/* Files App - Elegant Spatial Interface */
/* Terracotta background matching the home aesthetic */

:host {
  position: fixed;
  inset: 0;
  z-index: 900;
  display: flex;
  flex-direction: column;
  background: var(--color-red, oklch(0.55 0.155 25));
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95);
  transition: opacity 0.4s ease, visibility 0.4s ease, transform 0.4s ease;
  dynamic-range-limit: no-limit;
}

:host([open]) {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid oklch(1 0 0 / 0.12);
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* Elegant pill buttons */
.back-btn,
.close-btn {
  background: transparent;
  border: 1px solid oklch(1 0 0 / 0.35);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg, 30px);
  transition: all 0.15s ease;
  padding: 0.5rem 1rem;
  gap: 0.5rem;
}

.back-btn {
  padding: 0.5rem 1.25rem;
}

.close-btn {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: 50%;
}

.back-btn:hover,
.close-btn:hover {
  border-color: oklch(1 0 0 / 0.7);
  background: oklch(1 0 0 / 0.1);
  transform: scale(1.02);
}

.back-btn:active,
.close-btn:active {
  transform: scale(0.96);
  transition: transform 0.08s ease;
}

.back-btn svg,
.close-btn svg {
  width: 1rem;
  height: 1rem;
  stroke: oklch(1 0 0 / 0.6);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  transition: stroke 0.15s ease;
}

.back-btn:hover svg,
.close-btn:hover svg {
  stroke: oklch(1 0 0 / 0.95);
}

.back-btn-text {
  font-family: var(--font-body, 'Cormorant Garamond', serif);
  font-size: 0.85rem;
  font-style: italic;
  color: oklch(1 0 0 / 0.6);
  letter-spacing: 0.08em;
  transition: color 0.15s ease;
}

.back-btn:hover .back-btn-text {
  color: oklch(1 0 0 / 0.95);
}

.title {
  font-family: var(--font-body, 'Cormorant Garamond', serif);
  font-style: italic;
  font-size: 1.15rem;
  font-weight: 400;
  color: oklch(1 0 0 / 0.85);
  letter-spacing: 0.08em;
}

/* Path breadcrumb - elegant serif style */
.path {
  font-family: var(--font-body, 'Cormorant Garamond', serif);
  font-size: 0.8rem;
  font-style: italic;
  color: oklch(1 0 0 / 0.5);
  letter-spacing: 0.06em;
}

.path-segment {
  cursor: pointer;
  transition: color 0.15s ease;
}

.path-segment:hover {
  color: oklch(1 0 0 / 0.95);
}

.path-separator {
  margin: 0 0.4rem;
  opacity: 0.4;
}

/* Spatial Canvas Container */
.canvas-container {
  flex: 1;
  position: relative;
  overflow-y: auto;
  overflow-x: hidden;
  touch-action: pan-y pinch-zoom;
  pointer-events: auto;
  
  /* Auto-hide scrollbar - only show when scrolling/hovering */
  scrollbar-width: none; /* Firefox: hide by default */
  scrollbar-gutter: stable;
}

/* Show scrollbar on hover/interaction */
.canvas-container:hover,
.canvas-container:focus-within {
  scrollbar-width: thin;
  scrollbar-color: oklch(1 0 0 / 0.2) transparent;
}

/* Webkit auto-hide scrollbar */
.canvas-container::-webkit-scrollbar {
  width: 6px;
}

.canvas-container::-webkit-scrollbar-track {
  background: transparent;
}

.canvas-container::-webkit-scrollbar-thumb {
  background: transparent;
  border-radius: 3px;
  transition: background 0.3s ease;
}

.canvas-container:hover::-webkit-scrollbar-thumb,
.canvas-container:active::-webkit-scrollbar-thumb {
  background: oklch(1 0 0 / 0.2);
}

.canvas-container::-webkit-scrollbar-thumb:hover {
  background: oklch(1 0 0 / 0.35);
}

/* Canvas - zoomable grid area */
.canvas {
  min-height: 100%;
  transform-origin: top center;
  transition: transform 0.3s ease;
  will-change: transform;
  pointer-events: auto;
  
  /* Modern CSS Grid - auto-fit responsive columns */
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 2rem;
  padding: 2.5rem;
  align-content: start;
  justify-items: center;
}

/* File/Folder Node - minimal style */
.node {
  display: grid;
  place-items: center;
  gap: 0.75rem;
  padding: 1.25rem;
  border-radius: var(--radius-md, 20px);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
  width: 100%;
  max-width: 140px;
  aspect-ratio: 1 / 1.1;
  opacity: 0;
  animation: node-appear 0.5s ease forwards;
  pointer-events: auto;
}

@keyframes node-appear {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Staggered appearance */
.node:nth-child(1) { animation-delay: 0.05s; }
.node:nth-child(2) { animation-delay: 0.1s; }
.node:nth-child(3) { animation-delay: 0.15s; }
.node:nth-child(4) { animation-delay: 0.2s; }
.node:nth-child(5) { animation-delay: 0.25s; }
.node:nth-child(6) { animation-delay: 0.3s; }
.node:nth-child(7) { animation-delay: 0.35s; }
.node:nth-child(8) { animation-delay: 0.4s; }
.node:nth-child(9) { animation-delay: 0.45s; }
.node:nth-child(10) { animation-delay: 0.5s; }

.node:hover {
  background: oklch(1 0 0 / 0.08);
  transform: scale(1.05);
}

.node:active {
  transform: scale(0.98);
  transition: transform 0.08s ease;
}

/* Node Icon - NO border, just the beautiful vector icon */
.node-icon {
  width: 4.5rem;
  height: 4.5rem;
  display: grid;
  place-items: center;
  transition: transform 0.2s ease;
}

.node:hover .node-icon {
  transform: scale(1.08);
}

.node-icon svg {
  width: 2.75rem;
  height: 2.75rem;
  stroke: oklch(1 0 0 / 0.75);
  stroke-width: 1.25;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.2s ease;
}

.node:hover .node-icon svg {
  stroke: oklch(1 0 0);
}

/* Folder specific - slightly warmer tint */
.node[data-type="folder"] .node-icon svg {
  stroke: oklch(0.95 0.05 70 / 0.9);
}

.node[data-type="folder"]:hover .node-icon svg {
  stroke: oklch(1 0.03 70);
}

/* Node Name - elegant serif */
.node-name {
  font-family: var(--font-body, 'Cormorant Garamond', serif);
  font-size: 1rem;
  font-style: italic;
  color: oklch(1 0 0 / 0.7);
  max-width: 130px;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
}

.node:hover .node-name {
  color: oklch(1 0 0 / 0.95);
}

/* Empty State */
.empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 1.5rem;
  justify-items: center;
  color: oklch(1 0 0 / 0.4);
  pointer-events: none;
}

.empty-state svg {
  width: 3rem;
  height: 3rem;
  stroke: currentColor;
  stroke-width: 1;
  fill: none;
  opacity: 0.6;
}

.empty-state-text {
  font-family: var(--font-body, 'Cormorant Garamond', serif);
  font-style: italic;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
}

/* Loading State */
.loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
}

.loading-spinner {
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid oklch(1 0 0 / 0.2);
  border-top-color: oklch(1 0 0 / 0.8);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Time Scrubber (bottom bar) */
.time-scrubber {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 2rem;
  border-top: 1px solid oklch(1 0 0 / 0.12);
  flex-shrink: 0;
}

.time-label {
  font-family: var(--font-body, 'Cormorant Garamond', serif);
  font-size: 0.75rem;
  font-style: italic;
  color: oklch(1 0 0 / 0.5);
  letter-spacing: 0.08em;
  min-width: 50px;
}

.time-slider {
  flex: 1;
  height: 2px;
  background: oklch(1 0 0 / 0.15);
  border-radius: 1px;
  cursor: pointer;
  position: relative;
}

.time-slider-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: oklch(1 0 0 / 0.6);
  border-radius: 1px;
  width: 100%;
  transition: width 0.2s ease;
}

.time-slider-thumb {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translate(50%, -50%);
  width: 10px;
  height: 10px;
  background: oklch(1 0 0 / 0.9);
  border-radius: 50%;
  box-shadow: 0 0 10px oklch(1 0 0 / 0.3);
}

/* Zoom indicator */
.zoom-indicator {
  position: absolute;
  bottom: 5rem;
  right: 2rem;
  font-family: var(--font-body, 'Cormorant Garamond', serif);
  font-size: 0.75rem;
  font-style: italic;
  color: oklch(1 0 0 / 0.4);
  letter-spacing: 0.08em;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none; /* Don't block clicks */
  z-index: 10;
}

.zoom-indicator.visible {
  opacity: 1;
}

/* Focus states */
.node:focus-visible {
  outline: 1px solid oklch(1 0 0 / 0.6);
  outline-offset: 4px;
}

/* Dragging state */
.node.dragging {
  opacity: 0.5;
  transform: scale(0.95);
}

.node[draggable="true"] {
  cursor: grab;
}

.node[draggable="true"]:active {
  cursor: grabbing;
}

/* Context Menu */
.context-menu {
  position: absolute;
  z-index: 1000;
  min-width: 180px;
  background: oklch(0.2 0.02 25 / 0.95);
  border: 1px solid oklch(1 0 0 / 0.15);
  border-radius: var(--radius-md, 16px);
  padding: 0.5rem;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 
    0 8px 32px oklch(0 0 0 / 0.3),
    0 0 0 1px oklch(1 0 0 / 0.05) inset;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95) translateY(-8px);
  transform-origin: top left;
  transition: 
    opacity 0.2s ease,
    visibility 0.2s ease,
    transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.context-menu.visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

.context-menu-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm, 10px);
  cursor: pointer;
  font-family: var(--font-body, 'Cormorant Garamond', serif);
  font-size: 0.95rem;
  font-style: italic;
  color: oklch(1 0 0 / 0.8);
  letter-spacing: 0.04em;
  text-align: left;
  transition: background 0.15s ease, color 0.15s ease;
}

.context-menu-item:hover {
  background: oklch(1 0 0 / 0.1);
  color: oklch(1 0 0 / 0.95);
}

.context-menu-item:active {
  background: oklch(1 0 0 / 0.15);
  transform: scale(0.98);
}

.context-menu-item svg {
  width: 1.1rem;
  height: 1.1rem;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  opacity: 0.7;
  flex-shrink: 0;
}

.context-menu-item:hover svg {
  opacity: 1;
}

.context-menu-separator {
  height: 1px;
  background: oklch(1 0 0 / 0.1);
  margin: 0.4rem 0.5rem;
}

/* Danger action (delete) */
.context-menu-item--danger {
  color: oklch(0.7 0.15 25);
}

.context-menu-item--danger:hover {
  background: oklch(0.7 0.15 25 / 0.15);
  color: oklch(0.8 0.18 25);
}

.context-menu-item--danger svg {
  stroke: currentColor;
}

/* HDR Enhancement */
@media (dynamic-range: high) {
  .back-btn:hover,
  .close-btn:hover {
    border-color: var(--hdr-white-bright, oklch(1.15 0 0));
  }

  .node:hover .node-icon svg {
    stroke: var(--hdr-white-peak, oklch(1.5 0 0));
  }

  .node:hover .node-name {
    color: var(--hdr-white-bright, oklch(1.15 0 0));
  }

  .title {
    color: var(--hdr-white-bright, oklch(1.15 0 0));
  }

  .time-slider-thumb {
    box-shadow: 0 0 15px oklch(1.2 0 0 / 0.4);
  }

  .context-menu-item:hover {
    color: var(--hdr-white-bright, oklch(1.15 0 0));
  }

  .context-menu-item--danger:hover {
    color: oklch(0.9 0.2 25);
  }
}

/* Responsive */
@media (max-width: 700px) {
  .header {
    padding: 1.25rem 1.5rem;
  }

  .canvas {
    grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
    gap: 1.25rem;
    padding: 1.5rem;
  }

  .node {
    max-width: 110px;
    padding: 1rem 0.75rem;
  }

  .node-icon {
    width: 3.5rem;
    height: 3.5rem;
  }

  .node-icon svg {
    width: 2.25rem;
    height: 2.25rem;
  }

  .node-name {
    font-size: 0.9rem;
    max-width: 100px;
  }

  .time-scrubber {
    padding: 1rem 1.5rem;
  }
}

/* Large screens - limit max columns for better readability */
@media (min-width: 1200px) {
  .canvas {
    grid-template-columns: repeat(auto-fit, minmax(140px, 180px));
    justify-content: center;
  }
}