/* ==========================================================================
   FatCat Cloud (肥猫云官网) - CSS Stylesheet
   Theme: Premium Monochrome (Black & White) with Glassmorphism and Glows
   ========================================================================== */

/* Font Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables */
:root {
    --font-heading: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Monochrome Palette */
    --bg-deep: #050505;
    --bg-card: #0c0c0d;
    --bg-card-hover: #121214;
    --bg-header: rgba(5, 5, 5, 0.75);
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-bright: rgba(255, 255, 255, 0.2);
    --border-active: rgba(255, 255, 255, 0.6);
    
    --text-pure: #ffffff;
    --text-bright: #f3f4f6;
    --text-gray: #9ca3af;
    --text-muted: #6b7280;
    
    --glow-color: rgba(255, 255, 255, 0.15);
    --glow-strength: 0 0 20px var(--glow-color);
    
    /* Latency Colors (Monochrome styled but semantic) */
    --status-good: #ffffff;
    --status-good-bg: rgba(255, 255, 255, 0.1);
    --status-warn: #a3a3a3;
    --status-warn-bg: rgba(163, 163, 163, 0.1);
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    
    --max-width: 1200px;
}

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

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

body {
    background-color: var(--bg-deep);
    color: var(--text-bright);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-deep);
}
::-webkit-scrollbar-thumb {
    background: #222;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #333;
}

/* Canvas Background */
#canvas-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
}

/* Layout Utilities */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 8rem 0 4rem;
    position: relative;
}

/* Typography & Headers */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-pure);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(180deg, #ffffff 40%, #888888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--bg-header);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition-smooth);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-pure);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.logo svg {
    fill: currentColor;
    width: 32px;
    height: 32px;
}

.logo:hover {
    opacity: 0.9;
}

nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

nav a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
    padding: 0.5rem 0;
}

nav a:hover, nav a.active {
    color: var(--text-pure);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--text-pure);
    transition: var(--transition-smooth);
}

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

.nav-cta {
    background: var(--text-pure);
    color: var(--bg-deep) !important;
    padding: 0.6rem 1.2rem !important;
    border-radius: var(--border-radius-sm);
    font-weight: 600 !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background: #e5e5e5;
    box-shadow: var(--glow-strength);
    transform: translateY(-1px);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-pure);
    cursor: pointer;
    font-size: 1.5rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 120px;
    position: relative;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    z-index: 10;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-bright);
    margin-bottom: 2rem;
    backdrop-filter: blur(5px);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--text-pure);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--text-pure);
    animation: pulse 2s infinite;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.04em;
    background: linear-gradient(180deg, #ffffff 30%, #a3a3a3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-primary {
    background: var(--text-pure);
    color: var(--bg-deep);
    border: 1px solid var(--text-pure);
}

.btn-primary:hover {
    background: #e5e5e5;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.15);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-pure);
    border: 1px solid var(--border-bright);
    backdrop-filter: blur(5px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--text-pure);
    transform: translateY(-2px);
}

/* Core Advantages Section */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.adv-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    padding: 3rem 2rem;
    border-radius: var(--border-radius-md);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.adv-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-bright);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}

.adv-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--text-pure);
}

.adv-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.adv-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Pricing Packages Section */
.pricing-toggle-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.pricing-toggle-label {
    font-size: 0.95rem;
    color: var(--text-gray);
    cursor: pointer;
    user-select: none;
    transition: var(--transition-smooth);
}

.pricing-toggle-label.active {
    color: var(--text-pure);
    font-weight: 600;
}

.pricing-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.pricing-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-pure);
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #1a1a1a;
    border-color: var(--border-bright);
}

input:checked + .slider:before {
    transform: translateX(22px);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    align-items: stretch;
}

.price-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-md);
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-smooth);
}

.price-card.popular {
    border-color: var(--text-pure);
    transform: scale(1.03);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
}

.popular-badge {
    position: absolute;
    top: 0;
    right: 50%;
    transform: translate(50%, -50%);
    background: var(--text-pure);
    color: var(--bg-deep);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.3rem 0.9rem;
    border-radius: 50px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.price-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-bright);
}

.price-card.popular:hover {
    transform: translateY(-5px) scale(1.03);
    border-color: var(--text-pure);
}

.price-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.price-desc {
    color: var(--text-gray);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.price-val {
    display: flex;
    align-items: baseline;
    margin-bottom: 2.5rem;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 700;
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
    font-family: var(--font-heading);
}

.price-period {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-left: 0.35rem;
}

.price-features {
    list-style: none;
    margin-bottom: 3rem;
    flex-grow: 1;
}

.price-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.price-features li svg {
    color: var(--text-pure);
    flex-shrink: 0;
}

.price-features li.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
}

.price-features li.disabled svg {
    color: var(--text-muted);
}

.price-btn {
    width: 100%;
    justify-content: center;
}

/* Node Latency and Status Section */
.status-container {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-md);
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 1.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.status-summary {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-pure);
    box-shadow: 0 0 10px var(--text-pure);
}

.status-summary-text {
    font-weight: 600;
    font-size: 1.1rem;
}

.status-refresh-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    color: var(--text-pure);
    padding: 0.5rem 1.2rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.status-refresh-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-pure);
}

.status-refresh-btn svg {
    transition: transform 0.5s ease;
}

.status-refresh-btn.spinning svg {
    transform: rotate(360deg);
}

.nodes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.node-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-sm);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
}

.node-card:hover {
    border-color: var(--border-bright);
    background: rgba(255, 255, 255, 0.04);
}

.node-info-side {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.node-name {
    font-weight: 600;
    font-size: 1rem;
}

.node-flag {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.node-stat-side {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
}

.node-latency {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
}

.node-status-badge {
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-weight: 500;
}

.node-status-badge.good {
    background: var(--status-good-bg);
    color: var(--status-good);
}

.node-status-badge.warn {
    background: var(--status-warn-bg);
    color: var(--status-warn);
}

/* User Reviews Section */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-md);
    padding: 2.5rem 2rem;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.review-card:hover {
    border-color: var(--border-bright);
    transform: translateY(-3px);
}

.review-content {
    color: var(--text-bright);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #222;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--text-pure);
    border: 1px solid var(--border-subtle);
}

.author-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
}

.author-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
    color: var(--text-pure);
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-sm);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-item:hover {
    border-color: var(--border-bright);
}

.faq-question {
    width: 100%;
    padding: 1.5rem 2rem;
    background: none;
    border: none;
    text-align: left;
    color: var(--text-pure);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.faq-question svg {
    transition: transform 0.3s ease;
    color: var(--text-gray);
    flex-shrink: 0;
}

.faq-item.active {
    border-color: var(--text-pure);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
    color: var(--text-pure);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

.faq-answer-inner {
    padding: 0 2rem 1.5rem;
}

/* Knowledge Base & Tutorials Section */
.kb-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-md);
    padding: 2.5rem;
    min-height: 600px;
}

.kb-sidebar {
    border-right: 1px solid var(--border-subtle);
    padding-right: 2rem;
}

.kb-search-container {
    position: relative;
    margin-bottom: 2rem;
}

.kb-search-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-sm);
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    color: var(--text-pure);
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.kb-search-input:focus {
    outline: none;
    border-color: var(--text-pure);
    background: rgba(255, 255, 255, 0.05);
}

.kb-search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.kb-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.kb-menu-btn {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    color: var(--text-gray);
    padding: 0.85rem 1rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kb-menu-btn:hover {
    color: var(--text-pure);
    background: rgba(255, 255, 255, 0.03);
}

.kb-menu-item.active .kb-menu-btn {
    color: var(--text-pure);
    background: rgba(255, 255, 255, 0.06);
    font-weight: 600;
    border-left: 2px solid var(--text-pure);
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

.kb-content-pane {
    position: relative;
    padding-left: 1rem;
}

.kb-article {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.kb-article.active {
    display: block;
}

.kb-article-header {
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 1.5rem;
}

.kb-article-header h3 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.kb-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.kb-meta span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.kb-body {
    color: var(--text-bright);
    font-size: 1.05rem;
    line-height: 1.8;
}

.kb-body p {
    margin-bottom: 1.5rem;
}

.kb-body h4 {
    font-size: 1.35rem;
    margin: 2.5rem 0 1rem;
    font-weight: 600;
}

.kb-body ul, .kb-body ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.kb-body li {
    margin-bottom: 0.5rem;
}

.kb-body code {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-subtle);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: monospace;
}

.kb-body pre {
    background: #000000;
    border: 1px solid var(--border-subtle);
    padding: 1.25rem;
    border-radius: var(--border-radius-sm);
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.kb-body pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.9rem;
    color: var(--text-bright);
}

.kb-body blockquote {
    border-left: 3px solid var(--text-pure);
    padding-left: 1.25rem;
    margin: 1.5rem 0;
    color: var(--text-gray);
    font-style: italic;
}

.kb-no-results {
    display: none;
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.kb-no-results svg {
    margin-bottom: 1rem;
}

/* Call to Action Section */
.cta-section {
    padding: 6rem 0;
}

.cta-box {
    background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.05), transparent), var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-lg);
    padding: 5rem 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.cta-box p {
    color: var(--text-gray);
    font-size: 1.15rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-box .btn {
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.05);
}

/* Footer Section */
footer {
    border-top: 1px solid var(--border-subtle);
    background: #020202;
    padding: 5rem 0 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-top: 1rem;
    max-width: 320px;
    line-height: 1.6;
}

.footer-links h5 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-subtle);
    padding-top: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-meta-links {
    display: flex;
    gap: 1.5rem;
}

.footer-meta-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}

.footer-meta-links a:hover {
    color: var(--text-pure);
}

/* Keyframe Animations */
@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 8px rgba(255, 255, 255, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .kb-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .kb-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-subtle);
        padding-right: 0;
        padding-bottom: 2rem;
    }
    .kb-menu {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .kb-menu-btn {
        width: auto;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    .menu-toggle {
        display: block;
    }
    
    nav {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: #09090a;
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border-subtle);
        box-shadow: 0 10px 20px rgba(0,0,0,0.5);
    }
    
    nav.open {
        display: flex;
    }
    
    nav a::after {
        display: none;
    }
    
    .hero h1 {
        font-size: 2.75rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .status-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.25rem;
    }
    .hero-ctas {
        flex-direction: column;
        gap: 1rem;
    }
    .btn {
        width: 100%;
        justify-content: center;
    }
    .pricing-toggle-wrapper {
        flex-wrap: wrap;
    }
}