.tab-shell {
  background: var(--color-panel);
  border-top: 3px solid var(--color-panel-bright);
  border-left: 3px solid var(--color-panel-bright);
  border-right: 3px solid var(--color-border);
  border-bottom: 3px solid var(--color-border);
  box-shadow: var(--hard-shadow-medium);
}

.tab-list,
[role="tablist"] {
  display: flex;
  gap: 3px;
  padding: 5px 5px 0;
  overflow-x: auto;
  background: var(--color-panel);
  scrollbar-width: thin;
}

.tab-button,
[role="tab"] {
  min-height: 44px;
  flex: 0 0 auto;
  padding: 8px 16px;
  color: var(--color-text);
  background: var(--color-panel);
  border-top: 2px solid var(--color-panel-bright);
  border-left: 2px solid var(--color-panel-bright);
  border-right: 2px solid var(--color-border);
  border-bottom: 0;
  font-family: var(--font-mono);
  font-weight: 800;
  cursor: pointer;
}

.tab-button[aria-selected="true"],
[role="tab"][aria-selected="true"] {
  color: var(--color-selection-text);
  background: var(--color-accent);
  border-top-color: var(--color-accent-light);
  border-left-color: var(--color-accent-light);
}

.tab-panel,
[role="tabpanel"] {
  min-width: 0;
  padding: clamp(18px, 4vw, 34px);
  background: var(--color-panel-soft);
  border-top: 2px solid var(--color-panel-bright);
}

.tab-panel[hidden],
[role="tabpanel"][hidden] {
  display: none;
}

.feature-browser {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.6fr);
  background: var(--color-panel);
  border-top: 3px solid var(--color-panel-bright);
  border-left: 3px solid var(--color-panel-bright);
  border-right: 3px solid var(--color-border);
  border-bottom: 3px solid var(--color-border);
  box-shadow: var(--hard-shadow-large);
}

.feature-browser [role="tablist"] {
  display: block;
  padding: 12px;
  border-right: 3px double var(--color-border);
}

.feature-browser [role="tab"] {
  display: block;
  width: 100%;
  border: 0;
  text-align: left;
}

.feature-browser [role="tab"] + [role="tab"] {
  margin-top: 5px;
}

.feature-browser [role="tab"]:focus-visible {
  outline-offset: -5px;
}

.feature-browser [role="tabpanel"] {
  min-height: 320px;
}

.browser-status {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 18px;
  padding: 5px 9px;
  background: var(--color-panel);
  border-top: 2px solid var(--color-panel-shadow);
  font-family: var(--font-mono);
  font-size: 11px;
}

.toc-tabs {
  display: flex;
  max-width: 100%;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0 0 32px;
  padding: 9px;
  background: var(--color-panel);
  border-top: 2px solid var(--color-panel-bright);
  border-left: 2px solid var(--color-panel-bright);
  border-right: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  box-shadow: var(--hard-shadow-small);
}

.toc-tabs a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 6px 10px;
  color: var(--color-selection-text);
  background: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  background: var(--color-panel-soft);
  border-top: 2px solid var(--color-panel-bright);
  border-left: 2px solid var(--color-panel-bright);
  border-right: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  box-shadow: var(--hard-shadow-small);
}

.faq-item summary {
  position: relative;
  min-height: 50px;
  padding: 12px 46px 12px 15px;
  font-family: var(--font-display);
  font-weight: 900;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  top: 10px;
  right: 12px;
  display: grid;
  width: 27px;
  height: 27px;
  place-items: center;
  color: var(--color-selection-text);
  background: var(--color-accent-dark);
  font-family: var(--font-mono);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 15px;
  border-top: 2px dotted var(--color-panel-shadow);
}

.term-card {
  position: relative;
  padding: 23px;
  background: var(--color-paper);
  border: 2px solid var(--color-border);
  box-shadow: 5px 5px 0 var(--color-shadow);
}

.term-card::before {
  content: "TERM";
  display: inline-block;
  margin-bottom: 13px;
  padding: 3px 6px;
  color: var(--color-selection-text);
  background: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 900;
}

.term-card h3 {
  margin-top: 0;
}

.download-card {
  display: grid;
  min-width: 0;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
  padding: 22px;
  background: var(--color-panel-soft);
  border-top: 3px solid var(--color-panel-bright);
  border-left: 3px solid var(--color-panel-bright);
  border-right: 3px solid var(--color-border);
  border-bottom: 3px solid var(--color-border);
  box-shadow: var(--hard-shadow-medium);
}

.download-card__head {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  gap: 14px;
}

.download-card__head img {
  width: 54px;
  height: 54px;
  flex: 0 0 auto;
}

.download-card__title {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 21px;
}

.download-card__version:empty {
  display: none;
}

.download-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge--recommended {
  color: var(--color-selection-text);
  background: var(--color-success);
}

.badge--primary {
  color: var(--color-selection-text);
  background: var(--color-accent);
}

.badge--archived {
  color: var(--color-selection-text);
  background: var(--color-error);
}

.badge--warning {
  color: var(--color-selection-text);
  background: var(--color-warning);
}

.post-card {
  display: grid;
  min-width: 0;
  gap: 13px;
  padding: 24px;
  background: var(--color-panel-soft);
  border-top: 3px solid var(--color-panel-bright);
  border-left: 3px solid var(--color-panel-bright);
  border-right: 3px solid var(--color-border);
  border-bottom: 3px solid var(--color-border);
  box-shadow: var(--hard-shadow-medium);
}

.post-card__meta {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.post-card h3 {
  margin: 0;
}

.post-card h3 a {
  text-decoration: none;
}

.post-card__link {
  color: var(--color-accent-dark);
  font-weight: 900;
}

.callout {
  position: relative;
  margin: 1.5rem 0;
  padding: 17px 19px 17px 48px;
  background: var(--color-paper);
  border-top: 2px solid var(--color-panel-bright);
  border-left: 7px solid var(--color-accent);
  border-right: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  box-shadow: var(--hard-shadow-small);
}

.callout::before {
  content: "!";
  position: absolute;
  top: 15px;
  left: 15px;
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  color: var(--color-selection-text);
  background: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-weight: 900;
}

.callout--warning {
  border-left-color: var(--color-warning);
}

.callout--danger {
  border-left-color: var(--color-error);
}

.download-cta {
  display: grid;
  gap: 15px;
  margin-top: 44px;
  padding: clamp(22px, 4vw, 36px);
  background: var(--color-panel);
  border-top: 4px double var(--color-panel-bright);
  border-left: 4px double var(--color-panel-bright);
  border-right: 4px double var(--color-border);
  border-bottom: 4px double var(--color-border);
  box-shadow: var(--hard-shadow-large);
}

.download-cta h2,
.download-cta h3 {
  margin: 0;
}

.download-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.dl-fab {
  position: fixed;
  right: max(16px, calc((100vw - var(--page-width)) / 2));
  bottom: 18px;
  z-index: 80;
  display: inline-flex;
  max-width: calc(100vw - 32px);
  min-height: 52px;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  color: var(--color-selection-text);
  background: var(--color-accent);
  border-top: 3px solid var(--color-accent-light);
  border-left: 3px solid var(--color-accent-light);
  border-right: 3px solid var(--color-accent-dark);
  border-bottom: 3px solid var(--color-accent-dark);
  box-shadow: var(--hard-shadow-medium);
  font-weight: 900;
  text-decoration: none;
}

.dl-fab__icon {
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  place-items: center;
  color: var(--color-accent-dark);
  background: var(--color-panel-bright);
  border: 2px solid var(--color-border);
  font-family: var(--font-mono);
}

.desktop-stage {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  overflow: hidden;
  isolation: isolate;
}

.desktop-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(135deg, var(--color-transparent) 0 48%, var(--color-desktop-dark) 49% 50%, var(--color-transparent) 51%),
    linear-gradient(45deg, var(--color-transparent) 0 48%, var(--color-desktop-light) 49% 50%, var(--color-transparent) 51%);
  background-size: 84px 84px;
  opacity: 0.16;
}

.preview-hero {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: calc(var(--page-width) + (var(--gutter) * 2));
  min-height: calc(100vh - var(--header-height));
  margin-inline: auto;
  padding: 58px var(--gutter) 72px;
  display: grid;
  grid-template-columns: minmax(420px, 0.92fr) minmax(560px, 1.08fr);
  align-items: center;
  gap: 42px;
}

.preview-hero__copy {
  position: relative;
  z-index: 4;
}

.preview-hero h1 {
  max-width: 650px;
  color: var(--color-paper);
  text-shadow:
    4px 0 0 var(--color-accent-dark),
    0 4px 0 var(--color-accent-dark),
    4px 4px 0 var(--color-shadow-deep),
    8px 8px 0 var(--color-shadow);
}

.title-line {
  display: block;
}

.title-focus {
  display: inline-block;
  margin-top: 7px;
  padding: 3px 12px 8px 6px;
  color: var(--color-selection-text);
  background: var(--color-accent);
  box-shadow:
    5px 0 0 var(--color-accent-dark),
    0 5px 0 var(--color-accent-dark),
    9px 9px 0 var(--color-shadow-deep);
  text-shadow:
    3px 0 0 var(--color-accent-dark),
    0 3px 0 var(--color-accent-dark);
}

.preview-hero__summary {
  max-width: 570px;
  margin: 24px 0 18px;
  padding: 11px 13px;
  background: var(--color-panel-soft);
  border-top: 2px solid var(--color-panel-bright);
  border-left: 2px solid var(--color-panel-bright);
  border-right: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  box-shadow: 5px 5px 0 var(--color-shadow);
}

.preview-hero__summary strong {
  color: var(--color-accent-dark);
  text-decoration: underline;
}

.hero-visual {
  position: relative;
  min-width: 0;
  padding-top: 27px;
}

.device-note {
  position: absolute;
  top: 1px;
  right: 20px;
  z-index: 3;
  padding: 5px 9px;
  background: var(--color-paper);
  border: 2px solid var(--color-border);
  box-shadow: 4px 4px 0 var(--color-shadow);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  transform: rotate(1deg);
}

.wizard {
  width: 100%;
  max-width: 690px;
  margin-left: auto;
  padding: 3px;
  background: var(--color-panel);
  border-top: 3px solid var(--color-panel-bright);
  border-left: 3px solid var(--color-panel-bright);
  border-right: 3px solid var(--color-border);
  border-bottom: 3px solid var(--color-border);
  box-shadow:
    5px 5px 0 var(--color-panel-shadow),
    11px 11px 0 var(--color-shadow),
    16px 16px 0 var(--color-shadow-deep);
}

.wizard__titlebar {
  min-height: 34px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 5px 4px 9px;
  color: var(--color-selection-text);
  background: var(--color-accent-dark);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 900;
}

.wizard__app-icon,
.window-control {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  color: var(--color-accent-dark);
  background: var(--color-panel-soft);
  border-top: 2px solid var(--color-panel-bright);
  border-left: 2px solid var(--color-panel-bright);
  border-right: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  font-family: var(--font-mono);
}

.wizard__app-icon {
  width: 18px;
  height: 18px;
}

.window-controls {
  display: flex;
  gap: 3px;
  margin-left: auto;
}

.window-control {
  width: 25px;
  height: 24px;
  color: var(--color-text);
}

.wizard__main {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  min-height: 396px;
  margin-top: 3px;
  border: 1px solid var(--color-panel-shadow);
}

.wizard__side {
  position: relative;
  overflow: hidden;
  padding: 25px 17px;
  color: var(--color-selection-text);
  background-color: var(--color-accent-dark);
  background-image: repeating-linear-gradient(
    135deg,
    var(--color-accent-dark) 0,
    var(--color-accent-dark) 8px,
    var(--color-stripe, var(--color-accent)) 8px,
    var(--color-stripe, var(--color-accent)) 13px
  );
  border-right: 3px solid var(--color-panel-bright);
}

.wizard__side::after {
  content: "";
  position: absolute;
  right: -38px;
  bottom: -38px;
  width: 128px;
  height: 128px;
  border: 14px solid var(--color-panel-bright);
  opacity: 0.18;
  transform: rotate(45deg);
}

.wizard__step {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 10px;
}

.wizard__side h2 {
  margin: 0;
  font-size: 23px;
}

.wizard__side-rule {
  width: 52px;
  height: 5px;
  margin: 18px 0;
  background: var(--color-panel-bright);
  box-shadow: 4px 4px 0 var(--color-shadow-deep);
}

.wizard__side p {
  font-size: 12px;
  line-height: 1.65;
}

.wizard__content {
  padding: 19px 20px 14px;
  background: var(--color-panel-soft);
}

.wizard__content > strong {
  display: block;
  font-size: 17px;
}

.wizard__hint {
  margin: 5px 0 11px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.platform-list {
  padding: 3px;
  background: var(--color-panel-bright);
  border-top: 2px solid var(--color-panel-shadow);
  border-left: 2px solid var(--color-panel-shadow);
  border-right: 2px solid var(--color-panel-bright);
  border-bottom: 2px solid var(--color-panel-bright);
}

.platform-row {
  display: grid;
  min-height: 42px;
  grid-template-columns: 22px 80px minmax(0, 1fr);
  align-items: center;
  gap: 5px;
  padding: 4px 7px;
  font-size: 11px;
}

.platform-row + .platform-row {
  border-top: 1px dotted var(--color-panel-shadow);
}

.platform-row.is-selected {
  color: var(--color-selection-text);
  background: var(--color-accent);
}

.platform-radio {
  display: block;
  width: 15px;
  height: 15px;
  background: var(--color-panel-bright);
  border: 2px solid var(--color-border);
  border-radius: 50%;
}

.platform-row.is-selected .platform-radio {
  box-shadow: inset 0 0 0 3px var(--color-panel-bright);
  background: var(--color-accent-dark);
}

.wizard__progress {
  display: flex;
  gap: 3px;
  margin-top: 13px;
  padding: 3px;
  border-top: 2px solid var(--color-panel-shadow);
  border-left: 2px solid var(--color-panel-shadow);
  border-right: 2px solid var(--color-panel-bright);
  border-bottom: 2px solid var(--color-panel-bright);
}

.wizard__progress span {
  height: 13px;
  flex: 1 1 0;
  background: var(--color-accent);
}

.wizard__status {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 7px;
  font-family: var(--font-mono);
  font-size: 10px;
}

.wizard__footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 11px 6px 7px;
}

.wizard__footer .button {
  min-height: 36px;
  padding: 5px 13px;
  font-size: 12px;
  box-shadow: 2px 2px 0 var(--color-panel-shadow);
}

.desktop-icon {
  position: absolute;
  z-index: 1;
  width: 82px;
  color: var(--color-selection-text);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.25;
  text-align: center;
  text-shadow: 2px 2px 0 var(--color-shadow-deep);
}

.desktop-icon__picture {
  position: relative;
  display: block;
  width: 48px;
  height: 44px;
  margin: 0 auto 7px;
  filter: drop-shadow(3px 3px 0 var(--color-shadow));
}

.desktop-icon--computer {
  top: 32px;
  left: 20px;
}

.desktop-icon--computer .desktop-icon__picture {
  background: var(--color-panel-soft);
  border-top: 4px solid var(--color-panel-bright);
  border-left: 4px solid var(--color-panel-bright);
  border-right: 4px solid var(--color-border);
  border-bottom: 4px solid var(--color-border);
}

.desktop-icon--computer .desktop-icon__picture::before {
  content: "";
  position: absolute;
  inset: 7px 7px 12px;
  background: var(--color-accent-dark);
  border: 2px solid var(--color-border);
}

.desktop-icon--network {
  top: 28px;
  right: 20px;
}

.desktop-icon--network .desktop-icon__picture::before,
.desktop-icon--network .desktop-icon__picture::after {
  content: "";
  position: absolute;
  width: 23px;
  height: 19px;
  background: var(--color-panel-soft);
  border: 3px solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
}

.desktop-icon--network .desktop-icon__picture::before {
  top: 2px;
  left: 1px;
}

.desktop-icon--network .desktop-icon__picture::after {
  right: 1px;
  bottom: 2px;
}

.desktop-icon--folder {
  bottom: 34px;
  left: 20px;
}

.desktop-icon--folder .desktop-icon__picture {
  height: 34px;
  margin-top: 9px;
  background: var(--color-warning);
  border: 4px solid var(--color-border);
  border-top-color: var(--color-paper);
  border-left-color: var(--color-paper);
}

.desktop-icon--yaml {
  right: 20px;
  bottom: 28px;
}

.desktop-icon--yaml .desktop-icon__picture {
  width: 38px;
  height: 47px;
  background: var(--color-paper);
  border: 3px solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
}

.desktop-icon--yaml .desktop-icon__picture::before {
  content: "YML";
  position: absolute;
  top: 11px;
  left: 3px;
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 900;
  text-shadow: none;
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.swatch {
  padding: 7px;
  background: var(--color-panel);
  border: 2px solid var(--color-border);
  box-shadow: var(--hard-shadow-small);
}

.swatch__color {
  height: 72px;
  border: 2px solid var(--color-border);
}

.swatch__color--desktop { background: var(--color-desktop); }
.swatch__color--panel { background: var(--color-panel); }
.swatch__color--panel-soft { background: var(--color-panel-soft); }
.swatch__color--border { background: var(--color-border); }
.swatch__color--accent { background: var(--color-accent); }
.swatch__color--accent-dark { background: var(--color-accent-dark); }
.swatch__color--success { background: var(--color-success); }
.swatch__color--warning { background: var(--color-warning); }
.swatch__color--error { background: var(--color-error); }
.swatch__color--paper { background: var(--color-paper); }
.swatch__color--text { background: var(--color-text); }
.swatch__color--shadow { background: var(--color-shadow); }

.swatch code {
  display: block;
  margin-top: 7px;
  font-size: 11px;
}

@media (max-width: 1080px) {
  .preview-hero {
    grid-template-columns: minmax(0, 0.9fr) minmax(500px, 1.1fr);
    gap: 28px;
  }

  .wizard__main {
    grid-template-columns: 130px minmax(0, 1fr);
  }

  .wizard__side {
    padding-inline: 13px;
  }
}

@media (max-width: 860px) {
  .preview-hero {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 70px;
  }

  .preview-hero__copy {
    max-width: 680px;
  }

  .hero-visual {
    width: 100%;
  }

  .wizard {
    max-width: 680px;
    margin-inline: auto;
  }

  .desktop-icon {
    opacity: 0.55;
  }

  .feature-browser {
    grid-template-columns: minmax(0, 1fr);
  }

  .feature-browser [role="tablist"] {
    display: flex;
    border-right: 0;
    border-bottom: 3px double var(--color-border);
  }

  .feature-browser [role="tab"] {
    width: auto;
  }

  .feature-browser [role="tab"] + [role="tab"] {
    margin-top: 0;
  }

  .swatch-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .preview-hero {
    min-height: auto;
    padding-top: 48px;
    padding-bottom: 62px;
  }

  .preview-hero h1 {
    max-width: 100%;
    text-shadow:
      3px 0 0 var(--color-accent-dark),
      0 3px 0 var(--color-accent-dark),
      5px 5px 0 var(--color-shadow-deep);
  }

  .title-focus {
    padding-right: 8px;
  }

  .wizard__main {
    grid-template-columns: minmax(0, 1fr);
  }

  .wizard__side {
    min-height: 140px;
    border-right: 0;
    border-bottom: 3px solid var(--color-panel-bright);
  }

  .wizard__side-rule {
    margin-block: 10px;
  }

  .wizard__side p {
    margin: 0;
  }

  .wizard__content {
    padding: 15px 12px 12px;
  }

  .platform-row {
    grid-template-columns: 21px 66px minmax(0, 1fr);
  }

  .device-note {
    right: 6px;
    transform: none;
  }

  .desktop-icon {
    display: none;
  }

  .swatch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .download-card__actions,
  .download-cta__actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .dl-fab {
    right: 16px;
    bottom: 12px;
  }

  .dl-fab__text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}