:root {
  --bg: #0b1020;
  --bg-soft: #121a33;
  --card: #17213f;
  --text: #ecf1ff;
  --muted: #b3c0e0;
  --primary: #4e8cff;
  --primary-hover: #6da0ff;
  --border: #2a3966;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: linear-gradient(180deg, #0b1020 0%, #0d1530 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--text);
  text-decoration: none;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: rgba(10, 15, 30, 0.86);
  border-bottom: 1px solid var(--border);
}

.header-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.brand-text {
  font-weight: 700;
  letter-spacing: 0.5px;
}

.site-nav {
  display: flex;
  gap: 20px;
}

.site-nav a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}

.lang-btn.active {
  border-color: var(--primary);
  color: var(--text);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  padding: 6px 10px;
  cursor: pointer;
}

.hero {
  padding: 72px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: stretch;
}

.eyebrow {
  color: var(--primary-hover);
  font-weight: 600;
  margin-bottom: 8px;
}

h1,
h2,
h3,
h4 {
  margin-top: 0;
}

h1 {
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  line-height: 1.25;
}

.hero-card,
.card,
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}

.hero-card ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.hero-card li {
  color: var(--muted);
  margin-bottom: 8px;
}

.btn {
  display: inline-block;
  margin-top: 14px;
  background: var(--primary);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
}

.btn:hover {
  background: var(--primary-hover);
}

.section {
  padding: 56px 0;
}

.section-soft {
  background: rgba(18, 26, 51, 0.42);
}

.cards {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.cards-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

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

.card p {
  color: var(--muted);
}

.icon-card {
  display: grid;
  gap: 10px;
}

.icon-badge {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: rgba(78, 140, 255, 0.12);
  color: #a6c3ff;
}

.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  fill: none;
}

.icon-sm {
  font-size: 18px;
}

.icon-md {
  font-size: 24px;
}

.icon-lg {
  font-size: 36px;
}

.service-detail ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.service-detail li {
  margin-bottom: 6px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-grid section {
  display: grid;
  gap: 12px;
  align-content: start;
}

form {
  display: grid;
  gap: 10px;
}

input,
textarea {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0f1731;
  color: var(--text);
  padding: 10px;
  font: inherit;
}

textarea {
  resize: vertical;
}

.form-feedback {
  min-height: 24px;
  margin: 0;
  color: var(--primary-hover);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(7, 11, 24, 0.95);
  margin-top: 30px;
}

.footer-wrap {
  display: grid;
  gap: 8px;
  padding: 20px 0 28px;
  color: var(--muted);
}

.footer-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

@media (max-width: 920px) {
  .cards,
  .cards-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    padding: 14px 4%;
    background: #0b1020;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 10px;
  }

  .site-nav.open {
    display: flex;
  }

  .cards,
  .cards-2,
  .cards-3,
  .cards-4 {
    grid-template-columns: 1fr;
  }

  .header-wrap {
    position: relative;
  }
}