:root {--page-background:#f4f7f9;--surface:#fff;--text-primary:#102331;--text-secondary:#536571;--accent:#006b8f;--accent-dark:#004f6b;--border:#d9e2e7;--container-width:1200px;}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:var(--page-background);color:var(--text-primary);font-family:Arial,Helvetica,sans-serif;line-height:1.6} img{display:block;max-width:100%;height:auto} a{color:inherit}.container{width:min(calc(100% - 40px),var(--container-width));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);border-bottom:1px solid var(--border)}.header-layout{min-height:88px;display:flex;align-items:center;gap:28px}.logo{display:flex;flex:0 0 auto;align-items:center}.logo-image{display:block;width:112px;height:72px;object-fit:contain}.main-navigation{margin-left:auto}.navigation-list{display:flex;align-items:center;gap:24px;margin:0;padding:0;list-style:none}.navigation-list a{text-decoration:none;font-size:.95rem}.navigation-list a:hover,.navigation-list a:focus-visible{color:var(--accent)}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border:1px solid transparent;border-radius:4px;font-weight:700;text-decoration:none}.button-primary{background:var(--accent);color:#fff}.button-primary:hover,.button-primary:focus-visible{background:var(--accent-dark)}.button-secondary{border-color:var(--accent);background:transparent;color:var(--accent)}
.hero-section{padding:96px 0;background:var(--surface)}.hero-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(420px,1fr);align-items:center;gap:64px}.eyebrow{margin:0 0 16px;color:var(--accent);font-size:.85rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}h1,h2,p{margin-top:0}h1{max-width:760px;margin-bottom:24px;font-size:clamp(2.6rem,5vw,5rem);line-height:1.04;letter-spacing:-.04em}.hero-description{max-width:680px;margin-bottom:32px;color:var(--text-secondary);font-size:1.15rem}.hero-actions{display:flex;flex-wrap:wrap;gap:14px}.hero-media{margin:0;overflow:hidden;border:1px solid var(--border);border-radius:8px;background:var(--page-background)}
@media(max-width:980px){.main-navigation{display:none}.header-layout{justify-content:space-between}.hero-layout{grid-template-columns:1fr}}@media(max-width:640px){.header-layout{min-height:76px}.logo-image{width:94px;height:60px}.container{width:min(calc(100% - 24px),var(--container-width))}.site-header .button{display:none}.hero-section{padding:64px 0}.hero-layout{gap:40px}.hero-actions{align-items:stretch;flex-direction:column}}

/* =========================================================
   LANGUAGE SELECTOR
   ========================================================= */

.language-selector {
    position: relative;
    flex: 0 0 auto;
}

.language-selector-toggle,
.language-option {
    display: flex;
    align-items: center;
    gap: 8px;
    border: 0;
    background: transparent;
    color: var(--text-primary);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.language-selector-toggle {
    min-height: 40px;
    padding: 0 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--surface);
}

.language-selector-toggle:hover,
.language-selector-toggle:focus-visible {
    border-color: var(--accent);
    outline: none;
}

.language-flag {
    font-size: 1.05rem;
    line-height: 1;
}

.language-code {
    min-width: 22px;
    font-size: 0.78rem;
    letter-spacing: 0.06em;
}

.language-chevron {
    margin-left: 2px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    transform: translateY(-1px);
}

.language-selector.is-open .language-chevron {
    transform: rotate(180deg) translateY(1px);
}

.language-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 20;
    min-width: 96px;
    padding: 6px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--surface);
    box-shadow: 0 12px 30px rgba(16, 35, 49, 0.14);
}

.language-option {
    width: 100%;
    min-height: 36px;
    padding: 0 8px;
    border-radius: 3px;
    font-size: 0.78rem;
}

.language-option:hover,
.language-option:focus-visible,
.language-option[aria-selected="true"] {
    background: var(--page-background);
    color: var(--accent);
    outline: none;
}

/* =========================================================
   MODULAR HERO GRID
   ========================================================= */

.hero-section {
    padding: 0;
    background: var(--surface);
}

.hero-layout {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    align-items: stretch;
    min-height: 680px;
}

.hero-content {
    grid-column: 1 / span 5;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 72px 24px 72px 0;
}

.hero-media {
    grid-column: 6 / -1;
    display: block;
    margin: 0;
    overflow: hidden;
    border: 0;
    border-radius: 0;
    background: var(--page-background);
}

.hero-media img {
    width: 100%;
    height: 100%;
    min-height: 0;
    object-fit: cover;
}



/* Language-specific typography keeps every translation inside the same grid. */
html[lang="ru"] .hero-content {
    grid-column: 1 / span 6;
}

html[lang="ru"] .hero-media {
    grid-column: 7 / -1;
}

html[lang="ru"] h1 {
    max-width: 100%;
    font-size: clamp(2.35rem, 4.25vw, 4.35rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

@media (max-width: 1120px) {
    .navigation-list {
        gap: 14px;
    }

    .header-cta {
        display: none;
    }

    .hero-layout {
        min-height: 620px;
    }

    .hero-content {
        grid-column: 1 / span 6;
    }

    .hero-media {
        grid-column: 7 / -1;
    }
}

@media (max-width: 980px) {
    .hero-layout {
        grid-template-columns: 1fr;
        min-height: auto;
        border: 0;
    }

    .hero-content,
    .hero-media,
    html[lang="ru"] .hero-content,
    html[lang="ru"] .hero-media {
        grid-column: 1;
    }

    .hero-content {
        padding: 64px 0;
    }

    .hero-media {
        border-top: 1px solid var(--border);
        border-left: 0;
    }

    .hero-media img {
        aspect-ratio: 16 / 9;
    }
}

@media (max-width: 640px) {
    .language-selector-toggle {
        padding-inline: 8px;
    }

    .hero-content {
        padding: 48px 0;
    }
}


/* =========================================================
   SERVICES
   ========================================================= */

.services-section {
    padding: 112px 0 120px;
    border-top: 1px solid var(--border);
    background: var(--page-background);
}

.section-heading {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    align-items: start;
    margin-bottom: 48px;
}

.services-heading .eyebrow {
    grid-column: 1 / span 3;
    padding-top: 8px;
}

.section-heading-content {
    grid-column: 4 / span 6;
}

.services-heading h2 {
    margin: 0;
    font-size: clamp(2rem, 3.5vw, 3.6rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.methodology-heading h2 {
    margin: 0;
    font-size: clamp(2rem, 3.5vw, 3.6rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.section-introduction {
    max-width: 620px;
    margin: 12px 0 0;
    color: var(--text-secondary);
    font-size: 1rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: stretch;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.service-card {
    display: flex;
    min-height: 300px;
    height: 100%;
    flex-direction: column;
    padding: 34px 28px 30px;
    border-right: 1px solid var(--border);
    background: var(--surface);
}

.service-card:first-child {
    border-left: 1px solid var(--border);
}

.service-card h3 {
    min-height: 2.6em;
    margin: 0 0 16px;
    font-size: 1.35rem;
    line-height: 1.28;
    letter-spacing: -0.02em;
}

.service-card > p {
    margin: 0 0 28px;
    color: var(--text-secondary);
}

.service-panel-trigger {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: auto;
    padding: 18px 0 0;
    border: 0;
    border-top: 1px solid var(--border);
    background: transparent;
    color: var(--accent);
    font: inherit;
    font-size: 0.9rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
}

.service-panel-trigger:hover,
.service-panel-trigger:focus-visible,
.service-panel-trigger[aria-expanded="true"] {
    color: var(--accent-dark);
    outline: none;
}

.service-panel-trigger[aria-expanded="true"] {
    border-top-color: var(--accent);
}

.service-detail-panel {
    margin-top: 24px;
    padding: 36px;
    border: 1px solid var(--border);
    background: var(--surface);
}

.service-detail-panel[hidden] {
    display: none;
}

.service-detail-panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.service-detail-panel-header .eyebrow {
    margin-bottom: 10px;
}

.service-detail-panel-header h3 {
    margin: 0;
    font-size: clamp(1.8rem, 3vw, 3rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.service-panel-close {
    width: 32px;
    height: 32px;
    flex: 0 0 32px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--accent);
    font-size: 1.7rem;
    line-height: 1;
    cursor: pointer;
    transition: color 180ms ease;
}

.service-panel-close:hover,
.service-panel-close:focus-visible {
    color: var(--accent-dark);
    outline: none;
}

.service-detail-panel-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    padding-top: 30px;
}

.service-detail-panel-grid > div:first-child {
    grid-column: 1 / span 7;
}

.service-detail-panel-grid > div:last-child {
    grid-column: 9 / span 4;
}

.service-detail-panel h4 {
    margin: 0 0 12px;
    color: var(--text-primary);
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.service-detail-panel ul {
    margin: 0;
    padding-left: 20px;
    color: var(--text-secondary);
}

.service-detail-panel li + li {
    margin-top: 8px;
}

.service-detail-panel p {
    margin: 0;
    color: var(--text-secondary);
}

@media (max-width: 980px) {
    .services-section {
        padding: 80px 0 88px;
    }

    .services-heading .eyebrow,
    .section-heading-content {
        grid-column: 1 / -1;
    }

    .services-heading .eyebrow {
        padding-top: 0;
    }

    .services-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .service-card:nth-child(2) {
        border-right: 1px solid var(--border);
    }

    .service-card:nth-child(3),
    .service-card:nth-child(4) {
        border-top: 1px solid var(--border);
    }

    .service-card:nth-child(3) {
        border-left: 1px solid var(--border);
    }

    .service-detail-panel-grid > div:first-child,
    .service-detail-panel-grid > div:last-child {
        grid-column: 1 / -1;
    }

    .service-detail-panel-grid > div:last-child {
        margin-top: 28px;
    }
}

@media (max-width: 640px) {
    .services-section {
        padding: 64px 0 72px;
    }

    .section-heading {
        margin-bottom: 34px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card,
    .service-card:first-child,
    .service-card:nth-child(3) {
        min-height: 280px;
        border-right: 1px solid var(--border);
        border-left: 1px solid var(--border);
    }

    .service-card:not(:first-child) {
        border-top: 1px solid var(--border);
    }

    .services-grid > .service-detail-panel {
        grid-column: 1 / -1;
        margin-top: 0;
    }

    .service-detail-panel {
        padding: 26px 22px;
    }

    .service-detail-panel-header h3 {
        font-size: 1.75rem;
    }
}


/* =========================================================
   METHODOLOGY
   ========================================================= */

.methodology-section {
    padding: 112px 0 120px;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.methodology-steps {
    border-top: 1px solid var(--border);
}

.methodology-step {
    position: relative;
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    align-items: center;
    min-height: 190px;
    padding: 34px 0;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}


.methodology-step.is-active {
    padding-right: 28px;
    padding-left: 28px;
    border: 1px solid var(--border);
    background: var(--surface);
}

.methodology-step.is-active + .methodology-step {
    border-top: 0;
}

.methodology-step-number {
    grid-column: 1 / span 3;
    align-self: center;
    margin: 0;
    color: var(--accent);
    font-size: clamp(6.5rem, 10vw, 10rem);
    font-weight: 700;
    line-height: 0.78;
    letter-spacing: -0.08em;
    opacity: 0.09;
    user-select: none;
}

.methodology-step-content {
    grid-column: 4 / span 7;
    position: relative;
    z-index: 1;
}

.methodology-step-content h3 {
    margin: 0 0 8px;
    font-size: 1.45rem;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.methodology-step-content > p {
    max-width: 680px;
    margin: 0;
    color: var(--text-secondary);
}

.methodology-panel-trigger {
    display: inline-flex;
    align-items: center;
    margin-top: 22px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--accent);
    font: inherit;
    font-size: 0.9rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
}

.methodology-panel-trigger:hover,
.methodology-panel-trigger:focus-visible,
.methodology-panel-trigger[aria-expanded="true"] {
    color: var(--accent-dark);
    outline: none;
}

.methodology-detail-panel {
    grid-column: 1 / -1;
    width: auto;
    margin: 34px -28px -34px;
    padding: 36px 28px;
    border: 0;
    border-top: 1px solid var(--border);
    background: var(--page-background);
}

.methodology-detail-panel[hidden] {
    display: none;
}

.methodology-detail-panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.methodology-detail-panel-header .eyebrow {
    margin-bottom: 10px;
}

.methodology-detail-panel-header h3 {
    margin: 0;
    font-size: clamp(1.8rem, 3vw, 3rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.methodology-panel-close {
    width: 32px;
    height: 32px;
    flex: 0 0 32px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--accent);
    font-size: 1.7rem;
    line-height: 1;
    cursor: pointer;
    transition: color 180ms ease;
}

.methodology-panel-close:hover,
.methodology-panel-close:focus-visible {
    color: var(--accent-dark);
    outline: none;
}

.methodology-detail-panel-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    padding-top: 30px;
}

.methodology-detail-panel-grid > div:nth-child(1) {
    grid-column: 1 / span 4;
}

.methodology-detail-panel-grid > div:nth-child(2) {
    grid-column: 5 / span 4;
}

.methodology-detail-panel-grid > div:nth-child(3) {
    grid-column: 9 / span 4;
}

.methodology-detail-panel h4 {
    margin: 0 0 12px;
    color: var(--text-primary);
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.methodology-detail-panel p,
.methodology-detail-panel ul {
    margin-top: 0;
    color: var(--text-secondary);
}

.methodology-detail-panel ul {
    margin-bottom: 0;
    padding-left: 20px;
}

.methodology-detail-panel li + li {
    margin-top: 8px;
}

@media (max-width: 980px) {
    .methodology-section {
        padding: 80px 0 88px;
    }

    .methodology-step-number {
        grid-column: 1 / span 3;
        font-size: clamp(5.5rem, 14vw, 8rem);
    }

    .methodology-step-content {
        grid-column: 4 / span 9;
    }

    .methodology-detail-panel-grid > div:nth-child(1),
    .methodology-detail-panel-grid > div:nth-child(2),
    .methodology-detail-panel-grid > div:nth-child(3) {
        grid-column: 1 / -1;
    }

    .methodology-detail-panel-grid > div + div {
        margin-top: 28px;
    }
}

@media (max-width: 640px) {
    .methodology-section {
        padding: 64px 0 72px;
    }

    .methodology-step {
        grid-template-columns: 1fr;
        min-height: 0;
        padding: 30px 0;
    }

    .methodology-step-number {
        position: absolute;
        top: 30px;
        right: 12px;
        grid-column: 1;
        font-size: 6rem;
        opacity: 0.07;
    }

    .methodology-step-content {
        grid-column: 1;
        padding-right: 58px;
    }


    .methodology-step.is-active {
        padding-right: 22px;
        padding-left: 22px;
    }

    .methodology-step.is-active .methodology-step-content {
        padding-right: 58px;
    }

    .methodology-detail-panel {
        margin: 30px -22px -30px;
        padding: 26px 22px;
    }

    .methodology-detail-panel-header h3 {
        font-size: 1.75rem;
    }
}

.methodology-heading .eyebrow {
    grid-column: 1 / span 3;
    padding-top: 8px;
}

.methodology-heading {
    margin-bottom: 72px;
}


/* =========================================================
   TECHNOLOGIES
   ========================================================= */
.technologies-section{padding:112px 0 120px;border-top:1px solid var(--border);background:var(--page-background)}
.technologies-heading{margin-bottom:72px}.technologies-heading .eyebrow{grid-column:1/span 3;padding-top:8px}.technologies-heading h2{margin:0;font-size:clamp(2rem,3.5vw,3.6rem);line-height:1.08;letter-spacing:-.035em}
.technology-cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));align-items:stretch;border-top:1px solid var(--border);border-left:1px solid var(--border)}
.technology-card{display:flex;min-width:0;flex-direction:column;border-right:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--surface)}
.technology-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--border)}
.technology-card-body{display:flex;min-height:250px;flex:1;flex-direction:column;padding:26px 24px 24px}.technology-card h3{min-height:2.55em;margin:0 0 14px;font-size:1.22rem;line-height:1.28;letter-spacing:-.02em}.technology-card-body>p{margin:0 0 26px;color:var(--text-secondary)}
.technology-panel-trigger{width:100%;margin-top:auto;padding:18px 0 0;border:0;border-top:1px solid var(--border);background:transparent;color:var(--accent);font:inherit;font-size:.9rem;font-weight:700;text-align:left;cursor:pointer}.technology-panel-trigger:hover,.technology-panel-trigger:focus-visible,.technology-panel-trigger[aria-expanded=true]{color:var(--accent-dark);outline:none}.technology-panel-trigger[aria-expanded=true]{border-top-color:var(--accent)}
.technology-detail-panel{margin-top:24px;padding:36px;border:1px solid var(--border);background:var(--surface)}.technology-detail-panel[hidden]{display:none}.technology-detail-panel-header{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;padding-bottom:28px;border-bottom:1px solid var(--border)}.technology-detail-panel-header .eyebrow{margin-bottom:10px}.technology-detail-panel-header h3{margin:0;font-size:clamp(1.8rem,3vw,3rem);line-height:1.1;letter-spacing:-.03em}.technology-panel-close{width:32px;height:32px;flex:0 0 32px;padding:0;border:0;background:transparent;color:var(--accent);font-size:1.7rem;line-height:1;cursor:pointer;transition:color 180ms ease}.technology-panel-close:hover,.technology-panel-close:focus-visible{color:var(--accent-dark);outline:none}
.technology-detail-panel-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:24px;padding-top:30px}.technology-detail-panel-grid>div:nth-child(1){grid-column:1/span 5}.technology-detail-panel-grid>div:nth-child(2){grid-column:6/span 4}.technology-detail-panel-grid>div:nth-child(3){grid-column:10/span 3}.technology-detail-panel h4{margin:0 0 12px;color:var(--text-primary);font-size:.82rem;letter-spacing:.08em;text-transform:uppercase}.technology-detail-panel p,.technology-detail-panel ul{margin-top:0;color:var(--text-secondary)}.technology-detail-panel ul{margin-bottom:0;padding-left:20px}.technology-detail-panel li+li{margin-top:8px}
@media(max-width:980px){.technologies-section{padding:80px 0 88px}.technologies-heading .eyebrow,.technologies-heading .section-heading-content{grid-column:1/-1}.technologies-heading .eyebrow{padding-top:0}.technology-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.technology-detail-panel-grid>div:nth-child(1),.technology-detail-panel-grid>div:nth-child(2),.technology-detail-panel-grid>div:nth-child(3){grid-column:1/-1}.technology-detail-panel-grid>div+div{margin-top:28px}}
@media(max-width:640px){.technologies-section{padding:64px 0 72px}.technologies-heading{margin-bottom:48px}.technology-cards{grid-template-columns:1fr}.technology-card-body{min-height:220px}.technology-detail-panel{padding:26px 22px}.technology-detail-panel-header h3{font-size:1.75rem}}

/* ENGINEERING EXPERIENCE */
.experience-section{padding:112px 0 120px;border-top:1px solid var(--border);background:var(--surface)}.experience-heading{margin-bottom:72px}.experience-heading .eyebrow{grid-column:1/span 3;padding-top:8px}.experience-heading h2{margin:0;font-size:clamp(2rem,3.5vw,3.6rem);line-height:1.08;letter-spacing:-.035em}.experience-list{border-top:1px solid var(--border)}.experience-case{display:grid;grid-template-columns:7fr 5fr;gap:24px;padding:48px 0;border-bottom:1px solid var(--border)}.experience-case.is-active{padding-left:28px;padding-right:28px;border:1px solid var(--border);background:var(--surface)}.experience-case.is-active+.experience-case{border-top:0}.experience-panel-slot{grid-column:1/-1;order:3;min-width:0}.experience-panel-slot:empty{display:none}.experience-case.is-active .experience-panel-slot{display:block;margin:40px -28px -48px}.experience-panel-slot .experience-detail-panel{width:100%;margin:0;padding:36px 28px;border:0;border-top:1px solid var(--border);background:var(--page-background)}.experience-case>img{grid-column:1;grid-row:1;width:100%;height:440px;object-fit:cover}.experience-case-reverse>img{grid-column:2}.experience-case-reverse .experience-case-content{grid-column:1;grid-row:1}.experience-case-content{grid-column:2;grid-row:1;display:flex;flex-direction:column;padding:0}.experience-case h3 {
    margin: 0 0 14px;
    font-size: 1.45rem;
    line-height: 1.25;
    letter-spacing: -0.02em;
}.experience-case-content>p{color:var(--text-secondary)}.experience-case-meta{padding:16px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.experience-panel-trigger{margin-top:auto;padding:20px 0 0;border:0;background:transparent;color:var(--accent);font:inherit;font-size:.9rem;font-weight:700;text-align:left;cursor:pointer}.experience-panel-trigger:hover,.experience-panel-trigger[aria-expanded=true]{color:var(--accent-dark)}.experience-detail-panel{margin-top:24px;padding:36px;border:1px solid var(--border);background:var(--page-background)}.experience-detail-panel[hidden]{display:none}.experience-detail-panel-header{display:flex;justify-content:space-between;gap:24px;padding-bottom:28px;border-bottom:1px solid var(--border)}.experience-detail-panel-header h3{margin:0;font-size:clamp(1.8rem,3vw,3rem)}.experience-panel-close{border:0;background:transparent;color:var(--accent);font-size:1.7rem;cursor:pointer}.experience-detail-panel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 24px;padding-top:30px}.experience-detail-panel h4{margin:0 0 12px;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase}.experience-detail-panel p,.experience-detail-panel ul{color:var(--text-secondary)}@media(max-width:980px){.experience-heading .eyebrow,.experience-heading .section-heading-content{grid-column:1/-1}}@media(max-width:720px){.experience-case.is-active{padding-left:22px;padding-right:22px}.experience-case.is-active .experience-panel-slot{margin:30px -22px -38px}.experience-panel-slot .experience-detail-panel{padding:26px 22px}.experience-section{padding:64px 0 72px}.experience-case{grid-template-columns:1fr}.experience-case>img,.experience-case-reverse>img{grid-column:1;grid-row:auto;height:300px}.experience-case-content,.experience-case-reverse .experience-case-content{grid-column:1;grid-row:auto}.experience-detail-panel{padding:26px 22px}.experience-detail-panel-grid{grid-template-columns:1fr}}


/* =========================================================
   ABOUT DKW
   ========================================================= */

.about-section {
    padding: 112px 0 120px;
    border-top: 1px solid var(--border);
    background: var(--page-background);
}

.about-heading {
    margin-bottom: 72px;
}

.about-heading .eyebrow {
    grid-column: 1 / span 3;
    padding-top: 8px;
}

.about-heading h2 {
    margin: 0;
    font-size: clamp(2rem, 3.5vw, 3.6rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.about-role {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    padding: 64px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.about-role-statement {
    grid-column: 1 / span 5;
}

.about-role-statement p {
    max-width: 520px;
    margin: 0;
    font-size: clamp(1.4rem, 2.65vw, 2.8rem);
    line-height: 1.08;
    letter-spacing: -0.03em;
}

.about-role-copy {
    grid-column: 7 / span 6;
}

.about-role-copy p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
}

.about-role-copy p + p {
    margin-top: 24px;
}

.about-independence {
    padding: 72px 0;
    border-bottom: 1px solid var(--border);
}

.about-independence-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--border);
    border-left: 1px solid var(--border);
}

.about-principle-card {
    position: relative;
    display: grid;
    grid-template-columns: minmax(96px, 0.9fr) minmax(0, 2fr);
    grid-template-rows: 72px minmax(0, 1fr);
    column-gap: 24px;
    align-items: start;
    min-height: 240px;
    padding: 30px 28px 34px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.about-card-number {
    position: static;
    grid-column: 1;
    grid-row: 1 / span 2;
    align-self: center;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    color: var(--accent);
    opacity: 0.09;
    font-size: clamp(7rem, 11vw, 11rem);
    font-weight: 700;
    line-height: 0.78;
    letter-spacing: -0.08em;
    pointer-events: none;
}

.about-principle-card h3 {
    grid-column: 2;
    grid-row: 1;
    align-self: start;
    margin: 0;
    font-size: 1.28rem;
    line-height: 1.25;
}

.about-principle-card p {
    grid-column: 2;
    grid-row: 2;
    align-self: start;
    margin: 0;
    color: var(--text-secondary);
}


.about-relationship {
    padding: 72px 0;
    border-bottom: 1px solid var(--border);
}

.about-relationship-head {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    margin-bottom: 48px;
}

.about-relationship-head .eyebrow {
    grid-column: 1 / span 3;
    padding-top: 7px;
}

.about-relationship-head h3 {
    grid-column: 4 / span 8;
    margin: 0;
    font-size: 1.45rem;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.about-relationship-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--border);
    border-left: 1px solid var(--border);
}

.about-relationship-node {
    min-height: 210px;
    padding: 28px 24px 30px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.about-relationship-node-main {
    position: relative;
    background: var(--page-background);
}

.about-node-label {
    display: block;
    margin-bottom: 46px;
    color: var(--text-primary);
    font-weight: 700;
}

.about-relationship-node-main .about-node-label {
    display: block;
    padding-bottom: 18px;
    margin-bottom: 22px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 1.6rem;
    letter-spacing: -0.03em;
}

.about-relationship-node p {
    margin: 0;
    color: var(--text-secondary);
}






.about-final {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    column-gap: 28px;
    align-items: start;
    padding-top: 72px;
}

.about-final-mark {
    width: 24px;
    height: 24px;
    margin-top: 8px;
    background: var(--brand-red, #d51f26);
}

.about-final-statement {
    max-width: 1020px;
    margin: 0;
    font-size: clamp(2rem, 3.8vw, 4.2rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.about-final-subtext {
    max-width: 760px;
    margin: 28px 0 0;
    color: var(--text-secondary);
    font-size: 1.05rem;
}

@media (max-width: 980px) {
    .about-section {
        padding: 80px 0 88px;
    }

    .about-heading .eyebrow,
    .about-heading .section-heading-content {
        grid-column: 1 / -1;
    }

    .about-heading .eyebrow {
        padding-top: 0;
    }

    .about-role-statement,
    .about-role-copy {
        grid-column: 1 / -1;
    }

    .about-role-copy {
        margin-top: 36px;
    }

    .about-independence-grid {
        grid-template-columns: 1fr;
    }

    .about-principle-card {
        min-height: 0;
    }

    .about-relationship-head .eyebrow,
    .about-relationship-head h3 {
        grid-column: 1 / -1;
    }

    .about-relationship-head h3 {
        margin-top: 14px;
    }

    .about-relationship-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .about-section {
        padding: 64px 0 72px;
    }

    .about-heading {
        margin-bottom: 56px;
    }

    .about-role,
    .about-independence,
    .about-relationship {
        padding: 48px 0;
    }

    .about-relationship-grid {
        grid-template-columns: 1fr;
    }

    .about-relationship-node {
        min-height: 0;
    }

    .about-final {
        grid-template-columns: 28px minmax(0, 1fr);
        column-gap: 18px;
        padding-top: 48px;
    }

    .about-final-mark {
        width: 18px;
        height: 18px;
        margin-top: 6px;
    }
}


@media (max-width:640px){.about-principle-card{grid-template-columns:76px minmax(0,1fr);column-gap:18px;min-height:200px}.about-card-number{font-size:6rem}}
/* =========================================================
   CONTACTS
   ========================================================= */
.contact-section {
    padding: 112px 0 120px;
    border-top: 1px solid var(--border);
}

.contact-heading {
    margin-bottom: 72px;
}

.contact-heading .eyebrow {
    grid-column: 1 / span 3;
    padding-top: 8px;
}

.contact-heading h2 {
    margin: 0;
    font-size: clamp(2rem, 3.5vw, 3.6rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.contact-layout {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    align-items: start;
}

.contact-aside {
    grid-column: 1 / span 3;
    padding-top: 2px;
}

.contact-aside-label {
    margin: 0 0 10px;
    color: var(--text-secondary);
    font-size: .84rem;
}

.contact-aside-link {
    display: inline-block;
    margin: 0;
    color: var(--text-primary);
    text-decoration: none;
    line-height: 1.4;
}

.contact-aside-link:hover,
.contact-aside-link:focus-visible {
    color: var(--accent);
}

.contact-form {
    grid-column: 4 / span 7;
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    column-gap: 24px;
    row-gap: 28px;
    margin: 0;
}

.contact-field {
    width: 100%;
    min-width: 0;
    justify-self: stretch;
    padding: 0;
    border: 0;
    background: transparent;
}

.contact-field > span {
    display: block;
    margin: 0 0 8px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--text-secondary);
    font-size: .84rem;
}

.contact-field input,
.contact-field textarea {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 11px 13px;
    border: 0;
    border-radius: 8px;
    outline: 0;
    background: #fff;
    color: var(--text-primary);
    box-shadow: none;
    font: inherit;
}

.contact-field input:focus,
.contact-field textarea:focus {
    outline: 1px solid var(--accent);
    outline-offset: 0;
}

.contact-field-name {
    grid-column: 1 / span 3;
}

.contact-field-company {
    grid-column: 4 / span 4;
}

.contact-field-email {
    grid-column: 1 / span 4;
}

.contact-field-task {
    grid-column: 1 / -1;
}

.contact-field textarea {
    min-height: 132px;
    resize: vertical;
}

.contact-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    grid-column: 1 / -1;
    justify-self: start;
    width: auto;
    margin-top: 2px;
    padding: 14px 22px;
    border: 0;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    visibility: visible;
    opacity: 1;
}

.contact-submit:hover,
.contact-submit:focus-visible {
    opacity: .86;
    outline: none;
}

.contact-submit:disabled {
    cursor: wait;
    opacity: .58;
}

.contact-form-status {
    grid-column: 1 / -1;
    margin: 2px 0 0;
    color: var(--text-secondary);
    font-size: .88rem;
    line-height: 1.45;
}

.contact-form-status[data-state="success"] {
    color: var(--accent);
}

.contact-form-status[data-state="error"] {
    color: #9f2d2d;
}

@media (max-width: 980px) {
    .contact-layout {
        row-gap: 48px;
    }

    .contact-aside {
        grid-column: 1 / span 3;
    }

    .contact-form {
        grid-column: 4 / -1;
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }

    .contact-field-name {
        grid-column: 1 / span 3;
    }

    .contact-field-company {
        grid-column: 4 / span 3;
    }

    .contact-field-email {
        grid-column: 1 / span 4;
    }
}

@media (max-width: 720px) {
    .contact-section {
        padding: 72px 0 80px;
    }

    .contact-heading {
        margin-bottom: 56px;
    }

    .contact-aside,
    .contact-form {
        grid-column: 1 / -1;
    }

    .contact-aside {
        margin-bottom: 42px;
    }

    .contact-form {
        grid-template-columns: 1fr;
        row-gap: 24px;
    }

    .contact-field-name,
    .contact-field-company,
    .contact-field-email,
    .contact-field-task,
    .contact-submit {
        grid-column: 1;
    }
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
    padding: 0 0 34px;
    border-top: 0;
    background: #102331;
    color: #fff;
}

.site-footer p {
    margin-bottom: 0;
}

.footer-main {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    padding: 64px 0 58px;
}

.footer-brand {
    grid-column: 1 / span 3;
}

.footer-logo-link {
    display: inline-flex;
    align-items: center;
    max-width: 133px;
    color: var(--text-primary);
    text-decoration: none;
}

.footer-logo-link img,
.footer-logo-link svg {
    display: block;
    width: auto;
    max-width: 100%;
    height: 34px;
}

.site-footer .footer-logo-link img {
    width: 133px;
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.footer-tagline {
    max-width: 230px;
    margin: 24px 0 0;
    color: rgba(255, 255, 255, 0.68);
    font-size: .9rem;
    line-height: 1.5;
}

.footer-nav {
    grid-column: 4 / span 4;
    display: grid;
    gap: 11px;
    align-content: start;
}

.footer-nav a,
.footer-contact a {
    color: #fff;
    text-decoration: none;
}

.footer-nav a {
    width: fit-content;
    line-height: 1.35;
}

.footer-contact {
    grid-column: 10 / span 3;
}

.footer-label {
    margin: 0 0 10px;
    color: rgba(255, 255, 255, 0.68);
    font-size: .84rem;
}

.footer-nav a:hover,
.footer-nav a:focus-visible,
.footer-contact a:hover,
.footer-contact a:focus-visible,
.footer-languages button:hover,
.footer-languages button:focus-visible {
    color: #fff;
    opacity: .72;
}

.footer-bottom {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.20);
}

.footer-copyright {
    grid-column: 1 / span 4;
    margin: 0;
    color: rgba(255, 255, 255, 0.68);
    font-size: .84rem;
}

.footer-languages {
    grid-column: 10 / span 3;
    justify-self: end;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: rgba(255, 255, 255, 0.68);
    font-size: .8rem;
}

.footer-languages button {
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    cursor: pointer;
}

.footer-languages button:hover,
.footer-languages button:focus-visible {
    outline: none;
}

@media (max-width: 900px) {
    .footer-brand {
        grid-column: 1 / span 4;
    }

    .footer-nav {
        grid-column: 5 / span 4;
    }

    .footer-contact,
    .footer-languages {
        grid-column: 9 / span 4;
    }
}

@media (max-width: 640px) {
    .site-footer {
        padding-bottom: 28px;
    }

    .footer-main {
        row-gap: 42px;
        padding: 48px 0 44px;
    }

    .footer-brand,
    .footer-nav,
    .footer-contact {
        grid-column: 1 / -1;
    }

    .footer-bottom {
        row-gap: 18px;
    }

    .footer-copyright,
    .footer-languages {
        grid-column: 1 / -1;
    }

    .footer-languages {
        justify-self: start;
    }
}

/* RESPONSIVE AUDIT FIXES — v1.12.5 */

/* 3. Anchor positions account for sticky Header. */
html {
    scroll-padding-top: 104px;
}

#hero,
#services,
#methodology,
#technologies,
#projects,
#about,
#contact {
    scroll-margin-top: 104px;
}

/* 1. Compact mobile navigation; desktop remains unchanged. */
.mobile-nav-toggle,
.mobile-nav-cta {
    display: none;
}

.mobile-nav-toggle {
    flex: 0 0 auto;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-primary);
    cursor: pointer;
}

.mobile-nav-toggle span {
    display: block;
    width: 100%;
    height: 1px;
    margin: 5px 0;
    background: currentColor;
    transition: transform 160ms ease, opacity 160ms ease;
}

.mobile-nav-toggle.is-open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
}

.mobile-nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 980px) {
    .header-layout {
        position: relative;
        gap: 10px;
    }

    .language-selector {
        margin-left: auto;
    }

    .mobile-nav-toggle {
        display: block;
    }

    .main-navigation {
        display: none;
        position: absolute;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        margin-left: 0;
        padding: 18px 20px 22px;
        border: 1px solid var(--border);
        border-top: 0;
        background: rgba(255, 255, 255, 0.99);
        box-shadow: 0 16px 30px rgba(16, 35, 49, 0.08);
    }

    .main-navigation.is-open {
        display: block;
    }

    .main-navigation .navigation-list {
        display: grid;
        gap: 0;
    }

    .main-navigation .navigation-list a {
        display: flex;
        align-items: center;
        min-height: 44px;
        padding: 8px 0;
        border-bottom: 1px solid var(--border);
    }

    .mobile-nav-cta {
        display: inline-flex;
        margin-top: 18px;
    }
}

@media (max-width: 640px) {
    html {
        scroll-padding-top: 88px;
    }

    #hero,
    #services,
    #methodology,
    #technologies,
    #projects,
    #about,
    #contact {
        scroll-margin-top: 88px;
    }

    .main-navigation {
        padding-inline: 16px;
    }
}

/* 4. Stop viewport-based typography growth after 1440 px. */
@media (min-width: 1441px) {
    h1 {
        font-size: 4.5rem;
    }

    html[lang="ru"] h1 {
        font-size: 3.825rem;
    }

    .services-heading h2,
    .methodology-heading h2,
    .technologies-heading h2,
    .experience-heading h2,
    .about-heading h2,
    .contact-heading h2 {
        font-size: 3.15rem;
    }

    .service-detail-panel-header h3,
    .methodology-detail-panel-header h3,
    .technology-detail-panel-header h3,
    .experience-detail-panel-header h3 {
        font-size: 2.7rem;
    }

    .methodology-step-number {
        font-size: 9rem;
    }

    .about-role-statement p {
        font-size: 2.385rem;
    }

    .about-card-number {
        font-size: 9.9rem;
    }

    .about-final-statement {
        font-size: 3.42rem;
    }
}

/* 5. Larger touch hit areas without increasing visible controls. */
@media (hover: none), (pointer: coarse) {
    .service-panel-trigger,
    .methodology-panel-trigger,
    .technology-panel-trigger,
    .experience-panel-trigger,
    .service-panel-close,
    .methodology-panel-close,
    .technology-panel-close,
    .experience-panel-close,
    .footer-languages button {
        position: relative;
    }

    .service-panel-trigger::before,
    .methodology-panel-trigger::before,
    .technology-panel-trigger::before,
    .experience-panel-trigger::before {
        content: "";
        position: absolute;
        left: -8px;
        right: -8px;
        top: 50%;
        height: 44px;
        transform: translateY(-50%);
    }

    .service-panel-close::before,
    .methodology-panel-close::before,
    .technology-panel-close::before,
    .experience-panel-close::before {
        content: "";
        position: absolute;
        width: 44px;
        height: 44px;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }

    .footer-languages button::before {
        content: "";
        position: absolute;
        left: -2px;
        right: -2px;
        top: 50%;
        height: 44px;
        transform: translateY(-50%);
    }
}


/* =========================================================
   MOTION & INTERACTION POLISH — v2.0-RC2
   ========================================================= */

html {
    scroll-behavior: smooth;
}

/* Restrained interaction transitions */
a,
button,
.button,
.service-card,
.technology-card,
.experience-case,
.language-selector-toggle,
.mobile-nav-toggle,
.contact-submit {
    transition:
        color 160ms ease,
        background-color 160ms ease,
        border-color 160ms ease,
        opacity 160ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

a:focus-visible,
button:focus-visible,
.button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 3px;
}

/* Expandable panels: animation itself is handled by the Web Animations API. */
.service-detail-panel,
.methodology-detail-panel,
.technology-detail-panel,
.experience-detail-panel {
    overflow: clip;
    will-change: opacity, transform;
}

/* Language selector motion */
.language-menu {
    transform-origin: top right;
}

.language-selector.is-open .language-menu {
    animation: dkw-menu-in 170ms ease both;
}

/* Mobile navigation motion */
@media (max-width: 980px) {
    .main-navigation {
        transform-origin: top center;
    }

    .main-navigation.is-open {
        animation: dkw-nav-in 220ms ease both;
    }
}

@keyframes dkw-menu-in {
    from {
        opacity: 0;
        transform: translateY(-6px) scale(.985);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes dkw-nav-in {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Very subtle active interaction feedback */
.service-panel-trigger:hover,
.methodology-panel-trigger:hover,
.technology-panel-trigger:hover,
.experience-panel-trigger:hover,
.footer-languages button:hover {
    opacity: .72;
}

.button:hover,
.contact-submit:hover {
    transform: translateY(-1px);
}

.button:active,
.contact-submit:active,
.mobile-nav-toggle:active,
.language-selector-toggle:active {
    transform: translateY(0);
}

/* Accessibility: honor reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.001ms !important;
        transition-delay: 0ms !important;
    }
}