:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-soft: #eef3f8;
  --text: #102033;
  --muted: #5d6b7c;
  --primary: #0f355d;
  --primary-dark: #09233f;
  --accent: #e39a2f;
  --accent-dark: #c77c10;
  --border: #dce4ee;
  --shadow: 0 24px 70px rgba(15, 53, 93, 0.12);
  --radius: 8px;
  --max-width: 1160px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

body.nav-open,
body.widget-open {
  overflow: hidden;
}

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

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

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

button,
summary {
  font: inherit;
}

button {
  border: 0;
}

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

.section {
  padding: 72px 0;
}

.section-muted {
  background: var(--surface-soft);
}

.section-hidden {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.section-visible {
  opacity: 1;
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(16, 32, 51, 0.08);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
}

.logo {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  order: 3;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--accent-dark);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-weight: 700;
  transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent);
  color: #111827;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--accent-dark);
  color: #ffffff;
}

.button-secondary {
  background: #ffffff;
  color: var(--primary);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--muted);
  cursor: pointer;
}

.lang-toggle__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 32px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 800;
}

.lang-toggle__item.is-active {
  background: var(--primary);
  color: #ffffff;
}

.burger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  border-radius: var(--radius);
  background: var(--primary);
  cursor: pointer;
}

.burger span {
  width: 22px;
  height: 2px;
  background: #ffffff;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.burger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.burger.open span:nth-child(2) {
  opacity: 0;
}

.burger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.hero {
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  padding: 72px 0;
  color: #ffffff;
  background:
    linear-gradient(120deg, rgba(9, 35, 63, 0.96), rgba(15, 53, 93, 0.88)),
    url("https://images.unsplash.com/photo-1450101499163-c8848c66ca85?auto=format&fit=crop&w=1800&q=80") center/cover;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

.hero-content {
  max-width: 820px;
}

.eyebrow,
.section-label {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 900px;
  margin-bottom: 22px;
  font-size: clamp(38px, 7vw, 72px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.25;
}

.hero-text {
  max-width: 700px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
}

.hero-actions,
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-badges {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.hero-badges li {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  font-weight: 700;
}

.hero-panel {
  display: none;
}

.section-header {
  max-width: 760px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-header p:not(.section-label) {
  color: var(--muted);
}

.cards-grid,
.advantages-grid,
.process-steps {
  display: grid;
  gap: 18px;
}

.card,
.advantage-card,
.step,
.faq-list details,
.contact-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card,
.advantage-card,
.step {
  padding: 24px;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border-radius: var(--radius);
  background: rgba(227, 154, 47, 0.14);
  color: var(--primary);
  font-size: 14px;
  font-weight: 800;
}

.card-icon svg,
.contact-link svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card p,
.advantage-card p,
.step p,
.faq-list p,
.contact-panel p {
  color: var(--muted);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 860px;
  margin: 0 auto;
}

.faq-list details {
  padding: 0;
  overflow: hidden;
}

.faq-list summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 54px 20px 22px;
  color: var(--primary);
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-dark);
  font-size: 28px;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  padding: 0 22px 22px;
  margin-bottom: 0;
}

.contact-panel {
  display: grid;
  gap: 28px;
  padding: 28px;
}

.contact-list {
  display: grid;
  gap: 12px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--primary);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.contact-link svg {
  flex: 0 0 auto;
  color: var(--accent-dark);
}

.contact-link:hover,
.contact-link:focus-visible {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.messenger-widget {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
}

.messenger-toggle,
.messenger-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  color: #ffffff;
  font-weight: 800;
  box-shadow: 0 16px 34px rgba(16, 32, 51, 0.24);
}

.messenger-link svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.messenger-toggle {
  position: relative;
  z-index: 2;
  background: var(--accent);
  color: #111827;
  cursor: pointer;
}

.messenger-toggle__icon {
  font-size: 30px;
  line-height: 1;
  transition: transform 0.2s ease;
}

.messenger-widget.open .messenger-toggle__icon {
  transform: rotate(45deg);
}

.messenger-menu {
  position: absolute;
  right: 0;
  bottom: 70px;
  display: grid;
  gap: 10px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.messenger-widget.open .messenger-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.messenger-link--telegram {
  background: #229ed9;
}

.messenger-link--max {
  background: #0077ff;
}

.messenger-link--whatsapp {
  background: #25d366;
}

.messenger-link--viber {
  background: #7360f2;
}

.site-footer {
  border-top: 1px solid rgba(16, 32, 51, 0.1);
  background: #ffffff;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-inner p {
  margin-bottom: 0;
}

@media (min-width: 680px) {
  .cards-grid,
  .advantages-grid,
  .process-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: end;
  }

  .hero-panel {
    display: block;
    align-self: center;
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(16px);
  }

  .hero-panel__top {
    display: flex;
    gap: 10px;
    margin-bottom: 80px;
  }

  .hero-panel__top span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    border-radius: var(--radius);
    background: #ffffff;
    color: var(--primary);
    font-weight: 800;
  }

  .hero-panel p {
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.8);
  }

  .hero-panel strong {
    display: block;
    font-size: 24px;
    line-height: 1.2;
  }

  .cards-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .advantages-grid,
  .process-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .contact-panel {
    grid-template-columns: minmax(0, 1fr) 360px;
    align-items: center;
    padding: 36px;
  }
}

@media (max-width: 900px) {
  .burger {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    inset: 76px 0 auto 0;
    display: grid;
    gap: 24px;
    width: 100%;
    padding: 28px 16px 34px;
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-12px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  }

  .site-nav.open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .nav-list {
    display: grid;
    gap: 14px;
    text-align: center;
  }

  .site-nav .button {
    width: min(100%, 360px);
    margin: 0 auto;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 24px, var(--max-width));
  }

  .section {
    padding: 56px 0;
  }

  .header-inner {
    min-height: 70px;
  }

  .logo {
    max-width: 168px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-nav {
    inset: 70px 0 auto 0;
  }

  .hero {
    min-height: calc(100vh - 70px);
    padding: 54px 0;
  }

  .hero-actions .button {
    width: 100%;
  }

  .card,
  .advantage-card,
  .step,
  .contact-panel {
    padding: 20px;
  }

  .messenger-widget {
    right: 14px;
    bottom: 14px;
  }
}