/*
Theme Name: BT Clean
Theme URI: https://business-tech.ru
Author: Business Technologies
Description: Clean corporate theme for business-tech.ru
Version: 1.0.0
Text Domain: bt-clean
*/

:root {
  --bt-bg: #f5f7fb;
  --bt-surface: #ffffff;
  --bt-ink: #172033;
  --bt-muted: #627086;
  --bt-line: #dce3ee;
  --bt-brand: #174ea6;
  --bt-brand-dark: #102d61;
  --bt-accent: #0d9488;
  --bt-danger: #ee3f2f;
  --bt-radius: 8px;
  --bt-shadow: 0 18px 55px rgba(23, 32, 51, 0.11);
  --bt-wrap: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--bt-ink);
  background: var(--bt-bg);
  font-family: "Open Sans", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

.bt-wrap {
  width: min(100% - 32px, var(--bt-wrap));
  margin: 0 auto;
}

.bt-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--bt-line);
  backdrop-filter: blur(14px);
}

.bt-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 28px;
}

.bt-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  line-height: 1.2;
}

.bt-logo img {
  width: 92px;
  height: auto;
}

.bt-logo span {
  max-width: 210px;
}

.bt-partner-logo {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.bt-partner-logo img {
  width: 78px;
  height: auto;
}

.bt-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  flex-wrap: wrap;
}

.bt-nav li {
  list-style: none;
}

.bt-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 12px;
  border-radius: 6px;
  color: var(--bt-muted);
  font-size: 14px;
  font-weight: 600;
}

.bt-nav a:hover,
.bt-nav .current-menu-item > a {
  color: var(--bt-brand);
  background: #eaf1ff;
}

.bt-hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(135deg, var(--bt-brand-dark), var(--bt-brand));
}

.bt-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 56px;
  align-items: center;
  min-height: 560px;
  padding: 72px 0;
}

.bt-hero__inner > * {
  min-width: 0;
}

.bt-eyebrow {
  margin: 0 0 14px;
  color: #9ee8df;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.bt-hero-logo {
  width: 190px;
  border-radius: 8px;
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.22);
}

.bt-hero-copy {
  min-width: 0;
}

.bt-hero-aside {
  display: grid;
  gap: 22px;
  justify-items: start;
}

.bt-hero h1,
.bt-page-hero h1 {
  margin: 0;
  font-family: Ubuntu, "Open Sans", Arial, sans-serif;
  font-size: clamp(38px, 5.1vw, 64px);
  line-height: 1.12;
  letter-spacing: 0;
}

.bt-hero p {
  max-width: 680px;
  margin: 30px 0 0;
  color: #dfeaff;
  font-size: 20px;
}

.bt-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.bt-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 7px;
  border: 1px solid transparent;
  font-weight: 700;
}

.bt-button--primary {
  color: #fff;
  background: var(--bt-accent);
}

.bt-button--secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.42);
}

.bt-hero-card {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--bt-radius);
  background: rgba(255, 255, 255, 0.08);
}

.bt-hero-card dl {
  display: grid;
  gap: 16px;
  margin: 0;
}

.bt-hero-fact + .bt-hero-fact {
  margin-top: 16px;
}

.bt-hero-card dt,
.bt-hero-fact__label {
  color: #9ee8df;
  font-size: 13px;
  font-weight: 700;
}

.bt-hero-card dd,
.bt-hero-fact__value {
  margin: 3px 0 0;
  color: #fff;
  font-size: 17px;
}

.bt-section {
  padding: 72px 0;
}

.bt-section--white {
  background: var(--bt-surface);
}

.bt-section__head {
  max-width: 780px;
  margin-bottom: 34px;
}

.bt-section h2,
.bt-content h2 {
  margin: 0 0 16px;
  font-family: Ubuntu, "Open Sans", Arial, sans-serif;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.15;
  letter-spacing: 0;
}

.bt-section p,
.bt-content p {
  margin: 0 0 18px;
  color: var(--bt-muted);
}

.bt-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.bt-card {
  min-height: 100%;
  padding: 26px;
  border: 1px solid var(--bt-line);
  border-radius: var(--bt-radius);
  background: var(--bt-surface);
  box-shadow: 0 8px 24px rgba(23, 32, 51, 0.06);
}

.bt-card h3 {
  margin: 0 0 12px;
  font-size: 21px;
  line-height: 1.3;
}

.bt-card p {
  margin-bottom: 18px;
}

.bt-card a {
  color: var(--bt-brand);
  font-weight: 700;
}

.bt-page-hero {
  color: #fff;
  background: linear-gradient(135deg, var(--bt-brand-dark), #061247);
}

.bt-page-hero__inner {
  padding: 64px 0 58px;
}

.bt-page-hero p {
  max-width: 760px;
  margin: 18px 0 0;
  color: #dfeaff;
  font-size: 19px;
}

.bt-content {
  padding: 58px 0 76px;
  background: var(--bt-surface);
}

.bt-content--elementor {
  padding: 0;
}

.bt-content__body {
  max-width: 980px;
}

.bt-content ul {
  padding-left: 22px;
}

.bt-content li {
  margin: 8px 0;
}

.bt-figure {
  margin: 30px 0 38px;
}

.bt-figure img {
  width: 100%;
  border-radius: var(--bt-radius);
  box-shadow: var(--bt-shadow);
}

.bt-figure figcaption {
  max-width: 760px;
  margin-top: 12px;
  color: var(--bt-muted);
  font-size: 14px;
}

.bt-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: 42px;
  align-items: center;
  margin: 44px 0;
}

.bt-split--text-wide {
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.74fr);
}

.bt-split--reverse {
  grid-template-columns: minmax(320px, 0.82fr) minmax(0, 1fr);
}

.bt-split--reverse .bt-split__media {
  order: -1;
}

.bt-split__media img {
  width: 100%;
  border-radius: var(--bt-radius);
  box-shadow: 0 8px 24px rgba(23, 32, 51, 0.08);
}

.bt-split__text > *:first-child {
  margin-top: 0;
}

.bt-icon-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0 !important;
}

.bt-icon-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  margin: 0;
  list-style: none;
}

.bt-icon-list img {
  width: 34px;
  height: 34px;
}

.bt-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 28px 0;
}

.bt-detail {
  padding: 22px;
  border: 1px solid var(--bt-line);
  border-radius: var(--bt-radius);
  background: #fbfcff;
}

.bt-detail--wide {
  grid-column: 1 / -1;
}

.bt-detail__label {
  margin-bottom: 8px;
  color: var(--bt-accent);
  font-weight: 700;
}

.bt-detail__value {
  color: var(--bt-ink);
  font-size: 18px;
  font-weight: 700;
}

.bt-footer-band {
  overflow: hidden;
  background: #f7fbff;
  border-top: 1px solid var(--bt-line);
}

.bt-footer-band img {
  width: min(100%, 1536px);
  margin: 0 auto;
}

.bt-footer {
  color: #dfeaff;
  background: #071333;
}

.bt-footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  padding: 34px 0;
  align-items: center;
}

.bt-footer a {
  color: #fff;
  font-weight: 700;
}

.bt-footer p {
  margin: 4px 0;
}

@media (max-width: 860px) {
  .bt-header__inner,
  .bt-footer__inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .bt-hero__inner {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .bt-hero-logo {
    width: 150px;
  }

  .bt-grid,
  .bt-split,
  .bt-split--text-wide,
  .bt-split--reverse,
  .bt-details {
    grid-template-columns: 1fr;
  }

  .bt-split {
    gap: 22px;
    margin: 32px 0;
  }

  .bt-split--reverse .bt-split__media {
    order: 0;
  }

  .bt-detail--wide {
    grid-column: auto;
  }

  .bt-figure {
    margin: 22px 0 30px;
  }

  .bt-footer-band img {
    width: 165%;
    max-width: none;
    margin-left: -34%;
  }
}