:root {
  --red: #c8102e;
  --red-dark: #9b0c24;
  --red-light: #ff4d6a;
  --white: #ffffff;
  --off-white: #fafafa;
  --gray-100: #f3f4f6;
  --gray-600: #4b5563;
  --gray-900: #111827;
  --shadow: 0 4px 24px rgba(200, 16, 46, 0.12);
  --radius: 12px;
  --max-width: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.65;
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 3px solid var(--red);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 0;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--gray-900);
  font-weight: 700;
  font-size: 1.125rem;
}

.logo__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--red);
  color: var(--white);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 800;
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  color: var(--gray-600);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color 0.2s;
}

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

.lang-switch {
  display: flex;
  border: 2px solid var(--red);
  border-radius: 8px;
  overflow: hidden;
}

.lang-switch__btn {
  padding: 0.375rem 0.875rem;
  border: none;
  background: var(--white);
  color: var(--red);
  font-weight: 600;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.lang-switch__btn.is-active {
  background: var(--red);
  color: var(--white);
}

.lang-switch__btn:hover:not(.is-active) {
  background: var(--gray-100);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 100%);
  color: var(--white);
  padding: 5rem 0 6rem;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__accent {
  position: absolute;
  right: -10%;
  top: -20%;
  width: 50%;
  height: 140%;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 50%;
  transform: rotate(-12deg);
}

.hero__badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  max-width: 18ch;
  margin-bottom: 1rem;
}

.hero__lead {
  font-size: 1.125rem;
  opacity: 0.92;
  max-width: 52ch;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn--primary {
  background: var(--white);
  color: var(--red);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section--alt {
  background: var(--off-white);
}

.section--contact {
  background: var(--red-dark);
  color: var(--white);
}

.section__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--red);
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 0.75rem;
}

.section__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 3.5rem;
  height: 4px;
  background: var(--red);
  border-radius: 2px;
}

.section__title--light {
  color: var(--white);
}

.section__title--light::after {
  background: var(--white);
}

/* Info card */
.info-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-left: 5px solid var(--red);
  padding: 2rem;
}

.info-list__row {
  display: grid;
  grid-template-columns: minmax(6rem, 10rem) 1fr;
  gap: 0.5rem 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--gray-100);
}

.info-list__row:last-child {
  border-bottom: none;
}

.info-list dt {
  font-weight: 600;
  color: var(--red);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.info-list dd {
  font-size: 1rem;
}

.info-list dd strong {
  color: var(--red-dark);
  font-size: 1.125rem;
  letter-spacing: 0.02em;
}

.section__intro {
  max-width: 72ch;
  color: var(--gray-600);
  font-size: 1.0625rem;
  margin: -0.5rem 0 2rem;
  line-height: 1.75;
}

/* Content */
.content p {
  margin-bottom: 1.5rem;
  color: var(--gray-600);
  font-size: 1.0625rem;
  line-height: 1.85;
  text-align: justify;
}

.content p:last-child {
  margin-bottom: 0;
}

.content__heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--red-dark);
  margin: 2.5rem 0 1rem;
  padding-left: 1rem;
  border-left: 4px solid var(--red);
}

.content__heading:first-child {
  margin-top: 0;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--red);
}

.feature-card h3 {
  font-size: 1.125rem;
  color: var(--red);
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--gray-600);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* Contact */
.contact-block {
  font-style: normal;
  font-size: 1.125rem;
  line-height: 1.8;
}

.contact-block__name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.contact-block__duns {
  margin-top: 1rem;
  font-size: 1.25rem;
}

.contact-block__duns strong {
  font-weight: 800;
  letter-spacing: 0.05em;
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--gray-100);
  padding: 1.5rem 0;
  font-size: 0.875rem;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer__duns {
  color: var(--red-light);
  font-weight: 600;
}

@media (max-width: 640px) {
  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
    padding-top: 0.5rem;
    border-top: 1px solid var(--gray-100);
  }

  .info-list__row {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 3.5rem 0 4rem;
  }

  .section {
    padding: 3rem 0;
  }
}