/* КИДКОД · домашние задания по веб-дизайну (стиль общий с домашкой по Python)
 * Все цвета бренда собраны в токенах ниже — чтобы поменять стиль, достаточно поправить их.
 */
:root {
  --brand: #6d4aff;
  --brand-2: #ff4d8d;
  --accent: #ff9f1c;
  --sun: #ffd23f;
  --mint: #19b8a6;
  --ok: #16a34a;
  --bad: #e11d48;

  --bg: #f6f4ff;
  --bg-soft: #efeaff;
  --surface: #ffffff;
  --surface-2: #f9f8ff;
  --ink: #1f1b3d;
  --ink-2: #4b4770;
  --muted: #77739a;
  --line: #e4e0f5;
  --shadow: 0 1px 2px rgba(31, 27, 61, .06), 0 8px 24px rgba(31, 27, 61, .08);
  --shadow-lg: 0 2px 4px rgba(31, 27, 61, .06), 0 18px 48px rgba(31, 27, 61, .14);

  --code-bg: #1b1838;
  --code-ink: #ece9ff;
  --code-muted: #8f8ab8;
  --code-line: #2c2856;

  --radius: 20px;
  --radius-sm: 12px;
  --font: 'Nunito', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'Cascadia Code', Consolas, monospace;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #110f24;
    --bg-soft: #1a1735;
    --surface: #1b1836;
    --surface-2: #221e42;
    --ink: #f1efff;
    --ink-2: #c9c5ea;
    --muted: #9893c2;
    --line: #2f2a57;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    --shadow-lg: 0 2px 4px rgba(0, 0, 0, .3), 0 18px 48px rgba(0, 0, 0, .4);
    --code-bg: #0c0a1c;
    --code-line: #25214a;
    --brand: #8b70ff;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #110f24;
  --bg-soft: #1a1735;
  --surface: #1b1836;
  --surface-2: #221e42;
  --ink: #f1efff;
  --ink-2: #c9c5ea;
  --muted: #9893c2;
  --line: #2f2a57;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  --shadow-lg: 0 2px 4px rgba(0, 0, 0, .3), 0 18px 48px rgba(0, 0, 0, .4);
  --code-bg: #0c0a1c;
  --code-line: #25214a;
  --brand: #8b70ff;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; }
a { color: var(--brand); text-underline-offset: 3px; }
a:hover { color: var(--brand-2); }
code, pre, kbd { font-family: var(--mono); font-size: .9em; }
:not(pre) > code {
  background: var(--bg-soft);
  color: var(--ink);
  padding: .1em .4em;
  border-radius: 6px;
  overflow-wrap: anywhere;
}
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; font-weight: 900; letter-spacing: -.01em; }
:focus-visible { outline: 3px solid var(--sun); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- шапка ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; gap: 16px; min-height: 64px; }
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--ink); font-weight: 900; font-size: 20px; letter-spacing: .02em;
}
.logo:hover { color: var(--ink); }
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; font-family: var(--mono); font-size: 15px; font-weight: 800;
  box-shadow: 0 6px 16px color-mix(in srgb, var(--brand) 40%, transparent);
}
.logo small { display: block; font-size: 12px; font-weight: 700; color: var(--muted); letter-spacing: 0; line-height: 1.1; }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a {
  text-decoration: none; color: var(--ink-2); font-weight: 800; font-size: 15px;
  padding: 8px 12px; border-radius: 999px;
}
.nav a:hover { background: var(--bg-soft); color: var(--ink); }
.icon-btn {
  width: 40px; height: 40px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink); cursor: pointer; font-size: 18px;
  display: inline-grid; place-items: center;
}
.icon-btn:hover { border-color: var(--brand); }
.theme-btn .sun { display: none; }
:root[data-theme="dark"] .theme-btn .sun { display: inline; }
:root[data-theme="dark"] .theme-btn .moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-btn .sun { display: inline; }
  :root:not([data-theme="light"]) .theme-btn .moon { display: none; }
}
@media (max-width: 640px) {
  .nav .hide-sm { display: none; }
  .logo small { display: none; }
}

/* ---------- кнопки ---------- */
.btn {
  --b: var(--brand);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 800; font-size: 15px; line-height: 1;
  padding: 11px 18px; border-radius: 999px; border: 0; cursor: pointer;
  background: var(--b); color: #fff; text-decoration: none;
  box-shadow: 0 4px 0 color-mix(in srgb, var(--b) 60%, #000);
  transition: transform .08s ease, box-shadow .08s ease, filter .15s;
}
.btn:hover { filter: brightness(1.07); color: #fff; }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 color-mix(in srgb, var(--b) 60%, #000); }
.btn:disabled { opacity: .55; cursor: progress; transform: none; }
.btn-run { --b: var(--mint); }
.btn-check { --b: var(--brand); }
.btn-ghost {
  background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--line);
}
.btn-ghost:hover { color: var(--ink); box-shadow: inset 0 0 0 2px var(--brand); }
.btn-ghost:active { transform: none; box-shadow: inset 0 0 0 2px var(--brand); }
.btn-icon { width: 40px; padding: 11px 0; font-size: 18px; }
.btn-lg { font-size: 17px; padding: 14px 24px; }

/* ---------- главная ---------- */
.hero { padding: clamp(32px, 7vw, 80px) 0 32px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } .hero-art { display: none; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 800; font-size: 14px; color: var(--brand);
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px;
}
.hero h1 { font-size: clamp(34px, 6vw, 60px); margin: 18px 0 16px; }
.hero h1 .hl {
  background: linear-gradient(90deg, var(--brand), var(--brand-2) 60%, var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { font-size: clamp(17px, 2vw, 20px); color: var(--ink-2); max-width: 36em; margin: 0 0 24px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-art {
  background: var(--code-bg); color: var(--code-ink); border-radius: 24px; padding: 22px 24px;
  font-family: var(--mono); font-size: 15px; line-height: 1.7; box-shadow: var(--shadow-lg);
  transform: rotate(1.5deg); position: relative;
}
.hero-art::before {
  content: ''; display: block; width: 52px; height: 12px; margin-bottom: 14px;
  background: radial-gradient(circle, #ff5f57 5px, transparent 6px) 0 0 / 18px 12px repeat-x;
}
.hero-art .k { color: #ff79c6; } .hero-art .s { color: #ffd23f; } .hero-art .f { color: #7ee6d9; } .hero-art .c { color: var(--code-muted); }
.blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .35; z-index: -1; }
.blob.b1 { width: 380px; height: 380px; background: var(--brand); top: -120px; right: -80px; }
.blob.b2 { width: 280px; height: 280px; background: var(--brand-2); bottom: -120px; left: -60px; opacity: .2; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 8px 0 40px; }
.feature {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px;
}
.feature .ico { font-size: 26px; }
.feature h3 { font-size: 18px; margin: 8px 0 4px; }
.feature p { margin: 0; color: var(--ink-2); font-size: 15px; }

.section-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px; margin: 40px 0 18px; }
.section-head h2 { font-size: clamp(26px, 3.5vw, 36px); margin: 0; }
.section-head p { margin: 4px 0 0; color: var(--ink-2); }
.lesson-search {
  font: inherit; padding: 10px 16px; border-radius: 999px; border: 2px solid var(--line);
  background: var(--surface); color: var(--ink); min-width: min(280px, 100%);
}
.lesson-search:focus { border-color: var(--brand); outline: none; }

.lesson-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.lesson-card {
  --c: var(--brand);
  position: relative; display: flex; flex-direction: column; gap: 8px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 18px 16px; text-decoration: none; color: var(--ink);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s;
}
.lesson-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--c); color: var(--ink); }
.lesson-card .num {
  min-width: 44px; width: max-content; padding: 0 10px; height: 44px; white-space: nowrap; border-radius: 14px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--c) 14%, transparent); color: var(--c);
  font-weight: 900; font-size: 17px;
}
.lesson-card h3 { font-size: 18px; margin: 4px 0 0; }
.lesson-card p { margin: 0; color: var(--muted); font-size: 14px; flex: 1; }
.lesson-card .meta { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 800; color: var(--muted); }
.lesson-card .meta .bar { flex: 1; }
.lesson-card.is-complete .num::after { content: '✓'; }
.lesson-card.is-complete .num { background: var(--ok); color: #fff; font-size: 0; }
.lesson-card.is-complete .num::after { font-size: 20px; }
.lesson-card .tag {
  position: absolute; top: 16px; right: 16px; font-size: 12px; font-weight: 800;
  padding: 3px 10px; border-radius: 999px; background: var(--sun); color: #3a2c00;
}
.c1 { --c: #6d4aff; } .c2 { --c: #ff4d8d; } .c3 { --c: #ff9f1c; } .c4 { --c: #19b8a6; } .c5 { --c: #3b82f6; } .c6 { --c: #d946ef; }

.bar { height: 8px; border-radius: 99px; background: var(--line); overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--mint), var(--brand)); transition: width .4s ease; }

.progress-card {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; margin-top: 24px; max-width: 520px;
}
.progress-card .bar { flex: 1; min-width: 120px; height: 12px; }
.progress-card b { font-weight: 900; }
.link-btn { background: none; border: 0; color: var(--muted); font: inherit; font-size: 13px; cursor: pointer; text-decoration: underline; padding: 0; }

/* ---------- страница урока ---------- */
.lesson-hero { padding: 36px 0 12px; }
.crumbs { font-size: 14px; font-weight: 700; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--brand); }
.lesson-hero h1 { font-size: clamp(30px, 5vw, 48px); margin: 12px 0 10px; }
.lesson-hero .lead { font-size: 18px; color: var(--ink-2); max-width: 44em; margin: 0; }
.lesson-hero .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 800;
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; color: var(--ink-2);
}

.lesson-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 32px; align-items: start; padding-bottom: 48px; }
@media (max-width: 980px) { .lesson-layout { grid-template-columns: minmax(0, 1fr); } .side { position: static !important; } .toc { display: none; } }
.side { position: sticky; top: 84px; display: flex; flex-direction: column; gap: 14px; }
.side-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.side-card h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 10px; }
.side-card .bar { margin: 6px 0; }
.side-card .cnt { font-weight: 900; }
.toc { display: flex; flex-direction: column; gap: 2px; max-height: calc(100vh - 300px); overflow: auto; }
.toc a {
  display: flex; gap: 8px; align-items: baseline; text-decoration: none; color: var(--ink-2);
  font-size: 14px; font-weight: 700; padding: 6px 8px; border-radius: 8px; line-height: 1.3;
}
.toc a:hover { background: var(--bg-soft); color: var(--ink); }
.toc a.is-active { background: var(--bg-soft); color: var(--brand); }
.toc a .n { flex: none; width: 22px; height: 22px; border-radius: 7px; display: inline-grid; place-items: center; font-size: 12px; background: var(--bg-soft); color: var(--muted); }
.toc a.is-done .n { background: var(--ok); color: #fff; }
.toc a.sec { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding-top: 10px; }

.content > * + * { margin-top: 20px; }
.content h2.sec-title { font-size: clamp(24px, 3vw, 30px); margin-top: 44px; display: flex; align-items: center; gap: 10px; }
.content h2.sec-title:first-child { margin-top: 0; }
.content h2.sec-title .emoji { font-size: .9em; }

.note {
  background: var(--surface); border: 1px solid var(--line); border-left: 6px solid var(--accent);
  border-radius: var(--radius-sm); padding: 14px 18px; color: var(--ink-2);
}
.note.info { border-left-color: var(--brand); }
.note p { margin: 0; }
.note p + p { margin-top: 8px; }

/* ---------- задание ---------- */
.task {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(16px, 3vw, 26px); box-shadow: var(--shadow); position: relative;
  transition: border-color .3s, box-shadow .3s;
}
.task.is-done { border-color: color-mix(in srgb, var(--ok) 55%, var(--line)); }
.task.just-solved { animation: solved 1.2s ease; }
@keyframes solved {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--ok) 60%, transparent); }
  100% { box-shadow: 0 0 0 18px transparent; }
}
.task-head { display: flex; gap: 14px; align-items: flex-start; }
.task-num {
  flex: none; width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center;
  font-weight: 900; font-size: 18px; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-2));
}
.task.is-done .task-num { background: var(--ok); }
.task-title { flex: 1; min-width: 0; }
.task-title h3 { font-size: clamp(19px, 2.4vw, 22px); margin: 0 0 6px; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge {
  font-size: 12px; font-weight: 800; padding: 3px 10px; border-radius: 999px;
  background: var(--bg-soft); color: var(--ink-2); white-space: nowrap;
}
.badge.lvl-1 { background: color-mix(in srgb, var(--mint) 18%, transparent); color: color-mix(in srgb, var(--mint) 70%, var(--ink)); }
.badge.lvl-2 { background: color-mix(in srgb, var(--accent) 20%, transparent); color: color-mix(in srgb, var(--accent) 60%, var(--ink)); }
.badge.lvl-3 { background: color-mix(in srgb, var(--brand-2) 18%, transparent); color: color-mix(in srgb, var(--brand-2) 70%, var(--ink)); }
.badge.new { background: var(--sun); color: #3a2c00; }
.badge.auto { background: color-mix(in srgb, var(--brand) 16%, transparent); color: var(--brand); }
.badge.local { background: color-mix(in srgb, #3b82f6 16%, transparent); color: #3b82f6; }

.task-body { margin-top: 14px; }
.task-body > * + * { margin-top: 12px; }
.task-body p { margin: 0; }
.task-body ul, .task-body ol { margin: 0; padding-left: 1.3em; }
.task-body li + li { margin-top: 4px; }
.task-body pre.sample, .content pre.sample {
  background: var(--surface-2); border: 1px dashed var(--line); border-radius: var(--radius-sm);
  padding: 12px 14px; margin: 0; overflow-x: auto; font-size: 14.5px; line-height: 1.55; color: var(--ink);
}
.sample-label { font-size: 13px; font-weight: 800; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: -6px !important; }
.expr-list { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; padding: 0 !important; }
.expr-list li { margin: 0 !important; }
.expr-list code {
  display: inline-block; font-size: 16px !important; padding: 8px 14px !important;
  border: 2px solid var(--brand-2); background: var(--surface) !important; border-radius: 12px !important;
}
.shots { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-start; }
.shots img { max-width: 100%; width: auto; }
.shots img, .task-body img.zoomable, .content img.zoomable {
  border-radius: var(--radius-sm); border: 1px solid var(--line); display: block; background: #fff; cursor: zoom-in;
}
.shots.single { flex-direction: column; }
.task-foot { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 16px; }
.done-btn {
  display: inline-flex; align-items: center; gap: 8px; font: inherit; font-weight: 800; font-size: 14px;
  padding: 8px 14px; border-radius: 999px; border: 2px solid var(--line); background: transparent; color: var(--ink-2); cursor: pointer;
}
.done-btn:hover { border-color: var(--ok); color: var(--ok); }
.done-btn .box { width: 18px; height: 18px; border-radius: 6px; border: 2px solid currentColor; display: inline-grid; place-items: center; font-size: 12px; }
.done-btn[aria-pressed="true"] { background: var(--ok); border-color: var(--ok); color: #fff; }
.done-btn[aria-pressed="true"] .box::after { content: '✓'; }

details.answer, details.hint {
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface-2);
}
details.answer > summary, details.hint > summary {
  cursor: pointer; font-weight: 800; padding: 10px 14px; list-style: none; display: flex; align-items: center; gap: 8px; color: var(--ink-2);
}
details.answer > summary::-webkit-details-marker, details.hint > summary::-webkit-details-marker { display: none; }
details.answer > summary::before { content: '🔑'; }
details.hint > summary::before { content: '💡'; }
details[open] > summary { border-bottom: 1px solid var(--line); }
details .inner { padding: 14px; }
details .inner > * + * { margin-top: 10px; }
details .inner img { border-radius: 10px; border: 1px solid var(--line); cursor: zoom-in; }
pre.code {
  background: var(--code-bg); color: var(--code-ink); border-radius: var(--radius-sm);
  padding: 14px 16px; margin: 0; overflow-x: auto; font-size: 14.5px; line-height: 1.6;
}

/* ---------- редактор + просмотр ---------- */
.web {
  border-radius: var(--radius-sm); overflow: hidden; background: var(--code-bg); color: var(--code-ink);
  border: 1px solid var(--code-line);
}
.web-bar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px; padding: 10px 12px;
  background: color-mix(in srgb, var(--code-bg) 80%, #000); border-bottom: 1px solid var(--code-line);
}
.web-title { font-weight: 800; font-size: 14px; color: var(--code-ink); display: inline-flex; align-items: center; gap: 8px; }
.web-title::before { content: ''; width: 10px; height: 10px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 3px color-mix(in srgb, var(--mint) 30%, transparent); }
.web[data-mode^="demo"] .web-title::before { background: var(--sun); box-shadow: 0 0 0 3px color-mix(in srgb, var(--sun) 30%, transparent); }
.web-status { font-size: 13px; color: var(--code-muted); }
.web.is-busy .web-status::before { content: ''; display: inline-block; width: 10px; height: 10px; margin-right: 6px; border-radius: 50%; border: 2px solid var(--code-muted); border-top-color: transparent; animation: spin .8s linear infinite; vertical-align: -1px; }
@keyframes spin { to { transform: rotate(360deg); } }
.web-btns { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.web .btn { font-size: 14px; padding: 9px 14px; }
.web .btn-ghost { color: var(--code-ink); box-shadow: inset 0 0 0 2px var(--code-line); }
.web .btn-ghost:hover { box-shadow: inset 0 0 0 2px var(--code-muted); color: #fff; }
.web .btn-icon { width: 36px; padding: 9px 0; }
.web-editor { position: relative; }
.web-textarea {
  display: block; width: 100%; min-height: 140px; resize: vertical; border: 0; margin: 0;
  padding: 14px 16px; background: var(--code-bg); color: var(--code-ink);
  font-family: var(--mono); font-size: 14px; line-height: 1.6; tab-size: 4; outline: none; white-space: pre;
}
.web-hint { font-size: 12px; color: var(--code-muted); padding: 4px 14px 8px; text-align: right; }
.web-view-bar {
  font-size: 12px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--code-muted);
  padding: 6px 14px; border-top: 1px solid var(--code-line); background: #0a0918;
}
.web-frame-host { background: #fff; resize: vertical; overflow: hidden; height: 340px; min-height: 120px; }
.web-frame-host iframe { display: block; width: 100%; height: 100%; border: 0; background: #fff; }
.web-frame-host iframe.is-hidden { display: none; }
.kk-test-frame { position: fixed; left: 0; top: 0; width: 1000px; height: 700px; border: 0; opacity: 0; pointer-events: none; z-index: -1; }
.web-console { background: #0a0918; }
.web-out {
  margin: 0; padding: 10px 16px 14px; max-height: 320px; overflow: auto; min-height: 44px;
  font-family: var(--mono); font-size: 14px; line-height: 1.55; color: #e8e6ff;
}
.web-line { display: flex; gap: 8px; align-items: baseline; white-space: pre-wrap; word-break: break-word; padding: 2px 0; }
.web-line + .web-line { border-top: 1px dashed #1f1b3d; }
.web-line .ico { flex: none; }
.web-line.k-err { color: #ff8fab; }
.web-line.k-warn { color: #ffc978; }
.web-line.k-alert .txt { color: #7ee6d9; }
.web-line.k-prompt .val { color: var(--sun); border-bottom: 2px solid var(--sun); padding: 0 4px; }
.web-line.k-sys, .web-line.k-info { color: var(--code-muted); }
.web-tests { border-top: 1px solid var(--code-line); padding: 14px 16px; background: #0a0918; }
.web-tests-head { font-weight: 800; display: flex; align-items: center; gap: 10px; }
.web-tests-head .big { font-size: 22px; }
.web-tests-head.ok { color: #6ee7a8; }
.web-tests-head.fail { color: #ffc978; }
.web-tests-list { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 6px; }
.web-tests-list li { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; font-size: 14px; }
.web-tests-list .mark { font-weight: 900; width: 16px; }
.web-tests-list .ok .mark { color: #6ee7a8; }
.web-tests-list .fail .mark { color: #ff8fab; }
.web-tests-list .lbl { font-family: var(--mono); font-size: 13.5px; white-space: pre-wrap; }
.web-tests-list pre.why { flex-basis: 100%; margin: 2px 0 4px 24px; padding: 8px 10px; background: #15122c; border-radius: 8px; color: #ffc9d6; white-space: pre-wrap; font-size: 13.5px; }

/* CodeMirror в фирменных цветах */
.web .CodeMirror {
  height: auto; min-height: 140px; background: var(--code-bg); color: var(--code-ink);
  font-family: var(--mono); font-size: 14px; line-height: 1.6; padding: 6px 0;
}
.web .CodeMirror-scroll { min-height: 140px; max-height: 560px; }
.web .CodeMirror-gutters { background: var(--code-bg); border-right: 1px solid var(--code-line); }
.web .CodeMirror-linenumber { color: #5d5890; }
.web .CodeMirror-cursor { border-left: 2px solid var(--sun); }
.web .CodeMirror-selected, .web .CodeMirror-focused .CodeMirror-selected { background: #3a3470; }
.web .CodeMirror-matchingbracket, .web .CodeMirror-matchingtag { color: var(--sun) !important; background: rgba(255, 210, 63, .12); }
.web .CodeMirror .cm-keyword { color: #ff79c6; font-weight: 600; }
.web .CodeMirror .cm-def { color: #7ee6d9; }
.web .CodeMirror .cm-builtin { color: #8be9fd; }
.web .CodeMirror .cm-string, .web .CodeMirror .cm-string-2 { color: #ffd23f; }
.web .CodeMirror .cm-number { color: #bd93f9; }
.web .CodeMirror .cm-comment { color: #8f8ab8; font-style: italic; }
.web .CodeMirror .cm-operator { color: #ff9f1c; }
.web .CodeMirror .cm-tag { color: #ff79c6; }
.web .CodeMirror .cm-bracket { color: #c9c5ea; }
.web .CodeMirror .cm-attribute, .web .CodeMirror .cm-property { color: #7ee6d9; }
.web .CodeMirror .cm-qualifier, .web .CodeMirror .cm-atom { color: #bd93f9; }
.web .CodeMirror .cm-variable, .web .CodeMirror .cm-variable-2, .web .CodeMirror .cm-variable-3 { color: var(--code-ink); }
.web .CodeMirror .cm-meta { color: #ff9f1c; }

/* ---------- таблицы, шаги, ссылки ---------- */
.table-wrap { overflow-x: auto; max-width: 100%; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
table.nice { width: 100%; border-collapse: collapse; font-size: 15px; }
table.nice th, table.nice td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.nice th { background: var(--surface-2); font-weight: 900; color: var(--ink-2); }
table.nice tr:last-child td { border-bottom: 0; }
table.nice td code { white-space: pre-wrap; }

.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps > li {
  counter-increment: step; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px 16px 64px; position: relative;
}
.steps > li::before {
  content: counter(step); position: absolute; left: 16px; top: 14px; width: 34px; height: 34px; border-radius: 11px;
  display: grid; place-items: center; font-weight: 900; background: var(--bg-soft); color: var(--brand);
}
.steps > li > * + * { margin-top: 10px; }
.steps p { margin: 0; }

.links-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.link-card {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--line); text-decoration: none; color: var(--ink); font-weight: 700; font-size: 15px; line-height: 1.35;
}
.link-card:hover { border-color: var(--brand); color: var(--ink); box-shadow: var(--shadow); }
.link-card .ico { flex: none; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: var(--bg-soft); font-size: 17px; }
.link-card small { display: block; color: var(--muted); font-weight: 700; font-size: 12px; }

.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 40px; }
.pager a {
  display: block; padding: 14px 18px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line);
  text-decoration: none; color: var(--ink); font-weight: 800;
}
.pager a:hover { border-color: var(--brand); color: var(--ink); }
.pager a small { display: block; color: var(--muted); font-size: 13px; }
.pager .next { text-align: right; grid-column: 2; }

/* ---------- подвал ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 28px 0 40px; margin-top: 20px; color: var(--muted); font-size: 15px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.socials { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.socials a {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 800; color: var(--ink);
  padding: 8px 14px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line);
}
.socials a:hover { border-color: var(--brand); color: var(--ink); }
.socials svg { width: 18px; height: 18px; }

/* ---------- увеличение картинок ---------- */
dialog.zoom { border: 0; padding: 0; background: transparent; max-width: 96vw; max-height: 94vh; }
dialog.zoom::backdrop { background: rgba(10, 8, 30, .82); }
dialog.zoom img { display: block; max-width: 96vw; max-height: 94vh; border-radius: 12px; background: #fff; cursor: zoom-out; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .task-head { gap: 10px; }
  .task-num { width: 38px; height: 38px; font-size: 16px; border-radius: 12px; }
  .web-btns { margin-left: 0; width: 100%; }
  .web-frame-host { height: 280px; }
  .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: 1; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

.links-title { font-size: 15px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 24px 0 10px !important; }
.content > .links-title:first-of-type { margin-top: 8px !important; }
kbd { background: var(--surface); border: 1px solid var(--line); border-bottom-width: 3px; border-radius: 6px; padding: 0 6px; font-size: .85em; }
.btn-sm { font-size: 14px; padding: 9px 14px; }
.task-body > p > .btn-ghost { color: var(--ink); }
.table-cap { font-weight: 800; color: var(--ink-2); margin: 0 0 -8px !important; }
table.nice td code { background: var(--bg-soft); }
.content > .web { margin-top: 16px; }
.video { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius-sm); overflow: hidden; background: #000; max-width: 720px; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }