/* ALVISPLAST — дизайн-система */
:root {
  --ink: #2b2f33;        /* графит */
  --ink-2: #343a40;
  --ink-3: #424950;
  --pp: #8b9298;
  --pp-light: #c7cbcf;
  --paper: #ebeae5;
  --paper-2: #f4f3ef;
  --white: #ffffff;
  --signal: #e2581c;
  --signal-deep: #b8440f;
  --on-signal: #16191c;  /* текст на оранжевом — почти чёрный ради контраста */

  --on-ink: #eef0f1;
  --on-ink-muted: #9aa1a7;
  --on-paper: #121416;
  --on-paper-muted: #575d63;

  --line-ink: rgba(255, 255, 255, 0.12);
  --line-paper: rgba(18, 20, 22, 0.14);

  --f-sans: "Onest", "Segoe UI", system-ui, sans-serif;
  --f-accent: "Satoshi", "Onest", system-ui, -apple-system, sans-serif;

  --gutter: clamp(16px, 4vw, 48px);
  --maxw: 1360px;
  --header-h: 72px;
  --r: 4px;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  font-family: var(--f-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--on-paper);
  background: var(--paper-2);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, input, textarea { font: inherit; color: inherit; }
ul { list-style: none; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Типографика ---------- */
.h-display {
  font-weight: 800;
  font-size: clamp(2.5rem, 6.2vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}
.h-1 { font-weight: 750; font-size: clamp(2.1rem, 4.4vw, 3.6rem); line-height: 1.02; letter-spacing: -0.03em; }
.h-2 { font-weight: 700; font-size: clamp(1.7rem, 3.2vw, 2.6rem); line-height: 1.08; letter-spacing: -0.025em; }
.h-3 { font-weight: 700; font-size: clamp(1.25rem, 1.9vw, 1.55rem); line-height: 1.2; letter-spacing: -0.015em; }
.lead { font-size: clamp(1.05rem, 1.4vw, 1.25rem); line-height: 1.55; color: var(--on-paper-muted); max-width: 36em; }
.on-ink .lead { color: var(--on-ink-muted); }
.prose p + p { margin-top: 1em; }
.prose p { max-width: 38em; }
.muted { color: var(--on-paper-muted); }
.on-ink .muted { color: var(--on-ink-muted); }

/* ---------- Поверхности ---------- */
.on-ink { background: var(--ink); color: var(--on-ink); }
.on-ink-2 { background: var(--ink-2); color: var(--on-ink); }
.on-paper { background: var(--paper); color: var(--on-paper); }
.on-paper-2 { background: var(--paper-2); color: var(--on-paper); }
.on-white { background: var(--white); color: var(--on-paper); }

.section { padding: clamp(72px, 10vw, 140px) 0; }
.section--tight { padding: clamp(56px, 7vw, 96px) 0; }

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 26px;
  border-radius: var(--r);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s, transform .2s;
  white-space: nowrap;
}
.btn .arr { transition: transform .2s; }
.btn:hover .arr { transform: translateX(4px); }
.btn--signal { background: var(--signal); color: var(--on-signal); }
.btn--signal:hover { background: #f06a2e; }
.btn--ink { background: var(--ink); color: var(--on-ink); }
.btn--ink:hover { background: var(--ink-3); }
.btn--line { border-color: var(--line-paper); color: var(--on-paper); background: transparent; }
.btn--line:hover { border-color: var(--on-paper); }
.on-ink .btn--line, .on-ink-2 .btn--line { border-color: rgba(255,255,255,.28); color: var(--on-ink); }
.on-ink .btn--line:hover, .on-ink-2 .btn--line:hover { border-color: var(--on-ink); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; text-decoration: none;
  border-bottom: 1px solid currentColor; padding-bottom: 2px;
}
.link-arrow .arr { transition: transform .2s; }
.link-arrow:hover .arr { transform: translateX(4px); }

[hidden] { display: none !important; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 200; background: var(--signal); color: var(--on-signal); padding: 10px 16px; border-radius: var(--r); font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; }

/* ---------- Изображение изделия ---------- */
/* --mh ограничивает высоту изображения, --ar — его пропорция (ширина/высота) */
.pfig { position: relative; width: min(100%, calc(var(--mh, 100000px) * var(--ar, 1))); margin: 0 auto; }
.pfig img { width: 100%; height: auto; }

.badge {
  display: inline-block; justify-self: start; align-self: start;
  font-size: 13px; font-weight: 600;
  padding: 5px 10px; border-radius: 2px;
  background: var(--signal); color: var(--on-signal);
}

/* ---------- Шапка ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--ink);
  color: var(--on-ink);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, background-color .25s;
}
.site-header.is-scrolled { border-bottom-color: var(--line-ink); }
.site-header--overlay:not(.is-scrolled) { background: transparent; }
.header-in { height: 100%; display: flex; align-items: center; gap: 32px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--on-ink); flex-shrink: 0; }
.brand img { width: 38px; height: 38px; }
.brand span { font-weight: 800; font-size: 20px; letter-spacing: -0.02em; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; height: 100%; }
.nav-link {
  position: relative;
  display: inline-flex; align-items: center; gap: 6px;
  height: 100%;
  padding: 0 14px;
  font-size: 15px; font-weight: 500;
  color: var(--on-ink);
  text-decoration: none;
  background: none; border: 0; cursor: pointer;
}
.nav-link::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 18px;
  height: 2px; background: var(--signal);
  transform: scaleX(0); transform-origin: left; transition: transform .25s;
}
.nav-link:hover::after, .nav-link.is-current::after, .nav-drop:focus-within > .nav-link::after, .nav-drop.is-open > .nav-link::after { transform: scaleX(1); }
.nav-link .chev { width: 10px; height: 10px; transition: transform .2s; }
.nav-drop.is-open .chev { transform: rotate(180deg); }
.nav-drop { position: relative; height: 100%; }
.drop-panel {
  position: absolute;
  top: calc(100% - 1px);
  left: 50%;
  width: min(880px, 92vw);
  transform: translate(-50%, 6px);
  background: var(--ink-2);
  border: 1px solid var(--line-ink);
  border-radius: var(--r);
  padding: 8px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  opacity: 0; visibility: hidden;
  transition: opacity .2s, transform .2s, visibility .2s;
}
.nav-drop.is-open .drop-panel { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.drop-item {
  display: flex; flex-direction: column; gap: 8px;
  padding: 12px; border-radius: 3px;
  text-decoration: none; color: var(--on-ink);
  transition: background-color .2s;
}
.drop-item:hover, .drop-item[aria-current="page"] { background: var(--ink-3); }
/* Превью изделий: картинка любой пропорции вписывается в рамку и центрируется */
.drop-item .thumb, .mm-prod .thumb, .more-item .thumb { position: relative; overflow: hidden; }
.drop-item .thumb img, .mm-prod .thumb img, .more-item .thumb img {
  position: absolute; inset: var(--thumb-pad, 12px);
  width: calc(100% - 2 * var(--thumb-pad, 12px)); height: calc(100% - 2 * var(--thumb-pad, 12px));
  max-width: none; object-fit: contain; object-position: center; mix-blend-mode: multiply;
}
.drop-item .thumb { height: 116px; background: var(--paper); border-radius: 2px; }
.drop-item .nm { font-size: 14px; font-weight: 600; line-height: 1.25; }
.drop-all { grid-column: 1 / -1; display: block; padding: 12px; font-size: 14px; color: var(--on-ink-muted); text-decoration: none; border-top: 1px solid var(--line-ink); margin-top: 4px; }
.drop-all:hover { color: var(--on-ink); }
.header-mail { font-family: var(--f-accent); font-size: 14px; color: var(--on-ink-muted); text-decoration: none; }
.header-mail:hover { color: var(--on-ink); }
.header-cta { min-height: 42px; padding: 0 18px; font-size: 15px; }
.burger { display: none; margin-left: auto; width: 44px; height: 44px; border: 0; background: none; cursor: pointer; position: relative; }
.burger span { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--on-ink); transition: transform .25s, opacity .2s; }
.burger span:nth-child(1) { top: 15px; }
.burger span:nth-child(2) { top: 21px; }
.burger span:nth-child(3) { top: 27px; }
.menu-open .burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-open .burger span:nth-child(2) { opacity: 0; }
.menu-open .burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  z-index: 99;
  background: var(--ink);
  color: var(--on-ink);
  overflow-y: auto;
  padding: 16px var(--gutter) 40px;
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity .25s, transform .25s, visibility .25s;
}
.menu-open .mobile-menu { opacity: 1; visibility: visible; transform: none; }
.menu-open { overflow: hidden; }
.mm-prod { display: grid; grid-template-columns: 1fr 56px; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line-ink); text-decoration: none; }
.mm-prod .nm { font-size: 20px; font-weight: 600; }
.mm-prod[aria-current="page"] .nm { color: var(--signal); }
.mm-prod .thumb { --thumb-pad: 6px; width: 56px; height: 56px; background: var(--paper); border-radius: 2px; }
.mm-link { display: block; padding: 14px 0; font-size: 20px; font-weight: 600; text-decoration: none; border-bottom: 1px solid var(--line-ink); }
.mm-foot { margin-top: auto; padding-top: 32px; display: grid; gap: 14px; }
.mm-foot .btn { width: 100%; }

/* ---------- Главная: первый экран ---------- */
.hero {
  position: relative;
  min-height: min(100svh, 960px);
  padding-top: var(--header-h);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.hero-grid {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: 32px;
  padding-top: clamp(32px, 5vw, 64px);
  padding-bottom: clamp(32px, 4vw, 48px);
}
.hero-text { display: grid; gap: 28px; align-content: center; }
.hero h1 { max-width: 11.5em; font-size: clamp(2.4rem, 5.2vw, 4.7rem); }
.hero h1 em { font-style: normal; color: var(--pp); }
.hero .lead { max-width: 30em; }
.hero-stage { position: relative; display: grid; place-items: center; }
.hero-disc { position: relative; width: min(100%, 560px); aspect-ratio: 1; border-radius: 50%; background: var(--paper); }
.hero-slide {
  position: absolute; inset: 13%;
  display: block; border-radius: 50%;
  opacity: 0; transform: scale(.94);
  transition: opacity .45s ease, transform .6s cubic-bezier(.2,.7,.2,1);
  pointer-events: none;
}
.hero-slide.is-active { opacity: 1; transform: none; pointer-events: auto; }
.hero-slide img { width: 100%; height: 100%; max-width: none; object-fit: contain; mix-blend-mode: multiply; transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.hero-slide:hover img { transform: scale(1.04); }
.hero-slide:focus-visible { outline-offset: 10px; }

.hero-index { border-top: 1px solid var(--line-ink); }
.hero-index ol { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); }
.hero-index a {
  position: relative;
  display: block;
  padding: 20px 16px 24px 0;
  text-decoration: none; color: var(--on-ink-muted);
  font-weight: 600; font-size: 17px;
  transition: color .3s;
}
.hero-index a::after {
  content: ""; position: absolute; left: 0; right: 16px; top: -1px; height: 2px;
  background: var(--signal); transform: scaleX(0); transform-origin: left;
}
.hero-index a:hover, .hero-index a.is-active { color: var(--on-ink); }
.hero-index a.is-active::after { animation: hero-progress var(--hero-dur, 2000ms) linear forwards; }
.hero.is-paused .hero-index a.is-active::after { animation-play-state: paused; }
@keyframes hero-progress { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* ---------- Главная: история муфты (чертёж) ---------- */
.story-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.story-fig img { width: 100%; max-width: 560px; mix-blend-mode: multiply; margin-left: auto; }
.story-fig figcaption { margin-top: 16px; font-size: 14px; color: var(--on-paper-muted); max-width: 560px; margin-left: auto; }
.story-text { display: grid; gap: 24px; align-content: start; }
.story-steps { display: grid; gap: 0; border-top: 1px solid var(--line-paper); margin-top: 8px; }
.story-steps li { padding: 16px 0; border-bottom: 1px solid var(--line-paper); }

/* ---------- Каталог на главной: неравномерная сетка ---------- */
.cat-head { display: flex; justify-content: space-between; align-items: end; gap: 32px; margin-bottom: clamp(36px, 5vw, 64px); flex-wrap: wrap; }
.cat-head .h-1 { max-width: 12em; }
.cat-head p { max-width: 26em; }
.cat-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 16px; }
.tile {
  position: relative;
  display: grid;
  text-decoration: none;
  color: inherit;
  border-radius: var(--r);
  overflow: hidden;
  isolation: isolate;
}
.tile-media { position: relative; display: grid; place-items: center; }
.tile-media img { transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.tile:hover .tile-media img { transform: scale(1.035); }
.tile-body { display: grid; gap: 10px; align-content: end; }
.tile-go {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 15px; margin-top: 6px;
}
.tile-go { border-bottom: 1px solid currentColor; justify-self: start; padding-bottom: 2px; }
.tile:hover .tile-go { color: var(--signal-deep); }
.tile.on-ink { color: var(--on-ink); }
.tile.on-ink:hover .tile-go { color: var(--signal); }
.tile--mufta { grid-column: span 7; grid-template-columns: 1fr 1fr; min-height: 580px; background: var(--white); padding: clamp(24px, 3vw, 40px); gap: 16px; }
.tile--mufta .tile-media { order: 2; align-self: stretch; }
.tile--mufta .tile-media { --mh: 440px; }
.tile--mufta .tile-media img { mix-blend-mode: multiply; }
.tile--mufta .tile-body { align-content: end; }

.tile--klapan { grid-column: span 5; background: var(--white); padding: clamp(24px, 3vw, 40px); grid-template-rows: 1fr auto; gap: 24px; }
.tile--klapan .tile-media { padding: 24px 0; }
.tile--klapan .tile-media { --mh: 230px; }
.tile--troynik { grid-column: span 12; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); min-height: 520px; background: var(--white); }
.tile--troynik .tile-media img { mix-blend-mode: multiply; }
.tile--troynik .tile-media { padding: clamp(24px, 4vw, 56px); }
.tile--troynik .tile-media { --mh: 420px; }
.tile--troynik .tile-body { padding: clamp(28px, 4vw, 56px); border-left: 1px solid var(--line-paper); align-content: center; gap: 16px; }
.tile--troynik .big-num { font-family: var(--f-accent); font-size: clamp(3rem, 7vw, 6rem); line-height: 1; letter-spacing: -0.04em; color: var(--on-paper); font-weight: 400; }
.tile--troynik .big-num small { font-size: .35em; color: var(--on-paper-muted); letter-spacing: 0; margin-left: 8px; }

.tile--ekstsentrik { grid-column: span 5; background: var(--white); padding: clamp(24px, 3vw, 40px); grid-template-rows: 1fr auto; gap: 16px; }
.tile--ekstsentrik .tile-media { --mh: 300px; }
.tile--ekstsentrik .tile-media img { mix-blend-mode: multiply; }

.tile--vrezka { grid-column: span 7; background: var(--white); padding: clamp(24px, 3vw, 40px); grid-template-columns: 1fr 1fr; gap: 16px; min-height: 560px; }
.tile--vrezka .tile-body { align-content: space-between; }
.tile--vrezka .tile-media { --mh: 420px; }
.tile--vrezka .tile-media img { mix-blend-mode: multiply; }
.ratio-mark { font-family: var(--f-accent); font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1; letter-spacing: -0.04em; display: flex; align-items: baseline; gap: .25em; }
.ratio-mark i { font-style: normal; color: var(--pp); }

/* ---------- Материал ---------- */
.material-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.material-crop { position: relative; aspect-ratio: 5 / 4; overflow: hidden; border-radius: var(--r); background: var(--paper); }
.material-crop img { mix-blend-mode: multiply; }
.material-crop img { position: absolute; width: 150%; max-width: none; left: -25%; top: -62%; }
.material-list { display: grid; border-top: 1px solid var(--line-ink); }
.material-list > div { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line-ink); }
.material-list dt { font-family: var(--f-accent); font-size: 13px; color: var(--on-ink-muted); padding-top: 3px; }
.material-list dd b { display: block; font-size: 1.2rem; font-weight: 650; margin-bottom: 4px; color: var(--on-ink); }
.material-list dd { color: var(--on-ink-muted); }

/* ---------- Как купить + заявка ---------- */
.buy-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.channels { border-top: 1px solid var(--line-ink); margin-top: 32px; }
.channel {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 16px;
  padding: 22px 0; border-bottom: 1px solid var(--line-ink);
  text-decoration: none; color: var(--on-ink);
}
.channel .nm { font-size: clamp(1.35rem, 2.2vw, 1.8rem); font-weight: 700; letter-spacing: -0.02em; display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.channel .note { font-family: var(--f-accent); font-size: 12px; font-weight: 400; letter-spacing: .03em; color: var(--signal); }
.channel .desc { grid-column: 1; font-size: 15px; color: var(--on-ink-muted); margin-top: -8px; }
.channel .arr { grid-row: 1 / span 2; grid-column: 2; font-size: 22px; transition: transform .2s; }
.channel:hover .arr { transform: translateX(6px); }
.channel:hover .nm { color: var(--signal); }
.channels-paper { border-top-color: var(--line-paper); }
.channels-paper .channel { color: var(--on-paper); border-bottom-color: var(--line-paper); }
.channels-paper .channel .desc { color: var(--on-paper-muted); }
.channels-paper .channel .note { color: var(--signal-deep); }
.channels .channel--best {
  background: var(--signal); color: var(--on-signal);
  border-radius: var(--r); border-bottom: 0;
  padding: 26px 24px; margin: 16px 0 4px;
  row-gap: 14px;
  transition: background-color .2s;
}
.channels .channel--best:hover { background: #f06a2e; }
.channels .channel--best .note {
  grid-column: 1; justify-self: start;
  font-family: var(--f-sans); font-size: 13px; font-weight: 700; letter-spacing: 0;
  padding: 4px 10px; border-radius: 2px;
  background: var(--ink); color: var(--signal);
}
.channels .channel--best .nm, .channels .channel--best:hover .nm { color: var(--on-signal); }
.channels .channel--best .desc { color: rgba(18, 20, 22, .78); margin-top: -6px; }
.channels .channel--best .arr { grid-row: 1 / -1; align-self: center; }

/* ---------- Форма ---------- */
.form-card { background: var(--ink-2); border: 1px solid var(--line-ink); border-radius: var(--r); padding: clamp(24px, 3.5vw, 44px); color: var(--on-ink); }
.form-card h2, .form-card h3 { margin-bottom: 8px; }
.form-card > p { color: var(--on-ink-muted); margin: 8px 0 28px; font-size: 15px; }
.form-card .muted { color: var(--on-ink-muted); }
.field { display: grid; gap: 8px; margin-bottom: 18px; }
.field label, .field .lbl { font-size: 14px; font-weight: 500; color: var(--on-ink); }
.field .opt { color: var(--on-ink-muted); font-weight: 400; }
.field input, .field textarea {
  width: 100%;
  min-height: 50px;
  padding: 12px 14px;
  background: var(--ink);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--r);
  color: var(--on-ink);
  font-size: 16px;
  transition: border-color .2s, background-color .2s;
}
.field textarea { min-height: 96px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: #6c737a; }
.field input:hover, .field textarea:hover { border-color: rgba(255,255,255,.3); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--signal); background: #25292d; }
.field.has-error input { border-color: #ff7b61; }
.field .err { font-size: 13px; color: #ff9a85; display: none; }
.field.has-error .err { display: block; }
.seg { display: inline-grid; grid-template-columns: 1fr 1fr; border: 1px solid rgba(255,255,255,.16); border-radius: var(--r); padding: 3px; width: 100%; max-width: 280px; }
.seg { position: relative; }
.seg input, .field .seg input { position: absolute; opacity: 0; pointer-events: none; width: 1px; height: 1px; min-height: 0; padding: 0; border: 0; }
.seg label { text-align: center; padding: 8px 12px; border-radius: 2px; cursor: pointer; font-size: 14px; color: var(--on-ink-muted); transition: background-color .2s, color .2s; }
.seg input:checked + label { background: var(--ink-3); color: var(--on-ink); }
.seg input:focus-visible + label { outline: 2px solid var(--signal); outline-offset: 1px; }
.consent { display: grid; grid-template-columns: 22px 1fr; gap: 12px; align-items: start; margin: 8px 0 20px; font-size: 14px; color: var(--on-ink-muted); cursor: pointer; }
.consent input { width: 20px; height: 20px; margin-top: 1px; accent-color: var(--signal); cursor: pointer; }
.consent a { color: var(--on-ink); }
.consent.has-error { color: #ff9a85; }
.smart-captcha { margin-bottom: 20px; height: 100px; }
.form-submit { width: 100%; }
.form-submit[disabled] { opacity: .6; cursor: progress; }
.form-status { margin-top: 16px; font-size: 15px; min-height: 1.5em; }
.form-status.ok { color: #8fd6a1; }
.form-status.bad { color: #ff9a85; }
.form-done { display: none; padding: 8px 0; }
.form-done .h-3 { margin-bottom: 8px; }
.form-card.is-done form { display: none; }
.form-card.is-done .form-done { display: block; }

/* ---------- Подвал ---------- */
.site-footer { background: #24282c; color: var(--on-ink); padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 40px; }
.footer-brand p { color: var(--on-ink-muted); margin-top: 16px; max-width: 22em; font-size: 15px; }
.site-footer .f-h { font-family: var(--f-accent); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; font-weight: 400; color: var(--on-ink-muted); margin-bottom: 16px; }
.site-footer li + li { margin-top: 10px; }
.site-footer a { text-decoration: none; color: var(--on-ink); font-size: 15px; }
.site-footer a:hover { color: var(--signal); }
.copy-mail { background: none; border: 0; cursor: pointer; font-family: var(--f-accent); font-size: 13px; color: var(--on-ink-muted); padding: 0; margin-top: 6px; }
.copy-mail:hover { color: var(--on-ink); }
.footer-bottom { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line-ink); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--on-ink-muted); }

/* ---------- Внутренние страницы ---------- */
.page-top { padding-top: calc(var(--header-h) + clamp(32px, 5vw, 64px)); }
.page-intro { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 40px; align-items: end; padding-bottom: clamp(40px, 6vw, 80px); }
.page-intro .lead { justify-self: end; }

/* Каталог — последовательность изделий */
.cat-list { display: grid; }
.cat-item { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(32px, 6vw, 96px); align-items: center; padding: clamp(56px, 8vw, 110px) 0; border-top: 1px solid var(--line-paper); }
.cat-item:nth-child(even) .cat-media { order: 2; }
.cat-media { position: relative; border-radius: var(--r); display: grid; place-items: center; padding: clamp(24px, 4vw, 56px); min-height: 440px; }
.cat-media { --mh: 440px; }
.cat-media.bg-paper { background: var(--paper); }
.cat-media.bg-paper img, .cat-media.bg-white img { mix-blend-mode: multiply; }
.cat-media.bg-white { background: var(--white); }
.cat-media.bg-ink { background: var(--ink); }
.cat-info { display: grid; gap: 20px; align-content: center; }
.cat-item--band { grid-template-columns: 1fr; padding: 0; border-top: 0; }
.cat-band { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(32px, 6vw, 96px); align-items: center; padding: clamp(56px, 8vw, 110px) clamp(24px, 5vw, 72px); border-radius: var(--r); }
.cat-band .cat-media { min-height: 0; padding: 0; }

.spec-list { display: grid; border-top: 1px solid var(--line-paper); }
.spec-list > div { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line-paper); font-size: 15px; }
.spec-list dt { color: var(--on-paper-muted); }
.spec-list dd { font-weight: 550; }
.on-ink .spec-list, .on-ink .spec-list > div { border-color: var(--line-ink); }
.on-ink .spec-list dt { color: var(--on-ink-muted); }

/* Страница изделия */
.p-hero { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 80px); align-items: stretch; padding-bottom: clamp(56px, 8vw, 110px); }
.p-stage { position: relative; background: var(--paper); border-radius: var(--r); display: grid; place-items: center; padding: clamp(28px, 5vw, 72px); min-height: 560px; }
.p-stage.bg-white { background: var(--white); }
.p-stage.bg-ink { background: var(--ink); }
.p-stage { --mh: 480px; }
.p-stage:not(.bg-ink) img { mix-blend-mode: multiply; }
.p-info { display: grid; gap: 22px; align-content: start; padding-top: 8px; }
.p-buy { display: grid; gap: 12px; margin-top: 8px; padding-top: 24px; border-top: 1px solid var(--line-paper); }
.p-buy .btn-row .btn { flex: 1 1 auto; }

.p-block { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 6vw, 96px); }
.p-block + .p-block { margin-top: clamp(56px, 8vw, 110px); padding-top: clamp(40px, 5vw, 64px); border-top: 1px solid var(--line-paper); }
.on-ink .p-block + .p-block { border-top-color: var(--line-ink); }
.p-block-head { display: grid; gap: 12px; align-content: start; }
.p-block-body { display: grid; gap: 32px; min-width: 0; }
.p-block-body > * { min-width: 0; }
.bullets li { position: relative; padding: 14px 0 14px 32px; border-bottom: 1px solid var(--line-paper); }
.bullets li:first-child { border-top: 1px solid var(--line-paper); }
.bullets li::before { content: ""; position: absolute; left: 0; top: 26px; width: 16px; height: 1.5px; background: var(--signal); }
.on-ink .bullets li { border-color: var(--line-ink); }

.figure-plain { background: var(--white); border-radius: var(--r); padding: clamp(20px, 3vw, 40px); display: grid; place-items: center; }
.figure-plain img { mix-blend-mode: multiply; max-height: 560px; width: auto; }
.figure-plain.bg-paper { background: var(--paper); }
figure figcaption { margin-top: 12px; font-size: 14px; color: var(--on-paper-muted); }
.on-ink figure figcaption { color: var(--on-ink-muted); }

.parts { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-paper); }
.parts li { padding: 16px 16px 16px 0; display: flex; gap: 12px; align-items: baseline; border-bottom: 1px solid var(--line-paper); }
.parts .n { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: #1d3f8f; color: #fff; font-family: var(--f-accent); font-size: 12px; flex-shrink: 0; }

.video { position: relative; aspect-ratio: 16 / 9; background: #000; border-radius: var(--r); overflow: hidden; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: s; }
.steps li { border-top: 2px solid var(--on-paper); padding-top: 16px; display: grid; gap: 8px; align-content: start; }
.steps .n { font-family: var(--f-accent); font-size: 13px; color: var(--on-paper-muted); }
.steps b { font-weight: 650; font-size: 1.05rem; line-height: 1.3; }
.steps p { font-size: 15px; color: var(--on-paper-muted); }

.crop { position: relative; overflow: hidden; }
.crop img, .figure-plain .crop img { position: absolute; max-width: none; max-height: none; height: auto; }

.leaflet { overflow-x: auto; border-radius: var(--r); background: var(--white); -webkit-overflow-scrolling: touch; }
.leaflet img { min-width: 900px; width: 100%; }

.more-list { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-paper); }
.more-item { display: grid; grid-template-columns: 72px 1fr; gap: 16px; align-items: center; padding: 18px 16px 18px 0; text-decoration: none; border-bottom: 1px solid var(--line-paper); }
.more-item .thumb { --thumb-pad: 8px; width: 72px; height: 72px; background: var(--paper); border-radius: 2px; }
.more-item .nm { font-weight: 600; line-height: 1.25; }
.more-item:hover .nm { color: var(--signal-deep); }

.cta-band { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(40px, 6vw, 96px); align-items: start; }

/* Политика */
.policy { max-width: 760px; }
.policy h1 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); line-height: 1.1; letter-spacing: -0.025em; margin-bottom: 40px; }
.policy h2 { font-size: 1.25rem; margin: 40px 0 12px; letter-spacing: -0.01em; }
.policy p, .policy li { color: #33383d; font-size: 16px; }
.policy p + p { margin-top: .8em; }
.policy ul { list-style: disc; padding-left: 1.2em; margin: .8em 0; }

/* ---------- Уведомление cookie и тост ---------- */
.cookie {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 120;
  max-width: 720px; margin: 0 auto;
  background: var(--ink-2); color: var(--on-ink);
  border: 1px solid var(--line-ink); border-radius: var(--r);
  padding: 16px 18px;
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
  font-size: 14px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .35);
  animation: cookie-in .35s cubic-bezier(.2,.7,.2,1);
}
@keyframes cookie-in { from { opacity: 0; transform: translateY(16px); } }
.cookie[hidden] { display: none; }
.cookie p { flex: 1 1 320px; color: var(--on-ink-muted); line-height: 1.5; }
.cookie a { color: var(--on-ink); }
.cookie .btn { min-height: 44px; padding: 0 22px; font-size: 15px; }
/* Плашка висит, пока нет согласия: оставляем место внизу, чтобы она не закрывала подвал */
body.cookie-pending { padding-bottom: calc(var(--cookie-h, 120px) + 24px); }
body.cookie-pending .mobile-menu { padding-bottom: calc(var(--cookie-h, 120px) + 40px); }
body.cookie-pending .toast { bottom: calc(var(--cookie-h, 120px) + 32px); }
@media (max-width: 600px) {
  .cookie { left: 8px; right: 8px; bottom: 8px; padding: 14px; gap: 12px; font-size: 13px; }
  .cookie .btn { width: 100%; }
}
.toast {
  position: fixed; left: 50%; bottom: 24px; z-index: 130;
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--on-ink); color: var(--on-signal);
  padding: 10px 18px; border-radius: var(--r); font-size: 14px; font-weight: 500;
  transition: opacity .25s, transform .25s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Появление при прокрутке ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .hero-index a.is-active::after { animation: none; transform: scaleX(1); }
  * { transition-duration: 0s !important; }
}

/* ---------- Адаптив ---------- */
@media (max-width: 1180px) {
  .header-mail { display: none; }
  .tile--mufta, .tile--vrezka { grid-template-columns: 1fr; min-height: 0; }
  .tile--mufta .tile-media, .tile--vrezka .tile-media { order: -1; }
  .tile--mufta .tile-media, .tile--vrezka .tile-media { --mh: 340px; }
  .more-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 960px) {
  :root { --header-h: 64px; }
  .nav, .header-cta { display: none; }
  .burger { display: block; }
  .hero-grid { grid-template-columns: 1fr; padding-top: 24px; gap: 8px; }
  .hero-stage { padding: 24px 0 8px; }
  .hero-disc { width: min(100%, 440px); }
  .hero-index ol { display: flex; gap: 24px; overflow-x: auto; scrollbar-width: none; }
  .hero-index ol::-webkit-scrollbar { display: none; }
  .hero-index a { padding: 16px 0 20px; white-space: nowrap; font-size: 16px; }
  .hero-index a::after { right: 0; }
  .story-grid, .material-grid, .buy-grid, .page-intro, .p-hero, .p-block, .cta-band { grid-template-columns: 1fr; }
  .story-fig { order: 2; }
  .story-fig img, .story-fig figcaption { margin-left: 0; }
  .page-intro .lead { justify-self: start; }
  .cat-grid { grid-template-columns: 1fr; }
  .tile--mufta, .tile--klapan, .tile--troynik, .tile--ekstsentrik, .tile--vrezka { grid-column: auto; }
  .tile--troynik { grid-template-columns: 1fr; min-height: 0; }
  .tile--troynik .tile-body { border-left: 0; border-top: 1px solid var(--line-paper); }
  .cat-item, .cat-band { grid-template-columns: 1fr; }
  .cat-item:nth-child(even) .cat-media { order: 0; }
  .cat-media { min-height: 0; }
  .cat-media { --mh: 320px; }
  .p-stage { min-height: 0; }
  .p-stage { --mh: 340px; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .hero .btn-row .btn { flex: 1 1 100%; }
  .tile--mufta .tile-media, .tile--vrezka .tile-media, .tile--troynik .tile-media { --mh: 280px; }
  .material-list > div, .spec-list > div { grid-template-columns: 1fr; gap: 4px; }
  .parts { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .more-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .p-buy .btn-row .btn { flex: 1 1 100%; }
}