/**
 * Status chrome + modal/offcanvas without Bootstrap JS
 * Phase 2 + 3 · RC 5.2.4
 */

/* Backdrops */
.rc-st-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1040;
  background: rgba(15, 15, 15, 0.45);
  opacity: 0;
  transition: opacity 0.15s ease;
}
.rc-st-backdrop.is-open {
  opacity: 1;
}
#rc-st-modal-backdrop { z-index: 1055; }
#rc-st-oc-backdrop { z-index: 1040; }

/* Modal — works with existing .modal markup */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1060;
  overflow-x: hidden;
  overflow-y: auto;
  outline: 0;
}
.modal.rc-st-modal-open,
.modal.show.rc-st-modal-open {
  display: block;
}
.modal .modal-dialog {
  position: relative;
  width: auto;
  margin: 1.75rem auto;
  max-width: 560px;
  pointer-events: auto;
}
.modal.modal-lg .modal-dialog,
.modal .modal-dialog.modal-lg {
  max-width: 800px;
}
.modal-dialog-centered {
  display: flex;
  align-items: center;
  min-height: calc(100% - 3.5rem);
}
body.rc-st-modal-open {
  overflow: hidden;
}

/* Offcanvas mobile sidebar */
@media (max-width: 991.98px) {
  .offcanvas-lg.offcanvas-start {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1045;
    width: min(320px, 88vw);
    max-width: 100%;
    background: var(--rc-card, #fff);
    color: var(--rc-ink, #201F1E);
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    visibility: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.2);
  }
  .offcanvas-lg.offcanvas-start.rc-st-oc-open,
  .offcanvas-lg.offcanvas-start.show {
    transform: translateX(0);
    visibility: visible;
  }
}
@media (min-width: 992px) {
  .offcanvas-lg.offcanvas-start {
    position: static;
    transform: none !important;
    visibility: visible !important;
    width: auto;
    box-shadow: none;
    background: transparent;
  }
  .offcanvas-lg .offcanvas-header.d-lg-none {
    display: none !important;
  }
}

/* Phase 2 chrome — header / theme chip align with RC */
.st-theme-seg {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border-radius: 10px;
  background: var(--rc-card, #fff);
  border: 1px solid var(--rc-border, #e1dfdd);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.st-theme-seg button {
  font-family: var(--rc-font-en, system-ui, sans-serif);
  font-size: 11px;
  font-weight: 600;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--rc-ink, #201F1E);
  cursor: pointer;
}
.st-theme-seg button[aria-pressed="true"] {
  background: var(--rc-accent, #0F6CBD);
  color: #fff !important;
}
.st-theme-seg button:hover {
  border-color: var(--rc-border, #e1dfdd);
}

/* Site header / brand strip */
.site-header,
header.st-header,
.navbar.st-nav {
  font-family: var(--rc-font-en, system-ui, sans-serif) !important;
  border-bottom: 1px solid var(--rc-border, #e1dfdd) !important;
  background: var(--rc-card, #fff) !important;
}
.tree-master-btn,
.tree-selector {
  font-family: var(--rc-font-en, system-ui, sans-serif) !important;
  border-radius: 8px !important;
}
.tree-master-btn.active,
.tree-selector.active {
  background: color-mix(in srgb, var(--rc-accent, #0F6CBD) 12%, var(--rc-card, #fff)) !important;
  color: var(--rc-accent, #0F6CBD) !important;
}

/* Cards */
.update-card,
.card {
  border-radius: 12px !important;
  border-color: var(--rc-border, #e1dfdd) !important;
  background: var(--rc-card, #fff) !important;
  color: var(--rc-ink, #201F1E) !important;
}

/* Footer */
footer.st-footer,
.site-footer {
  font-family: var(--rc-font-en, system-ui, sans-serif) !important;
  color: var(--rc-ink-muted, #605e5c) !important;
  border-top: 1px solid var(--rc-border, #e1dfdd) !important;
  background: var(--rc-paper, #faf9f8) !important;
}

html[data-theme="dark"] .st-theme-seg {
  background: var(--rc-card);
  border-color: var(--rc-border);
}
html[data-theme="dark"] .offcanvas-lg.offcanvas-start {
  background: var(--rc-card);
  color: var(--rc-ink);
}