/* Skeleton Loader */
.skeleton {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
}

.skeleton.hidden {
    opacity: 0;
    pointer-events: none;
}

.skeleton__logo {
    width: 150px;
    height: auto;
    animation: flyLogo 4s ease-in-out infinite;
}

@keyframes flyLogo {
    0% {
        transform: translateX(-100vw);
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    80% {
        opacity: 1;
    }
    100% {
        transform: translateX(100vw);
        opacity: 0;
    }
}

/* Font */
@font-face {
    font-family: 'Suisse Intl';
    src: url('fonts/suisseintl-book.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* Reset */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

body {
    font-family: 'Suisse Intl', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 400;
    line-height: 1.2;
    color: #1a1a1a;
    background-color: #f5f5f5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
    position: relative;
}

.hero__logo {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.125rem;
    color: #888;
    letter-spacing: 0.02em;
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    max-width: 1200px;
}

/* Marquee */
.marquee {
    position: absolute;
    bottom: 40px;
    left: 0;
    width: 100%;
    overflow: hidden;
}

.marquee__track {
    display: flex;
    width: max-content;
    animation: marquee 25s linear infinite;
}

.marquee__logos {
    display: flex;
    align-items: center;
    gap: 60px;
    padding: 0 30px;
}

.marquee__logo {
    width: auto;
    height: 70px;
    max-width: 300px;
    object-fit: contain;
    opacity: 0.5;
    filter: grayscale(100%);
    transition: opacity 0.3s ease;
}

.marquee__logo:hover {
    opacity: 1;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-25%);
    }
}

/* Services Section */
.services {
    overflow: hidden;
    padding: 0 40px;
    margin-bottom: 80px;
}

.services__container {
    position: relative;
    width: 100%;
    max-width: 1760px;
    aspect-ratio: 1760 / 640;
    margin: 0 auto;
    border-radius: 20px;
    overflow: hidden;
}

.services__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.services__video--mobile {
    display: none;
}

.services__hands {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.services__hands--desktop {
    object-fit: cover;
}

.services__hands--mobile {
    display: none;
}

.services__title {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    color: #fff;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.2;
}

.services__hand {
    position: absolute;
    width: 260px;
    height: auto;
}

.services__hand--1 {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.services__hand--2 {
    top: 2%;
    right: -5%;
}

.services__hand--3 {
    top: 2%;
    left: -5%;
}

.services__hand--4 {
    bottom: 2%;
    left: -5%;
}

.services__hand--5 {
    bottom: 2%;
    right: -5%;
}

/* Cases Section */
.cases {
    padding: 80px 60px 0;
    background: #f5f5f5;
}

.cases__title {
    font-size: 120px;
    font-weight: 400;
    line-height: 1;
    margin-bottom: 60px;
    color: #000;
}

.cases__grid {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 20px;
}

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

.cases__card {
    flex: 0 0 calc(23.5% - 15px);
    scroll-snap-align: start;
    position: relative;
    border-radius: 24px;
    overflow: hidden;
}

.cases__image {
    width: 100%;
    height: auto;
    display: block;
    transition: opacity 0.3s ease;
}

.cases__video,
.cases__image-hover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.cases__video.active,
.cases__image-hover.active {
    opacity: 1;
}

.cases__info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px 30px 40px;
    background: rgba(200, 200, 200, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 24px 24px 0 0;
}

.cases__name {
    font-size: 36px;
    font-weight: 400;
    margin-bottom: 20px;
    color: #fff;
    white-space: nowrap;
}

.cases__metric {
    font-family: 'Noto Sans Mono', monospace;
    font-size: 20px;
    color: #fff;
    margin-bottom: 12px;
    line-height: 1.4;
}

.cases__metric:last-child {
    margin-bottom: 0;
}

/* Publications Section */
.publications {
    padding: 80px 60px 0;
    background: #f5f5f5;
}

.publications__title {
    font-size: 120px;
    font-weight: 400;
    line-height: 1;
    margin-bottom: 60px;
    color: #000;
}

.publications__grid {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 20px;
    margin-right: -40px;
}

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

.publications__item {
    flex: 0 0 auto;
    display: block;
    border-radius: 24px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.publications__item img,
.publications__item video {
    height: 300px;
    width: auto;
    object-fit: cover;
    border-radius: 24px;
}

.publications__item:hover {
    transform: scale(1.02);
}

/* How We Work Section */
.how-work {
    background-color: #000;
    color: #fff;
    padding: 80px 60px;
    margin-bottom: 80px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 80px;
    width: 100%;
}

.how-work__left {
}

.how-work__title {
    font-size: 120px;
    font-weight: 400;
    line-height: 1.02;
    letter-spacing: -0.02em;
}

.how-work__right {
    display: flex;
    flex-direction: column;
}

.how-work__step {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 50px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.how-work__step.visible {
    opacity: 1;
    transform: translateY(0);
}

.how-work__step:nth-child(1) { transition-delay: 0s; }
.how-work__step:nth-child(2) { transition-delay: 0.15s; }
.how-work__step:nth-child(3) { transition-delay: 0.3s; }
.how-work__step:nth-child(4) { transition-delay: 0.45s; }

.how-work__step:last-child {
    margin-bottom: 0;
}

.how-work__step-icon {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-shrink: 0;
    width: 80px;
    padding-top: 5px;
}

.how-work__step-icon img {
    width: 70px;
    height: auto;
}

.how-work__step-content {
}

.how-work__step-title {
    font-size: 48px;
    font-weight: 400;
    margin-bottom: 32px;
    line-height: 1;
}

.how-work__step-text {
    font-family: 'Noto Sans Mono', monospace;
    font-size: 29px;
    line-height: 37px;
    opacity: 0.7;
}

/* CTA Section */
.cta {
    padding: 0;
    margin-top: 80px;
    position: relative;
    z-index: 1;
}

.cta__container {
    position: relative;
    width: 100%;
    aspect-ratio: 1760 / 640;
    overflow: hidden;
    border-radius: 20px;
}

.cta__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cta__video--mobile {
    display: none;
}

.cta__content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 180px 40px 120px;
    color: #fff;
}

.cta__title {
    font-size: clamp(1.75rem, 5vw, 3.5rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
    max-width: 900px;
    margin-bottom: 40px;
}

.cta__subtitle {
    font-size: clamp(1rem, 2vw, 1.5rem);
    opacity: 0.9;
    margin-bottom: 30px;
    letter-spacing: 0.05em;
}

.cta__icon {
    width: 100px;
    height: auto;
    margin-top: auto;
    padding-bottom: 40px;
}

/* ==================== */
/* RESPONSIVE - TABLET  */
/* ==================== */
@media (max-width: 1200px) {
    .how-work {
        padding: 80px 50px;
        margin-bottom: 80px;
        gap: 50px;
    }

    .how-work__title {
        font-size: 90px;
    }

    .how-work__step {
        gap: 30px;
        margin-bottom: 40px;
    }

    .how-work__step-title {
        font-size: 36px;
        margin-bottom: 24px;
    }

    .how-work__step-text {
        font-size: 22px;
        line-height: 30px;
    }

    .how-work__step-icon img {
        width: 60px;
    }
}

@media (max-width: 1024px) {
    .services {
        padding: 0 20px;
        margin-bottom: 80px;
    }

    .services__title {
        display: none !important;
    }

    .how-work {
        grid-template-columns: 1fr;
        padding: 80px 40px;
        gap: 40px;
        margin: 0 auto 80px;
    }

    .how-work__title {
        font-size: 72px;
    }

    .how-work__step {
        gap: 25px;
        margin-bottom: 35px;
    }

    .how-work__step-title {
        font-size: 32px;
        margin-bottom: 20px;
    }

    .how-work__step-text {
        font-size: 18px;
        line-height: 26px;
    }

    .how-work__step-icon img {
        width: 50px;
    }

    .cta__container {
        aspect-ratio: 16 / 9;
    }

    /* Cases - Tablet */
    .cases {
        padding: 80px 20px 0;
    }

    .cases__title {
        font-size: 72px;
        margin-bottom: 40px;
    }

    .cases__card {
        flex: 0 0 320px;
    }

    .cases__name {
        font-size: 28px;
    }

    .cases__metric {
        font-size: 18px;
    }

    /* Publications - Tablet */
    .publications {
        padding: 80px 20px 0;
    }

    .publications__title {
        font-size: 72px;
        margin-bottom: 40px;
    }

    .publications__item img,
    .publications__item video {
        height: 320px;
    }
}

/* ==================== */
/* RESPONSIVE - MOBILE  */
/* ==================== */
@media (max-width: 768px) {
    .hero {
        padding: 40px 16px;
        min-height: 70svh;
    }

    .hero__logo {
        top: 20px;
        font-size: 1rem;
    }

    .hero__title {
        font-size: 48px;
    }

    .marquee {
        bottom: 30px;
    }

    .marquee__logos {
        gap: 40px;
        padding: 0 20px;
    }

    .marquee__logo {
        height: 56px;
        max-width: 240px;
    }

    .services {
        padding: 0 16px;
        margin-bottom: 60px;
    }

    .services__container {
        aspect-ratio: 4 / 3;
        border-radius: 16px;
    }

    .services__video--desktop,
    .cta__video--desktop {
        display: none;
    }

    .services__video--mobile,
    .cta__video--mobile {
        display: block;
    }

    .services__video--mobile {
        object-position: center bottom;
    }

    .services__hands--desktop {
        display: none;
    }

    .services__hands--mobile {
        display: block;
    }

    .services__title {
        display: none;
    }

    .how-work {
        padding: 60px 20px;
        gap: 30px;
        margin: 0 auto 60px;
        border-radius: 16px;
    }

    .how-work__title {
        font-size: 48px;
    }

    .how-work__step {
        gap: 20px;
        margin-bottom: 30px;
    }

    .how-work__step-icon {
        width: 50px;
    }

    .how-work__step-icon img {
        width: 40px;
    }

    .how-work__step-title {
        font-size: 24px;
        margin-bottom: 16px;
    }

    .how-work__step-text {
        font-size: 15px;
        line-height: 22px;
    }

    .cta {
        margin-top: 60px;
    }

    .cta__container {
        aspect-ratio: 4 / 3;
        border-radius: 16px;
    }

    .cta__content {
        padding: 30px 20px;
    }

    .cta__title {
        margin-bottom: 25px;
        font-size: 48px;
        text-align: center;
    }

    .cta__subtitle {
        margin-bottom: 20px;
    }

    .cta__icon {
        width: 80px !important;
        position: static !important;
        margin-top: 60px !important;
        margin-bottom: 0 !important;
    }

    /* Cases - Mobile */
    .cases {
        padding: 60px 16px 0;
    }

    .cases__title {
        font-size: 48px;
        margin-bottom: 30px;
    }

    .cases__grid {
        gap: 12px;
    }

    .cases__card {
        flex: 0 0 280px;
        border-radius: 16px;
    }

    .cases__info {
        padding: 20px;
        border-radius: 16px 16px 0 0;
    }

    .cases__name {
        font-size: 24px;
        margin-bottom: 12px;
    }

    .cases__metric {
        font-size: 16px;
    }

    /* Publications - Mobile */
    .publications {
        padding: 60px 16px 0;
    }

    .publications__title {
        font-size: 48px;
        margin-bottom: 30px;
    }

    .publications__grid {
        gap: 12px;
        margin-right: 0;
    }

    .publications__item {
        border-radius: 16px;
    }

    .publications__item img,
    .publications__item video {
        height: auto;
        width: 80vw;
        border-radius: 16px;
    }
}

/* ======================== */
/* RESPONSIVE - SMALL MOBILE */
/* ======================== */
@media (max-width: 480px) {
    .hero__logo {
        top: 15px;
        font-size: 0.875rem;
    }

    .hero__title {
        font-size: 36px;
        line-height: 1.15;
    }

    .marquee {
        bottom: 20px;
    }

    .marquee__logos {
        gap: 25px;
        padding: 0 12px;
    }

    .marquee__logo {
        height: 44px;
        max-width: 200px;
    }

    .services {
        padding: 0 12px;
        margin-bottom: 40px;
    }

    .services__container {
        aspect-ratio: 1 / 1;
        border-radius: 12px;
    }

    .services__title {
        display: none;
    }

    .services__hand {
        width: 200px;
    }

    .how-work {
        padding: 40px 16px;
        gap: 24px;
        margin: 0 auto 40px;
        border-radius: 12px;
    }

    .how-work__title {
        font-size: 36px;
    }

    .how-work__step {
        gap: 15px;
        margin-bottom: 25px;
    }

    .how-work__step-icon {
        width: 40px;
    }

    .how-work__step-icon img {
        width: 32px;
    }

    .how-work__step-title {
        font-size: 20px;
        margin-bottom: 12px;
    }

    .how-work__step-text {
        font-size: 14px;
        line-height: 20px;
    }

    .cta {
        margin-top: 40px;
    }

    .cta__container {
        aspect-ratio: 3 / 4;
        border-radius: 12px;
    }

    .cta__content {
        padding: 20px 16px;
    }

    .cta__title {
        font-size: 36px;
        margin-bottom: 20px;
        text-align: center;
    }

    .cta__icon {
        width: 60px !important;
        position: static !important;
        margin-top: 60px !important;
        margin-bottom: 0 !important;
    }

    /* Cases - Small Mobile */
    .cases {
        padding: 40px 12px 0;
    }

    .cases__title {
        font-size: 36px;
        margin-bottom: 24px;
    }

    .cases__grid {
        gap: 10px;
    }

    .cases__card {
        flex: 0 0 240px;
        border-radius: 12px;
    }

    .cases__info {
        padding: 16px;
        border-radius: 12px 12px 0 0;
    }

    .cases__name {
        font-size: 20px;
        margin-bottom: 8px;
    }

    .cases__metric {
        font-size: 14px;
        margin-bottom: 8px;
    }

    /* Publications - Small Mobile */
    .publications {
        padding: 40px 12px 0;
    }

    .publications__title {
        font-size: 36px;
        margin-bottom: 24px;
    }

    .publications__grid {
        gap: 10px;
    }

    .publications__item {
        border-radius: 12px;
    }

    .publications__item img,
    .publications__item video {
        height: auto;
        width: 75vw;
        border-radius: 12px;
    }
}

/* Popup */
.popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    overflow: hidden;
}

.popup.active {
    opacity: 1;
    visibility: visible;
}

.popup__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
}

.popup__container {
    position: relative;
    width: 95%;
    max-width: 1400px;
    background: #000;
    border-radius: 30px;
    padding: 60px;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.popup.active .popup__container {
    transform: translateY(0);
}

.popup__close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    background: rgba(0,0,0,0.8);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s ease;
    z-index: 10;
    color: #fff;
}

.popup__close:hover {
    opacity: 0.7;
}

.popup__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.popup__left {
    color: #fff;
}

.popup__title {
    font-size: 72px;
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 50px;
    opacity: 0.7;
}

.popup__logos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px 30px;
    align-items: center;
}

.popup__logos img {
    width: 100%;
    height: 80px;
    max-width: 280px;
    object-fit: contain;
    opacity: 1;
    filter: grayscale(100%) invert(1) brightness(1.5);
}

.popup__right {
    background: #fff;
    border-radius: 20px;
    padding: 80px 50px 50px;
}

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

.popup__field input {
    width: 100%;
    padding: 20px 0;
    border: none;
    border-bottom: 1px solid #ddd;
    font-size: 18px;
    font-family: inherit;
    background: transparent;
    outline: none;
    transition: border-color 0.2s ease;
}

.popup__field input:focus {
    border-color: #2F54EB;
}

.popup__field input::placeholder {
    color: #999;
}

.popup__checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-top: 20px;
}

.popup__checkbox input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: #2F54EB;
}

.popup__checkbox label {
    font-size: 14px;
    color: #888;
    line-height: 1.4;
    cursor: pointer;
}

.popup__agreement {
    font-size: 12px;
    color: #888;
    line-height: 1.5;
    margin-top: 20px;
}

.popup__agreement a {
    color: #7CB3FF;
    text-decoration: underline;
}

.popup__submit {
    width: 100%;
    padding: 20px;
    background: #e5e5e5;
    color: #999;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-family: inherit;
    cursor: not-allowed;
    transition: background 0.2s ease, color 0.2s ease;
    margin-top: 20px;
}

.popup__submit.active {
    background: #2F54EB;
    color: #fff;
    cursor: pointer;
}

.popup__submit.active:hover {
    background: #1d3fc7;
}

.popup__success-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: auto;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.popup__success-icon.visible {
    opacity: 1;
}

@media (max-width: 1024px) {
    .popup__container {
        padding: 40px;
    }

    .popup__title {
        font-size: 56px;
    }

    .popup__content {
        gap: 50px;
    }
}

@media (max-width: 768px) {
    .popup__container {
        padding: 30px 20px;
    }

    .popup__content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .popup__title {
        font-size: 32px;
        margin-bottom: 30px;
        padding-right: 60px;
    }

    .popup__logos {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .popup__logos img {
        height: 70px;
        max-width: 240px;
    }

    .popup__right {
        padding: 30px 20px;
    }

    .popup__close {
        top: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .popup__container {
        padding: 20px 16px;
    }

    .popup__title {
        font-size: 24px;
        padding-right: 55px;
    }

    .popup__logos {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px 15px;
    }

    .popup__logos img {
        height: 56px;
        max-width: 180px;
    }

    .popup__field input {
        font-size: 16px;
        padding: 16px 0;
    }

    .popup__submit {
        font-size: 16px;
        padding: 16px;
    }
}

/* Footer */
.footer {
    background-color: #f5f5f5;
    padding: 80px 60px 140px;
}

.footer__container {
    max-width: 1760px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 60px;
}

.footer__left {
}

.footer__title {
    font-size: 64px;
    font-weight: 400;
    margin-bottom: 30px;
    color: #1a1a1a;
}

.footer__telegram {
    font-size: 56px;
    color: #2F54EB;
    text-decoration: none;
    transition: opacity 0.2s ease;
    display: block;
    margin-bottom: 16px;
}

.footer__telegram:hover {
    opacity: 0.7;
}

.footer__email {
    font-size: 56px;
    color: #2F54EB;
    text-decoration: none;
    transition: opacity 0.2s ease;
    display: block;
    margin-bottom: 40px;
}

.footer__email:hover {
    opacity: 0.7;
}

.footer__links {
    display: flex;
    gap: 40px;
}

.footer__right {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
    text-align: right;
}

.footer__link {
    font-size: 20px;
    color: #1a1a1a;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.footer__link:hover {
    opacity: 0.6;
}

.footer__info {
}

.footer__company {
    font-size: 16px;
    color: #888;
    margin-bottom: 8px;
}

.footer__address {
    font-size: 16px;
    color: #888;
    line-height: 1.5;
}

@media (max-width: 1024px) {
    .footer {
        padding: 60px 40px 125px;
    }

    .footer__title {
        font-size: 48px;
    }

    .footer__telegram,
    .footer__email {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .footer {
        padding: 50px 20px 110px;
    }

    .footer__container {
        flex-direction: column;
        gap: 40px;
    }

    .footer__title {
        font-size: 36px;
        margin-bottom: 20px;
    }

    .footer__telegram,
    .footer__email {
        font-size: 28px;
    }

    .footer__right {
        align-items: flex-start;
        text-align: left;
    }

    .footer__links {
        gap: 30px;
        margin-bottom: 30px;
    }

    .footer__link {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .footer {
        padding: 40px 16px 100px;
    }

    .footer__title {
        font-size: 28px;
    }

    .footer__telegram,
    .footer__email {
        font-size: 22px;
    }

    .footer__links {
        gap: 20px;
    }

    .footer__link {
        font-size: 16px;
    }

    .footer__company,
    .footer__address {
        font-size: 14px;
    }
}

/* Fixed Navigation Bar */
.fixed-nav {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.fixed-nav.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.fixed-nav__container {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 12px 16px 24px;
    background: rgba(80, 80, 80, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
}

.fixed-nav__link {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    padding: 16px 28px;
    border-radius: 12px;
    transition: background 0.2s ease, opacity 0.2s ease;
    white-space: nowrap;
}

.fixed-nav__link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.fixed-nav__btn {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    padding: 24px 48px;
    margin: -8px -8px -8px 0;
    background: #2F54EB;
    border-radius: 16px;
    transition: background 0.2s ease;
    white-space: nowrap;
}

.fixed-nav__btn:hover {
    background: #1d3fc7;
}

@media (max-width: 768px) {
    .fixed-nav {
        bottom: 20px;
        left: 16px;
        right: 16px;
        transform: translateY(100px);
    }

    .fixed-nav.visible {
        transform: translateY(0);
    }

    .fixed-nav__container {
        justify-content: center;
        width: 100%;
        padding: 0;
        background: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .fixed-nav__link {
        display: none;
    }

    .fixed-nav__btn {
        font-size: 16px;
        padding: 18px 32px;
        margin: 0;
        border-radius: 16px;
    }

}

@media (max-width: 480px) {
    .fixed-nav {
        bottom: 16px;
        left: 12px;
        right: 12px;
    }

    .fixed-nav__btn {
        font-size: 15px;
        padding: 16px 28px;
    }
}

/* ==================== */
/* Large Screens (1440px+) */
/* ==================== */
@media (min-width: 1440px) {
    html {
        font-size: 18px;
    }

    .hero__title {
        font-size: 5rem;
    }

    .hero__logo {
        font-size: 1.25rem;
    }

    .marquee__logo {
        max-width: 360px;
    }

    .services {
        padding: 0 60px;
        margin-bottom: 100px;
    }

    .services__container {
        max-width: 1920px;
    }

    .cases {
        padding: 100px 80px 0;
    }

    .cases__title,
    .publications__title {
        font-size: 140px;
    }

    .cases__card {
        flex: 0 0 calc(22% - 15px);
    }

    .cases__name {
        font-size: 42px;
    }

    .cases__metric {
        font-size: 24px;
    }

    .publications {
        padding: 100px 80px 0;
    }

    .publications__item img,
    .publications__item video {
        height: 360px;
    }

    .how-work {
        padding: 100px 80px;
        margin-bottom: 100px;
        gap: 100px;
    }

    .how-work__title {
        font-size: 140px;
    }

    .how-work__step-title {
        font-size: 56px;
    }

    .how-work__step-text {
        font-size: 32px;
        line-height: 42px;
    }

    .how-work__step-icon img {
        width: 85px;
    }

    .cta__title {
        font-size: 4rem;
    }

    .footer {
        padding: 80px 80px 140px;
    }

    .footer__title {
        font-size: 140px;
    }
}

/* ==================== */
/* Extra Large Screens (1920px+) */
/* ==================== */
@media (min-width: 1920px) {
    html {
        font-size: 20px;
    }

    .hero {
        padding: 80px 40px;
    }

    .hero__title {
        font-size: 5.5rem;
        max-width: 1400px;
    }

    .hero__logo {
        top: 80px;
        font-size: 1.4rem;
    }

    .marquee__logo {
        max-width: 400px;
    }

    .services {
        padding: 0 80px;
        margin-bottom: 120px;
    }

    .services__container {
        max-width: 2200px;
        border-radius: 30px;
    }

    .cases {
        padding: 120px 100px 0;
    }

    .cases__title,
    .publications__title {
        font-size: 160px;
        margin-bottom: 80px;
    }

    .cases__grid {
        gap: 30px;
    }

    .cases__card {
        flex: 0 0 calc(20% - 24px);
        border-radius: 32px;
    }

    .cases__info {
        padding: 40px 40px 50px;
        border-radius: 32px 32px 0 0;
    }

    .cases__name {
        font-size: 48px;
    }

    .cases__metric {
        font-size: 28px;
    }

    .publications {
        padding: 120px 100px 0;
    }

    .publications__grid {
        gap: 30px;
    }

    .publications__item img,
    .publications__item video {
        height: 420px;
        border-radius: 32px;
    }

    .publications__item {
        border-radius: 32px;
    }

    .how-work {
        padding: 120px 100px;
        gap: 120px;
        margin: 0 0 120px;
        border-radius: 30px;
    }

    .how-work__title {
        font-size: 160px;
    }

    .how-work__step {
        gap: 50px;
        margin-bottom: 70px;
    }

    .how-work__step-icon {
        width: 100px;
    }

    .how-work__step-icon img {
        width: 100px;
    }

    .how-work__step-title {
        font-size: 64px;
        margin-bottom: 40px;
    }

    .how-work__step-text {
        font-size: 36px;
        line-height: 48px;
    }

    .cta {
        margin-top: 120px;
    }

    .cta__container {
        border-radius: 30px;
    }

    .cta__title {
        font-size: 4.5rem;
        max-width: 1100px;
    }

    .cta__btn {
        font-size: 1.3rem;
        padding: 24px 50px;
    }

    .footer {
        padding: 100px 100px 140px;
    }

    .footer__title {
        font-size: 160px;
    }

    .footer__grid {
        gap: 80px;
    }
}

/* ==================== */
/* 4K / Ultra Wide Screens (2560px+) */
/* ==================== */
@media (min-width: 2560px) {
    html {
        font-size: 24px;
    }

    .hero {
        padding: 100px 60px;
    }

    .hero__title {
        font-size: 6.5rem;
        max-width: 1800px;
    }

    .hero__logo {
        top: 100px;
        font-size: 1.6rem;
    }

    .marquee__logo {
        max-width: 520px;
    }

    .services {
        padding: 0 120px;
        margin-bottom: 160px;
    }

    .services__container {
        max-width: 2800px;
        border-radius: 40px;
    }

    .cases {
        padding: 160px 140px 0;
    }

    .cases__title,
    .publications__title {
        font-size: 200px;
        margin-bottom: 100px;
    }

    .cases__grid {
        gap: 40px;
    }

    .cases__card {
        flex: 0 0 calc(18% - 32px);
        border-radius: 40px;
    }

    .cases__info {
        padding: 50px 50px 60px;
        border-radius: 40px 40px 0 0;
    }

    .cases__name {
        font-size: 56px;
    }

    .cases__metric {
        font-size: 32px;
    }

    .publications {
        padding: 160px 140px 0;
    }

    .publications__grid {
        gap: 40px;
    }

    .publications__item img,
    .publications__item video {
        height: 520px;
        border-radius: 40px;
    }

    .publications__item {
        border-radius: 40px;
    }

    .how-work {
        padding: 160px 140px;
        gap: 160px;
        margin: 0 0 160px;
        border-radius: 40px;
    }

    .how-work__title {
        font-size: 200px;
    }

    .how-work__step {
        gap: 70px;
        margin-bottom: 100px;
    }

    .how-work__step-icon {
        width: 140px;
    }

    .how-work__step-icon img {
        width: 130px;
    }

    .how-work__step-title {
        font-size: 80px;
        margin-bottom: 50px;
    }

    .how-work__step-text {
        font-size: 44px;
        line-height: 58px;
    }

    .cta {
        margin-top: 160px;
    }

    .cta__container {
        border-radius: 40px;
    }

    .cta__title {
        font-size: 5.5rem;
        max-width: 1400px;
    }

    .cta__btn {
        font-size: 1.5rem;
        padding: 30px 60px;
    }

    .footer {
        padding: 140px 140px 150px;
    }

    .footer__title {
        font-size: 200px;
    }

    .footer__grid {
        gap: 120px;
    }

    .fixed-nav {
        bottom: 50px;
    }
}