.etrn-page {
  --etrn-red: #e30611;
  --etrn-red-hover: #c1050e;
  --etrn-red-pressed: #a0040b;
  --etrn-ink: #08090c;
  --etrn-body: #1b2d3b;
  --etrn-mute: #3f455c;
  --etrn-soft: #f6f8fc;
  --etrn-white: #ffffff;
  --etrn-gap: clamp(12px, 1.8vw, 24px);
  --etrn-pad-y: clamp(18px, 2.5vw, 36px);
  --etrn-pad-x: clamp(16px, 2.6vw, 36px);
  --etrn-pad-hero: clamp(20px, 3vw, 44px);
  --etrn-radius: clamp(14px, 1.7vw, 24px);
  --etrn-radius-sm: clamp(10px, 1.2vw, 16px);
  --etrn-title: clamp(18px, 1.55vw + 12px, 22px);
  --etrn-text: clamp(14px, 0.35vw + 13px, 15px);
  --etrn-lead: clamp(15px, 0.4vw + 14px, 16px);
  padding-top: clamp(4px, 0.6vw, 8px);
  padding-bottom: clamp(24px, 4vw, 48px);
}

.etrn-page .page-content {
  gap: var(--etrn-gap);
}

.etrn-hero,
.etrn-grid,
.etrn-stack,
.etrn-card,
.etrn-hero-copy,
.etrn-docs,
.etrn-person,
.etrn-id {
  min-width: 0;
}

.etrn-hero,
.etrn-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
  gap: var(--etrn-gap);
  align-items: stretch;
}

.etrn-hero-copy,
.etrn-card {
  background: var(--etrn-white);
  border-radius: var(--etrn-radius);
  padding: var(--etrn-pad-y) var(--etrn-pad-x);
  box-shadow: 0 7px 17px rgba(226, 232, 240, 0.55);
}

.etrn-hero-copy {
  padding: var(--etrn-pad-hero);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.etrn-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  max-width: 100%;
  background: var(--etrn-soft);
  color: var(--etrn-ink);
  font-size: clamp(12px, 0.3vw + 11px, 13px);
  font-weight: 700;
  line-height: 1.2;
  padding: 8px 12px;
  border-radius: 10px;
  margin: 0 0 clamp(10px, 1.2vw, 16px);
}

.etrn-kicker i {
  color: var(--etrn-red);
  font-size: 14px;
  flex-shrink: 0;
}

.etrn-hero h1 {
  font-size: clamp(24px, 2.1vw + 16px, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  max-width: none;
  overflow-wrap: anywhere;
  text-wrap: pretty;
  margin: 0 0 clamp(10px, 1.2vw, 16px);
  color: var(--etrn-ink);
}

.etrn-lead {
  font-size: var(--etrn-lead);
  line-height: 1.6;
  color: var(--etrn-body);
  max-width: 52ch;
  margin: 0;
  text-wrap: pretty;
}

.etrn-date {
  background: var(--etrn-red);
  color: var(--etrn-white);
  border-radius: var(--etrn-radius);
  padding: clamp(20px, 2.6vw, 36px) clamp(18px, 2.4vw, 32px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: clamp(160px, 22vw, 280px);
}

.etrn-date span {
  display: block;
  font-size: clamp(12px, 0.4vw + 11px, 14px);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.9;
}

.etrn-date strong {
  display: block;
  font-size: clamp(32px, 3.4vw + 18px, 64px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-top: 8px;
}

.etrn-stack {
  display: grid;
  gap: var(--etrn-gap);
}

.etrn-aside {
  align-self: start;
}

.etrn-card h2 {
  position: relative;
  font-size: var(--etrn-title);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(10px, 1.1vw, 14px);
  padding-left: 16px;
  color: var(--etrn-ink);
  text-wrap: balance;
  overflow-wrap: anywhere;
}

.etrn-card h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.12em;
  width: 4px;
  height: 0.78em;
  background: var(--etrn-red);
  border-radius: 2px;
}

.etrn-card p {
  font-size: var(--etrn-text);
  line-height: 1.7;
  color: var(--etrn-body);
  margin: 0 0 12px;
  max-width: 62ch;
  overflow-wrap: anywhere;
}

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

.etrn-docs {
  display: grid;
  gap: 10px;
  margin-top: clamp(12px, 1.4vw, 16px);
}

.etrn-docs div {
  display: grid;
  grid-template-columns: minmax(7.5rem, 9.25rem) minmax(0, 1fr);
  gap: clamp(8px, 1.2vw, 16px);
  align-items: start;
  padding: clamp(12px, 1.4vw, 16px) clamp(14px, 1.5vw, 18px);
  background: var(--etrn-soft);
  border-radius: var(--etrn-radius-sm);
}

.etrn-docs b {
  font-size: 14px;
  font-weight: 800;
  color: var(--etrn-ink);
}

.etrn-docs span {
  font-size: 14px;
  color: var(--etrn-body);
  line-height: 1.45;
}

.etrn-steps {
  display: grid;
  gap: clamp(12px, 1.4vw, 16px);
  margin: clamp(12px, 1.4vw, 16px) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.etrn-steps li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: clamp(10px, 1.2vw, 14px);
  counter-increment: step;
}

.etrn-steps li::before {
  content: counter(step);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--etrn-red);
  color: var(--etrn-white);
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.etrn-steps strong {
  display: block;
  font-size: clamp(15px, 0.4vw + 14px, 16px);
  margin-bottom: 4px;
  padding-top: 8px;
  color: var(--etrn-ink);
}

.etrn-steps span {
  font-size: 14px;
  color: var(--etrn-body);
  line-height: 1.5;
}

.etrn-doki {
  background: #fff5f5;
}

.etrn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
  min-height: 48px;
  padding: 0 20px;
  background: var(--etrn-red);
  color: var(--etrn-white);
  text-decoration: none;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 12px;
  border: 0;
  cursor: pointer;
  transition:
    background 0.2s ease,
    transform 0.15s ease;
}

.etrn-btn:hover {
  background: var(--etrn-red-hover);
  color: var(--etrn-white);
}

.etrn-btn:active {
  background: var(--etrn-red-pressed);
  transform: translateY(1px);
}

.etrn-btn:focus-visible {
  outline: 2px solid var(--etrn-ink);
  outline-offset: 3px;
}

.etrn-btn i {
  font-size: 14px;
}

.etrn-org {
  font-size: 14px;
  line-height: 1.55;
  color: var(--etrn-mute);
}

.etrn-id {
  margin-top: 14px;
  padding: clamp(14px, 1.6vw, 18px);
  background: var(--etrn-ink);
  color: var(--etrn-white);
  border-radius: var(--etrn-radius-sm);
}

.etrn-id small {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #d8dbe5;
  margin-bottom: 10px;
}

.etrn-id code {
  display: block;
  font-size: clamp(12px, 0.3vw + 11px, 13px);
  line-height: 1.5;
  overflow-wrap: anywhere;
  word-break: break-word;
  margin-bottom: 14px;
  color: var(--etrn-white);
}

.etrn-id .etrn-btn {
  width: 100%;
  margin-top: 0;
}

.etrn-id .etrn-btn.is-copied {
  background: #1b2d3b;
}

.etrn-people {
  display: grid;
  gap: 12px;
}

.etrn-person {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(12px, 1.4vw, 16px) clamp(14px, 1.5vw, 18px);
  background: var(--etrn-soft);
  border-radius: var(--etrn-radius-sm);
}

.etrn-role {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--etrn-mute);
  margin-bottom: 4px;
}

.etrn-name {
  font-size: clamp(15px, 0.4vw + 14px, 16px);
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--etrn-ink);
}

.etrn-hint {
  margin: -4px 0 10px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--etrn-body);
  text-wrap: pretty;
}

.etrn-card p a {
  color: var(--etrn-red);
  font-weight: 700;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.etrn-card p a:hover {
  text-decoration: underline;
}

.etrn-person a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  max-width: 100%;
  padding: 6px 0;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  font-weight: 500;
  color: var(--etrn-red);
  overflow-wrap: anywhere;
}

.etrn-person a i {
  flex-shrink: 0;
  color: var(--etrn-ink);
}

.etrn-person a:hover {
  text-decoration: underline;
}

.etrn-person a:focus-visible {
  outline: 2px solid var(--etrn-ink);
  outline-offset: 3px;
  border-radius: 8px;
}

@media (min-width: 901px) {
  .etrn-aside {
    position: sticky;
    top: 16px;
  }
}

@media (max-width: 1100px) {
  .etrn-hero,
  .etrn-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  }

  .etrn-docs div {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .etrn-lead,
  .etrn-card p {
    max-width: none;
  }
}

@media (max-width: 900px) {
  .etrn-hero,
  .etrn-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .etrn-date {
    order: -1;
    min-height: clamp(140px, 32vw, 180px);
  }

  .etrn-aside {
    position: static;
  }
}

@media (max-width: 768px) {
  .etrn-btn {
    width: 100%;
  }

  .etrn-steps li::before {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .etrn-steps li {
    grid-template-columns: 40px minmax(0, 1fr);
  }

  .etrn-steps strong {
    padding-top: 6px;
  }
}

@media (max-width: 480px) {
  .etrn-kicker {
    white-space: normal;
  }

  .etrn-date strong {
    font-size: clamp(28px, 10vw, 36px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .etrn-btn {
    transition: none;
  }

  .etrn-btn:active {
    transform: none;
  }
}