:root {
    --ink: #071932;
    --muted: #64748b;
    --blue: #0758ff;
    --blue-dark: #0a3161;
    --line: #d7e1ee;
    --soft: #f6f9fc;
    --night: #061326;
    --shadow: 0 18px 50px rgba(7, 25, 50, 0.12);
    --transition: 0.25s ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 86px;
}

body {
    min-width: 320px;
    background: var(--soft);
    color: var(--ink);
    font-family: "Segoe UI", Arial, sans-serif;
    line-height: 1.6;
}

body.no-scroll {
    overflow: hidden;
}

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

.container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(215, 225, 238, 0.9);
    backdrop-filter: blur(16px);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 24px;
}

.logo {
    display: inline-flex;
    align-items: center;
    font-size: 22px;
    font-weight: 800;
    color: var(--ink);
    white-space: nowrap;
}

.logo span {
    color: var(--blue);
    margin-left: 4px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
    font-weight: 700;
    font-size: 15px;
}

.nav a {
    transition: color var(--transition);
}

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

.nav-cta {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 20px;
    border-radius: 8px;
    background: var(--blue);
    color: #fff;
    box-shadow: 0 12px 28px rgba(7, 88, 255, 0.24);
}

.nav-cta:hover {
    color: #fff !important;
    background: #0046d9;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 5px auto;
    background: var(--ink);
    border-radius: 2px;
}

.hero {
    position: relative;
    min-height: 660px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: url("assets/sunset-charging-stations.png") center right / cover no-repeat;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(246, 249, 252, 0.98) 0%, rgba(246, 249, 252, 0.88) 39%, rgba(246, 249, 252, 0.35) 68%, rgba(6, 19, 38, 0.18) 100%),
        linear-gradient(0deg, rgba(6, 19, 38, 0.28), rgba(6, 19, 38, 0));
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 92px 0 74px;
}

.eyebrow,
.section-label,
.modal-kicker,
.product-type {
    color: var(--blue);
    font-size: clamp(14px, 1vw, 18px);
    font-weight: 800;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.hero .eyebrow {
    font-size: clamp(15px, 1.2vw, 19px);
}

.hero h1 {
    max-width: 720px;
    margin-top: 12px;
    font-size: clamp(38px, 4.8vw, 58px);
    line-height: 1.08;
    letter-spacing: 0;
}

.hero-content > p:not(.eyebrow) {
    max-width: 580px;
    margin-top: 24px;
    color: #263b55;
    font-size: 18px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 22px;
    border: 0;
    border-radius: 8px;
    font-weight: 800;
    cursor: pointer;
    transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

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

.btn-primary {
    background: var(--blue);
    color: #fff;
    box-shadow: 0 14px 30px rgba(7, 88, 255, 0.24);
}

.btn-ghost,
.btn-secondary {
    background: #fff;
    color: var(--blue-dark);
    border: 1px solid #b9c8db;
}

.btn-secondary {
    width: 100%;
    margin-top: 18px;
    /* Обновлённый стиль для кнопок в карточках – синяя обводка и текст */
    border-color: var(--blue);
    color: var(--blue);
    background: transparent;
    font-weight: 700;
    transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.btn-secondary:hover {
    background: var(--blue);
    color: #fff;
    border-color: var(--blue);
    box-shadow: 0 8px 20px rgba(7, 88, 255, 0.25);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: scale(0.98);
}

.hero-badges {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    width: min(760px, 100%);
    margin-top: 50px;
}

.hero-badges div {
    min-height: 82px;
    padding: 16px 18px;
    border: 1px solid rgba(215, 225, 238, 0.8);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.78);
    box-shadow: 0 10px 28px rgba(7, 25, 50, 0.08);
    backdrop-filter: blur(14px);
}

.hero-badges strong,
.why-grid strong {
    display: block;
    font-size: 24px;
    line-height: 1.1;
}

.hero-badges span,
.why-grid span {
    color: var(--muted);
    font-size: 13px;
}

section {
    scroll-margin-top: 86px;
}

.about,
.tonhe,
.services,
.catalog {
    padding: 86px 0;
}

.about {
    background: #fff;
}

.tonhe {
    background:
        linear-gradient(180deg, #ffffff 0%, #eef6ff 100%),
        var(--soft);
}

.tonhe-shell {
    display: grid;
    gap: 24px;
}

.tonhe-intro {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 28px;
    align-items: stretch;
}

.tonhe-copy {
    padding: 34px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: 0 14px 38px rgba(7, 25, 50, 0.08);
}

.tonhe-copy h2 {
    max-width: 780px;
    margin-bottom: 18px;
}

.tonhe-copy p:not(.section-label) {
    max-width: 880px;
    color: var(--muted);
}

.tonhe-copy p + p {
    margin-top: 14px;
}

.tonhe-brand-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 18px;
    min-height: 260px;
    padding: 30px;
    border-radius: 8px;
    background:
        radial-gradient(circle at 80% 15%, rgba(7, 88, 255, 0.18), transparent 32%),
        #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    text-align: center;
}

.tonhe-brand-card img {
    display: block;
    width: min(180px, 70%);
    height: auto;
    margin: 0 auto;
}

.tonhe-brand-card span {
    color: var(--blue-dark);
    font-weight: 800;
    text-align: center;
}

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

.tonhe-proof-grid article {
    min-height: 120px;
    padding: 24px;
    border-radius: 8px;
    background: var(--night);
    color: #fff;
    box-shadow: 0 16px 34px rgba(7, 25, 50, 0.14);
}

.tonhe-proof-grid strong {
    display: block;
    font-size: 34px;
    line-height: 1;
}

.tonhe-proof-grid span {
    display: block;
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 14px;
}

.tonhe-detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 24px;
    align-items: stretch;
}

.tonhe-photo-panel,
.tonhe-reliability,
.tonhe-map-block {
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 14px 38px rgba(7, 25, 50, 0.08);
}

.tonhe-photo-panel {
    position: relative;
    min-height: 430px;
}

.tonhe-photo-panel img {
    width: 100%;
    height: 100%;
    min-height: 430px;
    object-fit: cover;
}

.tonhe-photo-note {
    position: absolute;
    left: 24px;
    right: 24px;
    bottom: 24px;
    padding: 18px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(14px);
    box-shadow: 0 12px 28px rgba(7, 25, 50, 0.16);
}

.tonhe-photo-note strong,
.tonhe-photo-note span {
    display: block;
}

.tonhe-photo-note strong {
    color: var(--ink);
    font-size: 18px;
}

.tonhe-photo-note span {
    margin-top: 8px;
    color: var(--muted);
}

.tonhe-reliability {
    padding: 30px;
    background:
        linear-gradient(135deg, rgba(7, 88, 255, 0.12), transparent 35%),
        #fff;
}

.tonhe-reliability h3,
.tonhe-map-block h3 {
    font-size: 28px;
    line-height: 1.16;
    margin-bottom: 18px;
}

.tonhe-reliability ul {
    display: grid;
    gap: 14px;
    list-style: none;
}

.tonhe-reliability li {
    position: relative;
    padding: 14px 14px 14px 42px;
    border: 1px solid rgba(215, 225, 238, 0.82);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.74);
    color: #31445c;
}

.tonhe-reliability li::before {
    content: "";
    position: absolute;
    top: 20px;
    left: 18px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--blue);
    box-shadow: 0 0 0 6px rgba(7, 88, 255, 0.1);
}

.tonhe-map-block {
    display: grid;
    grid-template-columns: 0.75fr 1.25fr;
    gap: 18px;
    align-items: center;
    padding: 30px;
    background:
        radial-gradient(circle at 90% 20%, rgba(7, 88, 255, 0.14), transparent 34%),
        #fff;
}

.tonhe-map-block p:not(.section-label) {
    color: var(--muted);
}


.eurasia-map .land {
    fill: #dce9f8;
    stroke: #91acd0;
    stroke-width: 2;
}

.eurasia-map .muted-land {
    fill: #e7eff8;
}

.eurasia-map .pin {
    fill: var(--blue);
    stroke: #fff;
    stroke-width: 4;
    filter: drop-shadow(0 5px 8px rgba(7, 88, 255, 0.28));
}

.eurasia-map text {
    fill: var(--blue-dark);
    font-size: 18px;
    font-weight: 800;
}

.about-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 56px;
    align-items: start;
}

.about-grid > p {
    font-size: clamp(20px, 1.7vw, 30px);
    line-height: 1.5;
    color: var(--muted);
}

h2 {
    font-size: clamp(30px, 4vw, 44px);
    line-height: 1.14;
    color: var(--ink);
    letter-spacing: 0;
}

.section-label {
    margin-bottom: 10px;
}

.center {
    text-align: center;
}

.services {
    background:
        radial-gradient(circle at 5% 10%, rgba(7, 88, 255, 0.08), transparent 28%),
        radial-gradient(circle at 95% 20%, rgba(245, 172, 74, 0.12), transparent 26%),
        var(--soft);
}

.services h2,
.catalog h2 {
    text-align: center;
    margin-bottom: 34px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.service-card {
    min-height: 250px;
    padding: 30px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 12px 34px rgba(7, 25, 50, 0.07);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: 22px;
    border-radius: 8px;
    background: var(--blue);
    color: #fff;
    font-weight: 800;
}

.service-card h3 {
    margin-bottom: 12px;
    font-size: 22px;
}

.service-card p,
.about p,
.subtitle,
.product-card p,
.modal-content p,
.footer p,
.footer a,
.footer-bottom {
    color: var(--muted);
}

.catalog {
    background: linear-gradient(180deg, #fff 0%, #eef6ff 100%);
}

.subtitle {
    max-width: 560px;
    margin: -18px auto 34px;
    text-align: center;
}

.catalog-slider {
    display: grid;
    gap: 18px;
}

.product-slider-viewport {
    overflow: hidden;
    padding: 8px 4px 4px;
}

.product-slider {
    display: flex;
    gap: 22px;
    transition: transform 0.35s ease;
    width: max-content;
    will-change: transform;
}

.product-card {
    flex: 0 0 278px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 12px 30px rgba(7, 25, 50, 0.08);
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card .btn-secondary {
    margin-top: auto;
}

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
}

.slider-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
    color: var(--blue-dark);
    font-size: 30px;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition);
}

.slider-btn:hover:not(:disabled),
.slider-btn:focus-visible:not(:disabled) {
    background: var(--blue);
    border-color: var(--blue);
    color: #fff;
    outline: none;
}

.slider-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.slider-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    min-height: 12px;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border: 0;
    border-radius: 50%;
    background: rgba(7, 88, 255, 0.25);
    cursor: pointer;
    transition: all var(--transition);
}

.slider-dot.is-active {
    width: 28px;
    border-radius: 999px;
    background: var(--blue);
}

.product-card:hover,
.product-card:focus {
    outline: none;
    transform: translateY(-4px);
    border-color: rgba(7, 88, 255, 0.55);
    box-shadow: var(--shadow);
}

.product-image {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 220px;
    margin-bottom: 16px;
    border-radius: 8px;
    background: linear-gradient(180deg, #fdfefe, #edf4fb);
}

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

.product-card h3 {
    min-height: 54px;
    margin: 6px 0 4px;
    font-size: 19px;
    line-height: 1.25;
}

.why {
    padding: 72px 0;
    background:
        linear-gradient(135deg, rgba(7, 88, 255, 0.18), transparent 38%),
        linear-gradient(90deg, #061326, #0a3161);
    color: #fff;
}

.why h2 {
    color: #fff;
    text-align: center;
    margin-bottom: 36px;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.why-grid div {
    min-height: 120px;
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
}

.why-grid span {
    display: block;
    margin-top: 8px;
    color: rgba(255, 255, 255, 0.72);
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(6, 19, 38, 0.64);
    backdrop-filter: blur(12px);
}

.modal.is-open {
    display: flex;
}

.modal-content {
    position: relative;
    width: min(960px, 100%);
    max-height: min(860px, calc(100vh - 40px));
    overflow: auto;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.32);
    animation: modalIn 0.24s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: translateY(18px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.close-btn {
    position: sticky;
    top: 16px;
    left: calc(100% - 58px);
    z-index: 2;
    width: 42px;
    height: 42px;
    margin: 16px 16px -58px auto;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.94);
    color: var(--ink);
    font-size: 30px;
    line-height: 1;
    cursor: pointer;
}

.modal-hero {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 34px;
    padding: 44px 44px 28px;
    background: linear-gradient(135deg, #f8fbff, #eaf3ff);
}

.modal-hero img {
    width: 100%;
    height: 300px;
    object-fit: contain;
    border-radius: 8px;
    background: #fff;
    box-shadow: inset 0 0 0 1px var(--line);
}

.modal-hero h2 {
    margin: 8px 52px 12px 0;
    font-size: clamp(28px, 4vw, 42px);
}

.modal-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.modal-chips span {
    padding: 8px 12px;
    border: 1px solid rgba(7, 88, 255, 0.18);
    border-radius: 999px;
    background: rgba(7, 88, 255, 0.08);
    color: var(--blue-dark);
    font-size: 13px;
    font-weight: 800;
}

.modal-body {
    display: grid;
    grid-template-columns: 1.3fr 0.9fr;
    gap: 28px;
    padding: 32px 44px 44px;
}

.modal-body h3 {
    margin-bottom: 16px;
    font-size: 21px;
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.spec-grid div {
    min-height: 86px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.spec-grid dt {
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.spec-grid dd {
    margin-top: 6px;
    color: var(--ink);
    font-weight: 800;
}

.modal-panel {
    padding: 22px;
    border-radius: 8px;
    background: var(--night);
    color: #fff;
}

.modal-panel h3 {
    color: #fff;
}

.modal-panel ul {
    display: grid;
    gap: 12px;
    list-style: none;
}

.modal-panel li {
    position: relative;
    padding-left: 20px;
    color: rgba(255, 255, 255, 0.78);
}

.modal-panel li::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4ea4ff;
}

.footer {
    padding: 54px 0 28px;
    background: #081626;
    color: #fff;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.8fr 1fr;
    gap: 42px;
}

.footer .logo {
    color: #fff;
    margin-bottom: 14px;
}

.footer h3 {
    margin-bottom: 14px;
    font-size: 16px;
}

.footer a {
    display: block;
    margin-bottom: 8px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 38px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 13px;
}

@media (max-width: 900px) {
    .container {
        width: min(100% - 28px, 1180px);
    }

    .menu-toggle {
        display: block;
    }

    .nav {
        position: absolute;
        top: 76px;
        left: 14px;
        right: 14px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 8px;
        background: #fff;
        box-shadow: var(--shadow);
    }

    .nav.is-open {
        display: flex;
    }

    .nav a {
        padding: 13px 14px;
        border-radius: 8px;
    }

    .nav-cta {
        justify-content: center;
        margin-top: 8px;
    }

    .hero {
        min-height: 690px;
        align-items: end;
        background-position: center;
    }

    .hero-overlay {
        background:
            linear-gradient(180deg, rgba(6, 19, 38, 0.18) 0%, rgba(246, 249, 252, 0.8) 38%, rgba(246, 249, 252, 0.98) 100%),
            linear-gradient(90deg, rgba(246, 249, 252, 0.7), rgba(246, 249, 252, 0.2));
    }

    .hero-content {
        padding: 280px 0 42px;
    }

    .hero-content > p:not(.eyebrow) {
        font-size: 16px;
    }

    .section-label {
        font-size: 15px;
    }

    .about-grid > p {
        font-size: 18px;
    }

    .hero-badges,
    .services-grid,
    .why-grid,
    .about-grid,
    .modal-hero,
    .modal-body,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero-badges {
        margin-top: 34px;
    }

    .about,
    .tonhe,
    .services,
    .catalog {
        padding: 62px 0;
    }

    .tonhe-intro,
    .tonhe-detail-grid,
    .tonhe-map-block {
        grid-template-columns: 1fr;
    }

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

    .tonhe-copy,
    .tonhe-reliability,
    .tonhe-map-block {
        padding: 24px;
    }

    .tonhe-brand-card {
        min-height: auto;
    }

    .product-card {
        flex-basis: 260px;
    }

    .slider-controls {
        gap: 10px;
    }

    .slider-btn {
        width: 38px;
        height: 38px;
        font-size: 26px;
    }

    .modal {
        padding: 10px;
        align-items: end;
    }

    .modal-content {
        max-height: calc(100vh - 20px);
        border-radius: 12px 12px 0 0;
    }

    .modal-hero {
        padding: 34px 18px 22px;
    }

    .modal-hero img {
        height: 230px;
    }

    .modal-body {
        padding: 24px 18px 28px;
    }

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

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

@media (max-width: 520px) {
    .header-container {
        min-height: 68px;
    }

    .nav {
        top: 68px;
    }

    html {
        scroll-padding-top: 76px;
    }

    section {
        scroll-margin-top: 76px;
    }

    .logo {
        font-size: 20px;
    }

    .hero {
        min-height: 660px;
    }

    .hero-content {
        padding-top: 250px;
    }

    .hero-actions {
        display: grid;
    }

    .btn {
        width: 100%;
    }

    .hero-badges div,
    .tonhe-proof-grid article,
    .service-card,
    .why-grid div {
        min-height: auto;
    }

    .tonhe-proof-grid {
        grid-template-columns: 1fr;
    }

    .tonhe-photo-panel,
    .tonhe-photo-panel img {
        min-height: 360px;
    }

    .tonhe-photo-note {
        left: 14px;
        right: 14px;
        bottom: 14px;
    }

    .product-card {
        flex-basis: 82vw;
    }

    .product-image {
        height: 210px;
    }

    .modal-chips span {
        width: 100%;
        text-align: center;
    }
}


/* =========================================================
   VISUAL REFRESH — серо-бело-синяя технологичная атмосфера
   Структура и расположение элементов не изменяются.
   ========================================================= */

:root {
    --soft: #eef3f8;
    --line: #d3deeb;
    --blue-glow: rgba(7, 88, 255, 0.14);
    --steel: #dbe4ee;
}

/* Общий фон: не просто белый, а холодная технологичная поверхность */
body {
    background:
        radial-gradient(circle at 8% 12%, rgba(7, 88, 255, 0.08), transparent 24%),
        radial-gradient(circle at 92% 30%, rgba(89, 125, 164, 0.10), transparent 26%),
        linear-gradient(135deg, #f8fafc 0%, #edf3f8 48%, #f7f9fc 100%);
}

/* Лёгкая сетка по странице */
main {
    position: relative;
    overflow: hidden;
}

main::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.28;
    background-image:
        linear-gradient(rgba(7, 88, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(7, 88, 255, 0.035) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(to bottom, transparent 0%, black 10%, black 90%, transparent 100%);
    z-index: 0;
}

main > section {
    position: relative;
    isolation: isolate;
}

main > section > .container {
    position: relative;
    z-index: 2;
}

/* Декоративные технологичные дуги */
.about::before,
.tonhe::before,
.services::before,
.catalog::before {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    border: 1px solid rgba(7, 88, 255, 0.08);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.about::after,
.services::after,
.catalog::after {
    content: "";
    position: absolute;
    width: 180px;
    height: 180px;
    border: 1px solid rgba(77, 108, 142, 0.08);
    transform: rotate(45deg);
    pointer-events: none;
    z-index: 0;
}

/* HERO — чуть глубже, без изменения его композиции */
.hero {
    box-shadow: inset 0 -1px 0 rgba(255,255,255,0.55);
}

.hero::before {
    content: "";
    position: absolute;
    width: 560px;
    height: 560px;
    right: -160px;
    top: -180px;
    border: 1px solid rgba(255,255,255,0.22);
    border-radius: 50%;
    box-shadow:
        0 0 0 70px rgba(255,255,255,0.035),
        0 0 0 140px rgba(255,255,255,0.025);
    pointer-events: none;
    z-index: 1;
}

.hero-overlay {
    background:
        linear-gradient(90deg,
            rgba(241, 246, 251, 0.99) 0%,
            rgba(241, 246, 251, 0.94) 31%,
            rgba(241, 246, 251, 0.70) 51%,
            rgba(9, 25, 47, 0.12) 78%,
            rgba(6, 19, 38, 0.30) 100%),
        linear-gradient(180deg,
            rgba(6, 19, 38, 0.08),
            rgba(6, 19, 38, 0.20));
}

.hero-content {
    text-shadow: 0 1px 1px rgba(255,255,255,0.45);
}

.hero-badges div {
    background: rgba(248, 251, 255, 0.72);
    border-color: rgba(255,255,255,0.75);
    box-shadow:
        0 14px 35px rgba(7, 25, 50, 0.10),
        inset 0 1px 0 rgba(255,255,255,0.85);
}

/* О КОМПАНИИ — холодный стеклянный фон */
.about {
    background:
        radial-gradient(circle at 88% 18%, rgba(7, 88, 255, 0.09), transparent 25%),
        linear-gradient(135deg, #ffffff 0%, #f0f5fa 100%);
}

.about::before {
    right: -190px;
    top: -160px;
}

.about::after {
    left: -80px;
    bottom: -90px;
}

/* TONHE — более выраженная технологичная секция */
.tonhe {
    background:
        radial-gradient(circle at 10% 15%, rgba(7, 88, 255, 0.10), transparent 25%),
        radial-gradient(circle at 92% 75%, rgba(63, 102, 145, 0.12), transparent 28%),
        linear-gradient(135deg, #e9f0f7 0%, #f8fafc 48%, #e8f1fb 100%);
}

.tonhe::before {
    left: -190px;
    bottom: -210px;
    border-color: rgba(7, 88, 255, 0.07);
    box-shadow: 0 0 0 70px rgba(7, 88, 255, 0.025);
}

.tonhe-copy,
.tonhe-brand-card,
.tonhe-photo-panel,
.tonhe-reliability {
    box-shadow:
        0 18px 45px rgba(7, 25, 50, 0.09),
        0 0 0 1px rgba(255,255,255,0.38) inset;
}

.tonhe-copy {
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(10px);
}

.tonhe-brand-card {
    background:
        radial-gradient(circle at 80% 15%, rgba(7, 88, 255, 0.22), transparent 34%),
        linear-gradient(145deg, rgba(255,255,255,0.98), rgba(237,244,251,0.90));
}

.tonhe-reliability {
    background:
        radial-gradient(circle at 100% 0%, rgba(7, 88, 255, 0.14), transparent 35%),
        rgba(255,255,255,0.86);
    backdrop-filter: blur(8px);
}

/* Карточки доказательств — чуть более премиальный вид */
.tonhe-proof-grid article {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(135deg, #071932 0%, #0d315d 100%);
}

.tonhe-proof-grid article::after {
    content: "";
    position: absolute;
    width: 110px;
    height: 110px;
    right: -38px;
    top: -48px;
    border: 1px solid rgba(78, 164, 255, 0.25);
    border-radius: 50%;
}

/* УСЛУГИ — вместо плоского серого фона */
.services {
    background:
        radial-gradient(circle at 5% 10%, rgba(7, 88, 255, 0.12), transparent 25%),
        radial-gradient(circle at 95% 85%, rgba(67, 104, 143, 0.13), transparent 28%),
        linear-gradient(135deg, #f8fafc 0%, #e8eef5 100%);
}

.services::before {
    right: -180px;
    top: -170px;
}

.services::after {
    left: -70px;
    bottom: -70px;
}

.service-card {
    position: relative;
    overflow: hidden;
    background: rgba(255,255,255,0.78);
    backdrop-filter: blur(8px);
    box-shadow:
        0 16px 38px rgba(7,25,50,0.08),
        inset 0 1px 0 rgba(255,255,255,0.95);
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition);
}

.service-card::before {
    content: "";
    position: absolute;
    width: 150px;
    height: 150px;
    right: -80px;
    bottom: -80px;
    border-radius: 50%;
    background: rgba(7,88,255,0.055);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(7,88,255,0.28);
    box-shadow: 0 22px 48px rgba(7,25,50,0.12);
}

.service-icon {
    box-shadow: 0 9px 22px rgba(7,88,255,0.24);
}

/* КАТАЛОГ — фон как техническая панель */
.catalog {
    background:
        radial-gradient(circle at 12% 15%, rgba(7,88,255,0.10), transparent 25%),
        radial-gradient(circle at 88% 75%, rgba(70,105,140,0.12), transparent 28%),
        linear-gradient(180deg, #f1f5f9 0%, #e6edf5 100%);
}

.catalog::before {
    right: -160px;
    top: -190px;
}

.catalog::after {
    left: -60px;
    bottom: -75px;
}

.catalog-slider {
    position: relative;
}

.catalog-slider::before,
.catalog-slider::after {
    content: "";
    position: absolute;
    pointer-events: none;
    border-radius: 50%;
}

.catalog-slider::before {
    width: 14px;
    height: 14px;
    right: 8%;
    top: 4px;
    background: var(--blue);
    box-shadow:
        0 0 0 8px rgba(7,88,255,0.08),
        0 0 28px rgba(7,88,255,0.35);
}

.catalog-slider::after {
    width: 220px;
    height: 220px;
    left: -140px;
    bottom: 30px;
    border: 1px solid rgba(7,88,255,0.08);
}

.product-card {
    background: rgba(255,255,255,0.88);
    box-shadow:
        0 15px 35px rgba(7,25,50,0.09),
        inset 0 1px 0 rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
}

.product-image {
    background:
        radial-gradient(circle at 50% 45%, rgba(7,88,255,0.09), transparent 45%),
        linear-gradient(135deg, #f8fafc, #dfe8f2);
}

/* Тонкая линия-индикатор под каталогом */
.slider-controls {
    position: relative;
}

.slider-controls::before {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -10px;
    width: min(520px, 75%);
    height: 2px;
    transform: translateX(-50%);
    background: linear-gradient(90deg, transparent, rgba(7,88,255,0.35), transparent);
}

/* WHY оставляем тёмной, но добавляем технологичную глубину */
.why {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 15% 20%, rgba(7,88,255,0.24), transparent 25%),
        radial-gradient(circle at 88% 80%, rgba(73,137,207,0.16), transparent 28%),
        linear-gradient(135deg, #061326 0%, #0a3161 100%);
}

.why::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    right: -220px;
    top: -250px;
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 50%;
    box-shadow:
        0 0 0 70px rgba(255,255,255,0.025),
        0 0 0 140px rgba(255,255,255,0.018);
    pointer-events: none;
}

.why-grid div {
    position: relative;
    overflow: hidden;
    background: rgba(255,255,255,0.065);
    backdrop-filter: blur(8px);
}

.why-grid div::after {
    content: "";
    position: absolute;
    width: 70px;
    height: 70px;
    right: -30px;
    top: -30px;
    border: 1px solid rgba(78,164,255,0.24);
    border-radius: 50%;
}

/* Футер — немного больше глубины, но без смены структуры */
.footer {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 85% 10%, rgba(7,88,255,0.12), transparent 28%),
        linear-gradient(135deg, #06111f 0%, #081d35 100%);
}

.footer::before {
    content: "";
    position: absolute;
    width: 360px;
    height: 360px;
    right: -170px;
    bottom: -210px;
    border: 1px solid rgba(78,164,255,0.10);
    border-radius: 50%;
    pointer-events: none;
}

/* Небольшие интерактивные акценты */
.nav-cta,
.btn-primary {
    box-shadow:
        0 12px 28px rgba(7,88,255,0.24),
        0 0 0 1px rgba(255,255,255,0.08) inset;
}

.nav-cta:hover,
.btn-primary:hover {
    box-shadow:
        0 16px 34px rgba(7,88,255,0.30),
        0 0 24px rgba(7,88,255,0.12);
}

/* Мобильные декоративные элементы не должны мешать контенту */
@media (max-width: 900px) {
    main::before {
        background-size: 54px 54px;
        opacity: 0.20;
    }

    .about::before,
    .tonhe::before,
    .services::before,
    .catalog::before {
        opacity: 0.65;
    }
}

@media (max-width: 520px) {
    .about::before,
    .tonhe::before,
    .services::before,
    .catalog::before {
        width: 300px;
        height: 300px;
    }

    .hero::before {
        width: 380px;
        height: 380px;
        right: -190px;
    }

    .slider-controls::before {
        width: 60%;
    }
}


/* =========================================================
   ABOUT / HEADINGS — акцентные градиентные стрелки
   ========================================================= */

.about-grid h2,
.tonhe-copy h2,
.services h2,
.catalog h2,
.why h2 {
    position: relative;
}

.about-grid h2::after,
.tonhe-copy h2::after,
.services h2::after,
.catalog h2::after,
.why h2::after {
    content: "";
    display: block;
    width: 82px;
    height: 3px;
    margin-top: 22px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--blue) 0%, rgba(7, 88, 255, 0.45) 55%, rgba(7, 88, 255, 0) 100%);
    box-shadow: 0 0 14px rgba(7, 88, 255, 0.16);
}



.services h2::after,
.catalog h2::after,
.why h2::after {
    margin-left: auto;
    margin-right: auto;
}

.services h2::before,
.catalog h2::before,
.why h2::before {
    left: calc(50% + 32px);
}

/* =========================================================
   ABOUT — заполняем свободное место полезным мини-блоком
   ========================================================= */

.about-grid {
    position: relative;
    row-gap: 34px;
}

.about-process {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 2px;
    padding-top: 8px;
    border-top: 1px solid rgba(145, 172, 208, 0.30);
}

.about-process-item {
    position: relative;
    min-height: 96px;
    padding: 18px 20px 16px 58px;
    border: 1px solid rgba(211, 222, 235, 0.95);
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(255,255,255,0.94), rgba(237,244,251,0.76));
    box-shadow:
        0 10px 26px rgba(7, 25, 50, 0.055),
        inset 0 1px 0 rgba(255,255,255,0.9);
    backdrop-filter: blur(8px);
    overflow: hidden;
}

.about-process-item::before {
    content: "";
    position: absolute;
    left: 20px;
    top: 20px;
    width: 24px;
    height: 24px;
    border-radius: 7px;
    background: linear-gradient(135deg, var(--blue), #4b91ff);
    box-shadow: 0 7px 16px rgba(7, 88, 255, 0.20);
}

.about-process-item::after {
    content: "";
    position: absolute;
    width: 90px;
    height: 90px;
    right: -48px;
    bottom: -50px;
    border: 1px solid rgba(7, 88, 255, 0.10);
    border-radius: 50%;
}

.about-process-item span {
    position: absolute;
    left: 26px;
    top: 24px;
    z-index: 1;
    color: #fff;
    font-size: 10px;
    font-weight: 800;
    line-height: 1;
}

.about-process-item strong,
.about-process-item small {
    display: block;
}

.about-process-item strong {
    color: var(--ink);
    font-size: 15px;
    line-height: 1.25;
}

.about-process-item small {
    margin-top: 5px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.35;
}

@media (max-width: 900px) {
    .about-process {
        grid-template-columns: 1fr;
    }

    .about-process-item {
        min-height: 84px;
    }
}

@media (max-width: 520px) {
    .about-grid h2::after,
    .tonhe-copy h2::after {
        width: 68px;
    }

    .about-grid h2::before,
    .tonhe-copy h2::before {
        left: 58px;
    }

    .about-process {
        gap: 10px;
    }

    .about-process-item {
        padding-left: 54px;
    }
}.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(4px);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 14px;
    font-weight: 700;
    color: var(--muted);
    cursor: pointer;
    transition: border-color var(--transition), color var(--transition), background var(--transition);
    user-select: none;
}

.lang-switch:hover {
    border-color: var(--blue);
    color: var(--ink);
    background: rgba(255, 255, 255, 0.85);
}

.lang-opt {
    padding: 2px 6px;
    border-radius: 4px;
    transition: background var(--transition), color var(--transition);
}

.lang-opt.active {
    color: var(--blue);
    background: rgba(7, 88, 255, 0.12);
}

.lang-divider {
    color: var(--muted);
    margin: 0 2px;
}

/* Адаптация для мобильных */
@media (max-width: 900px) {
    .lang-switch {
        font-size: 13px;
        padding: 4px 8px;
        gap: 2px;
    }
}

@media (max-width: 520px) {
    .lang-switch {
        font-size: 12px;
        padding: 4px 6px;
        border-radius: 4px;
    }
    .lang-opt {
        padding: 1px 4px;
    }
}
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}
/* ===== Блок связи с WhatsApp ===== */
.contact-cta {
    padding: 72px 0 64px;
    background:
        radial-gradient(circle at 10% 20%, rgba(7, 88, 255, 0.08), transparent 30%),
        radial-gradient(circle at 90% 70%, rgba(37, 211, 102, 0.10), transparent 30%),
        linear-gradient(135deg, #f8fafc 0%, #eef3f8 100%);
    position: relative;
    isolation: isolate;
    overflow: hidden;
}

.contact-cta::before {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    right: -100px;
    top: -120px;
    border: 1px solid rgba(37, 211, 102, 0.15);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.contact-cta .container {
    position: relative;
    z-index: 2;
}

.contact-cta-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 40px;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(215, 225, 238, 0.9);
    border-radius: 16px;
    padding: 40px 48px;
    box-shadow: 0 18px 45px rgba(7, 25, 50, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.contact-cta-text h2 {
    font-size: clamp(24px, 3vw, 36px);
    margin-bottom: 8px;
    color: var(--ink);
}

.contact-cta-text p {
    color: var(--muted);
    font-size: 16px;
    max-width: 520px;
}

.contact-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #25D366;
    color: #fff;
    border: 0;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 800;
    font-size: 16px;
    text-decoration: none;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    box-shadow: 0 14px 30px rgba(37, 211, 102, 0.30);
    white-space: nowrap;
}

.contact-cta-btn:hover {
    transform: translateY(-2px);
    background: #20b85a;
    box-shadow: 0 18px 36px rgba(37, 211, 102, 0.40);
}

.contact-cta-btn:active {
    transform: scale(0.97);
}

.contact-cta-btn svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
    flex-shrink: 0;
}

/* Адаптив */
@media (max-width: 760px) {
    .contact-cta {
        padding: 56px 0 48px;
    }

    .contact-cta-grid {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 30px 24px;
        gap: 24px;
    }

    .contact-cta-text p {
        max-width: 100%;
        margin: 0 auto;
    }

    .contact-cta-btn {
        justify-content: center;
        width: 100%;
        padding: 14px 20px;
        font-size: 15px;
    }

    .contact-cta-btn svg {
        width: 24px;
        height: 24px;
    }
}

@media (max-width: 520px) {
    .contact-cta-grid {
        padding: 24px 16px;
        border-radius: 12px;
    }
}