body.sections-open {
  overflow: hidden;
}

.header-action-group {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 0 0 auto;
  flex-wrap: nowrap;
  gap: 8px;
}

.sections-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(2, 8, 18, 0.7);
  opacity: 0;
  transition: opacity 180ms ease;
  backdrop-filter: blur(4px);
}

.sections-backdrop.is-open {
  opacity: 1;
}

.sections-panel {
  --sections-drag-y: 0px;
  position: fixed;
  left: 50%;
  bottom: 0;
  z-index: 91;
  width: min(680px, 100%);
  max-height: min(78vh, 640px);
  padding: 8px 16px calc(18px + env(safe-area-inset-bottom));
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-bottom: 0;
  border-radius: 24px 24px 0 0;
  background: rgba(10, 18, 33, 0.98);
  box-shadow: 0 -22px 60px rgba(0, 0, 0, 0.42);
  overflow-y: auto;
  overscroll-behavior-y: contain;
  transform: translate(-50%, calc(105% + var(--sections-drag-y)));
  transition: transform 180ms ease;
}

.sections-panel.is-open {
  transform: translate(-50%, var(--sections-drag-y));
}

.sections-panel.is-dragging {
  transition: none;
  user-select: none;
  will-change: transform;
}

.sections-sheet-handle {
  width: 42px;
  height: 4px;
  margin: 0 auto 12px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.46);
}

.sections-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.sections-panel-header h2,
.sections-panel-header p {
  margin: 0;
}

.sections-nav {
  display: grid;
  gap: 10px;
}

.sections-link {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 74px;
  padding: 12px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 16px;
  color: inherit;
  background: rgba(17, 28, 48, 0.72);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.sections-link.is-active {
  border-color: rgba(87, 209, 161, 0.48);
  background: rgba(87, 209, 161, 0.1);
}

.sections-link-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  color: var(--accent, #57d1a1);
  background: rgba(87, 209, 161, 0.1);
}

.sections-link-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sections-link-copy {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.sections-link-copy strong {
  font-size: 0.98rem;
}

.sections-link-copy small {
  color: var(--muted, #96a4ba);
  line-height: 1.3;
}

.sections-link-arrow {
  color: var(--muted, #96a4ba);
  font-size: 1.55rem;
  line-height: 1;
}

.sections-link:focus-visible,
.sections-panel .icon-button:focus-visible {
  outline: 2px solid var(--accent, #57d1a1);
  outline-offset: 2px;
}

/* Keep the PC readiness sheet visually identical to the navigation sheet. */
body.pc-readiness-open {
  overflow: hidden;
}

.pc-readiness-backdrop {
  background: rgba(2, 8, 18, 0.7);
  backdrop-filter: blur(4px);
  transition: opacity 180ms ease;
}

.pc-readiness-panel {
  left: 50%;
  bottom: 0;
  width: min(680px, 100%);
  max-height: min(78vh, 640px);
  gap: 0;
  padding: 8px 16px calc(18px + env(safe-area-inset-bottom));
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-bottom: 0;
  border-radius: 24px 24px 0 0;
  background: rgba(10, 18, 33, 0.98);
  box-shadow: 0 -22px 60px rgba(0, 0, 0, 0.42);
  overflow-y: auto;
  overscroll-behavior-y: contain;
  transform: translate(-50%, calc(105% + var(--pc-readiness-drag-y)));
  transition: transform 180ms ease;
}

.pc-readiness-panel.is-open {
  transform: translate(-50%, var(--pc-readiness-drag-y));
}

.pc-readiness-handle {
  display: block;
  width: 42px;
  height: 4px;
  margin: 0 auto 12px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.46);
}

.pc-readiness-handle span {
  display: none !important;
}

.pc-readiness-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.pc-readiness-header p,
.pc-readiness-header h2 {
  margin: 0;
}

.pc-readiness-header p {
  color: var(--muted, #96a4ba);
  font-size: 0.9rem;
  line-height: 1.35;
}

.pc-readiness-header h2 {
  font-size: 1.22rem;
  line-height: 1.2;
}

.pc-readiness-icon-button {
  display: inline-grid;
  place-items: center;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 0;
  color: var(--text);
  background: var(--panel-soft);
}

.pc-readiness-icon-button svg {
  width: 21px;
  height: 21px;
}

.pc-readiness-summary {
  min-height: 30px;
  margin-bottom: 10px;
  color: var(--muted, #96a4ba);
  font-size: 0.75rem;
}

.pc-readiness-rows {
  display: grid;
  gap: 10px;
}

.pc-readiness-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 74px;
  padding: 12px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 16px;
  color: inherit;
  background: rgba(17, 28, 48, 0.72);
}

.pc-readiness-row.is-ok {
  border-color: rgba(87, 209, 161, 0.48);
  background: rgba(87, 209, 161, 0.1);
}

.pc-readiness-row.is-warn {
  border-color: rgba(241, 187, 98, 0.38);
  background: rgba(241, 187, 98, 0.08);
}

.pc-readiness-row.is-error {
  border-color: rgba(255, 122, 137, 0.42);
  background: rgba(255, 122, 137, 0.08);
}

.pc-readiness-row-icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 13px;
  color: var(--muted, #96a4ba);
  background: rgba(155, 170, 192, 0.1);
}

.pc-readiness-row.is-ok .pc-readiness-row-icon {
  color: var(--accent, #57d1a1);
  background: rgba(87, 209, 161, 0.1);
}

.pc-readiness-row.is-warn .pc-readiness-row-icon {
  color: var(--warn);
  background: rgba(241, 187, 98, 0.1);
}

.pc-readiness-row.is-error .pc-readiness-row-icon {
  color: var(--danger);
  background: rgba(255, 122, 137, 0.1);
}

.pc-readiness-row-icon svg {
  width: 24px;
  height: 24px;
}

.pc-readiness-row-copy {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.pc-readiness-row-copy strong {
  font-size: 0.98rem;
}

.pc-readiness-row-copy small {
  color: var(--muted, #96a4ba);
  font-size: smaller;
  line-height: 1.3;
}

.pc-readiness-row .status-pill {
  justify-self: end;
}

.pc-readiness-icon-button:focus-visible,
.pc-readiness-row:focus-visible {
  outline: 2px solid var(--accent, #57d1a1);
  outline-offset: 2px;
}

@media (max-width: 759px) {
  .sections-sheet-handle,
  .sections-panel-header,
  .pc-readiness-handle,
  .pc-readiness-header {
    touch-action: none;
  }

  .sections-panel-header,
  .pc-readiness-header {
    cursor: grab;
  }

  .sections-panel.is-dragging .sections-panel-header,
  .pc-readiness-panel.is-dragging .pc-readiness-header {
    cursor: grabbing;
  }

  .sections-panel-header .icon-button,
  .pc-readiness-header .pc-readiness-icon-button {
    touch-action: manipulation;
  }
}

@media (max-width: 520px) {
  .header-action-group {
    gap: 6px;
  }

  .sections-panel,
  .pc-readiness-panel {
    width: 100%;
    padding-inline: 12px;
    border-radius: 24px 24px 0 0;
  }

  .pc-readiness-header p {
    font-size: 0.79rem;
  }

  .pc-readiness-header h2 {
    font-size: 1.04rem;
  }

  .pc-readiness-icon-button {
    flex-basis: 40px;
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }

  .sections-link,
  .pc-readiness-row {
    min-height: 68px;
    padding: 10px;
  }

  .sections-link-icon,
  .pc-readiness-row-icon {
    width: 40px;
    height: 40px;
  }
}