@font-face {
    font-family: 'Fira Sans';
    src: url('../fonts/FiraSans-Regular.woff2') format('woff2'),
        url('../fonts/FiraSans-Regular.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Fira Sans';
    src: url('../fonts/FiraSans-Bold.woff2') format('woff2'),
        url('../fonts/FiraSans-Bold.woff') format('woff');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Fira Sans';
    src: url('../fonts/FiraSans-Black.woff2') format('woff2'),
        url('../fonts/FiraSans-Black.woff') format('woff');
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Fira Sans';
    src: url('../fonts/FiraSans-Light.woff2') format('woff2'),
        url('../fonts/FiraSans-Light.woff') format('woff');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Fira Sans';
    src: url('../fonts/FiraSans-Medium.woff2') format('woff2'),
        url('../fonts/FiraSans-Medium.woff') format('woff');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}


:root {
    --dark-blue: rgb(1, 40, 95);
    --blue: rgb(1, 68, 122);
    --light-gray: rgb(235, 236, 236);
    --black: rgb(0, 0, 0);
    --white: rgb(255, 255, 255);
}

* {
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    font-weight: 500;
}

body {
    font-family: 'Fira Sans', Arial, sans-serif;
    line-height: 1.6;
    color: var(--black);
}


a {
    color: rgb(1, 40, 95);
    /* Ваш цвет */
    text-decoration: none;
}

a:hover {
    color: rgb(1, 68, 122);
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
    /* height:3em */
}

.section-title {
    color: var(--dark-blue);
    font-size: 2rem;
    line-height: 1.1;
    margin-bottom: 3%;
    text-align: left;
    font-weight: normal;
}

.section-title.section-title--top {
    margin-bottom: -1%;
}

.section-title2 {
    color: var(--dark-blue);
    font-size: 8rem;
    line-height: 1;
    text-align: left;
    font-weight: 800;
    /* margin-bottom: 20px; */
}

.section-title2+.section-title3 {
    margin-top: -1%;
}

/* .section-title2+.section-title {
    margin-top: -1%;
} */

.section-title3 {
    font-size: 1.5rem;
    margin-bottom: 40px;
    color: black;
    font-weight: normal;
    line-height: 1.4;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.6);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    border-bottom: 1px solid rgba(1, 68, 122, 0.1);
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.header.shrink {
    padding: 2px 0;
    background: rgba(255, 255, 255, 0.7);
    -webkit-box-shadow: 0 2px 30px rgba(0, 0, 0, 0.15);
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.15);
}

.header-content {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.logo {
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.logo img {
    height: 70px;
    width: auto;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.header.shrink .logo img {
    height: 50px;
}

.nav {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 15px;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    max-width: 60%;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: var(--dark-blue);
    /* font-weight: 500; */
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    position: relative;
    font-size: 0.9rem;
    white-space: nowrap;
    padding: 5px 8px;
}

.header.shrink .nav a {
    font-size: 0.85rem;
}

.nav a:hover {
    color: var(--blue);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue);
    -webkit-transition: width 0.3s ease;
    -o-transition: width 0.3s ease;
    transition: width 0.3s ease;
}

.nav a:hover::after {
    width: 100%;
}

/* Dropdown menu styles */
.nav-dropdown {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.dropdown-toggle {
    cursor: pointer;
    text-decoration: none;
    color: var(--dark-blue);
    font-weight: 500;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    position: relative;
    font-size: 0.9rem;
    white-space: nowrap;
    padding: 5px 8px;
}

.dropdown-toggle:hover {
    color: var(--blue);
}

.dropdown-toggle::after {
    content: ' ▼';
    font-size: 0.7rem;
    margin-left: 5px;
}

.dropdown-toggle::before {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue);
    -webkit-transition: width 0.3s ease;
    -o-transition: width 0.3s ease;
    transition: width 0.3s ease;
}

.dropdown-toggle:hover::before {
    width: 100%;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(1, 68, 122, 0.2);
    border-radius: 8px;
    -webkit-box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    -webkit-transform: translateY(-10px);
    -ms-transform: translateY(-10px);
    transform: translateY(-10px);
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    z-index: 1000;
    padding: 10px 0;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    -webkit-transform: translateY(0);
    -ms-transform: translateY(0);
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 8px 20px;
    color: var(--dark-blue);
    text-decoration: none;
    font-size: 0.85rem;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(1, 68, 122, 0.1);
}

.dropdown-menu a:last-child {
    border-bottom: none;
}

.dropdown-menu a:hover {
    background: rgba(1, 68, 122, 0.1);
    color: var(--blue);
}

.dropdown-menu a::after {
    display: none;
}

.hero,
.section_1,
.section_2,
.section_3,
.section_4,
.section_5,
.section_6,
.section_7,
.section_8,
.section_9,
.section_10,
.section_11,
.section_12,
.footer {
    position: relative;
    min-height: 100vh;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    overflow: hidden;
    padding: 100px 0;
}

.hero {
    padding-top: 140px;
}

.header.shrink~.hero {
    padding-top: 100px;
}

.background-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
}

.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: -o-linear-gradient(315deg, rgba(1, 40, 95, 0.9) 0%, rgba(1, 68, 122, 0.8) 100%);
    background: linear-gradient(135deg, rgba(1, 40, 95, 0.9) 0%, rgba(1, 68, 122, 0.8) 100%);
    z-index: -1;
}

.hero .background-overlay {
    background: rgba(1, 40, 95, 1);
}

.section_1 .background-overlay {
    background: -o-linear-gradient(325deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.3) 80%);
    background: linear-gradient(125deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.3) 80%);
}

.section_2 .background-overlay {
    background: -o-linear-gradient(325deg, rgba(235, 236, 236, 1) 50%, rgba(235, 236, 236, 0.3) 90%);
    background: linear-gradient(125deg, rgba(235, 236, 236, 1) 50%, rgba(235, 236, 236, 0.3) 90%);
}

.section_3 .background-overlay {
    background: -o-linear-gradient(325deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.3) 80%);
    background: linear-gradient(125deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.3) 80%);
}

.section_4 .background-overlay {
    background: -webkit-gradient(linear, left top, right top, color-stop(30%, rgba(235, 236, 236, 1)), color-stop(90%, rgba(235, 236, 236, 0.5)));
    background: -o-linear-gradient(left, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.5) 90%);
    background: linear-gradient(90deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.5) 90%);
}

.section_5 .background-overlay {
    background: -o-linear-gradient(325deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.6) 80%);
    background: linear-gradient(125deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.6) 80%);
}

.section_6 .background-overlay {
    background: -o-linear-gradient(325deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.6) 80%);
    background: linear-gradient(125deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.6) 80%);
}

.section_7 .background-overlay {
    background: -o-linear-gradient(325deg, rgba(235, 236, 236, 1) 40%, rgba(235, 236, 236, 0.6) 90%);
    background: linear-gradient(125deg, rgba(235, 236, 236, 1) 40%, rgba(235, 236, 236, 0.6) 90%);
}

.section_8 .background-overlay {
    background: -webkit-gradient(linear, left top, left bottom, color-stop(30%, rgba(235, 236, 236, 1)), color-stop(80%, rgba(235, 236, 236, 0.6)));
    background: -o-linear-gradient(top, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.6) 80%);
    background: linear-gradient(180deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.6) 80%);
}

.section_9 .background-overlay {
    background: -o-linear-gradient(325deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.3) 80%);
    background: linear-gradient(125deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.3) 80%);
}

.section_10 .background-overlay {
    background: -o-linear-gradient(325deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.3) 80%);
    background: linear-gradient(125deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.3) 80%);
}

.section_11 .background-overlay {
    background: var(--white) !important;
}

.section_12 .background-overlay {
    background: -o-linear-gradient(325deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.6) 90%);
    background: linear-gradient(125deg, rgba(235, 236, 236, 1) 30%, rgba(235, 236, 236, 0.6) 90%);
}

.footer .background-overlay {
    background: rgba(235, 236, 236, 0.95);
}

.hero .container {
    width: 100%;
}

.hero-content {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    gap: 40px;
}

.hero h1 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    font-weight: 500;
    line-height: 1.3;
    color: var(--white);
    max-width: 90%;
}

.years-section {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: end;
    -ms-flex-align: end;
    align-items: flex-end;
    gap: 30px;
    margin-bottom: 100px;
    color: var(--white);
}

.years-number {
    font-size: 20rem;
    font-weight: 800;
    line-height: 0.8;
    color: var(--white);
}

.years-text {
    font-size: 2rem;
    line-height: 1.1;
    margin-bottom: 20px;
    font-weight: 500;
}

.years-text div {
    margin-bottom: 5px;
}

.section-columns {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 50px;
    margin: 30px 0;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
}

.section-column {
    background: transparent;
    min-width: 250px;
}

.section-column.auto-width {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    min-width: 300px;
}

.section-column.fixed-width {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 var(--column-width, 300px);
    flex: 0 0 var(--column-width, 300px);
}

.column-number {
    font-size: 3.5rem;
    font-weight: 400;
    color: var(--dark-blue);
    margin-top: 10px;
    line-height: 1;
}

.column-header {
    font-size: 2rem;
    font-weight: 400;
    color: var(--dark-blue);
    margin: 20px 0 10px 0;
    line-height: 1.2;
}

.column-header.white-on-blue {
    background-color: var(--blue);
    color: var(--white);
    padding: 8px 15px;
    margin: 15px 0;
    border-radius: 3px;
    font-weight: 500;
    font-size: 0.9rem;
    display: inline-block;
}

.column-text {
    font-size: 1.2rem;
    line-height: 1.6;
    color: var(--black);
    font-weight: 500;
}

.column-text-horizontal {
    font-size: 1.2rem;
    line-height: 1.6;
    color: var(--black);
    font-weight: 500;
    margin-bottom: 30px;
}

/* ВОЗВРАЩАЕМ ОРИГИНАЛЬНЫЕ СТИЛИ ДЛЯ ИЗОБРАЖЕНИЙ */
.section-images-grid {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    gap: 20px;
    margin-top: 60px;
    margin-bottom: 40px;
}

.section-image-item {
    height: 250px;
    overflow: hidden;
    border-radius: 8px;
    -webkit-box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    -webkit-transition: all 0.4s ease;
    -o-transition: all 0.4s ease;
    transition: all 0.4s ease;
    position: relative;
    -ms-flex-negative: 0;
    flex-shrink: 0;
}

.section-image-item:hover {
    -webkit-transform: scale(1.05) translateY(-10px);
    -ms-transform: scale(1.05) translateY(-10px);
    transform: scale(1.05) translateY(-10px);
    -webkit-box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
    z-index: 10;
}

.section-image-item img {
    height: 100%;
    width: auto;
    -o-object-fit: cover;
    object-fit: cover;
    -webkit-transition: -webkit-transform 0.4s ease;
    transition: -webkit-transform 0.4s ease;
    -o-transition: transform 0.4s ease;
    transition: transform 0.4s ease;
    transition: transform 0.4s ease, -webkit-transform 0.4s ease;
}

/* Ensure images keep rounded corners from their parent at all sizes */
.section-image-item img {
    border-radius: inherit;
    display: block;
}

.section-image-item:hover img {
    -webkit-transform: scale(1.1);
    -ms-transform: scale(1.1);
    transform: scale(1.1);
}

.section-images-grid.horizontal {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    gap: 20px;
    margin-top: 60px;
    margin-bottom: 40px;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
}

.section-images-grid.horizontal .section-image-item {
    width: 10%;
    height: auto;
    -o-object-fit: contain;
    object-fit: contain;
    max-width: 10%;
    height: auto;
}

.section-images-grid.horizontal .section-image-item:hover {
    -webkit-transform: scale(1.05) translateY(-10px);
    -ms-transform: scale(1.05) translateY(-10px);
    transform: scale(1.05) translateY(-10px);
    -webkit-box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
    z-index: 10;
}

.section-images-grid.horizontal .section-image-item img {
    height: 100%;
    width: auto;
    -o-object-fit: cover;
    object-fit: cover;
    -webkit-transition: -webkit-transform 0.4s ease;
    transition: -webkit-transform 0.4s ease;
    -o-transition: transform 0.4s ease;
    transition: transform 0.4s ease;
    transition: transform 0.4s ease, -webkit-transform 0.4s ease;
}

.section-images-grid.vertical {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: stretch;
    -ms-flex-align: stretch;
    align-items: stretch;
    gap: 30px;
    margin-top: 30px;
    margin-bottom: 40px;
    width: 100%;
}

.section-images-grid.vertical .section-image-item {
    width: 100%;
    height: 200px;
    overflow: hidden;
    border-radius: 8px;
    -webkit-box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    -webkit-transition: all 0.4s ease;
    -o-transition: all 0.4s ease;
    transition: all 0.4s ease;
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.section-images-grid.vertical .section-image-item:hover {
    -webkit-transform: scale(1.02);
    -ms-transform: scale(1.02);
    transform: scale(1.02);
    -webkit-box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.section-images-grid.vertical .section-image-item img {
    height: 100%;
    -o-object-fit: cover;
    object-fit: cover;
    -webkit-transition: -webkit-transform 0.4s ease;
    transition: -webkit-transform 0.4s ease;
    -o-transition: transform 0.4s ease;
    transition: transform 0.4s ease;
    transition: transform 0.4s ease, -webkit-transform 0.4s ease;
    display: block;
}

.section-images-grid.vertical .section-image-item.limited-height {
    max-height: 500px;
}

.section-images-grid.vertical .section-image-item.limited-height img {
    max-height: 500px;
    -o-object-fit: contain;
    object-fit: contain;
}

.section-images-grid.partners {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 20px;
    margin-top: 60px;
    margin-bottom: 40px;
}

.section-images-grid.partners .section-image-item {
    width: 25%;
    height: 120px;
    -o-object-fit: contain;
    object-fit: contain;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    background: transparent;
    border-radius: 8px;
    padding: 15px;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    border: none;
    -webkit-box-shadow: none;
    box-shadow: none;
    -webkit-transition: none;
    -o-transition: none;
    transition: none;
}

.section-images-grid.partners .section-image-item img {
    -o-object-fit: contain;
    object-fit: contain;
    max-width: 100%;
    max-height: 100%;
    -webkit-transition: none;
    -o-transition: none;
    transition: none;
}

.section-images-grid.partners .section-image-item:hover {
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
    -webkit-box-shadow: none;
    box-shadow: none;
    border: none;
    background: transparent;
}

.section-images-grid.partners .section-image-item:hover img {
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
}

.footer {
    color: var(--black);
    min-height: auto;
    padding: 60px 0 30px 0;
}

.footer-content {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 80px 1fr;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-bottom: 40px;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: start;
}

.footer-logo img {
    width: 270px;
    height: 116px;
    margin-bottom: 20px;
}

.footer-contacts h4 {
    color: var(--blue);
    margin-bottom: 25px;
    font-size: 1.5rem;
    font-weight: 500;
}

.footer-contacts p {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding-top: 25px;
    text-align: center;
    color: var(--black);
    opacity: 0.7;
    font-weight: 300;
    font-size: 1.1rem;
}

.image-placeholder {
    background: var(--light-gray);
    color: var(--black);
    padding: 40px 20px;
    text-align: center;
    font-size: 1.1rem;
    min-height: 200px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    font-weight: 300;
}

.section-column.width-200 {
    --column-width: 200px;
}

.section-column.width-250 {
    --column-width: 250px;
}

.section-column.width-300 {
    --column-width: 300px;
}

.section-column.width-350 {
    --column-width: 350px;
}

.section-column.width-400 {
    --column-width: 400px;
}

.section-column.width-500 {
    --column-width: 500px;
}

.collapsible-section {
    margin-bottom: 20px;
    border: 1px solid rgba(1, 68, 122, 0.2);
    border-radius: 8px;
    overflow: hidden;
}


.collapsible-header {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 20px 25px;
    margin: 0 !important;
    cursor: pointer;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    position: relative;
    font-weight: 500;
    font-size: 1.4rem;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.collapsible-header:hover {
    background-color: var(--blue);
}

.collapsible-header::after {
    content: '▼';
    position: absolute;
    right: 25px;
    top: 50%;
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    font-size: 1rem;
    font-weight: 300;
    -webkit-transition: -webkit-transform 0.3s ease;
    transition: -webkit-transform 0.3s ease;
    -o-transition: transform 0.3s ease;
    transition: transform 0.3s ease;
    transition: transform 0.3s ease, -webkit-transform 0.3s ease;
}

.collapsible-header.active::after {
    content: '▽';
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
}

.collapsible-content {
    max-height: 0;
    overflow: hidden;
    -webkit-transition: max-height 0.3s ease-out;
    -o-transition: max-height 0.3s ease-out;
    transition: max-height 0.3s ease-out;
    padding: 0 25px;
    background-color: rgba(255, 255, 255, 0.7);
}

.collapsible-content--section_10 {
    background-color: transparent;
}

.collapsible-content.active {
    max-height: 1000px;
    padding: 20px 25px;
}

.collapsible-content li:last-child {
    margin-bottom: 15px;
}

.collapsible-content li {
    margin-bottom: 10px;
    padding-left: 15px;
    position: relative;
    font-size: 1.1rem;
}

.collapsible-content {
    list-style: none;
}


.collapsible-content li:before {
    content: '•';
    color: var(--blue);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.column-text {
    list-style: none;
}


.column-text--section_5 {
    padding-left: 15px;
}

.column-text--section_5 li {
    position: relative;
}

.column-text--section_5 li::marker {
    color: var(--blue);
}

/* .column-text--section_5 li:before {
    content: '•';
    color: var(--blue);
    font-weight: bold;
    position: absolute;
    right: 150;
} */


.section_10 {
    background: var(--dark-blue);
    color: var(--white);
    padding: 0;
    min-height: 20vh;
}

.section_10 .section-title {
    color: var(--white);
}

.section_10 .section-title2 {
    color: var(--white);
}

.section_10 .background-overlay {
    background: var(--dark-blue);
}

/* Section 10 mobile-only collapsible visibility rules */
@media (max-width: 480px) {
    #geography_header {
        display: none;
    }
    #section10-collapsible-header:hover {
        background-color: transparent;
    }
    #section10-collapsible-header:active {
            border-radius: 20px;
    }


    /* Start collapsed by default (content gets JS-managed) */
    #section10-collapsible-content {
        max-height: 0;
        /* padding: 0 20px; */
        overflow: hidden;
        /* background-color: rgba(255, 255, 255, 0.3); */
    }

    /* Make titles look clickable as the header */
    .section_10 .section-title2,
    .section_10 .section-title {
        cursor: pointer;
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }
}

@media (min-width: 481px) {

    /* Hide header and keep content expanded on larger screens */
    #section10-collapsible-header {
        display: none;
    }

    #section10-collapsible-content {
        max-height: none;
        padding: 0;
        overflow: visible;
    }
}

.map-container {
    background: transparent;
    border-radius: 10px;
    padding: 0;
    -webkit-box-shadow: none;
    box-shadow: none;
    border: none;
}

.svg-map-wrapper {
    position: relative;
    width: 100%;
    height: auto;
    max-height: 70vh;
    overflow: hidden;
}

.svg-map {
    width: 100%;
    height: auto;
    max-height: 70vh;
    -o-object-fit: contain;
    object-fit: contain;
}

#russia-map {
    width: 100%;
    height: auto;
}

#russia-map path[id^="r"] {
    cursor: pointer;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    opacity: 0.8;
    fill: rgb(1, 68, 122);
}

#russia-map path[id^="r"]:hover {
    opacity: 1;
    fill: #ff6b00;
    stroke: #ff6b00;
    stroke-width: 2px;
    stroke-opacity: 0.8;
    -webkit-filter:
        drop-shadow(0 0 2px rgba(255, 107, 0, 0.8)) drop-shadow(0 0 4px rgba(255, 107, 0, 0.6)) drop-shadow(0 0 6px rgba(255, 107, 0, 0.4));
    filter:
        drop-shadow(0 0 2px rgba(255, 107, 0, 0.8)) drop-shadow(0 0 4px rgba(255, 107, 0, 0.6)) drop-shadow(0 0 6px rgba(255, 107, 0, 0.4));
}

.map-tooltip {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    color: var(--dark-blue);
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    pointer-events: none;
    opacity: 0;
    -webkit-transition: opacity 0.3s ease;
    -o-transition: opacity 0.3s ease;
    transition: opacity 0.3s ease;
    z-index: 1000;
    max-width: 300px;
    -webkit-box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(1, 40, 95, 0.2);
}

.map-tooltip::after {
    content: '';
    position: absolute;
    top: -5px;
    left: 50%;
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 5px solid rgba(255, 255, 255, 0.95);
}

.map-tooltip.visible {
    opacity: 1;
}

#russia-map text {
    pointer-events: none !important;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

#russia-map path[id^="r"] {
    pointer-events: auto !important;
}




/* Исправления для секции 3 - мониторинг коррозии */
/* .section_3 .container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
} */

.section_3 .collapsible-section {
    width: 100%;
    overflow: hidden;
}

.section_10 .collapsible-section {
    border: 0;
}

/* Add margin-top to the first collapsible section in section_3 */
.collapsible-section.first-collapsible {
    margin-top: 2% !important;
}


/* .section_3 .collapsible-content {
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.section_3 .collapsible-content li {
    font-size: 1.1rem;
    line-height: 1.4;
    margin-bottom: 8px;
} */



/* Full Page Scroll - ИСПРАВЛЕННЫЕ СТИЛИ */
.fullpage-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(1, 40, 95, 0.2);
    z-index: 1001;
}

.progress-fill {
    height: 100%;
    background: -webkit-gradient(linear, left top, right top, from(var(--dark-blue)), to(var(--blue)));
    background: -o-linear-gradient(left, var(--dark-blue), var(--blue));
    background: linear-gradient(90deg, var(--dark-blue), var(--blue));
    width: 0%;
    -webkit-transition: width 0.3s ease;
    -o-transition: width 0.3s ease;
    transition: width 0.3s ease;
}

/* Scroll snap functionality */
html {
    -ms-scroll-snap-type: y proximity;
    scroll-snap-type: y proximity;
    scroll-behavior: smooth;
}

/* Make sections snap to top when scrolled */
.hero,
.section_1,
.section_2,
.section_3,
.section_4,
.section_5,
.section_6,
.section_7,
.section_8,
.section_9,
.section_11,
.section_12,
.footer {
    scroll-snap-align: start;
}

.section_10 {
    scroll-snap-align: none;
}


/* ===========================================
   MOBILE REGIONS LIST
   =========================================== */

/* Mobile regions list - hidden by default, shown only on small mobile */
.mobile-regions-list {
    display: none;
}

.mobile-regions-list h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 500;
}

.mobile-regions-grid {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr;
    grid-template-columns: 1fr;
    gap: 5px;
    max-width: 100%;
}

.mobile-region-item {
    background: rgba(1,40,95, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    /* padding: 15px; */
    color: var(--white);
    font-size: 1rem;
    line-height: 1.4;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 15px;
}

.mobile-region-item:hover {
    background: rgba(255, 255, 255, 0.2);
    -webkit-transform: translateY(-2px);
    -ms-transform: translateY(-2px);
    transform: translateY(-2px);
}

.mobile-region-number {
    background: var(--white);
    color: var(--dark-blue);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    font-weight: normal;
    font-size: 0.9rem;
    -ms-flex-negative: 0;
    flex-shrink: 0;
}

.mobile-region-name {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    font-weight: 400;
}

/* ===========================================
   MOBILE IMAGE SLIDER
   =========================================== */

/* Mobile slider - hidden by default, shown only on mobile */
.mobile-image-slider {
    display: none;
    margin-top: 40px;
    margin-bottom: 40px;
}

.slider-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 8px;
    -webkit-box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.slider-track {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-transition: -webkit-transform 0.3s ease;
    transition: -webkit-transform 0.3s ease;
    -o-transition: transform 0.3s ease;
    transition: transform 0.3s ease;
    transition: transform 0.3s ease, -webkit-transform 0.3s ease;
    width: 100%;
}

.slider-slide {
    min-width: 100%;
    height: 250px;
    overflow: hidden;
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
}

.slider-slide img {
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
    object-fit: cover;
    display: block;
}

.slider-slide .image-placeholder {
    background: var(--light-gray);
    color: var(--black);
    padding: 40px 20px;
    text-align: center;
    font-size: 1.1rem;
    min-height: 200px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    font-weight: 300;
    width: 100%;
    height: 100%;
}

.slider-controls {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
}

.slider-btn {
    background: var(--dark-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
    cursor: pointer;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.slider-btn:hover {
    background: var(--blue);
    -webkit-transform: scale(1.1);
    -ms-transform: scale(1.1);
    transform: scale(1.1);
}

.slider-btn:active {
    -webkit-transform: scale(0.95);
    -ms-transform: scale(0.95);
    transform: scale(0.95);
}

.slider-btn:disabled {
    background: rgba(1, 40, 95, 0.3);
    cursor: not-allowed;
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
}

.slider-dots {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 8px;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(1, 40, 95, 0.3);
    cursor: pointer;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    border: none;
}

.slider-dot.active {
    background: var(--dark-blue);
    -webkit-transform: scale(1.2);
    -ms-transform: scale(1.2);
    transform: scale(1.2);
}

.slider-dot:hover {
    background: var(--blue);
    -webkit-transform: scale(1.1);
    -ms-transform: scale(1.1);
    transform: scale(1.1);
}

/* ===========================================
   RESPONSIVE DESIGN
   =========================================== */

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -ms-flex-pack: distribute;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 2100;
    /* keep above sliding nav */
    position: relative;

}

.mobile-menu-toggle span {
    /* width: 25px; */
    height: 3px;
    background: var(--dark-blue);
    border-radius: 3px;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    -webkit-transform-origin: 1px;
    -ms-transform-origin: 1px;
    transform-origin: 1px;
    width: 30px !important;
    height: 3px !important;
}

.mobile-menu-toggle.active span:first-child {
    -webkit-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    transform: rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:last-child {
    -webkit-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    transform: rotate(-45deg);
}

/* Body lock when menu is open */
body.menu-open {
    overflow: hidden;
}


/* Mobile Navigation */
@media (max-width: 1024px) {
    .nav {
        position: fixed;
        top: 0;
        right: 0;
        /* anchor to right edge */
        width: 80%;
        max-width: 400px;
        /* height: 100vh; */
        background: rgba(255, 255, 255, 0.98);
        -webkit-backdrop-filter: blur(20px);
        backdrop-filter: blur(20px);
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        -webkit-box-pack: start;
        -ms-flex-pack: start;
        justify-content: flex-start;
        -webkit-box-align: start;
        -ms-flex-align: start;
        align-items: flex-start;
        /* padding: 15% 3% 15% 5%; */
        padding: 55px 10px 50px 5px;
        -webkit-transition: -webkit-transform 0.3s ease;
        transition: -webkit-transform 0.3s ease;
        -o-transition: transform 0.3s ease;
        transition: transform 0.3s ease;
        transition: transform 0.3s ease, -webkit-transform 0.3s ease;
        z-index: 2000;
        /* above header */
        /* box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1); */
        -webkit-transform: translateX(100%);
        -ms-transform: translateX(100%);
        transform: translateX(100%);
        /* off-screen by default */
        will-change: transform;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .nav.active {
        -webkit-transform: translateX(0);
        -ms-transform: translateX(0);
        transform: translateX(0);
    }

    .nav a {
        width: 100%;
        /* padding: -15px 0; */
        border-bottom: 1px solid rgba(1, 68, 122, 0.1);
        font-size: 0.9rem;
        margin: 0;
        line-height: 0.7;
    }

    .nav a::after {
        display: none;
    }

    .nav-dropdown {
        width: 100%;
        position: static;
        display: none;
        /* Hide the dropdown container on mobile */
    }

    /* Hide dropdown toggle on mobile */
    .dropdown-toggle {
        display: none;
    }

    /* Hide dropdown menu on mobile */
    .dropdown-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
    }

    /* Show mobile service links only on mobile with same formatting as regular nav links */
    .mobile-service-link {
        display: block;
        width: 100%;
        padding: 15px 0;
        border-bottom: 1px solid rgba(1, 68, 122, 0.1);
        font-size: 1.1rem;
        margin: 0;
        color: var(--dark-blue);
        text-decoration: none;
        font-weight: 100;
        -webkit-transition: all 0.3s ease;
        -o-transition: all 0.3s ease;
        transition: all 0.3s ease;
    }

    .mobile-service-link:hover {
        color: var(--blue);
    }
}

/* Hide mobile service links on desktop */
@media (min-width: 1025px) {
    .mobile-service-link {
        display: none;
    }
}

/* Tablet Styles */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }

    .section-title2 {
        font-size: 4rem;
    }

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

    .section-title.section-title--top {
        margin-bottom: -2%;
        -webkit-margin-after: -1%;
        /* Только для Webkit (Safari) */
    }

    .section-title3 {
        font-size: 1.2rem;
        margin-bottom: 3%;
    }

    .section-title2+.section-title {
        margin-top: -2%;
        -webkit-margin-before: -1%;
        /* Только для Webkit (Safari) */
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .years-number {
        font-size: 12rem;
    }

    .years-text {
        font-size: 1.5rem;
    }

    .section-columns {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 0;
        margin: 0;
    }


    .section-column.auto-width {
        min-width: auto;
    }

    .section-images-grid {
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
        /* gap: 15px; */
    }

    .section-image-item {
        height: 200px;
        -webkit-box-flex: 0;
        -ms-flex: 0 0 auto;
        flex: 0 0 auto;
        /* let item width follow image width */
    }

    .section-images-grid.partners .section-image-item {
        width: calc(25% - 15px);
        height: 100px;
    }

    .footer-content {
        -ms-grid-columns: 1fr;
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .header {
        padding: 15px 0;
    }

    .logo img {
        height: 50px;
        width: auto;
    }

    .section-title2 {
        font-size: 5rem;
        line-height: 1.1;
    }

    .section-title {
        font-size: 1.3rem;
        line-height: 1.2;
    }

    .section-title3 {
        font-size: 1.1rem;
        line-height: 1.3;
    }

    .hero {
        padding-top: 120px;
        min-height: 100vh;
    }

    .hero h1 {
        font-size: 1.4rem;
        line-height: 1.3;
    }

    .years-section {
        /* flex-direction: column; */
        -webkit-box-align: end;
        -ms-flex-align: end;
        align-items: flex-end;
        gap: 20px;
        margin-bottom: 40px;
    }

    .years-number {
        font-size: 15rem;
        line-height: 0.8;
    }

    .years-text {
        font-size: 1.2rem;
        margin-bottom: 0;
    }


    .column-number {
        font-size: 2.5rem;
    }

    .column-header {
        font-size: 1.3rem;
        margin: 20px 0px 0px 0px;
    }



    .column-text {
        font-size: 1rem;
        line-height: 1.5;
    }

    .column-text-horizontal {
        font-size: 1rem;
        line-height: 1.6;
        color: var(--black);
        font-weight: 500;
        margin-bottom: 2%;
    }

    .section-images-grid {
        display: none;
        /* Hide regular grid on mobile */
    }

    .mobile-image-slider {
        display: block;
        /* Show mobile slider on mobile */
    }

    /* Hide static images in section 5 on mobile when slider is present */
    .section_5 .section-images-grid {
        display: none !important;
    }

    /* Section 10 mobile: disable hover/tap effects on mobile regions list */
    .section_10 .mobile-region-item {
        -webkit-transition: none;
        -o-transition: none;
        transition: none;
        -webkit-tap-highlight-color: transparent;
    }

    .section_10 .mobile-region-item:hover,
    .section_10 .mobile-region-item:active,
    .section_10 .mobile-region-item:focus {
        background: transparent;
        -webkit-transform: none;
        -ms-transform: none;
        transform: none;
        -webkit-box-shadow: none;
        box-shadow: none;
        outline: none;
    }

    .slider-container {
        width: 85%;
        margin: 0 auto;
    }

    .slider-slide {
        height: 440px;
    }

    .slider-btn {
        width: 35px;
        height: 35px;
        font-size: 1.3rem;
    }

    .slider-dot {
        width: 10px;
        height: 10px;
    }

    .hero,
    .section_1,
    .section_2,
    .section_3,
    .section_4,
    .section_5,
    .section_6,
    .section_7,
    .section_8,
    .section_9,
    .section_10,
    .section_11,
    .section_12,
    .footer {
        padding: 50px 0;
    }
}

/* Small Mobile Styles - Additional slider adjustments */
@media (max-width: 480px) {
    .slider-slide {
        height: 250px;
    }

    .slider-btn {
        width: 32px;
        height: 32px;
        font-size: 1.2rem;
    }

    .slider-dot {
        width: 8px;
        height: 8px;
    }

    .slider-controls {
        gap: 15px;
        margin-top: 15px;
    }

    .section-images-grid.partners .section-image-item {
        width: calc(50% - 10px);
        height: 80px;
        margin-bottom: 15px;
    }

    .section-images-grid.vertical .section-image-item {
        height: 150px;
    }

    /* Map section mobile improvements */
    .svg-map-wrapper {
        max-height: 50vh;
    }

    .svg-map {
        max-height: 50vh;
    }

    .map-tooltip {
        font-size: 0.9rem;
        padding: 8px 12px;
        max-width: 250px;
    }

    .collapsible-header {
        font-size: 1rem;
        padding: 15px 15px 20px 20px;
        text-align: center;
    }

    .collapsible-content {
        padding: 0 20px;
    }

    .collapsible-content.active {
        padding: 15px 20px;
    }

    .collapsible-content li {
        font-size: 0.9rem;
        margin-bottom: 8px;
        font-weight: 400;

    }

    .footer {
        padding: 40px 0 20px 0;
    }

    .footer-logo img {
        width: 200px;
        height: auto;
    }

    .footer-contacts h4 {
        font-size: 1.3rem;
    }

    .footer-contacts p {
        font-size: 1rem;
    }

    .footer-bottom {
        font-size: 0.9rem;
    }

    .slider-container {
        width: 100%;
    }

    /* Hide SVG map on small mobile devices */
    .svg-map-wrapper {
        display: none;
    }

    /* Show mobile regions list */
    .mobile-regions-list {
        display: block;
        /* margin-top: 30px; */
    }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }

    .section-title2 {
        font-size: 2.5rem;
        margin-bottom: 5px;
    }

    .section-title {
        font-size: 1.1rem;
    }

    .section-title3 {
        font-size: 1rem;
    }

    .hero h1 {
        font-size: 1.2rem;
    }

    .years-number {
        font-size: 10rem;
    }

    .years-text {
        font-size: 1rem;
    }

    .column-number {
        font-size: 2rem;
    }

    .column-header {
        font-size: 1.3rem;
    }

    .column-text {
        font-size: 0.9rem;
    }

    .column-text-horizontal {
        font-size: 0.9rem;
    }

    .section-image-item {
        height: 150px;
    }

    .collapsible-header::after {
        font-size: 0.7rem;
    }

    .section-images-grid.partners {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        gap: 0;
        margin-top: 0;
        margin-bottom: 0;
    }

    .section-images-grid.partners .section-image-item {
        width: calc(50% - 10px);
        height: 80px;
        margin-bottom: 15px;
    }

    .collapsible-header {
        font-size: 1rem;
        padding: 12px 40px 15px 15px;
        text-align: center;
    }

    .collapsible-content {
        padding: 0 15px;
    }

    .collapsible-content.active {
        padding: 12px 15px;
    }

    .footer-logo img {
        width: 150px;
    }

    .footer-contacts h4 {
        font-size: 1.2rem;
    }

    .footer-contacts p {
        font-size: 0.9rem;
    }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: 100vh;
        padding-top: 100px;
    }

    .years-section {
        -webkit-box-orient: horizontal;
        -webkit-box-direction: normal;
        -ms-flex-direction: row;
        flex-direction: row;
        -webkit-box-align: end;
        -ms-flex-align: end;
        align-items: flex-end;
        gap: 20px;
    }

    .years-number {
        font-size: 6rem;
    }

    .years-text {
        font-size: 1rem;
    }

    .section-images-grid {
        -webkit-box-orient: horizontal;
        -webkit-box-direction: normal;
        -ms-flex-direction: row;
        flex-direction: row;
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    }

    .section-image-item {
        -webkit-box-flex: 1;
        -ms-flex: 1 1 calc(50% - 10px);
        flex: 1 1 calc(50% - 10px);
        height: 120px;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2),
(-o-min-device-pixel-ratio: 2/1),
(min-resolution: 192dpi) {
    .logo img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: var(--dark-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(1, 40, 95, 0.3);
    font-size: 0;
    line-height: 0;
}

.back-to-top:hover {
    background: var(--blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(1, 40, 95, 0.4);
}

.back-to-top:active {
    transform: translateY(0);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
}

.back-to-top:hover svg {
    transform: translateY(-2px);
}

/* Mobile adjustments for back to top button */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        left: 20px;
        width: 45px;
        height: 45px;
    }
    
    .back-to-top svg {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 480px) {
    .back-to-top {
        bottom: 15px;
        left: 15px;
        width: 40px;
        height: 40px;
    }
    
    .back-to-top svg {
        width: 18px;
        height: 18px;
    }
}

/* Print Styles */
@media print {

    .header,
    .mobile-menu-toggle,
    .nav,
    .background-image,
    .background-overlay,
    .back-to-top {
        display: none !important;
    }

    .hero,
    .section_1,
    .section_2,
    .section_3,
    .section_4,
    .section_5,
    .section_6,
    .section_7,
    .section_8,
    .section_9,
    .section_10,
    .section_11,
    .section_12,
    .footer {
        min-height: auto;
        padding: 20px 0;
        page-break-inside: avoid;
    }

    .section-title2 {
        font-size: 2rem;
        color: #000 !important;
    }

    .section-title {
        font-size: 1.2rem;
        color: #000 !important;
    }

    .column-text {
        color: #000 !important;
    }
}