:root {
    --color-cream: #F2F0E4;
    --color-white: #FFFFFF;
    --color-black: #0E0E0E;
    --color-dark-gray: #1C1C1C;
    --color-light-gray: #DCDCDC;
    --color-blue: #11326E;
    --color-green: #97C05C;
    --color-purple: #9D9AF8;
}

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

html, body {
    width: 100%;
    position: relative;
    overflow-x: hidden;
}

body {
    background-color: var(--color-black);
    color: var(--color-cream);
    font-family: 'Roboto', sans-serif;
}

a {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

/* Header Styles */
.fixed-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: all 0.4s ease;
    opacity: 0;
    pointer-events: none;
}

.fixed-header.scrolled {
    opacity: 1;
    pointer-events: all;
    padding: 15px 0;
}

.fixed-header__container {
    max-width: 1860px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.fixed-header.scrolled .fixed-header__container {
    background-color: #252525;
    border-radius: 50px;
    padding: 25px 40px;
}

.fixed-header__logo {
    width: 200px;
    cursor: pointer;
}

.fixed-header__logo img {
    max-width: 170%;
    height: auto;
}

.top-nav {
    display: flex;
    font-family: 'Roboto', sans-serif;
    font-size: 21px;
    text-transform: uppercase;
    color: var(--color-cream);
    letter-spacing: 0.05em;
}

.top-nav--fixed {
    gap: 40px;
}

.hero__nav {
    justify-content: space-between;
    width: 100%;
    padding: 30px 0;
    align-items: center;
}

.nav-link {
    text-align: center;
    cursor: pointer;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--color-white);
}

.burger-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
    z-index: 101;
}

.burger-btn span {
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    transition: all 0.3s;
}

.burger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.burger-btn.active span:nth-child(2) {
    opacity: 0;
}
.burger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Section Common */
.section {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.container {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 1860px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('/assets/hero.png');
    background-size: cover;
    background-position: center;
    z-index: 1;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2;
}

.hero__container {
    min-height: 100vh;
    padding-top: 20px;
    padding-bottom: 40px;
    display: flex;
    flex-direction: column;
}

.hero__logo-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
}

.hero__big-logo {
    max-width: 100%;
    height: auto;
    max-height: 20vh;
    object-fit: contain;
}

.hero__content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.hero__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 180px;
    line-height: 0.85;
    text-transform: uppercase;
    color: var(--color-white);
    margin-top: 8vh;
}

.hero__bottom {
    margin-top: auto;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    width: 100%;
    padding-bottom: 10px;
}

.hero__features {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 400;
    font-size: 50px;
    line-height: 1;
    color: var(--color-white);
    max-width: 450px;
}

.hero__scroll {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 400;
    font-size: 55px;
    text-transform: uppercase;
    color: var(--color-white);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 12px;
    cursor: pointer;
    transition: transform 0.2s;
}

.hero__scroll:hover {
    transform: translateX(-50%) translateY(5px);
}

.hero__actions {
    display: flex;
    gap: 15px;
}

.btn {
    background-color: var(--color-cream);
    color: var(--color-black);
    padding: 18px 32px;
    border-radius: 12px;
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    font-weight: 500;
    text-transform: uppercase;
    display: inline-block;
    transition: 0.2s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: var(--color-white);
    transform: translateY(-2px);
}

/* About Section */
.about {
    background-color: var(--color-black);
    padding: 100px 0;
    color: var(--color-white);
}

.about__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 160px;
    line-height: 0.9;
    text-align: center;
    text-transform: uppercase;
    margin-bottom: 80px;
}

.about__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.about__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    max-width: 50%;
}

.stat-card {
    border: 2px solid var(--color-white);
    border-radius: 150px;
    padding: 30px 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-width: 380px;
    flex-grow: 1;
}

.stat-num {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 130px;
    line-height: 1;
    text-transform: uppercase;
}

.stat-desc {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 400;
    font-size: 60px;
    line-height: 1;
    margin-top: -10px;
    text-transform: lowercase;
}

.about__text-wrapper {
    max-width: 45%;
    display: flex;
    justify-content: flex-end;
}

.about__text {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 400;
    font-size: 63px;
    line-height: 1.1;
    text-align: right;
    color: var(--color-white);
}

/* Why Section */
.why {
    background-color: var(--color-blue);
    padding: 80px 0;
    color: var(--color-white);
}

.why__container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.why__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 230px;
    line-height: 0.85;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 40px;
    width: 100%;
}

.why__content {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    width: 100%;
    gap: 40px;
}

.why__info {
    display: flex;
    flex-direction: column;
    max-width: 48%;
}

.why__text {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 400;
    font-size: 51px;
    line-height: 1.05;
    margin-bottom: 20px;
}

.why__year-block {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    margin-left: -10px; 
}

.why__year-val {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-style: italic;
    font-size: 410px;
    line-height: 0.75;
    letter-spacing: -0.02em;
}

.why__year-label {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 500;
    font-size: 60px;
    text-transform: uppercase;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    margin-bottom: 40px;
    margin-left: 40px;
    opacity: 0.8;
}

.why__image-wrapper {
    width: 794px;
    height: 731px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    border-radius: 40px;
}

.why__image {
    width: 100%;
    height: 111%;
    object-fit: cover;
    filter: grayscale(100%);
}

/* Services Section */
.services {
    background-color: var(--color-black);
    padding: 100px 0;
    color: var(--color-white);
}

.services__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 230px;
    line-height: 0.85;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 60px;
}

.services__grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
    width: 100%;
    height: 800px;
}

.service-column {
    display: flex;
    flex-direction: column;
    gap: 30px;
    height: 100%;
}

.service-card {
    position: relative;
    border-radius: 40px;
    overflow: hidden;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    background-color: #111;
    cursor: pointer;
}

.service-card--tall {
    height: 100%;
}

.service-card--small {
    flex: 1;
}

.service-card__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    transition: transform 0.5s ease;
    border-radius: 40px;
}

.service-card:hover .service-card__bg {
    transform: scale(1.05);
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.6) 100%);
    z-index: 2;
    border-radius: 40px;
}

.service-card__content {
    position: relative;
    z-index: 3;
}

.service-card--right {
    justify-content: flex-start;
    align-items: flex-end;
    text-align: right;
}

.service-card--right .service-card__content {
    margin-top: 30px;
}

.service-card__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 90px;
    line-height: 0.9;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.service-card__text {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 400;
    font-size: 30px;
    line-height: 1.1;
    opacity: 0.9;
}

/* Project Info Section */
.project {
    background-color: var(--color-black);
    padding: 100px 0;
    color: var(--color-white);
}

.project__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 200px;
    line-height: 0.8;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 60px;
}

.project__content {
    display: flex;
    justify-content: space-between;
    width: 100%;
    gap: 40px;
    position: relative;
}

.project__info {
    width: 40%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    z-index: 2;
}

.project__text {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 400;
    font-size: 40px;
    line-height: 1.1;
    margin-bottom: 30px;
}

.project__price {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 400;
    font-size: 40px;
    margin-bottom: 40px;
}

.project__price-val {
    color: var(--color-green);
}

.project__btn {
    align-self: flex-start;
}

.project__image-box {
    width: 55%;
    border-radius: 40px;
    position: relative;
    z-index: 1;
    overflow: hidden;
    height: 700px; 
}

.project__img {
    width: 100%; 
    height: 100%; 
    object-fit: cover; 
}

/* Projects Slider (UPDATED) */
.projects-slider {
    background-color: var(--color-black);
    padding: 100px 0;
    color: var(--color-white);
    overflow: hidden;
}

.projects-slider__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 200px;
    line-height: 0.85;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 60px;
}

.projects-slider__wrapper {
    display: flex;
    justify-content: space-between;
    align-items: flex-start; 
    gap: 40px;
    height: 700px;
}

.projects-slider__menu {
    width: 45%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: none;
    -ms-overflow-style: none;
    user-select: none;
    position: relative;
    padding: 50px 0;
    mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 80%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 80%, transparent 100%);
}

.projects-slider__menu::-webkit-scrollbar {
    display: none;
}

.projects-slider__item {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 500;
    font-size: 110px;
    line-height: 0.85;
    color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    align-items: center;
    white-space: nowrap;
    margin-left: 20px;
}

.projects-slider__item:hover {
    color: rgba(255, 255, 255, 0.8);
}

.projects-slider__item.active {
    color: var(--color-green);
    margin-left: 0;
    z-index: 2;
    opacity: 1;
}

.projects-slider__icon {
    width: 0;
    height: 70px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    flex-shrink: 0;
    opacity: 0;
    margin-right: 0;
    transition: all 0.3s ease;
    overflow: hidden;
}

.projects-slider__item.active .projects-slider__icon {
    width: 70px;
    opacity: 1;
    margin-right: 20px;
}

.projects-slider__display {
    width: 55%;
    height: 100%;
    border-radius: 40px;
    overflow: hidden;
    position: relative;
    background-color: #111;
    padding: 0;
    display: block;
}

.project-current-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: opacity 0.3s ease-in-out;
    opacity: 1;
    display: block;
    cursor: pointer;
}

.project-current-img.loading {
    opacity: 0.5;
}

/* Internal Arrows */
.project-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s;
    user-select: none;
    opacity: 0;
}

.projects-slider__display:hover .project-arrow {
    opacity: 1;
}

.project-arrow:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-green);
}

.project-arrow--prev {
    left: 20px;
}

.project-arrow--next {
    right: 20px;
}

.project-slider-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s ease;
    width: 100%;
}

.project-slide-item {
    min-width: 100%;
    height: 100%;
    position: relative;
    cursor: pointer;
}

.project-slide-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Internal Arrows */
.project-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s;
    user-select: none;
    opacity: 0;
}

.projects-slider__display:hover .project-arrow {
    opacity: 1;
}

.project-arrow:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-green);
}

.project-arrow--prev {
    left: 20px;
}

.project-arrow--next {
    right: 20px;
}


/* Certificates Section */
.certificates {
    background-color: var(--color-black);
    padding: 100px 0;
    color: var(--color-white);
    overflow: hidden;
}

.certificates__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 160px;
    line-height: 0.8;
    text-transform: uppercase;
    margin-bottom: 60px;
}

.certificates__wrapper {
    display: flex;
    gap: 40px;
    overflow-x: hidden; 
    padding-bottom: 20px;
    white-space: nowrap;
    cursor: grab;
    touch-action: pan-y;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.certificates__wrapper::-webkit-scrollbar {
    display: none;
}

.certificates__wrapper:active {
    cursor: grabbing;
}

.certificates__card {
    min-width: 500px;
    height: 700px;
    border-radius: 30px;
    overflow: hidden;
    background-color: var(--color-cream);
    flex-shrink: 0;
    transition: transform 0.3s ease;
    cursor: zoom-in;
    user-select: none;
}

.certificates__card:hover {
    transform: translateY(-10px);
}

.certificates__card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

/* Calculator Section */
.calculator {
    background-color: var(--color-blue);
    padding: 100px 0;
    color: var(--color-white);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.calculator__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 180px;
    line-height: 0.85;
    text-transform: uppercase;
    margin-bottom: 60px;
    text-align: left;
}

.calculator__content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 60px;
}

.calculator__form {
    width: 50%;
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.calc-row {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.calc-label-group {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.calc-label {
    font-family: 'Roboto', sans-serif;
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.calc-value {
    font-family: 'Alumni Sans', sans-serif;
    font-size: 60px;
    font-weight: 700;
    color: var(--color-cream);
    line-height: 0.8;
}

.calc-range {
    width: 100%;
    -webkit-appearance: none;
    background: transparent;
    cursor: pointer;
}

.calc-range::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
}

.calc-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 30px;
    width: 30px;
    border-radius: 50%;
    background: var(--color-cream);
    margin-top: -13px;
    transition: transform 0.2s;
}

.calc-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.calc-toggles {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.calc-radio-group input[type="radio"] {
    display: none;
}

.calc-radio-btn {
    display: inline-block;
    padding: 15px 30px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 30px;
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.8);
}

.calc-radio-group input[type="radio"]:checked + .calc-radio-btn {
    background-color: var(--color-cream);
    color: var(--color-black);
    border-color: var(--color-cream);
    font-weight: 500;
}

.calc-options {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 30px;
}

.checkbox-container {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 35px;
    cursor: pointer;
    font-family: 'Roboto', sans-serif;
    font-size: 18px;
    color: var(--color-white);
    user-select: none;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 25px;
    width: 25px;
    background-color: transparent;
    border: 2px solid var(--color-cream);
    border-radius: 5px;
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--color-cream);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 8px;
    top: 3px;
    width: 5px;
    height: 12px;
    border: solid var(--color-black);
    border-width: 0 3px 3px 0;
    transform: rotate(45deg);
}

.calculator__result {
    width: 45%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.result-box {
    background-color: var(--color-dark-gray);
    border-radius: 40px;
    padding: 60px 40px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.result-label {
    font-family: 'Roboto', sans-serif;
    font-size: 24px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.result-price {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 120px;
    color: var(--color-green);
    line-height: 1;
    margin-bottom: 10px;
}

.result-note {
    font-family: 'Roboto', sans-serif;
    font-size: 18px;
    color: var(--color-white);
    margin-bottom: 30px;
    opacity: 0.8;
}

.result-disclaimer {
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 40px;
    line-height: 1.4;
}

.calc-btn {
    width: 100%;
    text-align: center;
}

/* Pricelist Section */
.pricelist {
    background-color: var(--color-black);
    padding: 100px 0;
    color: var(--color-white);
}

.pricelist__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 180px;
    line-height: 0.85;
    text-transform: uppercase;
    margin-bottom: 60px;
    text-align: right;
}

.pricelist__wrapper {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.accordion-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.accordion-header {
    padding: 30px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: color 0.3s;
}

.accordion-header:hover {
    color: var(--color-green);
}

.accordion-title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 500;
    font-size: 60px;
    text-transform: uppercase;
}

.accordion-icon {
    font-family: 'Roboto', sans-serif;
    font-size: 40px;
    font-weight: 300;
    transition: transform 0.3s;
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
    color: var(--color-green);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
}

.price-table {
    padding: 20px 0 50px 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: 'Roboto', sans-serif;
    font-size: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 10px;
}

.price-name {
    flex: 1;
    color: rgba(255, 255, 255, 0.8);
}

.price-unit {
    width: 80px;
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
}

.price-val {
    width: 120px;
    text-align: right;
    color: var(--color-green);
    font-weight: 500;
}

/* Contacts Block */
.contacts-block {
    background-color: var(--color-black);
    padding: 80px 0;
    color: var(--color-white);
}
.contacts-block__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 160px;
    line-height: 0.85;
    margin-bottom: 60px;
    text-transform: uppercase;
}
.contacts-block__wrapper {
    display: flex;
    justify-content: space-between;
}
.contacts-block__item h3 {
    font-family: 'Roboto', sans-serif;
    font-size: 20px;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    margin-bottom: 15px;
}
.contacts-block__item p, .contacts-block__item a {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 500;
    font-size: 40px;
    line-height: 1;
    display: block;
    margin-bottom: 10px;
    color: var(--color-white);
}
.contacts-block__link:hover {
    color: var(--color-green);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox__content {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 0 50px rgba(0,0,0,0.5);
}

.lightbox__close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #FFF;
    font-size: 50px;
    cursor: pointer;
    z-index: 1001;
}

.lightbox__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 60px;
    color: #FFF;
    cursor: pointer;
    user-select: none;
    padding: 20px;
    transition: color 0.3s;
    z-index: 1002;
}

.lightbox__arrow:hover {
    color: var(--color-green);
}

.lightbox__arrow--prev {
    left: 40px;
}

.lightbox__arrow--next {
    right: 40px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}
.modal.active { display: flex; }
.modal__content {
    background: #1C1C1C;
    padding: 0;
    border-radius: 30px;
    width: 500px;
    max-width: 90%;
    position: relative;
    border: 1px solid #333;
    text-align: center;
    overflow: hidden;
}
.modal__banner {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}
.modal__close {
    position: absolute; top: 15px; right: 20px; font-size: 30px; cursor: pointer; color: #fff; z-index: 10; text-shadow: 0 0 5px rgba(0,0,0,0.5);
}
.modal__title {
    font-family: 'Alumni Sans', sans-serif; font-size: 50px; margin: 20px 0 10px 0; color: var(--color-cream);
    padding: 0 30px;
}
.modal__desc { 
    font-size: 18px; margin-bottom: 20px; color: #bbb; padding: 0 30px; 
}
.modal__form { display: flex; flex-direction: column; gap: 15px; padding: 0 30px 30px 30px; }
.modal__input {
    background: transparent; border: 1px solid #555; padding: 15px; border-radius: 10px; color: #fff; font-size: 16px;
}
.modal__btn { width: 100%; }

/* Last Section (Contacts Form + Footer) */
.last-section {
    background-color: var(--color-black);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-part {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 40px;
    padding-bottom: 40px;
}

.contact__container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    width: 100%;
}

.contact__form {
    width: 45%;
    display: flex;
    flex-direction: column;
}

.contact__title {
    width: 50%;
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 170px;
    line-height: 0.85;
    text-transform: uppercase;
    text-align: right;
    color: var(--color-white);
}

.contact__row {
    display: flex;
    gap: 60px;
    margin-bottom: 40px;
}

.contact__field {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.contact__field--full {
    width: 100%;
    margin-bottom: 50px;
}

.contact__field label {
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    color: #A0A0A0;
    margin-bottom: 5px;
}

.contact__field input {
    background: transparent;
    border: none;
    border-bottom: 1px solid #666;
    padding: 10px 0;
    font-family: 'Roboto', sans-serif;
    font-size: 20px;
    color: var(--color-cream);
    outline: none;
    width: 100%;
    transition: border-color 0.3s;
}

.contact__field input:focus {
    border-bottom-color: var(--color-white);
}

.contact__field input::placeholder {
    color: #666;
}

.contact__btn {
    padding: 16px 36px;
    border-radius: 8px;
    font-size: 16px;
    letter-spacing: 0.05em;
    align-self: flex-start;
}

/* Footer */
.footer {
    background-color: var(--color-light-gray);
    border-radius: 40px 40px 0 0;
    padding: 60px 0 30px 0;
    color: var(--color-black);
    width: 100%;
    flex-shrink: 0;
    position: relative;
    z-index: 10;
}

.footer__container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.footer__top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
}

.footer__logo-block {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer__logo-img {
    max-width: 400px;
    height: auto;
    filter: brightness(0);
}

.footer__cols {
    display: flex;
    gap: 100px;
    padding-right: 50px;
}

.footer__col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer__heading {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 36px;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.footer__link, .footer__text {
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    color: #333;
    line-height: 1.4;
    transition: color 0.2s;
}

.footer__link:hover {
    color: #000;
    text-decoration: underline;
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 500;
    font-size: 18px;
    text-transform: lowercase;
    color: #444;
}

.footer__legal {
    display: flex;
    gap: 20px;
}

.footer__legal a {
    text-decoration: none;
}
.footer__legal a:hover {
    text-decoration: underline;
}

/* Privacy Page */
.privacy-body {
    overflow-y: auto !important;
    background-color: var(--color-black);
}

.privacy-section {
    padding-top: 150px;
    padding-bottom: 100px;
    background-color: var(--color-black);
    color: var(--color-cream);
    min-height: 100vh;
    height: auto !important;
}

.privacy__container {
    max-width: 1000px;
    margin: 0 auto;
}

.privacy__title {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 700;
    font-size: 100px;
    line-height: 0.85;
    text-transform: uppercase;
    color: var(--color-white);
    margin-bottom: 20px;
}

.privacy__subtitle {
    font-family: 'Roboto', sans-serif;
    font-size: 24px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 60px;
}

.privacy__content {
    font-family: 'Roboto', sans-serif;
    font-size: 18px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

.privacy__block {
    margin-bottom: 40px;
}

.privacy__block h2 {
    font-family: 'Alumni Sans', sans-serif;
    font-weight: 600;
    font-size: 40px;
    color: var(--color-white);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.privacy__block h3 {
    font-family: 'Roboto', sans-serif;
    font-weight: 500;
    font-size: 22px;
    color: var(--color-cream);
    margin-top: 20px;
    margin-bottom: 15px;
}

.privacy__block p {
    margin-bottom: 15px;
}

.privacy__block ul {
    list-style-type: none;
    padding-left: 20px;
    margin-bottom: 15px;
}

.privacy__block ul li {
    position: relative;
    margin-bottom: 10px;
    padding-left: 15px;
}

.privacy__block ul li::before {
    content: "•";
    color: var(--color-green);
    position: absolute;
    left: -5px;
    font-weight: bold;
}

.privacy__block strong {
    color: var(--color-white);
    font-weight: 500;
}

/* Media Queries */
@media (min-width: 1025px) {
    body {
        overflow: hidden;
    }
    #fullpage {
        transition: transform 1s cubic-bezier(0.645, 0.045, 0.355, 1);
        width: 100%;
        height: 100vh;
    }
    .section {
        height: 100vh;
        display: flex;
        flex-direction: column;
    }
    .hero, .about, .why, .services, .project, .projects-slider, .certificates, .calculator, .pricelist, .contacts-block {
        justify-content: center;
    }
    .last-section {
        justify-content: space-between;
    }
}

@media (max-width: 1600px) {
    .container { max-width: 1400px; padding: 0 30px; }
    .hero__title { font-size: 120px; } 
    .about__title { font-size: 100px; }
    .stat-card { padding: 15px 25px; min-width: auto; }
    .stat-num { font-size: 80px; }
    .stat-desc { font-size: 40px; }
    .about__text { font-size: 40px; }
    .why__title { font-size: 150px; }
    .why__year-val { font-size: 250px; }
    .why__image-wrapper { height: 50vh; width: 40%; }
    .services__title { font-size: 150px; }
    .service-card__title { font-size: 60px; }
    .project__title { font-size: 130px; }
    .projects-slider__title { font-size: 150px; }
    .projects-slider__item { font-size: 90px; }
    .projects-slider__wrapper { height: 600px; }
    .certificates__title { font-size: 110px; }
    .certificates__card { min-width: 350px; height: 50vh; }
    .calculator__title { font-size: 110px; }
    .calc-value { font-size: 40px; }
    .result-price { font-size: 80px; }
    .pricelist__title { font-size: 110px; }
    .accordion-title { font-size: 40px; }
    .contact__title { font-size: 110px; }
    .contacts-block__title { font-size: 110px; }
}

@media (max-width: 1440px) {
    .hero__title { font-size: 140px; }
    .about__title { font-size: 130px; }
    .why__title, .services__title, .project__title { font-size: 150px; }
    .why__year-val { font-size: 300px; }
    .stat-num { font-size: 100px; }
    .service-card__title { font-size: 60px; }
    .certificates__card { min-width: 350px; height: 500px; }
    .contact__title { font-size: 100px; }
    .calculator__title { font-size: 120px; }
    .result-price { font-size: 90px; }
    .pricelist__title { font-size: 120px; }
}

@media (max-width: 1366px) {
    .projects-slider__item { font-size: 80px; }
    .projects-slider__wrapper { height: 500px; }
}

@media (min-width: 1025px) and (max-width: 1300px) {
    .fixed-header__container {
        padding: 0 20px;
    }
    
    .fixed-header__logo {
        width: 130px;
    }
    
    .top-nav {
        gap: 15px;
        font-size: 15px;
    }
    
    .nav-link {
        white-space: nowrap;
    }
}

@media (max-width: 1024px) {
    .fixed-header { background-color: rgba(0,0,0,0.95); padding: 15px 0; opacity: 1; pointer-events: all; }
    .fixed-header__container { justify-content: space-between; width: 100%; padding: 0 20px; }
    .fixed-header__logo { display: block; width: 140px; }
    
    .burger-btn { display: flex; }
    
    .top-nav--fixed {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--color-black);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        font-size: 40px;
        transform: translateY(-100%);
        transition: transform 0.4s ease-in-out;
        z-index: 99;
    }
    
    .top-nav--fixed.active {
        transform: translateY(0);
        padding-top: 80px;
    }

    .hero__logo-wrapper { display: none; }
    .hero__nav { display: none; }
    
    .container { padding: 0 20px; }
    .hero__title { font-size: 100px; margin-top: 100px; }
    
    .about__content, .why__content, .project__content, .contact__container, .calculator__content { flex-direction: column; }
    .about__stats, .about__text-wrapper, .why__info, .why__image-wrapper, .project__info, .project__image-box, .contact__form, .contact__title, .calculator__form, .calculator__result { max-width: 100%; width: 100%; }
    .about__stats { justify-content: center; }
    .about__text { text-align: left; margin-top: 30px; font-size: 40px; }
    .why__image-wrapper { height: 500px; margin-top: 40px; }
    .services__grid { grid-template-columns: 1fr; height: auto; }
    .service-column { height: auto; gap: 20px; }
    .service-card { height: 400px; margin-bottom: 20px; }
    .service-column .service-card { margin-bottom: 0; }
    
    .projects-slider__wrapper { flex-direction: column; height: auto; gap: 20px; }
    .projects-slider__display { width: 100%; height: 400px; order: 1; border-radius: 30px; padding: 10px; }
    .projects-slider__menu { width: 100%; height: 350px; order: 2; padding: 20px 0; }
    .projects-slider__item { font-size: 80px; justify-content: flex-start; }

    .footer__top { flex-direction: column; gap: 40px; }
    .footer__cols { flex-wrap: wrap; gap: 40px; padding-right: 0; }
    .contact__title { text-align: left; margin-top: 40px; font-size: 80px; }
    .certificates__title { font-size: 100px; }
    .calculator__title { font-size: 100px; text-align: center; }
    .calculator__form { margin-bottom: 40px; }
    .pricelist__title { font-size: 100px; text-align: center; }
    .accordion-title { font-size: 40px; }
    
    .section { height: auto !important; min-height: 0; }
    .footer { border-radius: 40px 40px 0 0; padding-bottom: 40px; }
    .last-section { display: block; height: auto; background-color: var(--color-light-gray); }
    .contact-part { padding-bottom: 60px; background-color: var(--color-black); }

    .project__image-box { height: 400px; margin-top: 40px; }
    .modal__content { padding: 0; width: 90%; }
    .modal__title { font-size: 40px; }
    .modal__banner { height: 150px; }
    
    .contacts-block__wrapper { flex-direction: column; gap: 30px; }
    .contacts-block__item p, .contacts-block__item a { font-size: 30px; }
    
    .privacy-section { padding-top: 120px; padding-bottom: 60px; }
    .privacy__title { font-size: 50px; margin-bottom: 20px; }
    .privacy__subtitle { font-size: 18px; margin-bottom: 40px; }
    .privacy__block h2 { font-size: 32px; }
    .privacy__content { font-size: 16px; }
}

@media (max-width: 768px) {
    .hero { min-height: 100vh; }
    .container { padding: 0 16px; }
    .hero__container { padding-top: 100px; }
    
    .hero__title { font-size: 60px; margin-top: 0; line-height: 1.1; }
    
    .hero__features { display: none; }
    .hero__scroll { display: none; }
    
    .hero__actions { flex-direction: column; width: 100%; gap: 10px; margin-top: 40px; }
    .btn { width: 100%; text-align: center; padding: 16px; font-size: 16px; }
    .hero__bottom { padding-bottom: 30px; }
    
    .stat-card { min-width: 100%; padding: 20px; margin-bottom: 10px; }
    .stat-num { font-size: 70px; }
    .stat-desc { font-size: 30px; }
    
    .why__title, .services__title, .project__title, .projects-slider__title, .about__title, .certificates__title, .calculator__title, .pricelist__title, .contact__title, .contacts-block__title {
        font-size: 70px; 
        line-height: 1;
        word-wrap: break-word;
        margin-bottom: 30px;
    }

    .about__text { font-size: 24px; line-height: 1.3; }
    .why__text {font-size: 25px;line-height: 1;word-wrap: break-word;}
    
    .why__year-block { flex-direction: column; align-items: flex-start; margin-left: 0; }
    .why__year-val {font-size: 170px;line-height: 1;}
    .why__year-label { 
        writing-mode: horizontal-tb; transform: none; 
        font-size: 35px; margin: 0; margin-left: 5px; margin-top: -35px;
    }
    
    .service-card__title {font-size: 40px;margin-top: 80px;}
    .service-card { height: 350px; }
    
    .project__text { font-size: 24px; line-height: 1.3; }
    .project__price { font-size: 30px; }

    .projects-slider__menu { height: 350px; }
    .projects-slider__display { height: 250px; border-radius: 20px; }
    .projects-slider__item { font-size: 65px; line-height: 0.9; }
    .projects-slider__icon { height: 45px; font-size: 24px; border-radius: 8px; }
    .projects-slider__item.active .projects-slider__icon { width: 45px; margin-right: 15px; }
    
    .certificates__card { min-width: 85vw; height: 400px; }
    
    .contact__row { flex-direction: column; gap: 20px; margin-bottom: 20px; }
    .calc-toggles { flex-direction: column; gap: 10px; }
    .calc-radio-btn { width: 100%; text-align: center; }
    .result-price { font-size: 60px; }
    
    .accordion-title { font-size: 24px; }
    .price-row { font-size: 14px; }
    .price-val { width: 80px; }
    .price-unit { width: 40px; }
    
    .footer__bottom { flex-direction: column; align-items: flex-start; gap: 15px; }
    .footer__cols { display: flex; flex-direction: column; gap: 30px; }
    .footer__logo-img { max-width: 180px; }
    
    .hero__big-logo { max-height: 50px; }

    .project__image-box { height: 300px; }
    .modal__content { padding: 0; width: 90%; }
    .modal__title { font-size: 40px; }
    .modal__banner { height: 150px; }
    
    .contacts-block__wrapper { flex-direction: column; gap: 30px; }
    .contacts-block__item p, .contacts-block__item a { font-size: 30px; }
    
    .privacy-section { padding-top: 120px; padding-bottom: 60px; }
    .privacy__title { font-size: 50px; margin-bottom: 20px; }
    .privacy__subtitle { font-size: 18px; margin-bottom: 40px; }
    .privacy__block h2 { font-size: 32px; }
    .privacy__content { font-size: 16px; }
}