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

:root {
    --primary-color: #1a1a1a;
    --accent-color: #4a90e2;
    --text-light: #666;
    --bg-light: #f8f8f8;
    --white: #ffffff;
    --shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--primary-color);
    background-color: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

header {
    padding: 2rem 0;
    text-align: center;
}

.logo {
    font-size: 2rem;
    font-weight: 300;
    letter-spacing: -1px;
    color: var(--primary-color);
}

.logo .dot {
    color: var(--accent-color);
    font-weight: 600;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem 0;
}

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

.tagline {
    font-size: 3rem;
    font-weight: 200;
    margin-bottom: 1rem;
    letter-spacing: -1px;
    animation: fadeInUp 0.8s ease-out;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    font-weight: 300;
    animation: fadeInUp 0.8s ease-out 0.2s;
    animation-fill-mode: both;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
    width: 100%;
    max-width: 800px;
}

.feature {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 0.8s ease-out 0.4s;
    animation-fill-mode: both;
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.feature p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.cta {
    text-align: center;
    animation: fadeInUp 0.8s ease-out 0.6s;
    animation-fill-mode: both;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.3);
}

.note {
    margin-top: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
    font-style: italic;
}

footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: var(--white);
    margin: 15% auto;
    padding: 2.5rem;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
    animation: slideIn 0.3s ease;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.2);
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2rem;
    font-weight: 300;
    color: var(--text-light);
    cursor: pointer;
    transition: color 0.3s ease;
}

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

.modal-content h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 400;
}

.modal-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .tagline {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .modal-content {
        margin: 30% auto;
        padding: 2rem;
    }
}