* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header */
header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #4CAF50;
    text-decoration: none;
}

.contacts {
    text-align: right;
}

.phone {
    font-size: 18px;
    font-weight: bold;
    color: #333;
}

.work-hours {
    font-size: 12px;
    color: #777;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-right: 20px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #4CAF50;
}

/* Main Content */
.main-banner {
    background-color: #f5f5f5;
    padding: 50px 0;
    text-align: center;
    margin-bottom: 40px;
}

.main-banner h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #2E7D32;
}

.main-banner p {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto 30px;
}

.btn {
    display: inline-block;
    background-color: #4CAF50;
    color: white;
    padding: 12px 30px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s;
    cursor: pointer;
    border: none;
}

.btn:hover {
    background-color: #3e8e41;
}

.products {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.product-card {
    background-color: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 20px;
    text-align: center;
    transition: box-shadow 0.3s;
}

.product-card:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.product-card img {
    max-width: 100%;
    height: auto;
    margin-bottom: 15px;
}

.product-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.product-price {
    font-weight: bold;
    color: #2E7D32;
    font-size: 18px;
    margin: 10px 0;
}

/* Expert Council */
.experts-section {
    background-color: #f9f9f9;
    padding: 40px 0;
    margin: 40px 0;
}

.experts-title {
    text-align: center;
    margin-bottom: 30px;
    color: #2E7D32;
}

.experts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.expert-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    text-align: center;
}

.expert-photo {
    height: 250px;
    overflow: hidden;
}

.expert-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expert-info {
    padding: 20px;
}

.expert-name {
    font-size: 20px;
    margin-bottom: 5px;
    color: #2E7D32;
}

.expert-position {
    color: #666;
    margin-bottom: 15px;
    font-size: 14px;
}

.expert-bio {
    font-size: 14px;
    color: #555;
}

/* Footer */
footer {
    background-color: #f5f5f5;
    padding: 40px 0 20px;
    margin-top: 50px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 30px;
}

.footer-column h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #2E7D32;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    text-decoration: none;
    color: #666;
    transition: color 0.3s;
}

.footer-column ul li a:hover {
    color: #4CAF50;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
    color: #777;
    font-size: 14px;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: #fff;
    margin: 10% auto;
    padding: 30px;
    border-radius: 8px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    animation: modalopen 0.5s;
}

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

.modal-header {
    margin-bottom: 20px;
}

.modal-header h2 {
    color: #2E7D32;
    text-align: center;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.success-message {
    display: none;
    text-align: center;
    padding: 20px;
    color: #2E7D32;
    font-size: 18px;
    font-weight: bold;
}