/*
 * BKS · Service Fuel
 * Стили для раздела «Ремонт топливной аппаратуры» (category_id=434 + 6 подкатегорий)
 * Подключается на /servis/remont-toplivnoy-apparatury/* через uni_new_data.php
 *
 * Зависимости:
 *   - SVG-спрайт: /image/icons/service/sprite.svg
 *   - SVG-разрезы: /image/svg/service-fuel/*.svg
 *   - JS: catalog/view/theme/unishop2/js/bks_service_fuel.js
 */

:root {
    --bksfs-bg: #FFFFFF;
    --bksfs-surface: #F7F8F8;
    --bksfs-surface-2: #EEF3F2;
    --bksfs-border: #E3E6E6;
    --bksfs-text: #2A2A2A;
    --bksfs-text-muted: #6E7479;
    --bksfs-accent: #1F857F;
    --bksfs-accent-hover: #146B66;
    --bksfs-accent-soft: #E6F1F0;
    --bksfs-dark: #2C5C58;
    --bksfs-dark-2: #3F706B;
    --bksfs-success: #1F8F4D;
    --bksfs-warning: #B36B00;
    --bksfs-radius-sm: 6px;
    --bksfs-radius-md: 12px;
    --bksfs-radius-lg: 20px;
    --bksfs-shadow-sm: 0 1px 2px rgba(20, 60, 58, 0.05), 0 1px 1px rgba(0, 0, 0, 0.03);
    --bksfs-shadow-md: 0 6px 18px rgba(20, 60, 58, 0.07), 0 2px 4px rgba(0, 0, 0, 0.03);
    --bksfs-shadow-lg: 0 18px 48px rgba(20, 60, 58, 0.10);
    --bksfs-gap: 24px;
}

.bks-fs {
    color: var(--bksfs-text);
    font-size: 16px;
    line-height: 1.55;
    text-align: left;
}
.bks-fs * { box-sizing: border-box; }
.bks-fs p { margin: 0 0 1em; }
.bks-fs h2, .bks-fs__h2 { font-size: 32px; line-height: 1.2; font-weight: 700; margin: 56px 0 16px; color: var(--bksfs-text); }
.bks-fs h3, .bks-fs__h3 { font-size: 22px; line-height: 1.3; font-weight: 700; margin: 32px 0 12px; color: var(--bksfs-text); }
.bks-fs h4 { font-size: 18px; line-height: 1.35; font-weight: 700; margin: 20px 0 8px; }
.bks-fs__h1 { font-size: 44px; line-height: 1.1; font-weight: 800; margin: 0 0 16px; color: #FFFFFF; }
.bks-fs__section-head { display: block; margin-bottom: 16px; }
.bks-fs__section-head .bks-fs__h2, .bks-fs__section-head h2 { margin-top: 0; }
.bks-fs__lead { font-size: 18px; color: var(--bksfs-text-muted); max-width: 880px; }
.bks-fs__eyebrow { display: inline-block; padding: 6px 12px; border-radius: 999px; background: var(--bksfs-accent-soft); color: var(--bksfs-accent); font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 12px; }
.bks-fs__icon { width: 24px; height: 24px; flex-shrink: 0; vertical-align: middle; }
.bks-fs svg use { pointer-events: none; }
.bks-fs__icon--lg { width: 40px; height: 40px; }
.bks-fs__icon--xl { width: 56px; height: 56px; }
.bks-fs__section { margin: 56px 0; }
.bks-fs ul { padding-left: 1.25em; margin: 0 0 1em; }
.bks-fs ul li { margin-bottom: 6px; }
.bks-fs a:not(.bks-fs__btn):not(.bks-fs__subcat):not(.bks-fs__related-link) { color: var(--bksfs-accent); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color .15s ease; }
.bks-fs a:not(.bks-fs__btn):not(.bks-fs__subcat):not(.bks-fs__related-link):hover { border-bottom-color: var(--bksfs-accent); }

/* ---------------- HERO ---------------- */
.bks-fs__hero {
    background: var(--bksfs-surface);
    color: var(--bksfs-text);
    border: 1px solid var(--bksfs-border);
    border-radius: var(--bksfs-radius-lg);
    padding: 48px 40px;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}
.bks-fs__hero::before {
    content: "";
    position: absolute; right: -120px; top: -120px;
    width: 360px; height: 360px;
    background: radial-gradient(circle at center, var(--bksfs-accent-soft) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}
.bks-fs__hero-inner { position: relative; z-index: 1; max-width: 760px; }
.bks-fs__hero-eyebrow { display: inline-block; padding: 6px 12px; border-radius: 999px; background: var(--bksfs-accent-soft); color: var(--bksfs-accent); font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 20px; }
.bks-fs__hero h1, .bks-fs__hero .bks-fs__h1 { display: none; }
.bks-fs__hero-subtitle { font-size: 20px; line-height: 1.45; color: var(--bksfs-text); margin-bottom: 28px; max-width: 760px; font-weight: 500; }
.bks-fs__hero-usp { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; }
.bks-fs__hero-usp-item { display: inline-flex; align-items: center; gap: 8px; background: #FFFFFF; border: 1px solid var(--bksfs-border); padding: 10px 14px; border-radius: 999px; font-size: 14px; font-weight: 500; color: var(--bksfs-text); }
.bks-fs__hero-usp-item .bks-fs__icon { color: var(--bksfs-accent); }
.bks-fs__hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }

/* HERO with image: image as full-bleed background, text on light overlay */
.bks-fs__hero--with-image { position: relative; overflow: hidden; }
.bks-fs__hero--with-image::before { display: none; }
.bks-fs__hero--with-image .bks-fs__hero-inner { position: relative; z-index: 2; max-width: 62%; }
.bks-fs__hero--with-image .bks-fs__hero-subtitle { max-width: none; overflow-wrap: break-word; }
.bks-fs__hero-media { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.bks-fs__hero-media img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: right center; }
.bks-fs__hero-media::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(
        to right,
        var(--bksfs-surface) 0%,
        var(--bksfs-surface) 38%,
        rgba(247, 248, 248, 0.85) 52%,
        rgba(247, 248, 248, 0.45) 68%,
        rgba(247, 248, 248, 0.18) 82%,
        rgba(247, 248, 248, 0) 100%
    );
}

/* ---------------- BUTTONS ---------------- */
.bks-fs .bks-fs__btn,
.bks-fs a.bks-fs__btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 22px; border-radius: 999px; font-weight: 700; font-size: 15px; text-decoration: none; border: 1px solid transparent; transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease, color .15s ease; cursor: pointer; }
.bks-fs .bks-fs__btn:hover,
.bks-fs a.bks-fs__btn:hover { transform: translateY(-1px); border-bottom-color: transparent; }
.bks-fs .bks-fs__btn--primary,
.bks-fs a.bks-fs__btn--primary { background: var(--bksfs-accent); color: #FFFFFF; box-shadow: var(--bksfs-shadow-md); }
.bks-fs .bks-fs__btn--primary:hover,
.bks-fs a.bks-fs__btn--primary:hover { background: var(--bksfs-accent-hover); color: #FFFFFF; }
.bks-fs .bks-fs__btn--ghost,
.bks-fs a.bks-fs__btn--ghost { background: #FFFFFF; border-color: var(--bksfs-border); color: var(--bksfs-text); }
.bks-fs .bks-fs__btn--ghost:hover,
.bks-fs a.bks-fs__btn--ghost:hover { background: var(--bksfs-surface); border-color: var(--bksfs-accent); color: var(--bksfs-accent); }
.bks-fs .bks-fs__btn--outline,
.bks-fs a.bks-fs__btn--outline { background: transparent; border-color: var(--bksfs-text); color: var(--bksfs-text); }
.bks-fs .bks-fs__btn--outline:hover,
.bks-fs a.bks-fs__btn--outline:hover { background: var(--bksfs-text); color: #FFFFFF; }

/* ---------------- KPI TILES ---------------- */
.bks-fs__kpi { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 0 0 40px; }
.bks-fs__kpi-tile { background: var(--bksfs-surface); border: 1px solid var(--bksfs-border); border-radius: var(--bksfs-radius-md); padding: 20px; }
.bks-fs__kpi-tile-num { font-size: 32px; font-weight: 800; color: var(--bksfs-text); line-height: 1.1; }
.bks-fs__kpi-tile-num small { font-size: 18px; opacity: .65; font-weight: 600; }
.bks-fs__kpi-tile-label { font-size: 14px; color: var(--bksfs-text-muted); margin-top: 6px; line-height: 1.3; }

/* ---------------- SYMPTOMS GRID ---------------- */
.bks-fs__symptoms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.bks-fs__symptom { background: #FFFFFF; border: 1px solid var(--bksfs-border); border-radius: var(--bksfs-radius-md); padding: 20px; transition: box-shadow .2s ease, border-color .2s ease; }
.bks-fs__symptom:hover { box-shadow: var(--bksfs-shadow-md); border-color: var(--bksfs-accent); }
.bks-fs__symptom-head { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; }
.bks-fs__symptom-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--bksfs-accent-soft); color: var(--bksfs-accent); display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.bks-fs__symptom-icon .bks-fs__icon { width: 34px; height: 34px; }
.bks-fs__symptom-title { font-size: 15px; font-weight: 700; line-height: 1.3; margin: 0; }
.bks-fs__symptom-text { font-size: 14px; color: var(--bksfs-text-muted); line-height: 1.45; }

/* ---------------- SUBCATEGORY CARDS ---------------- */
.bks-fs__subcats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.bks-fs__subcat { display: block; background: #FFFFFF; border: 1px solid var(--bksfs-border); border-radius: var(--bksfs-radius-md); padding: 24px; transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease; color: var(--bksfs-text); border-bottom: 1px solid var(--bksfs-border); }
.bks-fs__subcat:hover { transform: translateY(-2px); box-shadow: var(--bksfs-shadow-lg); border-color: var(--bksfs-accent); color: var(--bksfs-text); }
.bks-fs__subcat-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--bksfs-accent-soft); color: var(--bksfs-accent); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.bks-fs__subcat-icon .bks-fs__icon { width: 28px; height: 28px; }
.bks-fs__subcat-title { font-size: 18px; font-weight: 700; margin-bottom: 6px; line-height: 1.3; }
.bks-fs__subcat-meta { font-size: 14px; color: var(--bksfs-text-muted); margin-bottom: 12px; }
.bks-fs__subcat-price { font-size: 14px; font-weight: 700; color: var(--bksfs-accent); }
.bks-fs__subcat-arrow { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; margin-top: 14px; color: var(--bksfs-text); opacity: .7; }

/* Subcat with image: smooth diagonal fade-in from top-left (white) to bottom-right (image) */
.bks-fs__subcat--with-image { position: relative; overflow: hidden; padding-top: 32px; min-height: 260px; }
.bks-fs__subcat--with-image > .bks-fs__subcat-icon,
.bks-fs__subcat--with-image > .bks-fs__subcat-title,
.bks-fs__subcat--with-image > .bks-fs__subcat-meta,
.bks-fs__subcat--with-image > .bks-fs__subcat-price,
.bks-fs__subcat--with-image > .bks-fs__subcat-arrow { position: relative; z-index: 2; }
.bks-fs__subcat-media {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
.bks-fs__subcat-media img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: right bottom;
}
.bks-fs__subcat-media::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(
        135deg,
        #FFFFFF 0%,
        #FFFFFF 30%,
        rgba(255, 255, 255, 0.95) 45%,
        rgba(255, 255, 255, 0.78) 60%,
        rgba(255, 255, 255, 0.5) 78%,
        rgba(255, 255, 255, 0.25) 100%
    );
    transition: opacity .25s ease;
}
.bks-fs__subcat--with-image:hover .bks-fs__subcat-media::after {
    background: linear-gradient(
        135deg,
        #FFFFFF 0%,
        rgba(255, 255, 255, 0.95) 28%,
        rgba(255, 255, 255, 0.82) 45%,
        rgba(255, 255, 255, 0.55) 65%,
        rgba(255, 255, 255, 0.25) 85%,
        rgba(255, 255, 255, 0.05) 100%
    );
}

/* ---------------- BRAND PILLS ---------------- */
.bks-fs__brand-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.bks-fs__brand-pill { background: #FFFFFF; border: 1px solid var(--bksfs-border); border-radius: var(--bksfs-radius-sm); padding: 14px 16px; display: flex; align-items: center; justify-content: center; min-height: 82px; color: var(--bksfs-text); text-align: center; transition: border-color .2s ease, box-shadow .2s ease, transform .15s ease; }
.bks-fs__brand-pill:hover { border-color: var(--bksfs-accent); box-shadow: var(--bksfs-shadow-sm); }
.bks-fs__brand-logo { display: block; width: 100%; max-width: 148px; height: 46px; overflow: visible; }
.bks-fs__brand-name { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* ---------------- EQUIPMENT TAGS ---------------- */
.bks-fs__equipment { display: flex; flex-wrap: wrap; gap: 8px; }
.bks-fs__equipment-tag { background: var(--bksfs-surface); border: 1px solid var(--bksfs-border); border-radius: 999px; padding: 8px 14px; font-size: 13px; color: var(--bksfs-text); font-weight: 500; }

/* ---------------- PRICE TABLE ---------------- */
.bks-fs__price-wrap { overflow-x: auto; border: 1px solid var(--bksfs-border); border-radius: var(--bksfs-radius-md); }
.bks-fs__price { width: 100%; border-collapse: collapse; font-size: 14px; }
.bks-fs__price thead { background: var(--bksfs-surface); }
.bks-fs__price th { text-align: left; padding: 14px 16px; font-weight: 700; color: var(--bksfs-text); font-size: 13px; letter-spacing: .5px; text-transform: uppercase; border-bottom: 1px solid var(--bksfs-border); }
.bks-fs__price td { padding: 14px 16px; border-bottom: 1px solid var(--bksfs-border); vertical-align: top; }
.bks-fs__price tr:last-child td { border-bottom: 0; }
.bks-fs__price tr:hover td { background: rgba(0, 109, 105, 0.04); }
.bks-fs__price td.is-num, .bks-fs__price th.is-num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.bks-fs__price-note { font-size: 13px; color: var(--bksfs-text-muted); margin-top: 12px; }

/* ---------------- STEPS ---------------- */
.bks-fs__steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: bksfs-step; }
.bks-fs__step { background: #FFFFFF; border: 1px solid var(--bksfs-border); border-radius: var(--bksfs-radius-md); padding: 24px; position: relative; }
.bks-fs__step-num { position: absolute; top: -14px; left: 24px; width: 40px; height: 40px; background: var(--bksfs-accent); color: #FFFFFF; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; box-shadow: var(--bksfs-shadow-sm); }
.bks-fs__step-title { font-size: 17px; font-weight: 700; margin: 8px 0 8px; line-height: 1.3; }
.bks-fs__step-text { font-size: 14px; color: var(--bksfs-text-muted); line-height: 1.5; }

/* ---------------- CUTAWAY (SVG figure) ---------------- */
.bks-fs__cutaway-wrap { background: var(--bksfs-surface); border: 1px solid var(--bksfs-border); border-radius: var(--bksfs-radius-md); padding: 24px; color: var(--bksfs-accent); }
.bks-fs__cutaway-wrap object, .bks-fs__cutaway-wrap img { display: block; width: 100%; height: auto; max-width: 720px; margin: 0 auto; aspect-ratio: 720 / 480; }
.bks-fs__cutaway-caption { text-align: center; font-size: 14px; color: var(--bksfs-text-muted); margin-top: 12px; }
.bks-fs__cutaway-legend { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; margin: 24px 0 0; padding: 0; list-style: none; counter-reset: bksfs-legend; }
.bks-fs__cutaway-legend-item { counter-increment: bksfs-legend; position: relative; padding: 8px 8px 8px 44px; background: #FFFFFF; border: 1px solid var(--bksfs-border); border-radius: var(--bksfs-radius-sm); }
.bks-fs__cutaway-legend-item::before { content: counter(bksfs-legend, decimal-leading-zero); position: absolute; left: 8px; top: 8px; width: 28px; height: 28px; border-radius: 8px; background: var(--bksfs-accent-soft); color: var(--bksfs-accent); display: inline-flex; align-items: center; justify-content: center; font-weight: 800; font-size: 12px; font-variant-numeric: tabular-nums; }
.bks-fs__cutaway-legend-title { display: block; font-size: 14px; font-weight: 700; color: var(--bksfs-text); line-height: 1.3; }
.bks-fs__cutaway-legend-desc { display: block; font-size: 13px; color: var(--bksfs-text-muted); line-height: 1.45; margin-top: 2px; }

/* ---------------- FAQ ---------------- */
.bks-fs__faq { display: flex; flex-direction: column; gap: 8px; }
.bks-fs__faq-item { background: #FFFFFF; border: 1px solid var(--bksfs-border); border-radius: var(--bksfs-radius-md); overflow: hidden; transition: border-color .2s ease, box-shadow .2s ease; }
.bks-fs__faq-item:hover { border-color: var(--bksfs-accent); }
.bks-fs__faq-item.is-open { box-shadow: var(--bksfs-shadow-sm); }
.bks-fs__faq-q { padding: 18px 24px; font-weight: 700; font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; user-select: none; line-height: 1.35; color: var(--bksfs-text); border-bottom: 1px solid transparent; transition: border-color .2s ease; }
.bks-fs__faq-item.is-open .bks-fs__faq-q { border-bottom-color: var(--bksfs-border); }
.bks-fs__faq-q::after { content: ""; width: 10px; height: 10px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg); transition: transform .25s ease; flex-shrink: 0; opacity: .55; margin-top: -4px; }
.bks-fs__faq-item.is-open .bks-fs__faq-q::after { transform: rotate(-135deg); margin-top: 4px; }
.bks-fs__faq-a { display: none; padding: 16px 24px 20px; color: var(--bksfs-text-muted); font-size: 15px; line-height: 1.6; }
.bks-fs__faq-item.is-open .bks-fs__faq-a { display: block; }
.bks-fs__faq-a p:last-child { margin-bottom: 0; }

/* ---------------- CTA BLOCK ---------------- */
.bks-fs__cta-block { background: var(--bksfs-surface); border: 1px solid var(--bksfs-border); color: var(--bksfs-text); border-radius: var(--bksfs-radius-lg); padding: 40px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 32px; margin: 56px 0; position: relative; overflow: hidden; }
.bks-fs__cta-block::before { content: ""; position: absolute; right: -60px; top: -60px; width: 240px; height: 240px; background: radial-gradient(circle at center, var(--bksfs-accent-soft) 0%, transparent 70%); pointer-events: none; }
.bks-fs__cta-block > * { position: relative; z-index: 1; }
.bks-fs__cta-block h3, .bks-fs__cta-block .bks-fs__h3 { color: var(--bksfs-text); font-size: 26px; line-height: 1.25; margin: 0 0 8px; }
.bks-fs__cta-block p { color: var(--bksfs-text-muted); margin: 0; }
.bks-fs__cta-block-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------------- INTERNAL LINKS BLOCK ---------------- */
.bks-fs__related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.bks-fs__related-link { display: block; padding: 18px; background: var(--bksfs-surface); border-radius: var(--bksfs-radius-md); border: 1px solid var(--bksfs-border); color: var(--bksfs-text); transition: border-color .2s ease, box-shadow .2s ease; border-bottom: 1px solid var(--bksfs-border); font-weight: 600; }
.bks-fs__related-link:hover { border-color: var(--bksfs-accent); color: var(--bksfs-text); box-shadow: var(--bksfs-shadow-sm); }

/* ---------------- RESPONSIVE ---------------- */
@media (max-width: 1199px) {
    .bks-fs__kpi { grid-template-columns: repeat(2, 1fr); }
    .bks-fs__symptoms { grid-template-columns: repeat(2, 1fr); }
    .bks-fs__subcats { grid-template-columns: repeat(2, 1fr); }
    .bks-fs__brand-grid { grid-template-columns: repeat(4, 1fr); }
    .bks-fs__steps { grid-template-columns: repeat(2, 1fr); }
    .bks-fs__related { grid-template-columns: repeat(2, 1fr); }
    .bks-fs__hero--with-image .bks-fs__hero-inner { max-width: 65%; }
}
/* На средних/мобильных экранах: картинка снизу, текст полностью на светлом */
@media (max-width: 991px) {
    .bks-fs__hero--with-image { padding-bottom: 260px; }
    .bks-fs__hero--with-image .bks-fs__hero-inner { max-width: none; }
    .bks-fs__hero-media img { object-position: center bottom; }
    .bks-fs__hero-media::after {
        background: linear-gradient(
            to bottom,
            var(--bksfs-surface) 0%,
            var(--bksfs-surface) 58%,
            rgba(247, 248, 248, 0.92) 68%,
            rgba(247, 248, 248, 0.65) 80%,
            rgba(247, 248, 248, 0.35) 92%,
            rgba(247, 248, 248, 0.15) 100%
        );
    }
}
@media (max-width: 767px) {
    .bks-fs h2 { font-size: 26px; margin: 40px 0 12px; }
    .bks-fs h3 { font-size: 20px; }
    .bks-fs__hero { padding: 32px 24px; }
    .bks-fs__hero--with-image { padding: 32px 24px 240px; }
    .bks-fs__hero-subtitle { font-size: 17px; }
    .bks-fs__kpi, .bks-fs__symptoms, .bks-fs__subcats, .bks-fs__steps, .bks-fs__related, .bks-fs__cutaway-legend { grid-template-columns: 1fr; }
    .bks-fs__brand-grid { grid-template-columns: repeat(2, 1fr); }
    .bks-fs__cta-block { grid-template-columns: 1fr; padding: 28px 24px; }
    .bks-fs__price th, .bks-fs__price td { padding: 10px 12px; font-size: 13px; }
}
@media (max-width: 480px) {
    .bks-fs__hero--with-image { padding: 28px 22px 200px; }
}