*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #1e293b;
  background: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: 720px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo__img {
  height: 40px;
  width: auto;
}

.nav__list {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #475569;
  transition: color 0.2s;
}

.nav__link:hover {
  color: #0d9488;
}

/* Nav toggle (mobile) */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #1e293b;
  border-radius: 2px;
  transition: 0.3s;
}

/* Hero */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  background:
    linear-gradient(to right, rgba(15, 23, 42, 0.75) 0%, rgba(15, 23, 42, 0.4) 100%),
    url('hero-bg.jpg') center / cover no-repeat;
}

.hero__inner {
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero__content {
  max-width: 640px;
}

.hero__title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 1.125rem;
  color: #e2e8f0;
  margin-bottom: 36px;
  max-width: 480px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero .btn--outline {
  color: #fff;
  border-color: #fff;
}

.hero .btn--outline:hover {
  background: #fff;
  color: #0f172a;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
}

.btn--primary {
  background: #0d9488;
  color: #fff;
  border-color: #0d9488;
}

.btn--primary:hover {
  background: #0f766e;
  border-color: #0f766e;
}

.btn--outline {
  background: transparent;
  color: #0d9488;
  border-color: #0d9488;
}

.btn--outline:hover {
  background: #0d9488;
  color: #fff;
}

/* Sections */
.section {
  padding: 96px 0;
}

.section--alt {
  background: #f8fafc;
}

.section__title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #0f172a;
  margin-bottom: 24px;
}

.section__text {
  font-size: 1.0625rem;
  color: #475569;
  margin-bottom: 20px;
  max-width: 680px;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 36px 28px;
  border: 1px solid #e2e8f0;
  transition: box-shadow 0.25s, transform 0.25s;
}

.card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.card__icon {
  font-size: 2rem;
  margin-bottom: 16px;
  line-height: 1;
}

.card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: #0f172a;
  margin-bottom: 10px;
}

.card__text {
  font-size: 0.9375rem;
  color: #64748b;
  line-height: 1.7;
}

/* CTA box */
.cta-box {
  background: #f0fdfa;
  border: 1px solid #ccfbf1;
  border-radius: 12px;
  padding: 40px 36px;
  text-align: center;
  margin-top: 36px;
}

.cta-box__text {
  font-size: 1.0625rem;
  color: #1e293b;
  font-weight: 500;
  margin-bottom: 24px;
}

/* Contact */
.contact-links {
  margin-top: 24px;
}

.contact-link {
  display: inline-block;
  font-size: 1.125rem;
  font-weight: 600;
  color: #0d9488;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s;
}

.contact-link:hover {
  border-color: #0d9488;
}

/* Footer */
.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 48px 0 36px;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.footer__social {
  display: flex;
  gap: 28px;
}

.footer__social-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: #cbd5e1;
  transition: color 0.2s;
}

.footer__social-link:hover {
  color: #0d9488;
}

.footer__copy {
  font-size: 0.8125rem;
}

/* Mobile */
@media (max-width: 768px) {
  .header__inner {
    height: 56px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid #e2e8f0;
    padding: 20px 24px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: 0.3s;
  }

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

  .nav__list {
    flex-direction: column;
    gap: 16px;
  }

  .nav__link {
    font-size: 1rem;
  }

  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .hero__inner {
    flex-direction: column;
    gap: 32px;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .section {
    padding: 64px 0;
  }

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

  .cta-box {
    padding: 28px 20px;
  }
}