/* K-Articles — design tokens & shared UI */
:root {
  --ka-bg: #0a0a0f;
  --ka-surface: #14141b;
  --ka-surface-2: #1d1d27;
  --ka-border: #2a2a36;
  --ka-text: #e8e8f0;
  --ka-muted: #8b8ba1;
  --ka-accent: #7c5cff;
  --ka-accent-2: #00d4aa;
  --ka-warn: #ffb020;
  --ka-radius: 14px;
  --ka-shadow: 0 20px 60px rgba(124, 92, 255, 0.15), 0 2px 8px rgba(0,0,0,.4);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--ka-bg); color: var(--ka-text); font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; }
a { color: var(--ka-accent); text-decoration: none; }
a:hover { color: var(--ka-accent-2); }

/* ---- KA Top Bar (navigation across demo) ---- */
.ka-topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px;
  background: rgba(10,10,15,.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ka-border);
}
.ka-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--ka-text); }
.ka-logo-mark { width: 28px; height: 28px; border-radius: 8px; background: linear-gradient(135deg, var(--ka-accent), var(--ka-accent-2)); display: grid; place-items: center; color: #fff; font-weight: 800; }
.ka-nav { display: flex; gap: 4px; }
.ka-nav a { padding: 8px 14px; border-radius: 8px; color: var(--ka-muted); font-size: 14px; font-weight: 500; transition: all .2s; }
.ka-nav a:hover, .ka-nav a.active { background: var(--ka-surface-2); color: var(--ka-text); }

/* ---- Buttons ---- */
.ka-btn, button.ka-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 10px; border: 0; cursor: pointer;
  background: linear-gradient(135deg, var(--ka-accent), #5a3cd0);
  color: #fff; font-weight: 600; font-size: 15px; font-family: inherit;
  transition: transform .15s, box-shadow .2s;
  text-decoration: none;
}
.ka-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(124,92,255,.35); color: #fff; }
.ka-btn-ghost { background: transparent; border: 1px solid var(--ka-border); color: var(--ka-text); }
.ka-btn-ghost:hover { background: var(--ka-surface-2); box-shadow: none; }
.ka-btn-cta { background: linear-gradient(135deg, var(--ka-accent-2), #00b894); }
.ka-link { background: transparent; border: 0; color: var(--ka-muted); text-decoration: underline; cursor: pointer; font: inherit; padding: 6px; }

/* ---- Forms ---- */
.ka-form { display: grid; gap: 10px; margin-top: 16px; }
.ka-form input, .ka-form textarea, .ka-form select {
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 10px;
  padding: 12px 14px; color: var(--ka-text); font-size: 15px; font-family: inherit;
}
.ka-form input:focus { outline: 2px solid var(--ka-accent); outline-offset: 1px; }
.ka-form-inline { display: flex; gap: 8px; align-items: stretch; }
.ka-form-inline input { flex: 1; }
.ka-reply { padding: 14px; background: rgba(0,212,170,.12); border: 1px solid rgba(0,212,170,.3); border-radius: 10px; color: var(--ka-accent-2); }

/* ---- Overlay / modal ---- */
.ka-overlay {
  position: fixed; inset: 0; z-index: 9000;
  background: rgba(0,0,0,.7); backdrop-filter: blur(6px);
  display: grid; place-items: center;
  animation: ka-fade .25s ease-out;
}
.ka-modal {
  background: var(--ka-surface); border: 1px solid var(--ka-border); border-radius: var(--ka-radius);
  padding: 32px; max-width: 440px; width: calc(100% - 32px);
  box-shadow: var(--ka-shadow);
  position: relative;
  animation: ka-pop .3s cubic-bezier(.2,.8,.3,1.2);
}
.ka-modal h2 { margin: 0 0 8px; font-size: 22px; }
.ka-modal p { color: var(--ka-muted); margin: 0 0 12px; }
.ka-close {
  position: absolute; top: 10px; right: 12px;
  background: transparent; border: 0; color: var(--ka-muted); font-size: 26px; cursor: pointer;
  width: 32px; height: 32px; border-radius: 50%;
}
.ka-close:hover { background: var(--ka-surface-2); color: var(--ka-text); }

/* ---- Mini converter (DeepReading) ---- */
.ka-mini-converter {
  margin: 28px 0; padding: 4px;
  background: linear-gradient(135deg, rgba(124,92,255,.15), rgba(0,212,170,.15));
  border-radius: var(--ka-radius);
  animation: ka-slide .4s ease-out;
}
.ka-mini-inner {
  background: var(--ka-surface); border-radius: calc(var(--ka-radius) - 4px);
  padding: 18px 20px;
  display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: center;
}
.ka-mini-inner p { color: var(--ka-muted); margin: 4px 0 0; font-size: 14px; }
@media (max-width: 640px) { .ka-mini-inner { grid-template-columns: 1fr; } }

/* ---- SlowPoke tooltip ---- */
.ka-slowpoke {
  position: fixed; right: 24px; bottom: 24px; z-index: 8000;
  background: var(--ka-surface); border: 1px solid var(--ka-border);
  border-radius: var(--ka-radius); padding: 18px 20px; padding-right: 38px;
  box-shadow: var(--ka-shadow); max-width: 320px;
  animation: ka-slide .3s ease-out;
}
.ka-slowpoke strong { display: block; margin-bottom: 6px; }
.ka-slowpoke p { color: var(--ka-muted); font-size: 14px; margin: 0 0 12px; }
.ka-slowpoke .ka-close { top: 6px; right: 8px; font-size: 22px; }

/* ---- Mobile sprint bar ---- */
.ka-mobile-bar {
  position: fixed; left: 8px; right: 8px; bottom: 8px; z-index: 7000;
  background: var(--ka-surface); border: 1px solid var(--ka-border);
  border-radius: 14px; padding: 12px 14px;
  display: flex; gap: 12px; align-items: center;
  box-shadow: var(--ka-shadow);
  max-height: 15vh;
  animation: ka-slide-up .3s ease-out;
}
.ka-mobile-summary { flex: 1; min-width: 0; }
.ka-mobile-summary strong { display: block; font-size: 13px; }
.ka-mobile-summary p { font-size: 12px; color: var(--ka-muted); margin: 2px 0 0; }

/* ---- Vanish ---- */
[data-ka-vanish] { transition: opacity .4s, max-height .4s, margin .4s; overflow: hidden; }
.ka-vanished { opacity: 0 !important; max-height: 0 !important; margin: 0 !important; padding-top: 0 !important; padding-bottom: 0 !important; }
.ka-vanish-show { animation: ka-pop .3s; }

/* ---- Quiz & GPT insert ---- */
.ka-quiz { background: var(--ka-surface); border: 1px solid var(--ka-border); border-radius: var(--ka-radius); padding: 22px; margin: 28px 0; }
.ka-quiz h3 { margin: 0 0 14px; }
.ka-quiz-options { display: flex; flex-wrap: wrap; gap: 8px; }
.ka-quiz-options button { background: var(--ka-surface-2); border: 1px solid var(--ka-border); color: var(--ka-text); padding: 10px 16px; border-radius: 10px; cursor: pointer; font: inherit; transition: all .15s; }
.ka-quiz-options button:hover { border-color: var(--ka-accent); }
.ka-quiz-options button.active { background: var(--ka-accent); border-color: var(--ka-accent); color: #fff; }
.ka-gpt-insert {
  margin: 24px 0; padding: 22px;
  background: linear-gradient(135deg, rgba(124,92,255,.08), rgba(0,212,170,.08));
  border: 1px solid rgba(124,92,255,.25); border-radius: var(--ka-radius);
  animation: ka-slide .4s ease-out;
}
.ka-gpt-insert small { color: var(--ka-accent-2); font-weight: 600; letter-spacing: .02em; }
.ka-gpt-insert h3 { margin: 8px 0 12px; }
.ka-gpt-insert ul { margin: 10px 0; padding-left: 20px; }
.ka-gpt-insert li { margin: 4px 0; }

/* ---- Zoomer Rail ---- */
.ka-rail {
  position: sticky; top: 80px; display: grid; gap: 12px;
  max-height: calc(100vh - 100px); overflow-y: auto; padding-right: 6px;
}
.ka-rail::-webkit-scrollbar { width: 6px; } .ka-rail::-webkit-scrollbar-thumb { background: var(--ka-border); border-radius: 3px; }
.ka-sticky-note {
  background: #fef08a; color: #3f2d00;
  padding: 14px 16px; border-radius: 4px;
  box-shadow: 0 8px 20px rgba(0,0,0,.3);
  transform: rotate(-1.5deg); font-size: 14px; font-weight: 600;
}
.ka-sticky-note:nth-child(2n) { background: #fda4af; color: #450a1f; transform: rotate(1.5deg); }
.ka-sticky-note:nth-child(3n) { background: #a7f3d0; color: #064e3b; transform: rotate(-.5deg); }
.ka-rail-video {
  aspect-ratio: 9/16; background: var(--ka-surface-2); border-radius: 10px;
  display: grid; place-items: center; color: var(--ka-muted); font-size: 13px;
  background-image: linear-gradient(135deg, #ff6b9d, #7c5cff); color: #fff;
  position: relative; overflow: hidden; cursor: pointer;
}
.ka-rail-video::before { content: "▶"; font-size: 40px; }
.ka-rail-video span { position: absolute; bottom: 8px; left: 10px; font-weight: 600; font-size: 13px; }
.ka-rail-cta { padding: 14px; background: var(--ka-surface); border: 1px solid var(--ka-accent); border-radius: 10px; text-align: center; }
.ka-rail-cta strong { display: block; margin-bottom: 8px; }

@media (max-width: 1024px) { .ka-rail { display: none; } }

/* ---- Article layout ---- */
.ka-article-layout {
  display: grid; grid-template-columns: minmax(0, 720px) 300px;
  gap: 40px; max-width: 1180px; margin: 40px auto; padding: 0 24px;
}
@media (max-width: 1024px) { .ka-article-layout { grid-template-columns: 1fr; } }
article.ka-article { font-size: 17px; line-height: 1.7; }
article.ka-article h1 { font-size: 36px; line-height: 1.2; margin: 0 0 16px; }
article.ka-article h2 { font-size: 26px; margin: 40px 0 14px; scroll-margin-top: 80px; }
article.ka-article h3 { font-size: 20px; margin: 28px 0 10px; }
article.ka-article p { margin: 12px 0; color: #d0d0dc; }
article.ka-article ul { padding-left: 22px; }
article.ka-article li { margin: 6px 0; color: #d0d0dc; }
article.ka-article img { max-width: 100%; border-radius: 10px; }
.ka-article-lead { font-size: 19px; color: #c8c8d8; }

.ka-hero-img {
  aspect-ratio: 16/8; border-radius: 14px;
  background: linear-gradient(135deg, #7c5cff 0%, #00d4aa 100%);
  display: grid; place-items: center; color: rgba(255,255,255,.9);
  font-size: 18px; font-weight: 600; margin: 14px 0 24px;
  position: relative; overflow: hidden;
}
.ka-hero-img::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 70% 30%, rgba(255,255,255,.25), transparent 50%); }

.ka-converter {
  padding: 28px; border-radius: var(--ka-radius);
  background: linear-gradient(135deg, rgba(124,92,255,.12), rgba(0,212,170,.12));
  border: 1px solid rgba(124,92,255,.3); margin: 32px 0;
}
.ka-converter h3 { margin-top: 0; }

/* ---- Table of contents (anchor menu) ---- */
.ka-toc {
  background: var(--ka-surface); border: 1px solid var(--ka-border); border-radius: 10px;
  padding: 14px 18px; margin: 24px 0; font-size: 14px;
}
.ka-toc strong { display: block; margin-bottom: 8px; }
.ka-toc ol { margin: 0; padding-left: 22px; }
.ka-toc li { margin: 4px 0; }

/* ---- Status bar (debug) ---- */
.ka-statusbar {
  position: fixed; left: 12px; bottom: 12px; z-index: 500;
  background: rgba(20,20,27,.95); border: 1px solid var(--ka-border); border-radius: 10px;
  padding: 10px 14px; font-size: 12px; font-family: 'JetBrains Mono', monospace;
  color: var(--ka-muted); max-width: 280px; backdrop-filter: blur(6px);
}
.ka-statusbar strong { color: var(--ka-accent-2); }
.ka-statusbar button { margin-left: 6px; background: transparent; border: 1px solid var(--ka-border); color: var(--ka-muted); padding: 2px 6px; border-radius: 4px; cursor: pointer; font-size: 11px; }

/* ---- Animations ---- */
@keyframes ka-fade { from { opacity: 0 } to { opacity: 1 } }
@keyframes ka-pop { from { transform: scale(.9); opacity: 0 } to { transform: scale(1); opacity: 1 } }
@keyframes ka-slide { from { transform: translateY(12px); opacity: 0 } to { transform: translateY(0); opacity: 1 } }
@keyframes ka-slide-up { from { transform: translateY(100%) } to { transform: translateY(0) } }
.ka-fadein { animation: ka-slide .5s ease-out; }

/* ---- Landing-specific ---- */
.ka-hero { padding: 80px 24px 60px; max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
@media (max-width: 900px) { .ka-hero { grid-template-columns: 1fr; padding-top: 40px; } }
.ka-hero h1 { font-size: 52px; line-height: 1.08; margin: 0 0 16px; letter-spacing: -.02em; }
.ka-hero h1 .grad { background: linear-gradient(135deg, var(--ka-accent), var(--ka-accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ka-hero p.lead { font-size: 18px; color: var(--ka-muted); margin: 0 0 28px; max-width: 520px; }
.ka-hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.ka-hero-note { margin-top: 12px; font-size: 13px; color: var(--ka-muted); }
.ka-hero-preview {
  aspect-ratio: 4/3; border-radius: 18px;
  background: var(--ka-surface); border: 1px solid var(--ka-border);
  position: relative; overflow: hidden;
  box-shadow: var(--ka-shadow);
}
.ka-hero-preview .floaty { position: absolute; padding: 10px 14px; background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 10px; font-size: 13px; box-shadow: 0 8px 20px rgba(0,0,0,.3); }
.ka-hero-preview .f1 { top: 20px; left: 20px; animation: ka-float 4s ease-in-out infinite; }
.ka-hero-preview .f2 { top: 50%; right: 20px; animation: ka-float 5s ease-in-out infinite .5s; }
.ka-hero-preview .f3 { bottom: 20px; left: 50px; animation: ka-float 4.5s ease-in-out infinite 1s; }
@keyframes ka-float { 0%, 100% { transform: translateY(0) } 50% { transform: translateY(-8px) } }

.ka-section { max-width: 1180px; margin: 0 auto; padding: 60px 24px; }
.ka-section h2 { font-size: 36px; margin: 0 0 12px; letter-spacing: -.01em; }
.ka-section .sub { color: var(--ka-muted); max-width: 640px; margin: 0 0 36px; font-size: 17px; }

.ka-grid { display: grid; gap: 16px; }
.ka-grid-3 { grid-template-columns: repeat(3, 1fr); }
.ka-grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 820px) { .ka-grid-3, .ka-grid-2 { grid-template-columns: 1fr; } }

.ka-card {
  background: var(--ka-surface); border: 1px solid var(--ka-border); border-radius: var(--ka-radius);
  padding: 22px; transition: border-color .2s, transform .2s;
}
.ka-card:hover { border-color: var(--ka-accent); transform: translateY(-2px); }
.ka-card-icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(124,92,255,.15); display: grid; place-items: center; margin-bottom: 14px; font-size: 20px; }
.ka-card h3 { margin: 0 0 6px; font-size: 18px; }
.ka-card p { margin: 0; color: var(--ka-muted); font-size: 14px; line-height: 1.55; }

.ka-pain { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 820px) { .ka-pain { grid-template-columns: repeat(2, 1fr); } }
.ka-pain div { padding: 18px; background: var(--ka-surface); border: 1px solid var(--ka-border); border-radius: 10px; }
.ka-pain div em { font-size: 22px; font-style: normal; }
.ka-pain div p { margin: 8px 0 0; color: var(--ka-muted); font-size: 14px; }

.ka-pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 820px) { .ka-pricing { grid-template-columns: 1fr; } }
.ka-plan { background: var(--ka-surface); border: 1px solid var(--ka-border); border-radius: var(--ka-radius); padding: 28px; }
.ka-plan.featured { border-color: var(--ka-accent); box-shadow: 0 0 0 1px var(--ka-accent); position: relative; }
.ka-plan.featured::before { content: "Популярный"; position: absolute; top: -10px; right: 16px; background: var(--ka-accent); color: #fff; padding: 3px 10px; border-radius: 10px; font-size: 11px; font-weight: 700; }
.ka-plan h3 { margin: 0 0 6px; }
.ka-plan .price { font-size: 36px; font-weight: 800; margin: 10px 0; }
.ka-plan .price small { font-size: 14px; color: var(--ka-muted); font-weight: 400; }
.ka-plan ul { list-style: none; padding: 0; margin: 16px 0; }
.ka-plan li { padding: 6px 0; color: var(--ka-muted); font-size: 14px; padding-left: 22px; position: relative; }
.ka-plan li::before { content: "✓"; position: absolute; left: 0; color: var(--ka-accent-2); font-weight: 700; }

.ka-faq { max-width: 780px; margin: 0 auto; }
.ka-faq details { background: var(--ka-surface); border: 1px solid var(--ka-border); border-radius: 10px; padding: 14px 18px; margin-bottom: 10px; }
.ka-faq summary { cursor: pointer; font-weight: 600; font-size: 15px; }
.ka-faq[open] summary { margin-bottom: 8px; }
.ka-faq p { color: var(--ka-muted); margin: 8px 0 0; }

.ka-footer { border-top: 1px solid var(--ka-border); padding: 40px 24px; margin-top: 80px; color: var(--ka-muted); text-align: center; font-size: 14px; }

/* ---- Dashboard ---- */
.ka-dashboard { max-width: 1280px; margin: 24px auto; padding: 0 24px; }
.ka-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
@media (max-width: 820px) { .ka-kpis { grid-template-columns: repeat(2, 1fr); } }
.ka-kpi { background: var(--ka-surface); border: 1px solid var(--ka-border); border-radius: 12px; padding: 18px; }
.ka-kpi small { color: var(--ka-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.ka-kpi .v { font-size: 28px; font-weight: 700; margin: 4px 0; }
.ka-kpi .delta { font-size: 13px; color: var(--ka-accent-2); }
.ka-kpi .delta.neg { color: #ff6b6b; }
.ka-panels { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
@media (max-width: 1000px) { .ka-panels { grid-template-columns: 1fr; } }
.ka-panel { background: var(--ka-surface); border: 1px solid var(--ka-border); border-radius: 12px; padding: 22px; }
.ka-panel h3 { margin: 0 0 14px; font-size: 17px; }
.ka-funnel-row { display: grid; grid-template-columns: 60px 1fr 70px; gap: 10px; align-items: center; padding: 6px 0; font-size: 13px; }
.ka-funnel-bar { height: 24px; background: var(--ka-surface-2); border-radius: 6px; overflow: hidden; }
.ka-funnel-fill { height: 100%; background: linear-gradient(90deg, var(--ka-accent), var(--ka-accent-2)); display: grid; place-items: center; color: #fff; font-size: 12px; font-weight: 600; }
.ka-event-log { max-height: 500px; overflow-y: auto; font-family: 'JetBrains Mono', monospace; font-size: 12px; }
.ka-event-log div { padding: 6px 0; border-bottom: 1px solid var(--ka-border); }
.ka-event-log .e-name { color: var(--ka-accent-2); }
.ka-event-log .e-ts { color: var(--ka-muted); }

/* ---- Editor ---- */
.ka-editor { display: grid; grid-template-columns: 240px 1fr 280px; height: calc(100vh - 54px); }
@media (max-width: 980px) { .ka-editor { grid-template-columns: 1fr; height: auto; } .ka-editor-side { display: none; } }
.ka-editor-side { background: var(--ka-surface); border-right: 1px solid var(--ka-border); overflow-y: auto; padding: 16px; }
.ka-editor-side:last-child { border-right: 0; border-left: 1px solid var(--ka-border); }
.ka-editor-side h4 { margin: 0 0 8px; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--ka-muted); }
.ka-palette-item { padding: 10px 12px; background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 8px; margin-bottom: 8px; cursor: grab; font-size: 14px; display: flex; align-items: center; gap: 8px; user-select: none; position: relative; }
.ka-palette-item:hover { border-color: var(--ka-accent); }
.ka-palette-item em { font-style: normal; font-size: 16px; }
.ka-tip {
  position: fixed;
  background: #15151c;
  color: #e6e6ee;
  border: 1px solid #2d2d3a;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.45;
  max-width: 280px;
  box-shadow: 0 12px 32px rgba(0,0,0,.55);
  opacity: 0;
  pointer-events: none;
  transform: translateX(-4px);
  transition: opacity .15s ease, transform .15s ease;
  z-index: 99999;
}
.ka-tip.visible { opacity: 1; transform: translateX(0); }
.ka-tip::before {
  content: '';
  position: absolute;
  right: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-right-color: #2d2d3a;
}
.ka-tip.flip::before {
  right: auto;
  left: 100%;
  border-right-color: transparent;
  border-left-color: #2d2d3a;
}
.ka-canvas {
  overflow-y: auto; padding: 30px; background: #07070c; position: relative;
  display: grid; grid-template-columns: minmax(0, 720px) 240px; gap: 28px;
  justify-content: center; align-content: start;
}
.ka-canvas-doc { margin: 0 !important; } /* override старого margin:0 auto — теперь центрирует grid */
.ka-rail-column {
  position: relative;
  min-height: 600px;
  border: 2px dashed transparent;
  border-radius: 12px;
  padding: 8px;
  transition: background .15s, border-color .15s;
}
.ka-rail-column.empty {
  border-color: var(--ka-border);
  background: rgba(255,255,255,.01);
}
.ka-rail-column.drag-over {
  border-color: var(--ka-accent);
  background: rgba(124,92,255,.08);
}
.ka-rail-column.drag-over.invalid {
  border-color: #ff4d4f;
  background: rgba(255,77,79,.08);
}
.ka-rail-column-hint {
  position: sticky; top: 0;
  text-align: center; color: var(--ka-muted);
  font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  padding: 6px 8px; margin-bottom: 8px;
  background: rgba(255,255,255,.02); border-radius: 6px;
}
.ka-rail-column-empty-msg {
  padding: 28px 12px; text-align: center; color: var(--ka-muted); font-size: 12px; line-height: 1.5;
}
.ka-rail-column-empty-msg strong { color: var(--ka-text); display: block; margin-bottom: 6px; }
.ka-rail-item {
  position: absolute;
  left: 8px; right: 8px;
  width: auto;
  background: var(--ka-surface-2);
  border: 1px solid var(--ka-border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--ka-text);
  transition: top .35s cubic-bezier(.2,.8,.2,1), box-shadow .15s;
  z-index: 5;
  box-sizing: border-box;
}
.ka-rail-item:hover { box-shadow: 0 4px 16px rgba(0,0,0,.4); border-color: var(--ka-accent); }
.ka-rail-item .ka-rail-handle {
  position: absolute; top: -8px; left: 8px; background: var(--ka-accent); color: #fff;
  font-size: 9px; padding: 2px 6px; border-radius: 4px; opacity: 0; transition: opacity .15s;
  pointer-events: none; font-weight: 600; text-transform: uppercase; letter-spacing: .04em;
}
.ka-rail-item:hover .ka-rail-handle { opacity: 1; }
.ka-rail-item .ka-rail-actions {
  position: absolute; top: -10px; right: 6px; display: flex; gap: 3px; opacity: 0; transition: opacity .15s;
}
.ka-rail-item:hover .ka-rail-actions { opacity: 1; }
.ka-rail-item .ka-rail-action {
  background: #1c1c24; color: #c9c9d4; border: 1px solid #2a2a36;
  width: 22px; height: 22px; border-radius: 5px; cursor: pointer; font-size: 11px;
  display: inline-flex; align-items: center; justify-content: center; padding: 0;
}
.ka-rail-item .ka-rail-action:hover { background: var(--ka-accent); color: #fff; border-color: var(--ka-accent); }
.ka-rail-item .ka-rail-action.del:hover { background: #ff4d4f; border-color: #ff4d4f; }
.ka-rail-item [data-ka-rail-edit] { outline: none; min-width: 1em; }
.ka-rail-item [data-ka-rail-edit]:focus { background: rgba(124,92,255,.08); border-radius: 3px; }
.ka-rail-sticker { display: flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 6px; color: #fff; font-weight: 600; font-size: 13px; }
.ka-rail-cta { display: block; padding: 10px 12px; background: var(--ka-accent); color: #fff; border-radius: 8px; text-align: center; font-weight: 600; font-size: 13px; cursor: pointer; }
.ka-rail-cta-href { display: block; margin-top: 6px; font-size: 11px; color: var(--ka-muted); padding: 4px 6px; background: var(--ka-surface); border-radius: 4px; }
.ka-rail-note-text { font-size: 13px; color: var(--ka-text); line-height: 1.45; }
.ka-rail-note-tag { font-size: 10px; color: var(--ka-muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 4px; }
.ka-rail-anchor-pill { display: inline-block; margin-top: 6px; font-size: 10px; color: var(--ka-accent); padding: 2px 6px; background: rgba(124,92,255,.12); border-radius: 4px; }
.ka-rail-no-anchor { font-size: 10px; color: var(--ka-muted); margin-top: 6px; font-style: italic; }
@media (max-width: 1180px) {
  .ka-canvas { grid-template-columns: minmax(0, 720px); }
  .ka-rail-column { display: none; }
}
.ka-canvas-doc {
  max-width: 720px; margin: 0 auto; border: 1px solid var(--ka-border); border-radius: 12px; padding: 40px; min-height: 600px;
  /* Theme tokens (default = dark) */
  --doc-bg: #14141b;
  --doc-text: #e8e8f0;
  --doc-text-muted: #c8c8d8;
  --doc-border: rgba(255,255,255,.08);
  --doc-cell-base: rgba(255,255,255,.02);
  --doc-cell-stripe: rgba(255,255,255,.05);
  --doc-head-bg: rgba(124,92,255,.18);
  --doc-head-text: #ffffff;
  --doc-grad-1: rgba(124,92,255,.10);
  --doc-grad-2: rgba(0,212,170,.10);
  --doc-grad-1-hi: rgba(124,92,255,.20);
  --doc-grad-2-hi: rgba(0,212,170,.20);
  --doc-grad-head: linear-gradient(135deg, rgba(124,92,255,.32), rgba(0,212,170,.32));
  background: var(--doc-bg); color: var(--doc-text);
  transition: background .25s ease, color .25s ease;
}
.ka-canvas-doc[data-theme="light"] {
  --doc-bg: #ffffff;
  --doc-text: #1a1a24;
  --doc-text-muted: #4a4a5e;
  --doc-border: rgba(0,0,0,.08);
  --doc-cell-base: #fafafc;
  --doc-cell-stripe: #f1f1f6;
  --doc-head-bg: #ece8ff;
  --doc-head-text: #2a1d6b;
  --doc-grad-1: rgba(124,92,255,.06);
  --doc-grad-2: rgba(0,212,170,.06);
  --doc-grad-1-hi: rgba(124,92,255,.12);
  --doc-grad-2-hi: rgba(0,212,170,.12);
  --doc-grad-head: linear-gradient(135deg, #d6cdff, #b8f2e3);
  border-color: rgba(0,0,0,.08);
}
.ka-canvas-doc[data-theme="paper"] {
  --doc-bg: #f7f3ea;
  --doc-text: #2a2418;
  --doc-text-muted: #5e5443;
  --doc-border: rgba(106,86,46,.18);
  --doc-cell-base: #fbf8f0;
  --doc-cell-stripe: #f0e9d6;
  --doc-head-bg: #e9dfc4;
  --doc-head-text: #3a2f17;
  --doc-grad-1: rgba(180,140,80,.10);
  --doc-grad-2: rgba(120,100,60,.10);
  --doc-grad-1-hi: rgba(180,140,80,.20);
  --doc-grad-2-hi: rgba(120,100,60,.20);
  --doc-grad-head: linear-gradient(135deg, #ead7b1, #d8c694);
  border-color: rgba(106,86,46,.18);
}
.ka-canvas-doc[data-theme="gradient"] {
  --doc-bg: linear-gradient(160deg, #1a1230 0%, #0c1a26 100%);
  --doc-text: #f0eaff;
  --doc-text-muted: #b8b3d6;
  --doc-border: rgba(255,255,255,.10);
  --doc-cell-base: rgba(255,255,255,.03);
  --doc-cell-stripe: rgba(255,255,255,.06);
  --doc-head-bg: rgba(140,108,255,.30);
  --doc-head-text: #ffffff;
  --doc-grad-1: rgba(140,108,255,.14);
  --doc-grad-2: rgba(0,212,170,.14);
  --doc-grad-1-hi: rgba(140,108,255,.26);
  --doc-grad-2-hi: rgba(0,212,170,.26);
  --doc-grad-head: linear-gradient(135deg, rgba(140,108,255,.45), rgba(0,212,170,.45));
}
.ka-canvas-doc[data-theme="mint"] {
  --doc-bg: #f1faf6;
  --doc-text: #14322a;
  --doc-text-muted: #3f6655;
  --doc-border: rgba(0,80,60,.12);
  --doc-cell-base: #ffffff;
  --doc-cell-stripe: #e3f3eb;
  --doc-head-bg: #c8ecdb;
  --doc-head-text: #0d3d2c;
  --doc-grad-1: rgba(0,200,160,.08);
  --doc-grad-2: rgba(60,180,255,.08);
  --doc-grad-1-hi: rgba(0,200,160,.16);
  --doc-grad-2-hi: rgba(60,180,255,.16);
  --doc-grad-head: linear-gradient(135deg, #b6ecd0, #b3e3f1);
  border-color: rgba(0,80,60,.12);
}

/* ---- Table block ---- */
.ka-table-wrap { margin: 14px 0; overflow-x: auto; }
.ka-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 15px; line-height: 1.5; color: var(--doc-text); }
.ka-table th, .ka-table td { padding: 10px 14px; text-align: left; outline: none; vertical-align: top; }
.ka-table th { color: var(--doc-head-text); font-weight: 600; }
.ka-table td { color: var(--doc-text-muted); }
/* Flat — без рамок, чередование строк */
.ka-table--flat th { background: var(--doc-head-bg); }
.ka-table--flat tr:nth-child(odd) td { background: var(--doc-cell-base); }
.ka-table--flat tr:nth-child(even) td { background: var(--doc-cell-stripe); }
.ka-table--flat th:first-child { border-top-left-radius: 8px; }
.ka-table--flat th:last-child { border-top-right-radius: 8px; }
.ka-table--flat tr:last-child td:first-child { border-bottom-left-radius: 8px; }
.ka-table--flat tr:last-child td:last-child { border-bottom-right-radius: 8px; }
/* Simple — с рамками */
.ka-table--simple { border: 1px solid var(--doc-border); border-radius: 10px; overflow: hidden; }
.ka-table--simple th { background: var(--doc-cell-stripe); border-bottom: 1px solid var(--doc-border); }
.ka-table--simple td { border-bottom: 1px solid var(--doc-border); }
.ka-table--simple tr:last-child td { border-bottom: none; }
.ka-table--simple th + th, .ka-table--simple td + td { border-left: 1px solid var(--doc-border); }
/* Gradient — минимал с градиентом */
.ka-table--gradient { border-radius: 14px; overflow: hidden; box-shadow: 0 4px 24px rgba(0,0,0,.08); }
.ka-table--gradient th { background: var(--doc-grad-head); color: var(--doc-head-text); font-weight: 700; letter-spacing: .01em; }
.ka-table--gradient tr:nth-child(odd) td { background: linear-gradient(135deg, var(--doc-grad-1), var(--doc-grad-2)); }
.ka-table--gradient tr:nth-child(even) td { background: linear-gradient(135deg, var(--doc-grad-1-hi), var(--doc-grad-2-hi)); }
.ka-table-controls { display: flex; gap: 6px; margin-top: 8px; }
.ka-table-controls button {
  background: var(--ka-surface-2); color: var(--ka-muted); border: 1px solid var(--ka-border);
  border-radius: 6px; padding: 4px 10px; font-size: 12px; cursor: pointer; transition: all .12s;
}
.ka-table-controls button:hover { color: var(--ka-text); border-color: var(--ka-accent); }

/* Тема статьи в инспекторе — палитра карточек */
.ka-theme-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 6px; }
.ka-theme-card {
  border: 2px solid transparent; border-radius: 10px; padding: 10px; cursor: pointer; transition: all .15s;
  text-align: center; font-size: 12px; font-weight: 600;
}
.ka-theme-card:hover { transform: translateY(-1px); }
.ka-theme-card.active { border-color: var(--ka-accent); box-shadow: 0 0 0 3px rgba(124,92,255,.18); }
.ka-theme-card[data-theme="dark"] { background: #14141b; color: #e8e8f0; }
.ka-theme-card[data-theme="light"] { background: #ffffff; color: #1a1a24; }
.ka-theme-card[data-theme="paper"] { background: #f7f3ea; color: #2a2418; }
.ka-theme-card[data-theme="gradient"] { background: linear-gradient(160deg, #1a1230, #0c1a26); color: #f0eaff; }
.ka-theme-card[data-theme="mint"] { background: #f1faf6; color: #14322a; }
.ka-canvas-block { padding: 10px 12px; border: 1px dashed transparent; border-radius: 6px; margin: 6px 0; position: relative; transition: transform .22s cubic-bezier(.2,.8,.2,1), opacity .15s ease, box-shadow .15s ease; will-change: transform; }
.ka-canvas-block:hover, .ka-canvas-block.selected { border-color: var(--ka-accent); background: rgba(124,92,255,.04); }
.ka-canvas-block.ka-dragging { opacity: .35; box-shadow: 0 8px 24px rgba(0,0,0,.4); }
.ka-canvas-block .block-tag { position: absolute; top: -10px; left: 8px; background: var(--ka-accent); color: #fff; font-size: 10px; padding: 2px 6px; border-radius: 4px; opacity: 0; transition: opacity .15s; }
.ka-canvas-block:hover .block-tag, .ka-canvas-block.selected .block-tag { opacity: 1; }
.ka-block-actions { position: absolute; top: -12px; right: 8px; display: flex; gap: 4px; opacity: 0; transition: opacity .15s; z-index: 5; }
.ka-canvas-block:hover .ka-block-actions, .ka-canvas-block.selected .ka-block-actions { opacity: 1; }
.ka-block-action { background: #1c1c24; border: 1px solid #2a2a36; color: #c9c9d4; width: 24px; height: 24px; border-radius: 6px; cursor: pointer; font-size: 12px; line-height: 1; display: inline-flex; align-items: center; justify-content: center; padding: 0; transition: background .12s, color .12s, border-color .12s, transform .12s; }
.ka-block-action:hover { background: var(--ka-accent); color: #fff; border-color: var(--ka-accent); transform: translateY(-1px); }
.ka-block-action[data-ka-action="del"]:hover { background: #ff4d4f; border-color: #ff4d4f; }
.ka-block-action.active { background: var(--ka-accent); color: #fff; border-color: var(--ka-accent); }
.ka-canvas-block.has-vanish { border-color: var(--ka-accent); border-style: dashed; background: rgba(124,92,255,.06); transition: opacity .45s ease, filter .45s ease, transform .45s ease; }
/* В редакторе «исчезнувший» блок не схлопываем полностью — оставляем призрак + replay-кнопку, чтобы понять что он пропал */
.ka-canvas-block.vanished { opacity: .25; filter: grayscale(.5) blur(.5px); transform: translateY(-2px); }
.ka-canvas-block.vanished > *:not(.ka-vanish-replay):not(.block-tag):not(.ka-vanish-badge):not(.ka-block-actions) { pointer-events: none; }
.ka-vanish-replay { position: absolute; top: -10px; right: 110px; background: var(--ka-accent); color: #fff; border: none; border-radius: 4px; padding: 2px 8px; font-size: 10px; font-weight: 600; cursor: pointer; opacity: 0; transition: opacity .15s; pointer-events: auto; font-family: inherit; z-index: 6; }
.ka-canvas-block.vanished .ka-vanish-replay { opacity: 1; }
.ka-canvas-block.vanished .ka-vanish-replay:hover { background: #fff; color: var(--ka-accent); }
/* На опубликованной странице (в demo.html) у блока с этим классом будет уже честное `display:none` через SDK */
.ka-vanish-badge {
  position: absolute; top: -10px; right: 100px; background: var(--ka-accent); color: #fff;
  font-size: 10px; padding: 2px 8px; border-radius: 4px; opacity: 0; transition: opacity .15s;
  pointer-events: none; font-weight: 600; letter-spacing: .02em;
}
.ka-canvas-block.has-vanish .ka-vanish-badge { opacity: 1; }
.ka-drop-indicator { height: 2px; background: var(--ka-accent); margin: 4px 0; border-radius: 2px; }
.ka-drop-line { position: absolute; left: 30px; right: 30px; height: 2px; background: var(--ka-accent); border-radius: 2px; pointer-events: none; box-shadow: 0 0 8px rgba(124,92,255,.6); z-index: 100; }
.ka-inspector label { display: block; margin-top: 12px; font-size: 12px; color: var(--ka-muted); }
.ka-inspector input, .ka-inspector textarea, .ka-inspector select { width: 100%; margin-top: 4px; background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 8px; padding: 8px 10px; color: var(--ka-text); font: inherit; }

.ka-toolbar { padding: 10px 18px; background: var(--ka-surface); border-bottom: 1px solid var(--ka-border); display: flex; gap: 8px; align-items: center; }
.ka-toolbar .sep { flex: 1; }
.ka-pill { padding: 4px 10px; background: rgba(0,212,170,.15); color: var(--ka-accent-2); border-radius: 99px; font-size: 12px; font-weight: 600; }

/* ---- Floating typography toolbar ---- */
.ka-float-tb {
  position: fixed; z-index: 9999;
  display: flex; align-items: center; gap: 6px;
  background: var(--ka-surface);
  border: 1px solid var(--ka-border);
  border-radius: 10px;
  padding: 6px 8px;
  box-shadow: 0 12px 32px rgba(0,0,0,.5), 0 2px 8px rgba(0,0,0,.3);
  font-size: 13px;
  animation: ka-fade .15s ease-out;
}
.ka-float-tb select, .ka-float-tb input[type="number"] {
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 6px;
  color: var(--ka-text); font: inherit; padding: 5px 8px; height: 30px;
}
.ka-float-tb select { min-width: 110px; }
.ka-float-tb select:focus, .ka-float-tb input:focus { outline: 1px solid var(--ka-accent); }
.ka-float-tb button {
  width: 30px; height: 30px; padding: 0;
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 6px;
  color: var(--ka-text); cursor: pointer; font: inherit; font-size: 14px;
  display: grid; place-items: center; font-family: inherit;
}
.ka-float-tb button:hover { border-color: var(--ka-accent); }
.ka-float-tb button.active { background: var(--ka-accent); border-color: var(--ka-accent); color: #fff; }
.ka-float-tb .ka-tb-sep { width: 1px; height: 20px; background: var(--ka-border); margin: 0 2px; }
.ka-tb-color {
  position: relative; display: inline-flex; align-items: center;
  width: 34px; height: 30px; border: 1px solid var(--ka-border); border-radius: 6px;
  background: var(--ka-surface-2); cursor: pointer; overflow: hidden;
}
.ka-tb-color span { display: block; width: 20px; height: 20px; margin: 0 auto; border-radius: 4px; background: #e8e8f0; border: 1px solid rgba(255,255,255,.2); }
.ka-tb-color input[type="color"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; border: 0; padding: 0; }

/* Placeholder для пустого editable */
[data-ka-edit]:empty::before {
  content: attr(data-placeholder);
  color: var(--ka-muted); opacity: .5;
}
[data-ka-edit]:focus { outline: 2px solid rgba(124,92,255,.4); outline-offset: 4px; border-radius: 4px; }

/* ---- Image block in editor ---- */
.ka-img-empty {
  display: grid; place-items: center; gap: 4px;
  padding: 36px 20px; min-height: 160px;
  background: rgba(124,92,255,.05);
  border: 2px dashed var(--ka-border);
  border-radius: 12px;
  color: var(--ka-muted);
  text-align: center;
  cursor: pointer; outline: none;
  transition: border-color .15s, background .15s, transform .15s;
}
.ka-img-empty:hover, .ka-img-empty:focus { border-color: var(--ka-accent); color: var(--ka-text); }
.ka-img-empty.ka-dragover {
  border-color: var(--ka-accent-2);
  background: rgba(0,212,170,.08);
  transform: scale(1.01);
  color: var(--ka-text);
}
.ka-img-empty .ka-img-ico { font-size: 36px; }
.ka-img-empty small { font-size: 12px; display: block; }
.ka-img-url-form {
  display: flex; gap: 6px; margin: 8px 0 6px;
  width: min(480px, 100%);
}
.ka-img-url-form input {
  flex: 1; min-width: 0;
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 8px;
  padding: 8px 12px; color: var(--ka-text); font: inherit; font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
}
.ka-img-url-form input:focus { outline: 2px solid var(--ka-accent); outline-offset: 1px; }
.ka-img-url-form button {
  padding: 8px 16px; border: 0; border-radius: 8px; cursor: pointer; font: inherit; font-weight: 600;
  background: var(--ka-accent); color: #fff;
}
.ka-img-url-form button:hover { background: #6b4ce0; }

.ka-img-search {
  display: flex; gap: 6px; flex-wrap: wrap; justify-content: center;
  width: min(520px, 100%); margin: 4px 0 10px;
}
.ka-img-search input {
  flex: 1 1 180px; min-width: 0;
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 8px;
  padding: 7px 10px; color: var(--ka-text); font: inherit; font-size: 13px;
}
.ka-img-search input:focus { outline: 2px solid var(--ka-accent); outline-offset: 1px; }
.ka-img-search button {
  padding: 7px 12px; border: 1px solid var(--ka-border); border-radius: 8px; cursor: pointer;
  background: var(--ka-surface-2); color: var(--ka-text); font: inherit; font-size: 12px; font-weight: 500;
  white-space: nowrap;
}
.ka-img-search button:hover { border-color: var(--ka-accent); background: var(--ka-surface); }

.ka-copyright-notice {
  margin-top: 14px; padding: 10px 12px;
  width: min(520px, 100%);
  background: rgba(255,176,32,.08);
  border: 1px solid rgba(255,176,32,.3);
  border-radius: 8px;
  font-size: 12px; line-height: 1.5;
  color: #d4a95a;
  text-align: left;
}
.ka-copyright-notice strong { color: var(--ka-warn); }

/* ---- Video block in editor ---- */
.ka-video-empty {
  display: grid; place-items: center; gap: 4px;
  padding: 36px 20px; min-height: 220px;
  background: rgba(0,212,170,.04);
  border: 2px dashed var(--ka-border);
  border-radius: 12px;
  color: var(--ka-muted);
  text-align: center;
  outline: none;
  transition: border-color .15s;
}
.ka-video-empty:hover { border-color: var(--ka-accent-2); color: var(--ka-text); }
.ka-video-empty .ka-img-ico { font-size: 36px; color: var(--ka-accent-2); }
.ka-video-empty small { font-size: 12px; display: block; }
.ka-video-empty small code {
  background: var(--ka-surface-2); padding: 1px 6px; border-radius: 4px;
  font-size: 11px; color: var(--ka-accent);
}
.ka-text-btn {
  background: transparent; border: 0; color: var(--ka-muted);
  cursor: pointer; font: inherit; font-size: 13px; text-decoration: underline;
  padding: 6px 0;
}
.ka-text-btn:hover { color: var(--ka-accent-2); }
.ka-embed-expand {
  width: min(520px, 100%);
  display: flex; flex-direction: column; gap: 8px;
  margin: 6px 0 10px;
}
.ka-embed-expand textarea {
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 8px;
  padding: 10px 12px; color: var(--ka-text); font: inherit;
  font-family: 'JetBrains Mono', monospace; font-size: 12px; line-height: 1.5;
  resize: vertical;
}
.ka-embed-expand textarea:focus { outline: 2px solid var(--ka-accent); outline-offset: 1px; }
.ka-embed-expand button {
  padding: 8px 16px; border: 0; border-radius: 8px; cursor: pointer;
  background: var(--ka-accent-2); color: #fff; font: inherit; font-weight: 600;
}
.ka-embed-expand button:hover { background: #00b894; }
.ka-video-wrap { cursor: pointer; }
.ka-video-wrap iframe { pointer-events: auto; }
.ka-video-meta {
  font-size: 12px; color: var(--ka-muted); margin-top: 8px;
}
.ka-video-meta a { color: var(--ka-muted); text-decoration: underline; }
.ka-video-meta a:hover { color: var(--ka-accent-2); }
.ka-canvas-block.selected .ka-video-wrap > div:first-child { outline: 2px solid var(--ka-accent); outline-offset: 2px; }

/* ---- Button block in editor: href hint ---- */
.ka-btn-href {
  display: inline-block; margin-left: 10px;
  font-family: 'JetBrains Mono', monospace; font-size: 12px;
  color: var(--ka-muted);
  vertical-align: middle;
  user-select: none;
}
.ka-btn-href-empty { color: #ff6b6b; opacity: .8; }

/* ---- Popup button (с поп-апом) on canvas ---- */
.ka-popup-open-btn {
  display: inline-block; margin-left: 10px; vertical-align: middle;
  background: var(--ka-surface-2); border: 1px dashed var(--ka-accent); color: var(--ka-accent);
  padding: 6px 12px; border-radius: 6px; cursor: pointer;
  font-size: 12px; font-weight: 500; font-family: inherit;
  transition: all .15s;
}
.ka-popup-open-btn:hover { background: var(--ka-accent); color: #fff; }

/* ---- Popup editor overlay ---- */
.ka-popup-editor {
  position: fixed; top: 54px; left: 240px; right: 280px; bottom: 0;
  z-index: 8500;
  display: flex; align-items: stretch; justify-content: center;
  background: rgba(0,0,0,.65); backdrop-filter: blur(6px);
  animation: ka-fade .2s ease-out;
}
@media (max-width: 980px) {
  .ka-popup-editor { left: 0; right: 0; }
}
.ka-popup-editor-inner {
  display: flex; flex-direction: column;
  width: 100%; max-width: 1100px; margin: 20px;
  background: var(--ka-surface); border: 1px solid var(--ka-border);
  border-radius: 14px; overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,.6);
}
.ka-popup-editor-header {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 18px; border-bottom: 1px solid var(--ka-border);
  background: var(--ka-surface-2);
}
.ka-popup-editor-header strong { font-size: 14px; }
.ka-popup-tabs { flex: 1; display: flex; gap: 4px; justify-content: center; flex-wrap: wrap; }
.ka-popup-tabs button {
  padding: 7px 12px; border-radius: 8px; border: 1px solid var(--ka-border);
  background: var(--ka-surface); color: var(--ka-muted);
  cursor: pointer; font: inherit; font-size: 13px; font-weight: 500;
  transition: all .15s;
}
.ka-popup-tabs button:hover { color: var(--ka-text); border-color: var(--ka-accent); }
.ka-popup-tabs button.active { background: var(--ka-accent); border-color: var(--ka-accent); color: #fff; }

.ka-popup-editor-body {
  display: grid; grid-template-columns: 400px 1fr;
  flex: 1; min-height: 0;
}
@media (max-width: 820px) { .ka-popup-editor-body { grid-template-columns: 1fr; } }

.ka-popup-panel {
  overflow-y: auto; padding: 18px; border-right: 1px solid var(--ka-border);
  display: flex; flex-direction: column; gap: 10px;
}
.ka-popup-panel label {
  display: block; font-size: 12px; color: var(--ka-muted);
  text-transform: uppercase; letter-spacing: .04em; margin-top: 8px;
}
.ka-popup-panel label:first-child { margin-top: 0; }
.ka-popup-panel input[type="text"],
.ka-popup-panel input[type="url"],
.ka-popup-panel input[type="email"],
.ka-popup-panel input[type="tel"],
.ka-popup-panel textarea,
.ka-popup-panel select {
  width: 100%; margin-top: 4px;
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 8px;
  padding: 8px 10px; color: var(--ka-text); font: inherit;
}
.ka-popup-panel textarea { resize: vertical; }
.ka-popup-fields-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--ka-border);
}
.ka-popup-field-row {
  display: grid; grid-template-columns: 1fr 110px auto auto; gap: 6px; align-items: center;
}
.ka-popup-field-row input[type="text"], .ka-popup-field-row select { margin-top: 0; }
.ka-req-check {
  display: flex; align-items: center; gap: 2px;
  font-size: 12px; color: var(--ka-muted); text-transform: none !important;
  letter-spacing: 0 !important; margin: 0 !important; user-select: none;
}
.ka-req-check input { width: auto !important; margin: 0 !important; }
.ka-icon-btn {
  width: 30px; height: 30px; padding: 0; border-radius: 6px;
  background: transparent; border: 1px solid var(--ka-border);
  color: var(--ka-muted); cursor: pointer; font-size: 12px;
}
.ka-icon-btn:hover { color: #ff6b6b; border-color: #ff6b6b; }

.ka-popup-preview-wrap {
  overflow-y: auto; padding: 30px;
  display: flex; flex-direction: column; align-items: center;
  background: #07070c;
}
.ka-popup-preview-label {
  font-size: 11px; color: var(--ka-muted); margin-bottom: 14px;
  text-transform: uppercase; letter-spacing: .06em; align-self: flex-start;
}
.ka-popup-preview { width: 100%; max-width: 460px; }
.ka-preview-modal {
  background: var(--ka-surface); border: 1px solid var(--ka-border);
  border-radius: 14px; padding: 28px;
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.ka-preview-input {
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 8px;
  padding: 10px 12px; color: var(--ka-text); font: inherit;
}
.ka-preview-input:focus { outline: 2px solid var(--ka-accent); outline-offset: 1px; }

/* ---- FAQ accordion in editor ---- */
.ka-faq-wrap {
  display: flex; flex-direction: column; gap: 6px;
  margin: 4px 0;
}
.ka-faq-item {
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 10px;
  padding: 0; overflow: hidden;
}
.ka-faq-item[open] { border-color: var(--ka-accent); }
.ka-faq-summary {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  position: relative;
}
.ka-faq-summary::-webkit-details-marker { display: none; }
.ka-faq-summary::marker { display: none; content: ''; }
.ka-faq-chevron {
  color: var(--ka-muted); font-size: 14px;
  transition: transform .15s;
  width: 14px; flex-shrink: 0;
}
.ka-faq-item[open] .ka-faq-chevron { transform: rotate(90deg); color: var(--ka-accent); }
.ka-faq-q {
  flex: 1; font-weight: 600; font-size: 15px;
  outline: none; cursor: text; min-width: 0;
}
.ka-faq-q:focus {
  background: rgba(124,92,255,.08);
  border-radius: 4px;
  padding: 2px 6px; margin: -2px -6px;
}
.ka-faq-a {
  padding: 0 14px 14px 38px;
  color: var(--ka-muted); font-size: 14px; line-height: 1.6;
  outline: none;
  cursor: text;
}
.ka-faq-a:focus {
  background: rgba(124,92,255,.05);
  border-radius: 4px;
  padding: 2px 8px 10px 38px;
}
.ka-faq-remove {
  background: transparent; border: 0; color: var(--ka-muted);
  cursor: pointer; font-size: 14px;
  padding: 4px 6px; border-radius: 4px;
  opacity: 0; transition: opacity .15s;
}
.ka-faq-item:hover .ka-faq-remove { opacity: .6; }
.ka-faq-remove:hover { opacity: 1 !important; color: #ff6b6b; background: var(--ka-surface); }
.ka-faq-add {
  margin-top: 4px;
  background: transparent;
  border: 1px dashed var(--ka-border);
  border-radius: 10px;
  padding: 10px;
  color: var(--ka-muted);
  cursor: pointer;
  font: inherit; font-size: 13px; font-weight: 500;
  transition: all .15s;
}
.ka-faq-add:hover {
  border-color: var(--ka-accent);
  color: var(--ka-accent);
  background: rgba(124,92,255,.05);
}

/* ---- Link popover ---- */
.ka-link-popover {
  position: fixed; z-index: 10000;
  min-width: 320px; max-width: 400px;
  background: var(--ka-surface); border: 1px solid var(--ka-border);
  border-radius: 10px; padding: 12px;
  box-shadow: 0 16px 40px rgba(0,0,0,.5), 0 2px 8px rgba(0,0,0,.3);
  display: flex; flex-direction: column; gap: 8px;
  animation: ka-fade .15s ease-out;
}
.ka-link-row { display: flex; gap: 6px; align-items: center; }
.ka-link-popover input[type="url"],
.ka-link-popover select {
  flex: 1; min-width: 0;
  background: var(--ka-surface-2); border: 1px solid var(--ka-border); border-radius: 8px;
  padding: 8px 10px; color: var(--ka-text); font: inherit; font-size: 13px;
}
.ka-link-popover input[type="url"] { font-family: 'JetBrains Mono', monospace; }
.ka-link-popover input[type="url"]:focus,
.ka-link-popover select:focus { outline: 2px solid var(--ka-accent); outline-offset: 1px; }
.ka-link-actions { justify-content: flex-end; }
.ka-link-actions .ka-btn, .ka-link-actions .ka-btn-ghost {
  padding: 7px 12px; font-size: 13px;
}
.ka-link-check {
  margin-right: auto; display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--ka-muted);
  cursor: pointer; user-select: none;
}
.ka-link-check input { margin: 0; }

/* Визуально выделяем ссылки внутри editable */
[data-ka-edit] a {
  color: var(--ka-accent);
  text-decoration: underline;
  text-decoration-color: rgba(124,92,255,.4);
  text-underline-offset: 2px;
}
[data-ka-edit] a[target="_blank"]::after {
  content: "↗"; font-size: .85em; margin-left: 2px; opacity: .6;
}

/* ---- HTML block ---- */
.ka-html-empty {
  display: grid; place-items: center; gap: 6px;
  padding: 36px 20px; min-height: 140px;
  background: rgba(124,92,255,.04);
  border: 2px dashed var(--ka-border);
  border-radius: 12px;
  color: var(--ka-muted);
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.ka-html-empty:hover { border-color: var(--ka-accent); color: var(--ka-text); }
.ka-html-empty .ka-img-ico { font-size: 28px; font-family: 'JetBrains Mono', monospace; }
.ka-html-empty small { font-size: 12px; }

.ka-html-block {
  position: relative;
  cursor: pointer;
  border-radius: 10px;
  transition: outline .15s;
}
.ka-html-block:hover { outline: 2px solid rgba(124,92,255,.3); outline-offset: 2px; }
.ka-canvas-block.selected .ka-html-block { outline: 2px solid var(--ka-accent); outline-offset: 2px; }
.ka-canvas-block img[data-ka-img-slot] { cursor: pointer; transition: outline .15s; }
.ka-canvas-block img[data-ka-img-slot]:hover { outline: 2px solid var(--ka-accent); outline-offset: 2px; }
.ka-canvas-block.selected img[data-ka-img-slot] { outline: 2px solid var(--ka-accent); outline-offset: 2px; }

/* ======================================================================
   СВЕТЛАЯ ТЕМА ИНТЕРФЕЙСА (append-слой, побеждает каскадом)
   ====================================================================== */
:root {
  --ka-bg: #f4f5f9;
  --ka-surface: #ffffff;
  --ka-surface-2: #eef0f6;
  --ka-border: #dde1ea;
  --ka-text: #1c1e26;
  --ka-muted: #667085;
  --ka-accent: #6d5ae6;
  --ka-accent-2: #00a884;
  --ka-warn: #b97a08;
  --ka-shadow: 0 20px 60px rgba(109, 90, 230, 0.12), 0 2px 8px rgba(30,34,52,.08);
}
.ka-topbar { background: rgba(255,255,255,.88); }
.ka-hero-preview .floaty { box-shadow: 0 8px 20px rgba(30,34,52,.12); }
.ka-rail-item:hover { box-shadow: 0 4px 16px rgba(30,34,52,.14); }
.ka-block-action,
.ka-rail-handle { background: #eef0f6; border-color: #dde1ea; color: #4a4f60; }
.ka-canvas-block.ka-dragging { box-shadow: 0 8px 24px rgba(30,34,52,.18); }
/* светлая тема: подложка канвы и попап-редактора */
.ka-canvas { background: #e9ebf2; }
.ka-popup-editor-canvas, .ka-popup-preview-area { background: #e9ebf2 !important; }
.ka-popup-preview-wrap { background: #e9ebf2; }