:root {
  --bg: #f1f5f9;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --text: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --primary: #0f172a;
  --primary-text: #ffffff;
  --web-accent: #ffffff;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.05);
  --container: 1120px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

.container {
  width: min(var(--container), calc(100% - 2rem));
  margin: 1.1rem auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1.4rem;
}

.hero h1 { margin: 0.35rem 0 0; font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.1; width: fit-content; }
.hero-minute-line { display: block; text-align: left; }
.eyebrow { margin: 0; color: var(--muted); font-size: 0.85rem; }
.lead { margin: 0.8rem 0 0; color: var(--muted); max-width: 64ch; }
.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.hero-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
#lang-toggle {
  min-width: 38px;
  height: 34px;
  padding: 0 0.6rem;
  border-radius: 9px;
  font-size: 0.83rem;
  line-height: 1;
}
#theme-toggle,
.btn-theme-footer#theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  width: 38px;
  height: 38px;
  padding: 0;
  line-height: 0;
  border-radius: 10px;
}
.theme-icon {
  display: block;
  flex-shrink: 0;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 11px;
  padding: 0.72rem 1.05rem;
  border: 1px solid transparent;
  transition: transform 0.12s ease, opacity 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { transform: translateY(-1px); opacity: 0.96; box-shadow: 0 8px 16px rgba(15, 23, 42, 0.08); }

.btn-primary { background: var(--primary); color: var(--primary-text); }
.btn-secondary { background: var(--bg); color: var(--text); border-color: var(--line); }
.btn-web { background: var(--web-accent); color: var(--text); border-color: #94a3b8; }

.trust-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.8rem; }
.trust-strip p { margin: 0; padding: 0.6rem; background: var(--bg); border-radius: 8px; text-align: center; font-size: 0.95rem; }

.section h2, .final-cta h2 { margin: 0 0 0.75rem; font-size: clamp(1.35rem, 3vw, 2rem); }
.section-head p, .final-cta p { margin: 0 0 0.8rem; color: var(--muted); }
.section { padding-top: 1.6rem; padding-bottom: 1.6rem; }

.grid { display: grid; gap: 0.8rem; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  border: 1px solid var(--line);
  background: var(--surface-soft);
  border-radius: var(--radius-sm);
  padding: 1rem;
  transition: border-color 0.12s ease, transform 0.12s ease;
}
.card:hover { border-color: #cbd5e1; transform: translateY(-1px); }
.card h3 { margin: 0; font-size: 1.05rem; }
.card p { margin: 0.5rem 0 0; color: var(--muted); }

.plan { position: relative; }
.plan-price-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  row-gap: 0.25rem;
}
.plan .plan-price-row .price {
  margin: 0;
}
.price {
  color: #0b1f4f !important;
  background: #eaf0ff;
  border: 1px solid #d2ddfb;
  border-radius: 10px;
  padding: 0.2rem 0.5rem;
  font-weight: 800;
  font-size: 1.36rem;
  line-height: 1.15;
}
.price-note {
  margin: 0;
  color: #334155 !important;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  display: inline-block;
  padding: 0.18rem 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  flex-shrink: 0;
  line-height: 1.2;
}
.plan ul { margin: 0.65rem 0 0; padding-left: 1rem; color: var(--muted); min-height: 115px; }
.plan-actions { display: grid; gap: 0.5rem; margin-top: 0.9rem; }

.plan-popular { border-color: #cbd5e1; background: #eef2ff; box-shadow: inset 0 0 0 1px #c7d2fe; }
.badge {
  position: absolute;
  right: 0.75rem;
  top: 0.75rem;
  font-size: 0.75rem;
  padding: 0.15rem 0.45rem;
  border-radius: 99px;
  background: var(--primary);
  color: var(--primary-text);
}

.faq-list { display: grid; gap: 0.5rem; }
.faq-kb-teaser {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.faq-kb-teaser a {
  color: #1d4ed8;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid #93c5fd;
}
details { border: 1px solid var(--line); border-radius: 10px; background: var(--bg); padding: 0.7rem 0.9rem; }
summary { cursor: pointer; font-weight: 600; }

.resources nav { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.resources a { color: var(--text); text-decoration: none; border-bottom: 1px solid #cbd5e1; }

.final-cta { background: var(--primary); color: var(--primary-text); }
.final-cta p { color: #e2e8f0; }
.final-cta .btn-primary {
  background: #ffffff;
  color: #0f172a;
  border-color: #ffffff;
}
.final-cta .btn-web { background: transparent; border-color: #cbd5e1; color: #ffffff; }

.site-footer {
  margin-bottom: 1.25rem;
}

.site-footer h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.site-footer p {
  margin: 0.2rem 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.footer-controls {
  margin-top: 0.6rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.btn-footer-control {
  min-width: 36px;
  height: 32px;
  padding: 0 0.55rem;
  border-radius: 8px;
  font-size: 0.78rem;
}
.btn-theme-footer {
  min-width: 32px;
  padding: 0;
  background: #0f172a;
  color: #ffffff;
  border-color: #0f172a;
}

.site-footer a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid #cbd5e1;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.policy-page .container {
  max-width: 980px;
}

.policy-content h1 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
}

.policy-content h2 {
  margin-top: 1.4rem;
  margin-bottom: 0.55rem;
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
}

.policy-content h3 {
  margin-top: 1rem;
  margin-bottom: 0.35rem;
  font-size: 1.03rem;
}

.policy-content p {
  margin: 0.32rem 0;
  color: var(--muted);
}

/* Knowledge base (/kb/) — blog-style layout (article + sidebar) */
.kb-blog-page {
  --kb-link: #2563eb;
  --kb-link-hover: #1d4ed8;
  --kb-border-soft: rgba(23, 56, 126, 0.12);
  --kb-shell-tint: rgba(29, 78, 216, 0.055);
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
}

.kb-blog-shell {
  background: linear-gradient(180deg, var(--kb-shell-tint) 0%, var(--bg) 420px);
  padding: 1.75rem 0 2.75rem;
}

.kb-blog-container {
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto;
  overflow-x: hidden;
}

.kb-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0.35rem;
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
  line-height: 1.35;
  color: var(--muted);
}

.kb-breadcrumbs a {
  color: var(--muted);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.kb-breadcrumbs a:hover {
  color: var(--kb-link);
  border-bottom-color: rgba(37, 99, 235, 0.35);
}

.kb-bc-sep {
  opacity: 0.45;
  user-select: none;
}

.kb-blog-main {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

.kb-article-card {
  flex: 1;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.kb-article-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--kb-border-soft);
}

.kb-article-topbar-brand {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 0.875rem;
  line-height: 1.25;
}

.kb-article-brand {
  font-weight: 700;
  color: var(--text);
}

.kb-article-pipe {
  color: var(--muted);
  opacity: 0.55;
}

.kb-article-series {
  color: var(--muted);
  font-weight: 500;
}

.kb-article-topbar-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.kb-topbar-btn {
  font-size: 0.84rem;
  padding: 0.5rem 0.85rem;
}

.kb-icon-btn {
  min-width: 38px;
  height: 34px;
  padding: 0 0.6rem;
  border-radius: 9px;
  font-size: 0.83rem;
  line-height: 1;
}

.kb-blog-page #theme-toggle.kb-icon-btn {
  width: 38px;
  height: 38px;
  padding: 0;
}

.kb-article-sheet {
  background: var(--surface);
}

.kb-article-inner {
  padding: 1.75rem 1.75rem 2.25rem;
  overflow-wrap: break-word;
  word-break: break-word;
  min-width: 0;
}

.kb-article-head {
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 1.5rem;
}

.kb-article-head h1 {
  margin: 0;
  font-size: clamp(1.55rem, 2.8vw, 1.85rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--text);
}

.kb-article-dek {
  margin: 0.7rem 0 0;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--muted);
}

.kb-toc-mobile {
  display: none;
  margin: 0 0 1.5rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  overflow: hidden;
}

.kb-toc-mobile > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  border-bottom: 1px solid transparent;
  user-select: none;
}

.kb-toc-mobile > summary::-webkit-details-marker,
.kb-toc-mobile > summary::marker {
  display: none;
  content: none;
}

.kb-toc-mobile > summary::after {
  content: "";
  flex-shrink: 0;
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
  margin-bottom: 0.2rem;
}

.kb-toc-mobile[open] > summary::after {
  transform: rotate(-135deg);
  margin-bottom: -0.2rem;
}

.kb-toc-mobile[open] summary {
  color: var(--text);
  border-bottom-color: var(--kb-border-soft);
}

.kb-toc-mobile[open] {
  padding-bottom: 0.35rem;
}

.kb-toc-mobile-list {
  list-style: none;
  margin: 0;
  padding: 0.35rem 0.85rem 0.65rem;
}

.kb-toc-mobile-list li {
  margin: 0.35rem 0;
}

.kb-toc-mobile-list a {
  font-size: 0.875rem;
  line-height: 1.35;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
}

.kb-toc-mobile-list a:hover {
  color: var(--kb-link);
}

.kb-sidebar {
  width: 280px;
  flex-shrink: 0;
}

.kb-sidebar-card {
  position: sticky;
  top: 1.25rem;
  padding: 1rem 1.1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-soft);
}

.kb-sidebar-title {
  margin: 0 0 0.65rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.kb-sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.kb-sidebar-list li {
  margin: 0;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--kb-border-soft);
}

.kb-sidebar-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.kb-sidebar-list a {
  display: block;
  font-size: 0.875rem;
  line-height: 1.38;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: color 0.15s ease;
}

.kb-sidebar-list a:hover {
  color: var(--kb-link);
}

.kb-article-stream {
  margin-top: 0;
}

.kb-stream-section {
  scroll-margin-top: 5rem;
  padding-bottom: 0.25rem;
}

.kb-stream-section + .kb-stream-section {
  margin-top: 0.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.kb-stream-section h2 {
  margin: 0 0 0.85rem;
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
}

.kb-stream-section p {
  margin: 0.5rem 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.kb-stream-section > p:first-of-type {
  margin-top: 0;
}

.kb-article-stream ul,
.kb-article-stream ol {
  margin: 0.55rem 0 0;
  padding-left: 1.35rem;
  color: var(--muted);
  line-height: 1.6;
}

.kb-article-stream li {
  margin: 0.4rem 0;
}

.kb-steps {
  list-style: decimal;
}

.kb-blog-page .kb-article-stream a:not(.btn) {
  color: var(--kb-link);
  font-weight: 500;
  text-decoration: none;
}

.kb-blog-page .kb-article-stream a:not(.btn):hover {
  color: var(--kb-link-hover);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.kb-stream-cta {
  padding: 1.35rem 1.5rem;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(99, 102, 241, 0.05) 100%);
  border: 1px solid rgba(37, 99, 235, 0.18);
}

.kb-stream-cta h2 {
  margin-top: 0;
}

.kb-bot-line {
  margin: 0.75rem 0 0;
}

.kb-cta-bot {
  margin-top: 0;
}

.kb-footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 1023px) {
  .kb-sidebar {
    display: none;
  }
  .kb-toc-mobile {
    display: block;
  }
  .kb-blog-main {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .kb-blog-container {
    width: calc(100% - 1.25rem);
  }
  .kb-article-inner {
    padding-inline: 1rem;
  }
  .kb-article-topbar {
    padding-inline: 1rem;
  }
}

:root[data-theme="dark"] {
  --bg: #000000;
  --surface: #0a0a0a;
  --surface-soft: #111111;
  --surface-raised: #161616;
  --text: #f5f5f5;
  --muted: #a3a3a3;
  --line: rgba(255, 255, 255, 0.1);
  --primary: #f5f5f5;
  --primary-text: #000000;
  --accent: #ffffff;
  --accent-hover: #e5e5e5;
  --web-accent: #111111;
  --shadow-soft: none;
  color-scheme: dark;
}

:root[data-theme="dark"] body {
  background: var(--bg);
}

/* Один спокойный «лист» вместо кучи отдельных коробок */
:root[data-theme="dark"] .container {
  background: var(--surface);
  border-color: var(--line);
  box-shadow: none;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

:root[data-theme="dark"] .hero.container {
  background: var(--surface);
  border-color: var(--line);
}

:root[data-theme="dark"] .trust-strip p {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  color: var(--text);
}

:root[data-theme="dark"] .card {
  background: var(--surface-soft);
  border-color: var(--line);
  box-shadow: none;
}

:root[data-theme="dark"] .card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  transform: none;
}

:root[data-theme="dark"] .plan-popular {
  background: #111111;
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: none;
}

:root[data-theme="dark"] .price {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent) !important;
  font-size: 1.45rem;
}

:root[data-theme="dark"] .price-note {
  background: var(--surface-raised);
  border-color: var(--line);
  color: var(--muted) !important;
}

:root[data-theme="dark"] .badge {
  background: #ffffff;
  color: #000000;
  font-weight: 700;
}

:root[data-theme="dark"] details {
  background: var(--surface-soft);
  border-color: var(--line);
}

:root[data-theme="dark"] details p {
  color: var(--muted);
}

:root[data-theme="dark"] .faq-kb-teaser a,
:root[data-theme="dark"] .faq-list a {
  color: #ffffff;
  border-bottom-color: rgba(255, 255, 255, 0.45);
}

:root[data-theme="dark"] .final-cta {
  background: #0a0a0a;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
}

:root[data-theme="dark"] .final-cta h2 {
  color: var(--text);
}

:root[data-theme="dark"] .final-cta p {
  color: var(--muted);
}

:root[data-theme="dark"] .final-cta .btn-primary {
  background: #ffffff;
  color: #0b1220;
  border-color: #ffffff;
}

:root[data-theme="dark"] .btn-primary {
  background: #ffffff;
  color: #000000;
  border-color: #ffffff;
}

:root[data-theme="dark"] .btn-secondary,
:root[data-theme="dark"] .btn-web {
  background: var(--surface-soft);
  color: var(--text);
  border-color: var(--line);
}

:root[data-theme="dark"] .btn-theme-footer,
:root[data-theme="dark"] #theme-toggle.btn-theme-footer {
  background: var(--surface-raised);
  color: var(--text);
  border-color: var(--line);
}

:root[data-theme="dark"] #theme-toggle:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
  background: #161616;
}

:root[data-theme="dark"] .btn:hover {
  box-shadow: none;
  opacity: 0.92;
}

:root[data-theme="dark"] .site-footer a,
:root[data-theme="dark"] .resources a {
  color: #ffffff;
  border-bottom-color: rgba(255, 255, 255, 0.35);
}

:root[data-theme="dark"] .site-footer h3 {
  color: var(--text);
}

:root[data-theme="dark"] .kb-blog-page {
  --kb-link: var(--accent);
  --kb-link-hover: var(--accent-hover);
  --kb-border-soft: var(--line);
  --kb-shell-tint: transparent;
}

:root[data-theme="dark"] .kb-article-card,
:root[data-theme="dark"] .kb-sidebar-card,
:root[data-theme="dark"] .kb-toc-mobile {
  background: var(--surface-soft);
  border-color: var(--line);
  box-shadow: none;
}

:root[data-theme="dark"] .kb-article-head,
:root[data-theme="dark"] .kb-stream-section + .kb-stream-section,
:root[data-theme="dark"] .kb-footer-actions,
:root[data-theme="dark"] .kb-article-topbar {
  border-color: var(--line);
}

:root[data-theme="dark"] .kb-breadcrumbs a:hover,
:root[data-theme="dark"] .kb-sidebar-list a:hover,
:root[data-theme="dark"] .kb-toc-mobile-list a:hover,
:root[data-theme="dark"] .kb-blog-page .kb-article-stream a:not(.btn) {
  color: var(--accent);
}

:root[data-theme="dark"] .kb-blog-page .kb-article-stream a:not(.btn):hover {
  color: var(--accent-hover);
}

:root[data-theme="dark"] .kb-stream-cta {
  background: #111111;
  border-color: var(--line);
}

.cookie-consent {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 9999;
  padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
  background: var(--surface);
  border-top: 1px solid var(--line);
  box-shadow: 0 -8px 32px rgba(15, 23, 42, 0.12);
  transform: translateY(110%);
  opacity: 0;
  transition: transform 0.28s ease, opacity 0.28s ease;
}
.cookie-consent--visible {
  transform: translateY(0);
  opacity: 1;
}
.cookie-consent--hidden {
  transform: translateY(110%);
  opacity: 0;
}
.cookie-consent__inner {
  width: min(var(--container), calc(100% - 0.5rem));
  margin: 0 auto;
}
.cookie-consent__text {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.5;
}
.cookie-consent__text a {
  color: var(--text);
  font-weight: 600;
}
.cookie-consent__btn {
  display: inline-block;
  margin: 0 0 0 0.2rem;
  padding: 0.12rem 0.5rem;
  border: none;
  border-radius: 6px;
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--primary-text);
  background: var(--primary);
  cursor: pointer;
  white-space: nowrap;
  vertical-align: baseline;
  transition: opacity 0.12s ease;
}
.cookie-consent__btn:hover {
  opacity: 0.88;
}
:root[data-theme="dark"] .cookie-consent {
  background: var(--surface);
  border-top-color: var(--line);
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.35);
}
:root[data-theme="dark"] .cookie-consent__text a {
  color: #ffffff;
}
:root[data-theme="dark"] .cookie-consent__btn {
  background: #ffffff;
  color: #000000;
}

@media (max-width: 960px) {
  .grid.three, .grid.four, .trust-strip { grid-template-columns: 1fr; }
  .container { width: min(var(--container), calc(100% - 1rem)); margin: 0.55rem auto; padding: 1.1rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-top { align-items: flex-start; }
  .hero h1 { width: auto; }
}