body {
    font-family: 'Open Sans', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #FCFCFC;
    color: #34495E;
    line-height: 1.6;
}

header {
    background-color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 2rem;
}

.nav-menu li a {
    text-decoration: none;
    color: #5DADE2;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu li a:hover, .nav-menu li a.active {
    color: #3498DB;
    text-decoration: underline;
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #34495E;
}

.hero {
    max-width: 1200px;
    margin: 2rem auto;
    text-align: center;
    padding: 2rem;
    background: linear-gradient(to bottom, #FFFFFF, #F8F9FA);
    border-radius: 8px;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

h1 {
    font-size: 3.5rem;
    color: #34495E;
    font-weight: 500;
    letter-spacing: 0.03em;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.2rem;
    color: #34495E;
    font-weight: 500;
    letter-spacing: 0.03em;
    margin-bottom: 1.2rem;
}

h3 {
    font-size: 1.7rem;
    color: #34495E;
    font-weight: 500;
    margin-bottom: 1rem;
}

p {
    font-size: 1.5rem;
    color: #34495E;
    margin-bottom: 1.2rem;
}

ul {
    font-size: 1.5rem;
    color: #34495E;
    margin-bottom: 1.2rem;
    padding-left: 2rem;
}

.content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background-color: #FFFFFF;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s;
}

.product-card:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.product-card img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 1.2rem;
}

.product-card h4 {
    font-size: 1.6rem;
    color: #34495E;
    margin-bottom: 0.8rem;
}

.button-primary {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: #5DADE2;
    color: #FFFFFF;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    min-height: 48px;
    line-height: 1.5;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: background-color 0.3s;
}

.button-primary:hover {
    background-color: #3498DB;
}

.button-accent {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: #58D68D;
    color: #FFFFFF;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    min-height: 48px;
    line-height: 1.5;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: background-color 0.3s;
}

.button-accent:hover {
    background-color: #45B377;
}

a {
    color: #5DADE2;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.disclaimer {
    padding: 1.2rem;
    border-radius: 8px;
    margin-bottom: 1.2rem;
}

.success {
    background-color: #E8F8F0;
    color: #58D68D;
}

.error {
    background-color: #FFEBEE;
    color: #C62828;
}

.warning {
    background-color: #FFF8E1;
    color: #FF6D00;
}

.product-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 1.2rem;
}

.contact-section {
    max-width: 600px;
    margin: 2rem auto;
}

.contact-intro {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    font-size: 1.3rem;
    color: #34495E;
    margin-bottom: 0.8rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.2rem;
    border: 1px solid #AEB6BF;
    border-radius: 8px;
    font-size: 1.3rem;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #5DADE2;
    outline: none;
}

.form-group textarea {
    min-height: 160px;
    resize: vertical;
}

.popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.popup-content {
    background-color: #FFFFFF;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    position: relative;
    max-width: 400px;
    width: 90%;
}

.close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.5rem;
    cursor: pointer;
    color: #34495E;
}

footer {
    background-color: #FFFFFF;
    padding: 2rem;
    text-align: center;
    border-top: 1px solid #AEB6BF;
}

.footer-links a {
    margin: 0 0.8rem;
    color: #5DADE2;
}

.footer-links a:hover {
    text-decoration: underline;
}

.contact-info {
    margin-top: 1.2rem;
    font-size: 1.3rem;
}

.contact-info p {
    margin: 0.6rem 0;
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background-color: #FFFFFF;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .hero {
        padding: 1.5rem;
    }

    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2rem;
    }

    .product-grid {
        grid-template-columns: 1fr;
    }

    .form-group input,
    .form-group textarea {
        font-size: 1.2rem;
    }
}