/* ========================================
   Modern IDC Cloud Services - Main Styles
   ======================================== */

/* CSS Variables */
:root {
    --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;
    
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    
    --emerald-500: #10b981;
    --emerald-600: #059669;
    --violet-500: #8b5cf6;
    --violet-600: #7c3aed;
    --amber-500: #f59e0b;
    --amber-600: #d97706;
    
    --gradient-primary: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 100%);
    --gradient-dark: linear-gradient(135deg, var(--slate-900) 0%, var(--slate-800) 100%);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background-color: var(--slate-50);
    color: var(--slate-900);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

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

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

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--slate-200);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--slate-900);
}

.logo-text {
    font-weight: 700;
}

.nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.625rem 1rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--slate-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--slate-700);
    border: 1.5px solid var(--slate-300);
}

.btn-outline:hover {
    border-color: var(--slate-400);
    background: var(--slate-50);
    color: var(--slate-900);
}

.btn-outline-light {
    background: transparent;
    color: white;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.1);
}

.btn-block {
    width: 100%;
}

/* Language Switcher */
.language-switcher {
    margin-left: 0.5rem;
}

.lang-select {
    appearance: none;
    padding: 0.5rem 2rem 0.5rem 0.875rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate-700);
    background: var(--slate-100);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-select:hover {
    border-color: var(--slate-300);
}

.lang-select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 10px;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--slate-700);
    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(7px, -6px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--slate-200);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
}

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

.mobile-nav-menu {
    padding: 1rem;
}

.mobile-nav-menu li {
    border-bottom: 1px solid var(--slate-100);
}

.mobile-nav-menu li:last-child {
    border-bottom: none;
}

.mobile-nav-menu a {
    display: block;
    padding: 1rem;
    font-weight: 500;
    color: var(--slate-700);
    transition: all var(--transition-fast);
}

.mobile-nav-menu a:hover {
    color: var(--primary-600);
    background: var(--primary-50);
    border-radius: var(--radius-md);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.1) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    filter: blur(60px);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-300);
    margin-bottom: 2rem;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--emerald-500);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    color: white;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-300) 0%, var(--primary-100) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--slate-300);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 3rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    backdrop-filter: blur(10px);
}

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

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--slate-400);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ========================================
   Section Styles
   ======================================== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: var(--primary-100);
    color: var(--primary-700);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--slate-600);
    line-height: 1.7;
}

/* ========================================
   Products Section
   ======================================== */
.products {
    background: white;
}

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

.product-card {
    position: relative;
    padding: 2rem;
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-200);
}

.product-card.featured {
    background: var(--gradient-primary);
    border-color: transparent;
}

.product-card.featured .product-title,
.product-card.featured .product-desc,
.product-card.featured .product-features li {
    color: white;
}

.product-card.featured .check {
    background: rgba(255, 255, 255, 0.3);
    color: white;
}

.product-card.featured .btn-primary {
    background: white;
    color: var(--primary-600);
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.375rem 0.875rem;
    background: var(--amber-500);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
}

.product-icon {
    margin-bottom: 1.5rem;
}

.product-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 0.75rem;
}

.product-desc {
    font-size: 0.9375rem;
    color: var(--slate-600);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.product-features {
    margin-bottom: 1.5rem;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.9375rem;
    color: var(--slate-700);
}

.check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: var(--emerald-500);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing {
    background: var(--slate-50);
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
    padding: 0.375rem;
    background: var(--slate-200);
    border-radius: 50px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--slate-600);
    background: transparent;
    border-radius: 50px;
    transition: all var(--transition-fast);
}

.toggle-btn.active {
    background: white;
    color: var(--slate-900);
    box-shadow: var(--shadow-sm);
}

.toggle-badge {
    padding: 0.125rem 0.5rem;
    background: var(--slate-200);
    color: var(--slate-600);
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: 50px;
}

.toggle-badge.hot {
    background: var(--amber-500);
    color: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.pricing-card {
    position: relative;
    padding: 2rem;
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

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

.pricing-card.popular {
    border-color: var(--primary-500);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular:hover {
    box-shadow: var(--shadow-2xl);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 1rem;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
}

.popular-badge svg {
    width: 14px;
    height: 14px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 0.5rem;
}

.plan-desc {
    font-size: 0.875rem;
    color: var(--slate-500);
}

.pricing-price {
    text-align: center;
    padding: 1.5rem 0;
    border-top: 1px solid var(--slate-100);
    border-bottom: 1px solid var(--slate-100);
    margin-bottom: 1.5rem;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--slate-500);
    vertical-align: top;
}

.amount {
    font-size: 4rem;
    font-weight: 800;
    color: var(--slate-900);
    line-height: 1;
}

.period {
    font-size: 1rem;
    color: var(--slate-500);
}

.pricing-features {
    margin-bottom: 1.5rem;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    font-size: 0.9375rem;
    color: var(--slate-700);
}

.feature-main {
    font-weight: 600;
    color: var(--slate-900);
}

.feature-icon {
    font-size: 1.25rem;
}

.pricing-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    color: var(--primary-700);
}

.pricing-notice svg {
    flex-shrink: 0;
    color: var(--primary-500);
}

/* ========================================
   Features Section
   ======================================== */
.features {
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-icon-box {
    display: inline-flex;
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 0.75rem;
}

.feature-desc {
    font-size: 0.9375rem;
    color: var(--slate-600);
    line-height: 1.7;
}

/* ========================================
   Datacenter Section
   ======================================== */
.datacenter {
    background: var(--slate-50);
}

.datacenter-map {
    margin-bottom: 3rem;
}

.map-placeholder {
    position: relative;
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--slate-800) 0%, var(--slate-900) 100%);
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.map-node {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.node-dot {
    width: 12px;
    height: 12px;
    background: var(--slate-500);
    border: 3px solid var(--slate-700);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.node-dot.active {
    background: var(--primary-500);
    border-color: var(--primary-300);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
    animation: pulse 2s infinite;
}

.node-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--slate-400);
    background: rgba(15, 23, 42, 0.8);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.datacenter-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    text-align: center;
}

.dc-stat {
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.dc-stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-600);
    margin-bottom: 0.5rem;
}

.dc-stat-label {
    font-size: 0.875rem;
    color: var(--slate-600);
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    padding: 80px 0;
    background: var(--gradient-dark);
}

.cta-card {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(30, 64, 175, 0.2) 100%);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.cta-content {
    max-width: 500px;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.125rem;
    color: var(--slate-300);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.cta-decoration {
    position: absolute;
    right: -100px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.5;
}

.cta-decoration svg {
    width: 400px;
    height: 400px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--slate-900);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.footer-desc {
    font-size: 0.9375rem;
    color: var(--slate-400);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--slate-800);
    color: var(--slate-400);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-600);
    color: white;
    transform: translateY(-2px);
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    font-size: 0.9375rem;
    color: var(--slate-400);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-400);
    padding-left: 0.5rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--slate-800);
}

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

.record-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.record-info span {
    font-size: 0.875rem;
    color: var(--slate-500);
}

.copyright {
    font-size: 0.875rem;
    color: var(--slate-500);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-col:first-child {
        grid-column: span 3;
    }
}

@media (max-width: 768px) {
    .nav, .header-actions {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stat-divider {
        width: 40px;
        height: 1px;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    .product-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.popular {
        transform: scale(1);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-card {
        flex-direction: column;
        text-align: center;
        padding: 2rem;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .cta-decoration {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-col:first-child {
        grid-column: span 1;
    }
    
    .record-info {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .pricing-toggle {
        width: 100%;
        justify-content: stretch;
    }
    
    .toggle-btn {
        flex: 1;
        justify-content: center;
    }
    
    .map-placeholder {
        height: 250px;
    }
    
    .datacenter-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========================================
   Utilities
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }