
    --font-size-5xl: 48px;
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* 圆角 */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.2);
    
    /* 过渡 */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Reset & Base Styles
   ======================================== */

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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-white);
    overflow-x: hidden;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h1 { font-size: var(--font-size-5xl); }
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); }

ul, ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

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

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

/* ========================================
   Container & Layout
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
}

.main-content {
    min-height: calc(100vh - 200px);
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-bottom: 2px solid #e0e7ff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
    backdrop-filter: blur(10px);
}

.navbar .container {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    gap: var(--spacing-md);
}

.navbar-brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    background: linear-gradient(135deg, #3b82f6, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 24px;
}

.logo img {
    height: 28px;
    width: auto;
    padding-top: 5px;
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-xl);
    margin-left: auto;
    padding-right: 35px;
}

.nav-link {
    color: var(--color-text);
    font-weight: 500;
    font-size: var(--font-size-base);
    padding: var(--spacing-sm) 0;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-base);
    white-space: nowrap;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
    margin-left: var(--spacing-md);
}

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

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    text-decoration: none;
    user-select: none;
    -webkit-user-select: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width var(--transition-base), height var(--transition-base);
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #0ea5e9);
    color: var(--color-text-white);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1e40af, #0284c7);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: linear-gradient(135deg, #10b981, #059669);
    color: var(--color-text-white);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #047857, #065f46);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-text-white);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

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

.btn-block {
    display: block;
    width: 100%;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-hero);
    color: var(--color-text-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.hero-tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-text-white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    word-break: break-word;
    color: var(--color-text-white);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    color: var(--color-text-white);
}

.hero-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    opacity: 0.9;
    color: var(--color-text-white);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    width: 100%;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-value {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent-light);
}

.stat-label {
    font-size: var(--font-size-base);
    opacity: 0.9;
    color: var(--color-text-white);
}

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

.page-header {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #0ea5e9 100%);
    color: var(--color-text-white);
    text-align: center;
}

.page-header h1 {
    color: var(--color-text-white);
    word-break: break-word;
}

.page-header p {
    font-size: var(--font-size-lg);
    opacity: 0.95;
    color: var(--color-text-white);
}

/* ========================================
   Sections
   ======================================== */

section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

section:nth-child(even) {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

section h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, #dbeafe, #e0e7ff);
    color: var(--color-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Features Section
   ======================================== */

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

.feature-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.15);
    border-color: var(--color-primary-lighter);
}

.feature-icon {
    font-size: 56px;
    margin-bottom: var(--spacing-md);
    display: block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.feature-card h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.feature-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.feature-list {
    list-style: none;
    margin: 0;
    text-align: left;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

.feature-list li:before {
    content: "✓";
    color: var(--color-secondary);
    font-weight: bold;
    margin-right: var(--spacing-xs);
    flex-shrink: 0;
    font-size: 18px;
}

/* ========================================
   Download Section
   ======================================== */

.download-section {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.platform-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-base);
    border: 2px solid var(--color-border-light);
    position: relative;
    overflow: hidden;
}

.platform-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    transition: all var(--transition-base);
}

.platform-card:hover {
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.15);
    transform: translateY(-4px);
    border-color: var(--color-primary-lighter);
}

.platform-card:hover::before {
    top: -25%;
    right: -25%;
}

.platform-icon {
    font-size: 56px;
    margin-bottom: var(--spacing-md);
    display: block;
}

.platform-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.platform-info {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Steps Section
   ======================================== */

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

.step-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    border: 2px solid var(--color-border-light);
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.1);
    border-color: var(--color-primary-lighter);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #3b82f6, #0ea5e9);
    color: var(--color-text-white);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.step-icon {
    font-size: 36px;
    margin-bottom: var(--spacing-md);
    display: block;
}

.step-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.step-card p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ========================================
   Testimonials Section
   ======================================== */

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

.testimonial-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--color-primary);
    transition: all var(--transition-base);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.testimonial-card:hover {
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.15);
    transform: translateY(-4px);
}

.testimonial-avatar {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.testimonial-name {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.testimonial-role {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    font-style: italic;
}

.testimonial-rating {
    color: #fbbf24;
    font-size: var(--font-size-sm);
}

/* ========================================
   Blog Section
   ======================================== */

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

.blog-card {
    background: var(--color-bg-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    border: 2px solid var(--color-border-light);
}

.blog-card:hover {
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.15);
    transform: translateY(-8px);
    border-color: var(--color-primary-lighter);
}

.blog-image {
    width: 100%;
    height: 200px;
    /*background: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%);*/
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.blog-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
}

.blog-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-date {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.blog-card h3 {
    margin-bottom: var(--spacing-md);
    flex: 1;
    color: var(--color-text);
}

.blog-excerpt {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    flex: 1;
}

.blog-link {
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: auto;
    transition: all var(--transition-base);
}

.blog-link:hover {
    gap: var(--spacing-md);
    color: var(--color-primary-dark);
}

/* ========================================
   Article Page
   ======================================== */

.article-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.article-header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 2px solid var(--color-border);
}

.article-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.article-meta {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.article-body {
    line-height: 1.9;
    color: var(--color-text);
}

.article-body h2 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.article-body h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.article-body p {
    margin-bottom: var(--spacing-lg);
}

.article-body ul,
.article-body ol {
    margin-bottom: var(--spacing-lg);
}

.article-body li {
    margin-bottom: var(--spacing-md);
}

.article-body code {
    background: var(--color-bg-lighter);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--color-danger);
}

.article-body pre {
    background: var(--color-bg-darker);
    color: var(--color-text-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

.article-body blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    color: var(--color-text-light);
    font-style: italic;
}

.article-footer {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--color-border);
}

.article-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.article-tag {
    display: inline-block;
    background: linear-gradient(135deg, #dbeafe, #e0e7ff);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.article-nav-item {
    padding: var(--spacing-lg);
    background: var(--color-bg-lighter);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.article-nav-item:hover {
    background: var(--color-bg-light);
    transform: translateX(4px);
}

/* ========================================
   FAQ Section
   ======================================== */

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background: var(--color-bg-white);
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--color-primary-lighter);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.1);
}

.faq-question {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-base);
    user-select: none;
    -webkit-user-select: none;
}

.faq-question:hover {
    background: linear-gradient(135deg, #f1f5f9 0%, #e0e7ff 100%);
}

.faq-question h3 {
    margin-bottom: 0;
    flex: 1;
    text-align: left;
    color: var(--color-text);
}

.faq-toggle {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    font-weight: bold;
    transition: transform var(--transition-base);
    flex-shrink: 0;
    margin-left: var(--spacing-md);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-lighter);
    border-radius: 50%;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
    background: var(--color-primary);
    color: var(--color-text-white);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    padding: 0 var(--spacing-lg);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: var(--spacing-lg);
}

.faq-answer p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ========================================
   Support Section
   ======================================== */

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.support-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    border: 2px solid var(--color-border-light);
}

.support-card:hover {
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.15);
    transform: translateY(-4px);
    border-color: var(--color-primary-lighter);
}

.support-icon {
    font-size: 56px;
    margin-bottom: var(--spacing-md);
}

.support-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.support-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

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

.footer {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: var(--color-text-white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

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

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-white);
    font-size: var(--font-size-lg);
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: unset;
    background-clip: unset;
}

.footer-section ul {
    list-style: none;
    margin: 0;
}

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

.footer-section a {
    color: #d1d5db;
    transition: all var(--transition-base);
}

.footer-section a:hover {
    color: var(--color-primary-light);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: #9ca3af;
}

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

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.social-link {
    color: var(--color-text-white);
    font-size: var(--font-size-xl);
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.social-link:hover {
    color: var(--color-primary);
    background: rgba(59, 130, 246, 0.2);
    transform: translateY(-4px);
}

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

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

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }

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

.divider {
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
    margin: var(--spacing-2xl) 0;
}

/* ========================================
   Scrollbar Styling
   ======================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-light);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--color-primary-dark), var(--color-secondary-dark));
}

/* ========================================
   Animations
   ======================================== */

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.animate-slide-in {
    animation: slideInUp 0.6s ease-out;
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}