* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.5;
    color: #333;
    background: #fff;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid #eee;
    z-index: 100;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    height: 26px;
}

nav {
    display: flex;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    font-size: 0.9rem;
}

nav a:hover {
    color: #000;
}

/* Sections */
section {
    padding: 60px 0;
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.5s ease;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

section h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #111;
}

section > .container > p {
    font-size: 1rem;
    color: #666;
    margin-bottom: 2rem;
}

/* Hero */
.hero-section {
    padding: 100px 0 60px;
    text-align: center;
}

.hero-content {
    max-width: 500px;
    margin: 0 auto;
}

.hero-section h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #111;
}

.hero-section p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.4;
}

.signup-form form {
    display: flex;
    gap: 0.5rem;
    max-width: 320px;
    margin: 0 auto;
}

.signup-form input {
    flex: 1;
    padding: 0.7rem 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 0.95rem;
}

.signup-form button {
    padding: 0.7rem 1.2rem;
    background: #111;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.3s ease;
}

.signup-form button:hover {
    background: #000;
}

/* Confirmation message styles */
.confirmation-message {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    margin-top: 1rem;
    animation: slideInUp 0.5s ease-out;
}

.confirmation-content {
    max-width: 300px;
    margin: 0 auto;
}

.check-icon {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: #28a745;
    color: white;
    border-radius: 50%;
    line-height: 40px;
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.confirmation-message h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #111;
}

.confirmation-message p {
    font-size: 0.9rem;
    color: #666;
    margin: 0;
    line-height: 1.4;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Button loading state */
.signup-form button.loading {
    background: #666;
    cursor: not-allowed;
}

.signup-form button.loading::after {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-left: 8px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Product Section with Slider */
.product-section {
    background: #fafafa;
}

.app-showcase {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
}

.screenshots-slider {
    text-align: center;
}

.slider-container {
    position: relative;
    width: 200px;
    height: 400px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.slide.active {
    opacity: 1;
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slider-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.nav-btn {
    background: #f0f0f0;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: #666;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background: #e0e0e0;
    color: #111;
}

.dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ccc;
    cursor: pointer;
    transition: background 0.3s ease;
}

.dot.active {
    background: #111;
}

.app-features h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #111;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.step {
    width: 24px;
    height: 24px;
    background: #111;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    flex-shrink: 0;
}

.feature span:last-child {
    color: #555;
    font-size: 0.95rem;
}

/* Pricing */
.pricing-section {
    background: white;
    text-align: center;
}

.pricing-table {
    max-width: 400px;
    margin: 0 auto 2rem;
    background: #fafafa;
    border-radius: 8px;
    padding: 1.5rem;
}

.pricing-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #eee;
    font-size: 0.95rem;
}

.pricing-row:last-child {
    border-bottom: none;
    font-weight: 600;
}

.pricing-note {
    font-size: 0.85rem;
    color: #777;
    max-width: 400px;
    margin: 0 auto;
}

/* Tech Section */
.tech-section {
    background: #fafafa;
}

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

.tech-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #111;
}

.tech-item p {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.5;
}

/* Team */
.team-section {
    background: white;
}

.founder-profile {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    max-width: 600px;
}

.founder-photo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.founder-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #111;
}

.founder-title {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.founder-info p {
    font-size: 0.9rem;
    color: #555;
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.company-details {
    margin-bottom: 2rem;
}

.company-details h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #111;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.detail {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.label {
    font-size: 0.8rem;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail span:last-child {
    font-size: 0.9rem;
    color: #555;
}

.hiring {
    padding: 1rem;
    background: #f9f9f9;
    border-radius: 4px;
    border-left: 3px solid #111;
}

.hiring p {
    margin: 0;
    font-size: 0.9rem;
    color: #555;
}

.hiring a {
    color: #111;
    text-decoration: none;
}

.hiring a:hover {
    text-decoration: underline;
}

/* FAQ */
.faq-section {
    background: #fafafa;
}

.faq-list {
    max-width: 600px;
    margin: 2rem auto 0;
}

.faq-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid #eee;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #111;
}

.faq-item p {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.5;
    margin: 0;
}

.faq-item a {
    color: #111;
    text-decoration: none;
}

.faq-item a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background: white;
    border-top: 1px solid #eee;
    padding: 40px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 2rem;
}

.footer-logo {
    height: 24px;
    margin-bottom: 0.5rem;
}

.footer-main p {
    color: #666;
    font-size: 0.85rem;
}

.footer-contact {
    text-align: right;
}

.footer-contact p {
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.footer-contact a {
    color: #666;
    text-decoration: none;
}

.footer-contact a:hover {
    color: #111;
}

.social-links {
    margin-top: 0.5rem;
}

.social-links a {
    color: #666;
    text-decoration: none;
    font-size: 0.85rem;
}

.social-links a:hover {
    color: #111;
}

.footer-bottom {
    border-top: 1px solid #f0f0f0;
    padding-top: 1rem;
    text-align: center;
}

.footer-bottom p {
    color: #999;
    font-size: 0.8rem;
    margin: 0;
}

/* Mobile */
@media (max-width: 768px) {
    .app-showcase {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .slider-container {
        width: 160px;
        height: 320px;
    }
    
    .founder-profile {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-contact {
        text-align: left;
    }
    
    .signup-form form {
        flex-direction: column;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    nav {
        display: none; /* Add mobile menu if needed */
    }
}