/* =========================================================
   WELS — redesign in the eSpring visual language
   ========================================================= */

:root {
    --ink: #151615;
    --dark: #1c1c1c;
    --dark-2: #252524;
    --black: #0c0c0c;
    --cyan: #00a9e0;
    --cyan-hover: #0096c7;
    --blue: #0589d1;
    --navy: #215184;
    --navy-2: #1f4967;
    --gray: #f3f5f7;
    --line: #e3e7eb;
    --text: #3b3b3b;
    --muted: #6d7378;
    --white: #fff;

    --font: "Noto Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
    --container: 1240px;
    --gutter: clamp(20px, 4vw, 40px);
    --section: clamp(72px, 9vw, 128px);
    --radius: 18px;
    --ease: cubic-bezier(.22, .61, .36, 1);
    --header-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.65;
    color: var(--text);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

body.is-locked { overflow: hidden; }

img { max-width: 100%; display: block; }
[hidden] { display: none !important; }
a { color: inherit; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; padding: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }

.container {
    width: 100%;
    max-width: calc(var(--container) + var(--gutter) * 2);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

/* ---------- Typography ---------- */
.h2 {
    font-size: clamp(32px, 4.4vw, 56px);
    line-height: 1.12;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ink);
}
.h2--accent { color: var(--cyan); }
.section--dark .h2, .order .h2 { color: var(--white); }

/* "Heading ———" signature line used on eSpring */
.h2--line { display: flex; align-items: center; gap: 28px; }
.h2--line::after {
    content: "";
    flex: 0 0 clamp(60px, 10vw, 140px);
    height: 1px;
    background: currentColor;
    opacity: .5;
}
.section__head--center .h2--line::before {
    content: "";
    flex: 0 0 clamp(60px, 10vw, 140px);
    height: 1px;
    background: currentColor;
    opacity: .5;
}

.h3 {
    font-size: clamp(26px, 2.6vw, 36px);
    line-height: 1.2;
    font-weight: 700;
    color: var(--white);
}

.rich p + p, .rich p + ul, .rich ul + p, .rich .video-embed + p { margin-top: 14px; }
.rich strong { font-weight: 700; }
.rich a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
.rich a:hover { color: var(--blue); }
.rich__lead { font-weight: 700; color: var(--ink); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 52px;
    padding: 14px 34px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: .01em;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.btn:active { transform: scale(.98); }
.btn--primary { background: var(--cyan); color: var(--white); }
.btn--primary:hover { background: var(--cyan-hover); }
.btn--ghost { border: 1.5px solid var(--ink); color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--white); }
.btn--sm { min-height: 42px; padding: 10px 24px; font-size: 14px; }
.btn--block { width: 100%; }
.btn--play::before {
    content: "";
    width: 0; height: 0;
    border-style: solid;
    border-width: 6px 0 6px 10px;
    border-color: transparent transparent transparent currentColor;
}

.link-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 22px;
    font-weight: 600;
    font-size: 15px;
    color: var(--cyan);
}
.link-more::after {
    content: "";
    width: 22px; height: 1.5px;
    background: currentColor;
    transition: width .25s var(--ease);
}
.link-more:hover::after { width: 36px; }

/* ---------- Pulse hotspot ---------- */
.pulse {
    position: absolute;
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 0 0 rgba(0, 169, 224, .6);
    animation: pulse 2s infinite;
}
.pulse::after {
    content: "";
    position: absolute;
    inset: 7px;
    border-radius: 50%;
    background: var(--white);
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 169, 224, .55); }
    70% { box-shadow: 0 0 0 18px rgba(0, 169, 224, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 169, 224, 0); }
}

/* ---------- Sections ---------- */
.section { padding: var(--section) 0; }
.section--dark { background: var(--dark); color: rgba(255, 255, 255, .78); }
.section--gray { background: var(--gray); }

.section__head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: clamp(36px, 5vw, 64px);
}
.section__head--center { justify-content: center; text-align: center; }

/* ---------- Reveal on scroll ---------- */
[data-reveal] { opacity: 0; transform: translateY(32px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    [data-reveal] { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* =========================================================
   HEADER & MENU
   ========================================================= */
.header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 50;
    height: var(--header-h);
    transition: background-color .35s var(--ease), box-shadow .35s var(--ease);
}
.header.is-scrolled, body.menu-open .header {
    background: rgba(21, 22, 21, .92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .06);
}
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.header__logo img { width: 92px; height: auto; }
.header__actions { display: flex; align-items: center; gap: 22px; }
.header__phone { color: var(--white); text-decoration: none; font-weight: 600; font-size: 15px; letter-spacing: .02em; }
.header__phone:hover { color: var(--cyan); }

.burger { position: relative; width: 44px; height: 44px; display: grid; place-content: center; gap: 6px; }
.burger span { display: block; width: 26px; height: 2px; background: var(--white); border-radius: 2px; transition: transform .3s var(--ease), opacity .3s var(--ease); }
body.menu-open .burger span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
body.menu-open .burger span:nth-child(2) { opacity: 0; }
body.menu-open .burger span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.menu {
    position: fixed;
    inset: 0;
    z-index: 40;
    padding: calc(var(--header-h) + 40px) 0 40px;
    background: var(--ink);
    color: var(--white);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transition: opacity .4s var(--ease), visibility .4s;
}
body.menu-open .menu { opacity: 1; visibility: visible; }
.menu__inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    grid-template-rows: 1fr auto;
    gap: 48px 80px;
    min-height: 100%;
}
.menu__nav a {
    display: inline-block;
    padding: 6px 0;
    font-size: clamp(28px, 3.6vw, 46px);
    font-weight: 700;
    line-height: 1.25;
    text-decoration: none;
    color: rgba(255, 255, 255, .9);
    transition: color .2s, transform .3s var(--ease);
}
.menu__nav a:hover { color: var(--cyan); transform: translateX(8px); }
.menu__form { background: var(--dark-2); border-radius: var(--radius); padding: 32px; align-self: start; }
.menu__form-title { font-size: 24px; font-weight: 700; margin-bottom: 20px; }
.menu__social { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 12px 32px; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, .12); }
.menu__social a { text-decoration: none; color: rgba(255, 255, 255, .7); font-size: 15px; }
.menu__social a:hover { color: var(--cyan); }

/* =========================================================
   BANNER (HERO) — offer, CTAs, proof
   ========================================================= */
.banner {
    position: relative;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--ink);
    color: var(--white);
}
.banner__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.banner__shade {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(10, 12, 14, .88) 0%, rgba(10, 12, 14, .62) 45%, rgba(10, 12, 14, .25) 100%),
        linear-gradient(180deg, rgba(10, 12, 14, .5) 0%, transparent 30%, rgba(10, 12, 14, .85) 100%);
}
.banner__content {
    position: relative;
    z-index: 1;
    flex: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(32px, 5vw, 80px);
    padding-top: calc(var(--header-h) + clamp(24px, 4vh, 56px));
    padding-bottom: clamp(24px, 4vh, 44px);
}
.banner__eyebrow { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 18px; font-size: 14px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: rgba(255, 255, 255, .75); }
.banner__eyebrow span { padding: 4px 10px; border-radius: 6px; background: var(--cyan); color: var(--white); letter-spacing: .08em; }
.banner__title {
    font-size: clamp(34px, 4.2vw, 60px);
    line-height: 1.07;
    font-weight: 800;
    letter-spacing: -0.02em;
    max-width: 17ch;
}
.banner__lead { margin-top: 20px; max-width: 560px; font-size: clamp(16px, 1.35vw, 19px); line-height: 1.6; color: rgba(255, 255, 255, .82); }
.banner__lead strong { color: var(--white); }
.banner__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.btn--lg { min-height: 60px; padding: 18px 40px; font-size: 16.5px; }
.btn--primary.btn--lg { box-shadow: 0 16px 36px -12px rgba(0, 169, 224, .7); }
.btn--glass { border: 1.5px solid rgba(255, 255, 255, .45); color: var(--white); background: rgba(255, 255, 255, .06); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.btn--glass:hover { background: var(--white); color: var(--ink); border-color: var(--white); }
.btn--light { background: var(--white); color: var(--navy); }
.btn--light:hover { background: var(--ink); color: var(--white); }

.banner__call { display: inline-flex; align-items: center; gap: 14px; margin-top: 22px; text-decoration: none; font-size: 19px; font-weight: 700; line-height: 1.25; }
.banner__call small { display: block; font-size: 13px; font-weight: 500; color: rgba(255, 255, 255, .6); }
.banner__call:hover { color: var(--cyan); }
.banner__call-icon {
    flex-shrink: 0;
    width: 46px; height: 46px;
    border-radius: 50%;
    border: 1.5px solid rgba(255, 255, 255, .35);
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300a9e0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 16.92v3a2 2 0 0 1-2.18 2 19.8 19.8 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6A19.8 19.8 0 0 1 2.12 4.18 2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72c.13.96.36 1.9.7 2.81a2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45c.91.34 1.85.57 2.81.7A2 2 0 0 1 22 16.92z'/%3E%3C/svg%3E") center / 20px no-repeat;
    animation: ring 2.6s infinite;
}
@keyframes ring { 0%, 100% { box-shadow: 0 0 0 0 rgba(0, 169, 224, .45); } 50% { box-shadow: 0 0 0 10px rgba(0, 169, 224, 0); } }

/* product teaser card (replaces the external eSpring link) */
.banner__card { justify-self: end; width: 100%; max-width: 400px; }
.banner__product {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 18px;
    align-items: center;
    width: 100%;
    padding: 18px;
    text-align: left;
    border-radius: 22px;
    background: rgba(255, 255, 255, .96);
    color: var(--ink);
    box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .7);
    transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.banner__product:hover { transform: translateY(-4px); box-shadow: 0 50px 90px -30px rgba(0, 0, 0, .8); }
.banner__product-img { display: grid; place-items: center; aspect-ratio: 1; border-radius: 16px; background: radial-gradient(circle at 50% 55%, rgba(0, 169, 224, .2), var(--gray) 70%); }
.banner__product-img img { width: 86%; filter: drop-shadow(0 10px 14px rgba(0, 0, 0, .15)); }
.banner__product-body { display: flex; flex-direction: column; gap: 4px; }
.banner__product-tag { align-self: flex-start; padding: 3px 10px; border-radius: 50px; background: rgba(0, 169, 224, .12); color: var(--blue); font-size: 12px; font-weight: 700; }
.banner__product-name { font-size: 24px; font-weight: 800; line-height: 1.2; }
.banner__product-text { font-size: 13.5px; line-height: 1.45; color: var(--muted); }
.banner__product-more { margin-top: 4px; font-size: 14px; font-weight: 700; color: var(--cyan); }
.banner__product-more::after { content: " →"; }
.banner__espring-link { display: block; margin-top: 14px; padding: 0 6px; font-size: 13px; line-height: 1.45; color: rgba(255, 255, 255, .6); text-decoration: none; }
.banner__espring-link:hover { color: var(--white); }

/* proof bar */
.banner__bottom { position: relative; z-index: 1; padding: 22px 0 24px; border-top: 1px solid rgba(255, 255, 255, .12); background: linear-gradient(180deg, rgba(10, 12, 14, .2), rgba(10, 12, 14, .55)); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }
.banner__stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.banner__stats li { display: flex; flex-direction: column; gap: 2px; padding-left: 18px; border-left: 2px solid var(--cyan); }
.banner__stats b { font-size: clamp(26px, 2.6vw, 36px); line-height: 1.1; font-weight: 800; letter-spacing: -0.01em; }
.banner__stats span { font-size: 13.5px; line-height: 1.4; color: rgba(255, 255, 255, .7); }
.banner__trust { display: flex; align-items: center; gap: 28px; margin-top: 20px; }
.banner__trust-label { flex-shrink: 0; font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: rgba(255, 255, 255, .55); }
.banner__trust ul { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex: 1; min-width: 0; }
.banner__trust ul { justify-content: flex-start; gap: 12px; }
.banner__trust li { display: grid; place-items: center; height: 52px; padding: 6px 14px; border-radius: 12px; background: rgba(255, 255, 255, .92); }
.banner__trust img { height: 40px; width: auto; max-width: 104px; object-fit: contain; filter: grayscale(1); opacity: .85; transition: filter .3s, opacity .3s; }
.banner__trust li:hover img { filter: none; opacity: 1; }

/* =========================================================
   CONVERSION HELPERS
   ========================================================= */
.cta-band { background: linear-gradient(110deg, var(--cyan) 0%, var(--blue) 55%, var(--navy) 100%); color: var(--white); padding: clamp(48px, 6vw, 80px) 0; }
.cta-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta-band__title { font-size: clamp(26px, 3vw, 40px); line-height: 1.15; font-weight: 800; max-width: 24ch; }
.cta-band__text { margin-top: 14px; max-width: 620px; color: rgba(255, 255, 255, .85); }
.cta-band__actions { display: flex; flex-direction: column; align-items: center; gap: 14px; flex-shrink: 0; }
.cta-band__phone { color: var(--white); font-weight: 700; text-decoration: none; }
.cta-band__phone:hover { text-decoration: underline; }

.product-card__text { margin: -12px 0 22px; font-size: 14px; line-height: 1.5; color: var(--muted); flex-grow: 1; }
.product-card__title { flex-grow: 0 !important; }

.order__lead { margin-top: 18px; font-size: 17px; color: rgba(255, 255, 255, .85); max-width: 460px; }
.order__benefits { margin-top: 26px; display: grid; gap: 14px; }
.order__benefits li { position: relative; padding-left: 36px; font-weight: 500; }
.order__benefits li::before {
    content: "";
    position: absolute;
    left: 0; top: 0;
    width: 24px; height: 24px;
    border-radius: 50%;
    background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230589d1' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 14px no-repeat;
}
.order__phone small { display: block; font-size: 13px; font-weight: 500; opacity: .7; }

.sticky-cta { display: none; }

/* =========================================================
   SLIDERS (native scroll-snap)
   ========================================================= */
.slider {
    display: grid;
    grid-auto-flow: column;
    gap: 24px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    scrollbar-width: none;
    overscroll-behavior-x: contain;
}
.slider::-webkit-scrollbar { display: none; }
.slider > * { scroll-snap-align: start; }

.slider-nav { display: flex; gap: 12px; flex-shrink: 0; }
.slider-arrow {
    position: relative;
    width: 52px; height: 52px;
    border-radius: 50%;
    border: 1.5px solid currentColor;
    color: var(--ink);
    transition: background-color .25s, color .25s, border-color .25s, opacity .25s;
}
.slider-arrow::before {
    content: "";
    position: absolute;
    top: 50%; left: 50%;
    width: 10px; height: 10px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: translate(-65%, -50%) rotate(45deg);
}
.slider-arrow--prev::before { transform: translate(-35%, -50%) rotate(-135deg); }
.slider-arrow:hover { background: var(--cyan); border-color: var(--cyan); color: var(--white); }
.slider-arrow:disabled { opacity: .3; pointer-events: none; }
.slider-nav.is-static { visibility: hidden; }
.slider-nav--light .slider-arrow { color: var(--white); }

.slider-dots { display: flex; justify-content: center; gap: 14px; padding: 32px 0 0; }
.slider-dots button {
    width: 12px; height: 12px;
    border-radius: 50%;
    border: 1.5px solid var(--cyan);
    transition: background-color .25s;
}
.slider-dots button.is-active { background: var(--cyan); }

/* =========================================================
   PRODUCTS
   ========================================================= */
.product__track { grid-auto-columns: calc((100% - 20px * 4) / 5); gap: 20px; }
.product-card {
    display: flex;
    flex-direction: column;
    background: var(--gray);
    border-radius: var(--radius);
    padding: 28px 24px 28px;
    transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 28px 50px -28px rgba(21, 22, 21, .35); }
.product-card__media {
    position: relative;
    height: 230px;
    display: grid;
    place-items: center;
    margin-bottom: 22px;
    border-radius: 14px;
    background: radial-gradient(circle at 50% 55%, rgba(0, 169, 224, .16) 0, rgba(0, 169, 224, .06) 45%, transparent 70%);
}
.product-card__media > img { max-width: 78%; max-height: 190px; object-fit: contain; filter: drop-shadow(0 18px 24px rgba(0, 0, 0, .12)); transition: transform .5s var(--ease); }
.product-card:hover .product-card__media > img { transform: scale(1.05); }
.product-card__title { font-size: 21px; font-weight: 700; color: var(--ink); line-height: 1.25; margin-bottom: 22px; flex-grow: 1; }
.product-card__btns { display: grid; gap: 10px; }
.product-card__btns .btn { padding: 12px 16px; min-height: 46px; font-size: 14px; }

/* Before/after compare (eco-bottle) */
.compare { position: relative; height: 190px; aspect-ratio: 149 / 250; user-select: none; }
.compare > img, .compare__overlay img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.compare__overlay { position: absolute; inset: 0; clip-path: inset(0 0 0 var(--pos)); }
.compare__handle {
    position: absolute;
    top: -6%; bottom: -6%;
    left: var(--pos);
    width: 2px;
    background: var(--cyan);
    pointer-events: none;
}
.compare__handle::after {
    content: "‹ ›";
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 34px; height: 34px;
    display: grid; place-items: center;
    border-radius: 50%;
    background: var(--cyan);
    color: var(--white);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: -1px;
    box-shadow: 0 6px 14px rgba(0, 169, 224, .45);
}
.compare__range { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }

/* =========================================================
   USING (tabs + split panel)
   ========================================================= */
.tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: clamp(36px, 5vw, 56px);
}
.tabs__btn {
    padding: 12px 26px;
    border-radius: 50px;
    border: 1.5px solid rgba(255, 255, 255, .25);
    color: rgba(255, 255, 255, .8);
    font-size: 15px;
    font-weight: 600;
    transition: all .25s var(--ease);
}
.tabs__btn:hover { border-color: var(--cyan); color: var(--white); }
.tabs__btn.is-active { background: var(--cyan); border-color: var(--cyan); color: var(--white); }

.using__panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--dark-2);
    border-radius: var(--radius);
    overflow: hidden;
    min-height: 520px;
}
.using__panel.is-active { animation: fadein .6s var(--ease); }
@keyframes fadein { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.using__media { position: relative; }
.using__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.using__body { padding: clamp(32px, 5vw, 64px); display: flex; flex-direction: column; align-items: flex-start; gap: 22px; }
.using__body .rich { font-size: 15.5px; }
.using__body .rich strong { color: var(--white); }

.stats { display: flex; flex-wrap: wrap; gap: 18px 40px; }
.stat { display: flex; flex-direction: column; }
.stat__num { font-size: clamp(28px, 3vw, 40px); line-height: 1.1; font-weight: 700; color: var(--cyan); }
.stat__label { font-size: 14px; color: rgba(255, 255, 255, .7); }

.checklist li { position: relative; padding-left: 34px; }
.checklist li + li { margin-top: 12px; }
.checklist li::before {
    content: "";
    position: absolute;
    left: 0; top: 2px;
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--cyan) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 13px no-repeat;
}

/* =========================================================
   OPPORTUNITY (bright band like "5000 л води на рік")
   ========================================================= */
.opportunity {
    position: relative;
    overflow: hidden;
    background: var(--cyan);
    color: var(--white);
}
.opportunity::before {
    content: "";
    position: absolute;
    right: -10%; top: -40%;
    width: 60vw; height: 60vw;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, .18), transparent 65%);
    pointer-events: none;
}
.opportunity__inner { position: relative; display: grid; grid-template-columns: 1fr 2fr; gap: 60px; align-items: center; }
.opportunity__title { color: var(--white); }
.opportunity__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.opportunity__item { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 22px; }
.opportunity__item img { width: 72px; height: 72px; object-fit: contain; }
.opportunity__item p { font-size: 18px; font-weight: 600; line-height: 1.4; }

/* =========================================================
   CONCEPT (numbered story)
   ========================================================= */
.concept__list { position: relative; display: flex; flex-direction: column; gap: clamp(56px, 8vw, 110px); }
.concept__step { display: grid; grid-template-columns: 1fr 1.15fr; align-items: center; gap: clamp(32px, 6vw, 96px); }
.concept__step:nth-child(even) .concept__text { order: 2; }
.concept__text { max-width: 480px; }
.concept__num {
    display: block;
    font-size: clamp(88px, 11vw, 150px);
    line-height: .9;
    font-weight: 800;
    color: var(--cyan);
    letter-spacing: -0.04em;
    margin-bottom: 18px;
}
.concept__title { font-size: clamp(24px, 2.4vw, 32px); line-height: 1.2; font-weight: 700; color: var(--ink); margin-bottom: 16px; }
.concept__text p { font-size: 16.5px; color: var(--muted); }
.concept__text strong { color: var(--ink); }
.concept__media {
    position: relative;
    display: grid;
    place-items: center;
    aspect-ratio: 4 / 3;
    background: var(--gray);
    border-radius: var(--radius);
    padding: 28px;
}
.concept__media img { max-height: 100%; max-width: 100%; width: auto; object-fit: contain; }
.concept__media .pulse { top: 22px; right: 22px; }

/* =========================================================
   REVIEWS
   ========================================================= */
.review__track { grid-auto-columns: calc((100% - 24px) / 2); }
.review-card {
    display: flex;
    flex-direction: column;
    gap: 26px;
    background: var(--dark-2);
    border-radius: var(--radius);
    padding: clamp(28px, 3.5vw, 44px);
    position: relative;
}
.review-card::before {
    content: "“";
    position: absolute;
    right: 32px; top: 6px;
    font-size: 140px;
    line-height: 1;
    font-weight: 800;
    color: var(--cyan);
    opacity: .9;
}
.review-card__head { display: flex; align-items: center; gap: 18px; }
.review-card__img { width: 76px; height: 76px; border-radius: 50%; object-fit: cover; flex-shrink: 0; border: 2px solid var(--cyan); }
.review-card__name { font-size: 19px; font-weight: 700; color: var(--white); line-height: 1.3; }
.review-card__city { font-size: 14px; color: var(--cyan); }
.review-card__text { font-size: 15.5px; color: rgba(255, 255, 255, .75); }

/* =========================================================
   CERTIFICATES
   ========================================================= */
.sertificat__intro {
    display: grid;
    grid-template-columns: 1fr 1.6fr auto;
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
    padding: clamp(32px, 5vw, 60px);
    border-radius: var(--radius);
    background: var(--dark);
    color: rgba(255, 255, 255, .78);
    margin-bottom: 28px;
}
.sertificat__heading { font-size: clamp(28px, 3vw, 40px); line-height: 1.2; font-weight: 400; color: var(--white); }
.sertificat__text { font-size: 15px; }
.sertificat__badge { display: flex; flex-direction: column; align-items: center; gap: 14px; text-decoration: none; }
.sertificat__badge-img {
    position: relative;
    width: 130px; height: 130px;
    display: grid; place-items: center;
    border-radius: 50%;
    background: var(--white);
}
.sertificat__badge-img img { width: 72px; }
.sertificat__badge-img .pulse { top: 4px; right: 4px; }
.sertificat__badge-link { color: var(--cyan); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }

/* two equal-height cards: certificate "stage" on top, list fills the rest */
.sertificat__cards { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: stretch; }
.cert-card {
    position: relative;
    display: flex;
    flex-direction: column;
    border-radius: var(--radius);
    background: var(--blue);
    color: var(--white);
    overflow: hidden;
}
.cert-card--alt { background: var(--navy); }
.cert-card__tag {
    position: absolute;
    top: 24px; left: 24px;
    z-index: 1;
    padding: 7px 16px;
    border-radius: 50px;
    background: rgba(255, 255, 255, .16);
    backdrop-filter: blur(6px);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
}
.cert-card__img {
    display: grid;
    place-items: center;
    height: 340px;
    padding: 56px 24px 32px;
    background:
        radial-gradient(circle at 50% 60%, rgba(255, 255, 255, .22), transparent 62%),
        rgba(0, 0, 0, .12);
}
.cert-card__img img { max-height: 252px; height: auto; width: auto; max-width: 100%; border-radius: 6px; box-shadow: 0 26px 46px -16px rgba(0, 0, 0, .55); transform: rotate(-3deg); transition: transform .5s var(--ease); }
.cert-card--alt .cert-card__img img { transform: rotate(3deg); }
.cert-card:hover .cert-card__img img { transform: rotate(0) scale(1.03); }
.cert-card__body { flex: 1; display: flex; flex-direction: column; padding: clamp(28px, 3.5vw, 44px); }
.cert-card__cta { margin-top: auto; padding-top: 32px; }
.cert-card__cta .btn { background: var(--white); color: var(--blue); }
.cert-card--alt .cert-card__cta .btn { color: var(--navy); }
.cert-card__cta .btn:hover { background: var(--cyan); color: var(--white); }
.cert-card__title { font-size: 21px; font-weight: 700; line-height: 1.3; margin-bottom: 22px; padding-bottom: 20px; border-bottom: 1px solid rgba(255, 255, 255, .2); }
.cert-card .checklist { font-size: 15px; }
.cert-card .checklist li + li { margin-top: 14px; }
.checklist--light li::before { background-color: var(--white); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230589d1' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E"); }
.cert-card--alt .checklist--light li::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23215184' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E"); }

/* =========================================================
   AMBASSADORS (portrait selector + feature panel)
   ========================================================= */
.section--black { background: var(--black); color: rgba(255, 255, 255, .78); }
.section--black .h2 { color: var(--white); }

.amb-thumbs { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; margin-bottom: 28px; }
.amb-thumb {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    aspect-ratio: 3 / 4;
    padding: 14px;
    border-radius: 14px;
    overflow: hidden;
    text-align: left;
    background: var(--dark-2);
    isolation: isolate;
    transition: transform .35s var(--ease);
}
.amb-thumb img { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: center 20%; filter: grayscale(1) brightness(.75); transition: filter .4s var(--ease), transform .6s var(--ease); }
.amb-thumb::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, .85)); }
.amb-thumb::after { content: ""; position: absolute; inset: 0; border-radius: inherit; border: 2px solid transparent; transition: border-color .3s; }
.amb-thumb__name { font-size: 15px; font-weight: 700; line-height: 1.25; color: var(--white); }
.amb-thumb__pos { font-size: 12px; line-height: 1.35; color: rgba(255, 255, 255, .65); margin-top: 3px; }
.amb-thumb:hover { transform: translateY(-4px); }
.amb-thumb:hover img { filter: grayscale(.3) brightness(.85); }
.amb-thumb.is-active img { filter: none; transform: scale(1.04); }
.amb-thumb.is-active::after { border-color: var(--cyan); }
.amb-thumb.is-active .amb-thumb__pos { color: var(--cyan); }

.amb-stage { border-radius: var(--radius); overflow: hidden; background: var(--dark); }
.amb { display: grid; grid-template-columns: 5fr 7fr; }
.amb.is-active { animation: fadein .6s var(--ease); }
.amb__media { position: relative; display: block; min-height: 460px; overflow: hidden; background: linear-gradient(160deg, #2b2b2a, #151615); }
.amb__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 20%; transition: transform .8s var(--ease); }
.amb__media:hover img { transform: scale(1.04); }
.amb__media .play { width: 84px; height: 84px; box-shadow: 0 0 0 10px rgba(0, 169, 224, .25); }
.amb__body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 16px;
    padding: clamp(32px, 5vw, 72px);
}
.amb__position { color: var(--cyan); font-weight: 600; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; }
.amb__name { font-size: clamp(32px, 3.6vw, 48px); line-height: 1.1; font-weight: 700; color: var(--white); }
.amb__text { position: relative; font-size: 15.5px; max-width: 600px; margin-bottom: 8px; padding-left: 22px; border-left: 2px solid var(--cyan); }
.amb__text p + p { margin-top: 12px; }

/* =========================================================
   PARTNERS
   ========================================================= */
.partner__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.partner__grid li {
    display: grid;
    place-items: center;
    aspect-ratio: 2 / 1;
    padding: 18px 28px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}
.partner__grid img { max-height: 100%; max-width: 100%; width: auto; object-fit: contain; filter: grayscale(1); opacity: .65; transition: filter .3s, opacity .3s, transform .3s var(--ease); }
.partner__grid li:hover img { filter: none; opacity: 1; transform: scale(1.04); }

/* =========================================================
   PROJECTS
   ========================================================= */
.project__track { grid-auto-columns: calc((100% - 24px * 2) / 3); }
.project-card { display: flex; flex-direction: column; text-align: left; gap: 18px; }
.project-card__media { position: relative; display: block; aspect-ratio: 62 / 35; border-radius: var(--radius); overflow: hidden; background: var(--dark); }
.project-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.project-card__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, .45)); }
.project-card:hover .project-card__media img { transform: scale(1.06); }
.play {
    position: absolute;
    z-index: 1;
    left: 50%; top: 50%;
    width: 68px; height: 68px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: rgba(0, 169, 224, .92);
    transition: transform .3s var(--ease), background-color .3s;
}
.play::after {
    content: "";
    position: absolute;
    left: 52%; top: 50%;
    transform: translate(-40%, -50%);
    border-style: solid;
    border-width: 10px 0 10px 16px;
    border-color: transparent transparent transparent var(--white);
}
.project-card:hover .play { transform: translate(-50%, -50%) scale(1.1); }
.project-card__name { font-size: 16.5px; font-weight: 600; line-height: 1.45; color: var(--ink); }

/* =========================================================
   ORDER
   ========================================================= */
.order { background: linear-gradient(120deg, var(--blue) 0%, var(--navy) 100%); color: var(--white); position: relative; overflow: hidden; }
.order::before {
    content: "";
    position: absolute;
    left: -15%; bottom: -60%;
    width: 70vw; height: 70vw;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, .12);
    box-shadow: 0 0 0 80px rgba(255, 255, 255, .03), 0 0 0 160px rgba(255, 255, 255, .02);
    pointer-events: none;
}
.order__inner { position: relative; display: grid; grid-template-columns: 1fr 1.25fr; gap: clamp(36px, 6vw, 96px); align-items: center; }
.order__phone { display: inline-block; margin-top: 22px; font-size: clamp(22px, 2.4vw, 30px); font-weight: 700; color: var(--white); text-decoration: none; }
.order__phone:hover { color: rgba(255, 255, 255, .8); }
.order__card { background: var(--white); color: var(--text); border-radius: var(--radius); padding: clamp(28px, 4vw, 48px); box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .55); }

/* ---------- Forms ---------- */
.order-form { display: flex; flex-direction: column; gap: 14px; }
.order-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.order-form input[type="text"], .order-form input[type="tel"], .order-form select {
    width: 100%;
    height: 54px;
    padding: 0 20px;
    border: 1.5px solid var(--line);
    border-radius: 12px;
    background: var(--gray);
    font: inherit;
    font-size: 15px;
    color: var(--ink);
    transition: border-color .2s, background-color .2s;
    appearance: none;
}
.order-form select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300a9e0' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 18px;
    padding-right: 48px;
    cursor: pointer;
}
.order-form input:focus, .order-form select:focus { outline: none; border-color: var(--cyan); background-color: var(--white); }
.order-form .is-error { border-color: #e34a6f !important; }
.order-form .btn { margin-top: 8px; }
.order-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

.check { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; line-height: 1.45; cursor: pointer; }
.check input {
    flex-shrink: 0;
    appearance: none;
    width: 22px; height: 22px;
    margin: 0;
    border: 1.5px solid #b8c0c8;
    border-radius: 6px;
    background: var(--white);
    cursor: pointer;
    transition: all .2s;
}
.check input:checked {
    border-color: var(--cyan);
    background: var(--cyan) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 14px no-repeat;
}
.check input.is-error { border-color: #e34a6f; }

/* dark variant (menu) */
.menu .order-form input[type="text"], .menu .order-form input[type="tel"], .menu .order-form select { background-color: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .14); color: var(--white); }
.menu .order-form select option { color: var(--ink); }
.menu .order-form input::placeholder { color: rgba(255, 255, 255, .55); }
.menu .check { color: rgba(255, 255, 255, .75); }
.menu .check input { background-color: transparent; border-color: rgba(255, 255, 255, .35); }
.menu .check input:checked { background-color: var(--cyan); border-color: var(--cyan); }

.form-success { text-align: center; padding: 40px 0; }
.form-success p:first-child { font-size: 26px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }

/* =========================================================
   MAPS
   ========================================================= */
.maps { display: grid; grid-template-columns: minmax(320px, 460px) 1fr; min-height: 640px; background: var(--white); }
.maps__list {
    padding: clamp(48px, 6vw, 80px) clamp(24px, 3vw, 48px);
    padding-left: max(var(--gutter), calc((100vw - var(--container)) / 2));
    max-height: 760px;
    overflow-y: auto;
}
.maps__list .h2 { margin-bottom: 28px; }
.maps__items li + li { border-top: 1px solid var(--line); }
.maps__items a { display: flex; flex-direction: column; gap: 2px; padding: 16px 12px 16px 0; text-decoration: none; transition: padding .25s var(--ease); }
.maps__items a:hover, .maps__items a.is-active { padding-left: 12px; }
.maps__city { font-size: 18px; font-weight: 700; color: var(--ink); transition: color .2s; }
.maps__items a:hover .maps__city, .maps__items a.is-active .maps__city { color: var(--cyan); }
.maps__addr { font-size: 14.5px; color: var(--muted); line-height: 1.5; }
.maps__map { min-height: 480px; background: var(--gray); z-index: 0; }
.maps__map .leaflet-tile-pane { filter: grayscale(1) contrast(1.02) brightness(1.03); }
.map-pin {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--cyan);
    border: 4px solid var(--white);
    box-shadow: 0 0 0 2px var(--cyan), 0 6px 14px rgba(0, 0, 0, .3);
    transition: transform .2s;
}
.map-pin.is-active { transform: scale(1.35); background: var(--navy); box-shadow: 0 0 0 2px var(--navy), 0 6px 14px rgba(0, 0, 0, .3); }
.leaflet-popup-content-wrapper { border-radius: 12px; font-family: var(--font); }
.leaflet-popup-content { margin: 14px 18px; font-size: 14px; line-height: 1.5; }
.leaflet-popup-content b { display: block; font-size: 16px; color: var(--ink); }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { background: var(--black); color: rgba(255, 255, 255, .6); padding: clamp(56px, 7vw, 88px) 0 32px; font-size: 15px; }
.footer a { text-decoration: none; transition: color .2s; }
.footer a:hover { color: var(--cyan); }
.footer__grid { display: grid; grid-template-columns: 1.2fr 2fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer__logo img { width: 120px; height: auto; }
.footer__phone { display: block; margin: 22px 0 14px; font-size: 18px; font-weight: 600; color: var(--white); }
.footer__social { display: flex; gap: 22px; }
.footer__nav ul { display: grid; grid-template-columns: repeat(2, auto); gap: 12px 40px; justify-content: start; }
.footer__nav a { color: rgba(255, 255, 255, .85); font-weight: 500; }
.footer__eco p { color: var(--white); font-weight: 700; margin-bottom: 6px; }
.footer__eco a { color: var(--cyan); }
.footer__bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 28px; font-size: 14px; }
.footer__rules { color: rgba(255, 255, 255, .6); text-decoration: underline; text-underline-offset: 3px; transition: color .2s; }
.footer__rules:hover { color: var(--cyan); }
.footer__dev { color: rgba(255, 255, 255, .55); font-size: 13px; letter-spacing: .02em; }
.footer__dev b { font-weight: 600; color: rgba(255, 255, 255, .85); }
.footer__dev:hover, .footer__dev:hover b { color: var(--cyan); }

/* =========================================================
   POPUPS
   ========================================================= */
.popup {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(12, 12, 12, .78);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transition: opacity .35s var(--ease), visibility .35s;
}
.popup.is-open { opacity: 1; visibility: visible; }
.popup__wrap { min-height: 100%; display: flex; align-items: center; justify-content: center; padding: 40px 16px; }
.popup__content {
    position: relative;
    width: 100%;
    max-width: 560px;
    background: var(--white);
    border-radius: var(--radius);
    transform: translateY(24px) scale(.98);
    transition: transform .4s var(--ease);
}
.popup.is-open .popup__content { transform: none; }
.popup__close {
    position: absolute;
    top: 16px; right: 16px;
    z-index: 3;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--gray);
    transition: background-color .2s, transform .3s var(--ease);
}
.popup__close::before, .popup__close::after {
    content: "";
    position: absolute;
    top: 50%; left: 50%;
    width: 18px; height: 2px;
    background: var(--ink);
    transform: translate(-50%, -50%) rotate(45deg);
}
.popup__close::after { transform: translate(-50%, -50%) rotate(-45deg); }
.popup__close:hover { background: var(--cyan); transform: rotate(90deg); }
.popup__close:hover::before, .popup__close:hover::after { background: var(--white); }
.popup__body { padding: clamp(32px, 4vw, 52px); }
.popup--form .h2 { font-size: 36px; margin-bottom: 24px; }

/* product popup: gallery + text split */
.popup--product .popup__content { max-width: 1240px; display: grid; grid-template-columns: 1fr 1.1fr; overflow: clip; }
.popup__gallery {
    position: sticky;
    top: 0;
    align-self: start;
    display: flex;
    flex-direction: column;
    gap: 14px;
    height: min(calc(100vh - 80px), 860px);
    padding: 24px;
    background: var(--gray);
}
.popup__stage {
    position: relative;
    flex: 1;
    min-height: 0;
    border-radius: 14px;
    overflow: hidden;
    background: radial-gradient(circle at 50% 45%, #fff 0, #eef2f5 75%);
}
.popup__slides { display: grid; grid-auto-flow: column; grid-auto-columns: 100%; height: 100%; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth; scrollbar-width: none; }
.popup__slides::-webkit-scrollbar { display: none; }
.popup__slides img { width: 100%; height: 100%; object-fit: contain; scroll-snap-align: start; }
.popup__stage .slider-arrow { position: absolute; top: 50%; margin-top: -24px; width: 48px; height: 48px; background: rgba(255, 255, 255, .95); border-color: transparent; box-shadow: 0 8px 20px -8px rgba(0, 0, 0, .3); }
.popup__stage .slider-arrow--prev { left: 14px; }
.popup__stage .slider-arrow--next { right: 14px; }
.popup__stage .slider-arrow:hover { background: var(--cyan); }
.popup__counter { position: absolute; left: 16px; bottom: 14px; padding: 4px 12px; border-radius: 50px; background: rgba(21, 22, 21, .7); color: var(--white); font-size: 13px; font-weight: 600; }
.popup__thumbs { display: flex; gap: 10px; flex-shrink: 0; }
.popup__thumbs button { width: 74px; height: 74px; border-radius: 10px; overflow: hidden; background: var(--white); border: 2px solid transparent; opacity: .6; transition: opacity .25s, border-color .25s; }
.popup__thumbs button img { width: 100%; height: 100%; object-fit: cover; }
.popup__thumbs button:hover { opacity: 1; }
.popup__thumbs button.is-active { opacity: 1; border-color: var(--cyan); }

.popup--product .popup__body { display: flex; flex-direction: column; align-items: stretch; gap: 0; padding-bottom: 0; }
.popup__eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.popup__title { font-size: clamp(32px, 3.4vw, 46px); line-height: 1.1; font-weight: 700; color: var(--ink); padding-right: 56px; margin-bottom: 28px; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 1px; margin-bottom: 32px; border-radius: 14px; overflow: hidden; background: var(--line); border: 1px solid var(--line); }
.fact { display: flex; flex-direction: column; gap: 4px; padding: 18px 18px 16px; background: var(--white); }
.fact__num { font-size: clamp(24px, 2.2vw, 30px); line-height: 1.05; font-weight: 800; color: var(--cyan); letter-spacing: -0.01em; white-space: nowrap; }
.fact__label { font-size: 13px; line-height: 1.35; color: var(--muted); }
.popup--product .rich { font-size: 15.5px; line-height: 1.7; padding-bottom: 32px; }
.popup--product .rich > p:first-child, .popup--product .rich > .video-embed + p { font-size: 17.5px; line-height: 1.6; color: var(--ink); }
.popup--product .rich .video-embed { margin-bottom: 24px; }
.popup--product .rich .checklist { margin: 22px 0; padding: 24px; border-radius: 14px; background: var(--gray); }
.popup--product .checklist li + li { margin-top: 12px; }
.popup--product .rich p + p { margin-top: 16px; }
.popup__cta {
    position: sticky;
    bottom: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin: 0 calc(clamp(32px, 4vw, 52px) * -1);
    padding: 18px clamp(32px, 4vw, 52px);
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--line);
}
.popup__phone { white-space: nowrap; display: flex; flex-direction: column; text-align: right; text-decoration: none; font-weight: 700; color: var(--ink); line-height: 1.3; }
.popup__phone span { font-size: 12px; font-weight: 500; color: var(--muted); }
.popup__phone:hover { color: var(--cyan); }

.video-embed { position: relative; aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden; background: var(--ink); }
.video-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.tariffs { display: grid; gap: 12px; margin: 16px 0; }
.tariff { padding: 18px 20px; border-radius: 12px; background: var(--gray); border-left: 4px solid var(--cyan); }
.tariff:nth-child(2) { border-left-color: var(--blue); }
.tariff:nth-child(3) { border-left-color: var(--navy); }
.tariff__name { font-size: 17px; color: var(--ink); margin-bottom: 4px; }

.popup--rules .popup__content { max-width: 880px; }
.rules { font-size: 15px; }
.rules h3 { font-size: 21px; color: var(--ink); margin: 28px 0 12px; padding-right: 56px; }
.rules h3:first-child { margin-top: 0; }
.rules ul { margin-top: 10px; }
.rules ul li { position: relative; padding-left: 20px; }
.rules ul li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); }

.popup--success .popup__content { max-width: 460px; text-align: center; }
.success-icon {
    display: block;
    width: 76px; height: 76px;
    margin: 0 auto 22px;
    border-radius: 50%;
    background: var(--cyan) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 38px no-repeat;
}
.success-title { font-size: 26px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }

.popup--video .popup__content { max-width: 1100px; background: transparent; }
.popup--video .popup__close { top: -56px; right: 0; background: rgba(255, 255, 255, .15); }
.popup--video .popup__close::before, .popup--video .popup__close::after { background: var(--white); }


/* =========================================================
   EYEBROW
   ========================================================= */
.eyebrow { margin-bottom: 14px; font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.eyebrow--light { color: rgba(255, 255, 255, .6); }

/* =========================================================
   HOW IT WORKS (scrollytelling)
   ========================================================= */
.how { padding: var(--section) 0; background: linear-gradient(180deg, #fff 0%, var(--gray) 100%); }
.how__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 6vw, 96px); }
.how__visual { position: relative; }
.how__sticky { position: sticky; top: calc(var(--header-h) + 24px); display: flex; flex-direction: column; align-items: center; gap: 24px; padding: 20px 0; }
.filter-svg { width: 100%; max-width: 520px; height: auto; overflow: visible; }
.fs-water { transition: opacity .8s var(--ease); }
.fs-layer { transition: opacity .6s var(--ease), filter .6s var(--ease); transform-origin: center; }
.filter-svg[data-step="1"] .fs-layer:not(.fs-layer--pre),
.filter-svg[data-step="2"] .fs-layer:not(.fs-layer--protect),
.filter-svg[data-step="3"] .fs-layer:not(.fs-layer--carbon),
.filter-svg[data-step="4"] .fs-layer:not(.fs-layer--uv) { opacity: .35; }
.fs-layer.is-active { filter: drop-shadow(0 0 18px rgba(0, 169, 224, .55)); }
.fs-uv-glow { opacity: 0; transition: opacity .8s var(--ease); }
.filter-svg[data-step="4"] .fs-uv-glow, .filter-svg[data-step="5"] .fs-uv-glow { opacity: 1; animation: uvpulse 1.6s ease-in-out infinite; }
@keyframes uvpulse { 50% { opacity: .65; } }
.fs-leds circle { fill: #234; transition: fill .4s; }
.filter-svg[data-step="4"] .fs-leds circle, .filter-svg[data-step="5"] .fs-leds circle { fill: #bff0ff; }

.fs-p {
    transform: translate(var(--x0), var(--y0)) rotate(var(--rot));
    transition: transform 1.1s var(--ease), opacity .6s, fill .6s;
}
.fs-p.is-captured { transform: translate(var(--x1), var(--y1)) rotate(var(--rot)); }
.p-sediment { fill: #a0703c; }
.p-micro { fill: #ff7a59; }
.p-chem { fill: #9b59d0; }
.p-bact { fill: #6cc04a; }
.p-bact.is-captured { fill: #6c7a80; opacity: .45; }
.filter-svg[data-step="5"] .fs-p { opacity: .55; }
.fs-minerals { opacity: 0; transform: scale(.6); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.fs-minerals text { fill: #fff; font: 700 13px var(--font); }
.filter-svg[data-step="5"] .fs-minerals { opacity: 1; transform: none; }

.how__legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 18px; font-size: 13px; color: var(--muted); }
.how__legend li { display: flex; align-items: center; gap: 8px; transition: color .3s; }
.how__legend li.is-active { color: var(--ink); font-weight: 700; }
.how__legend li.is-done { color: var(--ink); }
.how__legend i { width: 12px; height: 12px; border-radius: 50%; }
.lg-pre { background: #cfd9e1; }
.lg-protect { background: #6cc3e6; }
.lg-carbon { background: #2a2f34; }
.lg-uv { background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }

.how__steps { padding: 10vh 0 20vh; }
.how-step { min-height: 62vh; display: flex; flex-direction: column; justify-content: center; opacity: .25; transition: opacity .5s var(--ease); }
.how-step.is-active { opacity: 1; }
.how-step__num { font-size: 14px; font-weight: 800; letter-spacing: .1em; color: var(--cyan); margin-bottom: 12px; }
.how-step h3 { font-size: clamp(28px, 3vw, 42px); line-height: 1.15; font-weight: 700; color: var(--ink); margin-bottom: 16px; }
.how-step p { font-size: 17px; color: var(--muted); max-width: 480px; }
.how-step__stats { display: flex; flex-wrap: wrap; gap: 16px 36px; margin-top: 18px; }
.how-step__stats b { display: block; font-size: clamp(30px, 3vw, 42px); line-height: 1.1; font-weight: 800; color: var(--cyan); }
.how-step__stats span { font-size: 14px; color: var(--muted); }
.how-step__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; margin-top: 28px; }
.how-step__actions .link-more { margin-top: 0; }

.two-one-zero { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding: 40px clamp(24px, 4vw, 56px); border-radius: var(--radius); background: var(--white); box-shadow: 0 30px 60px -40px rgba(21, 22, 21, .35); }
.two-one-zero li { display: flex; align-items: baseline; gap: 16px; }
.two-one-zero b { font-size: clamp(56px, 6vw, 88px); line-height: 1; font-weight: 800; color: var(--cyan); }
.two-one-zero span { font-size: 16px; font-weight: 600; color: var(--ink); line-height: 1.35; }

/* =========================================================
   ECONOMY
   ========================================================= */
.economy { background: var(--ink); }
.liter-cost { max-width: 980px; margin: 0 auto clamp(56px, 7vw, 88px); display: grid; gap: 18px; }
.liter-row { display: grid; grid-template-columns: 160px 1fr 140px; align-items: center; gap: 20px; }
.liter-row__name { font-weight: 600; color: var(--white); }
.liter-row__bar { height: 14px; border-radius: 10px; background: rgba(255, 255, 255, .08); overflow: hidden; }
.liter-row__bar i { display: block; height: 100%; width: 0; border-radius: inherit; background: #7d8790; transition: width 1.4s var(--ease); }
.liter-cost.is-in .liter-row__bar i { width: var(--w); }
.liter-row--accent .liter-row__bar i { background: var(--cyan); box-shadow: 0 0 16px rgba(0, 169, 224, .7); }
.liter-row__val { text-align: right; font-size: 20px; color: var(--white); white-space: nowrap; }
.liter-row--accent .liter-row__val, .liter-row--accent .liter-row__name { color: var(--cyan); }
.liter-cost__note { text-align: center; margin-top: 10px; font-size: 18px; color: rgba(255, 255, 255, .85); }

.case { display: grid; grid-template-columns: 1fr 1.9fr; gap: 0; border-radius: var(--radius); overflow: hidden; background: var(--dark-2); margin-bottom: 28px; }
.case__intro { padding: clamp(28px, 4vw, 52px); background: linear-gradient(160deg, #1f4967, #152f44); }
.case__logo { width: 150px; padding: 10px 14px; margin-bottom: 26px; border-radius: 12px; background: var(--white); }
.case__title { font-size: clamp(24px, 2.4vw, 32px); line-height: 1.2; font-weight: 700; color: var(--white); margin-bottom: 20px; }
.case__facts { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
.case__facts li { padding: 8px 14px; border-radius: 50px; background: rgba(255, 255, 255, .1); font-size: 14px; color: rgba(255, 255, 255, .85); }
.case__facts b { color: var(--white); }
.case__text { font-size: 15.5px; color: rgba(255, 255, 255, .75); }
.case__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 0; padding: clamp(28px, 4vw, 52px); column-gap: 20px; row-gap: 20px; align-content: start; }
.case__col { padding: 24px; border-radius: 14px; }
.case__col--before { background: rgba(227, 74, 111, .08); border: 1px solid rgba(227, 74, 111, .3); }
.case__col--after { background: rgba(0, 169, 224, .08); border: 1px solid rgba(0, 169, 224, .35); }
.case__col-title { font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.case__col--before .case__col-title { color: #ff8aa5; }
.case__col--after .case__col-title { color: var(--cyan); }
.case dl { margin: 0; display: grid; gap: 12px; }
.case dl > div { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding-bottom: 10px; border-bottom: 1px dashed rgba(255, 255, 255, .12); }
.case dt { font-size: 14px; color: rgba(255, 255, 255, .65); }
.case dd { margin: 0; font-weight: 700; color: var(--white); white-space: nowrap; }
.case dl > .is-total { border-bottom: 0; padding-top: 4px; }
.case dl > .is-total dd { font-size: 22px; }
.case__col--before .is-total dd { color: #ff8aa5; }
.case__col--after .is-total dd { color: var(--cyan); }
.case__result { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border-radius: 14px; overflow: hidden; background: rgba(255, 255, 255, .1); }
.case__result > div { padding: 20px 22px; background: var(--dark); }
.case__result span { display: block; font-size: 13px; color: rgba(255, 255, 255, .6); margin-bottom: 6px; }
.case__result b { font-size: clamp(20px, 1.9vw, 27px); line-height: 1.1; font-weight: 800; color: var(--white); white-space: nowrap; }
.case__result > div:first-child b { color: var(--cyan); }
.case__assumptions { grid-column: 1 / -1; font-size: 14px; color: rgba(255, 255, 255, .65); }
.case__assumptions summary { cursor: pointer; font-weight: 600; color: var(--cyan); }
.case__assumptions ul { margin: 12px 0; padding-left: 18px; list-style: disc; display: grid; gap: 4px; }

.economy__cta { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 8px; padding: 28px clamp(24px, 4vw, 52px); border-radius: var(--radius); border: 1px solid rgba(0, 169, 224, .35); background: rgba(0, 169, 224, .08); }
.economy__cta p { font-size: 18px; font-weight: 600; color: var(--white); max-width: 560px; }
.partner__grid { background: var(--white); }
.calc-section { background: var(--ink); }
/* calculator */
.calc { display: grid; grid-template-columns: 1.15fr 1fr; border-radius: var(--radius); overflow: hidden; background: var(--white); color: var(--text); }
.calc__inputs { padding: clamp(28px, 4vw, 52px); }
.calc__title { font-size: clamp(26px, 2.6vw, 34px); font-weight: 800; color: var(--ink); margin-bottom: 22px; }
.calc__presets { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.calc__preset { padding: 10px 18px; border-radius: 50px; border: 1.5px solid var(--line); font-size: 14px; font-weight: 600; color: var(--ink); transition: all .2s; }
.calc__preset:hover { border-color: var(--cyan); }
.calc__preset.is-active { background: var(--ink); border-color: var(--ink); color: var(--white); }

.range { display: block; margin-bottom: 24px; }
.range__head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 10px; font-size: 15px; font-weight: 600; color: var(--ink); }
.range output { font-size: 20px; font-weight: 800; color: var(--cyan); }
.range__hint { display: block; margin-top: 6px; font-size: 12.5px; color: var(--muted); }
.range input[type="range"] {
    --p: 50%;
    width: 100%;
    height: 6px;
    margin: 0;
    appearance: none;
    -webkit-appearance: none;
    border-radius: 6px;
    background: linear-gradient(90deg, var(--cyan) 0 var(--p), var(--line) var(--p) 100%);
    cursor: pointer;
}
.range input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 26px; height: 26px; border-radius: 50%; background: var(--white); border: 6px solid var(--cyan); box-shadow: 0 4px 12px rgba(0, 169, 224, .4); }
.range input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--white); border: 6px solid var(--cyan); }
.range input:focus-visible { outline: 2px solid var(--cyan); outline-offset: 6px; }

.calc__prices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding-top: 8px; }
.calc__prices label { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--muted); }
.calc__prices input { height: 46px; padding: 0 14px; border: 1.5px solid var(--line); border-radius: 10px; background: var(--gray); font: 600 15px var(--font); color: var(--ink); }
.calc__prices input:focus { outline: none; border-color: var(--cyan); background: var(--white); }

.calc__results { display: flex; flex-direction: column; gap: 22px; padding: clamp(28px, 4vw, 52px); background: linear-gradient(160deg, var(--blue), var(--navy)); color: var(--white); }
.calc__big span { display: block; font-size: 14px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: rgba(255, 255, 255, .7); }
.calc__big b { display: block; margin: 6px 0; font-size: clamp(40px, 4.6vw, 62px); line-height: 1.05; font-weight: 800; letter-spacing: -0.02em; }
.calc__big small { font-size: 16px; color: rgba(255, 255, 255, .8); }
.calc__big strong { color: var(--white); }
.calc__list { margin: 0; display: grid; gap: 10px; }
.calc__list > div { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 10px; border-bottom: 1px solid rgba(255, 255, 255, .15); font-size: 14.5px; }
.calc__list dt { color: rgba(255, 255, 255, .7); }
.calc__list dd { margin: 0; font-weight: 700; text-align: right; }
.calc__eco { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.calc__eco > div { padding: 16px; border-radius: 12px; background: rgba(255, 255, 255, .1); }
.calc__eco b { display: block; font-size: 24px; font-weight: 800; }
.calc__eco span { font-size: 13px; color: rgba(255, 255, 255, .75); line-height: 1.35; }
.calc__results .btn--primary { background: var(--white); color: var(--navy); box-shadow: none; }
.calc__results .btn--primary:hover { background: var(--ink); color: var(--white); }
.calc__note { font-size: 12.5px; color: rgba(255, 255, 255, .6); }

/* =========================================================
   PRICING
   ========================================================= */
.pricing { background: var(--white); }
.pricing__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; align-items: stretch; }
.price-card { position: relative; display: flex; flex-direction: column; padding: 30px 26px; border-radius: var(--radius); background: var(--gray); border: 1.5px solid transparent; transition: transform .35s var(--ease), box-shadow .35s var(--ease); }
.price-card:hover { transform: translateY(-6px); box-shadow: 0 30px 60px -36px rgba(21, 22, 21, .4); }
.price-card--hl { background: var(--white); border-color: var(--cyan); box-shadow: 0 30px 60px -36px rgba(0, 169, 224, .6); }
.price-card__badge { position: absolute; top: -13px; left: 26px; padding: 5px 14px; border-radius: 50px; background: var(--cyan); color: var(--white); font-size: 12px; font-weight: 700; letter-spacing: .04em; }
.price-card__name { font-size: 20px; line-height: 1.25; font-weight: 800; color: var(--ink); margin-bottom: 8px; }
.price-card__desc { font-size: 14px; color: var(--muted); min-height: 42px; margin-bottom: 20px; }
.price-card__price { color: var(--ink); font-size: 18px; font-weight: 600; }
.price-card__price b { font-size: 36px; font-weight: 800; letter-spacing: -0.02em; }
.price-card__price--req b { font-size: 26px; }
.price-card__sub { font-size: 13px; color: var(--muted); margin: 4px 0 22px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.price-card .checklist { font-size: 14px; flex: 1; margin-bottom: 26px; }
.price-card .checklist li + li { margin-top: 10px; }
.pricing__note { margin-top: 24px; text-align: center; font-size: 13.5px; color: var(--muted); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1100px) {
    .pricing__grid { grid-template-columns: 1fr 1fr; }
    .case { grid-template-columns: 1fr; }
    .calc { grid-template-columns: 1fr; }
    .banner__content { grid-template-columns: 1fr; }
    .banner__card { justify-self: start; }
    .banner__trust li:nth-child(n+5) { display: none; }
    .product__track { grid-auto-columns: calc((100% - 20px * 2) / 3); }
    .opportunity__inner { grid-template-columns: 1fr; text-align: center; }
    .sertificat__intro { grid-template-columns: 1fr 1.5fr; }
    .sertificat__badge { grid-column: 1 / -1; flex-direction: row; justify-content: center; }
    .sertificat__cards { grid-template-columns: 1fr; }
    .footer__grid { grid-template-columns: 1fr 1fr; }
    .footer__eco { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
    .how__grid { display: block; }
    .how__visual { position: sticky; top: var(--header-h); z-index: 2; background: #f6f8f9; box-shadow: 0 18px 20px -10px #f6f8f9; }
    .how__sticky { position: static; padding: 8px 0 12px; gap: 8px; }
    .filter-svg { max-width: min(32vh, 260px); }
    .how__legend { font-size: 12px; gap: 6px 12px; }
    .how__steps { padding: 0 0 10vh; }
    .how-step { min-height: 0; padding: 16vh 0 10vh; }
    .two-one-zero { grid-template-columns: 1fr; gap: 14px; }
    .case__compare { grid-template-columns: 1fr; }
    .case__result { grid-template-columns: 1fr; }
    .economy__cta { flex-direction: column; align-items: flex-start; }
    .banner__stats { grid-template-columns: 1fr 1fr; gap: 18px; }
    .cta-band__inner { flex-direction: column; align-items: flex-start; }
    .cta-band__actions { align-items: flex-start; }
    .sticky-cta {
        position: fixed;
        left: 12px; right: 12px; bottom: 12px;
        z-index: 45;
        display: grid;
        grid-template-columns: auto 1fr;
        gap: 10px;
        padding: 8px;
        border-radius: 50px;
        background: rgba(21, 22, 21, .92);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        box-shadow: 0 16px 40px -12px rgba(0, 0, 0, .5);
        transform: translateY(140%);
        transition: transform .4s var(--ease);
    }
    body.show-sticky .sticky-cta { transform: none; }
    body.menu-open .sticky-cta { transform: translateY(140%); }
    .sticky-cta__call { display: flex; align-items: center; gap: 8px; padding: 0 16px 0 4px; color: var(--white); font-weight: 600; font-size: 14px; text-decoration: none; }
    .sticky-cta__call .banner__call-icon { width: 40px; height: 40px; background-size: 18px; animation: none; }
    .sticky-cta .btn { min-height: 48px; }
    .footer { padding-bottom: 96px; }
    :root { --header-h: 66px; }
    .header__phone { display: none; }
    .menu__inner { grid-template-columns: 1fr; }
    .product__track { grid-auto-columns: calc((100% - 20px) / 2); }
    .using__panel { grid-template-columns: 1fr; min-height: 0; }
    .using__media { aspect-ratio: 16 / 10; }
    .concept__step { grid-template-columns: 1fr; gap: 24px; }
    .concept__step:nth-child(even) .concept__text { order: 0; }
    .concept__num { font-size: 88px; margin-bottom: 8px; }
    .review__track { grid-auto-columns: 88%; }
    .sertificat__intro { grid-template-columns: 1fr; }
    .amb-thumbs { grid-template-columns: repeat(6, 150px); overflow-x: auto; scrollbar-width: none; margin-left: calc(var(--gutter) * -1); margin-right: calc(var(--gutter) * -1); padding: 4px var(--gutter); }
    .amb-thumbs::-webkit-scrollbar { display: none; }
    .amb { grid-template-columns: 1fr; }
    .amb__media { min-height: 0; aspect-ratio: 4 / 3.4; }
    .partner__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .project__track { grid-auto-columns: calc((100% - 24px) / 2); }
    .order__inner { grid-template-columns: 1fr; }
    .maps { grid-template-columns: 1fr; }
    .maps__list { padding: 64px var(--gutter) 24px; max-height: none; }
    .maps__items { display: grid; grid-template-columns: 1fr 1fr; column-gap: 24px; }
    .maps__items li + li { border-top: 0; }
    .maps__items li { border-bottom: 1px solid var(--line); }
    .maps__map { height: 440px; }
    .popup--product .popup__content { grid-template-columns: 1fr; }
    .popup__gallery { position: relative; height: min(110vw, 600px); padding: 16px; }
    .popup__thumbs button { width: 56px; height: 56px; }
    .popup__cta { margin: 0 -32px; padding: 14px 32px; }
}

@media (max-width: 640px) {
    .liter-row { grid-template-columns: 1fr auto; gap: 8px 12px; }
    .liter-row__bar { grid-column: 1 / -1; grid-row: 2; }
    .liter-row__val { font-size: 17px; }
    .calc__prices { grid-template-columns: 1fr; }
    .calc__eco { grid-template-columns: 1fr; }
    .pricing__grid { grid-template-columns: 1fr; }
    .banner__title { font-size: 34px; }
    .banner__actions .btn { flex: 1 1 100%; }
    .banner__product { grid-template-columns: 92px 1fr; padding: 14px; }
    .banner__product-name { font-size: 20px; }
    .banner__trust { flex-direction: column; align-items: flex-start; gap: 14px; }
    .banner__trust ul { width: 100%; gap: 8px; }
    .banner__trust li { flex: 1; height: 44px; padding: 4px 8px; }
    .banner__trust li:nth-child(n+4) { display: none; }
    .banner__trust img { height: 32px; }
    .header__order { display: none; }
    .section__head { align-items: center; }
    .section__head .slider-arrow { width: 44px; height: 44px; }
    .h2--line { gap: 16px; }
    .h2--line::after, .section__head--center .h2--line::before { flex-basis: 32px; }
    .section__head:not(.section__head--center) .h2--line::after { display: none; }
    .product__track { grid-auto-columns: 82%; }
    .tabs { flex-wrap: nowrap; justify-content: flex-start; overflow-x: auto; margin-left: calc(var(--gutter) * -1); margin-right: calc(var(--gutter) * -1); padding: 0 var(--gutter); scrollbar-width: none; }
    .tabs::-webkit-scrollbar { display: none; }
    .tabs__btn { flex-shrink: 0; }
    .opportunity__grid { grid-template-columns: 1fr; gap: 36px; }
    .review__track { grid-auto-columns: 92%; }
    .cert-card__img { height: 280px; }
    .cert-card__img img { max-height: 200px; }
    .popup__cta .btn { padding: 14px 26px; }
    .popup--product .rich .checklist { padding: 18px 16px; }
    .facts { grid-template-columns: 1fr 1fr; }
    .partner__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .project__track { grid-auto-columns: 86%; }
    .order-form__row { grid-template-columns: 1fr; }
    .maps__items { grid-template-columns: 1fr; }
    .footer__grid { grid-template-columns: 1fr; }
    .footer__bottom { flex-direction: column; text-align: center; }
}