:root {
    --bg: #F6F7F7;
    --surface: #FFFFFF;
    --surface-2: #ECEEEF;
    --ink: #0A0B0D;
    --ink-2: #52575C;
    --ink-3: #9AA0A6;
    --line: #E7E9EA;
    --line-2: #EDEEEF;
    --dark: #0A0B0D;
    --dark-ink: #F2F3F4;
    --dark-ink-2: #8E959B;
    --dark-line: #26292C;
    --accent: #2F49C7;
    --accent-soft: #EAEDFA;
    --sans: 'Manrope', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --mono: 'DM Mono', ui-monospace, Menlo, monospace;
    --wrap: 1120px;
  }
* { box-sizing: border-box; }
[id] { scroll-margin-top: 120px; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    -webkit-font-smoothing: antialiased;
  }
h1, h2, h3 { margin: 0; text-wrap: balance; }
p { margin: 0; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
input { font-family: inherit; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: 40px; padding-right: 40px; }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: #8A9096; }
.btn-primary { height: 52px; padding: 0 30px; border-radius: 999px; background: var(--ink); color: #fff; font-size: 16px; font-weight: 600; }
.btn-primary:hover { background: #22262A; }
.btn-ghost { height: 52px; padding: 0 30px; border-radius: 999px; background: transparent; border: 1px solid #D6D9DB; color: var(--ink); font-size: 16px; font-weight: 600; }
.btn-ghost:hover { border-color: var(--ink); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; }
/* prototype chrome */
  .bar {
    position: sticky; top: 0; z-index: 100;
    background: rgba(10,11,13,0.94); backdrop-filter: blur(16px);
    display: flex; align-items: center; justify-content: center; gap: 6px;
    padding: 10px 16px; flex-wrap: wrap;
  }
@media (max-width: 900px) {
    .wrap { padding-left: 22px; padding-right: 22px; }
    .col2, .col-side, .col-aside { grid-template-columns: minmax(0, 1fr) !important; gap: 32px !important; }
    .hero-h1 { font-size: 44px !important; }
    .h2 { font-size: 32px !important; }
    .hero-visual { display: none !important; }
    .nav-links { display: none !important; }
    .sticky-side { position: static !important; }
  }

/* --- многостраничная версия --- */
.screen { display: block; }
[id] { scroll-margin-top: 90px; }
img { max-width: 100%; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* ---------- многостраничная обвязка ---------- */
.topbar { position:sticky; top:0; z-index:30; background:rgba(246,247,247,.85); backdrop-filter:blur(20px); border-bottom:1px solid #E4E6E7; }
.topbar-in { height:64px; display:flex; align-items:center; justify-content:space-between; gap:32px; }
.logo { display:flex; align-items:center; gap:10px; color:var(--ink); font-size:17px; font-weight:700; letter-spacing:-.02em; }
.logo:hover { color:var(--ink); }
.nav-links { display:flex; align-items:center; gap:30px; font-size:15px; font-weight:500; }
.nav-links a { color:var(--ink-2); }
.topbar-cta { display:flex; align-items:center; gap:18px; }
.muted { color:var(--ink-2); font-size:15px; font-weight:500; }
.btn { display:inline-flex; align-items:center; justify-content:center; height:52px; padding:0 30px; border-radius:999px;
       background:var(--ink); color:#fff; font-size:16px; font-weight:600; border:1px solid var(--ink); cursor:pointer; }
.btn:hover { background:#22262A; color:#fff; }
.btn-sm { height:38px; padding:0 20px; font-size:14px; }
.btn-ghost2 { background:transparent; color:var(--ink); border:1px solid #D6D9DB; }
.btn-ghost2:hover { background:transparent; color:var(--ink); border-color:var(--ink); }
.btn-light { background:#fff; color:var(--ink); border-color:#fff; }
.btn-light:hover { background:#F0F1F2; color:var(--ink); }
.btn[disabled], .btn[aria-disabled="true"] { background:#F1F2F3; color:#A8AEB3; border-color:var(--line); cursor:not-allowed; }

footer { border-top:1px solid var(--line); margin-top:120px; background:var(--bg); }
.foot-grid { display:grid; grid-template-columns:1.4fr repeat(3,minmax(0,1fr)); gap:40px; padding:56px 0 40px; }
.foot-col { display:flex; flex-direction:column; gap:12px; font-size:14px; }
.foot-col h4 { margin:0; font-size:13px; font-weight:700; color:var(--ink); }
.foot-col a { color:#6B7075; }
.foot-about p { font-size:14px; line-height:1.6; color:#6B7075; max-width:280px; }
.foot-bottom { display:flex; flex-wrap:wrap; gap:12px 24px; justify-content:space-between;
               padding:24px 0 56px; border-top:1px solid var(--line); font-size:13px; color:var(--ink-3); }

/* ---------- аккордеоны на details ---------- */
details.acc { border-top:1px solid #E2E4E6; }
details.acc > summary { list-style:none; cursor:pointer; padding:24px 0; display:flex; align-items:center;
                        justify-content:space-between; gap:24px; font-size:19px; font-weight:600; letter-spacing:-.015em; }
details.acc > summary::-webkit-details-marker { display:none; }
details.acc .chev { flex-shrink:0; width:28px; height:28px; border-radius:999px; background:#EDEEEF;
                    display:flex; align-items:center; justify-content:center; transition:transform .18s, background .18s; }
details.acc[open] .chev { background:var(--ink); transform:rotate(45deg); }
details.acc[open] .chev svg path { stroke:#fff; }
details.acc .acc-body { padding:0 60px 28px 0; }
details.mod { border-bottom:1px solid var(--line-2); border-top:none; }
details.mod > summary { padding:24px 32px; gap:24px; }
details.mod[open] > summary { background:#FBFCFD; }
.mod-num { font-family:var(--mono); font-size:13px; color:#B4B9BD; width:28px; flex-shrink:0; }
details.mod[open] .mod-num { color:var(--accent); }
.mod-txt { display:flex; flex-direction:column; gap:4px; flex-grow:1; }
.mod-txt b { font-size:19px; font-weight:600; letter-spacing:-.015em; }
.mod-txt span { font-size:14px; color:var(--ink-3); font-weight:400; }
.free-tag { font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase;
            padding:5px 9px; border-radius:6px; background:var(--accent); color:#fff; flex-shrink:0; font-weight:500; }
.lesson { display:flex; align-items:center; gap:14px; padding:11px 0; border-top:1px solid #F1F2F3; font-weight:400; }
.lesson span:first-of-type { font-size:16px; color:#2E3236; flex-grow:1; }
.lesson time { font-family:var(--mono); font-size:13px; color:var(--ink-3); }

/* ---------- карточки товара ---------- */
.prod { background:var(--surface); border:1px solid var(--line); border-radius:22px; padding:28px;
        display:flex; flex-direction:column; gap:16px; }
.prod h3 { font-size:24px; line-height:1.2; letter-spacing:-.025em; font-weight:700; }
.tag { font-family:var(--mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase;
       padding:5px 10px; border-radius:6px; }
.tag-design { background:#EFF1F2; color:var(--ink-2); }
.tag-code { background:var(--accent-soft); color:var(--accent); }
.tag-intro { background:#E7F0E9; color:#2C6E4A; }
.prod-foot { margin-top:auto; padding-top:18px; border-top:1px solid var(--line-2);
             display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; }
.price { display:flex; flex-direction:column; gap:3px; }
.price strong { font-size:26px; font-weight:700; letter-spacing:-.03em; }
.price span { font-size:13px; color:var(--ink-3); }
.filters { display:flex; gap:8px; flex-wrap:wrap; }
.filters button { height:40px; padding:0 18px; border-radius:999px; font-size:14px; font-weight:600;
                  border:1px solid #D6D9DB; background:transparent; color:var(--ink-2); }
.filters button[aria-pressed="true"] { background:var(--ink); color:#fff; border-color:var(--ink); }
.seg { display:flex; gap:4px; padding:4px; background:var(--surface-2); border-radius:999px; }
.seg button { height:40px; padding:0 24px; border-radius:999px; font-size:15px; font-weight:600; color:#6B7075; background:transparent; }
.seg button[aria-pressed="true"] { background:#fff; color:var(--ink); box-shadow:0 1px 2px rgba(10,11,13,.08); }
.opt { display:flex; align-items:flex-start; gap:12px; padding:16px; border-radius:14px; border:1.5px solid #E4E6E7;
       background:#fff; text-align:left; width:100%; cursor:pointer; }
.opt[aria-pressed="true"], .opt[aria-checked="true"] { border-color:var(--accent); background:#FBFCFD; }
.dot { flex-shrink:0; width:18px; height:18px; border-radius:999px; border:1.5px solid #C5CACE; background:#fff;
       display:flex; align-items:center; justify-content:center; margin-top:2px; }
.opt[aria-checked="true"] .dot { border-color:var(--accent); background:var(--accent); }
.dot i { width:6px; height:6px; border-radius:999px; background:#fff; display:block; }
.box { flex-shrink:0; width:22px; height:22px; border-radius:7px; border:1.5px solid #C5CACE; background:#fff;
       display:flex; align-items:center; justify-content:center; margin-top:1px; }
.opt[aria-checked="true"] .box { border-color:var(--accent); background:var(--accent); }
.box svg path { stroke:transparent; }
.opt[aria-checked="true"] .box svg path { stroke:#fff; }

.notice-draft { background:#FBF4EE; border:1px solid #EAD9C8; border-radius:14px; padding:16px 18px;
                font-size:14px; line-height:1.6; color:#7A5233; }
@media (max-width:900px) {
  .foot-grid { grid-template-columns:minmax(0,1fr); gap:28px; }
  details.mod > summary { padding:20px; }
  details.acc .acc-body { padding-right:0; }
}

.doc h2 { font-size:42px; line-height:1.06; letter-spacing:-.04em; font-weight:800; margin:0 0 12px; }
.doc .updated { font-family:var(--mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-3); margin:0 0 40px; }
.doc h3 { font-size:21px; line-height:1.3; letter-spacing:-.02em; font-weight:700; margin:44px 0 14px; }
.doc p { font-size:17px; line-height:1.72; color:#22262A; margin:0 0 18px; }
.doc ul, .doc ol { font-size:17px; line-height:1.72; color:#22262A; padding-left:22px; margin:0 0 18px; }
.doc li { margin-bottom:9px; }
.doc li::marker { color:var(--ink-3); }
@media (max-width:640px) { .doc h2 { font-size:32px; } }

/* ---------- подвал: заголовок колонки и соцсети ---------- */
.foot-col .foot-h { margin:0; font-size:13px; font-weight:700; color:var(--ink); }
.soc { display:flex; align-items:center; gap:9px; margin-top:18px; }
.soc-i { display:inline-flex; width:32px; height:32px; border:1px solid var(--line);
         border-radius:10px; align-items:center; justify-content:center;
         color:var(--ink-3); opacity:.5; cursor:default; }
.soc-i svg { width:16px; height:16px; }
.soc-note { font-family:var(--mono); font-size:11px; letter-spacing:.09em;
            text-transform:uppercase; color:var(--ink-3); }

/* ---------- многостраничная обвязка ---------- */
.topbar { position:sticky; top:0; z-index:30; background:rgba(246,247,247,.85); backdrop-filter:blur(20px); border-bottom:1px solid #E4E6E7; }
.topbar-in { height:64px; display:flex; align-items:center; justify-content:space-between; gap:32px; }
.logo { display:flex; align-items:center; gap:10px; color:var(--ink); font-size:17px; font-weight:700; letter-spacing:-.02em; }
.logo:hover { color:var(--ink); }
.nav-links { display:flex; align-items:center; gap:30px; font-size:15px; font-weight:500; }
.nav-links a { color:var(--ink-2); }
.topbar-cta { display:flex; align-items:center; gap:18px; }
.muted { color:var(--ink-2); font-size:15px; font-weight:500; }
.btn { display:inline-flex; align-items:center; justify-content:center; height:52px; padding:0 30px; border-radius:999px;
       background:var(--ink); color:#fff; font-size:16px; font-weight:600; border:1px solid var(--ink); cursor:pointer; }
.btn:hover { background:#22262A; color:#fff; }
.btn-sm { height:38px; padding:0 20px; font-size:14px; }
.btn-ghost2 { background:transparent; color:var(--ink); border:1px solid #D6D9DB; }
.btn-ghost2:hover { background:transparent; color:var(--ink); border-color:var(--ink); }
.btn-light { background:#fff; color:var(--ink); border-color:#fff; }
.btn-light:hover { background:#F0F1F2; color:var(--ink); }
.btn[disabled], .btn[aria-disabled="true"] { background:#F1F2F3; color:#A8AEB3; border-color:var(--line); cursor:not-allowed; }

footer { border-top:1px solid var(--line); margin-top:120px; background:var(--bg); }
.foot-grid { display:grid; grid-template-columns:1.3fr repeat(4,minmax(0,1fr)); gap:32px; padding:56px 0 40px; }
.foot-col { display:flex; flex-direction:column; gap:12px; font-size:14px; }
.foot-col h4 { margin:0; font-size:13px; font-weight:700; color:var(--ink); }
.foot-col a { color:#6B7075; }
.foot-about p { font-size:14px; line-height:1.6; color:#6B7075; max-width:280px; }
.foot-bottom { display:flex; flex-wrap:wrap; gap:12px 24px; justify-content:space-between;
               padding:24px 0 56px; border-top:1px solid var(--line); font-size:13px; color:var(--ink-3); }

/* ---------- аккордеоны на details ---------- */
details.acc { border-top:1px solid #E2E4E6; }
details.acc > summary { list-style:none; cursor:pointer; padding:24px 0; display:flex; align-items:center;
                        justify-content:space-between; gap:24px; font-size:19px; font-weight:600; letter-spacing:-.015em; }
details.acc > summary::-webkit-details-marker { display:none; }
details.acc .chev { flex-shrink:0; width:28px; height:28px; border-radius:999px; background:#EDEEEF;
                    display:flex; align-items:center; justify-content:center; transition:transform .18s, background .18s; }
details.acc[open] .chev { background:var(--ink); transform:rotate(45deg); }
details.acc[open] .chev svg path { stroke:#fff; }
details.acc .acc-body { padding:0 60px 28px 0; }
details.mod { border-bottom:1px solid var(--line-2); border-top:none; }
details.mod > summary { padding:24px 32px; gap:24px; }
details.mod[open] > summary { background:#FBFCFD; }
.mod-num { font-family:var(--mono); font-size:13px; color:#B4B9BD; width:28px; flex-shrink:0; }
details.mod[open] .mod-num { color:var(--accent); }
.mod-txt { display:flex; flex-direction:column; gap:4px; flex-grow:1; }
.mod-txt b { font-size:19px; font-weight:600; letter-spacing:-.015em; }
.mod-txt span { font-size:14px; color:var(--ink-3); font-weight:400; }
.free-tag { font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase;
            padding:5px 9px; border-radius:6px; background:var(--accent); color:#fff; flex-shrink:0; font-weight:500; }
.lesson { display:flex; align-items:center; gap:14px; padding:11px 0; border-top:1px solid #F1F2F3; font-weight:400; }
.lesson span:first-of-type { font-size:16px; color:#2E3236; flex-grow:1; }
.lesson time { font-family:var(--mono); font-size:13px; color:var(--ink-3); }

/* ---------- карточки товара ---------- */
.prod { background:var(--surface); border:1px solid var(--line); border-radius:22px; padding:28px;
        display:flex; flex-direction:column; gap:16px; }
.prod h3 { font-size:24px; line-height:1.2; letter-spacing:-.025em; font-weight:700; }
.tag { font-family:var(--mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase;
       padding:5px 10px; border-radius:6px; }
.tag-design { background:#EFF1F2; color:var(--ink-2); }
.tag-code { background:var(--accent-soft); color:var(--accent); }
.tag-intro { background:#E7F0E9; color:#2C6E4A; }
.prod-foot { margin-top:auto; padding-top:18px; border-top:1px solid var(--line-2);
             display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; }
.price { display:flex; flex-direction:column; gap:3px; }
.price strong { font-size:26px; font-weight:700; letter-spacing:-.03em; }
.price span { font-size:13px; color:var(--ink-3); }
.filters { display:flex; gap:8px; flex-wrap:wrap; }
.filters button { height:40px; padding:0 18px; border-radius:999px; font-size:14px; font-weight:600;
                  border:1px solid #D6D9DB; background:transparent; color:var(--ink-2); }
.filters button[aria-pressed="true"] { background:var(--ink); color:#fff; border-color:var(--ink); }
.seg { display:flex; gap:4px; padding:4px; background:var(--surface-2); border-radius:999px; }
.seg button { height:40px; padding:0 24px; border-radius:999px; font-size:15px; font-weight:600; color:#6B7075; background:transparent; }
.seg button[aria-pressed="true"] { background:#fff; color:var(--ink); box-shadow:0 1px 2px rgba(10,11,13,.08); }
.opt { display:flex; align-items:flex-start; gap:12px; padding:16px; border-radius:14px; border:1.5px solid #E4E6E7;
       background:#fff; text-align:left; width:100%; cursor:pointer; }
.opt[aria-pressed="true"], .opt[aria-checked="true"] { border-color:var(--accent); background:#FBFCFD; }
.dot { flex-shrink:0; width:18px; height:18px; border-radius:999px; border:1.5px solid #C5CACE; background:#fff;
       display:flex; align-items:center; justify-content:center; margin-top:2px; }
.opt[aria-checked="true"] .dot { border-color:var(--accent); background:var(--accent); }
.dot i { width:6px; height:6px; border-radius:999px; background:#fff; display:block; }
.box { flex-shrink:0; width:22px; height:22px; border-radius:7px; border:1.5px solid #C5CACE; background:#fff;
       display:flex; align-items:center; justify-content:center; margin-top:1px; }
.opt[aria-checked="true"] .box { border-color:var(--accent); background:var(--accent); }
.box svg path { stroke:transparent; }
.opt[aria-checked="true"] .box svg path { stroke:#fff; }

.notice-draft { background:#FBF4EE; border:1px solid #EAD9C8; border-radius:14px; padding:16px 18px;
                font-size:14px; line-height:1.6; color:#7A5233; }
@media (max-width:900px) {
  .foot-grid { grid-template-columns:minmax(0,1fr); gap:28px; }
  details.mod > summary { padding:20px; }
  details.acc .acc-body { padding-right:0; }
}

/* ---------- юридические страницы ---------- */
.doc { max-width:760px; }
.doc h1 { font-size:42px; line-height:1.06; letter-spacing:-.04em; font-weight:800; margin:0 0 12px; }
.doc h2 { font-size:21px; line-height:1.3; letter-spacing:-.02em; font-weight:700; margin:44px 0 14px; }
.doc .updated { font-family:var(--mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-3); margin:0 0 40px; }
.doc h3 { font-size:21px; line-height:1.3; letter-spacing:-.02em; font-weight:700; margin:44px 0 14px; }
.doc p { font-size:17px; line-height:1.72; color:#22262A; margin:0 0 18px; }
.doc ul, .doc ol { font-size:17px; line-height:1.72; color:#22262A; padding-left:22px; margin:0 0 18px; }
.doc li { margin-bottom:9px; }
.doc li::marker { color:var(--ink-3); }
@media (max-width:640px){ .doc h2 { font-size:32px; } }

/* ---------- кабинет ---------- */
.dash-mod { display:flex; align-items:center; gap:12px; width:100%; padding:12px 14px; border-radius:12px;
            font-size:15px; font-weight:500; color:var(--ink-2); text-align:left; background:transparent; }
.dash-mod:hover { background:var(--bg); }
.dash-mod[aria-current="true"] { background:var(--accent-soft); color:var(--ink); font-weight:600; }
.dash-mod[aria-current="true"] .mod-num { color:var(--accent); }
.dash-lesson { display:flex; align-items:center; gap:12px; padding:12px 0; border-top:1px solid #F1F2F3;
               width:100%; text-align:left; background:transparent; font-size:16px; color:#2E3236; }
.dash-lesson[aria-current="true"] { font-weight:700; }
.dash-lesson .tick { width:20px; height:20px; border-radius:999px; border:1.5px solid #C5CACE; flex-shrink:0;
                     display:flex; align-items:center; justify-content:center; }
.dash-lesson[data-done="1"] .tick { background:var(--accent); border-color:var(--accent); }
.dash-lesson[data-done="1"] .tick svg path { stroke:#fff; }
.dash-lesson .tick svg path { stroke:transparent; }