:root {
    --bg: #0d0d0d;
    --bg-soft: #151515;
    --panel: #1d1d1d;
    --panel-2: #242424;
    --line: rgba(255, 255, 255, 0.09);
    --text: #f5f1ec;
    --muted: #c8beb4;
    --muted-2: #9e948b;
    --accent: #b59a82;
    --accent-2: #d2bca8;
    --accent-dark: #8f7763;
    --white: #ffffff;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 16px;
    --container: 1400px;
    --header-h: 84px;
    --grid-gap: clamp(18px, 2vw, 28px);
}

* {
    box-sizing: border-box;
}

[id] {
  scroll-margin-top: 85px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "PT Sans", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 15% 15%, rgba(181, 154, 130, 0.16), transparent 30%),
        radial-gradient(circle at 85% 10%, rgba(181, 154, 130, 0.12), transparent 24%),
        linear-gradient(180deg, #101010 0%, #0a0a0a 100%);
    line-height: 1.6;
}

body.menu-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button,
input,
textarea {
    font: inherit;
}

.container {
    width: min(var(--container), calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(18px);
    background: rgba(10, 10, 10, 0.78);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
    min-height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.brand-logo {
    width: 150px;
    object-fit: contain;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    flex-shrink: 0;
}

.brand-title {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.brand-subtitle {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.82);
    font-weight: 500;
    font-size: 0.97rem;
    transition: color .25s ease, opacity .25s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--accent-2);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.menu-toggle {
    display: none;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.03);
    color: var(--white);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    width: 18px;
    height: 2px;
    background: var(--white);
    border-radius: 999px;
    transition: transform .3s ease, opacity .3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.btn,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 22px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
    cursor: pointer;
    text-align: center;
}

.btn {
    background: linear-gradient(135deg, var(--accent-2), var(--accent));
    color: #15120f;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 40px rgba(181, 154, 130, 0.28);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.11);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    border-color: rgba(181, 154, 130, 0.45);
}

.hero {
    position: relative;
    overflow: hidden;
    padding-top: 30px;
    padding-bottom: 50px;
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.65;
    pointer-events: none;
}

.hero::before {
    width: 260px;
    height: 260px;
    top: 40px;
    right: -60px;
    background: rgba(181, 154, 130, 0.18);
}

.hero::after {
    width: 320px;
    height: 320px;
    left: -100px;
    bottom: -120px;
    background: rgba(181, 154, 130, 0.12);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
    gap: clamp(28px, 4vw, 56px);
    padding: 40px 0 20px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid rgba(181, 154, 130, 0.25);
    background: rgba(181, 154, 130, 0.08);
    color: var(--accent-2);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 14px 0 0 currentColor, 28px 0 0 currentColor;
    margin-right: 26px;
    flex-shrink: 0;
}

.hero h1 {
    margin: 0 0 18px;
    font-size: clamp(2.5rem, 6vw, 4.15rem);
    line-height: 0.96;
    letter-spacing: -0.04em;
    max-width: 760px;
}

.hero h1 span {
    color: var(--accent-2);
}

.hero p {
    margin: 0;
    font-size: 20px;
    max-width: 690px;
    color: var(--muted-2);
    z-index: 999;
    display: block;
    position: relative;
    font-weight: 200;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.hero-points {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 34px;
}

.hero-point {
    padding: 18px 18px 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
    box-shadow: var(--shadow);
    min-height: 126px;
}

.hero-point strong {
    display: block;
    margin-bottom: 8px;
    color: var(--accent-2);
    font-size: 1.35rem;
    line-height: 1;
}

.hero-point span {
    display: block;
    color: var(--muted);
    font-size: 0.94rem;
}

.hero-card {
    position: relative;
    /* padding: 24px; */
    /* border-radius: 32px; */
    /* background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)); */
    /* border: 1px solid rgba(255, 255, 255, 0.1); */
    /* box-shadow: var(--shadow); */
    overflow: hidden;
}

.hero-card::before {
    content: "";
    position: absolute;
    inset: auto 30% 30% auto;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(181, 154, 130, 0.22), transparent 66%);
    pointer-events: none;
}

.card-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 26px;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--muted);
    font-size: 0.84rem;
    white-space: nowrap;
}

.chip strong {
    color: var(--text);
}

.hero-visual {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    position: relative;
    z-index: 1;
}

.visual-card {
    border-radius: 22px;
    padding: 22px;
    background: linear-gradient(145deg, rgba(181, 154, 130, 0.12), rgba(255, 255, 255, 0.04));
    border: 1px solid rgba(255, 255, 255, 0.08);
    min-height: 190px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.visual-card:nth-child(1) {
    grid-column: span 2;
    min-height: 220px;
}

.visual-title {
    font-weight: 800;
    font-size: 1.05rem;
    margin: 0;
}

.visual-text {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 0.94rem;
}

.material-art {
    position: relative;
    overflow: hidden;
}

.material-art::before,
.material-art::after {
    content: "";
    position: absolute;
    inset: auto;
    border-radius: 20px;
    opacity: 0.9;
}

.material-art.geotextile::before {
    width: 72%;
    height: 74px;
    right: 22px;
    bottom: 22px;
    transform: skewX(-18deg);
    opacity: 0.2;
    background:
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.1) 0 5px, rgba(0, 0, 0, 0) 5px 12px),
        linear-gradient(135deg, rgba(210, 188, 168, 0.8), rgba(143, 119, 99, 0.7));
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.2);
}

.material-art.geotextile::after {
    width: 48%;
    height: 14px;
    left: 24px;
    bottom: 34px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
}

.material-art.geomembrane::before {
    width: 110px;
    height: 110px;
    right: 24px;
    bottom: 18px;
    opacity: 0.3;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(210, 188, 168, 0.95), rgba(143, 119, 99, 0.32) 60%, rgba(255, 255, 255, 0.02) 61%);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.material-art.geomembrane::after {
    width: 100%;
    height: 34px;
    left: 0;
    bottom: 0;
    border-radius: 0;
    background: linear-gradient(90deg, rgba(181, 154, 130, 0.3), transparent 60%);
}

.material-art.geogrid::before {
    width: 120px;
    height: 120px;
    right: 22px;
    bottom: 18px;
    opacity: 0.2;
    background:
        linear-gradient(90deg, transparent 0 18%, rgba(210, 188, 168, 0.8) 18% 24%, transparent 24% 44%, rgba(210, 188, 168, 0.8) 44% 50%, transparent 50% 70%, rgba(210, 188, 168, 0.8) 70% 76%, transparent 76%),
        linear-gradient(transparent 0 18%, rgba(210, 188, 168, 0.8) 18% 24%, transparent 24% 44%, rgba(210, 188, 168, 0.8) 44% 50%, transparent 50% 70%, rgba(210, 188, 168, 0.8) 70% 76%, transparent 76%);
    border-radius: 20px;
    transform: rotate(-10deg);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.material-art.geogrid::after {
    width: 84px;
    height: 84px;
    left: 18px;
    top: 16px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(181, 154, 130, 0.34), transparent 72%);
}

section {
    padding: clamp(50px, 8vw, 0px) 0;
    position: relative;
}

.section-head {
    display: flex;
    justify-content: space-between;
    gap: 22px;
    align-items: end;
    margin-bottom: 34px;
}

.section-head h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.04em;
    line-height: 1;
}

.section-head p {
    margin: 0;
    color: var(--muted);
    max-width: 620px;
}

.about-grid,
.production-grid,
.contact-grid,
.facts-grid {
    display: grid;
    gap: var(--grid-gap);
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.surface {
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018));
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
}

.about-copy,
.about-visual,
.quality-panel,
.facts-panel {
    padding: clamp(22px, 3vw, 36px);
}

.about-copy p,
.facts-panel p {
    margin: 0 0 16px;
    color: var(--muted);
}

.feature-list,
.facts-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.feature-item,
.fact-item {
    padding: 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.feature-item strong,
.fact-item strong {
    display: block;
    margin-bottom: 8px;
    color: var(--accent-2);
    font-size: 1rem;
}

.about-visual {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 100%;
    overflow: hidden;
    padding: 0;
}

.about-copy {
    padding: 0;
    font-size: 20px;
}

.schematic {
    margin-top: 24px;
    min-height: 370px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background:
        linear-gradient(135deg, rgba(181, 154, 130, 0.16), rgba(255, 255, 255, 0.02)),
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
    position: relative;
    overflow: hidden;
}

.schematic::before {
    content: "";
    position: absolute;
    inset: 24px;
    border-radius: 18px;
    border: 1px dashed rgba(255, 255, 255, 0.09);
}

.scheme-card {
    position: absolute;
    padding: 16px 18px;
    border-radius: 18px;
    background: rgba(13, 13, 13, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.08);
    max-width: 240px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.scheme-card strong {
    display: block;
    margin-bottom: 6px;
    color: var(--accent-2);
}

.scheme-card small {
    color: var(--muted);
    display: block;
}

.scheme-1 {
    top: 34px;
    left: 34px;
}

.scheme-2 {
    top: 25%;
    right: 28px;
}

.scheme-3 {
    bottom: 34px;
    left: 10%;
}

.scheme-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, rgba(181, 154, 130, 0.0), rgba(181, 154, 130, 0.65), rgba(181, 154, 130, 0.0));
    transform-origin: left center;
}

.line-a {
    width: 150px;
    top: 100px;
    left: 225px;
    transform: rotate(18deg);
}

.line-b {
    width: 180px;
    top: 236px;
    left: 340px;
    transform: rotate(120deg);
}

.line-c {
    width: 180px;
    bottom: 50px;
    left: 250px;
    transform: rotate(333deg);
}

.stats,
.metrics-grid,
.applications-grid,
.adv-grid,
.products-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 15px;
}

.stat,
.metric,
.product-card,
.app-card,
.adv-card,
.step-card,
.contact-card {
    padding: 22px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.contact-card--image {
    height: 400px;
    width: 100%;
    object-fit: cover;
}

.facts-panel--image {
    border-radius: 15px;
    border: 1px solid rgba(181, 154, 130, 0.22);
    height: 370px;
    width: 100%;
    object-fit: cover;
}

.stat strong,
.metric strong {
    display: block;
    font-size: clamp(1.8rem, 4vw, 1.2rem);
    line-height: 1;
    margin-bottom: 8px;
    color: var(--accent-2);
}

.product-card,
.app-card,
.adv-card,
.step-card,
.contact-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018));
    padding: 24px;
}

.product-card {
    display: flex;
    gap: 10px;
}

.product-info {
    flex: 1;
}

.product-card::before,
.adv-card::before,
.step-card::before,
.contact-card::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0.8;
}

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

.applications-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.adv-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card-icon {
    width: 200px;
    height: 200px;
    border-radius: 16px;
    background: rgba(181, 154, 130, 0.14);
    border: 1px solid rgba(181, 154, 130, 0.22);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    color: var(--accent-2);
    font-size: 1.45rem;
    font-weight: 800;
    overflow: hidden;
}

.advantages-band .card-icon {
    width: 50px;
    height: 50px;
}

.product-card h3,
.app-card h3,
.adv-card h3,
.step-card h3,
.contact-card h3,
.facts-panel h3,
.quality-panel h3 {
    margin: 0 0 12px;
    font-size: 1.35rem;
}

.product-card p,
.app-card p,
.adv-card p,
.step-card p,
.contact-card p,
.contact-card li,
.metric span,
.stat span {
    margin: 0;
    color: var(--muted);
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.tag {
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--muted);
    font-size: 0.85rem;
}

.products-cta {
    margin-top: 28px;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.production-grid {
    align-items: start;
}

.steps {
    display: grid;
    gap: 16px;
}

.step-card {
    display: grid;
    grid-template-columns: 70px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.step-number {
    width: 70px;
    height: 70px;
    border-radius: 22px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, rgba(181, 154, 130, 0.18), rgba(255, 255, 255, 0.03));
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--accent-2);
    font-size: 1.35rem;
    font-weight: 800;
}

.quality-list {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: grid;
    gap: 14px;
}

.quality-list li {
    position: relative;
    padding: 16px 18px 16px 56px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--muted);
}

.quality-list li::before {
    content: "";
    position: absolute;
    left: 18px;
    top: 18px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-2), var(--accent-dark));
    box-shadow: 10px 0 0 rgba(181, 154, 130, 0.22);
}

.applications {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
}

.advantages-band {
    border-radius: 36px;
    padding: clamp(28px, 4vw, 42px);
    background:
        linear-gradient(135deg, rgba(181, 154, 130, 0.16), rgba(255, 255, 255, 0.03)),
        #121212;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
}

.contact-card ul {
    padding-left: 18px;
    margin: 12px 0 0;
    display: grid;
    gap: 10px;
}

.form {
    display: grid;
    gap: 14px;
    margin-top: 8px;
}

.form input,
.form textarea {
    width: 100%;
    padding: 15px 16px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    outline: none;
    transition: border-color .25s ease, background .25s ease;
}

.form input:focus,
.form textarea:focus {
    border-color: rgba(181, 154, 130, 0.58);
    background: rgba(255, 255, 255, 0.06);
}

.form textarea {
    min-height: 142px;
    resize: vertical;
}

.note {
    color: var(--muted-2);
    font-size: 0.88rem;
}

.cta-panel {
    margin-top: 30px;
    padding: clamp(26px, 4vw, 38px);
    border-radius: 30px;
    background: linear-gradient(135deg, rgba(181, 154, 130, 0.17), rgba(255, 255, 255, 0.04));
    border: 1px solid rgba(255, 255, 255, 0.09);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-panel h3 {
    margin: 0 0 8px;
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.cta-panel p {
    margin: 0;
    color: var(--muted);
    max-width: 680px;
}

.footer {
    padding: 34px 0 46px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--muted-2);
    font-size: 0.95rem;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
}

.mobile-nav {
    display: none;
    position: fixed;
    inset: calc(var(--header-h) + 8px) 16px auto 16px;
    z-index: 25;
    border-radius: 24px;
    background: rgba(15, 15, 15, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
    padding: 16px;
}

.mobile-nav a {
    display: block;
    padding: 14px 12px;
    border-radius: 14px;
    color: var(--text);
}

.mobile-nav a:hover {
    background: rgba(255, 255, 255, 0.04);
}

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

@media (max-width: 1080px) {

    .hero-grid,
    .about-grid,
    .production-grid,
    .contact-grid,
    .products-grid,
    .applications-grid,
    .adv-grid,
    .facts-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .hero-card {
        min-height: auto;
    }

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

    .section-head {
        flex-direction: column;
        align-items: start;
    }
}

@media (max-width: 820px) {
    :root {
        --header-h: 76px;
    }

    .nav-links,
    .header-actions .btn-secondary {
        display: none;
    }

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

    .brand-logo {
        height: 40px;
    }

    .hero {
        padding-top: 26px;
    }

    .hero-points,
    .feature-list,
    .facts-list,
    .products-grid,
    .applications-grid,
    .adv-grid,
    .stats,
    .metrics-grid,
    .about-grid,
    .production-grid,
    .contact-grid,
    .facts-grid {
        grid-template-columns: 1fr;
    }

    .step-card {
        grid-template-columns: 1fr;
    }

    .step-number {
        width: 56px;
        height: 56px;
        border-radius: 16px;
    }

    .schematic {
        min-height: 480px;
    }

    .scheme-1 {
        top: 24px;
        left: 24px;
    }

    .scheme-2 {
        top: 34%;
        right: 18px;
    }

    .scheme-3 {
        bottom: 24px;
        left: 24px;
    }

    .line-a,
    .line-b,
    .line-c {
        display: none;
    }

    .footer-inner {
        flex-direction: column;
    }

    .hero-actions .btn,
    .hero-actions .btn-secondary {
        width: 100%;
    }

    .btn,
    .btn-secondary {
        width: fit-content;
    }
}

@media (max-width: 560px) {
    .container {
        width: min(var(--container), calc(100% - 20px));
    }

    .header-inner {
        gap: 12px;
    }

    .brand-title {
        font-size: 1rem;
    }

    .brand-subtitle {
        font-size: 0.66rem;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .hero-card {
        padding: 18px;
        border-radius: 24px;
    }

    .visual-card {
        min-height: 168px;
        padding: 18px;
    }

    .visual-card:nth-child(1) {
        min-height: 190px;
    }

    .product-card,
    .app-card,
    .adv-card,
    .step-card,
    .contact-card,
    .about-copy,
    .about-visual,
    .quality-panel,
    .facts-panel {
        padding: 18px;
    }

    .cta-panel {
        padding: 22px;
    }

    .btn,
    .btn-secondary {
        width: 100%;
    }

    .chip {
        white-space: normal;
    }
}

/* Вкладки технологий */
.prod-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.prod-tab {
  padding: 10px 24px;
  border: 2px solid var(--border, #e0e0e0);
  background: transparent;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--muted, #666);
}

.prod-tab:hover {
  border-color: var(--accent, #1a6c3a);
  color: var(--accent, #1a6c3a);
}

.prod-tab--active {
  background: var(--accent, #1a6c3a);
  border-color: var(--accent, #1a6c3a);
  color: #fff;
}

.prod-panel {
  display: none;
}

.prod-panel--active {
  display: block;
}

/* Форма контактов */
.contact-card--form {
  grid-column: 1 / -1; /* занимает всю ширину под двумя карточками */
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted, #666);
}

.form-group input,
.form-group textarea {
  padding: 10px 14px;
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent, #1a6c3a);
}

.form-note {
  font-size: 0.8rem;
  color: var(--muted, #999);
  margin: 0;
}