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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #e0e5ec;
    color: #333;
    line-height: 1.6;
}

header {
    background: #e0e5ec;
    padding: 15px 0;
    box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.6), -9px -9px 16px rgba(255, 255, 255, 0.5);
    position: relative;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    display: block;
}

.burger {
    position: relative;
    z-index: 1002;
    background: #e0e5ec;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 5px 5px 10px rgba(163, 177, 198, 0.6), -5px -5px 10px rgba(255, 255, 255, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.burger:hover {
    box-shadow: 3px 3px 6px rgba(163, 177, 198, 0.6), -3px -3px 6px rgba(255, 255, 255, 0.5);
}

.burger span {
    width: 24px;
    height: 2px;
    background: #333;
    display: block;
    transition: 0.3s;
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger.active span:nth-child(2) {
    opacity: 0;
}

.burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: none;
    opacity: 0;
    transition: opacity 0.3s;
}

.nav-backdrop.active {
    display: block;
    opacity: 1;
}

.nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100%;
    background: #e0e5ec;
    box-shadow: -9px 0 16px rgba(163, 177, 198, 0.6);
    z-index: 1001;
    transition: right 0.3s;
    overflow-y: auto;
    padding: 80px 20px 20px;
}

.nav.active {
    right: 0;
}

.nav ul {
    list-style: none;
}

.nav li {
    margin: 10px 0;
}

.nav a {
    color: #333;
    text-decoration: none;
    padding: 12px 15px;
    display: block;
    border-radius: 10px;
    box-shadow: 5px 5px 10px rgba(163, 177, 198, 0.6), -5px -5px 10px rgba(255, 255, 255, 0.5);
    transition: 0.3s;
}

.nav a:hover {
    box-shadow: inset 5px 5px 10px rgba(163, 177, 198, 0.6), inset -5px -5px 10px rgba(255, 255, 255, 0.5);
}

main {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
}

.breadcrumbs {
    margin: 10px 0;
    padding: 20px 30px;
    background: #e0e5ec;
    border-radius: 15px;
    box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.6), -9px -9px 16px rgba(255, 255, 255, 0.5);
    font-size: 14px;
    text-align: center;
}

.breadcrumbs span {
    display: inline;
}

.breadcrumbs a {
    color: #4a90e2;
    text-decoration: none;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

.intro-block {
    margin: 10px 0;
}

.intro-table {
    width: 100%;
    background: #e0e5ec;
    border-radius: 15px;
    box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.6), -9px -9px 16px rgba(255, 255, 255, 0.5);
    padding: 30px;
}

.intro-table h1 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 28px;
}

.intro-table p {
    font-size: 16px;
    color: #555;
}

.offers-table-container {
    margin: 10px 0;
    padding: 20px;
    background: #e0e5ec;
    border-radius: 15px;
    box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.6), -9px -9px 16px rgba(255, 255, 255, 0.5);
    overflow-x: auto;
}

.offers-table {
    width: 100%;
    background: #fff;
    border: 2px solid #ccc;
    border-collapse: collapse;
    table-layout: fixed;
}

.offers-table td {
    width: 33.333%;
    padding: 20px;
    text-align: center;
    vertical-align: middle;
    border: 1px solid #ccc;
}

.offers-table img {
    max-width: 160px;
    height: 50px;
    object-fit: contain;
    margin: 0 auto;
    display: block;
}

.offer-sum {
    font-size: 20px;
    font-weight: bold;
    color: #2c3e50;
    margin: 15px 0;
}

.offer-btn {
    display: inline-block;
    background: #27ae60;
    color: #fff;
    padding: 12px 30px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: bold;
    box-shadow: 5px 5px 10px rgba(163, 177, 198, 0.6), -5px -5px 10px rgba(255, 255, 255, 0.5);
    transition: 0.3s;
}

.offer-btn:hover {
    box-shadow: inset 5px 5px 10px rgba(39, 174, 96, 0.4), inset -5px -5px 10px rgba(39, 174, 96, 0.1);
}

.image-block {
    margin: 10px 0;
    padding: 20px;
    background: #e0e5ec;
    border-radius: 15px;
    box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.6), -9px -9px 16px rgba(255, 255, 255, 0.5);
}

.image-block img {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    display: block;
}

.content-block {
    margin: 10px 0;
    padding: 30px;
    background: #e0e5ec;
    border-radius: 15px;
    box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.6), -9px -9px 16px rgba(255, 255, 255, 0.5);
}

.content-block h2 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 24px;
}

.content-block p {
    margin-bottom: 15px;
    color: #555;
}

.content-block ul,
.content-block ol {
    margin: 15px 0 15px 25px;
    color: #555;
}

.content-block li {
    margin: 8px 0;
}

.content-block a {
    color: #4a90e2;
    text-decoration: underline;
}

.content-block a:hover {
    color: #357abd;
}

.calculator-block {
    margin: 10px 0;
    padding: 30px;
    background: #e0e5ec;
    border-radius: 15px;
    box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.6), -9px -9px 16px rgba(255, 255, 255, 0.5);
}

.calculator-block h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 24px;
}

.calculator {
    background: #e0e5ec;
    padding: 20px;
    border-radius: 10px;
}

.calc-input {
    margin: 15px 0;
}

.calc-input label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 600;
}

.calc-input input {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: #e0e5ec;
    box-shadow: inset 5px 5px 10px rgba(163, 177, 198, 0.6), inset -5px -5px 10px rgba(255, 255, 255, 0.5);
    font-size: 16px;
    color: #333;
}

.calc-btn {
    background: #27ae60;
    color: #fff;
    padding: 12px 30px;
    border: none;
    border-radius: 10px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 5px 5px 10px rgba(163, 177, 198, 0.6), -5px -5px 10px rgba(255, 255, 255, 0.5);
    margin-top: 15px;
    font-size: 16px;
    transition: 0.3s;
}

.calc-btn:hover {
    box-shadow: inset 5px 5px 10px rgba(39, 174, 96, 0.4), inset -5px -5px 10px rgba(39, 174, 96, 0.1);
}

.calc-result {
    margin-top: 20px;
    padding: 20px;
    background: #e0e5ec;
    border-radius: 10px;
    box-shadow: inset 3px 3px 6px rgba(163, 177, 198, 0.6), inset -3px -3px 6px rgba(255, 255, 255, 0.5);
    font-size: 16px;
    color: #2c3e50;
    min-height: 50px;
}

.faq-block {
    margin: 10px 0;
    padding: 30px;
    background: #e0e5ec;
    border-radius: 15px;
    box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.6), -9px -9px 16px rgba(255, 255, 255, 0.5);
}

.faq-block h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 24px;
}

.faq-item {
    margin: 15px 0;
    background: #e0e5ec;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 5px 5px 10px rgba(163, 177, 198, 0.6), -5px -5px 10px rgba(255, 255, 255, 0.5);
}

.faq-question {
    padding: 15px 20px;
    font-weight: 600;
    color: #2c3e50;
    cursor: pointer;
    user-select: none;
    transition: 0.3s;
}

.faq-question:hover {
    background: rgba(163, 177, 198, 0.1);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: #e0e5ec;
    box-shadow: inset 3px 3px 6px rgba(163, 177, 198, 0.4), inset -3px -3px 6px rgba(255, 255, 255, 0.3);
}

.faq-answer div {
    padding: 15px 20px;
    color: #555;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.contact-form-container {
    margin: 10px 0;
    padding: 30px;
    background: #e0e5ec;
    border-radius: 15px;
    box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.6), -9px -9px 16px rgba(255, 255, 255, 0.5);
}

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

.form-group {
    margin: 20px 0;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: #e0e5ec;
    box-shadow: inset 5px 5px 10px rgba(163, 177, 198, 0.6), inset -5px -5px 10px rgba(255, 255, 255, 0.5);
    font-size: 16px;
    color: #333;
    font-family: inherit;
}

.form-submit {
    background: #27ae60;
    color: #fff;
    padding: 12px 40px;
    border: none;
    border-radius: 10px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 5px 5px 10px rgba(163, 177, 198, 0.6), -5px -5px 10px rgba(255, 255, 255, 0.5);
    font-size: 16px;
    transition: 0.3s;
    display: block;
    margin: 20px auto 0;
}

.form-submit:hover {
    box-shadow: inset 5px 5px 10px rgba(39, 174, 96, 0.4), inset -5px -5px 10px rgba(39, 174, 96, 0.1);
}

footer {
    background: #e0e5ec;
    padding: 30px 20px;
    margin-top: 40px;
    text-align: center;
    box-shadow: 0 -9px 16px rgba(163, 177, 198, 0.6);
}

footer p {
    margin: 10px 0;
    color: #555;
}

footer a {
    color: #4a90e2;
    text-decoration: none;
}

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

@media (max-width: 768px) {
    .offers-table {
        table-layout: auto;
    }

    .offers-table tr {
        display: flex;
        flex-direction: column;
    }

    .offers-table td {
        width: 100%;
        display: block;
        padding: 15px;
    }

    .nav {
        width: 80%;
    }

    .intro-table h1 {
        font-size: 22px;
    }

    .content-block h2,
    .faq-block h2,
    .calculator-block h2 {
        font-size: 20px;
    }
}