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

/* CSS Variables */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background: #ffffff;
    --background-secondary: #f9fafb;
    --surface: #ffffff;
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --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);
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --text-light: #9ca3af;
        --background: #111827;
        --background-secondary: #1f2937;
        --surface: #374151;
        --border: #4b5563;
        --border-light: #374151;
    }
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-primary.large, .btn-secondary.large {
    padding: 16px 32px;
    font-size: 18px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-brand i {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-button {
    background: var(--gradient-primary);
    color: white;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-button:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(120, 219, 255, 0.3) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(255,255,255,0.1), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.1), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(255,255,255,0.1), transparent);
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: sparkle 10s linear infinite;
}

@keyframes sparkle {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-200px); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    color: white;
}

.hero-title {
    margin-bottom: 24px;
    font-weight: 700;
    line-height: 1.1;
}

.hero-description {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 32px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-buttons .btn-primary {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-buttons .btn-secondary {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
}

.hero-stats {
    display: flex;
    gap: 32px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: white;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

/* Dashboard Preview */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.dashboard-preview {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 20px;
    width: 100%;
    max-width: 500px;
    box-shadow: var(--shadow-xl);
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.preview-controls {
    display: flex;
    gap: 6px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #ff5f56; }
.control.yellow { background: #ffbd2e; }
.control.green { background: #27ca3f; }

.preview-title {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
}

.camera-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.camera-tile {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 12px;
    transition: var(--transition);
}

.camera-tile.active {
    border-color: rgba(16, 185, 129, 0.5);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.camera-status {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-dot.online {
    background: #10b981;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.status-dot.offline {
    background: #ef4444;
}

.camera-status span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 12px;
    font-weight: 500;
}

.camera-feed {
    width: 100%;
    height: 60px;
    background: 
        linear-gradient(45deg, rgba(255,255,255,0.1) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(255,255,255,0.1) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.1) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.1) 75%);
    background-size: 8px 8px;
    background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
    border-radius: 4px;
    margin-bottom: 8px;
    animation: stream 2s linear infinite;
}

.camera-feed.offline {
    background: rgba(239, 68, 68, 0.1);
    animation: none;
}

@keyframes stream {
    0% { background-position: 0 0, 0 4px, 4px -4px, -4px 0px; }
    100% { background-position: 8px 0, 8px 4px, 12px -4px, 4px 0px; }
}

.camera-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.7);
}

.recording {
    color: #ef4444;
    font-weight: 600;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Sections */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    background: var(--background-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--surface);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
    text-align: center;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
}

.feature-card h3 {
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Integration Section */
.integration {
    background: var(--background);
}

.integration-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.integration-item {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
}

.integration-item:last-child {
    margin-bottom: 0;
}

.integration-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-accent);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    flex-shrink: 0;
}

.integration-details h3 {
    margin-bottom: 12px;
    color: var(--text-primary);
}

.integration-details p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.integration-details ul {
    list-style: none;
}

.integration-details li {
    color: var(--text-secondary);
    padding: 4px 0;
    position: relative;
    padding-left: 20px;
}

.integration-details li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* SCADA Diagram */
.scada-diagram {
    position: relative;
    width: 400px;
    height: 400px;
    margin: 0 auto;
}

.scada-node {
    position: absolute;
    width: 120px;
    height: 80px;
    background: var(--surface);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.scada-node.central {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.scada-node.wincc {
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.scada-node.panel {
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.scada-node.camera {
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
}

.scada-node i {
    font-size: 24px;
}

.connection-line {
    position: absolute;
    background: var(--primary-color);
    z-index: -1;
}

.line1 {
    top: 100px;
    left: 50%;
    width: 2px;
    height: 60px;
    transform: translateX(-50%);
}

.line2 {
    bottom: 100px;
    left: 50%;
    width: 2px;
    height: 60px;
    transform: translateX(-50%);
}

.line3 {
    top: 50%;
    right: 140px;
    width: 80px;
    height: 2px;
    transform: translateY(-50%);
}

.data-flow {
    position: absolute;
    font-size: 10px;
    color: var(--primary-color);
    font-weight: 600;
    background: var(--background);
    padding: 2px 6px;
    border-radius: 4px;
}

.flow1 {
    top: 80px;
    left: 55%;
}

.flow2 {
    bottom: 80px;
    left: 55%;
}

.flow3 {
    top: 45%;
    right: 100px;
}

/* Tech Stack */
.tech-stack {
    background: var(--background-secondary);
    padding: 60px 0;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.tech-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.tech-item i {
    font-size: 32px;
    color: var(--primary-color);
}

.tech-item span {
    font-weight: 500;
    color: var(--text-primary);
}

/* About Section */
.about {
    background: var(--background);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-intro {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.expertise-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.tag {
    background: var(--gradient-primary);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.developer-card {
    background: var(--surface);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.developer-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
}

.developer-card h3 {
    margin-bottom: 8px;
    color: var(--text-primary);
}

.developer-title {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.developer-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.dev-number {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

.dev-label {
    font-size: 12px;
    color: var(--text-secondary);
}

/* CTA Section */
.cta {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
    margin-bottom: 16px;
}

.cta p {
    font-size: 20px;
    margin-bottom: 32px;
    color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.cta .btn-primary {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cta .btn-secondary {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: var(--background);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    grid-column: span 2;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-logo i {
    font-size: 24px;
    color: var(--primary-color);
}

.footer-brand p {
    color: #9ca3af;
    line-height: 1.6;
}

.footer-section h4 {
    margin-bottom: 16px;
    color: var(--background);
}

.footer-section a {
    display: block;
    color: #9ca3af;
    text-decoration: none;
    margin-bottom: 8px;
    transition: var(--transition);
}

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

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid #374151;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .integration-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    
    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
    
    section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .dashboard-preview {
        padding: 12px;
    }
    
    .camera-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .scada-diagram {
        width: 300px;
        height: 300px;
    }
    
    .scada-node {
        width: 80px;
        height: 60px;
        font-size: 10px;
    }
    
    .scada-node i {
        font-size: 16px;
    }
}

/* Database Section Styles */
.database-section {
    padding: 80px 0;
    background: var(--surface);
    position: relative;
    overflow: hidden;
}

.database-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.1) 0%, rgba(56, 189, 248, 0.1) 100%);
    pointer-events: none;
}

.database-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
    position: relative;
    z-index: 2;
}

.database-card {
    background: var(--background);
    border-radius: 16px;
    padding: 30px;
    border: 2px solid rgba(74, 222, 128, 0.2);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.database-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.database-card.postgresql::before {
    background: linear-gradient(135deg, #336791, #4A90E2);
}

.database-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.database-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 24px;
    color: white;
}

.database-card.postgresql .database-icon {
    background: linear-gradient(135deg, #336791, #4A90E2);
}

.database-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.database-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.database-features {
    list-style: none;
    padding: 0;
    margin: 0 0 25px 0;
}

.database-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 14px;
}

.database-features i {
    color: var(--primary-color);
    font-size: 12px;
}

.database-config {
    background: rgba(55, 65, 81, 0.8);
    border-radius: 8px;
    padding: 15px;
    border-left: 4px solid var(--primary-color);
}

.database-card.postgresql .database-config {
    border-left-color: #4A90E2;
}

.database-config code {
    color: #10b981;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 14px;
    font-weight: 500;
}

.database-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    position: relative;
    z-index: 2;
}

.comparison-item {
    text-align: center;
    padding: 25px;
    background: var(--background);
    border-radius: 12px;
    border: 1px solid rgba(74, 222, 128, 0.2);
    box-shadow: var(--shadow-sm);
}

.comparison-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.comparison-item p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .database-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .database-comparison {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .database-card {
        padding: 20px;
    }
}