/* AI-D2C · ai-d2c.ru · направление «Чертёж» */
@font-face{font-family:'Onest';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/onest-cyrillic-400-normal.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Onest';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/onest-latin-400-normal.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:'Onest';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/onest-latin-ext-400-normal.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:'Onest';font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/onest-cyrillic-500-normal.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Onest';font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/onest-latin-500-normal.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:'Onest';font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/onest-latin-ext-500-normal.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:'Onest';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/onest-cyrillic-600-normal.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Onest';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/onest-latin-600-normal.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:'Onest';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/onest-latin-ext-600-normal.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:'Onest';font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/onest-cyrillic-700-normal.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Onest';font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/onest-latin-700-normal.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:'Onest';font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/onest-latin-ext-700-normal.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:'Onest';font-style:normal;font-weight:800;font-display:swap;src:url(/assets/fonts/onest-cyrillic-800-normal.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Onest';font-style:normal;font-weight:800;font-display:swap;src:url(/assets/fonts/onest-latin-800-normal.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:'Onest';font-style:normal;font-weight:800;font-display:swap;src:url(/assets/fonts/onest-latin-ext-800-normal.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:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/jetbrains-mono-cyrillic-400-normal.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/jetbrains-mono-latin-400-normal.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:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/jetbrains-mono-latin-ext-400-normal.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:'JetBrains Mono';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/jetbrains-mono-cyrillic-600-normal.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/jetbrains-mono-latin-600-normal.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:'JetBrains Mono';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/jetbrains-mono-latin-ext-600-normal.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}

:root {
  --paper: #EFEDE6;
  --paper-2: #F8F7F2;
  --hatch: #E2DFD5;
  --ink: #121212;
  --ink-2: #3D3B35;
  --muted: #55524A;
  --rule: #C9C5B8;
  --grid: rgba(18, 18, 18, .07);
  --accent: #F0561D;
  --accent-ink: #9E2E08;
  --ok: #1F6B3A;
  --warn: #8A5200;
  --bad: #B3300A;
  --display: 'Onest', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --sans: 'Onest', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  --pad: clamp(20px, 4.4vw, 64px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 90px; }
body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 120px 120px;
  color: var(--ink);
  font: 400 17px/1.55 var(--sans);
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-underline-offset: 3px; }
a:hover { color: var(--accent-ink); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.wrap { max-width: 1440px; margin: 0 auto; padding-inline: var(--pad); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 100; background: var(--ink); color: var(--paper); padding: 10px 14px; }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 20; background: var(--paper); border-bottom: 1px solid var(--ink); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.mark { display: block; --mark-bg: var(--paper); color: var(--ink); }
.brand .mark { height: 38px; width: auto; flex: none; }
.brand .mark g[stroke] { transition: transform .35s ease; }
.brand:hover .mark g[stroke] { transform: translateX(10px); }
.brand:hover { color: var(--ink); }
.brand b { font: 800 26px/1 var(--display); letter-spacing: -.03em; }
.brand span { font: 400 12px/1 var(--mono); color: var(--muted); }
.nav { display: flex; gap: 26px; font-weight: 500; font-size: 15px; }
.nav a { text-decoration: none; }
.nav a[aria-current="page"] { text-decoration: underline; text-decoration-thickness: 2px; }
.head-tools { display: flex; align-items: center; gap: 14px; }
.toggle { display: flex; border: 1px solid var(--ink); font: 400 13px/1 var(--mono); }
.toggle[hidden] { display: none; }
.toggle button { height: 44px; padding: 0 14px; border: 0; background: transparent; color: var(--ink); font: inherit; cursor: pointer; }
.toggle button + button { border-left: 1px solid var(--ink); }
.toggle button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.menu { display: none; }
.menu summary { list-style: none; cursor: pointer; height: 44px; padding: 0 14px; border: 1px solid var(--ink); display: flex; align-items: center; font: 400 13px/1 var(--mono); }
.menu summary::-webkit-details-marker { display: none; }
.menu nav { position: absolute; right: var(--pad); top: 70px; background: var(--paper-2); border: 1px solid var(--ink); display: flex; flex-direction: column; padding: 8px 0; min-width: 220px; }
.menu nav a { padding: 12px 18px; text-decoration: none; }

/* ---------- buttons, forms ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border: 1px solid var(--ink); background: var(--accent); color: var(--ink); font: 600 14px/1.2 var(--mono); text-decoration: none; cursor: pointer; }
.btn:hover { color: var(--ink); background: #FF6A33; }
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: #2A2926; color: var(--paper); }
.btn-line { background: transparent; }
.btn-line:hover { background: var(--paper-2); }
.btn-sm { min-height: 44px; padding: 0 18px; }
label.lbl { display: block; font: 400 12px/1.3 var(--mono); letter-spacing: .06em; color: var(--muted); text-transform: uppercase; margin-bottom: 8px; }
.input, .textarea, .select {
  width: 100%; min-height: 54px; padding: 0 16px; border: 1px solid var(--ink); border-radius: 0;
  background: var(--paper-2); color: var(--ink); font: 400 17px/1.4 var(--mono);
}
.textarea { min-height: 120px; padding: 14px 16px; font-family: var(--sans); resize: vertical; }
.select { font-family: var(--sans); appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%); background-position: calc(100% - 22px) 50%, calc(100% - 16px) 50%; background-size: 6px 6px; background-repeat: no-repeat; }
.check-form { display: flex; flex-wrap: wrap; }
.check-form .input { flex: 1 1 280px; min-height: 58px; font-size: 18px; }
.check-form .btn { min-height: 58px; border-left: 0; }
.hint { font: 400 12px/1.5 var(--mono); color: var(--muted); margin-top: 10px; }
.hp { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }

/* ---------- typography blocks ---------- */
.eyebrow { font: 400 13px/1.3 var(--mono); letter-spacing: .08em; color: var(--muted); text-transform: uppercase; }
.display { margin: 0; font: 800 clamp(42px, 5.8vw, 84px)/1.04 var(--display); letter-spacing: -.035em; }
.display-sub { display: block; margin-top: .35em; font-size: .46em; line-height: 1.15; letter-spacing: -.025em; font-weight: 700; }
/* выделение слова: плашка ровно по высоте строчных букв, не залезает на соседние строки */
mark, .display mark {
  color: inherit; padding: 0 .1em; margin: 0 -.04em;
  background: linear-gradient(to bottom, transparent 22%, var(--accent) 22%, var(--accent) 90%, transparent 90%);
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
.lead { font-size: clamp(18px, 1.6vw, 21px); line-height: 1.5; max-width: 660px; margin: 0; }
.section { padding-block: clamp(56px, 7vw, 88px); border-top: 1px solid var(--ink); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: clamp(28px, 3.5vw, 44px); }
.section-head h2, h2.title { margin: 0; font: 800 clamp(30px, 3.8vw, 52px)/1.08 var(--display); letter-spacing: -.03em; max-width: 1000px; }
.section-head .eyebrow { white-space: nowrap; }
h3 { font: 700 21px/1.25 var(--display); letter-spacing: -.01em; margin: 0; }
.prose { max-width: 780px; }
.prose h2 { font: 800 clamp(26px, 2.8vw, 36px)/1.12 var(--display); margin: 56px 0 16px; letter-spacing: -.025em; }
.prose h3 { margin: 32px 0 10px; }
.prose p, .prose ul, .prose ol { margin: 0 0 16px; }
.prose li { margin-bottom: 6px; }
.prose code, .prose kbd { font: 400 .9em var(--mono); background: var(--paper-2); border: 1px solid var(--rule); padding: 1px 5px; }
pre.code { margin: 0; padding: 20px 22px; background: var(--ink); color: var(--paper); font: 400 14px/1.65 var(--mono); overflow-x: auto; white-space: pre; }
pre.code.accent { background: var(--accent); color: var(--ink); border: 1px solid var(--ink); }
.scroll-x { overflow-x: auto; }

/* ---------- hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 24px 48px; padding-block: clamp(48px, 6vw, 80px) 36px; }
.hero-text { display: flex; flex-direction: column; gap: 28px; }
.layers { display: flex; flex-direction: column; gap: 14px; padding-top: 30px; }
.layer { display: grid; grid-template-columns: 68px minmax(0, 1fr); gap: 14px; }
.layer:nth-child(2) { margin-left: 20px; } .layer:nth-child(3) { margin-left: 40px; } .layer:nth-child(4) { margin-left: 60px; }
.layer-tag { font: 400 12px/1.4 var(--mono); color: var(--muted); padding-top: 4px; }
.layer img { width: 100%; height: 230px; object-fit: cover; object-position: 50% 45%; border: 1px solid var(--ink); }
.layer pre.code { padding: 14px 16px; font-size: 13px; }
.spec { width: 100%; border-collapse: collapse; background: var(--paper-2); border: 1px solid var(--ink); font-size: 15px; }
.spec caption { text-align: left; font: 400 11px/1.4 var(--mono); color: var(--muted); padding-bottom: 6px; }
.spec th, .spec td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.spec th { font-weight: 500; }
.spec td { font-family: var(--mono); font-size: 14px; }
.spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }
.dim { display: flex; align-items: center; gap: 14px; font: 400 13px/1.3 var(--mono); color: var(--muted); padding-bottom: 56px; }
.dim i { flex: 1; height: 1px; background: var(--ink); }

/* ---------- manifesto ---------- */
.cols3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.step { border-top: 3px solid var(--ink); padding-top: 20px; }
.step.hot { border-top-color: var(--accent); }
.step h3 { margin-bottom: 10px; }
.step p { margin: 0; font-size: 18px; }

/* ---------- manifesto: 10 → 1 → 0 ---------- */
.funnel { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--ink); background: var(--paper-2); }
.funnel > div { padding: 28px 28px 30px; position: relative; }
.funnel > div + div { border-left: 1px solid var(--ink); }
.funnel .era { font: 400 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.funnel .n { display: block; font: 800 clamp(96px, 11vw, 168px)/.9 var(--display); letter-spacing: -.06em; margin: 18px 0 6px; }
.funnel .u { font: 600 15px/1.2 var(--mono); }
.funnel p { margin: 14px 0 0; font-size: 17px; }
.funnel > div:last-child { background: var(--accent); }
.funnel > div:last-child .era { color: var(--ink); }
.funnel .links { display: flex; gap: 5px; margin-top: 12px; height: 10px; }
.funnel .links i { flex: 0 0 18px; background: var(--ink); }
.theses { list-style: none; margin: 56px 0 0; padding: 0; counter-reset: t; border-top: 1px solid var(--ink); }
.theses li { counter-increment: t; display: grid; grid-template-columns: 80px minmax(0, 1fr); gap: 16px; padding: 22px 0; border-bottom: 1px solid var(--ink); font: 700 clamp(22px, 2.4vw, 34px)/1.2 var(--display); letter-spacing: -.025em; }
.theses li::before { content: "0" counter(t); font: 400 14px/2.4 var(--mono); color: var(--muted); letter-spacing: 0; }
.theses li span { display: block; margin-top: 6px; font: 400 17px/1.5 var(--sans); letter-spacing: 0; color: var(--ink-2); }

/* ---------- levels ---------- */
.levels { border-top: 1px solid var(--ink); }
.lvl { display: grid; grid-template-columns: 110px minmax(0, 1fr) minmax(0, 420px); gap: 24px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--ink); }
.lvl-n { font: 800 64px/1 var(--display); letter-spacing: -.04em; }
.lvl dt { font-size: 22px; font-weight: 600; }
.lvl dd { margin: 4px 0 0; color: var(--ink-2); }
.lvl .req { font: 400 13px/1.5 var(--mono); color: var(--muted); }
.lvl.hot { background: var(--accent); }
.lvl.hot .lvl-n { padding-left: 14px; }
.lvl.hot dd, .lvl.hot .req { color: var(--ink); }
.tag { display: inline-block; font: 400 12px/1 var(--mono); border: 1px solid var(--ink); padding: 5px 8px; margin-left: 8px; vertical-align: middle; }

/* ---------- console / result ---------- */
.check-demo { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: 24px; }
.result-card { border: 1px solid var(--ink); background: var(--paper-2); padding: 28px; display: flex; flex-direction: column; gap: 18px; }
.big-level { display: flex; align-items: baseline; gap: 10px; font-family: var(--display); }
.big-level b { font-size: 120px; line-height: .9; font-weight: 800; letter-spacing: -.05em; }
.big-level span { font-size: 36px; }
.bar { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 4px; }
.bar i { height: 14px; border: 1px solid var(--ink); }
.bar i.on { background: var(--accent); }

/* ---------- case ---------- */
.case { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 24px; }
.photo { position: relative; border: 1px solid var(--ink); overflow: hidden; background: var(--hatch); }
.photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.photo .callout { z-index: 1; }
.callout { position: absolute; font: 400 13px/1.2 var(--mono); padding: 8px 12px; background: var(--ink); color: var(--paper); }
.callout.hot { background: var(--accent); color: var(--ink); border: 1px solid var(--ink); }
.stat { border: 1px solid var(--ink); background: var(--paper-2); padding: 22px; }
.stat b { display: block; font: 800 44px/1 var(--display); margin-bottom: 8px; }
.stack { display: flex; flex-direction: column; gap: 16px; }

/* ---------- not working ---------- */
.myths { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px 48px; align-items: baseline; }
.myths s { font: 600 clamp(20px, 2.1vw, 27px)/1.25 var(--display); letter-spacing: -.015em; color: #6A665C; text-decoration-thickness: 2px; }
.myths p { margin: 0; font-size: 18px; }

/* ---------- slogan band ---------- */
.hero-slogan { font: 600 clamp(18px, 1.6vw, 22px)/1.35 var(--display); letter-spacing: -.01em; max-width: 720px; color: var(--ink-2); padding-left: 14px; border-left: 3px solid var(--accent); }
.band { background: var(--ink); color: var(--paper); padding-block: clamp(56px, 7vw, 96px); }
.band-in { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 32px 56px; align-items: end; }
.band-slogan { margin: 0; font: 800 clamp(36px, 5vw, 72px)/1.04 var(--display); letter-spacing: -.035em; }
.band .input { background: var(--paper); }
.band-side { display: flex; flex-direction: column; gap: 28px; }
.band .mark-lg { --mark-bg: var(--ink); color: var(--paper); width: 100%; max-width: 360px; height: auto; }
@media (prefers-reduced-motion: no-preference) {
  .mark-lg .flow { stroke-dasharray: 16 14; animation: aid-flow 1.4s linear infinite; }
  @keyframes aid-flow { to { stroke-dashoffset: -30; } }
}
.band .btn { border-color: var(--paper); }

/* ---------- prices ---------- */
.card .price { margin-top: auto; padding-top: 10px; font: 800 26px/1.1 var(--display); letter-spacing: -.02em; }
table.prices th[scope="row"] { background: transparent; white-space: nowrap; }
table.prices td.p { font: 600 15px/1.3 var(--mono); white-space: nowrap; }

/* ---------- services page ---------- */
.svcs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.svc { border: 1px solid var(--ink); background: var(--paper-2); padding: 26px 28px; display: flex; flex-direction: column; gap: 12px; scroll-margin-top: 100px; }
.svc.hot { background: var(--accent); }
.svc-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 6px 16px; }
.svc-head h3 { font-size: 23px; }
.svc-head .price { margin: 0; padding: 0; white-space: nowrap; font: 800 24px/1.1 var(--display); letter-spacing: -.02em; }
.svc-res { margin: 0; font-weight: 600; }
.svc ul { margin: 0; padding-left: 20px; color: var(--ink-2); font-size: 15px; }
.svc ul li { margin-bottom: 4px; }
.svc-term { margin: auto 0 0; padding-top: 10px; border-top: 1px solid var(--rule); font: 400 14px/1.3 var(--mono); }
.svc.hot .svc-term { border-top-color: var(--ink); }
.svc-term span { color: var(--muted); margin-right: 8px; }
.svc.hot .svc-term span, .svc.hot ul { color: var(--ink); }

/* ---------- compare ---------- */
.cmp-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.cmp-lbl { margin: 0; font: 600 13px/1.4 var(--mono); padding: 10px 12px; border: 1px solid var(--ink); }
.cmp-us { background: var(--accent); }
pre.cmp { font-size: 14px; line-height: 1.6; flex: 1; }
pre.cmp .nul { color: #FF8A65; }
pre.cmp .cm { color: #8C887D; }
pre.cmp .ok { color: #9FE0B4; }
.cmp-tbl th[scope="row"] { background: transparent; font-weight: 600; }
.cmp-tbl td { white-space: nowrap; font-size: 14px; }
.cmp-tbl .us { background: var(--accent); border-color: var(--ink); font-weight: 600; }
.cmp-tbl thead th.us { background: var(--accent); }
.cm-y { color: #2F7A4C; } .cm-d { color: #B87A00; } .cm-n { color: var(--bad); }
.cmp-tbl .us .cm-y { color: var(--ink); }

/* ---------- calculator ---------- */
.calc { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 32px; align-items: start; }
.calc-form { display: flex; flex-direction: column; gap: 16px; }
.calc-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.calc-checks { border: 1px solid var(--rule); margin: 0; padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 8px; }
.calc-checks label { display: flex; gap: 10px; align-items: center; font-size: 15px; }
.calc-checks input { width: 20px; height: 20px; accent-color: var(--ink); }
.calc-res { position: sticky; top: 100px; border: 1px solid var(--ink); background: var(--paper-2); padding: 22px; }
.calc-tbl td, .calc-tbl th { font-size: 14px; }
.calc-tbl tfoot th { text-align: left; font-weight: 600; background: transparent; }
.calc-total th, .calc-total td { font: 800 22px/1.2 var(--display) !important; background: var(--accent) !important; }
.calc-monthly { margin: 14px 0 0; }
.price-sub { font: 500 14px/1.4 var(--sans); color: var(--ink-2); letter-spacing: 0; }

/* ---------- faq ---------- */
.faq { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; border-top: 1px solid var(--ink); }
.faq .q { padding: 24px 0; border-bottom: 1px solid var(--rule); }
.faq h3 { font-size: 22px; margin-bottom: 10px; }
.faq p { margin: 0; color: var(--ink-2); }

/* ---------- services / doors ---------- */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.card { border: 1px solid var(--ink); background: var(--paper-2); padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.card p { margin: 0; }
.card .mono { font-size: 12px; color: var(--muted); }
a.door { text-decoration: none; min-height: 190px; justify-content: space-between; }
.cards.two { grid-template-columns: repeat(3, minmax(0, 1fr)); }
a.door p { margin: 0; color: var(--ink-2); font-size: 15px; }
a.door b { font: 700 clamp(21px, 2vw, 28px)/1.2 var(--display); letter-spacing: -.02em; }
a.door:hover { background: var(--accent); color: var(--ink); }

/* ---------- contact ---------- */
.contact { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 48px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 20px; }
.form-grid .full { grid-column: 1 / -1; }
.consent { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; }
.consent input { width: 22px; height: 22px; margin-top: 2px; accent-color: var(--ink); flex: none; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: var(--paper); padding-block: clamp(56px, 7vw, 80px); margin-top: 0; }
.site-footer a { color: var(--paper); }
.site-footer a:hover { color: var(--accent); }
.foot { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; }
.foot-photo { position: relative; border: 1px solid #55524A; overflow: hidden; min-height: 320px; }
.foot-photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.1); }
.foot-photo::after { content: ""; position: absolute; inset: 0; background: var(--accent); mix-blend-mode: multiply; opacity: .5; }
.foot-photo span { position: absolute; left: 16px; bottom: 16px; z-index: 1; background: var(--ink); font: 400 12px/1 var(--mono); padding: 7px 10px; }
.foot-claim { font: 700 clamp(24px, 2.4vw, 34px)/1.2 var(--display); letter-spacing: -.02em; margin: 0 0 24px; }
.foot-legal { color: #CFCBC0; font-size: 15px; line-height: 1.7; margin: 0 0 24px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 10px 22px; font: 400 14px/1.4 var(--mono); }

/* ---------- agent view ---------- */
.agent-view { margin: 0; padding-block: 40px 80px; }
.agent-view[hidden] { display: none; }
.agent-view .req-line { font: 400 13px/1.4 var(--mono); color: var(--muted); margin-bottom: 12px; }
.agent-view pre { margin: 0; padding: 28px; background: var(--ink); color: var(--paper); font: 400 15px/1.65 var(--mono); white-space: pre-wrap; word-break: break-word; min-height: 60vh; }

/* ---------- report ---------- */
.report-head { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 24px; padding-block: 48px 32px; }
.report-meta { font: 400 13px/1.7 var(--mono); color: var(--muted); }
.summary { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.summary div { border: 1px solid var(--ink); background: var(--paper-2); padding: 16px; }
.summary b { display: block; font: 800 36px/1 var(--display); }
.blockers { border: 1px solid var(--ink); background: var(--accent); padding: 20px 22px; }
.blockers ul { margin: 8px 0 0; padding-left: 20px; }
.group { margin-top: 40px; }
.group h2 { font: 800 clamp(24px, 2.4vw, 32px)/1.1 var(--display); margin: 0 0 12px; display: flex; justify-content: space-between; gap: 16px; align-items: baseline; }
.group h2 a { font: 400 13px/1 var(--mono); }
.rows { border-top: 1px solid var(--ink); }
.row { display: grid; grid-template-columns: 168px minmax(0, 1fr); gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--rule); align-items: start; }
.row .t { font-weight: 600; font-size: 17px; }
.row .d { color: var(--ink-2); font-size: 15px; margin-top: 3px; overflow-wrap: anywhere; }
.row .fix { font-size: 15px; margin-top: 8px; padding-left: 12px; border-left: 3px solid var(--accent); }
.row .fix b { font-weight: 600; }
.chips { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.chip { display: inline-block; font: 600 12px/1 var(--mono); letter-spacing: .05em; text-transform: uppercase; padding: 7px 10px; border: 1px solid var(--ink); }
.chip-fail { background: var(--bad); color: #fff; border-color: var(--bad); }
.chip-warn { background: #F4C35C; color: var(--ink); }
.chip-pass { background: #2F7A4C; color: #fff; border-color: #2F7A4C; }
.chip-na { background: transparent; color: var(--muted); border-color: var(--rule); }
.pr { font: 400 12px/1.2 var(--mono); color: var(--muted); }
.pr-crit { color: var(--ink); font-weight: 600; }
.passed { border-bottom: 1px solid var(--rule); }
.passed summary { cursor: pointer; padding: 14px 0; font: 600 14px/1.3 var(--mono); list-style: none; display: flex; gap: 10px; align-items: center; }
.passed summary::-webkit-details-marker { display: none; }
.passed summary::before { content: "+"; display: inline-grid; place-items: center; width: 22px; height: 22px; border: 1px solid var(--ink); }
.passed[open] summary::before { content: "–"; }
.passed .row:last-child { border-bottom: 0; }
.note { border: 1px dashed var(--ink); padding: 18px 20px; font-size: 15px; background: var(--paper-2); }
.alert { border: 1px solid var(--ink); background: var(--paper-2); padding: 22px; }
.alert.bad { border-left: 8px solid var(--bad); }
.loading { position: fixed; inset: 0; z-index: 50; background: rgba(239, 237, 230, .94); display: none; align-items: center; justify-content: center; text-align: center; }
.loading.on { display: flex; }
.loading b { display: block; font: 800 34px/1.1 var(--display); letter-spacing: -.03em; margin-bottom: 10px; }

/* ---------- checklist ---------- */
.stages { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; }
.stage { border: 1px solid var(--ink); background: var(--paper-2); padding: 22px 22px 24px; position: relative; display: flex; flex-direction: column; gap: 10px; }
.stage + .stage { border-left: 0; }
.stage:not(:last-child)::after { content: "→"; position: absolute; right: -15px; top: calc(50% - 14px); z-index: 1; width: 28px; height: 28px; display: grid; place-items: center; background: var(--ink); color: var(--paper); font: 600 15px/1 var(--mono); }
.stage .when { font: 400 12px/1.3 var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.stage b { font: 800 24px/1.1 var(--display); letter-spacing: -.02em; }
.stage p { margin: 0; font-size: 15px; }
.stage .lv { margin-top: auto; font: 600 12px/1 var(--mono); padding-top: 12px; }
.stage.hot { background: var(--accent); }
.stage.hot .when { color: var(--ink); }
.secchips { display: flex; flex-wrap: wrap; gap: 6px; }
.secchips a { font: 400 12px/1 var(--mono); border: 1px solid var(--ink); padding: 5px 7px; text-decoration: none; background: var(--paper); }
.secchips a:hover { background: var(--ink); color: var(--paper); }
.map { width: 100%; border-collapse: collapse; }
.map th, .map td { padding: 12px 10px; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: middle; }
.map thead th { font: 400 12px/1.3 var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid var(--ink); }
.map td.num { font: 600 13px var(--mono); width: 44px; }
.map td.name a { font-weight: 600; text-decoration: none; }
.map td.name a:hover { text-decoration: underline; }
.map td.sbar { width: 44%; }
.stack-bar { display: flex; height: 16px; width: 100%; min-width: 120px; background: repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), var(--rule) calc(10% - 1px) 10%); }
.stack-bar i + i { border-left: 2px solid var(--paper); }
.stack-bar i { display: block; height: 100%; }
.stack-bar .ok { background: #2F7A4C; }
.stack-bar .c { background: var(--bad); } .stack-bar .h { background: #F4C35C; } .stack-bar .m { background: var(--rule); }
.map td.cnt { font: 400 13px var(--mono); white-space: nowrap; }
.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; font: 400 13px/1.3 var(--mono); }
.legend i { display: inline-block; width: 14px; height: 14px; vertical-align: -2px; margin-right: 6px; }
.principles { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.principles div { border: 1px solid var(--ink); background: var(--paper-2); padding: 18px; }
.principles b { display: block; font: 800 20px/1.2 var(--display); letter-spacing: -.02em; margin-bottom: 8px; }
.principles p { margin: 0; font-size: 15px; color: var(--ink-2); }
.items { width: 100%; border-collapse: collapse; }
.items th, .items td { text-align: left; vertical-align: top; padding: 14px 10px; border-bottom: 1px solid var(--rule); }
.items thead th { font: 400 12px/1.3 var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid var(--ink); }
.items td:first-child { width: 150px; }
.items .t { font-weight: 600; font-size: 17px; }
.items .d { font-size: 15px; color: var(--ink-2); margin-top: 4px; }
.items .d code { font: 400 13px var(--mono); background: var(--paper-2); border: 1px solid var(--rule); padding: 0 4px; }
.items .note { border: 0; background: none; padding: 0; margin-top: 6px; font-size: 14px; color: var(--muted); }
.items td.how { width: 130px; }
.how-auto { font: 600 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .05em; padding: 6px 8px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); text-decoration: none; display: inline-block; }
.how-manual { font: 400 12px/1.3 var(--mono); color: var(--muted); }
.new { font: 600 11px/1 var(--mono); border: 1px solid var(--ink); padding: 2px 5px; margin-left: 6px; vertical-align: 2px; }
table.tbl { width: 100%; border-collapse: collapse; background: var(--paper-2); font-size: 15px; }
table.tbl th, table.tbl td { border: 1px solid var(--rule); padding: 9px 12px; text-align: left; vertical-align: top; }
table.tbl th { background: var(--hatch); font-weight: 600; }
table.tbl code { font: 400 13px var(--mono); }
.toc { display: flex; flex-wrap: wrap; gap: 8px 18px; font: 400 14px/1.4 var(--mono); }
.crumbs { font: 400 13px/1.4 var(--mono); color: var(--muted); padding-top: 28px; }
.crumbs a { color: var(--muted); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .stages { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .stage + .stage { border-left: 1px solid var(--ink); }
  .stage::after { display: none; }
  .principles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav { display: none; }
  .menu { display: block; }
  .band-in { grid-template-columns: minmax(0, 1fr); }
  .hero, .check-demo, .case, .contact, .foot, .report-head { grid-template-columns: minmax(0, 1fr); }
  .lvl { grid-template-columns: 80px minmax(0, 1fr); }
  .lvl .req { grid-column: 2; }
  .lvl-n { font-size: 52px; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .faq { grid-template-columns: minmax(0, 1fr); }
  .calc, .calc-2 { grid-template-columns: minmax(0, 1fr); }
  .calc-res { position: static; }
  .cols3, .cards, .cards.two, .svcs, .cmp-pair, .myths, .form-grid, .summary { grid-template-columns: minmax(0, 1fr); }
  .summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .layer { margin-left: 0 !important; grid-template-columns: 52px minmax(0, 1fr); }
  .section-head { flex-direction: column; align-items: flex-start; }
  .brand span { display: none; }
  .brand .mark { height: 26px; }
  .brand b { font-size: 22px; }
  pre.cmp { font-size: 11.5px; padding: 16px; }
  .site-header .wrap { gap: 10px; }
  .head-tools { gap: 8px; }
  .toggle button { padding: 0 9px; font-size: 12px; }
  .menu summary { padding: 0 10px; }
  .svc-head .price { white-space: normal; }
  .head-tools .btn { display: none; }
  .row { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .chips { flex-direction: row; align-items: center; }
  .funnel { grid-template-columns: minmax(0, 1fr); }
  .funnel > div + div { border-left: 0; border-top: 1px solid var(--ink); }
  .theses li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .check-form .btn { width: 100%; border-left: 1px solid var(--ink); border-top: 0; }
  .stages, .principles { grid-template-columns: minmax(0, 1fr); }
  .items thead { display: none; }
  .items tr { display: block; border-bottom: 1px solid var(--rule); padding: 10px 0; }
  .items td { display: block; border: 0; padding: 4px 0; width: auto !important; }
  .map td.sbar { display: none; }
  .big-level b { font-size: 88px; }
}
@media (prefers-reduced-motion: no-preference) {
  .layer { transition: transform .25s ease; }
  .layers:hover .layer:nth-child(2) { transform: translateX(6px); }
  .layers:hover .layer:nth-child(3) { transform: translateX(12px); }
  .layers:hover .layer:nth-child(4) { transform: translateX(18px); }
}

/* ---------- print (отчёт в PDF) ---------- */
@media print {
  .passed { display: block; } .passed > * { display: block !important; }
  body { background: #fff; font-size: 11pt; }
  .site-header, .site-footer, .toggle, .no-print, .loading, form { display: none !important; }
  .section { border-top: 0; padding-block: 16px; }
  .row { break-inside: avoid; }
  a { text-decoration: none; }
}