/* ===== Общие стили ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0a1628;
  --bg-secondary: #0b1a30;
  --bg-card: #0f2240;
  --bg-card-hover: #132c52;
  --text-primary: #e8f0fe;
  --text-secondary: #8ba3c7;
  --accent: #4fc3f7;
  --accent-dark: #0288d1;
  --accent-glow: rgba(79, 195, 247, 0.25);
  --gradient-start: #0d1f3c;
  --gradient-end: #162d50;
  --border: rgba(79, 195, 247, 0.15);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Навигация ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 22, 40, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: 0.3s;
}

/* ===== Герой ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--gradient-end) 100%);
  position: relative;
  padding-top: 70px;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 4rem 0;
}

.hero-label {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff, #8ba3c7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.btn-primary {
  display: inline-block;
  padding: 0.9rem 2rem;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #fff;
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(79, 195, 247, 0.4);
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.helicopter-icon {
  width: 100%;
  max-width: 400px;
  filter: drop-shadow(0 0 40px var(--accent-glow));
}

.rotor {
  animation: rotateRotor 0.8s linear infinite;
  transform-origin: 100px 20px;
}

@keyframes rotateRotor {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  line-height: 0;
}

.hero-wave svg {
  width: 100%;
  height: 80px;
}

/* ===== Секции ===== */
.section {
  padding: 6rem 0;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-primary);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--accent);
  margin: 0.8rem auto 0;
  border-radius: 2px;
}

/* ===== Обо мне ===== */
.about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.about-card {
  text-align: center;
  padding: 2rem;
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
}

.about-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.about-text {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.about-text strong {
  color: var(--text-primary);
}

/* ===== Услуги ===== */
.services {
  background: var(--bg-primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  padding: 2.5rem 2rem;
  background: linear-gradient(135deg, var(--bg-card), var(--gradient-start));
  border-radius: 20px;
  border: 1px solid var(--border);
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(79, 195, 247, 0.15);
  border-color: rgba(79, 195, 247, 0.35);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: rgba(79, 195, 247, 0.08);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-icon svg {
  width: 48px;
  height: 48px;
}

.service-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== Регионы ===== */
.regions {
  background: var(--bg-secondary);
}

.regions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.region-card {
  padding: 3rem;
  background: var(--bg-card);
  border-radius: 20px;
  border: 1px solid var(--border);
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.region-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.region-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.region-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--accent);
}

.region-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

/* ===== Контакты ===== */
.contact {
  background: var(--bg-primary);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2.5rem;
  background: var(--bg-card);
  border-radius: 20px;
  border: 1px solid var(--border);
}

.contact-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.contact-info a,
.contact-info span:not(.contact-label) {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.05rem;
}

.contact-info a:hover {
  color: var(--accent);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 2.5rem;
  background: var(--bg-card);
  border-radius: 20px;
  border: 1px solid var(--border);
}

.contact-form input,
.contact-form textarea {
  padding: 0.9rem 1.2rem;
  background: rgba(79, 195, 247, 0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-secondary);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.contact-form textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-form .btn-primary {
  align-self: flex-start;
}

/* ===== Футер ===== */
.footer {
  padding: 2rem 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-note {
  margin-top: 0.3rem;
  font-size: 0.8rem !important;
  color: var(--text-secondary);
  opacity: 0.7;
}

/* ===== Адаптив ===== */
@media (max-width: 900px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

  .hero-visual {
    order: -1;
  }

  .helicopter-icon {
    max-width: 280px;
  }

  .about-grid,
  .services-grid {
    grid-template-columns: 1fr;
  }

  .regions-grid {
    grid-template-columns: 1fr;
  }

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

  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.98);
    flex-direction: column;
    padding: 1rem 1.5rem 1.5rem;
    gap: 0.8rem;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.active {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }
}

/* ===== Анимации ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.service-card,
.about-card,
.region-card {
  animation: fadeInUp 0.6s ease-out both;
}

.service-card:nth-child(2),
.about-card:nth-child(2) {
  animation-delay: 0.15s;
}

.service-card:nth-child(3),
.about-card:nth-child(3) {
  animation-delay: 0.3s;
}