:root {
    --page: #f5f7f8;
    --paper: #ffffff;
    --ink: #15191d;
    --muted: #66717d;
    --line: #dfe5e8;
    --brand: #0f766e;
    --brand-dark: #0b514c;
    --accent: #f2b705;
    --soft: #eef7f5;
    --danger: #b42318;
    --shadow: 0 18px 45px rgba(18, 28, 38, 0.1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--page);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.55;
}

a {
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
}

.nav {
    max-width: 1180px;
    min-height: 72px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    flex-direction: column;
    min-width: max-content;
    text-decoration: none;
    font-weight: 800;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.brand span {
    font-size: 12px;
    color: var(--muted);
    font-weight: 600;
    letter-spacing: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 18px;
    color: #27313a;
    font-size: 15px;
}

.nav-links a {
    text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
    color: var(--brand);
}

.language-switcher {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
}

.language-switcher a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    padding: 0 9px;
    border-radius: 999px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
    text-decoration: none;
}

.language-switcher a:hover,
.language-switcher a[aria-current="page"] {
    background: var(--brand);
    color: #fff;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 16px;
    border-radius: 6px;
    background: var(--ink);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
}

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

.hero {
    background: var(--paper);
    border-bottom: 1px solid var(--line);
}

.hero-inner {
    max-width: 1180px;
    min-height: 560px;
    margin: 0 auto;
    padding: 72px 24px 48px;
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
    gap: 48px;
    align-items: center;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--brand);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    line-height: 1.08;
    margin: 0;
}

h1 {
    max-width: 760px;
    font-size: clamp(38px, 6vw, 72px);
}

h2 {
    font-size: clamp(30px, 4vw, 46px);
}

h3 {
    font-size: 22px;
}

.lead {
    max-width: 700px;
    margin: 22px 0 0;
    color: #43505b;
    font-size: 19px;
}

.hero-actions,
.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.button {
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 18px;
    border: 0;
    border-radius: 6px;
    background: var(--brand);
    color: #fff;
    font: inherit;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}

.button:hover {
    background: var(--brand-dark);
}

.button.secondary {
    background: #e9eef0;
    color: var(--ink);
}

.button.secondary:hover {
    background: #dce4e7;
}

.button.danger {
    background: var(--danger);
}

.hero-media {
    min-height: 460px;
    border-radius: 8px;
    overflow: hidden;
    background: #dfe5e8;
    box-shadow: var(--shadow);
}

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

.home-hero {
    position: relative;
    min-height: 720px;
    display: grid;
    align-items: end;
    overflow: hidden;
    background: #111820;
    color: #fff;
}

.home-hero-media {
    position: absolute;
    inset: 0;
}

.home-hero-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(9, 16, 22, 0.84), rgba(9, 16, 22, 0.34) 52%, rgba(9, 16, 22, 0.08));
}

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

.home-hero-content {
    position: relative;
    z-index: 1;
    max-width: 1180px;
    width: 100%;
    margin: 0 auto;
    padding: 110px 24px 72px;
}

.home-hero h1 {
    max-width: 860px;
    color: #fff;
}

.home-hero .lead {
    max-width: 710px;
    color: rgba(255, 255, 255, 0.86);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 160px));
    gap: 12px;
    max-width: 620px;
    margin: 34px 0 0;
}

.hero-stats div {
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
}

.hero-stats dt {
    font-size: 24px;
    line-height: 1;
    font-weight: 900;
}

.hero-stats dd {
    margin: 8px 0 0;
    color: rgba(255, 255, 255, 0.78);
    font-size: 14px;
}

.band {
    padding: 72px 0;
}

.band.white {
    background: var(--paper);
}

.section-head {
    max-width: 760px;
    margin-bottom: 32px;
}

.section-head p {
    margin: 16px 0 0;
    color: var(--muted);
    font-size: 18px;
}

.split-head {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.65fr);
    gap: 40px;
    align-items: end;
    margin-bottom: 32px;
}

.split-head > p {
    margin: 0;
    color: var(--muted);
    font-size: 18px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.product-card {
    display: grid;
    grid-template-rows: 260px 1fr;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
    box-shadow: 0 14px 35px rgba(18, 28, 38, 0.08);
}

.product-card.feature-product {
    grid-column: span 1;
}

.product-image {
    display: block;
    min-height: 0;
    background: #dfe5e8;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-body {
    display: grid;
    align-content: start;
    gap: 12px;
    padding: 24px;
}

.product-body p {
    margin: 0;
    color: var(--muted);
}

.text-link {
    width: fit-content;
    color: var(--brand);
    font-weight: 900;
    text-decoration: none;
}

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

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.service-tile {
    position: relative;
    min-height: 240px;
    overflow: hidden;
    border-radius: 8px;
    color: #fff;
    text-decoration: none;
    background: #111820;
}

.service-tile img {
    width: 100%;
    height: 100%;
    position: absolute;
    inset: 0;
    object-fit: cover;
    transition: transform 220ms ease;
}

.service-tile::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(17, 24, 32, 0.08), rgba(17, 24, 32, 0.76));
}

.service-tile span {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 18px;
    z-index: 1;
    font-size: 22px;
    line-height: 1.1;
    font-weight: 900;
}

.service-tile:hover img {
    transform: scale(1.04);
}

.info-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(420px, 1fr);
    gap: 46px;
    align-items: start;
}

.benefit-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.benefit-list article,
.steps article {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
    padding: 22px;
}

.benefit-list p,
.steps p,
.cta-panel p {
    color: var(--muted);
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.steps span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    margin-bottom: 18px;
    border-radius: 50%;
    background: var(--brand);
    color: #fff;
    font-weight: 900;
}

.cta-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
    align-items: center;
    padding-top: 42px;
    padding-bottom: 42px;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 12px;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.tech-card {
    display: grid;
    gap: 10px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
}

.tech-card strong {
    color: var(--muted);
    font-size: 14px;
}

.tech-card span {
    font-size: 24px;
    line-height: 1.1;
    font-weight: 900;
}

.tech-card p {
    margin: 0;
    color: var(--muted);
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.media-card {
    display: grid;
    grid-template-rows: 260px auto;
    overflow: hidden;
    margin: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
}

.media-card.large {
    grid-column: span 2;
}

.media-card img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #f3f6f7;
}

.media-card.large img,
.gallery-strip img {
    object-fit: cover;
}

.media-card figcaption {
    padding: 14px 16px;
    color: var(--muted);
    font-weight: 800;
}

.profile-colors {
    margin: 0 0 18px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
}

.profile-colors img {
    display: block;
    width: 100%;
    height: auto;
    background: #fff;
}

.profile-colors figcaption {
    padding: 12px 16px;
    color: var(--muted);
    font-weight: 700;
}

.color-map-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.color-map-grid img {
    display: block;
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
}

.gallery-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.gallery-strip img {
    width: 100%;
    height: 220px;
    border-radius: 8px;
}

.video-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.72fr) minmax(480px, 1fr);
    gap: 42px;
    align-items: center;
}

.video-layout > * {
    min-width: 0;
}

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

.video-card {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #111820;
    box-shadow: var(--shadow);
}

.video-card video {
    display: block;
    width: 100% !important;
    max-width: 100% !important;
    inline-size: 100%;
    block-size: auto;
    height: auto !important;
    max-height: 560px;
    object-fit: contain;
    background: #111820;
}

.video-card figcaption {
    padding: 14px 16px;
    color: rgba(255, 255, 255, 0.82);
    font-weight: 800;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.feature {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 24px;
}

.feature.media-feature {
    padding: 0;
    overflow: hidden;
}

.feature.media-feature img {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.feature.media-feature h3,
.feature.media-feature p {
    padding-left: 24px;
    padding-right: 24px;
}

.feature.media-feature h3 {
    padding-top: 22px;
}

.feature.media-feature p {
    padding-bottom: 24px;
}

.feature p,
.profile-copy p,
.calculator-note,
.small {
    color: var(--muted);
}

.profile-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
    gap: 34px;
    align-items: start;
}

.profile-copy {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 28px;
}

.spec-list {
    display: grid;
    gap: 12px;
    margin: 26px 0 0;
}

.spec-list div {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}

.spec-list dt {
    color: var(--muted);
}

.spec-list dd {
    margin: 0;
    font-weight: 800;
    text-align: right;
}

.calculator {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.calculator-header {
    padding: 24px;
    background: var(--soft);
    border-bottom: 1px solid var(--line);
}

.calculator-header p {
    margin: 10px 0 0;
    color: var(--muted);
}

.calculator-body {
    padding: 24px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.field.full {
    grid-column: 1 / -1;
}

label,
.label {
    display: block;
    margin-bottom: 6px;
    font-weight: 800;
}

input,
select,
textarea {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid #cbd5dc;
    border-radius: 6px;
    background: #fff;
    color: var(--ink);
    font: inherit;
}

textarea {
    min-height: 100px;
    resize: vertical;
}

.check-row {
    display: grid;
    gap: 10px;
}

.check {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
}

.check input {
    width: auto;
    min-height: auto;
}

.result {
    display: none;
    margin-top: 22px;
    padding: 18px;
    border-radius: 8px;
    background: #f8fafb;
    border: 1px solid var(--line);
}

.price {
    margin: 8px 0;
    font-size: 34px;
    line-height: 1;
    font-weight: 900;
}

.price-table {
    display: grid;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
}

.price-table div {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(180px, auto);
    gap: 24px;
    align-items: center;
    padding: 18px 20px;
    border-bottom: 1px solid var(--line);
}

.price-table div:last-child {
    border-bottom: 0;
}

.price-table span {
    color: var(--muted);
}

.price-table strong {
    text-align: right;
}

.notice {
    margin: 18px 0 0;
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #eef7f5;
    color: var(--text);
    font-weight: 700;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.contact-card {
    display: grid;
    align-content: start;
    gap: 14px;
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
}

.contact-card p {
    margin: 0;
    color: var(--muted);
}

.cart {
    margin-top: 24px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
}

.cart-items {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.cart-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 12px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.cart-item strong {
    display: block;
}

.icon-button {
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: 6px;
    background: #fee4e2;
    color: var(--danger);
    font-weight: 900;
    cursor: pointer;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 16px;
    padding: 16px;
    border-radius: 8px;
    background: var(--ink);
    color: #fff;
    font-weight: 900;
}

.order-form {
    display: none;
    margin-top: 18px;
    padding: 18px;
    border-radius: 8px;
    background: #f8fafb;
    border: 1px solid var(--line);
}

.status {
    margin-top: 12px;
    font-weight: 800;
}

.seo-copy {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    gap: 34px;
    align-items: start;
}

.seo-copy p {
    color: var(--muted);
    font-size: 17px;
    line-height: 1.75;
}

.seo-copy p + p {
    margin-top: 16px;
}

.keyword-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.keyword-list span {
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--ink);
    font-size: 14px;
    font-weight: 800;
    padding: 8px 12px;
}

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

.faq-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 22px;
}

.faq-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.faq-card p {
    color: var(--muted);
    line-height: 1.65;
}

.site-footer {
    background: #111820;
    color: #fff;
    padding: 42px 0;
}

.footer-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 24px;
}

.footer-inner a {
    color: #fff;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

@media (max-width: 900px) {
    .nav {
        align-items: flex-start;
        flex-direction: column;
        padding-top: 16px;
        padding-bottom: 16px;
    }

    .nav-links {
        flex-wrap: wrap;
    }

    .hero-inner,
    .profile-layout,
    .split-head,
    .info-layout,
    .cta-panel,
    .seo-copy,
    .video-grid,
    .video-layout {
        grid-template-columns: 1fr;
    }

    .hero-media {
        min-height: 320px;
    }

    .feature-grid,
    .product-grid,
    .service-grid,
    .contact-grid,
    .faq-grid,
    .steps,
    .tech-grid,
    .media-grid,
    .color-map-grid,
    .gallery-strip {
        grid-template-columns: 1fr;
    }

    .price-table div {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .price-table strong {
        text-align: left;
    }

    .home-hero {
        min-height: 660px;
    }

    .home-hero-content {
        padding-top: 84px;
    }

    .hero-stats,
    .benefit-list {
        grid-template-columns: 1fr;
    }

    .product-card {
        grid-template-rows: 230px 1fr;
    }

    .media-card,
    .media-card.large {
        grid-column: auto;
    }

    .cta-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 620px) {
    .container,
    .hero-inner,
    .nav,
    .footer-inner {
        padding-left: 16px;
        padding-right: 16px;
    }

    .hero-inner {
        padding-top: 44px;
    }

    .form-grid,
    .footer-inner,
    .cart-item {
        grid-template-columns: 1fr;
    }

    .cart-total {
        flex-direction: column;
        gap: 6px;
    }
}