/* Base element resets */
* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
}

header {
  position: sticky;
  top: 0;
  z-index: 950;
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
  backdrop-filter: blur(6px);
}

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

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

ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-header p {
  color: var(--text-secondary);
  margin: 12px auto 0;
  max-width: 720px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--primary-blue-light);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  margin: 0 auto;
  max-width: 1200px;
  gap: 24px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
  font-weight: 500;
}

.nav-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-blue);
}

.language-switcher {
  display: flex;
  gap: 8px;
}

.language-switcher button {
  background: transparent;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--text-secondary);
}

.language-switcher button.active {
  background: var(--primary-blue);
  color: var(--white);
  border-color: var(--primary-blue);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 22px;
  background: var(--text-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
  margin: 0 auto;
}

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

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

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

.hero {
  padding: 80px 20px 40px;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  align-items: center;
}

.hero h1 {
  margin: 16px 0;
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
}

.cards-row {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cards-row .card {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.how-steps {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.how-steps li {
  position: relative;
  list-style: none;
  padding-left: 40px;
  margin-bottom: 24px;
}

.how-steps > li::marker {
  content: "";
}

.how-steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 0;
  left: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--secondary-green);
  color: var(--white);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer {
  background: var(--gray-900);
  color: var(--white);
  padding: 40px 20px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  font-size: 0.95rem;
}

footer a {
  color: var(--gray-100);
}

.footer-rights {
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--gray-300);
}

.section-light {
  background: var(--bg-secondary);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-blue-dark);
}

.stat-label {
  color: var(--text-secondary);
  margin-top: 4px;
}

.value-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.value-metrics .card {
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.language-switcher button:focus-visible,
.btn:focus-visible,
.form-input:focus-visible {
  outline: 3px solid rgba(0, 102, 204, 0.2);
  outline-offset: 2px;
}

#form-feedback {
  color: var(--secondary-green-dark);
  font-weight: 600;
  margin: 0;
}

#form-feedback.error {
  color: var(--error);
}

#form-feedback.loading {
  color: var(--text-secondary);
  font-weight: 500;
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--primary-blue);
  color: var(--white);
  padding: 16px 20px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  max-width: 300px;
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

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

#confetti-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 999;
}

.confetti-piece {
  position: absolute;
  width: 8px;
  height: 16px;
  background: var(--cta-orange);
  opacity: 0;
  animation: confetti-fall 1.8s ease-out forwards;
}

@keyframes confetti-fall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(400px) rotate(360deg);
    opacity: 0;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
    align-self: flex-start;
  }
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    background: var(--white);
    border-radius: 16px;
    border: 1px solid var(--gray-200);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
    padding: 20px;
    gap: 20px;
    display: none;
    z-index: 900;
  }
  .nav-menu.open {
    display: flex;
  }
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .nav-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .language-switcher {
    justify-content: flex-start;
  }

  .hero {
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

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