:root {
  --bg: #0f172a;
  --bg-soft: #111827;
  --surface: #1f2937;
  --surface-light: #263445;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --primary: #22d3ee;
  --primary-dark: #06b6d4;
  --white: #ffffff;
  --border: #334155;
  --success: #34d399;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, #020617 100%);
  min-height: 100%;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.86);
  backdrop-filter: blur(8px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--white);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-link {
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

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

.hero {
  padding: 92px 0 72px;
}

.hero-grid {
  display: grid;
  gap: 30px;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
}

h1,
h2,
h3 {
  margin: 0 0 16px;
  color: var(--white);
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.3rem);
}

p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.65;
}

.hero p {
  font-size: 1.06rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.btn {
  display: inline-block;
  border-radius: 10px;
  padding: 12px 18px;
  font-weight: 600;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #082f49;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-outline {
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-soft) 100%);
  padding: 22px;
}

.section {
  padding: 66px 0;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.kpi {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kpi strong {
  font-size: 1.9rem;
  color: var(--primary);
}

.badge {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.86rem;
  color: var(--muted);
  margin-bottom: 14px;
}

.list {
  padding-left: 20px;
  color: var(--muted);
}

.list li {
  margin-bottom: 8px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 12px;
  background: var(--surface);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: var(--white);
  padding: 16px 18px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 18px;
  transition: max-height 0.25s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: 16px;
}

.form-row {
  display: grid;
  gap: 12px;
  margin-bottom: 12px;
}

input,
textarea {
  width: 100%;
  background: #0b1220;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 12px 14px;
  font: inherit;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 44px;
}

.footer-inner {
  padding: 26px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
}

.footer-inner p {
  margin: 0;
  font-size: 0.95rem;
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.status-open {
  color: var(--success);
  font-weight: 600;
}

@media (max-width: 900px) {
  .hero-grid,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .menu-toggle {
    display: inline-block;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    right: 4%;
    width: min(300px, 92%);
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #030712;
    padding: 14px;
    display: none;
  }

  .main-nav.open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}