:root {
  --bg: #fffaf2;
  --bg-alt: #fdf0d4;
  --surface: #ffffff;
  --ink: #0a5752;
  --ink-soft: #3d6b68;
  --line: #e9e0c9;
  --accent: #ff5619;
  --accent-dark: #e0430c;
  --teal: #4d908e;
  --sun: #faac00;
  --radius: 22px;
  --shadow: 0 18px 40px -22px rgba(10, 87, 82, .35);
  --font-head: "Unbounded", "Nunito", system-ui, sans-serif;
  --font-body: "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 18px/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2 { font-family: var(--font-head); font-weight: 700; line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
p { margin: 0 0 1em; }
.container { width: min(1160px, 100% - 32px); margin-inline: auto; }
.center { text-align: center; margin-top: 2rem; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .85em 1.6em; border-radius: 999px; border: 2px solid var(--accent);
  background: var(--accent); color: #fff; font-weight: 800; text-decoration: none;
  transition: transform .15s, background .15s;
}
.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn-small { padding: .5em 1.2em; font-size: .95rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255, 250, 242, .9); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; text-decoration: none; }
.logo img { height: 40px; width: auto; }
.footer-brand { display: inline-flex; align-items: center; gap: .6rem; }
.nav { display: flex; align-items: center; gap: 1.6rem; }
.nav a:not(.btn) { text-decoration: none; font-weight: 700; color: var(--ink-soft); white-space: nowrap; }
.nav a:not(.btn):hover, .nav a[aria-current] { color: var(--ink); }
.menu-toggle {
  display: none; font: 700 1rem var(--font-body); color: var(--ink);
  background: none; border: 2px solid var(--ink); border-radius: 999px; padding: .4em 1em; cursor: pointer;
}

/* Hero */
.hero { padding: clamp(2.5rem, 6vw, 5rem) 0; position: relative; overflow: hidden; background: #fff; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.eyebrow { display: inline-block; font-weight: 800; color: var(--accent); text-transform: uppercase; letter-spacing: .12em; font-size: .85rem; margin-bottom: 1rem; }
.lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 36em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.8rem 0 2.2rem; }
.hero-facts { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 1.6rem; color: var(--ink-soft); font-size: .95rem; }
.hero-facts strong { display: block; font: 700 1.7rem var(--font-head); color: var(--ink); }
.hero-media { margin: 0; position: relative; }
.hero-media img { display: block; width: 116%; max-width: none; height: auto; margin-inline: -8%; }

/* Features */
.features { padding: clamp(2rem, 5vw, 4rem) 0; }
.feature {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 5vw, 4.5rem);
  align-items: center; padding: clamp(1.5rem, 4vw, 3rem) 0;
}
.feature-reverse .feature-media { order: 2; }
.feature-media { margin: 0; }
.feature-media img { width: 100%; height: auto; border-radius: var(--radius); box-shadow: var(--shadow); background: var(--bg-alt); aspect-ratio: 4 / 3; object-fit: cover; }
.feature-media-plain img { background: none; box-shadow: none; border-radius: 0; aspect-ratio: auto; object-fit: contain; }
.feature-media-card img { aspect-ratio: auto; object-fit: contain; background: none; max-width: 420px; margin-inline: auto; border-radius: 0; box-shadow: none; }
.feature-num { font: 700 .9rem var(--font-head); color: var(--accent); display: block; margin-bottom: .6rem; }
.feature-text > p { color: var(--ink-soft); }
.checks { list-style: none; padding: 0; margin: 1.2rem 0 0; display: grid; gap: .65rem; }
.checks li { position: relative; padding-left: 2rem; font-weight: 600; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: .3em; width: 1.1rem; height: 1.1rem; border-radius: 50%;
  background: var(--teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 80% no-repeat;
}
.tags { list-style: none; padding: 0; margin: 1rem 0 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.tags li { padding: .35em .95em; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-weight: 700; font-size: .95rem; }
.tags li:nth-child(3n+1) { border-color: var(--accent); }
.tags li:nth-child(3n+2) { border-color: var(--sun); }
.tags li:nth-child(3n) { border-color: var(--teal); }

.build-icons { list-style: none; padding: 0; margin: 1.2rem 0 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: .8rem; max-width: 520px; }
.build-icons li { display: flex; flex-direction: column; align-items: center; gap: .35rem; font-weight: 700; font-size: .9rem; text-align: center; }
.build-icons img { width: 100%; max-width: 64px; height: auto; }
@media (max-width: 520px) { .build-icons { grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 300px; } }

/* Gallery */
.gallery-section { padding: clamp(3rem, 6vw, 5rem) 0; background: var(--bg-alt); }
.gallery-page { background: var(--bg); min-height: 70vh; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 2.2rem; }
.section-head p { color: var(--ink-soft); }
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.gallery-item {
  position: relative; padding: 0; border: 0; cursor: zoom-in; border-radius: 16px; overflow: hidden;
  background: var(--surface); aspect-ratio: 1; box-shadow: 0 8px 20px -14px rgba(10, 87, 82, .45);
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.gallery-item:hover img, .gallery-item:focus-visible img { transform: scale(1.05); }
.gallery-item:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.gallery-item span {
  position: absolute; inset: auto 0 0 0; padding: 1.6rem .8rem .6rem; text-align: left;
  color: #fff; font: 700 .9rem var(--font-body);
  background: linear-gradient(transparent, rgba(5, 40, 38, .75)); opacity: 0; transition: opacity .2s;
}
.gallery-item:hover span, .gallery-item:focus-visible span { opacity: 1; }
.gallery-empty { grid-column: 1 / -1; text-align: center; color: var(--ink-soft); }
.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; margin-bottom: 1.8rem; }
.filters button {
  font: 700 .95rem var(--font-body); padding: .45em 1.1em; border-radius: 999px; cursor: pointer;
  border: 2px solid var(--line); background: var(--surface); color: var(--ink);
}
.filters button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 50; background: rgba(5, 40, 38, .94);
  display: grid; grid-template-columns: 64px 1fr 64px; align-items: center;
}
.lightbox[hidden] { display: none; }
.lightbox figure { margin: 0; grid-column: 2; text-align: center; }
.lightbox img { max-height: 82vh; max-width: 100%; margin: 0 auto; border-radius: 12px; }
.lightbox figcaption { color: #e9ecf3; margin-top: .8rem; font-weight: 600; }
.lightbox button { background: none; border: 0; color: #fff; font-size: 3rem; cursor: pointer; line-height: 1; opacity: .8; }
.lightbox button:hover { opacity: 1; }
.lb-close { position: absolute; top: 12px; right: 18px; }
.lb-prev { grid-column: 1; }
.lb-next { grid-column: 3; }

/* Buy */
.buy { padding: clamp(3rem, 6vw, 5rem) 0; }
.buy-inner {
  background: var(--ink); color: #fff; border-radius: 32px; padding: clamp(2rem, 5vw, 3.5rem);
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 2rem; align-items: center;
}
.buy-inner p { color: #cfe3e1; margin: 0; }
.buy-links { display: grid; gap: .8rem; }
.shop {
  display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.4rem; border-radius: 16px;
  font: 700 1.1rem var(--font-head); text-decoration: none; color: #fff; transition: transform .15s;
}
.shop::after { content: "→"; }
.shop:hover { transform: translateX(4px); }
.shop-wb { background: #a73afd; }
.shop-ozon { background: #005bff; }
.shop-vk { background: #0077ff; color: #fff; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 1.6rem 0; color: var(--ink-soft); font-size: .95rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

/* Narrow desktop: tighten header nav */
@media (min-width: 821px) and (max-width: 1000px) {
  .nav { gap: 1rem; }
  .nav a:not(.btn) { font-size: .9rem; }
  .nav .btn { padding-inline: 1rem; }
}

/* Mobile */
@media (max-width: 820px) {
  .menu-toggle { display: block; }
  .nav {
    position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line); padding: .5rem 16px 1rem; display: none;
  }
  .nav.open { display: flex; }
  .nav a:not(.btn) { padding: .8rem 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: .8rem; }
  .hero-inner, .feature, .buy-inner { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .hero-media img { width: 112%; margin-inline: -6%; }
  .feature-reverse .feature-media { order: 0; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .gallery-item span { opacity: 1; font-size: .8rem; }
  .lightbox { grid-template-columns: 40px 1fr 40px; }
  .lightbox button { font-size: 2.2rem; }
}

/* Kits */
.kits { padding: clamp(3rem, 6vw, 5rem) 0; background: var(--bg-alt); border-block: 1px solid var(--line); }
.kits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.kit {
  position: relative; display: flex; flex-direction: column; gap: .4rem;
  padding: 1.6rem; border-radius: var(--radius); background: var(--bg); border: 1px solid var(--line);
}
.kit h3 { font: 700 1.15rem/1.3 var(--font-head); margin: .6rem 0 0; text-wrap: balance; }
.kit-lead { color: var(--ink-soft); margin: 0; }
.kit-art { width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; }
.kit-art { position: relative; z-index: 1; transform-origin: 50% 70%; transition: transform .35s cubic-bezier(.2, .8, .3, 1.2), filter .35s ease; }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .kit:hover .kit-art { transform: scale(1.08) translateY(-8px); filter: drop-shadow(0 18px 22px rgba(10, 87, 82, .28)); }
}
.kit-badge {
  position: absolute; top: 1rem; right: 1rem; z-index: 1; padding: .25em .8em; border-radius: 999px;
  background: var(--sun); color: var(--ink); font-weight: 800; font-size: .8rem;
}
.kit-spec { display: grid; gap: .3rem; margin: auto 0 0; padding-top: 1rem; border-top: 1px dashed var(--line); }
.kit-spec div { display: flex; justify-content: space-between; gap: 1rem; }
.kit-spec dt { color: var(--ink-soft); }
.kit-total { padding-top: .3rem; margin-top: .2rem; border-top: 1px dashed var(--line); font-weight: 800; }
.kit-spec dd { margin: 0; font: 700 1.1rem var(--font-head); font-variant-numeric: tabular-nums; }
.kit-spec, .kit-total { border-top-color: rgba(10, 87, 82, .25) !important; }
.kit-grey { background: linear-gradient(150deg, #c9cdcf 25%, #faac00 115%); border-color: #b9bec1; }
.kit-glow { background: linear-gradient(150deg, #c8efb4 25%, #ff8a4c 115%); border-color: #b0e29a; }
.kit-white { background: linear-gradient(150deg, #ffffff 25%, #7fd0f0 115%); border-color: #cfe9f3; }
.kit .kit-lead, .kit .kit-spec dt { color: #2f4f4c; }
.kit-glow .kit-badge { background: var(--ink); color: #fff; }
@media (max-width: 820px) {
  .kits-grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
}


/* Instructions section */
.docs-section { padding: clamp(3rem, 6vw, 5rem) 0; }
.docs-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1rem, 3vw, 2rem); max-width: 960px; margin: 0 auto; }
.doc-card { display: flex; flex-direction: column; gap: .6rem; text-decoration: none; color: var(--ink); }
.doc-card img { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); box-shadow: var(--shadow); background: #fff; transition: transform .2s; }
.doc-card:hover img { transform: translateY(-4px); }
.doc-title { display: flex; align-items: flex-start; gap: .55rem; font-weight: 800; line-height: 1.3; margin-top: .4rem; }
.doc-title .dot { flex: none; width: 14px; height: 14px; border-radius: 50%; margin-top: .2em; }
.doc-meta { color: var(--accent); font-weight: 700; font-size: .95rem; padding-left: calc(14px + .55rem); }
@media (max-width: 820px) {
  .docs-grid { grid-template-columns: repeat(3, minmax(220px, 1fr)); overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 1rem; }
  .doc-card { scroll-snap-align: start; }
}

/* Reviews */
.reviews-section { padding: clamp(3rem, 6vw, 5rem) 0; background: var(--bg-alt); border-block: 1px solid var(--line); }
.ratings { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; margin: -0.6rem 0 2.2rem; }
.rating { display: grid; grid-template-columns: auto auto; column-gap: .9rem; align-items: baseline; padding: .8rem 1.3rem; border-radius: 18px; background: #fff; border: 1px solid var(--line); text-decoration: none; color: var(--ink); transition: transform .15s; }
.rating:hover { transform: translateY(-2px); }
.rating-src { font-weight: 800; }
.rating-ozon .rating-src { color: #005bff; }
.rating-wb .rating-src { color: #a73afd; }
.rating-score { font: 700 1.5rem var(--font-head); color: var(--ink); grid-row: span 2; align-self: center; }
.rating-count { color: var(--ink-soft); font-size: .9rem; grid-column: 1; }
.reviews-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.2rem; align-items: start; }
.review { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 1.3rem 1.4rem; box-shadow: var(--shadow); }
.review[hidden] { display: none; }
.review-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: .7rem; }
.stars { color: var(--sun); letter-spacing: .1em; font-size: 1.1rem; }
.review-src { font-size: .8rem; font-weight: 800; color: #fff; padding: .2em .7em; border-radius: 999px; }
.review-src.review-wb { background: #a73afd; }
.review-src.review-ozon { background: #005bff; }
.review-text p { margin: 0 0 .5em; }
.review-text.clamped { display: -webkit-box; -webkit-line-clamp: 7; -webkit-box-orient: vertical; overflow: hidden; }
.review-more { background: none; border: 0; padding: 0; font: 700 .95rem var(--font-body); color: var(--accent); cursor: pointer; }
.review-author { margin: .8rem 0 0; color: var(--ink-soft); font-size: .95rem; }
.review-author strong { color: var(--ink); }
@media (max-width: 960px) { .reviews-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .reviews-grid { grid-template-columns: 1fr; } }