/* ==========================================================================
   V-Labs — style.css (Строгая B2B-палитра)
   ========================================================================== */

/* ---------- 1. Переменные ---------- */
:root {
  /* Основные цвета (сдвинуты в сторону строгого B2B) */
  --primary: #0f172a;        /* Глубокий графитово-синий для текста */
  --primary-hover: #1e293b;
  --accent: #0d9488;         /* Насыщенный бирюзовый (Teal) для кнопок */
  --accent-hover: #0f766e;   /* Темно-бирюзовый для наведения  */

  /* Текст и фоны */
  --text: #1e293b;
  --muted: #64748b;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-dark: #0f172a;

  /* Границы и тени */
  --border: #e2e8f0;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, .06);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);
  --transition: .25s ease;
}

/* ---------- 2. Сброс и базовая типографика ---------- */
* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

html {
  scroll-behavior: auto;
  scroll-padding-top: 96px;
}

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--primary); }

/* ---------- 3. Общие ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  font-family: inherit;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(13, 148, 136, .25);
}
.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .35);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, .1);
  color: #fff;
  border-color: rgba(255, 255, 255, .6);
}
.btn--lg { padding: 16px 30px; font-size: 16px; }

.section { padding: 96px 0; }
.section--soft { background: var(--bg-soft); }
.section--dark {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: #fff;
}

.section__head { max-width: 760px; margin-bottom: 56px; }
.section__kicker {
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin: 0 0 12px;
}
.section__kicker--light { color: #93c5fd; }
.section__title {
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -.01em;
}
.section__title--light { color: #fff; }
.section__lead { font-size: 17px; color: var(--muted); margin: 0; }
.section--dark .section__lead { color: rgba(255, 255, 255, .75); }

/* ---------- 4. Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 88px;
}

/* Логотип */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
}
.logo-img {
  display: block;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 6px;
}
.logo__text {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--primary);
}
.logo:hover .logo-img {
  transform: scale(1.05);
  transition: transform var(--transition);
}

/* Телефон в шапке */
.header__phone {
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
  padding: 6px 4px;
  transition: color var(--transition);
}
.header__phone:hover { color: var(--accent); }

.nav { display: flex; gap: 28px; }
.nav a { color: var(--text); font-weight: 500; font-size: 15px; }
.nav a:hover { color: var(--primary); }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 0;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  transition: transform var(--transition);
}

/* ---------- 5. Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(37, 99, 235, .25), transparent 60%),
    linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: #fff;
  padding: 120px 0 130px;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse at 60% 40%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse at 60% 40%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero__inner { position: relative; max-width: 900px; }
.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: 13px;
  color: #93c5fd;
  margin: 0 0 18px;
  font-weight: 600;
}
.hero__title {
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.15;
  font-weight: 700;
  margin: 0 0 20px;
  letter-spacing: -.01em;
}
.hero__subtitle {
  font-size: clamp(16px, 1.5vw, 19px);
  color: rgba(255, 255, 255, .85);
  margin: 0 0 36px;
  max-width: 720px;
}
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 6. Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 99, 235, .3);
}
.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(37, 99, 235, .08);
  color: var(--accent);
}
.card__title { font-size: 19px; line-height: 1.35; margin: 0; }
.card__text { margin: 0; color: var(--text); }
.card__meta {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
}
.card__link {
  margin-top: auto;
  font-weight: 600;
  color: var(--accent);
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

/* ---------- 7. Features ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.feature {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 28px 24px;
}
.feature__num {
  font-size: 13px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: .1em;
  margin-bottom: 10px;
}
.feature h3 { margin: 0 0 8px; font-size: 18px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- 8. Lead / Form ---------- */
.lead-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: start;
}
.lead-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.lead-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--muted);
  line-height: 1.5;
}
.lead-list li::before {
  content: "";
  flex-shrink: 0;
  display: block;
  width: 10px;
  height: 10px;
  margin-top: 5px;
  border-radius: 50%;
  background: rgba(37, 99, 235, .1);
  border: 2px solid var(--accent);
  box-sizing: border-box;
}

.form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 18px;
}
.form__row { display: grid; gap: 6px; }
.form__row--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form__row label { font-size: 14px; font-weight: 600; }
.req { color: #e11d48; }

.form input[type="text"],
.form input[type="email"],
.form input[type="tel"],
.form textarea {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}
.form textarea { resize: vertical; min-height: 90px; }

.form__row--check { margin-top: 4px; }
.checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--muted);
  font-weight: 400 !important;
}
.checkbox input { margin-top: 3px; flex-shrink: 0; }

.form__err {
  color: #e11d48;
  font-size: 13px;
  min-height: 0;
}
.form__err:empty { display: none; }

.form__submit { margin-top: 6px; }
.form__status { margin: 0; font-size: 15px; }
.form__status--ok { color: #059669; }
.form__status--err { color: #e11d48; }

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- 9. Contacts ---------- */
.contacts { padding: 96px 0; }
.contacts__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 24px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14);
  color: #fff;
  transition: background var(--transition), border-color var(--transition);
}
.contact:hover {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .3);
  color: #fff;
}
.contact__label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: #93c5fd;
  font-weight: 600;
}
.contact__value { font-size: 17px; font-weight: 500; }

/* ---------- 10. Footer ---------- */
.footer {
  background: #0f172a;
  color: rgba(255, 255, 255, .7);
  padding: 32px 0;
  border-top: 1px solid rgba(255, 255, 255, .06);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer__left .logo__text { color: #fff; }
.footer__copy { margin: 4px 0 0; font-size: 14px; }
.footer__nav { display: flex; gap: 24px; font-size: 14px; flex-wrap: wrap; }
.footer__nav a { color: rgba(255, 255, 255, .7); }
.footer__nav a:hover { color: #fff; }

/* ---------- 11. Reveal-анимации ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 12. Карточка «Блок 4» (широкая) ---------- */
.cards--single { grid-template-columns: 1fr; }

.card--wide {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
}
.card--wide .card__icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
}

/* ---------- 13. Чат-бот ---------- */
.chat-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: start;
  min-width: 0;
}

.chat-window {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 480px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.chat-window__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}
.chat-window__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}
.chat-window__name { font-weight: 600; font-size: 15px; }
.chat-window__status {
  font-size: 12px;
  color: #059669;
  display: flex;
  align-items: center;
  gap: 6px;
}
.chat-window__status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #059669;
}

.chat-window__messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #f8fafc;
}

.chat-msg {
  max-width: 75%;
  padding: 12px 16px;
  border-radius: 14px;
  font-size: 14.5px;
  line-height: 1.5;
  white-space: pre-line;
  word-wrap: break-word;
  text-align: left !important;
  width: fit-content;
}
.chat-msg--bot {
  background: #fff;
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
  color: var(--text);
}
.chat-msg--user {
  background: #334155;
  color: #fff;
  border-bottom-right-radius: 4px;
  align-self: flex-end;
}

.chat-msg--typing {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 18px;
  min-width: 60px;
  background: #fff;
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
  width: fit-content;
}
.chat-msg--typing span {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #94a3b8;
  animation: typingBounce 1.4s infinite ease-in-out both !important;
}
.chat-msg--typing span:nth-child(1) { animation-delay: -0.32s !important; }
.chat-msg--typing span:nth-child(2) { animation-delay: -0.16s !important; }
.chat-msg--typing span:nth-child(3) { animation-delay: 0s !important; }

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  30% {
    transform: translateY(-6px);
    opacity: 1;
  }
}

.chat-window__form {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  background: #fff;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}
.chat-window__form input {
  flex: 1;
  width: 100%;
  min-width: 0;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  color: var(--text);
  box-sizing: border-box;
}

.chat-window__form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}

.chat-window__form .btn {
  padding: 10px 18px;
  flex-shrink: 0;
}

/* ---------- 14. Cookie-баннер и чекбоксы ---------- */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: #fff;
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 20px rgba(15, 23, 42, .08);
    padding: 16px 24px;
}
.cookie-banner__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.cookie-banner__text {
    margin: 0;
    font-size: 14px;
    color: var(--muted);
    max-width: 720px;
    line-height: 1.5;
}
.cookie-banner__actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}
.btn--sm {
    padding: 8px 16px;
    font-size: 14px;
}

.form__row--check + .form__row--check {
    margin-top: 0;
}
.checkbox a {
    color: var(--accent);
    text-decoration: underline;
}
.checkbox a:hover {
    color: var(--primary);
}

/* ---------- 15. Медиазапросы ---------- */

/* 768–1199 px */
@media (max-width: 1199px) {
  .container { padding: 0 20px; }
  .lead-grid { gap: 40px; }
  .chat-grid { gap: 40px; }
  .header__phone { display: none; }
}

/* < 768 px */
@media (max-width: 767px) {
  .header__inner { height: 76px; gap: 12px; }
  .header__cta { display: none; }
  .header__phone { display: none; }
  .nav-toggle { display: inline-flex; }

  .nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    gap: 0;
    padding: 8px 20px 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav a { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav a:last-child { border-bottom: 0; }

  .hero { padding: 80px 0 90px; }
  .section { padding: 72px 0; }
  .contacts { padding: 72px 0; }

  .lead-grid { grid-template-columns: 1fr; gap: 32px; }
  .form { padding: 24px 20px; }
  .form__row--split { grid-template-columns: 1fr; }
  .card { padding: 26px 22px; }

  .card--wide { grid-template-columns: 1fr; gap: 16px; }

  .chat-grid { grid-template-columns: 1fr; gap: 32px; }
  .chat-window { height: 420px; }

  .logo-img { width: 32px; height: 32px; }
  .logo__text { font-size: 18px; }

  .footer__inner { flex-direction: column; align-items: flex-start; }

  .cookie-banner__inner { flex-direction: column; align-items: flex-start; gap: 12px; }
  .cookie-banner__actions { width: 100%; }
  .cookie-banner__actions .btn { flex: 1; }

  .chat-window__form {
    padding: 10px 12px;
   }
   .chat-window__form .btn {
    padding: 10px 14px;
   }
}

.checkbox input[type="checkbox"] {
  accent-color: var(--accent);
  cursor: pointer;
  width: 16px;
  height: 16px;
}

#iiot .cards {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* ==========================================================================
   16. Интерактивные кнопки в чате (воронка)
   ========================================================================== */

.chat-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  background: #f8fafc;
  border-top: 1px dashed var(--border);
  border-bottom-left-radius: var(--radius);
  border-bottom-right-radius: var(--radius);
}

.chat-buttons__group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chat-buttons__label {
  flex-basis: 100%;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 2px;
}

.chat-chip {
  padding: 8px 14px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 20px;
  font-family: inherit;
  font-size: 13.5px;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.chat-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.chat-chip.is-selected {
  background: rgba(13, 148, 136, 0.1);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.chat-buttons__submit {
  margin-top: 8px;
  align-self: flex-start;
  padding: 10px 24px;
}

/* Ссылка на PDF */
.chat-offer {
  align-self: flex-start;
  padding: 12px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  box-shadow: var(--shadow);
  margin-top: 8px;
}

.chat-offer a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.chat-offer a:hover {
  text-decoration: underline;
}

.chat-window__messages {
  padding-bottom: 80px !important; /* Отступ снизу */
}

.chat-buttons {
  margin-bottom: 20px; /* Отступ под кнопками */
}

/* ---------- Стили для чекбокса согласия (152-ФЗ) ---------- */
.consent-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--border);
  padding: 14px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  transition: all 0.2s ease;
  width: 100%;
  box-sizing: border-box;
}

.consent-checkbox:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(13, 148, 136, 0.08);
}

.consent-checkbox input[type="checkbox"] {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: var(--accent); /* Красит галочку в бирюзовый цвет */
  cursor: pointer;
  flex-shrink: 0;
}