.install-page {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding-bottom: 56px;
}

.install-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .62fr);
  gap: 48px;
  align-items: end;
  padding: 72px 0 52px;
  border-bottom: 1px solid var(--line);
}

.install-hero h1 {
  max-width: 780px;
  margin: 13px 0 18px;
  font-size: clamp(38px, 5.6vw, 66px);
  line-height: 1.08;
  letter-spacing: 0;
}

.install-lead {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.install-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.install-actions .button {
  min-height: 44px;
}

.install-hero-aside {
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(80, 197, 138, .45);
  border-bottom: 1px solid var(--line);
}

.install-hero-stat {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-height: 83px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.install-hero-stat:last-child { border-bottom: 0; }

.install-hero-stat strong {
  color: var(--green);
  font: 800 16px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .04em;
}

.install-hero-stat span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.install-hero-stat i {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(80, 197, 138, .35);
  border-radius: 10px;
  color: var(--green);
  background: rgba(80, 197, 138, .08);
  font-style: normal;
  font-size: 21px;
}

.install-system-band {
  padding: 42px 0 0;
}

.install-system-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 17px;
}

.install-system-heading h2 {
  margin: 7px 0 0;
  font-size: 30px;
}

.install-system-heading p {
  max-width: 500px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
  text-align: right;
}

.install-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(21, 28, 37, .68);
}

.install-tab {
  display: flex;
  align-items: center;
  gap: 13px;
  min-width: 0;
  padding: 14px 16px;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--muted);
  background: transparent;
  text-align: left;
  cursor: pointer;
  font: inherit;
}

.install-tab:hover { color: var(--text); background: rgba(255, 255, 255, .04); }

.install-tab[aria-selected="true"] {
  border-color: rgba(80, 197, 138, .48);
  color: var(--text);
  background: rgba(80, 197, 138, .12);
  box-shadow: inset 0 0 0 1px rgba(80, 197, 138, .08);
}

.install-tab-icon {
  display: grid;
  place-items: center;
  width: 37px;
  height: 37px;
  flex: 0 0 37px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 8px;
  color: #cfe7dc;
  background: rgba(0, 0, 0, .18);
  font-size: 19px;
  font-weight: 800;
}

.install-tab[aria-selected="true"] .install-tab-icon {
  border-color: rgba(80, 197, 138, .45);
  color: var(--green);
  background: rgba(80, 197, 138, .12);
}

.install-tab-copy { display: grid; gap: 1px; min-width: 0; }
.install-tab-copy strong { font-size: 15px; }
.install-tab-copy small { color: var(--muted); font-size: 12px; }

.install-panel[hidden] { display: none; }

.install-panel-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 22px;
  padding: 33px 0 27px;
  border-bottom: 1px solid var(--line);
}

.install-panel-head h3 {
  margin: 7px 0 8px;
  color: var(--text);
  font-size: 25px;
}

.install-panel-head p {
  max-width: 710px;
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.install-panel-meta {
  display: grid;
  gap: 4px;
  min-width: 145px;
  padding: 13px 15px;
  border-left: 2px solid var(--green);
  background: rgba(80, 197, 138, .07);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.install-panel-meta strong { color: var(--green); font-size: 20px; line-height: 1.1; }

.install-steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.install-step {
  display: grid;
  grid-template-columns: minmax(250px, .72fr) minmax(0, 1.28fr);
  gap: 38px;
  align-items: start;
  padding: 43px 0;
  border-bottom: 1px solid var(--line);
}

.install-step:nth-child(even) { grid-template-columns: minmax(0, 1.28fr) minmax(250px, .72fr); }
.install-step:nth-child(even) .install-step-copy { grid-column: 2; grid-row: 1; }
.install-step:nth-child(even) .install-figure { grid-column: 1; grid-row: 1; }

.install-step-copy { min-width: 0; }

.install-step-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--green);
  font: 800 12px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.install-step-copy h4 {
  margin: 11px 0 12px;
  color: var(--text);
  font-size: 25px;
  line-height: 1.23;
}

.install-step-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.78;
}

.install-step-check {
  display: grid;
  gap: 3px;
  margin-top: 20px;
  padding: 11px 13px;
  border-left: 3px solid var(--blue);
  background: rgba(101, 168, 239, .08);
}

.install-step-check strong { color: #b6d8f8; font-size: 12px; }
.install-step-check span { color: var(--muted); font-size: 13px; line-height: 1.55; }

.install-step--optional .install-step-kicker { color: var(--gold); }
.install-step--optional .install-step-check { border-left-color: var(--gold); background: rgba(232, 198, 115, .08); }
.install-step--optional .install-step-check strong { color: var(--gold); }

.install-badge {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 3px 7px;
  border: 1px solid rgba(232, 198, 115, .35);
  border-radius: 999px;
  color: var(--gold);
  background: rgba(232, 198, 115, .08);
  font: 700 10px/1.1 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
  text-transform: none;
}

.install-figure {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 9px;
  background: #090f16;
  box-shadow: 0 18px 42px rgba(0, 0, 0, .2);
}

.install-figure button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  color: inherit;
  background: transparent;
  cursor: zoom-in;
}

.install-figure button:focus-visible,
.install-tab:focus-visible,
.install-lightbox button:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

.install-figure img {
  display: block;
  width: 100%;
  height: auto;
  background: #090f16;
}

.install-figure figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.install-figure figcaption span:last-child { color: #768794; text-align: right; }

.install-branch-note {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 25px 0 -1px;
  padding: 15px 17px;
  border: 1px solid rgba(232, 198, 115, .3);
  border-left: 3px solid var(--gold);
  color: var(--muted);
  background: rgba(232, 198, 115, .07);
  font-size: 13px;
  line-height: 1.65;
}

.install-branch-note strong { flex: 0 0 auto; color: var(--gold); }

.install-lower-band {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, .92fr);
  gap: 25px;
  margin-top: 48px;
  padding: 39px 0 0;
  border-top: 1px solid var(--line);
}

.install-lower-band h2 { margin-bottom: 12px; font-size: 28px; }
.install-lower-band p { margin: 0; color: var(--muted); line-height: 1.8; }

.install-update-box {
  padding: 22px 23px;
  border: 1px solid rgba(101, 168, 239, .3);
  border-left: 3px solid var(--blue);
  background: rgba(101, 168, 239, .08);
}

.install-update-box h3 { margin: 0 0 7px; color: #c3e0fb; font-size: 18px; }
.install-update-box p { font-size: 13px; line-height: 1.7; }

.install-faq-band { padding-top: 50px; }
.install-faq-band h2 { margin-bottom: 18px; }

.install-faq { display: grid; gap: 8px; }
.install-faq details { padding: 14px 16px; border: 1px solid var(--line); background: rgba(21, 28, 37, .75); }
.install-faq summary { cursor: pointer; color: var(--text); font-weight: 700; }
.install-faq p { margin: 9px 0 0; color: var(--muted); line-height: 1.7; }

.install-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 32px 74px;
  background: rgba(3, 7, 12, .94);
}

.install-lightbox.is-open { display: flex; }
.install-lightbox img { display: block; max-width: min(94vw, 1800px); max-height: calc(100vh - 64px); width: auto; height: auto; object-fit: contain; box-shadow: 0 24px 90px rgba(0, 0, 0, .58); }
.install-lightbox-control { position: absolute; display: grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 1px solid rgba(255, 255, 255, .28); border-radius: 50%; color: #fff; background: rgba(12, 19, 29, .86); cursor: pointer; font-size: 26px; line-height: 1; }
.install-lightbox-control:hover { border-color: var(--green); background: rgba(80, 197, 138, .25); }
.install-lightbox-close { top: 18px; right: 22px; }
.install-lightbox-prev { left: 18px; top: 50%; transform: translateY(-50%); }
.install-lightbox-next { right: 18px; top: 50%; transform: translateY(-50%); }
.install-lightbox-caption { position: absolute; left: 50%; bottom: 15px; max-width: calc(100% - 150px); transform: translateX(-50%); color: #d8e3ea; font-size: 12px; text-align: center; }

@media (max-width: 860px) {
  .install-hero { grid-template-columns: 1fr; gap: 30px; padding-top: 48px; }
  .install-hero-aside { max-width: 620px; }
  .install-system-heading { align-items: start; flex-direction: column; gap: 10px; }
  .install-system-heading p { max-width: 680px; text-align: left; }
  .install-step,
  .install-step:nth-child(even) { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .install-step:nth-child(even) .install-step-copy,
  .install-step:nth-child(even) .install-figure { grid-column: auto; grid-row: auto; }
  .install-step:nth-child(even) .install-figure { order: 2; }
  .install-lower-band { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .install-page { width: calc(100% - 24px); padding-bottom: 34px; }
  .install-hero { padding: 34px 0 34px; }
  .install-hero h1 { font-size: 38px; }
  .install-lead { font-size: 16px; line-height: 1.7; }
  .install-tabs { gap: 5px; }
  .install-tab { gap: 9px; padding: 12px 10px; }
  .install-tab-icon { width: 32px; height: 32px; flex-basis: 32px; font-size: 16px; }
  .install-tab-copy strong { font-size: 13px; }
  .install-tab-copy small { font-size: 10px; }
  .install-panel-head { padding-top: 26px; flex-direction: column; gap: 14px; }
  .install-panel-head h3 { font-size: 22px; }
  .install-panel-meta { width: 100%; min-width: 0; }
  .install-step { padding: 31px 0; }
  .install-step-copy h4 { font-size: 22px; }
  .install-figure figcaption { display: grid; gap: 3px; }
  .install-figure figcaption span:last-child { text-align: left; }
  .install-lightbox { padding: 70px 16px 55px; }
  .install-lightbox-prev { left: 10px; }
  .install-lightbox-next { right: 10px; }
  .install-lightbox-caption { max-width: calc(100% - 105px); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}