:root {
  --primary: #f84c00;
  --primary-dark: #bc2700;
  --primary-light: #ff602f;
  --secondary: #2b66ff;
  --secondary-dark: #13264d;
  --secondary-light: #5182ff;
  --success: #059863;
  --warning: #ff6f00;
  --error: #e23226;
  --black: #0e1624;
  --grey-900: #1a2b44;
  --grey-800: #333f51;
  --grey-700: #404f65;
  --grey-600: #4d5f7a;
  --grey-500: #556987;
  --grey-400: #8896ab;
  --grey-300: #bbc3cf;
  --grey-200: #d5dae1;
  --grey-100: #eef0f3;
  --grey-50: #f7f8f9;
  --white: #ffffff;
  --shadow-1: 0 6px 18px rgba(14, 22, 36, 0.08);
  --shadow-2: 0 14px 36px rgba(14, 22, 36, 0.14);
  --anchor-offset: calc(64px + 8px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--anchor-offset);
}

body {
  margin: 0;
  background: var(--white);
  color: var(--black);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
}

[id] {
  scroll-margin-top: var(--anchor-offset);
}

button,
input,
textarea {
  font: inherit;
}

.page-shell {
  width: 1024px;
  margin: 0 auto;
  background: var(--white);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  min-height: 72px;
  border-bottom: 1px solid var(--grey-100);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
}

.header-controls {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  justify-content: end;
}

.logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 112px;
  height: 40px;
  border-radius: 8px;
  background: var(--grey-100);
  color: var(--black);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  line-height: 18px;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.nav a,
.header-action,
.text-link {
  color: var(--secondary);
  text-decoration: none;
  font-size: 14px;
  line-height: 18px;
}

.nav a {
  color: var(--grey-700);
}

.nav a:hover,
.header-action:hover,
.text-link:hover {
  color: var(--secondary-light);
  text-decoration: underline;
}

.header-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  border-radius: 8px;
  background: var(--primary);
  color: var(--white);
  padding: 0 16px;
  font-weight: 500;
}

.header-action:hover {
  background: var(--primary-light);
  color: var(--white);
  text-decoration: none;
}

.header-action:active {
  background: var(--primary-dark);
}

.menu-toggle,
.menu-backdrop {
  display: none;
}

.menu-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--grey-200);
  border-radius: 8px;
  background: var(--white);
  padding: 0;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: var(--black);
  transition: opacity 0.16s ease, transform 0.16s ease;
}

main {
  display: grid;
  gap: 24px;
  padding: 24px 0 32px;
}

.section-band {
  border-radius: 8px;
  background: var(--grey-100);
  padding: 40px;
  text-align: center;
}

.hero {
  display: grid;
  min-height: 300px;
  align-items: center;
  justify-items: center;
  background: linear-gradient(135deg, var(--grey-100), var(--grey-50));
}

.hero-copy {
  max-width: 720px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--grey-600);
  font-size: 12px;
  font-weight: 500;
  line-height: 16px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 16px;
  font-size: 60px;
  font-weight: 700;
  line-height: 60px;
}

h2 {
  margin-bottom: 0;
  font-size: 36px;
  font-weight: 700;
  line-height: 44px;
}

h3 {
  margin-bottom: 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 22px;
}

p,
li,
dd {
  color: var(--grey-800);
  font-size: 16px;
  line-height: 24px;
}

.section-head {
  display: grid;
  gap: 8px;
  align-items: start;
  justify-items: center;
  margin-bottom: 32px;
  text-align: center;
}

.section-head.compact {
  margin-bottom: 24px;
}

.product-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.product-item,
.price-item {
  display: grid;
  gap: 16px;
  align-items: start;
  justify-items: center;
  text-align: center;
}

.product-item p,
.price-item p {
  max-width: 820px;
  text-align: center;
}

.product-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 172px;
  height: 72px;
}

.product-mark img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.samba-mark {
  width: 220px;
}

.l1-mark {
  width: 72px;
}

.l1-mark img {
  width: 56px;
  height: 56px;
  flex: 0 0 auto;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.tag-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 140px;
  height: 56px;
  border-radius: 8px;
  background: var(--white);
  color: var(--black);
  font-size: 14px;
  font-weight: 500;
  line-height: 18px;
}

.tag-list img {
  width: 26px;
  height: 26px;
  object-fit: contain;
}

.product-detail {
  display: grid;
  justify-items: center;
  gap: 24px;
}

.detail-intro {
  display: grid;
  gap: 32px;
  justify-items: center;
  text-align: center;
}

.link-one-intro {
  grid-auto-flow: column;
  align-items: center;
  gap: 16px;
}

.lead {
  max-width: 740px;
  text-align: center;
}

.feature-block {
  display: grid;
  gap: 16px;
  justify-items: center;
  max-width: 760px;
  text-align: center;
}

.feature-block ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
  text-align: left;
}

.feature-block li {
  position: relative;
  padding-left: 16px;
}

.feature-block li::before {
  position: absolute;
  left: 0;
  content: "-";
}

.feature-block li + li {
  margin-top: 8px;
}

.registry-note {
  max-width: 520px;
  color: var(--grey-600);
  font-size: 14px;
  line-height: 18px;
  text-align: center;
}

.action-row {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.contacts-section {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
  text-align: left;
}

.contacts-copy > h2,
.contact-company {
  text-align: center;
}

.legal-card {
  margin-top: 32px;
  border-radius: 8px;
  background: var(--grey-50);
  padding: 24px;
}

.contact-company {
  margin-bottom: 0;
  color: var(--black);
  font-size: 18px;
  font-weight: 600;
  line-height: 22px;
}

.details-list {
  display: grid;
  gap: 16px;
  margin: 24px 0 0;
}

.details-list div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 16px;
}

.details-list dt {
  color: var(--grey-600);
  font-size: 14px;
  font-weight: 500;
  line-height: 18px;
}

.details-list dd {
  margin: 0;
}

.feedback-form {
  display: grid;
  align-content: start;
  gap: 16px;
  border-radius: 8px;
  background: var(--grey-100);
  padding: 24px;
  text-align: left;
}

.feedback-form h3 {
  text-align: center;
}

.feedback-form label {
  display: grid;
  gap: 8px;
  color: var(--grey-800);
  font-size: 14px;
  font-weight: 500;
  line-height: 18px;
}

.feedback-form input,
.feedback-form textarea {
  width: 100%;
  border: 1px solid var(--grey-200);
  border-radius: 8px;
  background: var(--white);
  padding: 8px 16px;
  color: var(--black);
  resize: vertical;
}

.feedback-form input:focus,
.feedback-form textarea:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(43, 102, 255, 0.12);
  outline: none;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  height: 40px;
  border: 0;
  border-radius: 8px;
  background: var(--primary);
  color: var(--white);
  padding: 0 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  line-height: 18px;
}

.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  height: 40px;
  border: 1px solid var(--grey-200);
  border-radius: 8px;
  background: var(--white);
  color: var(--grey-900);
  padding: 0 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  line-height: 18px;
}

.secondary-button:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.mailto-fallback {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--grey-200);
  padding-top: 16px;
}

.mailto-fallback[hidden] {
  display: none;
}

.mailto-fallback p {
  margin: 0;
  font-size: 14px;
  line-height: 20px;
}

.primary-button:hover {
  background: var(--primary-light);
}

.primary-button:active {
  background: var(--primary-dark);
}

.site-footer {
  display: grid;
  justify-items: center;
  gap: 8px;
  border-radius: 8px 8px 0 0;
  background: var(--grey-100);
  padding: 32px 24px;
  color: var(--grey-700);
  text-align: center;
  font-size: 14px;
  line-height: 18px;
}

.site-footer nav {
  display: flex;
  gap: 16px;
}

.site-footer a {
  color: var(--secondary);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--secondary-light);
  text-decoration: underline;
}

@media (max-width: 1024px) {
  .page-shell {
    width: 100%;
    padding: 0 24px;
  }
}

@media (max-width: 760px) {
  .page-shell {
    padding: 0 16px;
  }

  .site-header {
    position: sticky;
    z-index: 50;
    grid-template-columns: auto 1fr;
    gap: 8px;
    padding: 16px 0;
  }

  .logo {
    width: 96px;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 60;
    display: grid;
    align-content: start;
    justify-content: stretch;
    gap: 4px;
    width: min(82vw, 320px);
    height: 100vh;
    padding: 80px 24px 24px;
    background: var(--white);
    box-shadow: var(--shadow-2);
    transform: translateX(110%);
    transition: transform 0.18s ease;
  }

  .nav a {
    display: flex;
    align-items: center;
    min-height: 44px;
    border-radius: 8px;
    padding: 0 16px;
    color: var(--grey-800);
    font-size: 16px;
    line-height: 18px;
  }

  .nav a:hover {
    background: var(--grey-100);
    color: var(--secondary);
  }

  .header-action {
    height: 40px;
    padding: 0 16px;
    white-space: nowrap;
  }

  .header-controls {
    justify-self: end;
  }

  .menu-toggle {
    display: block;
    flex: 0 0 auto;
  }

  .menu-backdrop {
    position: fixed;
    inset: 0;
    z-index: 20;
    border: 0;
    background: rgba(14, 22, 36, 0.34);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease;
  }

  body.menu-open {
    overflow: hidden;
  }

  body.menu-open .nav {
    transform: translateX(0);
  }

  body.menu-open .menu-backdrop {
    display: block;
    opacity: 1;
    pointer-events: auto;
  }

  body.menu-open .menu-toggle {
    position: relative;
    z-index: 70;
  }

  body.menu-open .menu-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

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

  body.menu-open .menu-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  main {
    gap: 24px;
    padding-top: 8px;
  }

  .section-band {
    padding: 24px 16px;
  }

  .hero {
    min-height: 220px;
  }

  h1 {
    font-size: 36px;
    line-height: 44px;
  }

  h2 {
    font-size: 24px;
    line-height: 30px;
  }

  h3 {
    font-size: 16px;
    line-height: 18px;
  }

  p,
  li,
  dd {
    font-size: 14px;
    line-height: 20px;
  }

  .section-head,
  .product-grid,
  .pricing-grid,
  .feature-block,
  .contacts-section {
    grid-template-columns: 1fr;
  }

  .section-head,
  .feature-block,
  .contacts-section {
    gap: 16px;
  }

  .product-item,
  .price-item {
    gap: 16px;
  }

  .product-mark {
    width: 148px;
    height: 52px;
  }

  .samba-mark {
    width: 180px;
  }

  .l1-mark {
    width: 56px;
  }

  .l1-mark img {
    width: 48px;
    height: 48px;
  }

  .tag-list span {
    min-width: 132px;
    height: 48px;
  }

  .detail-intro {
    display: grid;
    gap: 16px;
  }

  .link-one-intro {
    grid-auto-flow: column;
    gap: 8px;
  }

  .details-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .feedback-form {
    padding: 16px;
  }

  .site-footer nav {
    flex-wrap: wrap;
    justify-content: center;
  }
}