/* =========================================================================
   EcoLeadBot — styles
   Все стили виджета изолированы префиксом .ecoleadbot- (Frontend Spec §42).
   Стиль: clean / modern B2B, спокойные цвета, контрастные CTA (UX §19).
   Mobile-first (UX §16).
   ========================================================================= */

/* -------------------------------------------------------------------------
   Демо-страница-хост (не часть виджета)
   ------------------------------------------------------------------------- */
* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #1f2933;
  background: #f5f7fa;
  line-height: 1.6;
}

.site-header {
  background: #ffffff;
  border-bottom: 1px solid #e4e9f0;
}
.site-header__inner,
.site-footer__inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-logo { font-weight: 700; color: #2f855a; }
.site-nav a { margin-left: 16px; color: #52606d; text-decoration: none; font-size: 14px; }
.site-nav a:hover { color: #2f855a; }

.site-main { max-width: 820px; margin: 0 auto; padding: 32px 20px 80px; }
.article-content h1 { font-size: 28px; line-height: 1.25; margin: 0 0 16px; }
.article-content h2 { font-size: 21px; margin: 32px 0 12px; }
.article-lead { font-size: 18px; color: #3e4c59; }
.article-content p { margin: 0 0 16px; }

.site-footer { background: #ffffff; border-top: 1px solid #e4e9f0; }
.site-footer__inner { font-size: 13px; color: #7b8794; }
.site-footer__inner a { color: #7b8794; }

/* =========================================================================
   ПЕРЕМЕННЫЕ ВИДЖЕТА
   ========================================================================= */
.ecoleadbot-root {
  --eco-primary: #2f855a;
  --eco-primary-hover: #276749;
  --eco-accent: #dd6b20;
  --eco-accent-hover: #c05621;
  --eco-text: #1f2933;
  --eco-text-muted: #6b7785;
  --eco-border: #d9e2ec;
  --eco-bg: #ffffff;
  --eco-bg-soft: #f0f4f8;
  --eco-overlay: rgba(15, 30, 25, 0.55);
  --eco-radius: 14px;
  --eco-radius-sm: 10px;
  --eco-shadow: 0 18px 50px rgba(15, 30, 25, 0.22);
  --eco-transition: 200ms ease;

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--eco-text);
  line-height: 1.5;
}

.ecoleadbot-root *,
.ecoleadbot-root *::before,
.ecoleadbot-root *::after { box-sizing: border-box; }

.ecoleadbot-hidden { display: none !important; }

/* =========================================================================
   FLOATING WIDGET (UX §4.1 / Frontend §8)
   ========================================================================= */
.ecoleadbot-widget {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 2147483000;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 280px;
  padding: 14px 18px;
  border: none;
  border-radius: 999px;
  background: var(--eco-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--eco-shadow);
  transition: transform var(--eco-transition), background var(--eco-transition);
}
.ecoleadbot-widget:hover { background: var(--eco-primary-hover); transform: translateY(-2px); }
.ecoleadbot-widget__logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fff;
  flex-shrink: 0;
}
.ecoleadbot-widget__logo {
  display: block;
  width: 22px;
  height: 22px;
  object-fit: contain;
}
.ecoleadbot-widget__label { line-height: 1.25; text-align: left; }

/* =========================================================================
   INLINE CTA (UX §4.2 / Frontend §11)
   ========================================================================= */
.ecoleadbot-inline-cta {
  margin: 28px 0;
  padding: 20px 22px;
  border: 1px solid var(--eco-border);
  border-left: 4px solid var(--eco-accent);
  border-radius: var(--eco-radius);
  background: var(--eco-bg);
  box-shadow: 0 6px 18px rgba(15, 30, 25, 0.06);
}
.ecoleadbot-inline-cta__title { font-weight: 700; margin: 0 0 8px; font-size: 17px; }
.ecoleadbot-inline-cta__list { margin: 0 0 16px; padding-left: 18px; color: var(--eco-text-muted); }
.ecoleadbot-inline-cta__list li { margin: 2px 0; }
.ecoleadbot-inline-cta__btn {
  display: inline-block;
  padding: 12px 22px;
  border: none;
  border-radius: var(--eco-radius-sm);
  background: var(--eco-accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--eco-transition);
}
.ecoleadbot-inline-cta__btn:hover { background: var(--eco-accent-hover); }

/* =========================================================================
   POPUP CONTAINER (UX §5 / Frontend §10)
   Desktop: centered popup + backdrop. Mobile: fullscreen overlay.
   ========================================================================= */
.ecoleadbot-overlay {
  position: fixed;
  inset: 0;
  z-index: 2147483600;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--eco-overlay);
  opacity: 0;
  transition: opacity var(--eco-transition);
}
.ecoleadbot-overlay.is-visible { opacity: 1; }

.ecoleadbot-popup {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 480px;
  max-height: calc(100vh - 48px);
  background: var(--eco-bg);
  border-radius: var(--eco-radius);
  box-shadow: var(--eco-shadow);
  overflow: hidden;
  transform: translateY(12px);
  transition: transform var(--eco-transition);
}
.ecoleadbot-overlay.is-visible .ecoleadbot-popup { transform: translateY(0); }

.ecoleadbot-close {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  color: var(--eco-text);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  transition: background var(--eco-transition);
}
.ecoleadbot-close:hover { background: var(--eco-bg-soft); }

.ecoleadbot-header {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  padding: 12px 48px 0 16px;
  min-height: 44px;
}
.ecoleadbot-header__logo {
  display: block;
  height: 36px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
}

/* Progress bar (UX §8) */
.ecoleadbot-progress {
  flex: 0 0 auto;
  padding: 18px 24px 0;
}
.ecoleadbot-progress__track {
  height: 6px;
  border-radius: 999px;
  background: var(--eco-bg-soft);
  overflow: hidden;
}
.ecoleadbot-progress__fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--eco-primary);
  transition: width var(--eco-transition);
}
.ecoleadbot-progress__meta {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 12px;
  color: var(--eco-text-muted);
}

/* Scrollable screen area */
.ecoleadbot-body {
  flex: 1 1 auto;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 22px 24px 24px;
}

.ecoleadbot-screen { animation: ecoleadbot-fade 200ms ease; }
@keyframes ecoleadbot-fade {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.ecoleadbot-title { font-size: 21px; font-weight: 700; margin: 0 0 8px; }
.ecoleadbot-subtitle { font-size: 15px; color: var(--eco-text-muted); margin: 0 0 18px; }
.ecoleadbot-hint { font-size: 13px; color: var(--eco-text-muted); margin: 6px 0 0; }

/* Card-buttons (UX §3) */
.ecoleadbot-options { display: flex; flex-direction: column; gap: 10px; margin: 0 0 16px; }
.ecoleadbot-card {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 15px 16px;
  border: 1px solid var(--eco-border);
  border-radius: var(--eco-radius-sm);
  background: var(--eco-bg);
  color: var(--eco-text);
  font-size: 16px;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--eco-transition), background var(--eco-transition), box-shadow var(--eco-transition);
}
.ecoleadbot-card:hover { border-color: var(--eco-primary); background: var(--eco-bg-soft); }
.ecoleadbot-card.is-selected {
  border-color: var(--eco-primary);
  background: #ebf7f0;
  box-shadow: inset 0 0 0 1px var(--eco-primary);
}
.ecoleadbot-card__check {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 2px solid var(--eco-border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #fff;
}
.ecoleadbot-card.is-selected .ecoleadbot-card__check {
  background: var(--eco-primary);
  border-color: var(--eco-primary);
}

/* Buttons */
.ecoleadbot-actions { display: flex; gap: 10px; margin-top: 8px; }
.ecoleadbot-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 20px;
  border: none;
  border-radius: var(--eco-radius-sm);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--eco-transition), opacity var(--eco-transition);
}
.ecoleadbot-btn--primary { background: var(--eco-accent); color: #fff; flex: 1 1 auto; }
.ecoleadbot-btn--primary:hover { background: var(--eco-accent-hover); }
.ecoleadbot-btn--secondary { background: var(--eco-bg-soft); color: var(--eco-text); }
.ecoleadbot-btn--secondary:hover { background: #e2e9f0; }
.ecoleadbot-btn--ghost { background: transparent; color: var(--eco-primary); padding: 10px 14px; }
.ecoleadbot-btn--block { width: 100%; }
.ecoleadbot-btn:disabled { opacity: 0.55; cursor: not-allowed; }

.ecoleadbot-back {
  background: none;
  border: none;
  color: var(--eco-text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 6px 0;
  margin-bottom: 6px;
}
.ecoleadbot-back:hover { color: var(--eco-text); }

/* Intro screen */
.ecoleadbot-intro__hint {
  margin: 0 0 16px;
  color: var(--eco-text-muted);
  font-size: 14px;
  line-height: 1.45;
}
.ecoleadbot-intro__list { margin: 0 0 20px; padding-left: 18px; color: var(--eco-text-muted); }
.ecoleadbot-intro__actions { display: flex; flex-direction: column; gap: 10px; }
.ecoleadbot-intro__link-wrap { margin-top: 2px; text-align: center; }
.ecoleadbot-intro__link {
  background: none;
  border: none;
  color: var(--eco-primary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  padding: 8px 4px;
}
.ecoleadbot-intro__link:hover { color: var(--eco-accent); }
.ecoleadbot-question-hint { margin-top: -8px; margin-bottom: 14px; }
.ecoleadbot-clarify-block { margin-bottom: 18px; }
.ecoleadbot-clarify-block__title {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 10px;
  line-height: 1.35;
}
.ecoleadbot-options--compact { gap: 8px; }
.ecoleadbot-card--compact { padding: 12px 14px; }
.ecoleadbot-card__note {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: var(--eco-text-muted);
  margin-top: 4px;
  line-height: 1.35;
}

/* Mini result */
.ecoleadbot-result {
  padding: 16px 18px;
  border-radius: var(--eco-radius-sm);
  background: var(--eco-bg-soft);
  margin-bottom: 18px;
}
.ecoleadbot-result__list { margin: 8px 0 0; padding-left: 18px; }
.ecoleadbot-mini-loading {
  margin: 0;
  font-size: 14px;
  color: var(--eco-text-muted);
}
.ecoleadbot-zone-blocks { display: flex; flex-direction: column; gap: 14px; }
.ecoleadbot-zone-block {
  padding: 14px 16px;
  border-radius: var(--eco-radius-sm);
  background: #fff;
  border: 1px solid var(--eco-border);
}
.ecoleadbot-zone-block__title {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
}
.ecoleadbot-zone-block__body { margin-bottom: 12px; }
.ecoleadbot-zone-block__heading {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
}
.ecoleadbot-zone-block__p {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--eco-text);
}
.ecoleadbot-zone-block__list {
  margin: 0 0 8px;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.45;
}
.ecoleadbot-zone-block__list li { margin: 4px 0; }
.ecoleadbot-zone-block__more { margin-top: 4px; }

/* Document branch — группы услуг НВОС */
.ecoleadbot-service-group__title {
  margin: 16px 0 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--eco-text-muted);
}
.ecoleadbot-service-group__title:first-child { margin-top: 0; }

/* RAG answer */
.ecoleadbot-rag-input { min-height: 120px; }
.ecoleadbot-rag-answer {
  padding: 16px 18px;
  border-radius: var(--eco-radius-sm);
  background: var(--eco-bg-soft);
  margin-bottom: 16px;
  white-space: pre-wrap;
  line-height: 1.5;
  font-size: 15px;
}
.ecoleadbot-rag-sources {
  margin-bottom: 16px;
  padding: 12px 14px;
  border-left: 3px solid var(--eco-primary);
  background: #f8fafc;
  border-radius: 0 var(--eco-radius-sm) var(--eco-radius-sm) 0;
}
.ecoleadbot-rag-sources__title { font-size: 13px; font-weight: 700; margin-bottom: 6px; color: var(--eco-text-muted); }
.ecoleadbot-rag-sources__list { margin: 0; padding-left: 18px; font-size: 14px; color: var(--eco-text-muted); }
.ecoleadbot-rag-sources__list li { margin: 4px 0; }
.ecoleadbot-rag-feedback { margin-top: 4px; margin-bottom: 12px !important; }

/* Contact form */
.ecoleadbot-field { margin-bottom: 14px; }
.ecoleadbot-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.ecoleadbot-label__opt { font-weight: 400; color: var(--eco-text-muted); }
.ecoleadbot-input,
.ecoleadbot-textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--eco-border);
  border-radius: var(--eco-radius-sm);
  font-size: 16px; /* >=16px чтобы iOS не зумил (Accessibility §40) */
  font-family: inherit;
  color: var(--eco-text);
  background: var(--eco-bg);
}
.ecoleadbot-input:focus,
.ecoleadbot-textarea:focus { outline: none; border-color: var(--eco-primary); box-shadow: 0 0 0 3px rgba(47, 133, 90, 0.15); }
.ecoleadbot-textarea { min-height: 80px; resize: vertical; }
.ecoleadbot-input.is-error,
.ecoleadbot-textarea.is-error { border-color: #e53e3e; }

.ecoleadbot-btn.is-error {
  box-shadow: 0 0 0 2px #e53e3e;
}

.ecoleadbot-clarify-block--error {
  border-left: 3px solid #e53e3e;
  padding-left: 12px;
  margin-left: -12px;
}

.ecoleadbot-actions__hint {
  color: #c53030;
  font-size: 13px;
  line-height: 1.35;
  margin: 0 0 10px;
  text-align: center;
}
.ecoleadbot-error { color: #e53e3e; font-size: 13px; margin: 6px 0 0; }

.ecoleadbot-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  cursor: pointer;
  margin: 6px 0 14px;
}
.ecoleadbot-checkbox input { width: 18px; height: 18px; margin-top: 1px; flex: 0 0 auto; }

.ecoleadbot-consent { font-size: 12px; color: var(--eco-text-muted); margin: 14px 0; }

/* Choice chips (preferred contact when do_not_call) */
.ecoleadbot-chips { display: flex; gap: 10px; margin-top: 8px; }
.ecoleadbot-chip {
  flex: 1 1 auto;
  padding: 12px;
  border: 1px solid var(--eco-border);
  border-radius: var(--eco-radius-sm);
  background: var(--eco-bg);
  font-size: 15px;
  cursor: pointer;
  transition: border-color var(--eco-transition), background var(--eco-transition);
}
.ecoleadbot-chip.is-selected { border-color: var(--eco-primary); background: #ebf7f0; }

/* Loading */
.ecoleadbot-loading { text-align: center; padding: 40px 10px; }
.ecoleadbot-spinner {
  width: 44px;
  height: 44px;
  margin: 0 auto 18px;
  border: 4px solid var(--eco-bg-soft);
  border-top-color: var(--eco-primary);
  border-radius: 50%;
  animation: ecoleadbot-spin 800ms linear infinite;
}
@keyframes ecoleadbot-spin { to { transform: rotate(360deg); } }

/* Final / success */
.ecoleadbot-final { text-align: center; }
.ecoleadbot-final__icon {
  width: 64px;
  height: 64px;
  margin: 4px auto 16px;
  border-radius: 50%;
  background: #ebf7f0;
  color: var(--eco-primary);
  font-size: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ecoleadbot-final__media-lead { margin-top: 8px; margin-bottom: 4px; }
.ecoleadbot-media { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 16px; margin-bottom: 8px; }
.ecoleadbot-media a {
  flex: 0 0 auto;
  padding: 10px 16px;
  border: 1px solid var(--eco-border);
  border-radius: 999px;
  font-size: 14px;
  text-decoration: none;
  color: var(--eco-text);
  transition: border-color var(--eco-transition), background var(--eco-transition);
}
.ecoleadbot-media a:hover { border-color: var(--eco-primary); background: var(--eco-bg-soft); }
.ecoleadbot-media__highlight {
  border-color: var(--eco-accent);
  color: var(--eco-accent);
  font-weight: 600;
}

/* Error / empty RAG screens */
.ecoleadbot-state { text-align: center; padding: 20px 6px; }
.ecoleadbot-state__icon { font-size: 40px; margin-bottom: 12px; }
.ecoleadbot-rag-no-answer__question {
  text-align: left;
  margin: 16px 0 4px;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.04);
}
.ecoleadbot-rag-no-answer__label {
  font-size: 12px;
  color: #666;
  margin-bottom: 6px;
}
.ecoleadbot-rag-no-answer__text {
  font-size: 14px;
  line-height: 1.45;
  word-break: break-word;
}

/* =========================================================================
   MOBILE: fullscreen overlay, sticky CTA, vertical layout (UX §16 / Frontend §39)
   ========================================================================= */
@media (max-width: 767px) {
  .ecoleadbot-widget { right: 14px; bottom: 14px; padding: 12px 16px; font-size: 14px; }

  .ecoleadbot-overlay { padding: 0; align-items: stretch; }
  .ecoleadbot-popup {
    max-width: 100%;
    width: 100%;
    height: 100%;
    max-height: 100%;
    border-radius: 0;
    transform: translateY(0);
  }
  .ecoleadbot-title { font-size: 20px; }
  .ecoleadbot-card { padding: 16px; font-size: 16px; }

  /* sticky CTA на мобильных для multi/contact/intro */
  .ecoleadbot-actions--sticky {
    position: sticky;
    bottom: 0;
    margin: 12px -24px -24px;
    padding: 14px 24px calc(14px + env(safe-area-inset-bottom));
    background: var(--eco-bg);
    border-top: 1px solid var(--eco-border);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ecoleadbot-root *, .ecoleadbot-overlay, .ecoleadbot-popup { transition: none !important; animation: none !important; }
}