/* Сайт компании «Видно»: светлые разделы, тёмные акцентные блоки с «LED-свечением», адаптив от 320 px */
:root {
  --bg: #ffffff; --soft: #f4f5f9; --ink: #0f1119; --ink-2: #4a5063; --ink-3: #8a90a3; --line: #e5e7ef;
  --dark: #0b0d14; --dark-2: #141724; --dark-line: rgba(255,255,255,.1); --on-dark: #e9ebf3; --on-dark-2: #9aa0b4;
  --accent: #3d4dff; --accent-2: #6a5cff; --cyan: #22d3ee; --ok: #12a150; --bad: #d63a3a;
  --r: 18px; --shadow: 0 10px 40px rgba(15,17,25,.08);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif; font-size: 16px; line-height: 1.55; color: var(--ink);
  -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); overflow-x: hidden; }
body.menu-open { overflow: hidden; }
img { max-width: 100%; }
a { color: var(--accent); }
h1, h2, h3 { letter-spacing: -.025em; line-height: 1.15; margin: 0; }
.muted { color: var(--ink-3); }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.wrap.narrow { max-width: 820px; }
.ic { width: 18px; height: 18px; flex: none; }

/* кнопки */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; border-radius: 12px; padding: 11px 18px; font: inherit; font-weight: 650; font-size: 15px; text-decoration: none; cursor: pointer; white-space: nowrap; transition: transform .15s, box-shadow .15s, background .15s, border-color .15s; }
.btn .ic { width: 19px; height: 19px; }
.btn-accent { color: #fff; background: linear-gradient(135deg, var(--accent-2), var(--accent)); box-shadow: 0 6px 20px rgba(61,77,255,.32); }
.btn-accent:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(61,77,255,.42); }
.btn-ghost { color: #fff; border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.04); }
.btn-ghost:hover { border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.08); }
.btn-ghost-d { color: var(--ink); border-color: var(--line); background: #fff; }
.btn-ghost-d:hover { border-color: var(--accent); }
.btn-lg { padding: 14px 22px; font-size: 16px; border-radius: 14px; }
.btn-sm { padding: 8px 12px; font-size: 14px; border-radius: 10px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .6; cursor: default; transform: none; }

/* шапка */
.hdr { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.8); backdrop-filter: saturate(180%) blur(16px); -webkit-backdrop-filter: saturate(180%) blur(16px); border-bottom: 1px solid transparent; transition: border-color .2s, box-shadow .2s; }
.hdr.scrolled { border-bottom-color: var(--line); box-shadow: 0 6px 24px rgba(15,17,25,.05); }
.hdr-in { max-width: 1400px; margin: 0 auto; padding: 0 24px; height: 72px; display: flex; align-items: center; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 850; font-size: 21px; letter-spacing: -.03em; color: var(--ink); text-decoration: none; flex: none; }
.logo img { max-height: 36px; display: block; }
.logo-mark { width: 30px; height: 30px; border-radius: 9px; background: conic-gradient(from 210deg, var(--cyan), var(--accent), var(--accent-2), #ff5cae, var(--cyan)); box-shadow: inset 0 0 0 7px var(--ink); }
.hdr-nav { display: flex; align-items: center; gap: 4px; }
.hdr-nav a { color: var(--ink-2); text-decoration: none; font-size: 15px; font-weight: 550; padding: 8px 11px; border-radius: 10px; transition: color .15s, background .15s; white-space: nowrap; }
.hdr-nav a:hover { color: var(--ink); background: var(--soft); }
.hdr-nav .nav-cab { display: none; }
.hdr-acts { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.hdr-phone { display: flex; align-items: center; gap: 7px; color: var(--ink); text-decoration: none; font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }
.hdr-phone .ic { color: var(--ok); }
.hdr-cab { display: flex; align-items: center; gap: 7px; color: var(--ink); text-decoration: none; font-weight: 600; font-size: 15px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 12px; transition: border-color .15s; }
.hdr-cab:hover { border-color: var(--accent); color: var(--accent); }
.hdr-cab { padding: 0; width: 44px; height: 44px; justify-content: center; } .hdr-cab span { display: none; } /* кабинет — иконкой, подпись в подсказке */
.burger { display: none; appearance: none; border: 1px solid var(--line); background: #fff; width: 44px; height: 44px; border-radius: 12px; align-items: center; justify-content: center; color: var(--ink); cursor: pointer; }
.burger .ic { width: 22px; height: 22px; }

/* первый экран */
.hero { position: relative; background: var(--dark); color: var(--on-dark); overflow: hidden; }
.hero-glow { position: absolute; inset: -20% -10% auto auto; width: 70%; height: 140%; background: radial-gradient(closest-side, rgba(106,92,255,.45), transparent 70%), radial-gradient(closest-side at 70% 60%, rgba(34,211,238,.25), transparent 70%); filter: blur(20px); pointer-events: none; }
.hero-in { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; padding-top: 88px; padding-bottom: 96px; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--cyan); margin-bottom: 18px; }
.hero h1 { font-size: clamp(36px, 5.4vw, 64px); font-weight: 850; color: #fff; }
.lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--on-dark-2); margin: 20px 0 32px; max-width: 580px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-facts { list-style: none; padding: 0; margin: 44px 0 0; display: flex; gap: 36px; flex-wrap: wrap; }
.hero-facts li { display: flex; flex-direction: column; }
.hero-facts b { font-size: 26px; font-weight: 800; color: #fff; letter-spacing: -.02em; }
.hero-facts span { font-size: 14px; color: var(--on-dark-2); }
.hero-screen { position: relative; display: flex; flex-direction: column; align-items: center; }
.scr { position: relative; width: 100%; aspect-ratio: 16 / 9; border-radius: 10px; padding: 8px; background: #05060a; box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 40px 120px rgba(61,77,255,.45), 0 0 80px rgba(34,211,238,.18); overflow: hidden; }
.scr-grid { position: absolute; inset: 8px; border-radius: 4px; background:
  linear-gradient(transparent 96%, rgba(0,0,0,.55) 96%) 0 0 / 100% 25%,
  linear-gradient(90deg, transparent 97.5%, rgba(0,0,0,.55) 97.5%) 0 0 / 12.5% 100%,
  linear-gradient(120deg, #2b1cff, #6a5cff 30%, #ff5cae 55%, #22d3ee 80%, #3d4dff);
  background-size: 100% 25%, 12.5% 100%, 300% 300%; animation: led 12s ease-in-out infinite alternate; }
.scr-shine { position: absolute; inset: 0; background: linear-gradient(115deg, transparent 40%, rgba(255,255,255,.12) 50%, transparent 60%); }
.scr-stand { width: 26%; height: 14px; margin-top: 10px; border-radius: 0 0 10px 10px; background: linear-gradient(#1a1d2b, #0e1018); }
@keyframes led { 0% { background-position: 0 0, 0 0, 0% 50%; } 100% { background-position: 0 0, 0 0, 100% 50%; } }
@media (prefers-reduced-motion: reduce) { .scr-grid { animation: none; } :root { scroll-behavior: auto; } }

/* разделы */
.sec { padding: 96px 0; }
.sec-soft { background: var(--soft); }
.sec-dark { background: var(--dark); color: var(--on-dark); position: relative; overflow: hidden; }
.sec-dark::before { content: ''; position: absolute; inset: auto -20% -60% auto; width: 70%; height: 120%; background: radial-gradient(closest-side, rgba(61,77,255,.28), transparent 70%); pointer-events: none; }
.sec-dark > .wrap { position: relative; }
.sec-dark h2, .sec-dark h3 { color: #fff; }
.sec-dark .muted { color: var(--on-dark-2); }
.sec-h { margin-bottom: 40px; max-width: 700px; }
.sec-h h2 { font-size: clamp(30px, 3.6vw, 44px); font-weight: 820; }
.sec-h p { margin: 12px 0 0; font-size: 17px; }

.sol { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.sol-c { border: 1px solid var(--line); border-radius: var(--r); padding: 26px 22px; background: #fff; transition: transform .2s, box-shadow .2s, border-color .2s; }
.sol-c:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #d6daf0; }
.sol-ic { width: 46px; height: 46px; padding: 11px; border-radius: 14px; color: var(--accent); background: linear-gradient(135deg, #eef0ff, #e7fbff); margin-bottom: 18px; }
.sol-c h3 { font-size: 19px; margin-bottom: 8px; }
.sol-c p { margin: 0; color: var(--ink-2); font-size: 15px; }
.about { margin-top: 32px; padding: 26px 28px; border-radius: var(--r); background: var(--soft); color: var(--ink-2); font-size: 17px; }

/* калькулятор */
.calc { background: rgba(255,255,255,.04); border: 1px solid var(--dark-line); border-radius: 22px; padding: 26px; backdrop-filter: blur(6px); }
.calc-in { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 22px; }
.calc .fld span { color: var(--on-dark-2); }
.calc .fld input { width: 130px; background: rgba(255,255,255,.06); border-color: var(--dark-line); color: #fff; font-size: 18px; font-weight: 700; }
.calc-x { font-size: 22px; color: var(--on-dark-2); padding-bottom: 12px; }
.seg { display: inline-flex; background: rgba(255,255,255,.06); border: 1px solid var(--dark-line); border-radius: 12px; padding: 4px; margin-left: auto; }
.seg label { cursor: pointer; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: block; padding: 9px 16px; border-radius: 9px; font-weight: 600; font-size: 15px; color: var(--on-dark-2); transition: background .15s, color .15s; }
.seg input:checked + span { background: #fff; color: var(--ink); }
.seg input:focus-visible + span { outline: 2px solid var(--cyan); }
.calc-out { display: grid; gap: 10px; transition: opacity .2s; min-height: 80px; }
.calc-out.busy { opacity: .5; }
.calc-wait { color: var(--on-dark-2); padding: 18px 0; }
.calc-wait a { color: var(--cyan); }
.opt { display: grid; grid-template-columns: 110px 1fr auto auto; gap: 18px; align-items: center; padding: 16px 18px; border-radius: 14px; background: rgba(255,255,255,.05); border: 1px solid var(--dark-line); transition: border-color .15s, background .15s; }
.opt:hover { border-color: rgba(106,92,255,.6); background: rgba(106,92,255,.08); }
.opt-p { font-size: 26px; font-weight: 850; color: #fff; letter-spacing: -.02em; line-height: 1; }
.opt-p small { display: block; font-size: 12px; font-weight: 500; color: var(--on-dark-2); letter-spacing: 0; margin-top: 4px; }
.opt-d { display: flex; flex-direction: column; font-size: 14px; color: var(--on-dark-2); }
.opt-d b { color: #fff; font-size: 16px; }
.opt-pr { font-size: 20px; font-weight: 800; color: #fff; white-space: nowrap; font-variant-numeric: tabular-nums; }
.calc-note { margin: 16px 0 0; font-size: 13px; color: var(--on-dark-2); }

/* работы */
.works { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.work { display: block; color: inherit; text-decoration: none; border-radius: var(--r); overflow: hidden; background: #fff; border: 1px solid var(--line); transition: transform .2s, box-shadow .2s; }
.work:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.work-img { position: relative; aspect-ratio: 4 / 3; background: var(--soft); overflow: hidden; }
.work-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s; }
.work:hover .work-img img { transform: scale(1.04); }
.work-n { position: absolute; right: 10px; bottom: 10px; background: rgba(15,17,25,.7); color: #fff; font-size: 12px; padding: 3px 9px; border-radius: 10px; }
.work-b { padding: 16px 18px 18px; }
.work-t { font-weight: 700; font-size: 17px; line-height: 1.3; }
.work-m { font-size: 14px; color: var(--ink-3); margin-top: 4px; }
.work-s { font-size: 14px; color: var(--ink-2); margin-top: 6px; }

/* этапы */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: s; }
.steps li { position: relative; background: #fff; border-radius: var(--r); padding: 24px 20px; border: 1px solid var(--line); }
.st-n { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 11px; background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #fff; font-weight: 800; margin-bottom: 16px; }
.steps h3 { font-size: 17px; margin-bottom: 8px; }
.steps p { margin: 0; font-size: 14.5px; color: var(--ink-2); }
.guar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; }
.guar-c, .cont-c { display: flex; gap: 14px; align-items: flex-start; padding: 20px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); color: inherit; text-decoration: none; }
.g-ic { width: 42px; height: 42px; padding: 10px; border-radius: 12px; background: #eef0ff; color: var(--accent); flex: none; }
.guar-c b, .cont-c b { display: block; font-size: 16px; }
.guar-c span { font-size: 14px; color: var(--ink-2); }

/* вопросы */
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 20px 40px 20px 0; font-weight: 650; font-size: 17px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ''; position: absolute; right: 6px; top: 50%; width: 12px; height: 12px; border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: translateY(-75%) rotate(45deg); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-25%) rotate(-135deg); }
.faq details > div { padding: 0 0 20px; color: var(--ink-2); }

/* заявка */
.order-in { display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: start; }
.order-txt h2 { font-size: clamp(30px, 3.6vw, 44px); font-weight: 820; margin-bottom: 14px; }
.order-txt > p { font-size: 17px; margin: 0 0 22px; }
.order-list { list-style: none; padding: 0; margin: 0 0 28px; display: grid; gap: 10px; }
.order-list li { display: flex; gap: 10px; align-items: center; color: var(--on-dark); }
.order-list .ic { color: var(--cyan); }
.order-phone { display: inline-flex; align-items: center; gap: 10px; font-size: 24px; font-weight: 800; color: #fff; text-decoration: none; font-variant-numeric: tabular-nums; }
.order-phone .ic { width: 24px; height: 24px; color: var(--cyan); }
.msg-links { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.msg-links a { display: inline-flex; gap: 8px; align-items: center; color: #fff; text-decoration: none; border: 1px solid var(--dark-line); padding: 9px 14px; border-radius: 12px; font-weight: 600; }
.msg-links a:hover { border-color: rgba(255,255,255,.4); }
.order { background: #fff; color: var(--ink); border-radius: 22px; padding: 28px; box-shadow: 0 30px 80px rgba(0,0,0,.35); display: grid; gap: 14px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.fld { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--ink-2); font-weight: 550; }
.fld input, .fld textarea { font: inherit; font-size: 16px; color: var(--ink); background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; width: 100%; transition: border-color .15s, box-shadow .15s; }
.fld textarea { resize: vertical; min-height: 110px; }
.fld input:focus, .fld textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px rgba(61,77,255,.12); }
.photos { display: flex; gap: 8px; flex-wrap: wrap; }
.ph { position: relative; }
.ph img { width: 76px; height: 76px; object-fit: cover; border-radius: 10px; display: block; }
.ph button { position: absolute; top: 3px; right: 3px; width: 22px; height: 22px; border: 0; border-radius: 6px; background: rgba(15,17,25,.7); color: #fff; cursor: pointer; }
.add-ph { width: 76px; height: 76px; display: grid; place-items: center; border: 1.5px dashed #c6cbdb; border-radius: 10px; color: var(--ink-3); font-size: 13px; cursor: pointer; transition: border-color .15s, color .15s; }
.add-ph:hover { border-color: var(--accent); color: var(--accent); }
.add-ph.busy { opacity: .5; pointer-events: none; }
.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; color: var(--ink-2); cursor: pointer; }
.consent input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }
.form-err { background: #fdeaea; color: var(--bad); border-radius: 10px; padding: 10px 14px; font-size: 14px; }
.calc-pick { display: flex; gap: 10px; align-items: center; justify-content: space-between; background: #eef0ff; color: var(--ink); border-radius: 12px; padding: 10px 12px 10px 14px; font-size: 14px; }
.calc-pick button { border: 0; background: none; cursor: pointer; color: var(--ink-3); font-size: 16px; }
.done { text-align: center; padding: 20px 6px; }
.done-ic { width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 16px; display: grid; place-items: center; font-size: 30px; color: #fff; background: linear-gradient(135deg, #22c55e, var(--ok)); box-shadow: 0 10px 30px rgba(18,161,80,.35); }
.done h3 { font-size: 24px; margin-bottom: 8px; }
.done p { color: var(--ink-2); margin: 0 0 12px; }
.done .btn { margin-top: 8px; }

/* контакты */
.cont { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.cont-c span { font-size: 13px; color: var(--ink-3); }
a.cont-c:hover { border-color: var(--accent); }
.cont-cab { background: linear-gradient(135deg, #f3f4ff, #eefcff); border-color: #d8dcff; }
.cont-cab b { color: var(--accent); }

/* отзывы */
.revs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.rev { margin: 0; padding: 24px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); display: flex; flex-direction: column; gap: 14px; }
.stars { color: #f5b301; font-size: 18px; letter-spacing: 2px; } .stars i { color: #e3e6ee; font-style: normal; }
.rev blockquote { margin: 0; color: var(--ink-2); font-size: 15.5px; line-height: 1.6; flex: 1; }
.rev figcaption { display: flex; flex-direction: column; gap: 2px; font-size: 14px; }
.rev figcaption span { color: var(--ink-3); } .rev figcaption a { margin-top: 6px; text-decoration: none; font-weight: 600; }

/* плавающая кнопка связи */
.fab { position: fixed; right: 20px; bottom: 20px; z-index: 60; display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.fab-btn { width: 60px; height: 60px; border-radius: 50%; border: 0; cursor: pointer; color: #fff; background: linear-gradient(135deg, var(--accent-2), var(--accent)); box-shadow: 0 10px 30px rgba(61,77,255,.45); display: grid; place-items: center; transition: transform .2s; position: relative; }
.fab-btn::before { content: ''; position: absolute; inset: 0; border-radius: 50%; animation: pulse 2.6s infinite; }
.fab.open .fab-btn::before { animation: none; }
.fab-btn svg { width: 26px; height: 26px; position: absolute; transition: transform .25s, opacity .25s; }
.fab-i2 { opacity: 0; transform: rotate(-90deg); }
.fab.open .fab-i1 { opacity: 0; transform: rotate(90deg); } .fab.open .fab-i2 { opacity: 1; transform: none; }
.fab-btn:hover { transform: scale(1.06); }
.fab-menu { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; pointer-events: none; }
.fab-menu a { display: flex; align-items: center; gap: 10px; padding: 11px 16px 11px 12px; border-radius: 14px; background: #fff; color: var(--ink); text-decoration: none; font-weight: 650; font-size: 15px; box-shadow: 0 8px 28px rgba(15,17,25,.18); opacity: 0; transform: translateY(10px) scale(.96); transition: opacity .2s, transform .2s; }
.fab-menu a .ic { width: 22px; height: 22px; }
.fab-tg .ic { color: #229ED9; } .fab-wa .ic { color: #25D366; } .fab-ph .ic { color: var(--ok); } .fab-or .ic { color: var(--accent); }
.fab.open .fab-menu { pointer-events: auto; }
.fab.open .fab-menu a { opacity: 1; transform: none; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(61,77,255,.45); } 70% { box-shadow: 0 0 0 16px rgba(61,77,255,0); } 100% { box-shadow: 0 0 0 0 rgba(61,77,255,0); } }
@media (prefers-reduced-motion: reduce) { .fab-btn::before { animation: none; } }

/* подвал */
.ftr { background: var(--dark); color: var(--on-dark); padding: 48px 0 28px; }
.ftr-in { display: flex; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.ftr-brand { font-weight: 850; font-size: 20px; color: #fff; margin-bottom: 4px; }
.ftr .muted { color: var(--on-dark-2); }
.ftr-req { font-size: 13px; margin-top: 10px; max-width: 520px; }
.ftr-links { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.ftr-links a { color: var(--on-dark); text-decoration: none; }
.ftr-links a:hover { color: #fff; text-decoration: underline; }
.ftr-copy { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--dark-line); font-size: 13px; }

/* внутренние страницы */
.page { padding: 36px 0 90px; min-height: 60vh; }
.page-h { font-size: clamp(28px, 4vw, 44px); font-weight: 820; margin: 8px 0 28px; }
.back { display: inline-block; color: var(--ink-3); text-decoration: none; font-size: 15px; }
.back:hover { color: var(--accent); }
.wk { display: grid; grid-template-columns: 1fr 320px; gap: 28px; align-items: start; }
.gal-main { position: relative; border-radius: var(--r); overflow: hidden; background: var(--soft); aspect-ratio: 16 / 10; display: grid; place-items: center; }
.gal-main img { width: 100%; height: 100%; object-fit: contain; background: #0b0d14; }
.gal-main.empty { color: var(--ink-3); }
.gal-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border-radius: 50%; border: 0; background: rgba(255,255,255,.9); color: var(--ink); font-size: 28px; line-height: 1; cursor: pointer; box-shadow: 0 4px 16px rgba(0,0,0,.2); }
.gal-nav.prev { left: 12px; } .gal-nav.next { right: 12px; }
.gal-th { display: flex; gap: 8px; margin-top: 10px; overflow-x: auto; padding-bottom: 4px; }
.gal-th button { flex: none; border: 2px solid transparent; padding: 0; border-radius: 10px; overflow: hidden; cursor: pointer; background: none; opacity: .65; transition: opacity .15s, border-color .15s; }
.gal-th button.on { border-color: var(--accent); opacity: 1; }
.gal-th img { width: 92px; height: 64px; object-fit: cover; display: block; }
.wk-side { position: sticky; top: 92px; display: grid; gap: 12px; padding: 22px; border-radius: var(--r); border: 1px solid var(--line); }
.facts { margin: 0 0 6px; display: grid; gap: 12px; }
.facts dt { font-size: 13px; color: var(--ink-3); }
.facts dd { margin: 0; font-weight: 600; }
.wk-desc { margin-top: 32px; font-size: 17px; color: var(--ink-2); max-width: 820px; }
.more-h { font-size: 28px; margin: 56px 0 20px; }
.prose h2 { font-size: 20px; margin: 28px 0 8px; }
.prose p { color: var(--ink-2); margin: 0 0 12px; }
.nf { text-align: center; padding-top: 40px; }

/* появление */
.rv { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.rv.in { opacity: 1; transform: none; }

/* адаптив */
@media (max-width: 1500px) { .hdr-phone span { display: none; } .hdr-phone { width: 44px; height: 44px; justify-content: center; border: 1px solid var(--line); border-radius: 12px; } }
@media (max-width: 1320px) {
  .hdr-in { gap: 16px; }
  .hdr-nav a { padding: 8px 8px; font-size: 14.5px; }
  .hdr-cab span { display: none; } .hdr-cab { padding: 0; width: 44px; height: 44px; justify-content: center; }
}
@media (max-width: 1100px) {
  .hdr-phone span { display: none; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .sol { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1260px) {
  .hdr { backdrop-filter: none; -webkit-backdrop-filter: none; background: #fff; } /* иначе выпадающее меню не растягивается на экран */
  .hdr-in { height: 64px; gap: 12px; }
  .burger { display: inline-flex; }
  .hdr-cab span { display: none; } .hdr-cab { padding: 0; width: 44px; height: 44px; justify-content: center; }
  .hdr-phone { width: 44px; height: 44px; justify-content: center; border: 1px solid var(--line); border-radius: 12px; }
  .hdr-nav { position: fixed; inset: 64px 0 0 0; background: #fff; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 20px 40px; transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; overflow-y: auto; }
  .hdr-nav.open { opacity: 1; transform: none; pointer-events: auto; }
  .hdr-nav a { font-size: 20px; padding: 16px 4px; border-bottom: 1px solid var(--line); border-radius: 0; color: var(--ink); }
  .hdr-nav .nav-cab { display: flex; gap: 10px; align-items: center; margin-top: 18px; border: 0; color: var(--accent); }
  .hero-in { grid-template-columns: 1fr; padding-top: 56px; padding-bottom: 64px; gap: 40px; }
  .hero-screen { max-width: 520px; width: 100%; margin: 0 auto; }
  .order-in { grid-template-columns: 1fr; gap: 32px; }
  .works { grid-template-columns: repeat(2, 1fr); }
  .guar { grid-template-columns: 1fr; }
  .revs { grid-template-columns: 1fr 1fr; }
  .wk { grid-template-columns: 1fr; }
  .wk-side { position: static; }
  .opt { grid-template-columns: 84px 1fr; }
  .opt-pr { grid-column: 2; }
  .opt .btn { grid-column: 1 / -1; }
  .seg { margin-left: 0; }
}
@media (max-width: 640px) {
  :root { scroll-padding-top: 72px; }
  .wrap { padding: 0 16px; }
  .hdr-in { padding: 0 16px; }
  .hdr-cta { display: none; }
  .sec { padding: 64px 0; }
  .sec-h { margin-bottom: 28px; }
  .hero-facts { gap: 22px 28px; margin-top: 32px; }
  .hero-facts b { font-size: 21px; }
  .hero-cta .btn { flex: 1 1 100%; }
  .sol, .steps, .works, .grid2, .revs { grid-template-columns: 1fr; }
  .fab { right: 14px; bottom: 14px; } .fab-btn { width: 56px; height: 56px; }
  .calc { padding: 18px; border-radius: 18px; }
  .calc-in { gap: 10px; }
  .calc .fld { flex: 1; } .calc .fld input { width: 100%; }
  .seg { width: 100%; } .seg label { flex: 1; text-align: center; }
  .opt { padding: 14px; gap: 10px 14px; }
  .opt-p { font-size: 22px; }
  .order { padding: 20px; border-radius: 18px; }
  .order-phone { font-size: 21px; }
  .ftr-links { align-items: flex-start; }
  .gal-nav { width: 38px; height: 38px; font-size: 22px; }
}