:root {
    --color-background: #090e15;
    --color-surface: #101823;
    --color-surface-elevated: #151f2c;
    --color-text: #f2f5f8;
    --color-text-muted: #a5b1be;
    --color-primary: #78bce4;
    --color-primary-hover: #a7d7f2;
    --color-border: #273544;
    --color-focus: #9bd7f7;
    --font-primary: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --space-xs: 0.375rem;
    --space-sm: 0.75rem;
    --space-md: 1.25rem;
    --space-lg: 2rem;
    --space-xl: 3.5rem;
    --space-2xl: 6rem;
    --container-width: 72rem;
    --content-width: 66ch;
    --header-height: 4.5rem;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-width: 20rem;
    margin: 0;
    overflow-x: hidden;
    background: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.65;
    text-rendering: optimizeLegibility;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

a {
    color: var(--color-primary);
    text-underline-offset: 0.2em;
}

a:hover {
    color: var(--color-primary-hover);
}

a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 3px;
}

.container {
    width: min(calc(100% - clamp(2rem, 6vw, 5rem)), var(--container-width));
    margin-inline: auto;
}

.site-header {
    position: sticky;
    z-index: 10;
    top: 0;
    border-bottom: 1px solid var(--color-border);
    background: rgba(9, 14, 21, 0.96);
}

.header-inner {
    position: relative;
    display: flex;
    min-height: var(--header-height);
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
}

.brand {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text);
    font-size: 0.9375rem;
    font-weight: 650;
    letter-spacing: 0.015em;
    text-decoration: none;
}

.brand:hover {
    color: var(--color-text);
}

.brand-logo {
    width: 2.5rem;
    height: 2.75rem;
    object-fit: contain;
}

.site-nav,
.nav-links {
    display: flex;
    align-items: center;
}

.nav-links {
    gap: clamp(1rem, 2.5vw, 2rem);
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-links a {
    display: inline-flex;
    min-height: 2.75rem;
    align-items: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-weight: 550;
    text-decoration: none;
}

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

.language-switch {
    display: inline-flex;
    min-height: 2.25rem;
    align-items: center;
    gap: var(--space-xs);
    padding-inline: var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: #687787;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.language-switch a {
    min-height: 2.25rem;
    color: var(--color-primary);
    font-size: inherit;
}

.language-switch__current {
    color: var(--color-text);
}

.menu-toggle {
    display: none;
    min-height: 2.75rem;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    font: inherit;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
}

.menu-toggle:hover {
    border-color: #3b5063;
    background: var(--color-surface-elevated);
}

.menu-toggle__icon,
.menu-toggle__icon::before,
.menu-toggle__icon::after {
    display: block;
    width: 1.125rem;
    height: 1px;
    background: currentColor;
}

.menu-toggle__icon {
    position: relative;
}

.menu-toggle__icon::before,
.menu-toggle__icon::after {
    position: absolute;
    left: 0;
    content: "";
}

.menu-toggle__icon::before {
    top: -0.35rem;
}

.menu-toggle__icon::after {
    top: 0.35rem;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon {
    background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon::before {
    top: 0;
    transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon::after {
    top: 0;
    transform: rotate(-45deg);
}

main {
    display: block;
}

.section {
    padding-block: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    scroll-margin-top: calc(var(--header-height) + var(--space-md));
}

.section--hero {
    padding-block: clamp(4.5rem, 10vw, var(--space-2xl));
}

.section--surface {
    background: var(--color-surface);
}

h1,
h2,
h3 {
    margin-top: 0;
    color: var(--color-text);
    letter-spacing: -0.025em;
}

h1 {
    max-width: 19ch;
    margin-bottom: var(--space-md);
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 650;
    line-height: 1.1;
}

h2 {
    margin-bottom: var(--space-sm);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 625;
    line-height: 1.2;
}

h3 {
    margin-bottom: var(--space-sm);
    font-size: clamp(1.0625rem, 2vw, 1.25rem);
    font-weight: 625;
    line-height: 1.35;
}

p {
    max-width: var(--content-width);
    margin-block: 0;
    color: var(--color-text-muted);
}

.section--hero p {
    font-size: clamp(1.0625rem, 2vw, var(--font-size-lg));
}

.eyebrow { margin-bottom: var(--space-sm); color: var(--color-primary); font-size: 0.75rem; font-weight: 750; letter-spacing: 0.12em; line-height: 1.4; text-transform: uppercase; }
.hero-layout { display: grid; width: min(calc(100% - clamp(2rem, 6vw, 5rem)), 90rem); align-items: center; grid-template-columns: minmax(20rem, 0.8fr) minmax(0, 1.4fr); gap: clamp(2.5rem, 5vw, 5rem); }
.hero-content h1 { max-width: 17ch; }
.hero-lead { max-width: 59ch; }
.button-group { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-top: var(--space-lg); }
.hero-visual { overflow: hidden; border: 1px solid #28465f; border-radius: var(--radius-lg); background: #061127; box-shadow: 0 1.5rem 3.5rem rgba(0, 20, 49, 0.24); }
.hero-visual img { display: block; width: 100%; height: auto; }
.section-intro { max-width: 46rem; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.services-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1rem, 2.5vw, 1.75rem); }
.service-card { min-width: 0; padding: clamp(1.5rem, 4vw, 2.25rem); border: 1px solid var(--color-border); background: rgba(9, 14, 21, 0.35); }
.service-card p { font-size: 0.9375rem; }
.product-section { background: linear-gradient(110deg, #09111a 0%, #0d1924 100%); }
.product-panel { display: grid; align-items: center; grid-template-columns: minmax(16rem, 0.8fr) minmax(0, 1.2fr); gap: clamp(2.5rem, 8vw, 7rem); }
.product-visual { width: min(100%, 24rem); overflow: hidden; border: 1px solid #284f6c; border-radius: var(--radius-lg); background: #02091a; box-shadow: 0 1.5rem 3.5rem rgba(0, 20, 49, 0.24); }
.product-visual img { display: block; width: 100%; height: auto; aspect-ratio: 1; }
.product-content h2 { margin-bottom: var(--space-md); font-size: clamp(2rem, 5vw, 3.25rem); }
.product-statement { margin-bottom: var(--space-md); color: var(--color-text); font-size: clamp(1.125rem, 2vw, 1.375rem); }
.product-status { display: inline-block; margin-top: var(--space-lg); padding: 0.45rem 0.75rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm); color: var(--color-text-muted); font-size: 0.75rem; font-weight: 650; letter-spacing: 0.05em; text-transform: uppercase; }
.split-layout { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: var(--space-lg) clamp(3rem, 8vw, 7rem); }
.split-layout .section-intro { grid-row: span 2; margin-bottom: 0; }
.customer-list { margin: 0; padding: 0; border-top: 1px solid var(--color-border); list-style: none; }
.customer-list li { position: relative; padding: 1rem 1rem 1rem 2rem; border-bottom: 1px solid var(--color-border); color: var(--color-text); }
.customer-list li::before { position: absolute; top: 1.55rem; left: 0.25rem; width: 0.375rem; height: 0.375rem; background: var(--color-primary); content: ""; transform: rotate(45deg); }
.cooperation-note { padding-left: var(--space-md); border-left: 2px solid var(--color-primary); font-size: 0.9375rem; }
.about-layout { display: grid; grid-template-columns: minmax(12rem, 0.65fr) minmax(0, 1.35fr); gap: clamp(2rem, 8vw, 7rem); }
.about-copy p + p { margin-top: var(--space-md); }
.about-lead { color: var(--color-text); font-size: clamp(1.125rem, 2vw, 1.375rem); }
.contact-section { padding-block: var(--space-lg); background: var(--color-surface); }
.contact-panel { display: flex; align-items: center; justify-content: space-between; gap: var(--space-xl); padding: clamp(1.75rem, 5vw, 3rem); border: 1px solid #38566d; border-radius: var(--radius-md); background: var(--color-surface-elevated); }
.contact-panel h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
.contact-status { flex: 0 0 auto; color: var(--color-primary); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.contact-status--email { display: inline-flex; min-height: 2.75rem; max-width: 100%; align-items: center; letter-spacing: normal; text-transform: none; overflow-wrap: anywhere; }
.footer-inner { display: flex; justify-content: space-between; gap: var(--space-md); }

.button {
    display: inline-flex;
    min-height: 2.875rem;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1rem;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    color: #071018;
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-decoration: none;
}

.button:hover {
    border-color: var(--color-primary-hover);
    background: var(--color-primary-hover);
    color: #071018;
}

.button--secondary {
    border-color: var(--color-border);
    background: transparent;
    color: var(--color-text);
}

.button--secondary:hover {
    border-color: var(--color-primary);
    background: var(--color-surface-elevated);
    color: var(--color-primary-hover);
}

.site-footer {
    padding-block: var(--space-lg);
    background: #070b10;
}

.site-footer p {
    font-size: var(--font-size-sm);
}

.service-card h3 a { display: inline-block; color: inherit; text-decoration-color: var(--color-primary); }
.service-card h3 a:hover { color: var(--color-primary-hover); }
.service-card h3, .service-detail h1 { overflow-wrap: anywhere; }
.service-detail__content { max-width: 52rem; }
.service-detail h1 { max-width: none; font-size: clamp(2rem, 4vw, 3.25rem); }
.service-detail__lead { margin-bottom: var(--space-xl); color: var(--color-text); font-size: var(--font-size-lg); }
.service-detail__overview p + p { margin-top: var(--space-md); }

@media (max-width: 64rem) {
    .services-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 48rem) {
    :root {
        --header-height: 4.25rem;
    }

    .header-inner {
        gap: var(--space-md);
    }

    .js .menu-toggle {
        display: inline-flex;
    }

    .js .site-nav {
        position: absolute;
        top: calc(100% + 1px);
        right: 0;
        left: 0;
        display: none;
        padding: var(--space-sm) clamp(1rem, 6vw, 2.5rem) var(--space-md);
        border-bottom: 1px solid var(--color-border);
        background: var(--color-background);
    }

    .js .site-nav[data-open="true"] {
        display: block;
    }

    .nav-links {
        width: 100%;
        align-items: stretch;
        flex-direction: column;
        gap: 0;
    }

    .nav-links a {
        min-height: 3rem;
    }

    .language-switch {
        align-self: flex-start;
        margin-top: var(--space-sm);
    }

    .language-switch a {
        min-height: 2.25rem;
    }

    .section {
        padding-block: var(--space-lg);
    }

    .section--hero {
        padding-block: var(--space-xl);
    }

    .hero-layout, .product-panel, .split-layout, .about-layout { grid-template-columns: 1fr; gap: var(--space-xl); }
    .services-grid { grid-template-columns: 1fr; }
    .service-card { min-height: 0; }
    .split-layout .section-intro { grid-row: auto; margin-bottom: 0; }
    .product-visual { width: min(80vw, 22rem); }
    .contact-panel, .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 30rem) {
    .button-group, .button-group .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}