/* ===== Demo Overview Styles ===== */

/* Reset & Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0066ff;
    --secondary-color: #6366f1;
    --accent-color: #10b981;
    --bg-light: #ffffff;
    --bg-lighter: #f9fafb;
    --bg-card: #f3f4f6;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    font-family: monospace;
    text-decoration: none;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

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

/* ===== Hero Section ===== */
.hero {
    padding: 8rem 2rem 4rem;
    background: linear-gradient(135deg, var(--bg-lighter) 0%, var(--bg-light) 100%);
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero .subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.hero .description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===== Demos Grid ===== */
.demos {
    padding: 4rem 0;
}

.demos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.demo-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.demo-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.demo-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: var(--bg-lighter);
}

.demo-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.demo-card:hover .demo-image img {
    transform: scale(1.05);
}

.demo-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 102, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.demo-card:hover .demo-overlay {
    opacity: 1;
}

.demo-link {
    color: white;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.demo-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.demo-content {
    padding: 2rem;
}

.demo-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.demo-content h3 {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.demo-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.demo-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.feature-tag {
    background: var(--bg-lighter);
    color: var(--text-secondary);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-tag i {
    color: var(--accent-color);
    font-size: 0.75rem;
}

/* ===== CTA Section ===== */
.cta-section {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--bg-lighter);
    border-radius: 16px;
    margin-top: 2rem;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.cta-section p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* ===== Footer ===== */
.footer {
    background: var(--text-primary);
    color: var(--bg-lighter);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer .logo {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

/* ===== Responsive Design ===== */

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1.125rem;
    }

    .hero .description {
        font-size: 1rem;
    }

    .demos-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .cta-section h2 {
        font-size: 2rem;
    }

    .cta-section p {
        font-size: 1rem;
    }

    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 6rem 1rem 3rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .demo-content {
        padding: 1.5rem;
    }

    .cta-button {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
}