/* ТЕНЗОР — коммерческий сайт (СЖДК на главной, СДК.Ам — раздел).
   Дизайн-система B «Сигнал» (2026-09-30): графит + сигнальный жёлтый, Sofia Sans Extra Condensed + Sofia Sans.
   Прототип: design-variants/b-signal.html. Шрифты — свои (OFL), без Google Fonts.
   Контракты main.js: .nav-toggle, .site-nav.open, .faq-item/.faq-q/.faq-a(.open), .lead-form, .sticky-cta(.show) + .hero-actions и #form — не переименовывать. */

@font-face { font-family: "Sofia Sans"; font-style: normal; font-weight: 400 700; font-display: swap; src: url("../fonts/sofia-sans-cyrillic.woff2") format("woff2"); unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: "Sofia Sans"; font-style: normal; font-weight: 400 700; font-display: swap; src: url("../fonts/sofia-sans-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Sofia Sans"; font-style: normal; font-weight: 400 700; font-display: swap; src: url("../fonts/sofia-sans-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Sofia Sans Extra Condensed"; font-style: normal; font-weight: 700 900; font-display: swap; src: url("../fonts/sofia-sans-extra-condensed-cyrillic.woff2") format("woff2"); unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: "Sofia Sans Extra Condensed"; font-style: normal; font-weight: 700 900; font-display: swap; src: url("../fonts/sofia-sans-extra-condensed-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Sofia Sans Extra Condensed"; font-style: normal; font-weight: 700 900; font-display: swap; src: url("../fonts/sofia-sans-extra-condensed-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  --ink: #141413;
  --graphite: #1f1f1d;
  --steel: #34332f;
  --concrete: #e9e6dd;
  --paper: #f6f4ee;
  --white: #ffffff;
  --yellow: #ffc619;
  --yellow-soft: #fff1c2;
  --muted: #5b5953;
  --muted-dark: #a9a69c;
  --text-on-dark: #e8e5dc;
  --rule: #cfccc2;
  --display: "Sofia Sans Extra Condensed", "Arial Narrow", sans-serif;
  --body: "Sofia Sans", "Helvetica Neue", Arial, sans-serif;
  --container: 1280px;
  --gutter: 40px;
}

/* Base */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 17px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { margin: 0; font-family: var(--display); font-weight: 800; text-transform: uppercase; line-height: 0.98; letter-spacing: 0.005em; text-wrap: balance; }
p, li { text-wrap: pretty; }
h1 { font-size: clamp(44px, 5.4vw, 84px); }
h2 { font-size: clamp(38px, 4.2vw, 64px); }
h3 { font-size: clamp(24px, 2.2vw, 32px); line-height: 1.02; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 2px; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
section { padding: 104px 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.text-center { text-align: center; }
.nowrap { white-space: nowrap; }
.mt-0 { margin-top: 0; }

/* Labels */
.eyebrow, .label { display: block; font-family: var(--body); font-size: 13px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.eyebrow { color: var(--muted); margin-bottom: 18px; }
.sec-index { display: flex; align-items: center; gap: 14px; margin-bottom: 26px; }
.sec-index b { font-family: var(--display); font-size: 22px; font-weight: 900; background: var(--ink); color: var(--yellow); padding: 2px 10px; line-height: 1.2; }
.sec-index span { font-size: 13px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.section-how .sec-index b, .section-steps .sec-index b, .section-docs .sec-index b { background: var(--yellow); color: var(--ink); }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 440px); gap: 40px; align-items: end; margin-bottom: 52px; }
.section-head p { margin: 0; color: var(--muted); font-size: 17px; }
.section-head.left, .section-head.single { grid-template-columns: minmax(0, 1fr); }
.section-head.single p { max-width: 720px; margin-top: 18px; }
.lead { font-size: 19px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 52px; padding: 0 26px; font-family: var(--display); font-weight: 800; font-size: 21px; letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none; border: 2px solid var(--ink); background: transparent; color: var(--ink); cursor: pointer; white-space: nowrap; transition: background .15s, color .15s, border-color .15s; }
.btn svg { width: 20px; height: 20px; flex: none; }
.btn-primary, .btn-amber, .btn-yellow { background: var(--yellow); border-color: var(--yellow); color: var(--ink); }
.btn-primary:hover, .btn-amber:hover, .btn-yellow:hover { background: var(--white); border-color: var(--white); }
.on-light .btn-primary:hover, .btn-primary.on-light:hover { background: var(--ink); border-color: var(--ink); color: var(--yellow); }
.btn-ink { background: var(--ink); color: var(--yellow); }
.btn-ink:hover { background: var(--steel); border-color: var(--steel); }
.btn-ghost { color: var(--white); border-color: rgba(255, 255, 255, 0.55); }
.btn-ghost:hover { border-color: var(--yellow); color: var(--yellow); }
.btn-outline:hover { background: var(--ink); color: var(--yellow); }
.btn-block { width: 100%; }
.btn-caption { display: block; margin-top: 10px; font-size: 14px; color: var(--muted-dark); }

/* Utility bar + header */
.util-bar { background: var(--ink); color: var(--muted-dark); font-size: 13px; }
.util-bar .container { display: flex; justify-content: space-between; align-items: center; gap: 20px; min-height: 36px; }
.util-bar a { color: var(--text-on-dark); text-decoration: none; }
.util-bar a:hover { color: var(--yellow); }
.site-header { background: var(--graphite); color: var(--white); border-bottom: 1px solid var(--steel); position: sticky; top: 0; z-index: 40; }
.site-header .container { display: flex; align-items: center; gap: 32px; height: 76px; }
.site-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--white); flex: none; }
.site-logo img { display: block; height: 44px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 26px; margin-left: 8px; flex: 1; }
.site-nav a { color: #dcd9d0; text-decoration: none; font-weight: 600; font-size: 15px; white-space: nowrap; padding: 6px 0; border-bottom: 2px solid transparent; }
.site-nav a:hover { color: var(--yellow); }
.site-nav a.active { color: var(--white); border-bottom-color: var(--yellow); }
.site-nav .nav-cta { display: none; }
.header-right { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.header-phone { color: var(--white); text-decoration: none; font-family: var(--display); font-weight: 800; font-size: 24px; letter-spacing: 0.02em; white-space: nowrap; line-height: 1.05; }
.header-phone small { display: block; font-family: var(--body); font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-dark); }
.header-phone:hover { color: var(--yellow); }
.site-header .btn { min-height: 46px; font-size: 18px; padding: 0 20px; }
.nav-toggle { display: none; width: 44px; height: 44px; background: none; border: 2px solid rgba(255,255,255,.4); color: var(--white); cursor: pointer; align-items: center; justify-content: center; }
.nav-toggle svg { width: 22px; height: 22px; }

/* Hazard */
.hazard { height: 14px; background: repeating-linear-gradient(-45deg, var(--ink) 0 14px, var(--yellow) 14px 28px); }

/* Hero */
.hero { background: var(--graphite); color: var(--white); padding: 0; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); min-height: 640px; }
.hero-text { padding: 72px 56px 72px max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter))); display: flex; flex-direction: column; justify-content: center; }
.hero .kicker { display: flex; align-items: center; gap: 12px; color: var(--yellow); margin-bottom: 24px; font-size: 13px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.hero .kicker::before { content: ""; width: 28px; height: 3px; background: var(--yellow); flex: none; }
.hero h1 { font-size: clamp(44px, 4.7vw, 72px); margin-bottom: 28px; }
.hero h1 em { font-style: normal; color: var(--yellow); }
.hero .lead { color: #cfccc2; max-width: 560px; margin-bottom: 30px; }
.badge { display: inline-flex; align-items: center; gap: 10px; align-self: flex-start; border: 2px solid var(--yellow); color: var(--yellow); padding: 6px 12px; font-size: 14px; font-weight: 700; letter-spacing: 0.04em; line-height: 1.35; margin-bottom: 34px; }
.badge b { flex: none; background: var(--yellow); color: var(--ink); padding: 1px 6px; font-family: var(--display); font-size: 16px; letter-spacing: 0.04em; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-visual { position: relative; min-height: 420px; }
.hero-visual picture, .hero-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--graphite) 0%, rgba(31, 31, 29, 0) 24%); pointer-events: none; }
.hero-tag { position: absolute; left: 36px; bottom: 36px; z-index: 2; background: var(--yellow); color: var(--ink); padding: 14px 18px; max-width: 340px; }
.hero-tag strong { display: block; font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 4px; }
.hero-tag span { font-weight: 600; font-size: 15px; line-height: 1.35; display: block; }
.hero-visual.focus-left img { object-position: 0% 50%; }
.hero.hero-light .hero-visual { background: var(--white); }
.hero.hero-light .hero-visual picture, .hero.hero-light .hero-visual img { object-fit: contain; padding: 28px; }
.hero.hero-light .hero-visual::after { display: none; }
.hero.hero-light .hero-visual { border-left: 14px solid var(--yellow); }

/* Spec band (numbers) */
.spec-band { background: var(--yellow); color: var(--ink); }
.spec-band .container { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
.spec { padding: 32px 22px 28px; border-left: 2px solid var(--ink); }
.spec:first-child { border-left: 0; padding-left: 0; }
.spec strong { display: block; font-family: var(--display); font-weight: 900; font-size: 58px; line-height: 0.9; white-space: nowrap; }
.spec strong small { font-size: 0.5em; margin-left: 2px; }
.spec span { display: block; margin-top: 10px; font-size: 14px; font-weight: 600; line-height: 1.35; }
/* шесть цифр (автовесы): в ряд только на широком экране, ниже — общие правила 3 и 2 колонок */
@media (min-width: 1181px) {
  .spec-band-6 .container { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .spec-band-6 .spec { padding-left: 18px; padding-right: 18px; }
  .spec-band-6 .spec:first-child { padding-left: 0; }
  .spec-band-6 .spec strong { font-size: 52px; }
}

/* Trust strip (company-level facts) */
.trust-strip { background: var(--ink); color: var(--text-on-dark); border-top: 1px solid var(--steel); }
.trust-strip .container { display: flex; flex-wrap: wrap; gap: 10px 34px; align-items: center; min-height: 64px; padding-top: 14px; padding-bottom: 14px; }
.trust-strip p { margin: 0; font-size: 15px; font-weight: 600; }
.trust-strip .strip-badge { background: var(--yellow); color: var(--ink); font-family: var(--display); font-weight: 900; font-size: 16px; padding: 3px 8px; letter-spacing: 0.04em; }
.trust-strip .note { font-weight: 400; font-size: 13px; color: var(--muted-dark); width: 100%; }
.trust-item { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 600; }
.trust-item::before { content: ""; width: 10px; height: 10px; background: var(--yellow); flex: none; }

/* Grid + cards */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--white); border: 2px solid var(--ink); padding: 28px; }

/* Tasks / industries (tiles) */
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 2px solid var(--ink); border-left: 2px solid var(--ink); }
/* subgrid: номер, заголовок и текст плиток одного ряда стоят на общих линиях, даже если заголовок в две строки */
.tile { border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); background: var(--white); padding: 26px 26px 30px; display: grid; grid-row: span 3; grid-template-rows: subgrid; row-gap: 0; align-content: start; }
.tile .tile-num { font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 28px; }
.tile h3 { font-size: clamp(24px, 2.2vw, 28px); margin-bottom: 12px; }
.tile p { margin: 0; font-size: 15px; color: var(--muted); line-height: 1.45; }
a.tile { text-decoration: none; transition: background .15s; }
a.tile:hover { background: var(--yellow); }
a.tile:hover p, a.tile:hover .tile-num { color: var(--ink); }
.tile.tile-dark { background: var(--ink); color: var(--white); }
.tile.tile-dark h3 { color: var(--yellow); }
.tile.tile-dark p, .tile.tile-dark .tile-num { color: var(--muted-dark); }
a.tile.tile-dark:hover { background: var(--steel); }

/* Risks (product pages) */
.section-risks { background: var(--concrete); }
.risk-card { background: var(--white); border: 2px solid var(--ink); padding: 26px 26px 28px; position: relative; }
.risk-card .icon { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; background: var(--ink); color: var(--yellow); margin-bottom: 16px; }
.risk-card .icon svg { width: 20px; height: 20px; }
.risk-card h3 { font-size: clamp(24px, 2vw, 30px); margin-bottom: 10px; }
.risk-card p { margin: 0; font-size: 15px; color: var(--muted); }

/* Solution (features) */
.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.feature-row { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 20px; padding: 30px 32px 30px 0; border-bottom: 1px solid var(--rule); }
.feature-row:nth-child(even) { padding-left: 32px; padding-right: 0; border-left: 1px solid var(--rule); }
.feature-icon { width: 56px; height: 56px; background: var(--yellow); border: 2px solid var(--ink); display: flex; align-items: center; justify-content: center; font-family: var(--display); font-weight: 900; font-size: 24px; }
.feature-icon svg { width: 26px; height: 26px; }
.feature-row h3 { font-size: clamp(24px, 2vw, 30px); margin-bottom: 10px; }
.feature-row p { margin: 0; color: var(--muted); font-size: 16px; }

/* How it works */
.section-how { background: var(--ink); color: var(--white); }
.section-how .section-head p { color: #cfccc2; }
.section-how .sec-index b { background: var(--yellow); color: var(--ink); }
.how-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: stretch; }
.how-scheme { position: relative; margin: 0; border: 2px solid var(--yellow); background: var(--graphite); }
.how-scheme img { width: 100%; }
.scheme-media { position: relative; }
.how-scheme.bare { border: 0; background: transparent; }
.how-scheme.bare figcaption { padding: 10px 0 0; border-top: 0; }
.how-scheme.bare .scheme-media img { -webkit-mask-image: linear-gradient(to right, transparent 0, #000 7%, #000 93%, transparent 100%), linear-gradient(to bottom, transparent 0, #000 7%, #000 93%, transparent 100%); -webkit-mask-composite: source-in; mask-image: linear-gradient(to right, transparent 0, #000 7%, #000 93%, transparent 100%), linear-gradient(to bottom, transparent 0, #000 7%, #000 93%, transparent 100%); mask-composite: intersect; }
.scheme-media .pin { position: absolute; width: 30px; height: 30px; margin: -15px 0 0 -15px; background: var(--yellow); color: var(--ink); font-family: var(--display); font-weight: 900; font-size: 19px; line-height: 1; display: flex; align-items: center; justify-content: center; box-shadow: 0 0 0 3px var(--graphite); }
.how-scheme.light { background: var(--white); }
.how-scheme figcaption { font-size: 13px; color: var(--muted-dark); padding: 10px 14px; border-top: 1px solid var(--steel); }
.how-scheme.light figcaption { color: var(--muted); border-top-color: var(--rule); background: var(--white); }
.marker { position: absolute; width: 38px; height: 38px; margin: -19px 0 0 -19px; background: var(--yellow); color: var(--ink); border: 2px solid var(--ink); display: flex; align-items: center; justify-content: center; font-family: var(--display); font-weight: 900; font-size: 22px; box-shadow: 0 0 0 4px rgba(255, 198, 25, 0.35); }
.how-scheme { align-self: start; }
/* список растянут на высоту фото: пункты делят её поровну, текст — по центру между линиями */
.how-list { list-style: none; margin: 0; padding: 0; counter-reset: how; display: flex; flex-direction: column; }
.how-list li { flex: 1 1 auto; display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: 18px; align-content: center; padding: 20px 0; border-bottom: 1px solid var(--steel); }
.how-list li:first-child { padding-top: 0; }
.how-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.how-list li::before { counter-increment: how; content: counter(how); width: 38px; height: 38px; background: var(--yellow); color: var(--ink); display: flex; align-items: center; justify-content: center; font-family: var(--display); font-weight: 900; font-size: 22px; }
.how-list h3 { font-size: 26px; margin-bottom: 6px; color: var(--white); }
.how-list p { margin: 0; color: #cfccc2; font-size: 16px; }
.flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 64px; border: 2px solid var(--steel); }
.flow-step { padding: 22px 22px 24px; border-left: 2px solid var(--steel); position: relative; }
.flow-step:first-child { border-left: 0; }
.flow-step .label { color: var(--yellow); margin-bottom: 8px; }
.flow-step strong { display: block; font-family: var(--display); font-size: 28px; font-weight: 800; text-transform: uppercase; line-height: 1; margin-bottom: 8px; }
.flow-step p { margin: 0; font-size: 15px; color: #cfccc2; }

/* Record (weighing protocol) */
.section-record { background: var(--paper); }
.record-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 32px; align-items: start; }
.terminal { margin: 0; background: var(--white); border: 2px solid var(--ink); }
.terminal img { width: 100%; }
.terminal figcaption { padding: 12px 16px; font-size: 14px; color: var(--muted); border-top: 2px solid var(--ink); }
.record { background: var(--white); border: 2px solid var(--ink); box-shadow: 10px 10px 0 var(--ink); }
.record-head { background: var(--ink); color: var(--white); padding: 18px 20px; display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; }
.record-head .label { color: var(--yellow); font-size: 11px; margin-bottom: 4px; }
.record-head strong { font-family: var(--display); font-size: 30px; font-weight: 800; text-transform: uppercase; line-height: 1; }
.record-mass { font-family: var(--display); font-weight: 900; font-size: 48px; line-height: 0.9; color: var(--yellow); white-space: nowrap; }
.record-mass small { font-size: 22px; margin-left: 4px; }
.record table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.record th, .record td { padding: 10px 12px; text-align: right; border-bottom: 1px solid var(--rule); font-size: 15px; }
.record th:first-child { padding-left: 20px; text-align: left; }
.record th:last-child, .record td:last-child { padding-right: 20px; }
.record thead th { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); background: var(--paper); }
.record tbody th { font-weight: 600; }
.record tr.sum td, .record tr.sum th { font-weight: 700; background: var(--yellow-soft); }
.record-meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.record-meta div { padding: 14px 20px; border-left: 1px solid var(--rule); }
.record-meta div:first-child { border-left: 0; }
.record-meta .label { font-size: 11px; color: var(--muted); margin-bottom: 4px; }
.record-meta b { font-family: var(--display); font-size: 22px; font-weight: 800; }
.record-note { padding: 12px 20px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--rule); margin: 0; }
.record-points { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 10px; }
.record-points li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; }
.record-points li::before { content: ""; width: 12px; height: 12px; background: var(--ink); margin-top: 7px; flex: none; }
.sample-flag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; background: var(--yellow); color: var(--ink); padding: 4px 8px; }

/* Accuracy table */
.accuracy-wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 420px); gap: 56px; align-items: start; }
.accuracy-table { width: 100%; border-collapse: collapse; background: var(--white); border: 2px solid var(--ink); font-variant-numeric: tabular-nums; }
.accuracy-table th, .accuracy-table td { width: 35%; padding: 18px 24px; border-bottom: 1px solid var(--rule); text-align: left; }
.accuracy-table th:first-child { width: 30%; }
.accuracy-table thead th { background: var(--ink); color: var(--white); font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.accuracy-table tbody th { font-family: var(--display); font-size: 28px; font-weight: 800; }
.accuracy-table td { font-family: var(--display); font-size: 34px; font-weight: 800; }
.accuracy-table tr.best th, .accuracy-table tr.best td { background: var(--yellow); }
.accuracy-table tbody tr:last-child > * { border-bottom: 0; }
.accuracy-note { font-size: 16px; color: var(--muted); }
.accuracy-note p:first-child { margin-top: -4px; }
.accuracy-note .link-arrow { color: var(--ink); }

/* Steps (installation) */
.section-steps { background: var(--graphite); color: var(--white); }
.section-steps h2 { color: var(--white); }
.section-steps .section-head p { color: #cfccc2; }
.steps-photo { margin: 0 0 40px; border: 2px solid var(--yellow); position: relative; }
.steps-photo img { width: 100%; max-height: 360px; object-fit: cover; }
.step-card { background: rgba(255, 255, 255, 0.05); border: 2px solid var(--steel); padding: 28px 26px; }
.step-num { font-family: var(--display); font-size: 56px; font-weight: 900; color: var(--yellow); line-height: 0.9; margin-bottom: 10px; }
.step-dates { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; background: var(--yellow); color: var(--ink); padding: 3px 8px; margin-bottom: 14px; }
.step-card h3 { color: var(--white); margin-bottom: 10px; }
.step-card p { color: #cfccc2; margin: 0; font-size: 16px; }

/* Cases */
.section-cases { background: var(--concrete); }
.case-card { background: var(--white); border: 2px solid var(--ink); padding: 30px; }
.case-card .tag { display: block; font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.case-card .kpi { font-family: var(--display); font-size: 72px; font-weight: 900; line-height: 0.9; margin-bottom: 10px; }
.case-card p { margin: 0; font-size: 15px; }
.case-card .flag, .flag { display: inline-block; margin-top: 16px; font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; background: var(--yellow); padding: 4px 8px; }

/* Price */
.section-pricing { background: var(--paper); }
.price-card { background: var(--white); border: 2px solid var(--ink); padding: 40px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: center; }
.price-card .label { color: var(--muted); margin-bottom: 8px; }
.price-figure { font-family: var(--display); font-size: clamp(52px, 5vw, 76px); font-weight: 900; line-height: 0.9; margin: 0 0 14px; }
.price-note { margin: 0; color: var(--muted); max-width: 620px; }

/* Documents / legal significance */
.section-docs { background: var(--ink); color: var(--white); }
.docs-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 64px; align-items: start; }
.section-docs h2 em { font-style: normal; background: var(--yellow); color: var(--ink); padding: 0 8px; }
.section-docs .docs-text p { color: #cfccc2; font-size: 18px; max-width: 580px; }
.doc-plates { display: grid; gap: 18px; }
.doc-plate { background: var(--paper); color: var(--ink); padding: 26px 28px; border-top: 6px solid var(--yellow); }
.doc-plate .label { color: var(--muted); font-size: 11px; margin-bottom: 8px; }
.doc-plate strong { display: block; font-family: var(--display); font-size: 42px; font-weight: 900; line-height: 1; }
.doc-plate p { margin: 8px 0 0; font-size: 15px; color: var(--muted); }
.doc-plate a { color: var(--ink); font-weight: 700; }
/* светлая плашка на светлом фоне (о компании): ссылка прижата к низу, чтобы в соседних плашках стояла на одной линии */
.doc-plate-light { background: var(--white); border: 2px solid var(--ink); border-top: 6px solid var(--yellow); display: flex; flex-direction: column; }
.doc-plate-light .plate-link { margin-top: auto; padding-top: 16px; }
.history { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--steel); font-size: 15px; color: var(--muted-dark); }
.history .label { color: var(--muted-dark); margin-bottom: 8px; font-size: 11px; }
.section-docs .history p { margin: 0 0 6px; font-size: 15px; color: var(--muted-dark); }

/* About */
.about-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; align-items: start; }
.about-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.about-facts div { padding: 20px 20px 20px 0; border-bottom: 1px solid var(--rule); }
.about-facts b { display: block; font-family: var(--display); font-size: 26px; font-weight: 800; text-transform: uppercase; line-height: 1.05; margin-bottom: 6px; }
.about-facts span { display: block; font-size: 14px; line-height: 1.45; color: var(--muted); }
.link-arrow { display: inline-flex; align-items: center; gap: 10px; font-family: var(--display); font-size: 22px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.04em; text-decoration: none; border-bottom: 3px solid var(--yellow); padding-bottom: 2px; }
.link-arrow svg { width: 20px; height: 20px; }

/* Product cards (cross-links) */
.product-card { display: flex; flex-direction: column; align-items: flex-start; background: var(--white); border: 2px solid var(--ink); padding: 32px; text-decoration: none; transition: transform .15s, box-shadow .15s; }
.product-card:hover { transform: translate(-4px, -4px); box-shadow: 8px 8px 0 var(--ink); }
.product-card h3 { margin-bottom: 10px; }
.product-card p { color: var(--muted); margin-bottom: 18px; }
.product-card .arrow { margin-top: auto; font-family: var(--display); font-size: 20px; font-weight: 800; text-transform: uppercase; border-bottom: 3px solid var(--yellow); }
.cross-link { background: var(--concrete); padding: 0; }
.cross-link .container { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: center; padding-top: 48px; padding-bottom: 48px; }
.cross-link h2 { font-size: clamp(30px, 3vw, 44px); }
.cross-link p { margin: 12px 0 0; color: var(--muted); }

/* FAQ (main.js: .faq-item.open) */
.section-faq .container { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); grid-template-rows: auto 1fr; column-gap: 64px; align-items: start; }
.section-faq .sec-index, .section-faq .section-head { grid-column: 1; }
.section-faq .section-head { margin-bottom: 0; }
.section-faq .faq { grid-column: 2; grid-row: 1 / span 2; }
.faq { border-top: 2px solid var(--ink); }
.faq-item { border-bottom: 1px solid var(--rule); }
.faq-q { width: 100%; background: none; border: 0; padding: 22px 0; display: flex; justify-content: space-between; align-items: center; gap: 24px; text-align: left; font-family: var(--body); font-size: 19px; font-weight: 700; color: var(--ink); cursor: pointer; }
.faq-q::after { content: "+"; flex: none; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; background: var(--yellow); font-family: var(--body); font-size: 26px; font-weight: 700; line-height: 1; }
.faq-item.open .faq-q::after { content: "\2212"; background: var(--ink); color: var(--yellow); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .2s ease; }
.faq-item.open .faq-a { max-height: 480px; }
.faq-a p { margin: 0; padding: 0 60px 24px 0; color: var(--muted); font-size: 17px; }

/* CTA + form / questionnaire (main.js: .lead-form) */
.section-cta { background: var(--yellow); border-top: 2px solid var(--ink); }
.cta-layout { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 56px; align-items: start; }
.section-cta .cta-layout > div:first-child { position: sticky; top: 100px; }
.section-cta h2 { margin-bottom: 22px; }
.section-cta .eyebrow { color: var(--ink); }
.cta-layout > div > p { font-size: 19px; max-width: 520px; }
.trust-signals { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 10px; }
.trust-signals li { display: flex; align-items: center; gap: 12px; font-weight: 600; }
.trust-signals li::before { content: ""; width: 14px; height: 14px; background: var(--ink); flex: none; }
.cta-contacts { margin-top: 30px; padding-top: 20px; border-top: 2px solid var(--ink); display: grid; gap: 4px; }
.cta-contacts a { font-family: var(--display); font-size: 30px; font-weight: 800; text-decoration: none; }
.cta-contacts span { font-size: 14px; }
.lead-form { background: var(--white); border: 2px solid var(--ink); padding: 34px; box-shadow: 10px 10px 0 var(--ink); }
.lead-form h3 { margin-bottom: 8px; }
.form-intro { color: var(--muted); font-size: 15px; margin-bottom: 20px; }
.lead-form fieldset { border: 0; margin: 0 0 22px; padding: 0 0 22px; border-bottom: 1px solid var(--rule); }
.lead-form fieldset:last-of-type { border-bottom: 0; padding-bottom: 0; }
.lead-form legend { font-family: var(--display); font-size: 22px; font-weight: 800; text-transform: uppercase; padding: 0; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.lead-form legend b { background: var(--ink); color: var(--yellow); font-size: 16px; padding: 1px 7px; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; margin-bottom: 14px; }
.field { margin-bottom: 14px; }
.field-row .field, .field:last-child, .field-row:last-child { margin-bottom: 0; }
.lead-form label, .field-label { display: block; font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 6px; }
.lead-form input[type="text"], .lead-form input[type="tel"], .lead-form input[type="email"], .lead-form select, .lead-form textarea { width: 100%; min-height: 50px; border: 2px solid var(--ink); background: var(--paper); padding: 11px 14px; font: inherit; font-size: 16px; color: var(--ink); border-radius: 0; }
.lead-form textarea { min-height: 96px; resize: vertical; }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus { outline: 3px solid var(--yellow); outline-offset: 0; background: var(--white); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.chip span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border: 2px solid var(--ink); background: var(--paper); font-size: 15px; font-weight: 600; text-transform: none; letter-spacing: 0; cursor: pointer; }
.chip input:checked + span { background: var(--ink); color: var(--yellow); }
.chip input:focus-visible + span { outline: 3px solid var(--yellow); outline-offset: 2px; }
.lead-form .chip { margin: 0; text-transform: none; letter-spacing: 0; font-size: 15px; }
.checks { display: grid; gap: 10px; }
/* .check — блок с отступом под чекбокс, а не flex: иначе ссылка внутри подписи («политикой») становится отдельной колонкой */
.check { display: block; position: relative; padding-left: 30px; font-size: 15px; font-weight: 500; text-transform: none; letter-spacing: 0; line-height: 1.4; margin: 0; cursor: pointer; }
.lead-form .check { display: block; margin: 0; font-size: 15px; font-weight: 500; text-transform: none; letter-spacing: 0; line-height: 1.4; }
.lead-form .consent { margin: 20px 0 16px; }
.check input { position: absolute; left: 0; top: 0; width: 20px; height: 20px; margin: 0; accent-color: var(--ink); }
.req { color: #9a3b00; }
.consent { margin: 20px 0 16px; }
.consent a { color: var(--ink); }
.form-response-note { font-size: 13px; color: var(--muted); margin: 12px 0 0; }
/* Отправка заявки (main.js): ошибка под кнопкой, после успеха форма сменяется сообщением */
.lead-form.is-sending button[type="submit"] { opacity: .7; cursor: progress; }
.form-status { margin: 12px 0 0; padding: 10px 14px; background: #fbe6dc; border-left: 4px solid #9a3b00; font-size: 15px; line-height: 1.45; }
.form-success { outline: none; }
.form-success::before { content: ""; display: block; width: 48px; height: 6px; background: var(--yellow); margin-bottom: 20px; }
.form-success h3 { margin-bottom: 12px; }
.form-success p { margin: 0; font-size: 17px; }
.form-response-note a { color: var(--ink); }

/* Sticky CTA (main.js: .sticky-cta.show) — нижняя панель «Рассчитать стоимость» на продуктовых страницах, только ≤980px */
.sticky-cta { display: none; }

/* Simple pages */
.page-simple { padding: 72px 0 96px; }
.page-simple h1 { font-size: clamp(40px, 4.6vw, 68px); margin-bottom: 28px; }
.page-simple h2 { font-size: clamp(28px, 2.6vw, 38px); margin: 48px 0 16px; }
.page-simple p, .page-simple li, .page-simple > .container > h1, .page-simple > .container > h2 { max-width: 780px; }
.page-simple .lead { color: var(--muted); }
/* одна колонка текста: карточки и списки заканчиваются на том же правом крае, что и абзацы */
.page-simple .grid { max-width: 780px; margin-top: 24px; }
.page-simple .lead + p + .grid { margin-top: 40px; }
.page-simple .grid + p { margin-top: 40px; }
.page-simple .cta-layout > .lead-form { position: sticky; top: 100px; }
.contact-list { list-style: none; padding: 0; margin: 0; border-top: 2px solid var(--ink); max-width: 780px; }
.contact-list li { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--rule); font-size: 17px; }
.contact-list a { font-family: var(--display); font-size: 26px; font-weight: 800; text-decoration: none; }
.contact-list a:hover { background: var(--yellow); }
.contact-list span { color: var(--muted); }
.contact-list li > span:last-child:not(:first-child) { flex: none; white-space: nowrap; text-align: right; }

/* Articles (шаблон — templates/article.html, индексы — templates/articles-index.html) */
.article-head { background: var(--paper); padding: 48px 0 40px; border-bottom: 2px solid var(--ink); }
.crumbs { display: flex; flex-wrap: wrap; gap: 6px 10px; font-size: 14px; color: var(--muted); margin-bottom: 28px; }
.crumbs a { color: var(--muted); text-decoration: none; border-bottom: 1px solid var(--rule); }
.crumbs a:hover { color: var(--ink); border-bottom-color: var(--yellow); }
.crumbs span[aria-hidden] { color: var(--rule); }
.article-head h1 { font-size: clamp(36px, 4vw, 60px); max-width: 980px; margin-bottom: 22px; }
.article-lead { font-size: 20px; line-height: 1.55; max-width: 820px; margin: 0 0 22px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 14px; color: var(--muted); }
.article-meta > * + *::before { content: "·"; margin-right: 18px; color: var(--rule); }
.article-layout { display: grid; grid-template-columns: minmax(0, 760px) minmax(0, 300px); justify-content: space-between; gap: 64px; padding-top: 48px; padding-bottom: 96px; }
.prose { font-size: 18px; line-height: 1.65; min-width: 0; }
.prose > * { margin-top: 0; }
.prose p, .prose ul, .prose ol { margin: 0 0 1.1em; }
.prose h2 { font-size: clamp(28px, 2.6vw, 38px); margin: 56px 0 18px; scroll-margin-top: 100px; }
.prose h3 { font-size: clamp(22px, 1.9vw, 26px); margin: 36px 0 12px; scroll-margin-top: 100px; }
.prose a:not(.btn) { color: var(--ink); text-decoration-thickness: 2px; text-underline-offset: 3px; text-decoration-color: var(--yellow); }
.prose a:not(.btn):hover { background: var(--yellow-soft); }
.prose ul { list-style: none; padding: 0; }
.prose ul > li { position: relative; padding-left: 26px; margin-bottom: .45em; }
.prose ul > li::before { content: ""; position: absolute; left: 0; top: .62em; width: 10px; height: 10px; background: var(--ink); }
.prose ol { padding-left: 1.4em; }
.prose ol > li { margin-bottom: .45em; padding-left: .2em; }
.prose strong { font-weight: 700; }
.key-points { background: var(--white); border: 2px solid var(--ink); border-left-width: 8px; border-left-color: var(--yellow); padding: 22px 26px 8px; margin-bottom: 40px !important; }
.key-points > .label { margin-bottom: 12px; }
.prose figure { margin: 32px 0; }
.prose figure img { width: 100%; max-height: 520px; object-fit: cover; border: 2px solid var(--ink); background: var(--white); }
.prose figcaption { font-size: 14px; color: var(--muted); margin-top: 10px; line-height: 1.45; }
.table-scroll { overflow-x: auto; margin: 28px 0; -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; background: var(--white); border: 2px solid var(--ink); font-size: 16px; line-height: 1.4; font-variant-numeric: tabular-nums; }
.data-table caption { caption-side: bottom; text-align: left; font-size: 14px; color: var(--muted); padding-top: 10px; }
.data-table th, .data-table td { padding: 12px 16px; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
.data-table thead th { background: var(--ink); color: var(--white); font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.data-table tbody tr:last-child > * { border-bottom: 0; }
.note { background: var(--concrete); padding: 18px 22px; margin: 28px 0; font-size: 16px; line-height: 1.55; }
.note > :last-child { margin-bottom: 0; }
.article-cta { background: var(--graphite); color: var(--white); padding: 32px; margin: 56px 0 0; border-top: 6px solid var(--yellow); }
.article-cta h2 { color: var(--white); margin: 0 0 12px !important; font-size: clamp(26px, 2.4vw, 34px); }
.article-cta p { color: #cfccc2; margin: 0 0 22px; }
.article-cta .btn + .btn { margin-left: 10px; }
.related { margin-top: 56px; }
.related h2 { margin-top: 0 !important; }
.related-list { list-style: none !important; padding: 0; margin: 0; border-top: 2px solid var(--ink); }
.related-list > li { padding: 0 !important; margin: 0 !important; border-bottom: 1px solid var(--rule); }
.related-list > li::before { display: none; }
.related-list a { display: block; padding: 16px 0; font-weight: 700; text-decoration: none; }
.related-list a:hover { background: none; color: var(--ink); text-decoration: underline; text-decoration-color: var(--yellow); }
.related-list small { display: block; font-weight: 400; color: var(--muted); font-size: 15px; margin-top: 2px; }
.sources { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--rule); font-size: 15px; line-height: 1.5; color: var(--muted); }
.sources h2 { font-size: 24px !important; margin: 0 0 14px !important; color: var(--ink); }
.sources ol { padding-left: 1.4em; margin: 0; }
.sources li { margin-bottom: 8px; overflow-wrap: anywhere; }
.sources a:not(.btn) { color: var(--muted); }
.article-aside { position: sticky; top: 100px; align-self: start; display: grid; gap: 24px; }
.toc { border-top: 2px solid var(--ink); padding-top: 14px; }
.toc .label { color: var(--muted); margin-bottom: 10px; }
.toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; }
.toc li { counter-increment: toc; display: grid; grid-template-columns: 26px minmax(0, 1fr); font-size: 15px; line-height: 1.4; padding: 7px 0; border-bottom: 1px solid var(--rule); }
.toc li::before { content: counter(toc, decimal-leading-zero); font-family: var(--display); font-weight: 800; color: var(--muted); }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; text-decoration-color: var(--yellow); text-decoration-thickness: 2px; }
.aside-cta { background: var(--yellow); padding: 22px; border: 2px solid var(--ink); }
.aside-cta strong { display: block; font-family: var(--display); font-size: 26px; font-weight: 900; text-transform: uppercase; line-height: 1; margin-bottom: 8px; }
.aside-cta p { font-size: 15px; line-height: 1.45; margin: 0 0 16px; }
.aside-cta .btn { min-height: 46px; font-size: 18px; }
.aside-cta .aside-phone { display: block; margin-top: 12px; font-family: var(--display); font-weight: 800; font-size: 22px; text-decoration: none; text-align: center; }

/* Индексы статей: /statii/ и /statii/<кластер>/ */
.articles-group { margin-top: 56px; }
.articles-group > h2 { font-size: clamp(30px, 3vw, 44px); margin-bottom: 8px; }
.articles-group > p { color: var(--muted); max-width: 780px; margin-bottom: 20px; }
.cluster-block { margin-top: 32px; }
.cluster-block h3 { font-size: clamp(22px, 2vw, 28px); margin-bottom: 4px; }
.cluster-block h3 a { text-decoration: none; }
.cluster-block h3 a:hover { text-decoration: underline; text-decoration-color: var(--yellow); text-decoration-thickness: 3px; }
.teasers { list-style: none; padding: 0; margin: 14px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.teasers.teasers-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 0; }
.section-articles { background: var(--paper); }
.teaser { display: flex; flex-direction: column; background: var(--white); border: 2px solid var(--ink); padding: 24px 26px; text-decoration: none; height: 100%; transition: transform .15s, box-shadow .15s; }
.teaser:hover { transform: translate(-3px, -3px); box-shadow: 6px 6px 0 var(--ink); }
.teaser .label { color: var(--muted); font-size: 11px; margin-bottom: 10px; }
.teaser h3, .teaser strong.teaser-title { font-family: var(--display); font-size: clamp(22px, 1.9vw, 26px); font-weight: 800; text-transform: uppercase; line-height: 1.05; margin: 0 0 10px; display: block; }
.teaser p { font-size: 15px; color: var(--muted); line-height: 1.5; margin: 0 0 16px; }
.teaser .arrow { margin-top: auto; font-family: var(--display); font-size: 18px; font-weight: 800; text-transform: uppercase; align-self: flex-start; border-bottom: 3px solid var(--yellow); }

/* Redirect stub */
.stub { min-height: 60vh; display: flex; align-items: center; }

/* Footer */
.site-footer { background: var(--ink); color: var(--muted-dark); font-size: 14px; }
.site-footer a { color: #d7d4ca; text-decoration: none; }
.site-footer a:hover { color: var(--yellow); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 40px; padding: 64px 0 48px; }
.footer-grid h4 { font-family: var(--display); color: var(--white); font-size: 20px; font-weight: 800; letter-spacing: 0.06em; margin: 0 0 16px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-grid p { margin: 18px 0 0; max-width: 340px; }
.footer-bottom { border-top: 1px solid var(--steel); padding: 22px 0 28px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; }

/* Responsive */
@media (max-width: 1180px) {
  .header-phone { display: none; }
  .spec-band .container { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .spec:nth-child(4) { border-left: 0; padding-left: 0; }
  .spec:nth-child(n+4) { border-top: 2px solid var(--ink); }
  .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-step:nth-child(3) { border-left: 0; }
  .flow-step:nth-child(n+3) { border-top: 2px solid var(--steel); }
}
@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .header-right { display: none; }
  .site-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; height: calc(100vh - 100%); height: calc(100dvh - 76px); flex-direction: column; align-items: stretch; gap: 0; margin: 0; padding: 12px var(--gutter) 32px; background: var(--graphite); border-top: 1px solid var(--steel); overflow-y: auto; }
  .site-nav.open { display: flex; }
  .site-nav a { font-size: 20px; padding: 16px 0; border-bottom: 1px solid var(--steel); }
  .site-nav a.active { border-bottom-color: var(--yellow); }
  .site-nav .nav-cta, .site-nav a.nav-cta:hover { display: flex; margin-top: 20px; border-bottom: 2px solid var(--yellow); font-size: 20px; color: var(--ink); }
  .hero-grid, .how-grid, .record-grid, .accuracy-wrap, .docs-grid, .about-grid, .cta-layout, .section-head, .cross-link .container, .price-card { grid-template-columns: minmax(0, 1fr); }
  .hero-text { padding: 56px var(--gutter) 44px; }
  .hero-visual { min-height: 320px; }
  .hero-visual::after { background: linear-gradient(180deg, var(--graphite) 0%, rgba(31, 31, 29, 0) 30%); }
  .features { grid-template-columns: minmax(0, 1fr); }
  .feature-row, .feature-row:nth-child(even) { padding: 24px 0; border-left: 0; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section-head { gap: 16px; }
  .section-faq .container { display: block; }
  .section-faq .section-head { margin-bottom: 32px; }
  .section-cta .cta-layout > div:first-child, .page-simple .cta-layout > .lead-form { position: static; }
  .article-layout { grid-template-columns: minmax(0, 1fr); gap: 0; padding-top: 32px; padding-bottom: 72px; }
  .article-aside { display: none; }
  .teasers, .teasers.teasers-3 { grid-template-columns: minmax(0, 1fr); }
  .sticky-cta { display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; padding: 10px var(--gutter) calc(10px + env(safe-area-inset-bottom, 0px)); background: var(--graphite); border-top: 1px solid var(--steel); transform: translateY(100%); visibility: hidden; transition: transform .2s ease, visibility 0s linear .2s; }
  .sticky-cta.show { transform: none; visibility: visible; transition: transform .2s ease; }
  .sticky-cta .btn { width: 100%; }
  .sticky-cta + .site-footer { padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px)); }
}
@media (prefers-reduced-motion: reduce) {
  .sticky-cta, .sticky-cta.show { transition: none; }
}
@media (max-width: 680px) {
  :root { --gutter: 16px; }
  body { font-size: 16px; }
  section { padding: 64px 0; }
  .section-head, .section-faq .section-head { margin-bottom: 32px; }
  .util-bar { display: none; }
  .site-header .container { height: 64px; gap: 12px; }
  .site-nav { height: calc(100dvh - 64px); }
  .contact-list li { flex-wrap: wrap; gap: 2px 12px; }
  .contact-list li > span:last-child:not(:first-child) { white-space: normal; text-align: left; }
  .site-logo img { height: 38px; }
  .hero-actions .btn { width: 100%; }
  .hero-tag { left: 16px; right: 16px; bottom: 16px; max-width: none; }
  .scheme-media .pin { width: 26px; height: 26px; margin: -13px 0 0 -13px; font-size: 16px; }
  .spec-band .container { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .spec, .spec:first-child, .spec:nth-child(4) { border-left: 0; padding: 20px 12px 20px 0; border-top: 2px solid var(--ink); }
  .spec:first-child, .spec:nth-child(2) { border-top: 0; }
  .spec:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .spec strong { font-size: 44px; }
  .tile { padding: 22px 22px 24px; }
  .article-head { padding: 32px 0 28px; }
  .crumbs { margin-bottom: 18px; font-size: 13px; }
  .article-lead { font-size: 18px; }
  .article-meta { gap: 2px 14px; }
  .article-meta > * + *::before { display: none; }
  .prose { font-size: 17px; }
  .prose h2 { margin-top: 44px; }
  .key-points { padding: 18px 18px 4px; }
  .article-cta { padding: 24px 20px; margin-left: calc(-1 * var(--gutter)); margin-right: calc(-1 * var(--gutter)); }
  .article-cta .btn { width: 100%; }
  .article-cta .btn + .btn { margin: 10px 0 0; }
  .prose figure img { max-height: 360px; }
  .data-table { font-size: 14px; }
  .data-table th, .data-table td { padding: 10px 10px; }
  .teaser { padding: 20px; }
  .tile .tile-num { margin-bottom: 14px; }
  .accuracy-wrap { gap: 28px; }
  .tiles, .grid-2, .grid-3, .grid-4, .field-row, .about-facts, .record-meta { grid-template-columns: minmax(0, 1fr); }
  .flow { grid-template-columns: minmax(0, 1fr); }
  .flow-step, .flow-step:nth-child(3) { border-left: 0; }
  .flow-step:nth-child(n+2) { border-top: 2px solid var(--steel); }
  .record-meta div { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 10px 20px; border-left: 0; border-top: 1px solid var(--rule); }
  .record-meta div:first-child { border-top: 0; }
  .record-meta .label { margin-bottom: 0; }
  .risk-card { padding: 22px 22px 24px; }
  .record th, .record td { padding: 8px 6px; font-size: 13px; }
  .record-head { flex-wrap: wrap; }
  .accuracy-table th, .accuracy-table td { padding: 12px 10px; }
  .accuracy-table td { font-size: 26px; }
  .accuracy-table thead th { font-size: 11px; letter-spacing: 0.06em; }
  .accuracy-table thead th + th { white-space: nowrap; }
  .accuracy-table tbody th { font-size: 22px; }
  .lead-form { padding: 22px; box-shadow: 6px 6px 0 var(--ink); }
  .record { box-shadow: 6px 6px 0 var(--ink); }
  .price-card { padding: 26px; }
  .faq-a p { padding-right: 0; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .marker { width: 30px; height: 30px; margin: -15px 0 0 -15px; font-size: 18px; }
}