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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #334155;
    background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 100%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 50;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

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

.logo-icon {
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 0.875rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: #64748b;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #2563eb;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: #64748b;
    transition: all 0.3s ease;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: #374151;
    border: 2px solid #d1d5db;
}

.btn-outline:hover {
    background: #f9fafb;
    border-color: #9ca3af;
}

.btn-large {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

.btn-light {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-light:hover {
    background: rgba(255, 255, 255, 0.3);
}

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

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

/* Hero Section */
.hero {
    padding: 5rem 0;
    text-align: center;
}

.hero-content {
    opacity: 0;
    transform: translateY(2rem);
    animation: fadeInUp 1s ease-out forwards;
}

.hero-badge {
    display: inline-block;
    background: #dbeafe;
    color: #1d4ed8;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: bold;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #2563eb, #7c3aed, #4338ca);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
}

.hero-description {
    font-size: 1.25rem;
    color: #64748b;
    margin-bottom: 2rem;
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

/* Stats Section */
.stats {
    padding: 4rem 0;
    background: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    text-align: center;
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-number {
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: bold;
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #64748b;
    font-size: 0.875rem;
}

/* Features Section */
.features {
    padding: 5rem 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #1e293b;
}

.section-description {
    font-size: 1.25rem;
    color: #64748b;
    max-width: 32rem;
    margin: 0 auto;
}

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

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
}

.feature-card:hover {
    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.feature-icon {
    margin-bottom: 1rem;
}

.feature-icon i {
    width: 2rem;
    height: 2rem;
    font-size: 2rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.feature-description {
    color: #64748b;
    line-height: 1.6;
}

/* Technology Section */
.technology {
    padding: 5rem 0;
    background: #f8fafc;
}

.tabs {
    max-width: 64rem;
    margin: 0 auto;
}

.tab-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: white;
    border-radius: 0.5rem;
    padding: 0.25rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.tab-button {
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    color: #64748b;
}

.tab-button.active {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
}

.tab-button:hover:not(.active) {
    background: #f1f5f9;
}

.tab-content {
    position: relative;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-panel.active {
    display: block;
}

.tech-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.tech-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.tech-description {
    color: #64748b;
    margin-bottom: 2rem;
}

.tech-list {
    display: grid;
    gap: 1rem;
}

@media (min-width: 768px) {
    .tech-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.tech-item i {
    width: 1.25rem;
    height: 1.25rem;
    font-size: 1.25rem;
}

/* Investors Section */
.investors {
    padding: 5rem 0;
}

.investors-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

@media (min-width: 768px) {
    .investors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.investor-card {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.investor-card:hover {
    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.investor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.investor-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1e293b;
}

.investor-focus {
    color: #64748b;
    margin-bottom: 1rem;
}

.investor-range {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.range-label {
    font-size: 0.875rem;
    color: #64748b;
}

.range-badge {
    background: #f1f5f9;
    color: #475569;
    padding: 0.25rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.funding-goal {
    text-align: center;
}

.funding-card {
    background: linear-gradient(135deg, #dbeafe, #e0e7ff);
    border: 1px solid #bfdbfe;
    padding: 2rem;
    border-radius: 1rem;
    max-width: 32rem;
    margin: 0 auto;
}

.funding-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1d4ed8;
    margin-bottom: 0.5rem;
}

.funding-subtitle {
    color: #64748b;
    margin-bottom: 1rem;
}

.funding-amount {
    font-size: 2.5rem;
    font-weight: bold;
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.funding-runway {
    color: #64748b;
    margin-bottom: 1rem;
}

.funding-details {
    display: flex;
    justify-content: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: #64748b;
}

/* CTA Section */
.cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    text-align: center;
}

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

.cta-description {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

/* Contact Section */
.contact {
    padding: 5rem 0;
}

.contact-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

.contact-icon {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
}

.contact-icon i {
    font-size: 1.5rem;
}

.contact-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.contact-info {
    color: #64748b;
    margin-bottom: 0.5rem;
}

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

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-logo .logo-icon {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
}

.footer-logo .logo-text {
    color: white;
    background: none;
    -webkit-text-fill-color: white;
}

.footer-text {
    text-align: right;
    font-size: 0.875rem;
    color: #94a3b8;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(2rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .tab-buttons {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.25rem;
    }
    
    .tab-button {
        padding: 0.5rem;
        font-size: 0.875rem;
    }
    
    .funding-details {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-text {
        text-align: center;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus styles for accessibility */
.btn:focus,
.tab-button:focus,
.nav-link:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* Loading animation for icons */
.lucide {
    animation: fadeIn 0.3s ease-in-out;
}