:root {
    --primary-color: #4DB6AC;
    --primary-dark: #00897b;
    --secondary-color: #2c3e50;
    --text-color: #333;
    --bg-light: #f9f9f9;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    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: var(--text-color);
    background-color: var(--white);
}

/* Layout & Container */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    text-decoration: none;
}

.logo span {
    color: var(--primary-color);
}

.nav-links a {
    margin-left: 20px;
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 500;
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.hero-content p {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(77, 182, 172, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--secondary-color);
    border: 1px solid #ddd;
}

.btn-secondary:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
}

.hero-image {
    max-width: 80%;
    margin: 0 auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--white);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.5rem;
    color: var(--secondary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: inline-block;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--secondary-color);
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background-color: #f0f4f8;
}

.faq-item {
    background: var(--white);
    margin-bottom: 15px;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.faq-question {
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 10px;
    display: block;
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 50px 0 20px;
    text-align: center;
}

.footer-links {
    margin-bottom: 30px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    margin: 0 15px;
    transition: var(--transition);
}

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

.contact-info {
    margin-bottom: 20px;
    color: #aaa;
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
}

.copyright {
    color: #777;
    font-size: 0.9rem;
    border-top: 1px solid #3d5166;
    padding-top: 20px;
    margin-top: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Video Container */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    background: #000;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin: 30px 0;
}

.video-container iframe,
.video-container object,
.video-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.5rem;
    background: linear-gradient(45deg, #2c3e50, #4DB6AC);
}

/* Beta Signup Form */
.beta-signup {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    max-width: 600px;
    margin: 40px auto;
    box-shadow: var(--shadow);
}

.beta-signup h2 {
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.beta-signup p {
    margin-bottom: 25px;
    color: #666;
}

.signup-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.signup-form input[type="email"] {
    flex: 1;
    min-width: 250px;
    padding: 12px 20px;
    border: 1px solid #ddd;
    border-radius: 50px;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.signup-form input[type="email"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(77, 182, 172, 0.2);
}

.signup-form button {
    padding: 12px 30px;
    border: none;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.signup-form button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.success-message {
    display: none;
    background-color: #e8f5e9;
    color: #2e7d32;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    border: 1px solid #c8e6c9;
}