:root {
  /* тема EL'Auto (elautogroup.ru): чёрный, красный #ea0102, жёлтый, Montserrat 600 */
  --bg: #0a0a0a; --surface: #161616; --surface-2: #222222; --line: #2e2e2e;
  --fg: #ffffff; --muted: #a8a8a8; --accent: #ea0102; --accent-ink: #ffffff; --accent-soft: rgba(234,1,2,.16);
  --yellow: #ffcc1f; --yellow-ink: #121212;
  --ok: #3fc46f; --ok-soft: rgba(63,196,111,.14); --bad: #ff5a4f; --bad-soft: rgba(255,90,79,.14); --warn: #ffcc1f; --warn-soft: rgba(255,204,31,.13);
  --lcd-bg: #a9b7a0; --lcd-fg: #17201a; --lamp-off: #333333;
  --f-display: 'Montserrat', 'Segoe UI', Arial, sans-serif;
  --f-body: 'Montserrat', 'Segoe UI', Arial, sans-serif;
  --f-mono: 'JetBrains Mono', Consolas, 'Courier New', monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) { :root[data-theme="auto"] {
  --bg: #f4f4f4; --surface: #ffffff; --surface-2: #ececec; --line: #dddddd;
  --fg: #121212; --muted: #5c5c5c; --accent: #d80102; --accent-ink: #ffffff; --accent-soft: rgba(216,1,2,.09);
  --yellow: #ffcc1f; --yellow-ink: #121212;
  --ok: #1d8a4a; --ok-soft: rgba(29,138,74,.11); --bad: #c62a20; --bad-soft: rgba(198,42,32,.1); --warn: #9a6f00; --warn-soft: rgba(255,204,31,.22);
  --lcd-bg: #b7c4ad; --lcd-fg: #17201a; --lamp-off: #cfcfcf; color-scheme: light; } }
:root[data-theme="light"] {
  --bg: #f4f4f4; --surface: #ffffff; --surface-2: #ececec; --line: #dddddd;
  --fg: #121212; --muted: #5c5c5c; --accent: #d80102; --accent-ink: #ffffff; --accent-soft: rgba(216,1,2,.09);
  --yellow: #ffcc1f; --yellow-ink: #121212;
  --ok: #1d8a4a; --ok-soft: rgba(29,138,74,.11); --bad: #c62a20; --bad-soft: rgba(198,42,32,.1); --warn: #9a6f00; --warn-soft: rgba(255,204,31,.22);
  --lcd-bg: #b7c4ad; --lcd-fg: #17201a; --lamp-off: #cfcfcf; color-scheme: light; }

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 15px/1.6 var(--f-body); -webkit-font-smoothing: antialiased; }
button { font: inherit; color: inherit; cursor: pointer; }
button:focus-visible, input:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--f-display); text-wrap: balance; margin: 0; }
.eyebrow { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.muted { color: var(--muted); }

/* top bar */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--bg); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 14px; padding: 10px 16px; max-width: 1240px; margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 10px; background: none; border: 0; padding: 0; }
.brand svg { width: 30px; height: 30px; color: var(--fg); }
.brand b { font: 800 14px/1.1 var(--f-display); text-transform: uppercase; letter-spacing: .04em; text-align: left; }
.brand small { display: block; font: 500 11px/1.2 var(--f-body); color: var(--muted); text-transform: none; letter-spacing: 0; }
.top-nav { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }
.tab { border: 1px solid transparent; background: none; padding: 6px 12px; border-radius: 8px; font-weight: 600; font-size: 13px; color: var(--muted); }
.tab[aria-current="true"] { color: var(--fg); background: var(--surface-2); border-color: var(--line); }

.wrap { max-width: 1240px; margin: 0 auto; padding-inline: 16px; padding-block: 24px 64px; }

/* home */
.home-head { display: grid; gap: 10px; margin-bottom: 26px; max-width: 760px; }
.home-head h1 { font-size: clamp(26px, 4.2vw, 40px); font-weight: 800; text-transform: uppercase; line-height: 1.1; }
.home-head h1 span { color: var(--accent); }
.course-meta { display: flex; gap: 18px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.course-meta b { color: var(--fg); font-variant-numeric: tabular-nums; }
.module { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.module-h { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 20px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.module-h h2 { font-size: 17px; font-weight: 700; }
.bar { height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; min-width: 140px; flex: 0 1 220px; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 3px; transition: width .4s; }
.lesson-row { display: grid; grid-template-columns: 44px 1fr auto; gap: 14px; align-items: center; padding: 14px 20px; border-top: 1px solid var(--line); width: 100%; text-align: left; background: none; border-left: 0; border-right: 0; border-bottom: 0; }
.lesson-row:first-of-type { border-top: 0; }
.lesson-row:not(:disabled):hover { background: var(--surface-2); }
.lesson-row:disabled { cursor: default; }
.lesson-row:disabled .l-title { color: var(--muted); }
.l-num { width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center; font: 800 16px var(--f-display); background: var(--surface-2); color: var(--muted); }
.lesson-row.st-open .l-num { background: var(--accent-soft); color: var(--accent); }
.lesson-row.st-done .l-num { background: var(--ok-soft); color: var(--ok); }
.l-title { font-weight: 700; font-size: 15px; }
.l-sub { font-size: 12.5px; color: var(--muted); }
.pill { font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 99px; white-space: nowrap; text-transform: uppercase; letter-spacing: .05em; }
.pill.open { background: var(--accent); color: var(--accent-ink); }
.pill.done { background: var(--ok-soft); color: var(--ok); }
.pill.lock { background: var(--surface-2); color: var(--muted); }
.pill.prog { background: var(--accent-soft); color: var(--accent); }
.home-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 20px; align-items: start; }
.side-card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; display: grid; gap: 10px; }
.side-card h3 { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.side-card ul { margin: 0; padding-left: 18px; display: grid; gap: 6px; font-size: 13.5px; color: var(--muted); }
.demo-link { background: none; border: 0; padding: 0; color: var(--muted); font-size: 12.5px; text-decoration: underline; text-align: left; }

/* lesson */
.lesson { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 32px; align-items: start; }
.rail { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 74px); display: grid; gap: 4px; }
.rail-back { background: none; border: 0; padding: 0 0 10px; color: var(--muted); font-size: 13px; text-align: left; }
.rail h2 { font-size: 15px; font-weight: 800; text-transform: uppercase; margin-bottom: 8px; }
.rail-step { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: center; background: none; border: 0; text-align: left; padding: 7px 10px; border-radius: 8px; font-size: 13.5px; color: var(--muted); }
.rail-step:disabled { opacity: .45; cursor: default; }
.rail-step .dot { width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--line); display: grid; place-items: center; font-size: 11px; font-weight: 700; font-variant-numeric: tabular-nums; }
.rail-step.solved .dot { border-color: var(--ok); background: var(--ok); color: var(--bg); }
.rail-step.cur { background: var(--surface-2); color: var(--fg); font-weight: 600; }
.rail-step.cur .dot { border-color: var(--accent); color: var(--accent); }
.rail-step.solved.cur .dot { color: var(--bg); }
.kind { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); display: block; }

.stage { min-width: 0; max-width: 760px; }
.segs { display: flex; gap: 4px; margin-bottom: 22px; }
.segs i { flex: 1; height: 4px; border-radius: 2px; background: var(--surface-2); }
.segs i.on { background: var(--accent); }
.segs i.ok { background: var(--ok); }
.step-h { display: grid; gap: 6px; margin-bottom: 18px; }
.step-h h1 { font-size: clamp(22px, 3.4vw, 30px); font-weight: 800; line-height: 1.15; }
.prose { display: grid; gap: 14px; }
.prose p { margin: 0; max-width: 66ch; }
.prose b { font-weight: 700; }
figure { margin: 0; display: grid; gap: 8px; }
figure img { border-radius: 10px; border: 1px solid var(--line); width: 100%; height: auto; display: block; }
figcaption { font-size: 12.5px; color: var(--muted); }
.callout { border-radius: 10px; padding: 14px 16px; background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); display: grid; gap: 4px; }
.callout.rule { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.callout.rule .eyebrow { color: var(--warn); }
.callout p { margin: 0; }
.big-rule { font: 800 18px/1.3 var(--f-display); }
.tbl { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
.tbl table { border-collapse: collapse; width: 100%; font-size: 14px; }
.tbl th, .tbl td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--line); }
.tbl tr:last-child td { border-bottom: 0; }
.tbl th { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); background: var(--surface-2); }
.mono { font-family: var(--f-mono); }

/* tasks */
.task { margin-top: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px; display: grid; gap: 14px; }
.task-q { font-weight: 600; font-size: 15.5px; }
.opts { display: grid; gap: 8px; }
.opt { display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start; text-align: left; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); }
.opt:hover:not(:disabled) { border-color: var(--accent); }
.opt:disabled { cursor: default; }
.opt .k { width: 28px; height: 28px; border-radius: 7px; display: grid; place-items: center; background: var(--surface-2); font-weight: 800; font-size: 13px; }
.opt.right { border-color: var(--ok); background: var(--ok-soft); }
.opt.right .k { background: var(--ok); color: var(--bg); }
.opt.wrong { border-color: var(--bad); background: var(--bad-soft); }
.opt.wrong .k { background: var(--bad); color: var(--bg); }
.fb { border-radius: 10px; padding: 12px 14px; font-size: 14px; display: grid; gap: 8px; }
.fb.ok { background: var(--ok-soft); border-left: 3px solid var(--ok); }
.fb.bad { background: var(--bad-soft); border-left: 3px solid var(--bad); }
.fb b.t { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.fb.ok b.t { color: var(--ok); } .fb.bad b.t { color: var(--bad); }
.fb button { justify-self: start; }
.inp-row { display: grid; grid-template-columns: minmax(0, 1fr) 120px 28px; gap: 10px; align-items: center; padding: 10px 0; border-top: 1px solid var(--line); }
.inp-row:first-child { border-top: 0; }
.inp-row input { width: 100%; padding: 9px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); font: 600 15px var(--f-mono); color: var(--fg); }
.inp-row input.ok { border-color: var(--ok); }
.inp-row input.bad { border-color: var(--bad); }
.inp-row .mark { font-weight: 800; text-align: center; }
.inp-note { grid-column: 1 / -1; font-size: 13px; color: var(--bad); }
.btn { border: 0; border-radius: 10px; padding: 11px 18px; font-weight: 700; font-size: 14px; background: var(--accent); color: var(--accent-ink); }
.btn:disabled { background: var(--surface-2); color: var(--muted); cursor: not-allowed; }
.btn.ghost { background: var(--surface-2); color: var(--fg); }
.btn.small { padding: 7px 12px; font-size: 13px; }
.gap-line { font: 600 18px/2.4 var(--f-display); }
.slot { display: inline-block; min-width: 110px; border-bottom: 2px solid var(--accent); text-align: center; padding: 0 8px; margin: 0 4px; line-height: 1.5; color: var(--accent); }
.slot.ok { border-color: var(--ok); color: var(--ok); }
.slot.bad { border-color: var(--bad); color: var(--bad); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--line); background: var(--bg); border-radius: 99px; padding: 7px 14px; font-weight: 600; font-size: 14px; }
.chip:disabled { opacity: .35; cursor: default; }

/* step footer */
.step-nav { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.step-nav .hint { font-size: 13px; color: var(--muted); }

/* multimeter */
.bench { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 18px; align-items: start; }
.meter { background: #1c1c1c; border-radius: 18px; padding: 14px; border: 3px solid #ea0102; display: grid; gap: 10px; }
.lcd { background: var(--lcd-bg); color: var(--lcd-fg); border-radius: 8px; padding: 8px 12px 6px; display: grid; grid-template-columns: auto 1fr; align-items: end; min-height: 84px; box-shadow: inset 0 2px 6px rgba(0,0,0,.25); }
.lcd .ann { font: 700 11px var(--f-mono); align-self: start; }
.lcd .val { font: 700 40px/1 var(--f-mono); text-align: right; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.lcd .unit { grid-column: 2; text-align: right; font: 700 12px var(--f-mono); }
.meter-label { font: 700 10px var(--f-mono); color: #9fb3b5; text-transform: uppercase; letter-spacing: .1em; text-align: center; }
.lamp { width: 70px; height: 70px; border-radius: 50%; border: 3px solid var(--line); margin: 4px auto 0; display: grid; place-items: center; font-size: 11px; font-weight: 700; color: var(--muted); background: var(--lamp-off); transition: background .3s, box-shadow .3s; }
.lamp.on { background: #ffd866; color: #4a3a00; box-shadow: 0 0 28px 6px rgba(255,216,102,.55); border-color: #ffd866; }
.ctrls { display: grid; gap: 14px; }
.ctrl { display: grid; gap: 6px; }
.ctrl > span { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg button { border: 1px solid var(--line); background: var(--bg); border-radius: 8px; padding: 7px 12px; font: 600 14px var(--f-mono); }
.seg button.txt { font-family: var(--f-body); font-size: 13px; }
.seg button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.sim-note { font-size: 14px; min-height: 48px; }
.boom { display: grid; gap: 8px; }

/* circuit */
.circuit { width: 100%; height: auto; display: block; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; }
.circuit .w { stroke: var(--fg); stroke-width: 3; fill: none; stroke-linecap: round; }
.circuit .dash { stroke: var(--muted); stroke-width: 2; stroke-dasharray: 6 6; fill: none; }
.circuit text { fill: var(--fg); font: 700 15px var(--f-body); }
.circuit .lbl { fill: var(--muted); font: 600 12px var(--f-body); }
.circuit .lampc { fill: var(--surface); stroke: var(--fg); stroke-width: 3; }
.spot { cursor: pointer; }
.spot circle { fill: var(--surface); stroke: var(--accent); stroke-width: 3; transition: fill .2s; }
.spot text { fill: var(--accent); font: 800 15px var(--f-display); }
.spot:hover circle, .spot:focus circle { fill: var(--accent-soft); }
.spot.right circle { fill: var(--ok); stroke: var(--ok); } .spot.right text { fill: var(--bg); }
.spot.wrong circle { fill: var(--bad); stroke: var(--bad); } .spot.wrong text { fill: var(--bg); }
.spot:focus { outline: none; }

/* finish */
.finish { display: grid; gap: 20px; }
.finish-hero { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 24px; display: grid; gap: 10px; }
.finish-hero h1 { font-size: clamp(24px, 3.6vw, 34px); font-weight: 800; text-transform: uppercase; }
.stats { display: flex; gap: 28px; flex-wrap: wrap; }
.stats div { display: grid; }
.stats b { font: 800 26px var(--f-display); font-variant-numeric: tabular-nums; color: var(--accent); }
.stats span { font-size: 12px; color: var(--muted); }
.checklist { display: grid; gap: 8px; }
.checklist label { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; padding: 10px 12px; border-radius: 10px; background: var(--bg); border: 1px solid var(--line); font-size: 14px; cursor: pointer; }
.checklist input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--accent); }
.upload { border: 2px dashed var(--line); border-radius: 12px; padding: 18px; display: grid; gap: 8px; justify-items: start; }
.upload label.btn { cursor: pointer; }
.upload input { position: absolute; width: 1px; height: 1px; opacity: 0; }

/* teacher */
.t-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 18px 0 22px; }
.tile { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; display: grid; gap: 2px; }
.tile b { font: 800 26px var(--f-display); font-variant-numeric: tabular-nums; }
.tile span { font-size: 12.5px; color: var(--muted); }
.t-cols { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 18px; align-items: start; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px; display: grid; gap: 12px; min-width: 0; }
.panel h2 { font-size: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.hbar { display: grid; grid-template-columns: minmax(0, 1fr) 140px 44px; gap: 10px; align-items: center; font-size: 13.5px; }
.hbar .track { height: 8px; background: var(--surface-2); border-radius: 4px; overflow: hidden; }
.hbar .track i { display: block; height: 100%; border-radius: 4px; background: var(--ok); }
.hbar.warnrow .track i { background: var(--warn); }
.hbar.badrow .track i { background: var(--bad); }
.hbar b { text-align: right; font-variant-numeric: tabular-nums; }
.example { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--warn); background: var(--warn-soft); padding: 3px 8px; border-radius: 6px; justify-self: start; }
.queue-item { display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; padding: 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; font-size: 13.5px; }
.queue-item .acts { display: flex; gap: 6px; grid-column: 1 / -1; }

.mob-steps { display: none; }

@media (max-width: 900px) {
  .lesson { grid-template-columns: 1fr; }
  .rail { display: none; }
  .mob-steps { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
  .mob-steps button { background: none; border: 0; padding: 0; color: var(--muted); font-size: 13px; }
  .home-grid, .t-cols { grid-template-columns: 1fr; }
  .t-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .bench { grid-template-columns: 1fr; }
  .meter { max-width: 260px; }
  .inp-row { grid-template-columns: minmax(0, 1fr) 96px 22px; }
  .hbar { grid-template-columns: minmax(0, 1fr) 80px 40px; }
  .brand small { display: none; }
  .lesson-row { grid-template-columns: 40px 1fr; }
  .lesson-row .pill { grid-column: 2; justify-self: start; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* ---------- платформа: ссылки, формы, админка ---------- */
a { color: var(--accent); }
a.tab, a.brand, a.btn, a.lesson-row, a.rail-back, .crumbs a { text-decoration: none; }
a.brand { color: var(--fg); }
a.btn { display: inline-block; }
a.lesson-row { color: inherit; }
.lesson-row.st-lock, .lesson-row.st-soon { cursor: default; }
.lesson-row.st-lock .l-title, .lesson-row.st-soon .l-title { color: var(--muted); }
.lesson-row.st-draft .l-num { background: var(--warn-soft); color: var(--warn); }
.pill.draft { background: var(--warn-soft); color: var(--warn); }
.top-nav form { margin: 0; }
.who { font-size: 12.5px; color: var(--muted); padding: 6px 4px; }
.crumbs { font-size: 13px; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--fg); }

.auth { max-width: 420px; margin: 6vh auto 0; display: grid; gap: 18px; }
.auth h1 { font-size: 24px; font-weight: 800; text-transform: uppercase; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; display: grid; gap: 14px; min-width: 0; }
.card h2 { font-size: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.field { display: grid; gap: 6px; }
.field > span { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.field small { color: var(--muted); font-size: 12.5px; }
input[type=text], input[type=password], input[type=number], input[type=tel], select, textarea {
  width: 100%; padding: 10px 12px; border-radius: 9px; border: 1px solid var(--line); background: var(--bg);
  color: var(--fg); font: 500 15px var(--f-body); }
textarea { min-height: 90px; resize: vertical; }
input[type=file] { font: inherit; color: var(--muted); max-width: 100%; }
.check { display: flex; gap: 10px; align-items: center; font-size: 14px; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); }
.msg { border-radius: 10px; padding: 12px 14px; font-size: 14px; }
.msg.ok { background: var(--ok-soft); border-left: 3px solid var(--ok); }
.msg.bad { background: var(--bad-soft); border-left: 3px solid var(--bad); white-space: pre-line; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.row > form { margin: 0; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.btn.danger { background: var(--bad-soft); color: var(--bad); }
.btn.link { background: none; color: var(--muted); padding: 4px 6px; text-decoration: underline; font-weight: 600; }
.iconbtn { border: 1px solid var(--line); background: var(--bg); border-radius: 7px; width: 30px; height: 30px; display: inline-grid; place-items: center; font-size: 13px; color: var(--muted); }
.iconbtn:hover { color: var(--fg); border-color: var(--accent); }

.adm-head { display: flex; justify-content: space-between; align-items: end; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.adm-head h1 { font-size: clamp(22px, 3.4vw, 30px); font-weight: 800; text-transform: uppercase; }
.adm-cols { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 20px; align-items: start; }
.list { display: grid; }
.list-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 12px 0; border-top: 1px solid var(--line); }
.list-row:first-child { border-top: 0; }
.list-row .t { font-weight: 700; }
.list-row .s { font-size: 12.5px; color: var(--muted); }
.mod-block { border: 1px solid var(--line); border-radius: 12px; background: var(--bg); padding: 14px 16px; display: grid; gap: 10px; }
.mod-block summary { cursor: pointer; font-size: 13px; color: var(--muted); }
.tbl td .s { font-size: 12.5px; color: var(--muted); }
.copy { display: flex; gap: 8px; }
.copy input { font-family: var(--f-mono); font-size: 13px; }
.steps-list { counter-reset: s; display: grid; gap: 6px; margin: 0; padding: 0; list-style: none; }
.steps-list li { display: grid; grid-template-columns: 28px minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 8px 10px; border-radius: 9px; background: var(--bg); border: 1px solid var(--line); font-size: 14px; }
.steps-list li::before { counter-increment: s; content: counter(s); font: 700 12px var(--f-mono); color: var(--muted); }
.preview-bar { background: var(--warn-soft); border: 1px solid color-mix(in srgb, var(--warn) 40%, transparent); color: var(--fg); border-radius: 10px; padding: 10px 14px; font-size: 13.5px; display: flex; gap: 12px; justify-content: space-between; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.course-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.course-card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; display: grid; gap: 10px; color: inherit; text-decoration: none; }
.course-card:hover { border-color: var(--accent); }
.course-card h2 { font-size: 19px; font-weight: 800; text-transform: uppercase; }
.video-box { border-radius: 10px; overflow: hidden; border: 1px solid var(--line); background: #000; }
.video-box video { display: block; width: 100%; height: auto; }

@media (max-width: 900px) { .adm-cols { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .grid2 { grid-template-columns: 1fr; } }

.card > * { min-width: 0; }
input[type=file] { width: 100%; }

.figs { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.figs figcaption b { color: var(--fg); }

/* ================= EL'Auto: оформление по elautogroup.ru ================= */
body { font-size: 15.5px; }
h1, h2, h3, .step-h h1, .home-head h1, .adm-head h1, .auth h1, .finish-hero h1 { font-weight: 600; letter-spacing: -.005em; }
.home-head h1, .adm-head h1, .auth h1, .finish-hero h1, .course-card h2, .rail h2 { text-transform: none; }
.eyebrow { color: var(--fg); font-weight: 600; letter-spacing: .06em; font-size: 12px; }
.eyebrow::before { content: ""; display: inline-block; width: 18px; height: 3px; background: var(--accent); vertical-align: middle; margin-right: 8px; border-radius: 1px; }
.kind { color: var(--accent); }

/* шапка: чёрная, логотип, капс-меню, красная кнопка */
.top { background: #000; border-bottom: 1px solid #1f1f1f; color: #fff; }
.top-in { padding: 14px 16px; }
.brand { color: #fff !important; gap: 12px; }
.brand .ea-logo { width: auto; height: 44px; display: block; }
.brand b { font: 600 11px/1.2 var(--f-display); letter-spacing: .08em; color: #fff; border-left: 1px solid #333; padding-left: 12px; }
.brand small { color: #9a9a9a; font-weight: 500; letter-spacing: 0; text-transform: none; }
.top-nav { gap: 6px; align-items: center; }
.tab { color: #d0d0d0; text-transform: uppercase; font-size: 12.5px; font-weight: 600; letter-spacing: .03em; border-radius: 4px; padding: 8px 12px; }
.tab:hover { color: #fff; }
.tab[aria-current="true"] { color: #fff; background: none; border-color: transparent; box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }
.tab.cta { background: var(--accent); color: #fff; border-color: var(--accent); }
.tab.cta[aria-current="true"] { box-shadow: none; border-radius: 4px; }

/* кнопки: капс, 4px, красные; второстепенные — красная рамка */
.btn { border-radius: 4px; text-transform: uppercase; font-weight: 600; font-size: 13px; letter-spacing: .03em; padding: 14px 26px; transition: background .2s, box-shadow .2s; }
.btn:not(:disabled):not(.ghost):not(.link):not(.danger):hover { background: #ff1a1b; box-shadow: 0 6px 22px rgba(234,1,2,.35); }
.btn.small { padding: 9px 14px; font-size: 12px; }
.btn.ghost { background: transparent; color: var(--fg); box-shadow: inset 0 0 0 1px var(--accent); }
.btn.ghost:hover { background: var(--accent-soft); }
.btn.link { text-transform: none; letter-spacing: 0; }

/* карточки: тёмные, почти прямые углы, красная полоска сверху при наведении */
.module, .side-card, .card, .panel, .task, .finish-hero, .tile, .course-card { border-radius: 6px; border-color: var(--line); }
.course-card { position: relative; overflow: hidden; padding: 24px; background: linear-gradient(160deg, #1b1b1b, #121212); }
.course-card::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--accent); }
.course-card:hover { border-color: var(--accent); transform: translateY(-2px); transition: transform .2s; }
.course-card h2 { font-weight: 600; font-size: 21px; }
.module-h { background: #111; }
.lesson-row { padding: 15px 20px; }
.l-num { border-radius: 4px; font-weight: 600; }
.lesson-row.st-open .l-num { background: var(--accent); color: #fff; }
.pill { border-radius: 3px; font-weight: 600; }
.pill.open { background: var(--accent); color: #fff; }
.bar, .bar i, .segs i { border-radius: 0; }
.opt, .opt .k, .chip, .seg button, .iconbtn, .fb, .msg, .callout, .tbl, figure img, .video-box, .upload, .checklist label, .queue-item, .steps-list li, .mod-block, .preview-bar { border-radius: 4px; }
.chip { border-radius: 3px; }
input[type=text], input[type=password], input[type=number], input[type=tel], select, textarea, .inp-row input { border-radius: 4px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); outline: none; }

/* герой-блок над курсами: тёмный, с косой красной гранью, как на elautogroup.ru */
.home-head { max-width: none; position: relative; overflow: hidden; padding: 34px 30px 30px; margin: -24px -16px 26px;
  background: radial-gradient(120% 140% at 85% 20%, #2a2a2a 0%, #0f0f0f 55%, #000 100%); border-bottom: 1px solid #1f1f1f; color: #fff; }
.home-head::after { content: ""; position: absolute; right: -60px; top: 0; bottom: 0; width: 280px; background: linear-gradient(115deg, transparent 0 46%, rgba(234,1,2,.85) 46% 49%, transparent 49% 60%, rgba(255,255,255,.05) 60%); pointer-events: none; }
.home-head > * { position: relative; z-index: 1; max-width: 760px; }
.home-head h1 { font-size: clamp(28px, 4.4vw, 44px); line-height: 1.15; color: #fff; }
.home-head h1 span { color: var(--accent); }
.home-head .muted, .home-head .course-meta { color: #c9c9c9; }
.home-head .course-meta b { color: #fff; }
.home-head a { color: var(--yellow); }

/* жёлтая плашка-подсказка (как жёлтые блоки сайта) */
.callout.rule { background: var(--yellow); color: var(--yellow-ink); border: 0; }
.callout.rule .eyebrow { color: var(--yellow-ink); }
.callout.rule .eyebrow::before { background: var(--yellow-ink); }
.side-card { border-top: 3px solid var(--yellow); }
.stats b { color: var(--accent); font-weight: 600; }

/* шаги урока */
.rail-step { border-radius: 4px; }
.rail-step.cur { background: var(--surface-2); box-shadow: inset 3px 0 0 var(--accent); }
.rail-step.cur .dot { border-color: var(--accent); color: var(--accent); }

/* подвал */
.ea-foot { background: #000; color: #8a8a8a; border-top: 1px solid #1f1f1f; font-size: 12.5px; }
.ea-foot .in { max-width: 1240px; margin: 0 auto; padding: 18px 16px; display: flex; gap: 16px; justify-content: space-between; flex-wrap: wrap; }
.ea-foot b { color: #fff; font-weight: 600; }

@media (max-width: 560px) {
  .brand .ea-logo { height: 36px; }
  .brand b { display: none; }
  .home-head { padding: 26px 16px 22px; }
  .home-head::after { width: 140px; opacity: .6; }
  .tab { padding: 7px 8px; font-size: 11.5px; }
}
/* подвал всегда внизу */
body { display: flex; flex-direction: column; min-height: 100vh; }
body > .wrap { flex: 1 0 auto; width: 100%; }

/* телефон: меню второй строкой, без горизонтальной прокрутки */
@media (max-width: 700px) {
  .top-in { flex-wrap: wrap; row-gap: 6px; padding: 10px 16px 6px; }
  .top-nav { margin-left: 0; width: 100%; flex-wrap: nowrap; overflow-x: auto; gap: 2px; scrollbar-width: none; }
  .top-nav .tab { white-space: nowrap; }
  .top-nav .tab.cta { margin-left: auto; }
}
html, body { overflow-x: clip; }