/*!
 * drawer.css — Enterprise Off-Canvas Drawer System
 * v2.1.0 | Theme-aware: inherits from variables.css design tokens
 * Positions: right · left · top · bottom
 * Sizes:     full · half · custom
*/

/* ============================================================
   1. DESIGN TOKENS
   Only define what the global design system does not cover:
   directional shadows, overlay opacity, and scrollbar colors.
   Everything else delegates to variables.css global tokens so
   theme switching is automatic — zero duplication.
   ============================================================ */

:root {
  /* Structure (never theme-dependent) */
  --drawer-z-overlay:      1040;
  --drawer-z-panel:        1050;
  --drawer-header-h:       3.5rem;
  --drawer-header-px:      1.25rem;
  --drawer-body-px:        1.25rem;
  --drawer-body-py:        1.25rem;
  --drawer-footer-h:       3.75rem;
  --drawer-footer-px:      1.25rem;
  --drawer-close-size:     2rem;
  --drawer-close-radius:   0.4375rem;
  --drawer-title-size:     0.9375rem;
  --drawer-title-weight:   600;
  --drawer-spinner-size:   2.125rem;
  --drawer-spinner-border: 0.1875rem;
  --drawer-scrollbar-w:    0.3125rem;
  --drawer-sheet-radius:   1rem;

  /* Bottom sheet */
  --drawer-bottom-radius:     1.375rem;
  --drawer-bottom-header-h:   2.75rem;
  --drawer-handle-w:          2.25rem;
  --drawer-handle-h:           0.25rem;
  --drawer-handle-radius:      0.125rem;
  --drawer-handle-color:       rgba(255, 255, 255, 0.18);
  --drawer-bottom-shadow:      0 -0.5rem 3rem rgba(0, 0, 0, 0.44);

  /* Animation — uses global timing tokens where possible */
  --drawer-duration:  0.3s;
  --drawer-ease:      cubic-bezier(0.4, 0, 0.2, 1);

  /*
     Color tokens — dark theme defaults
     These reference globals from variables.css. Anything that
     has no direct global equivalent (overlay, shadows, scrollbar)
     is defined here and overridden under [data-theme="light"].
*/

  /* Surface */
  --drawer-bg:           var(--bg-card);
  --drawer-footer-bg:    var(--bg-card-alt);
  --drawer-border-color: var(--border-subtle);

  /* Text */
  --drawer-title-color:     var(--text-primary);
  --drawer-close-color:     var(--text-secondary);
  --drawer-close-hover-bg:  var(--bg-card-hover);
  --drawer-close-hover-fg:  var(--text-primary);
  --drawer-loader-text-clr: var(--text-muted);

  /* Brand accent for interactive elements */
  --drawer-spinner-color: var(--gold);
  --drawer-error-color:   var(--red);

  /* Overlay — stays dark in both themes, just lighter in light mode */
  --drawer-overlay-color: rgba(0, 0, 0, 0.52);

  /* Shadows — directional so must stay outside the global shadow tokens */
  --drawer-shadow-clr:    rgba(0, 0, 0, 0.48);

  /* Spinner track — needs explicit dark/light pair */
  --drawer-spinner-track: rgba(255, 255, 255, 0.12);

  /* Scrollbar — explicit because no global scrollbar token exists */
  --drawer-scrollbar-thumb: rgba(255, 255, 255, 0.14);
  --drawer-scrollbar-hover: rgba(255, 255, 255, 0.28);
}

/*
   Light theme overrides
   Only the tokens that cannot delegate to a global token need
   explicit overrides here. Surface/text/border tokens are already
   handled by variables.css [data-theme="light"] cascading through
   the --bg-card / --text-* / --border-* globals above.
*/
[data-theme="light"] {
  --drawer-overlay-color:   rgba(0, 0, 0, 0.30);
  --drawer-shadow-clr:      rgba(0, 0, 0, 0.10);
  --drawer-spinner-track:   rgba(0, 0, 0, 0.10);
  --drawer-scrollbar-thumb: rgba(0, 0, 0, 0.14);
  --drawer-scrollbar-hover: rgba(0, 0, 0, 0.28);
  --drawer-handle-color:    rgba(0, 0, 0, 0.13);
  --drawer-bottom-shadow:   0 -0.5rem 3rem rgba(0, 0, 0, 0.12);
}

/* ============================================================
   2. OVERLAY
   ============================================================ */

.drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--drawer-overlay-color);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity          var(--drawer-duration) var(--drawer-ease),
    background-color 0.38s cubic-bezier(0.4, 0, 0.2, 1);   /* smooth on theme switch */
  will-change: opacity;
}

.drawer-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================
   3. DRAWER PANEL — BASE
   ============================================================ */

.drawer-panel {
  position: fixed;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--drawer-bg);
  color: var(--text-primary);        /* inherit into dynamic content */
  outline: none;
  transition:
    transform          var(--drawer-duration) var(--drawer-ease),
    background-color   0.38s cubic-bezier(0.4, 0, 0.2, 1),         /* smooth on theme switch */
    color              0.38s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

/* ============================================================
   4. POSITION VARIANTS
   ============================================================ */

.drawer-panel[data-position="right"] {
  top: 0; right: 0; bottom: 0;
  width: 50%;
  max-width: 100%;
  transform: translateX(100%);
}

.drawer-panel[data-position="right"].is-open {
  transform: translateX(0);
  box-shadow: -0.25rem 0 1.75rem var(--drawer-shadow-clr);
}

.drawer-panel[data-position="left"] {
  top: 0; left: 0; bottom: 0;
  width: 50%;
  max-width: 100%;
  transform: translateX(-100%);
}

.drawer-panel[data-position="left"].is-open {
  transform: translateX(0);
  box-shadow: 0.25rem 0 1.75rem var(--drawer-shadow-clr);
}

.drawer-panel[data-position="top"] {
  top: 0; left: 0; right: 0;
  height: 50%;
  max-height: 100%;
  transform: translateY(-100%);
}

.drawer-panel[data-position="top"].is-open {
  transform: translateY(0);
  box-shadow: 0 0.25rem 1.75rem var(--drawer-shadow-clr);
}

.drawer-panel[data-position="bottom"] {
  bottom: 0; left: 0; right: 0;
  height: auto;
  max-height: 85vh;
  max-height: 85dvh;
  border-radius: var(--drawer-bottom-radius) var(--drawer-bottom-radius) 0 0;
  transform: translateY(100%);
  /* Close: snappy ease-in — feels like flicking it away */
  transition:
    transform          0.24s cubic-bezier(0.36, 0.66, 0.04, 1),
    background-color   0.38s cubic-bezier(0.4, 0, 0.2, 1),
    color              0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

.drawer-panel[data-position="bottom"].is-open {
  transform: translateY(0);
  box-shadow: var(--drawer-bottom-shadow);
  /* Open: iOS-style spring — decelerates into place */
  transition:
    transform          0.40s cubic-bezier(0.32, 0.72, 0, 1),
    background-color   0.38s cubic-bezier(0.4, 0, 0.2, 1),
    color              0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   4b. BOTTOM SHEET — HANDLE BAR
   Injected by drawer.js for position="bottom" only.
   ============================================================ */

.drawer-handle-bar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem 0.5rem;
  min-height: 2.75rem;
  cursor: grab;
}

.drawer-handle-bar:active {
  cursor: grabbing;
}

.drawer-handle-pill {
  width:            var(--drawer-handle-w);
  height:           var(--drawer-handle-h);
  border-radius:    var(--drawer-handle-radius);
  background-color: var(--drawer-handle-color);
  flex-shrink: 0;
  transition: background-color 0.38s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

/* ============================================================
   5. STACKED STATE
   ============================================================ */

.drawer-panel.is-stacked {
  filter: brightness(0.97);
}

/* ============================================================
   6. HEADER
   ============================================================ */

.drawer-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  padding: 0 var(--drawer-header-px);
  height: var(--drawer-header-h);
  min-height: var(--drawer-header-h);
  border-bottom: 0.0625rem solid var(--drawer-border-color);
  background-color: var(--drawer-bg);
  transition:
    background-color 0.38s cubic-bezier(0.4, 0, 0.2, 1),
    border-color     0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

.drawer-title {
  flex: 1 1 0;
  min-width: 0;
  margin: 0;
  font-size: var(--drawer-title-size);
  font-weight: var(--drawer-title-weight);
  color: var(--drawer-title-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
  transition: color 0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Close Button */
.drawer-close-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width:  var(--drawer-close-size);
  height: var(--drawer-close-size);
  padding: 0;
  margin: 0;
  border: none;
  border-radius: var(--drawer-close-radius);
  background: transparent;
  color: var(--drawer-close-color);
  cursor: pointer;
  line-height: 1;
  transition:
    background-color 0.15s cubic-bezier(0.4, 0, 0.2, 1),
    color            0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.drawer-close-btn:hover {
  background-color: var(--drawer-close-hover-bg);
  color:            var(--drawer-close-hover-fg);
}

.drawer-close-btn:focus-visible {
  outline: 0.125rem solid var(--gold);
  outline-offset: 0.0625rem;
}

.drawer-close-btn iconify-icon {
  display: block;
  pointer-events: none;
}

/* ============================================================
   7. BODY
   ============================================================ */

.drawer-body {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--drawer-body-py) var(--drawer-body-px);
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  transition: background-color 0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Bottom sheet: add safe-area padding so content clears the home indicator */
.drawer-panel[data-position="bottom"] .drawer-body {
  padding-bottom: calc(var(--drawer-body-py) + env(safe-area-inset-bottom, 0));
}

/* Webkit scrollbar */
.drawer-body::-webkit-scrollbar {
  width: var(--drawer-scrollbar-w);
}

.drawer-body::-webkit-scrollbar-track {
  background: transparent;
}

.drawer-body::-webkit-scrollbar-thumb {
  background-color: var(--drawer-scrollbar-thumb);
  border-radius: 62.4375rem;
}

.drawer-body::-webkit-scrollbar-thumb:hover {
  background-color: var(--drawer-scrollbar-hover);
}

/* Firefox */
.drawer-body {
  scrollbar-width: thin;
  scrollbar-color: var(--drawer-scrollbar-thumb) transparent;
}

/* ============================================================
   8. FOOTER
   ============================================================ */

.drawer-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  flex-shrink: 0;
  padding: 0 var(--drawer-footer-px);
  height: var(--drawer-footer-h);
  min-height: var(--drawer-footer-h);
  border-top: 0.0625rem solid var(--drawer-border-color);
  background-color: var(--drawer-footer-bg);
  transition:
    background-color 0.38s cubic-bezier(0.4, 0, 0.2, 1),
    border-color     0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   9. LOADING STATE
   ============================================================ */

.drawer-loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.875rem;
  min-height: 11.25rem;
  padding: 2.5rem var(--drawer-body-px);
}

.drawer-spinner {
  width:  var(--drawer-spinner-size);
  height: var(--drawer-spinner-size);
  border:          var(--drawer-spinner-border) solid var(--drawer-spinner-track);
  border-top-color: var(--drawer-spinner-color);
  border-radius: 50%;
  flex-shrink: 0;
  animation: drawerSpin 0.65s linear infinite;
  transition:
    border-color      0.38s cubic-bezier(0.4, 0, 0.2, 1),
    border-top-color  0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes drawerSpin {
  to { transform: rotate(360deg); }
}

.drawer-loader-text {
  font-size: 0.8125rem;
  color: var(--drawer-loader-text-clr);
  text-align: center;
  margin: 0;
  transition: color 0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   10. ERROR STATE
   ============================================================ */

.drawer-error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.875rem;
  min-height: 11.25rem;
  padding: 2.5rem var(--drawer-body-px);
  text-align: center;
}

.drawer-error-state__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background-color: rgba(var(--red-rgb), 0.12);
  color: var(--drawer-error-color);
  flex-shrink: 0;
  transition:
    background-color 0.38s cubic-bezier(0.4, 0, 0.2, 1),
    color            0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

.drawer-error-state__msg {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
  transition: color 0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

.drawer-error-state__retry {
  padding: 0.4375rem 1.125rem;
  font-size: 0.8125rem;
  font-weight: 500;
  border: 0.0938rem solid var(--border);
  border-radius: 0.5rem;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    border-color     0.15s cubic-bezier(0.4, 0, 0.2, 1),
    background-color 0.15s cubic-bezier(0.4, 0, 0.2, 1),
    color            0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.drawer-error-state__retry:hover {
  border-color:     var(--gold);
  background-color: rgba(var(--gold-rgb), 0.10);
  color:            var(--gold-text);
}

/* ============================================================
   11. MOBILE RESPONSIVE
   ============================================================ */

@media (max-width: 47.9375rem) {
  .drawer-panel[data-position="right"],
  .drawer-panel[data-position="left"] {
    width: 100% !important;
  }

  .drawer-panel[data-position="top"] {
    height: auto !important;
    max-height: 90dvh;
    max-height: 90vh;
  }

  .drawer-header,
  .drawer-footer {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .drawer-body {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}