:root {
  --red: #ed1c24;
  --black: #111111;
  --grey: #666970;
  --light: #f6f6f6;
  --border: #e4e4e4;
  --white: #ffffff;
  --shell: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--black);
  background: var(--white);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Helvetica,
    Arial,
    sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.shell {
  width: min(calc(100% - 48px), var(--shell));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
}

.nav {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand{
    display:flex;
    align-items:center;
    gap:18px;
    text-decoration:none;
}

.brand-logo{
    height:42px;
    width:auto;
    display:block;
}

.brand-name {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand-subtitle {
  margin-top: 5px;
  color: #8a8d94;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  color: var(--grey);
  font-size: 15px;
  text-decoration: none;
}

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

.nav-links .nav-button {
  padding: 13px 18px;
  color: var(--white);
  background: var(--red);
  border-radius: 9px;
  font-weight: 700;
}

.hero {
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  min-height: 720px;
  padding-top: 120px;
  padding-bottom: 110px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow,
.section-label,
.status {
  color: var(--red);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.hero h1 {
  max-width: 1050px;
  margin: 26px 0 0;
  font-size: clamp(66px, 8vw, 116px);
  line-height: 0.93;
  letter-spacing: -0.07em;
}

.hero-copy {
  max-width: 780px;
  margin: 40px 0 0;
  color: var(--grey);
  font-size: clamp(21px, 2vw, 27px);
  line-height: 1.48;
  letter-spacing: -0.025em;
}

.hero-actions {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
}

.button {
  min-height: 54px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--white);
  background: var(--red);
  border: 1px solid var(--red);
}

.button-secondary {
  color: var(--black);
  background: var(--white);
  border: 1px solid #bfc0c3;
}

.product-section {
  padding: 115px 0;
  background: var(--light);
  border-bottom: 1px solid var(--border);
}

.product-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 70px;
  align-items: start;
}

.product-grid h2,
.contact-inner h2 {
  margin: 22px 0 0;
  font-size: clamp(54px, 6vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.section-intro {
  max-width: 440px;
  margin: 28px 0 0;
  color: var(--grey);
  font-size: 22px;
  line-height: 1.5;
}

.product-card {
  padding: 44px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 24px;
}

.product-card h3 {
  margin: 22px 0 0;
  font-size: clamp(36px, 4vw, 53px);
  line-height: 1.03;
  letter-spacing: -0.05em;
}

.product-card p {
  margin: 28px 0 0;
  color: var(--grey);
  font-size: 18px;
  line-height: 1.65;
}

.product-card ul {
  margin: 30px 0 0;
  padding-left: 21px;
  color: #34363b;
  font-size: 17px;
  line-height: 1.8;
}

.text-link {
  margin-top: 30px;
  display: inline-block;
  color: var(--red);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
}

.principle-section {
  padding: 120px 0;
  border-bottom: 1px solid var(--border);
}

.principle-inner {
  max-width: 1040px;
}

blockquote {
  margin: 30px 0 0;
  font-size: clamp(45px, 5.5vw, 76px);
  font-weight: 750;
  line-height: 1.05;
  letter-spacing: -0.06em;
}

.principle-inner p {
  max-width: 720px;
  margin: 34px 0 0;
  color: var(--grey);
  font-size: 20px;
  line-height: 1.6;
}

.contact-section {
  padding: 115px 0;
  background: var(--light);
  border-bottom: 1px solid var(--border);
}

.contact-inner {
  text-align: center;
}

.contact-inner h2 {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.contact-inner p {
  margin: 28px 0 0;
  color: var(--grey);
  font-size: 20px;
}

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

footer {
  padding: 42px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--grey);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--black);
}

@media (max-width: 850px) {
  .nav-links > a:first-child {
    display: none;
  }

  .hero-inner {
    min-height: 620px;
    padding-top: 90px;
    padding-bottom: 85px;
  }

  .product-grid {
    grid-template-columns: 1fr;
    gap: 45px;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(calc(100% - 36px), var(--shell));
  }

  .nav {
    min-height: 76px;
  }

  .brand-name {
    font-size: 22px;
  }

  .brand-subtitle {
    font-size: 9px;
  }

  .nav-links {
    gap: 14px;
  }

  .nav-links > a:not(.nav-button) {
    display: none;
  }

  .nav-links .nav-button {
    padding: 11px 14px;
    font-size: 13px;
  }

  .hero-inner {
    min-height: 560px;
    padding-top: 75px;
    padding-bottom: 70px;
  }

  .hero h1 {
    font-size: 54px;
  }

  .hero-copy {
    margin-top: 28px;
    font-size: 19px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .product-section,
  .principle-section,
  .contact-section {
    padding: 78px 0;
  }

  .product-card {
    padding: 28px;
  }

  blockquote {
    font-size: 43px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}