/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

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

/* Header Styles */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    gap: 2rem;
}

.nav-brand h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-brand i {
    color: #4ade80;
}

.tagline {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

/* Signup Form Styles */
.signup-form {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 350px;
}

.signup-form h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-group input:focus {
    outline: none;
    border-color: #4ade80;
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, #4ade80, #22c55e);
    color: white;
    width: 100%;
    transform: translateY(0);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(74, 222, 128, 0.4);
}

.form-note {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h2 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #1e293b;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.3rem;
    color: #64748b;
    margin-bottom: 3rem;
    line-height: 1.6;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    color: #4c51bf;
    font-weight: 600;
}

.feature-badge i {
    color: #4ade80;
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: white;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    color: #1e293b;
}

.feature-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 6rem;
}

.feature-showcase.reverse {
    direction: rtl;
}

.feature-showcase.reverse > * {
    direction: ltr;
}

.feature-content h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #1e293b;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.feature-content h3 i {
    color: #4c51bf;
}

.feature-content p {
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 1rem;
    color: #475569;
}

.feature-list i {
    color: #4ade80;
    font-size: 0.9rem;
}

.feature-image {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    aspect-ratio: 16/10;
}

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

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

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
    padding: 2rem;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Technical Highlights */
.tech-highlights {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tech-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tech-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.tech-icon {
    font-size: 3rem;
    color: #4c51bf;
    margin-bottom: 1.5rem;
}

.tech-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.tech-card p {
    color: #64748b;
    line-height: 1.6;
}

/* Supported Systems */
.supported-systems {
    padding: 6rem 0;
    background: white;
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.system-group {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 3rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.system-group h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.system-group ul {
    list-style: none;
    padding: 0;
}

.system-group li {
    padding: 0.75rem 0;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.system-group li:last-child {
    border-bottom: none;
}

/* Product Roadmap */
.roadmap {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.roadmap-intro {
    text-align: center;
    font-size: 1.2rem;
    color: #64748b;
    max-width: 800px;
    margin: 0 auto 4rem;
    line-height: 1.6;
}

.roadmap-timeline {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.roadmap-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2.5rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.roadmap-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.roadmap-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 35px;
    bottom: -2rem;
    width: 2px;
    height: 2rem;
    background: linear-gradient(135deg, #4ade80, #22c55e);
}

.roadmap-icon {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #4c51bf, #667eea);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: 0 8px 25px rgba(76, 81, 191, 0.3);
}

.roadmap-content {
    flex: 1;
}

.roadmap-content h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.roadmap-content p {
    font-size: 1.1rem;
    color: #64748b;
    line-height: 1.7;
    margin: 0;
}

/* Call to Action */
.cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.btn-cta {
    background: linear-gradient(135deg, #4ade80, #22c55e);
    color: white;
    font-size: 1.2rem;
    padding: 1rem 3rem;
    border-radius: 50px;
    box-shadow: 0 8px 25px rgba(74, 222, 128, 0.4);
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(74, 222, 128, 0.6);
}

.cta-note {
    margin-top: 2rem;
    font-size: 1.1rem;
    opacity: 0.8;
}

.cta-note i {
    color: #f87171;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-brand i {
    color: #4ade80;
}

.footer-brand p {
    color: #94a3b8;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #e2e8f0;
}

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

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #4ade80;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .nav {
        flex-direction: column;
        gap: 3rem;
        text-align: center;
    }
    
    .signup-form {
        min-width: auto;
        width: 100%;
        max-width: 400px;
    }
    
    .feature-showcase {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .feature-showcase.reverse {
        direction: ltr;
    }
    
    .hero-content h2 {
        font-size: 2.8rem;
    }
    
    .hero-features {
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2.2rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .feature-content h3 {
        font-size: 1.6rem;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .systems-grid {
        grid-template-columns: 1fr;
    }
    
    .roadmap-item {
        padding: 2rem;
        gap: 1.5rem;
    }
    
    .roadmap-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .roadmap-content h3 {
        font-size: 1.5rem;
    }
    
    .roadmap-content p {
        font-size: 1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .cta-content h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav {
        padding: 0 15px;
    }
    
    .nav-brand h1 {
        font-size: 2rem;
    }
    
    .signup-form {
        padding: 1.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
    }
    
    .feature-badge {
        justify-content: center;
        text-align: center;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .feature-content h3 {
        font-size: 1.4rem;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .tech-card {
        padding: 2rem;
    }
    
    .system-group {
        padding: 2rem;
    }
    
    .roadmap-item {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .roadmap-item:not(:last-child)::after {
        display: none;
    }
    
    .roadmap-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
        align-self: center;
    }
    
    .roadmap-content h3 {
        font-size: 1.3rem;
    }
    
    .roadmap-intro {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
    }
}