.nav-links a[aria-current="page"] {
    background: var(--surface-blue);
    color: var(--brand-dark);
}

.nav-banner a[aria-current="page"],
.footer-links a[aria-current="page"] {
    color: #72d0e4;
}

#welcome,
#solutions,
#ready-made-solutions,
#custom-built-solutions,
[data-service-section] {
    scroll-margin-top: calc(var(--header-height) + 28px);
}

.services-hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: clamp(76px, 9vw, 116px) 0 clamp(72px, 8vw, 104px);
    background:
        radial-gradient(circle at 5% 10%, rgba(71, 189, 216, 0.2), transparent 27%),
        radial-gradient(circle at 94% 88%, rgba(8, 127, 174, 0.13), transparent 27%),
        linear-gradient(135deg, #f8fbfd 0%, #ffffff 55%, #edf7fa 100%);
}

.services-hero::before {
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(rgba(8, 127, 174, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(8, 127, 174, 0.045) 1px, transparent 1px);
    background-size: 44px 44px;
    content: "";
    mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.services-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.03fr) minmax(430px, 0.97fr);
    align-items: center;
    gap: clamp(54px, 8vw, 102px);
}

.services-hero h1 {
    max-width: 750px;
    margin: 0;
    color: var(--ink-950);
    font-size: clamp(3rem, 5.15vw, 4.9rem);
    font-weight: 760;
    letter-spacing: -0.06em;
    line-height: 1;
}

.services-hero-lead {
    max-width: 680px;
    margin: 28px 0 0;
    color: var(--slate-600);
    font-size: clamp(1.06rem, 1.5vw, 1.2rem);
    line-height: 1.75;
}

.systems-visual {
    position: relative;
    min-height: 535px;
    padding: 29px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 26px;
    background:
        radial-gradient(circle at 100% 0%, rgba(71, 189, 216, 0.22), transparent 36%),
        linear-gradient(145deg, var(--ink-950), #102e48);
    box-shadow: var(--shadow-lg);
    color: #ffffff;
}

.systems-visual::before {
    position: absolute;
    right: -120px;
    bottom: -150px;
    width: 390px;
    height: 390px;
    border: 70px solid rgba(71, 189, 216, 0.07);
    border-radius: 50%;
    content: "";
}

.systems-toolbar,
.systems-footer {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    color: #adc3d1;
    font-size: 0.76rem;
    font-weight: 760;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.systems-toolbar {
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.11);
}

.systems-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #dce9ef;
}

.systems-status i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #55dda8;
    box-shadow: 0 0 0 4px rgba(85, 221, 168, 0.14);
}

.systems-heading {
    position: relative;
    z-index: 1;
    padding: 32px 2px 24px;
}

.systems-heading p {
    margin: 0 0 6px;
    color: #72d0e4;
    font-size: 0.76rem;
    font-weight: 820;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.systems-heading h2 {
    max-width: 390px;
    margin: 0;
    color: #ffffff;
    font-size: clamp(1.55rem, 2.6vw, 2.15rem);
    letter-spacing: -0.04em;
    line-height: 1.14;
}

.systems-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.system-module {
    display: grid;
    min-height: 102px;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 13px;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 13px;
    background: rgba(255, 255, 255, 0.055);
}

.module-code {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border: 1px solid rgba(114, 208, 228, 0.25);
    border-radius: 9px;
    background: rgba(8, 127, 174, 0.18);
    color: #82d8e9;
    font-size: 0.74rem;
    font-weight: 820;
}

.system-module strong,
.system-module div > span {
    display: block;
}

.system-module strong {
    color: #ffffff;
    font-size: 0.96rem;
}

.system-module div > span {
    margin-top: 2px;
    color: #9fb5c4;
    font-size: 0.76rem;
    line-height: 1.35;
}

.systems-footer {
    margin-top: 20px;
    padding: 16px 2px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.11);
    color: #c5d6df;
    letter-spacing: 0.04em;
    text-transform: none;
}

.systems-pulse {
    width: 34px;
    height: 8px;
    border-radius: 99px;
    background: linear-gradient(90deg, #47bdd8 0 24%, rgba(71, 189, 216, 0.18) 24% 48%, #47bdd8 48% 72%, rgba(71, 189, 216, 0.18) 72%);
}

.services-intro {
    background: #ffffff;
}

.delivery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.delivery-card {
    position: relative;
    display: flex;
    min-height: 350px;
    flex-direction: column;
    padding: clamp(30px, 4vw, 42px);
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface-soft);
    color: inherit;
    text-decoration: none;
    transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

.delivery-card::after {
    position: absolute;
    right: -62px;
    bottom: -82px;
    width: 220px;
    height: 220px;
    border: 38px solid rgba(8, 127, 174, 0.055);
    border-radius: 50%;
    content: "";
}

.delivery-card:hover {
    border-color: #aac9d7;
    box-shadow: var(--shadow-sm);
    transform: translateY(-4px);
}

.delivery-number {
    display: grid;
    width: 46px;
    height: 46px;
    place-items: center;
    border-radius: 11px;
    background: var(--surface-blue);
    color: var(--brand-dark);
    font-size: 0.8rem;
    font-weight: 850;
}

.delivery-card > div {
    position: relative;
    z-index: 1;
    margin-top: 34px;
}

.delivery-label {
    margin: 0;
    color: var(--brand-dark);
    font-size: 0.76rem;
    font-weight: 850;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.delivery-card h3 {
    margin: 8px 0 10px;
    color: var(--ink-900);
    font-size: clamp(1.45rem, 2.4vw, 1.85rem);
    letter-spacing: -0.04em;
    line-height: 1.2;
}

.delivery-card p:last-child {
    max-width: 520px;
    margin: 0;
    color: var(--slate-600);
    font-size: 0.98rem;
    line-height: 1.65;
}

.delivery-link {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
    margin-top: auto;
    padding-top: 26px;
    color: var(--brand-dark);
    font-size: 0.88rem;
    font-weight: 820;
}

.delivery-card[aria-current="location"] {
    border-color: rgba(255, 255, 255, 0.08);
    background: linear-gradient(145deg, var(--ink-950), var(--ink-800));
    color: #ffffff;
}

.delivery-card[aria-current="location"]::after {
    border-color: rgba(71, 189, 216, 0.07);
}

.delivery-card[aria-current="location"] .delivery-number {
    border: 1px solid rgba(130, 216, 233, 0.25);
    background: rgba(8, 127, 174, 0.2);
    color: #82d8e9;
}

.delivery-card[aria-current="location"] .delivery-label,
.delivery-card[aria-current="location"] .delivery-link {
    color: #82d8e9;
}

.delivery-card[aria-current="location"] h3 {
    color: #ffffff;
}

.delivery-card[aria-current="location"] p:last-child {
    color: #aec1ce;
}

.catalog-section {
    padding: clamp(82px, 10vw, 128px) 0;
    border-top: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(244, 248, 251, 0.92), rgba(255, 255, 255, 0.98) 38%),
        #ffffff;
}

.catalog-layout {
    display: grid;
    grid-template-columns: 272px minmax(0, 1fr);
    align-items: start;
    gap: clamp(38px, 5.5vw, 72px);
}

.catalog-rail {
    min-width: 0;
}

.sidebar-toggle {
    display: none;
}

.service-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 24px);
    max-height: calc(100vh - var(--header-height) - 48px);
    padding: 24px;
    overflow-y: auto;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.97);
    box-shadow: var(--shadow-sm);
}

.service-sidebar-heading {
    padding: 2px 2px 18px;
    border-bottom: 1px solid var(--line);
}

.service-sidebar-heading p {
    margin: 0;
    color: var(--brand-dark);
    font-size: 0.74rem;
    font-weight: 850;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.service-sidebar-heading h2 {
    margin: 4px 0 0;
    color: var(--ink-900);
    font-size: 1.24rem;
    letter-spacing: -0.03em;
}

.service-nav-group {
    border-bottom: 1px solid var(--line);
}

.category {
    display: flex;
    width: 100%;
    min-height: 52px;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 2px;
    border: 0;
    background: transparent;
    color: var(--ink-900);
    cursor: pointer;
    font: inherit;
    font-size: 0.88rem;
    font-weight: 790;
    text-align: left;
}

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

.category:focus-visible,
.sidebar-toggle:focus-visible {
    outline: 3px solid rgba(8, 127, 174, 0.3);
    outline-offset: 3px;
}

.category-chevron {
    width: 8px;
    height: 8px;
    flex: 0 0 auto;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translate(-2px, -2px);
    transition: transform 180ms ease;
}

.category[aria-expanded="true"] .category-chevron {
    transform: rotate(225deg) translate(-1px, -1px);
}

.subcategory {
    display: grid;
    max-height: 0;
    gap: 2px;
    overflow: hidden;
    opacity: 0;
    transition: max-height 240ms ease, opacity 180ms ease, padding 240ms ease;
}

.subcategory.open {
    max-height: 440px;
    padding: 0 0 13px;
    opacity: 1;
}

.subcategory a {
    position: relative;
    display: block;
    min-height: 42px;
    padding: 8px 9px 8px 17px;
    border-radius: 8px;
    color: var(--slate-600);
    font-size: 0.84rem;
    font-weight: 650;
    line-height: 1.45;
    text-decoration: none;
    transition: background-color 160ms ease, color 160ms ease;
}

.subcategory a::before {
    position: absolute;
    top: 50%;
    left: 5px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #c7d5df;
    content: "";
    transform: translateY(-50%);
}

.subcategory a:hover {
    background: var(--surface-soft);
    color: var(--ink-900);
}

.subcategory a.active,
.subcategory a[aria-current="location"] {
    background: var(--surface-blue);
    color: var(--brand-dark);
}

.subcategory a.active::before,
.subcategory a[aria-current="location"]::before {
    background: var(--brand);
    box-shadow: 0 0 0 3px rgba(8, 127, 174, 0.12);
}

.sidebar-assist {
    display: grid;
    gap: 4px;
    margin-top: 16px;
    padding: 14px;
    border-radius: 10px;
    background: var(--ink-950);
}

.sidebar-assist > span {
    color: #9fb5c4;
    font-size: 0.74rem;
}

.sidebar-assist a {
    color: #ffffff;
    font-size: 0.84rem;
    font-weight: 780;
    text-decoration: none;
}

.sidebar-assist a:hover {
    color: #82d8e9;
}

.service-content {
    min-width: 0;
}

.service-group + .service-group {
    margin-top: clamp(84px, 10vw, 122px);
    padding-top: clamp(76px, 8vw, 102px);
    border-top: 1px solid var(--line);
}

.service-group-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(250px, 0.48fr);
    align-items: end;
    gap: 34px;
    margin-bottom: 34px;
}

.service-group-heading h2 {
    max-width: 670px;
    margin: 0;
    color: var(--ink-950);
    font-size: clamp(2rem, 3.55vw, 3.15rem);
    font-weight: 740;
    letter-spacing: -0.05em;
    line-height: 1.08;
}

.service-group-heading > p {
    margin: 0;
    color: var(--slate-600);
    font-size: 0.98rem;
    line-height: 1.7;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.service-card {
    position: relative;
    display: flex;
    min-height: 405px;
    flex-direction: column;
    padding: 30px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 10px 30px rgba(11, 31, 51, 0.035);
    transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

.service-card::before {
    position: absolute;
    top: 0;
    left: 27px;
    width: 46px;
    height: 3px;
    border-radius: 0 0 99px 99px;
    background: var(--brand);
    content: "";
}

.service-card::after {
    position: absolute;
    right: -58px;
    bottom: -76px;
    width: 180px;
    height: 180px;
    border: 28px solid rgba(8, 127, 174, 0.04);
    border-radius: 50%;
    content: "";
}

.service-card:hover,
.service-card.is-current,
.service-card:target {
    z-index: 1;
    border-color: #a9cad8;
    box-shadow: var(--shadow-sm);
}

.service-card:hover {
    transform: translateY(-4px);
}

.service-card-wide {
    min-height: 350px;
    grid-column: 1 / -1;
}

.service-card-top {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.service-index {
    color: var(--brand-dark);
    font-size: 0.79rem;
    font-weight: 850;
    letter-spacing: 0.08em;
}

.service-kind {
    padding: 6px 9px;
    border-radius: 999px;
    background: var(--surface-soft);
    color: var(--slate-600);
    font-size: 0.71rem;
    font-weight: 780;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.service-card-body {
    position: relative;
    z-index: 1;
    margin-top: 38px;
}

.service-card h3 {
    margin: 0;
    color: var(--ink-900);
    font-size: 1.36rem;
    letter-spacing: -0.03em;
    line-height: 1.23;
}

.service-statement {
    margin: 12px 0 8px;
    color: var(--ink-800);
    font-size: 1.02rem;
    font-weight: 690;
    line-height: 1.45;
}

.service-card-body > p:last-child {
    margin: 0;
    color: var(--slate-600);
    font-size: 0.95rem;
    line-height: 1.68;
}

.capability-list {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin: auto 0 0;
    padding: 28px 0 0;
    list-style: none;
}

.capability-list li {
    padding: 7px 10px;
    border: 1px solid #dce8ee;
    border-radius: 7px;
    background: #f6fafc;
    color: var(--slate-700);
    font-size: 0.76rem;
    font-weight: 700;
}

.services-cta {
    padding-top: clamp(82px, 10vw, 128px);
}

@media (max-width: 1020px) {
    #welcome,
    #solutions,
    #ready-made-solutions,
    #custom-built-solutions,
    [data-service-section] {
        scroll-margin-top: calc(var(--header-height) + 82px);
    }

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

    .services-hero-copy {
        max-width: 790px;
    }

    .systems-visual {
        width: min(100%, 760px);
        min-height: 490px;
    }

    .catalog-layout {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .catalog-rail {
        position: sticky;
        top: calc(var(--header-height) + 10px);
        z-index: 90;
    }

    .sidebar-toggle {
        display: flex;
        width: 100%;
        min-height: 52px;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
        padding: 12px 17px;
        border: 1px solid var(--line);
        border-radius: 11px;
        background: rgba(255, 255, 255, 0.97);
        box-shadow: var(--shadow-sm);
        color: var(--ink-900);
        cursor: pointer;
        font: inherit;
        font-size: 0.88rem;
        font-weight: 780;
        backdrop-filter: blur(12px);
    }

    .sidebar-toggle-icon {
        position: relative;
        width: 18px;
        height: 14px;
        border-top: 2px solid currentColor;
        border-bottom: 2px solid currentColor;
    }

    .sidebar-toggle-icon::after {
        position: absolute;
        top: 4px;
        left: 0;
        width: 18px;
        border-top: 2px solid currentColor;
        content: "";
    }

    .sidebar-toggle[aria-expanded="true"] .sidebar-toggle-icon {
        border-color: transparent;
        transform: rotate(45deg);
    }

    .sidebar-toggle[aria-expanded="true"] .sidebar-toggle-icon::before,
    .sidebar-toggle[aria-expanded="true"] .sidebar-toggle-icon::after {
        position: absolute;
        top: 5px;
        left: 0;
        width: 18px;
        border-top: 2px solid currentColor;
        content: "";
    }

    .sidebar-toggle[aria-expanded="true"] .sidebar-toggle-icon::before {
        transform: rotate(90deg);
    }

    .service-sidebar {
        position: absolute;
        top: calc(100% + 8px);
        right: 0;
        left: 0;
        max-height: 0;
        padding: 0 20px;
        overflow: hidden;
        border-color: transparent;
        box-shadow: none;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-8px);
        visibility: hidden;
        transition:
            max-height 240ms ease,
            padding 240ms ease,
            opacity 180ms ease,
            transform 180ms ease,
            visibility 0s linear 240ms;
    }

    .service-sidebar.open {
        max-height: calc(100vh - var(--header-height) - 92px);
        padding: 20px;
        overflow-y: auto;
        border-color: var(--line);
        background: #ffffff;
        box-shadow: var(--shadow-sm);
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
        visibility: visible;
        transition-delay: 0s;
    }
}

@media (max-width: 720px) {
    .services-hero {
        padding-top: 64px;
    }

    .services-hero-grid {
        gap: 46px;
    }

    .services-hero h1 {
        font-size: clamp(2.65rem, 13vw, 4rem);
        letter-spacing: -0.055em;
    }

    .systems-visual {
        min-height: 470px;
        padding: 22px;
        border-radius: 20px;
    }

    .delivery-grid,
    .service-grid,
    .service-group-heading {
        grid-template-columns: 1fr;
    }

    .delivery-card {
        min-height: 305px;
    }

    .service-group-heading {
        gap: 18px;
    }

    .service-card,
    .service-card-wide {
        min-height: 365px;
        grid-column: auto;
    }
}

@media (max-width: 480px) {
    .systems-visual {
        min-height: 485px;
        padding: 18px;
    }

    .systems-toolbar {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }

    .systems-heading {
        padding-block: 25px 20px;
    }

    .system-module {
        min-height: 90px;
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 13px;
    }

    .module-code {
        width: 30px;
        height: 30px;
    }

    .systems-footer {
        align-items: flex-start;
    }

    .delivery-card,
    .service-card {
        padding: 24px;
    }

    .service-card::before {
        left: 24px;
    }

    .service-card-top {
        align-items: flex-start;
    }

    .service-kind {
        text-align: right;
    }
}