/* Base palette */
:root {
    --color-primary: #0F3D5E;
    --color-accent: #00AEEF;
    --color-hover: #082F49;
    --color-bg: #F6FAFC;
    --color-card: #FFFFFF;
    --color-text: #111827;
    --color-text-muted: #64748B;
    --color-border: #E2E8F0;
    --color-success: #16A34A;
    --color-warning: #F59E0B;
    --color-error: #DC2626;
    --shadow: 0 18px 45px rgba(15, 61, 94, 0.10);
    --radius: 20px;
    --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }
.site-main { min-height: 60vh; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
}
.header-inner { min-height: 78px; display: flex; align-items: center; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--color-primary); }
.logo-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: var(--color-primary); color: #fff; }
.logo-text { font-size: 21px; letter-spacing: -0.02em; }
.main-nav { display: flex; align-items: center; gap: 18px; margin-left: auto; }
.nav-link { color: var(--color-text); font-weight: 600; padding: 26px 0; cursor: pointer; }
.nav-link:hover, .nav-link.is-active { color: var(--color-accent); }
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 190px;
    background: var(--color-card);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 10px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: 0.2s ease;
}
.nav-dropdown:hover .nav-dropdown-menu { opacity: 1; pointer-events: auto; transform: translateY(0); }
.nav-dropdown-menu a { display: block; padding: 10px 12px; border-radius: 10px; color: var(--color-text); }
.nav-dropdown-menu a:hover { background: var(--color-bg); color: var(--color-primary); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-phone { font-weight: 700; color: var(--color-primary); white-space: nowrap; }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--color-border); background: #fff; border-radius: 12px; padding: 9px; }
.nav-toggle span { display: block; height: 2px; background: var(--color-primary); margin: 5px 0; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 12px 22px;
    border-radius: 12px;
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 700;
    transition: 0.2s ease;
    text-align: center;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-hover); }
.btn-secondary { background: #fff; border-color: var(--color-primary); color: var(--color-primary); }
.btn-secondary:hover { background: var(--color-bg); border-color: var(--color-hover); color: var(--color-hover); }
.btn-small { min-height: 40px; padding: 9px 16px; font-size: 14px; }
.btn-large { width: 100%; max-width: 340px; min-height: 54px; font-size: 17px; }
.btn-block { width: 100%; }

.hero-section { padding: 70px 0 42px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; align-items: center; gap: 40px; }
.eyebrow { display: inline-flex; color: var(--color-accent); font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; font-size: 13px; margin-bottom: 12px; }
h1, h2, h3 { margin: 0 0 14px; line-height: 1.16; color: var(--color-text); }
h1 { font-size: clamp(34px, 5vw, 58px); letter-spacing: -0.04em; }
h2 { font-size: clamp(26px, 3vw, 38px); letter-spacing: -0.03em; }
h3 { font-size: 20px; }
p { margin: 0 0 16px; color: var(--color-text-muted); }
.hero-content p { font-size: 18px; max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.placeholder-box {
    min-height: 250px;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    background: linear-gradient(135deg, #fff, var(--color-bg));
    display: grid;
    place-items: center;
    color: var(--color-text-muted);
    text-align: center;
    padding: 24px;
}
.placeholder-box--large { min-height: 420px; box-shadow: var(--shadow); }

.section { padding: 64px 0; }
.section-muted { background: #fff; }
.section-head { max-width: 720px; margin-bottom: 30px; }
.section-head-row { max-width: none; display: flex; justify-content: space-between; align-items: end; gap: 20px; }
.link-more { color: var(--color-primary); font-weight: 800; }
.link-more:hover { color: var(--color-accent); }

.brand-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.brand-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 26px;
    box-shadow: 0 10px 25px rgba(15, 61, 94, 0.05);
    transition: 0.2s ease;
}
.brand-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(0, 174, 239, 0.35); }
.brand-logo-placeholder {
    height: 86px;
    border-radius: 16px;
    background: var(--color-bg);
    color: var(--color-primary);
    display: grid;
    place-items: center;
    font-weight: 900;
    font-size: 24px;
    margin-bottom: 18px;
}
.brand-card span { color: var(--color-accent); font-weight: 800; }

.promo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
.promo-content { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 34px; }
.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.advantage-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: 18px; padding: 24px; }
.advantage-card span { display: inline-flex; margin-bottom: 14px; color: var(--color-accent); font-weight: 900; }

.page-hero { padding: 62px 0 38px; background: linear-gradient(135deg, #fff, var(--color-bg)); border-bottom: 1px solid var(--color-border); }
.page-hero p { max-width: 760px; font-size: 18px; }
.brand-hero-grid { display: grid; grid-template-columns: 1fr 360px; gap: 30px; align-items: center; }

.catalog-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: end;
    padding: 18px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 28px;
}
.catalog-toolbar label { display: grid; gap: 7px; min-width: 210px; }
.catalog-toolbar span, .order-form span { color: var(--color-text); font-weight: 700; font-size: 14px; }
select, input, textarea {
    width: 100%;
    border: 1px solid var(--color-border);
    background: #fff;
    border-radius: 12px;
    padding: 12px 14px;
    outline: none;
    color: var(--color-text);
}
select:focus, input:focus, textarea:focus { border-color: var(--color-accent); box-shadow: 0 0 0 4px rgba(0, 174, 239, 0.12); }

.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 10px 26px rgba(15, 61, 94, 0.05);
    display: flex;
    flex-direction: column;
}
.product-card-image { height: 220px; background: var(--color-bg); display: grid; place-items: center; color: var(--color-text-muted); }
.product-card-image img { width: 100%; height: 100%; object-fit: contain; padding: 16px; }
.product-card-body { padding: 18px; display: flex; flex-direction: column; flex: 1; }
.product-brand { color: var(--color-accent); font-size: 13px; font-weight: 900; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 8px; }
.product-title { font-size: 18px; margin-bottom: 14px; }
.product-title a:hover { color: var(--color-primary); }
.product-meta { margin-top: auto; display: grid; gap: 8px; }
.product-price { font-size: 20px; font-weight: 900; color: var(--color-primary); }
.product-price--empty { font-size: 16px; }
.availability { display: inline-flex; width: fit-content; padding: 5px 10px; border-radius: 999px; background: var(--color-bg); color: var(--color-text-muted); font-size: 13px; font-weight: 800; }
.availability.is-available { color: var(--color-success); background: rgba(22, 163, 74, 0.1); }
.availability.is-preorder { color: var(--color-warning); background: rgba(245, 158, 11, 0.12); }
.availability.is-unavailable { color: var(--color-text-muted); }
.product-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.product-card--placeholder .btn { pointer-events: none; }

.empty-state {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 34px;
    text-align: center;
}
.empty-state .placeholder-box { margin-top: 20px; }

.product-layout { display: grid; grid-template-columns: 1fr 0.85fr; gap: 42px; align-items: start; }
.product-main-image { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); min-height: 470px; display: grid; place-items: center; overflow: hidden; }
.product-main-image img { width: 100%; height: 100%; object-fit: contain; padding: 22px; }
.product-thumbs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-top: 14px; }
.product-thumbs img { height: 86px; width: 100%; object-fit: contain; background: #fff; border: 1px solid var(--color-border); border-radius: 12px; padding: 8px; }
.product-info { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.product-info h1 { font-size: clamp(28px, 3vw, 42px); }
.product-buy-box { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin: 20px 0; }
.product-page-price { font-size: 34px; font-weight: 900; color: var(--color-primary); }
.short-description { color: var(--color-text-muted); margin-bottom: 24px; }
.product-details-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; align-items: start; }
.content-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 30px; }
.content-card--empty { min-height: 250px; }
.html-description :first-child { margin-top: 0; }
.html-description img { border-radius: 16px; margin: 18px 0; }
.characteristics-table { width: 100%; border-collapse: collapse; }
.characteristics-table th, .characteristics-table td { padding: 13px 0; border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.characteristics-table th { width: 45%; color: var(--color-text-muted); font-weight: 700; }
.clean-list { margin: 0; padding-left: 20px; color: var(--color-text-muted); }
.clean-list li { margin: 8px 0; }

.site-footer { background: var(--color-primary); color: #fff; padding: 48px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 28px; }
.footer-logo { color: #fff; margin-bottom: 14px; }
.footer-logo .logo-mark { background: var(--color-accent); }
.footer-text { color: rgba(255,255,255,0.72); }
.footer-title { color: #fff; font-size: 17px; margin-bottom: 12px; }
.site-footer a, .site-footer span { display: block; color: rgba(255,255,255,0.78); margin: 7px 0; }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.14); margin-top: 30px; padding-top: 18px; }
.footer-bottom span { color: rgba(255,255,255,0.6); }
site-footer .footer-credit {
    display: inline-block;
    width: fit-content;
    color: rgba(255,255,255,0.52);
    font-size: 13px;
    font-weight: 300;
    letter-spacing: 0.01em;
    margin-top: 6px;
}
.site-footer .footer-credit:hover { color: rgba(255,255,255,0.76); }
.modal { position: fixed; inset: 0; z-index: 100; display: none; }
.modal.is-open { display: block; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(8, 47, 73, 0.62); }
.modal-dialog {
    position: relative;
    width: min(560px, calc(100% - 28px));
    max-height: calc(100vh - 40px);
    overflow: auto;
    margin: 28px auto;
    background: #fff;
    border-radius: 22px;
    padding: 30px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.28);
}
.modal-close { position: absolute; top: 14px; right: 16px; width: 38px; height: 38px; border: 0; border-radius: 50%; background: var(--color-bg); color: var(--color-primary); font-size: 25px; cursor: pointer; }
.modal-subtitle { margin-top: -6px; }
.order-form { display: grid; gap: 14px; }
.order-form label { display: grid; gap: 7px; }
.form-message { min-height: 22px; margin: 4px 0 0; font-weight: 700; }
.form-message.is-success { color: var(--color-success); }
.form-message.is-error { color: var(--color-error); }

@media (max-width: 1024px) {
    .header-actions { display: none; }
    .hero-grid, .promo-grid, .product-layout, .product-details-grid, .brand-hero-grid { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
    .nav-toggle { display: block; margin-left: auto; }
    .main-nav {
        position: absolute;
        top: 100%;
        left: 16px;
        right: 16px;
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: 18px;
        box-shadow: var(--shadow);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
        margin: 0;
    }
    .main-nav.is-open { display: flex; }
    .nav-link { padding: 12px; }
    .nav-dropdown-menu { position: static; opacity: 1; pointer-events: auto; transform: none; box-shadow: none; border: 0; padding: 0 0 0 12px; }
    .brand-grid, .product-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
    .container { width: min(var(--container), calc(100% - 24px)); }
    .header-inner { min-height: 68px; }
    .hero-section, .section { padding: 42px 0; }
    .brand-grid, .product-grid, .advantages-grid, .footer-grid { grid-template-columns: 1fr; }
    .product-actions { grid-template-columns: 1fr; }
    .catalog-toolbar { display: grid; }
    .catalog-toolbar label { min-width: 0; }
    .product-main-image { min-height: 310px; }
    .product-thumbs { grid-template-columns: repeat(3, 1fr); }
    .section-head-row { align-items: start; flex-direction: column; }
}

.notice {
  margin: 18px 0;
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  background: #fff;
}
.notice p { margin: 0 0 8px; }
.notice p:last-child { margin-bottom: 0; }
.notice-success { border-color: rgba(22, 163, 74, .25); background: rgba(22, 163, 74, .08); }
.notice-error { border-color: rgba(220, 38, 38, .25); background: rgba(220, 38, 38, .08); }

/* ===== Premium redesign update ===== */
:root {
    --color-deep: #061F33;
    --color-deep-2: #082F49;
    --color-ice: #EAF8FF;
    --color-ice-2: #F0FBFF;
    --shadow-strong: 0 28px 80px rgba(6, 31, 51, 0.18);
}

.site-header--dark {
    background: linear-gradient(135deg, var(--color-deep), var(--color-primary));
    border-bottom: 1px solid rgba(255,255,255,0.10);
    box-shadow: 0 14px 45px rgba(6, 31, 51, 0.24);
    backdrop-filter: none;
}
.site-header--dark .header-inner { min-height: 82px; }
.header-left { display: flex; align-items: center; gap: 18px; }
.site-header--dark .logo { color: #fff; }
.site-header--dark .logo-mark { background: rgba(0, 174, 239, 0.18); color: #fff; border: 1px solid rgba(255,255,255,0.14); }
.header-catalog-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 18px;
    border-radius: 999px;
    background: var(--color-accent);
    color: #fff;
    font-weight: 900;
    box-shadow: 0 12px 30px rgba(0, 174, 239, 0.24);
}
.header-catalog-btn:hover { background: #19C2FF; transform: translateY(-1px); }
.site-header--dark .nav-link { color: rgba(255,255,255,0.82); }
.site-header--dark .nav-link:hover,
.site-header--dark .nav-link.is-active { color: #fff; }
.site-header--dark .header-phone { color: #fff; }
.site-header--dark .nav-toggle { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.18); }
.site-header--dark .nav-toggle span { background: #fff; }
.btn-accent { background: var(--color-accent); color: #fff; }
.btn-accent:hover { background: #19C2FF; }
.btn-light { background: rgba(255,255,255,0.94); color: var(--color-deep); border-color: rgba(255,255,255,0.35); }
.btn-light:hover { background: #fff; transform: translateY(-1px); }

.home-hero {
    min-height: calc(100vh - 82px);
    display: flex;
    align-items: center;
    background:
        radial-gradient(circle at 80% 20%, rgba(0,174,239,0.38), transparent 34%),
        radial-gradient(circle at 20% 80%, rgba(234,248,255,0.17), transparent 36%),
        linear-gradient(135deg, var(--color-deep), var(--color-primary) 56%, var(--color-deep-2));
    color: #fff;
    padding: 78px 0;
    position: relative;
    overflow: hidden;
}
.home-hero::after {
    content: '';
    position: absolute;
    inset: auto -120px -180px auto;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: rgba(0, 174, 239, 0.14);
    filter: blur(6px);
}
.home-hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 46px; align-items: center; position: relative; z-index: 1; }
.home-hero h1 { color: #fff; font-size: clamp(42px, 6vw, 76px); max-width: 760px; }
.home-hero p { color: rgba(255,255,255,0.78); font-size: 20px; max-width: 680px; }
.eyebrow-light { color: #7FE0FF; }
.hero-visual-card {
    border: 1px solid rgba(255,255,255,0.16);
    border-radius: 34px;
    padding: 18px;
    background: rgba(255,255,255,0.08);
    box-shadow: var(--shadow-strong);
    backdrop-filter: blur(10px);
}
.hero-image-placeholder {
    min-height: 520px;
    display: grid;
    place-items: center;
    text-align: center;
    color: rgba(255,255,255,0.75);
    border: 2px dashed rgba(255,255,255,0.22);
    border-radius: 26px;
    background: linear-gradient(135deg, rgba(255,255,255,0.10), rgba(0,174,239,0.08));
    padding: 28px;
}
.intro-section { background: var(--color-card); }
.intro-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: start; }
.intro-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.brand-logo-section { background: var(--color-ice-2); }
.brand-logo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.brand-logo-tile {
    min-height: 190px;
    border-radius: 30px;
    background: linear-gradient(135deg, #fff, var(--color-ice));
    border: 1px solid rgba(0, 174, 239, .20);
    box-shadow: 0 16px 45px rgba(15, 61, 94, .08);
    display: grid;
    place-items: center;
    transition: .22s ease;
}
.brand-logo-tile span { font-size: clamp(34px, 4.5vw, 62px); font-weight: 950; letter-spacing: -.04em; color: var(--color-primary); }
.brand-logo-tile:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(0, 174, 239, .45); }
.section-soft { background: linear-gradient(180deg, var(--color-ice-2), var(--color-bg)); }
.install-card,
.consultation-card,
.request-card--dark {
    border-radius: 32px;
    padding: clamp(28px, 4vw, 52px);
    background: linear-gradient(135deg, var(--color-deep), var(--color-primary));
    color: #fff;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 26px;
    align-items: center;
    box-shadow: var(--shadow-strong);
    overflow: hidden;
    position: relative;
}
.install-card::after,
.consultation-card::after,
.request-card--dark::after {
    content:'';
    position:absolute;
    width:260px;
    height:260px;
    border-radius:50%;
    right:-80px;
    bottom:-110px;
    background:rgba(0,174,239,.22);
}
.install-card > *, .consultation-card > *, .request-card--dark > * { position: relative; z-index: 1; }
.install-card h2,
.consultation-card h2,
.request-card--dark h2 { color: #fff; }
.install-card p,
.consultation-card p,
.request-card--dark p { color: rgba(255,255,255,.76); max-width: 760px; }
.request-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 28px;
    padding: 36px;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 24px;
    box-shadow: 0 14px 38px rgba(15, 61, 94, .07);
}

.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 20px; color: var(--color-text-muted); font-size: 14px; }
.breadcrumbs a { color: var(--color-primary); font-weight: 800; }
.breadcrumbs a:hover { color: var(--color-accent); }
.product-top { background: linear-gradient(180deg, var(--color-ice-2), var(--color-bg)); }
.product-page-title { max-width: 980px; margin-bottom: 30px; color: var(--color-text); }
.product-layout-updated { align-items: stretch; }
.product-main-image { cursor: zoom-in; border: 0; box-shadow: 0 18px 50px rgba(15,61,94,.08); }
button.product-main-image { width: 100%; padding: 0; }
.product-info-updated { display: flex; flex-direction: column; justify-content: center; }
.product-thumb { border: 1px solid var(--color-border); background: #fff; border-radius: 14px; padding: 0; cursor: pointer; transition: .2s ease; }
.product-thumb:hover,
.product-thumb.is-active { border-color: var(--color-accent); box-shadow: 0 0 0 4px rgba(0,174,239,.12); }
.product-thumbs img { border: 0; }
.characteristics-table th,
.characteristics-table td { padding: 15px 0; }
.characteristics-table td { padding-left: 28px; color: var(--color-text); font-weight: 650; }
.consultation-section { padding-top: 0; background: var(--color-bg); }
.related-section { background: #fff; }

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(3, 18, 30, .92);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 72px 90px;
}
.lightbox.is-open { display: flex; }
.lightbox img { max-width: 100%; max-height: calc(100vh - 130px); object-fit: contain; background: #fff; border-radius: 18px; padding: 14px; }
.lightbox-close,
.lightbox-arrow {
    position: absolute;
    border: 0;
    color: #fff;
    background: rgba(255,255,255,.12);
    cursor: pointer;
    display: grid;
    place-items: center;
}
.lightbox-close { top: 22px; right: 28px; width: 48px; height: 48px; border-radius: 50%; font-size: 32px; }
.lightbox-arrow { top: 50%; transform: translateY(-50%); width: 54px; height: 74px; border-radius: 18px; font-size: 54px; line-height: 1; }
.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }
.lightbox-close:hover,
.lightbox-arrow:hover { background: var(--color-accent); }

.brand-page-hero {
    padding: 42px 0 52px;
    background: linear-gradient(180deg, var(--color-ice-2), var(--color-bg));
}
.brand-page-card {
    border-radius: 34px;
    padding: clamp(30px, 5vw, 58px);
    color: #fff;
    background:
        radial-gradient(circle at 82% 18%, rgba(0,174,239,.34), transparent 32%),
        linear-gradient(135deg, var(--color-deep), var(--color-primary));
    box-shadow: var(--shadow-strong);
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 34px;
    align-items: center;
}
.brand-page-card h1 { color: #fff; }
.brand-page-card p { color: rgba(255,255,255,.74); font-size: 18px; max-width: 760px; }
.brand-hero-logo {
    min-height: 210px;
    border-radius: 28px;
    display: grid;
    place-items: center;
    background: rgba(255,255,255,.10);
    border: 1px solid rgba(255,255,255,.18);
}
.brand-hero-logo span { color: #fff; font-size: clamp(36px, 4vw, 58px); font-weight: 950; letter-spacing: -.04em; }
.text-page-card { max-width: 900px; }

@media (max-width: 1024px) {
    .home-hero-grid, .intro-grid, .brand-page-card { grid-template-columns: 1fr; }
    .install-card, .consultation-card, .request-card, .request-card--dark { grid-template-columns: 1fr; }
    .brand-hero-logo { min-height: 160px; }
}
@media (max-width: 820px) {
    .site-header--dark .main-nav { background: var(--color-deep); border-color: rgba(255,255,255,.12); }
    .brand-logo-grid { grid-template-columns: 1fr; }
    .home-hero { min-height: auto; padding: 58px 0; }
    .hero-image-placeholder { min-height: 340px; }
    .lightbox { padding: 70px 18px; }
    .lightbox-arrow { width: 44px; height: 58px; font-size: 42px; }
    .lightbox-prev { left: 10px; }
    .lightbox-next { right: 10px; }
}
@media (max-width: 560px) {
    .header-catalog-btn { display: none; }
    .home-hero h1 { font-size: 38px; }
    .brand-logo-tile { min-height: 142px; }
    .request-card { padding: 26px; }
    .characteristics-table th,
    .characteristics-table td { display: block; width: 100%; padding-left: 0; }
    .characteristics-table th { padding-bottom: 2px; border-bottom: 0; }
    .characteristics-table td { padding-top: 0; }
}

/* Product page refinement: compact info column + tabs */
.product-layout-compact { align-items: start !important; }
.product-layout-compact .product-gallery,
.product-layout-compact .product-info-updated { align-self: start; }
.product-info-updated { justify-content: flex-start !important; min-height: 0; }
.product-info-updated::before,
.product-info-updated::after { content: none !important; display: none !important; }
.product-info-updated { padding: 32px; }
.product-info-updated .btn-large { width: min(320px, 100%); }

.product-tabs-section { padding-top: 34px; }
.product-tabs { display: grid; gap: 18px; }
.product-tabs-nav {
    display: inline-flex;
    width: fit-content;
    gap: 8px;
    padding: 7px;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: #fff;
    box-shadow: 0 12px 34px rgba(15,61,94,.06);
}
.product-tab-btn {
    border: 0;
    border-radius: 999px;
    padding: 13px 24px;
    background: transparent;
    color: var(--color-text-muted);
    font-weight: 900;
    cursor: pointer;
    transition: .2s ease;
}
.product-tab-btn:hover { color: var(--color-primary); background: var(--color-ice-2); }
.product-tab-btn.is-active { color: #fff; background: var(--color-primary); box-shadow: 0 10px 24px rgba(15,61,94,.20); }
.product-tab-panel { display: none; }
.product-tab-panel.is-active { display: block; }
.html-description-full { width: 100%; max-width: none; }
.html-description-full img { max-width: 100%; height: auto; }
.characteristics-table-compact { max-width: 720px; }
.characteristics-table-compact th { width: 48%; }
.characteristics-table-compact td { padding-left: 34px !important; }

@media (max-width: 820px) {
    .product-tabs-nav { width: 100%; display: grid; grid-template-columns: 1fr 1fr; border-radius: 22px; }
    .product-tab-btn { border-radius: 16px; padding: 12px 14px; }
    .characteristics-table-compact { max-width: 100%; }
}

/* === Product page fix v2: remove empty card space + working tabs view === */
.product-layout,
.product-layout-updated,
.product-layout-compact {
    align-items: start !important;
}
.product-layout-compact .product-gallery,
.product-layout-compact .product-info,
.product-layout-compact .product-info-updated {
    align-self: start !important;
}
.product-info-updated {
    display: block !important;
    height: auto !important;
    min-height: 0 !important;
    justify-content: flex-start !important;
    padding: 34px !important;
}
.product-info-updated::before,
.product-info-updated::after {
    display: none !important;
    content: none !important;
}
.product-info-updated .product-brand {
    display: inline-flex;
    margin-bottom: 18px;
}
.product-info-updated .product-buy-box {
    margin: 14px 0 18px !important;
}
.product-info-updated .short-description {
    margin-bottom: 26px !important;
}
.product-info-updated .btn-large {
    width: min(360px, 100%) !important;
    max-width: none !important;
}
.consultation-section.section {
    padding-top: 26px !important;
    padding-bottom: 28px !important;
}
.product-tabs-section.section {
    padding-top: 28px !important;
    padding-bottom: 62px !important;
}
.product-tabs {
    display: block !important;
}
.product-tabs-nav {
    display: inline-flex !important;
    width: fit-content !important;
    gap: 8px !important;
    padding: 7px !important;
    border: 1px solid var(--color-border) !important;
    border-radius: 999px !important;
    background: #fff !important;
    box-shadow: 0 12px 34px rgba(15,61,94,.06) !important;
    margin-bottom: 18px !important;
}
.product-tab-btn {
    appearance: none !important;
    -webkit-appearance: none !important;
    border: 0 !important;
    border-radius: 999px !important;
    padding: 13px 24px !important;
    background: transparent !important;
    color: var(--color-text-muted) !important;
    font-weight: 900 !important;
    cursor: pointer !important;
    transition: .2s ease !important;
}
.product-tab-btn:hover {
    background: var(--color-ice-2) !important;
    color: var(--color-primary) !important;
}
.product-tab-btn.is-active {
    color: #fff !important;
    background: var(--color-primary) !important;
    box-shadow: 0 10px 24px rgba(15,61,94,.20) !important;
}
.product-tab-panel {
    display: none !important;
}
.product-tab-panel.is-active {
    display: block !important;
}
.product-tab-panel.content-card {
    width: 100% !important;
}
.html-description-full {
    width: 100% !important;
    max-width: none !important;
}
.characteristics-table-compact {
    width: 100% !important;
    max-width: 760px !important;
}
.characteristics-table-compact td {
    padding-left: 34px !important;
}
@media (max-width: 820px) {
    .product-tabs-section.section {
        padding-top: 18px !important;
        padding-bottom: 42px !important;
    }
    .product-tabs-section .container {
        width: calc(100% - 16px) !important;
    }
    .product-tabs-nav {
        display: grid !important;
        width: 100% !important;
        grid-template-columns: 1fr 1fr;
        gap: 6px !important;
        padding: 6px !important;
        border-radius: 22px !important;
        margin-bottom: 12px !important;
    }
    .product-tab-btn {
        border-radius: 16px !important;
        padding: 11px 10px !important;
        font-size: 16px !important;
    }
    .product-tab-panel.content-card {
        padding: 18px !important;
        border-radius: 22px !important;
    }
    .characteristics-table-compact {
        max-width: 100% !important;
        width: 100% !important;
        max-width: none !important;
        table-layout: fixed !important;
    }
    .characteristics-table-compact tr {
        display: grid !important;
        grid-template-columns: minmax(0, 1.05fr) minmax(88px, .95fr) !important;
        column-gap: 10px !important;
        align-items: start !important;
        border-bottom: 1px solid var(--color-border) !important;
        padding: 12px 0 !important;
    }
    .characteristics-table-compact tr:last-child {
        border-bottom: 0 !important;
    }
    .characteristics-table-compact th,
    .characteristics-table-compact td {
        display: block !important;
        width: auto !important;
        border-bottom: 0 !important;
        padding: 0 !important;
        line-height: 1.35 !important;
    }
    .characteristics-table-compact th {
        font-size: 15px !important;
    }
    .characteristics-table-compact td {
        padding-left: 0 !important;
        font-size: 16px !important;
        overflow-wrap: anywhere !important;
    }
}
@media (max-width: 380px) {
    .characteristics-table-compact tr {
        grid-template-columns: 1fr !important;
        row-gap: 4px !important;
    }
}

/* Homepage image update */
.home-hero--image {
    min-height: calc(100vh - 82px);
    background:
        linear-gradient(90deg, rgba(8,47,73,.94) 0%, rgba(8,47,73,.74) 42%, rgba(15,61,94,.34) 100%),
        url('/assets/images/hero-main.jpg') center center / cover no-repeat;
    padding: 0;
    display: flex;
    align-items: center;
    position: relative;
}
.home-hero--image::after { display: none; }
.home-hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 18% 28%, rgba(0,174,239,.24), transparent 28%),
        linear-gradient(180deg, rgba(8,47,73,.12), rgba(8,47,73,.32));
    pointer-events: none;
}
.home-hero-inner {
    position: relative;
    z-index: 1;
    width: 100%;
    padding-top: clamp(80px, 12vh, 150px);
    padding-bottom: clamp(80px, 12vh, 150px);
}
.home-hero--image .home-hero-content {
    max-width: 820px;
}
.home-hero--image h1 {
    max-width: 820px;
    text-shadow: 0 18px 48px rgba(0,0,0,.28);
}
.home-hero--image p {
    max-width: 720px;
    color: rgba(255,255,255,.84);
}
.section-head-center {
    text-align: center;
    justify-content: center;
    margin-bottom: 34px;
}
.brand-logo-section-premium {
    background: linear-gradient(180deg, #fff, var(--color-ice-2));
}
.brand-logo-tile--image {
    min-height: 210px;
    padding: 34px;
    background: rgba(255,255,255,.78);
    backdrop-filter: blur(8px);
}
.brand-logo-tile--image img {
    display: block;
    max-width: 78%;
    max-height: 115px;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: .22s ease;
}
.brand-logo-tile--image:hover img {
    transform: scale(1.04);
}
.intro-section-premium {
    background: #fff;
}
.advantages-section-premium {
    background: var(--color-bg);
}

@media (max-width: 768px) {
    .home-hero--image {
        min-height: auto;
        background:
            linear-gradient(90deg, rgba(8,47,73,.94) 0%, rgba(8,47,73,.74) 42%, rgba(15,61,94,.34) 100%),
            url('/assets/images/banner_mob.jpg') center center / cover no-repeat;
        background-position: center center;
    }
    .home-hero-inner {
        padding-top: 74px;
        padding-bottom: 74px;
    }
    .home-hero--image h1 {
        font-size: 40px;
    }
    .home-hero--image p {
        font-size: 17px;
    }
    .brand-logo-tile--image {
        min-height: 150px;
        padding: 26px;
    }
    .brand-logo-tile--image img {
        max-height: 82px;
    }
}


/* Homepage cleanup v2 */
.home-hero-inner.container {
    width: min(1280px, calc(100% - 96px));
    margin-left: auto;
    margin-right: auto;
}
.home-hero--image .home-hero-content {
    padding-left: 0;
}
.brand-logo-section-premium {
    padding-top: 96px;
}
.brand-logo-section-premium .brand-logo-grid {
    margin-top: 0;
}
@media (max-width: 768px) {
    .home-hero-inner.container {
        width: min(100% - 32px, 1280px);
    }
    .brand-logo-section-premium {
        padding-top: 54px;
    }
}

/* Homepage featured products carousel */
.featured-carousel {
    position: relative;
    margin-top: 26px;
}
.featured-carousel-viewport {
    overflow-x: auto;
    overflow-y: visible;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    padding: 2px 2px 14px;
}
.featured-carousel-viewport::-webkit-scrollbar { display: none; }
.featured-carousel-track {
    display: flex;
    gap: 22px;
    align-items: stretch;
}
.featured-carousel-item {
    flex: 0 0 calc((100% - 66px) / 4);
    min-width: 0;
    scroll-snap-align: start;
}
.featured-carousel-item .product-card { height: 100%; }
.carousel-arrow {
    position: absolute;
    top: 50%;
    z-index: 5;
    width: 48px;
    height: 48px;
    transform: translateY(-50%);
    border-radius: 999px;
    border: 1px solid rgba(0, 174, 239, 0.35);
    background: #ffffff;
    color: var(--color-primary);
    box-shadow: 0 14px 34px rgba(15, 61, 94, 0.16);
    cursor: pointer;
    font-size: 34px;
    line-height: 1;
    display: grid;
    place-items: center;
    transition: 0.2s ease;
}
.carousel-arrow:hover {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}
.carousel-arrow--prev { left: -24px; }
.carousel-arrow--next { right: -24px; }
.carousel-arrow.is-disabled {
    opacity: 0.35;
    cursor: default;
    pointer-events: none;
}

@media (max-width: 1180px) {
    .carousel-arrow--prev { left: 8px; }
    .carousel-arrow--next { right: 8px; }
}
@media (max-width: 980px) {
    .featured-carousel-item { flex-basis: calc((100% - 44px) / 3); }
}
@media (max-width: 720px) {
    .featured-carousel-item { flex-basis: calc((100% - 18px) / 2); }
    .featured-carousel-track { gap: 18px; }
}
@media (max-width: 520px) {
    .featured-carousel-item { flex-basis: 86%; }
    .carousel-arrow { width: 42px; height: 42px; font-size: 28px; }
}

/* Catalog fixes */
.page-hero--catalog p { display: none; }
.catalog-section { padding-top: 48px; }
.catalog-product-grid .product-card-image,
.product-grid .product-card-image {
    position: relative;
    overflow: hidden;
    height: 250px;
    min-height: 250px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}
.catalog-product-grid .product-card-image img,
.product-grid .product-card-image img {
    display: block;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    padding: 18px;
}
.product-card-body {
    position: relative;
    z-index: 2;
    background: #fff;
}
.product-title {
    min-height: 48px;
}

/* Brand pages update */
.brand-page-card--with-logo {
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
}
.brand-page-content p {
    line-height: 1.7;
    max-width: 820px;
}
.brand-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}
.brand-hero-logo--image {
    background: rgba(255, 255, 255, .94);
    border: 1px solid rgba(255, 255, 255, .45);
    box-shadow: 0 18px 60px rgba(0, 0, 0, .16);
    padding: 34px;
    overflow: hidden;
}
.brand-hero-logo--image img {
    display: block;
    width: 100%;
    max-width: 260px;
    max-height: 130px;
    object-fit: contain;
}
.brand-hero-logo--image span {
    display: none;
}
.brand-hero-logo--image img[src=""],
.brand-hero-logo--image img:not([src]) {
    display: none;
}
.brand-hero-logo--image img[src=""] + span,
.brand-hero-logo--image img:not([src]) + span {
    display: block;
    color: var(--color-primary);
}

@media (max-width: 1024px) {
    .brand-page-card--with-logo {
        grid-template-columns: 1fr;
    }
    .brand-hero-logo--image {
        min-height: 170px;
    }
}

/* Brand pages fix v2 */
.brand-page-card--with-logo .brand-page-content p {
    font-size: 18px;
    line-height: 1.72;
    color: rgba(255, 255, 255, .78);
    max-width: 820px;
}
.brand-hero-logo--image {
    background: #fff;
    min-height: 230px;
}
.brand-hero-logo--image img {
    width: 100%;
    height: 150px;
    max-width: 320px;
    max-height: 150px;
    object-fit: contain;
    object-position: center;
}
.logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    display: block;
    max-height: 52px;
    width: auto;
    height: auto;
}

.site-footer .logo-image {
    max-height: 48px;
}

@media (max-width: 768px) {
    .site-header .logo-image {
        max-height: 46px;
        width: auto;
    }

    .site-footer .logo-image {
        max-height: 42px;
        width: auto;
    }
}