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

:root {
    --primary-color: #2a2a2a;
    --secondary-color: #6b6b6b;
    --accent-color: #d4d4d4;
    --text-dark: #1a1a1a;
    --text-light: #5a5a5a;
    --bg-light: #fafafa;
    --bg-white: #ffffff;
    --border-color: #e5e5e5;
    --border-radius: 4px;
    --spacing-unit: 2rem;
    --transition: all 0.25s ease;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem var(--spacing-unit);
    overflow: hidden;
    min-width: 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-dark);
    text-decoration: none;
    letter-spacing: 1px;
    flex-shrink: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 300;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.burger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    flex-shrink: 0;
    margin-left: 1rem;
}

.burger span {
    width: 22px;
    height: 1px;
    background-color: var(--text-dark);
    transition: var(--transition);
}

.hero {
    padding: 8rem var(--spacing-unit);
    text-align: center;
    background-color: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    font-weight: 300;
    line-height: 1.8;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--text-dark);
    color: var(--bg-white);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    border: 1px solid var(--text-dark);
}

.btn:hover {
    background-color: transparent;
    color: var(--text-dark);
}

.section-title {
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--text-dark);
    letter-spacing: -0.3px;
}

section {
    padding: 5rem var(--spacing-unit);
}

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

.card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--text-dark);
}

.card img {
    width: 100%;
    height: auto;
    display: block;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.card h3 {
    font-size: 1.3rem;
    font-weight: 300;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.card p {
    color: var(--text-light);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.price {
    font-size: 1.2rem;
    color: var(--text-dark);
    font-weight: 400;
    margin-top: 1rem;
}

.feature-item {
    text-align: center;
    padding: 2rem 1rem;
}

.feature-item h3 {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-item p {
    color: var(--text-light);
    font-weight: 300;
    line-height: 1.7;
}

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

.about-content p {
    color: var(--text-light);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.features {
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 2rem;
}

form label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-size: 0.9rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

form input,
form textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-white);
    color: var(--text-dark);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

form input:focus,
form textarea:focus {
    outline: none;
    border-color: var(--text-dark);
}

form textarea {
    min-height: 150px;
    resize: vertical;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
}

.checkbox-group label {
    font-size: 0.85rem;
    text-transform: none;
    font-weight: 300;
    line-height: 1.5;
}

footer {
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    padding: 4rem var(--spacing-unit) 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section a {
    display: block;
    color: var(--text-light);
    text-decoration: none;
    margin-bottom: 0.75rem;
    font-weight: 300;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--text-dark);
}

.footer-section p {
    color: var(--text-light);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 0.75rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 300;
}

.policy-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem var(--spacing-unit);
}

.policy-content h1 {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 2rem;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.policy-content h2 {
    font-size: 1.5rem;
    font-weight: 300;
    margin-top: 3rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.policy-content p {
    color: var(--text-light);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.policy-content ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.policy-content li {
    color: var(--text-light);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        padding: 2rem 0;
        border-bottom: 1px solid var(--border-color);
        gap: 0;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        padding: 1rem 0;
    }

    .burger {
        display: flex;
    }

    .hero {
        padding: 4rem var(--spacing-unit);
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    section {
        padding: 3rem var(--spacing-unit);
    }

    .section-title {
        font-size: 1.5rem;
    }

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

    nav {
        padding: 1rem var(--spacing-unit);
    }

    .logo {
        font-size: 1.2rem;
        max-width: calc(100vw - 80px);
    }

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

    .policy-content h1 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-unit: 1.25rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.3rem;
    }

    .card {
        padding: 1.5rem;
    }
}