:root {
    --in-steel: #1c2430;
    --in-blue: #1e5a8a;
    --in-blue-dark: #164a72;
    --in-amber: #f59e0b;
    --in-mint: #7ec8b8;
    --in-bg: #ffffff;
    --in-gray: #eceff3;
    --in-gray-text: #6b7280;
    --in-ink: #111827;
    --in-white: #ffffff;
    --in-font: "DM Sans", "SUIT", system-ui, sans-serif;
    --in-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body.in-site {
    margin: 0;
    font-family: var(--in-font);
    color: var(--in-ink);
    background: var(--in-bg);
    -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; border: 0; background: none; cursor: pointer; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.in-container {
    width: min(1180px, 92vw);
    margin: 0 auto;
}

/* Buttons */
.in-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.5rem;
    border-radius: 999px;
    font-size: 0.88rem;
    font-weight: 600;
    transition: transform 0.25s var(--in-ease), background 0.25s, color 0.25s;
}

.in-btn:hover { transform: translateY(-1px); }

.in-btn--primary {
    background: var(--in-steel);
    color: var(--in-white);
}

.in-btn--primary:hover { background: var(--in-blue-dark); }

.in-btn--outline {
    border: 1px solid var(--in-ink);
    color: var(--in-ink);
}

.in-btn--outline:hover {
    background: var(--in-ink);
    color: var(--in-white);
}

.in-btn--sm { padding: 0.6rem 1.1rem; font-size: 0.82rem; }
.in-btn--block { width: 100%; }

.in-link {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--in-blue);
}

.in-link:hover { opacity: 0.75; }

/* Header */
.in-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 100;
    padding: 1.25rem 0;
    background: var(--in-white);
    border-bottom: 1px solid transparent;
    transition: background 0.35s, border-color 0.35s, box-shadow 0.35s;
}

.in-header--transparent {
    background: transparent;
    color: var(--in-white);
}

.in-header--transparent .in-nav a { color: rgba(255,255,255,0.85); }
.in-header--transparent .in-nav a.is-active,
.in-header--transparent .in-nav a:hover { color: var(--in-white); }

.in-header--transparent .in-btn--primary {
    background: var(--in-white);
    color: var(--in-steel);
}

.in-header--transparent.is-scrolled,
.in-site--sub .in-header {
    background: rgba(255,255,255,0.97);
    color: var(--in-ink);
    border-color: rgba(0,0,0,0.06);
    box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}

.in-header--transparent.is-scrolled .in-nav a { color: var(--in-gray-text); }
.in-header--transparent.is-scrolled .in-nav a.is-active,
.in-header--transparent.is-scrolled .in-nav a:hover { color: var(--in-ink); }

.in-header--transparent.is-scrolled .in-btn--primary {
    background: var(--in-steel);
    color: var(--in-white);
}

.in-header__inner {
    width: min(1180px, 92vw);
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1.5rem;
}

.in-logo {
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.08em;
}

.in-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.in-nav a {
    font-size: 0.84rem;
    font-weight: 500;
    color: var(--in-gray-text);
    transition: color 0.2s;
}

.in-nav a.is-active,
.in-nav a:hover { color: var(--in-ink); }

.in-header__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.in-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.in-nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: currentColor;
}

/* Hero */
.in-hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: flex-end;
    padding-bottom: 4rem;
}

.in-hero__bg {
    position: absolute;
    inset: 0;
}

.in-hero__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.in-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0.55) 100%);
}

.in-hero__logo {
    position: relative;
    z-index: 1;
}

.in-hero__logo h1 {
    margin: 0;
    font-size: clamp(3rem, 12vw, 8rem);
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--in-white);
    line-height: 0.95;
}

/* Intro */
.in-intro {
    padding: 6rem 0;
}

.in-intro__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.in-intro h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.in-intro p {
    margin: 0 0 1.5rem;
    font-size: 1rem;
    line-height: 1.75;
    color: var(--in-gray-text);
}

/* Feature image */
.in-feature-img img {
    width: 100%;
    max-height: 70vh;
    object-fit: cover;
}

/* Stats */
.in-stats {
    padding: 5rem 0;
    background: var(--in-gray);
}

.in-stats__list li {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    align-items: baseline;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.in-stats__list li:last-child { border-bottom: 0; }

.in-stats__list strong {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    line-height: 1;
    color: var(--in-steel);
}

.in-stats__list strong em {
    font-style: normal;
    font-size: 0.45em;
    margin-left: 0.15em;
}

.in-stats__list span {
    font-size: 1rem;
    color: var(--in-gray-text);
}

.in-stats__list--inline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.in-stats__list--inline li {
    display: block;
    border: 0;
    padding: 0;
    text-align: center;
}

.in-stats__list--inline span { display: block; margin-top: 0.5rem; }

/* Sustainability */
.in-sustain {
    position: relative;
    min-height: 480px;
    display: flex;
    align-items: center;
}

.in-sustain__bg {
    position: absolute;
    inset: 0;
}

.in-sustain__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.in-sustain__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.45);
}

.in-sustain__copy {
    position: relative;
    z-index: 1;
    color: var(--in-white);
    max-width: 560px;
}

.in-sustain__copy h2 {
    margin: 0 0 1rem;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 700;
}

.in-sustain__copy p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.7;
    opacity: 0.9;
}

/* Services */
.in-services {
    padding: 6rem 0;
}

.in-services__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    align-items: start;
}

.in-services__grid h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    line-height: 1.2;
}

.in-services__grid ul li {
    padding: 1.25rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.in-services__grid ul li strong {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 1.05rem;
}

.in-services__grid ul li span {
    font-size: 0.88rem;
    color: var(--in-gray-text);
}

.in-services__grid .in-link {
    grid-column: 2;
    margin-top: 1rem;
}

.in-services__grid--sub .in-link { display: none; }

/* Locations */
.in-locations {
    padding: 5rem 0;
    background: var(--in-blue);
    color: var(--in-white);
}

.in-locations h2 {
    margin: 0 0 2rem;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}

.in-locations__cities {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 2.5rem;
    margin-bottom: 2.5rem;
}

.in-locations__cities span {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    font-weight: 600;
}

.in-locations__cta {
    display: inline-block;
    padding: 1rem 0;
    border-top: 1px solid rgba(255,255,255,0.3);
    width: 100%;
    font-size: 1rem;
    font-weight: 600;
    transition: opacity 0.2s;
}

.in-locations__cta:hover { opacity: 0.8; }

.in-locations--sub .in-locations__cta { display: none; }

/* Vision */
.in-vision {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.in-vision__bg {
    position: absolute;
    inset: 0;
}

.in-vision__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.in-vision__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.7);
}

.in-vision h2 {
    position: relative;
    z-index: 1;
    margin: 0;
    max-width: 720px;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--in-white);
    line-height: 1.3;
}

/* Team */
.in-team {
    padding: 6rem 0;
    background: var(--in-gray);
}

.in-section-title {
    margin: 0 0 0.5rem;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 700;
}

.in-section-desc {
    margin: 0 0 3rem;
    color: var(--in-gray-text);
}

.in-team__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem 1.5rem;
}

.in-team-card img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    margin-bottom: 1rem;
}

.in-team-card strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.in-team-card span {
    font-size: 0.82rem;
    color: var(--in-gray-text);
}

/* News */
.in-news {
    padding: 6rem 0;
}

.in-news__item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    align-items: start;
    transition: opacity 0.2s;
}

.in-news__item:hover { opacity: 0.7; }

.in-news__item img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}

.in-news__cat {
    display: inline-block;
    margin-bottom: 0.5rem;
    padding: 0.25rem 0.65rem;
    background: var(--in-mint);
    color: var(--in-steel);
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 700;
}

.in-news__item time {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.78rem;
    color: var(--in-gray-text);
}

.in-news__item h3 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.45;
}

.in-download-note {
    margin-top: 2rem;
    text-align: center;
}

/* Projects */
.in-projects {
    padding: 6rem 0;
    background: var(--in-gray);
}

.in-projects__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.in-project-card {
    display: block;
    background: var(--in-white);
    transition: transform 0.3s var(--in-ease);
}

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

.in-project-card img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.in-project-card div {
    padding: 1.25rem 0;
}

.in-project-card h3 {
    margin: 0 0 0.35rem;
    font-size: 1.05rem;
    font-weight: 600;
}

.in-project-card span {
    font-size: 0.82rem;
    color: var(--in-gray-text);
}

.in-project-card em {
    display: inline-block;
    margin-top: 0.5rem;
    font-style: normal;
    font-weight: 600;
}

.in-project-card--static:hover { transform: none; }

/* Footer */
.in-footer {
    position: relative;
    min-height: 420px;
    color: var(--in-white);
}

.in-footer__visual {
    position: absolute;
    inset: 0;
}

.in-footer__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.in-footer__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.85) 100%);
}

.in-footer__content {
    position: relative;
    z-index: 1;
    padding: 6rem 0 2rem;
}

.in-footer__logo {
    display: block;
    margin-bottom: 3rem;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: 0.06em;
}

.in-footer__cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.in-footer__cols h3 {
    margin: 0 0 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    opacity: 0.7;
}

.in-footer__cols li { margin-bottom: 0.5rem; }

.in-footer__cols a,
.in-footer__cols span {
    font-size: 0.85rem;
    opacity: 0.85;
}

.in-footer__cols a:hover { opacity: 1; }

.in-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 2rem;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.15);
    font-size: 0.78rem;
    opacity: 0.75;
}

.in-footer__bottom p { margin: 0; }

.in-footer__note { flex: 1; min-width: 200px; }

.in-footer__bottom a {
    margin-left: auto;
    color: var(--in-white);
    font-weight: 600;
    opacity: 1;
}

/* Sub pages */
.in-sub-hero {
    padding: 8rem 0 3rem;
    background: var(--in-gray);
}

.in-sub-hero__kicker {
    margin: 0 0 0.5rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--in-blue);
}

.in-sub-hero h1 {
    margin: 0 0 0.75rem;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}

.in-sub-hero p {
    margin: 0;
    font-size: 1rem;
    color: var(--in-gray-text);
    max-width: 560px;
    line-height: 1.6;
}

.in-sub-main {
    padding: 4rem 0;
}

.in-sub-main--gray { background: var(--in-gray); }

.in-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.in-values h2 {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--in-blue);
}

.in-values p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--in-gray-text);
    line-height: 1.65;
}

.in-timeline li {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 2rem;
    padding: 1.25rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.in-timeline li span {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--in-amber);
}

.in-timeline li strong {
    display: block;
    margin-bottom: 0.35rem;
}

.in-timeline li p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--in-gray-text);
}

.in-cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.in-cert-card {
    padding: 1.5rem;
    background: var(--in-gray);
    border-radius: 8px;
}

.in-cert-card h3 {
    margin: 0 0 0.35rem;
    font-size: 1rem;
    font-weight: 700;
}

.in-cert-card p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--in-gray-text);
}

.in-sector-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.in-sector-card img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    margin-bottom: 1rem;
}

.in-sector-card h2 {
    margin: 0 0 0.35rem;
    font-size: 1.25rem;
}

.in-sector-card p {
    margin: 0;
    color: var(--in-gray-text);
}

.in-patent-list li {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.in-patent-list span {
    font-size: 0.82rem;
    color: var(--in-gray-text);
    white-space: nowrap;
}

.in-clients {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem 2.5rem;
}

.in-clients span {
    font-size: 1rem;
    font-weight: 600;
    color: var(--in-gray-text);
    opacity: 0.8;
}

.in-contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: start;
}

.in-form-field {
    margin-bottom: 1.25rem;
}

.in-form-field label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.82rem;
    font-weight: 600;
}

.in-form-field input,
.in-form-field select,
.in-form-field textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid rgba(0,0,0,0.12);
    border-radius: 8px;
    font: inherit;
    background: var(--in-white);
}

.in-form-note {
    margin: 1rem 0 0;
    font-size: 0.75rem;
    color: var(--in-gray-text);
}

.in-contact-aside h2 {
    margin: 0 0 1.5rem;
    font-size: 1.15rem;
}

.in-regions li {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.in-regions strong {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--in-blue);
}

.in-regions span {
    display: block;
    margin: 0.25rem 0;
    font-weight: 600;
}

.in-regions a {
    display: block;
    font-size: 0.85rem;
    color: var(--in-gray-text);
}

.in-contact-aside > p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--in-gray-text);
    line-height: 1.65;
}

/* Responsive */
@media (max-width: 960px) {
    .in-intro__grid,
    .in-services__grid,
    .in-team__grid,
    .in-projects__grid,
    .in-values,
    .in-cert-grid,
    .in-sector-grid,
    .in-contact-grid,
    .in-footer__cols,
    .in-stats__list li,
    .in-news__item {
        grid-template-columns: 1fr;
    }

    .in-stats__list--inline { grid-template-columns: 1fr; }

    .in-services__grid .in-link { grid-column: auto; }
}

@media (max-width: 768px) {
    .in-nav {
        position: fixed;
        inset: 0 0 auto;
        top: 64px;
        flex-direction: column;
        background: var(--in-white);
        padding: 1.5rem;
        gap: 0.5rem;
        transform: translateY(-120%);
        opacity: 0;
        transition: transform 0.3s, opacity 0.3s;
        box-shadow: 0 12px 40px rgba(0,0,0,0.1);
    }

    .in-nav.is-open {
        transform: translateY(0);
        opacity: 1;
    }

    .in-nav-toggle { display: flex; }

    .in-team__grid { grid-template-columns: repeat(2, 1fr); }
}