/* Excalidraw recreation — UI chrome styles (element rendering happens on canvas) */

:root {
  --island-bg: #ffffff;
  --island-border: rgba(0, 0, 0, 0.05);
  --island-shadow: 0 0 0 1px var(--island-border), 0 4px 12px -2px rgba(0, 0, 0, 0.12);
  --text-primary: #1b1b1b;
  --icon-fill: #1b1b1b;
  --btn-hover: #f0f0f0;
  --btn-active: #e0dfff;
  --btn-active-text: #4a47c9;
  --panel-label: #1b1b1b;
  --overlay-bg: rgba(255, 255, 255, 0.98);
  --overlay-border: #e5e5e5;
  --input-bg: #ffffff;
  --input-border: #e0e0e0;
  --selection: #6965db;
  --danger: #e03131;
  --scrollbar: #e5e5e5;
  --canvas-grid: rgba(0, 0, 0, 0.08);
  --chip-border: #d8d8d8;
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.16);
}

body.theme-dark {
  --island-bg: #121212;
  --island-border: rgba(255, 255, 255, 0.1);
  --text-primary: #e3e3e3;
  --icon-fill: #e1e1e1;
  --btn-hover: #2a2a2a;
  --btn-active: #5147c7;
  --btn-active-text: #e0dfff;
  --panel-label: #e3e3e3;
  --overlay-bg: #232329;
  --overlay-border: #36363d;
  --input-bg: #121212;
  --input-border: #36363d;
  --scrollbar: #36363d;
  --canvas-grid: rgba(255, 255, 255, 0.1);
  --chip-border: #4a4a52;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  background: #ffffff;
}
body.theme-dark { background: #121212; }

#app { position: fixed; inset: 0; }

#canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
  outline: none;
}

/* ---------- islands ---------- */
.island {
  position: absolute;
  background: var(--island-bg);
  border-radius: 10px;
  box-shadow: var(--island-shadow);
  z-index: 20;
  display: flex;
  align-items: center;
  padding: 4px;
}

#main-menu-island { top: 12px; left: 12px; }

#toolbar {
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  gap: 2px;
  max-width: calc(100vw - 200px);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
}
#toolbar::-webkit-scrollbar { display: none; }

#bottom-left {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: flex;
  gap: 8px;
  z-index: 20;
  align-items: center;
}
#zoom-island, #undo-island { gap: 2px; }

/* ---------- buttons ---------- */
button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

.tool-btn {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--icon-fill);
  cursor: pointer;
  position: relative;
  padding: 0;
}
.tool-btn:hover { background: var(--btn-hover); }
.tool-btn.active { background: var(--btn-active); color: var(--btn-active-text); }
.tool-btn:disabled { opacity: 0.4; cursor: default; }
.tool-btn:disabled:hover { background: transparent; }
.tool-btn svg { width: 20px; height: 20px; display: block; }

.tool-sep {
  width: 1px;
  height: 20px;
  background: var(--chip-border);
  margin: 0 4px;
  flex: 0 0 auto;
}

/* zoom percentage button */
#zoom-percent-btn {
  width: 56px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

/* ---------- welcome hint ---------- */
#welcome-hint {
  position: absolute;
  left: 50%;
  bottom: 96px;
  transform: translateX(-50%);
  text-align: center;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  opacity: 0.5;
  pointer-events: none;
  z-index: 10;
  transition: opacity 0.3s ease;
  white-space: nowrap;
}

/* ---------- properties panel ---------- */
#properties-panel {
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  flex-direction: column;
  width: 224px;
  max-height: calc(100vh - 130px);
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px 12px 12px;
  gap: 0;
  align-items: stretch;
  display: flex;
}
#properties-panel::-webkit-scrollbar { width: 8px; }
#properties-panel::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 4px; }

.panel-section { padding: 8px 0 4px; }
.panel-row {
  display: flex;
  align-items: center;
  min-height: 32px;
  gap: 2px;
}
.panel-row + .panel-row { margin-top: 2px; }
.panel-label {
  flex: 1 1 auto;
  font-size: 12px;
  font-weight: 600;
  color: var(--panel-label);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.panel-row-icons {
  display: flex;
  gap: 2px;
  flex: 1 1 auto;
  justify-content: flex-end;
}
.panel-row-icons.left { justify-content: flex-start; }

.icon-btn {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--icon-fill);
  cursor: pointer;
  padding: 0;
}
.icon-btn:hover { background: var(--btn-hover); }
.icon-btn.active { background: var(--btn-active); color: var(--btn-active-text); }
.icon-btn svg { width: 18px; height: 18px; display: block; }
.icon-btn.small { width: 26px; height: 26px; }
.icon-btn.small svg { width: 16px; height: 16px; }

/* color swatch button */
.swatch-btn {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: 1px solid var(--chip-border);
  cursor: pointer;
  padding: 2px;
  background: var(--island-bg);
  display: inline-flex;
  align-items: stretch;
  justify-content: stretch;
}
.swatch-btn:hover { border-color: var(--selection); }
.swatch-inner {
  flex: 1;
  border-radius: 4px;
  display: grid;
  place-items: center;
  font-size: 10px;
  font-weight: 700;
  color: #1b1b1b;
  overflow: hidden;
}
.swatch-inner.checker {
  background-image: linear-gradient(45deg, #ccc 25%, transparent 25%),
    linear-gradient(-45deg, #ccc 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #ccc 75%),
    linear-gradient(-45deg, transparent 75%, #ccc 75%);
  background-size: 8px 8px;
  background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
  background-color: #fff;
}
.swatch-inner.mixed {
  background: conic-gradient(#e03131 0 25%, #1971c2 0 50%, #2f9e44 0 75%, #f08c00 0);
}

/* value chips (font size, opacity) */
.chip-btn {
  min-width: 46px;
  height: 30px;
  padding: 0 8px;
  border-radius: 6px;
  border: 1px solid var(--chip-border);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 12px;
}
.chip-btn:hover { border-color: var(--selection); }
.chip-btn .unit { opacity: 0.6; font-size: 10px; }

/* ---------- popovers ---------- */
.popover {
  position: absolute;
  background: var(--overlay-bg);
  border: 1px solid var(--overlay-border);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  padding: 8px;
  min-width: 160px;
}
body.theme-dark .popover { box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5); }

.color-grid {
  display: grid;
  grid-template-columns: repeat(5, 24px);
  gap: 6px;
}
.color-cell {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  border: 1px solid var(--chip-border);
  cursor: pointer;
  padding: 0;
  position: relative;
}
.color-cell:hover { outline: 2px solid var(--selection); outline-offset: 1px; }
.color-cell.active { outline: 2px solid var(--selection); outline-offset: 1px; }

.popover-sep { height: 1px; background: var(--overlay-border); margin: 8px 0; }
.popover-title { font-size: 11px; font-weight: 700; opacity: 0.7; margin: 0 0 6px; }

.range-wrap { padding: 4px 6px 6px; display: flex; align-items: center; gap: 8px; }
.range-wrap input[type="range"] { width: 110px; accent-color: var(--selection); }
.range-value { font-size: 12px; min-width: 30px; text-align: right; font-variant-numeric: tabular-nums; }

.popover-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border: none;
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
  text-align: left;
  white-space: nowrap;
}
.popover-menu-item:hover { background: var(--btn-hover); }
.popover-menu-item.danger { color: var(--danger); }
.popover-menu-item svg { width: 18px; height: 18px; flex: 0 0 auto; }
.popover-menu-item .kbd-hint { margin-left: auto; opacity: 0.5; font-size: 11px; }

.submenu-arrow { margin-left: auto; opacity: 0.6; }

/* ---------- menus / context menu ---------- */
.menu {
  position: absolute;
  background: var(--overlay-bg);
  border: 1px solid var(--overlay-border);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  z-index: 120;
  min-width: 200px;
  padding: 6px;
}
.menu-sep { height: 1px; background: var(--overlay-border); margin: 5px 4px; }
.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border: none;
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13.5px;
  color: var(--text-primary);
  text-align: left;
  white-space: nowrap;
}
.menu-item:hover { background: var(--btn-hover); }
.menu-item.disabled { opacity: 0.4; pointer-events: none; }
.menu-item svg { width: 18px; height: 18px; flex: 0 0 auto; }
.menu-item .shortcut { margin-left: auto; opacity: 0.5; font-size: 11px; padding-left: 18px; }

.menu-header {
  padding: 8px 10px 4px;
  font-size: 11px;
  font-weight: 700;
  opacity: 0.6;
}

/* ---------- dialogs / modals ---------- */
#modal-layer {
  position: absolute;
  inset: 0;
  z-index: 200;
  background: rgba(50, 50, 55, 0.28);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}
.modal {
  background: var(--overlay-bg);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--overlay-border);
  min-width: 340px;
  max-width: min(92vw, 560px);
  max-height: 76vh;
  overflow-y: auto;
  padding: 18px 20px;
}
.modal h3 { margin: 0 0 14px; font-size: 18px; font-weight: 600; }
.modal .modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 18px;
}
.modal .modal-actions.spread { justify-content: space-between; }

.modal-field { display: flex; align-items: center; gap: 10px; margin: 10px 0; }
.modal-field label { font-size: 13px; min-width: 110px; }
.modal-field input[type="text"], .modal-field input[type="number"], .modal-field select {
  flex: 1;
  background: var(--input-bg);
  color: var(--text-primary);
  border: 1px solid var(--input-border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 13px;
  font-family: inherit;
}
.modal-field input:focus, .modal-field select:focus { outline: 2px solid var(--btn-active); border-color: transparent; }

.modal-radio-row { display: flex; gap: 6px; }
.modal-radio-row button {
  flex: 1;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--input-border);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 13px;
}
.modal-radio-row button.active { background: var(--btn-active); color: var(--btn-active-text); border-color: transparent; }

.primary-btn, .default-btn {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
}
.primary-btn { background: var(--selection); border: none; color: #fff; }
.primary-btn:hover { filter: brightness(1.08); }
.default-btn { background: transparent; border: 1px solid var(--input-border); color: var(--text-primary); }
.default-btn:hover { background: var(--btn-hover); }
.default-btn.danger-btn { color: var(--danger); }

/* shortcuts dialog */
.shortcut-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 24px; font-size: 12.5px; }
.shortcut-row { display: flex; align-items: center; justify-content: space-between; padding: 5px 0; gap: 12px; }
.shortcut-row .keys { opacity: 0.7; white-space: nowrap; font-variant-numeric: tabular-nums; }
kbd {
  display: inline-block;
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid var(--input-border);
  border-bottom-width: 2px;
  background: var(--input-bg);
  font-family: inherit;
  font-size: 11px;
  margin-left: 3px;
}

/* ---------- text editor overlay ---------- */
#text-editor-root {
  position: absolute;
  z-index: 30;
  margin: 0;
  padding: 0;
  border: none;
  overflow: hidden;
  pointer-events: none;
}
#text-editor {
  position: absolute;
  inset: 0;
  display: block;
  margin: 0;
  padding: 2px;
  border: none;
  outline: none;
  resize: none;
  background: transparent;
  overflow: hidden;
  white-space: pre;
  -webkit-text-fill-color: transparent;
  caret-color: var(--text-primary);
  line-height: 1.25;
}
body.theme-dark #text-editor { caret-color: #e3e3e3; }

/* ---------- toast ---------- */
#toast-layer {
  position: absolute;
  bottom: 64px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  pointer-events: none;
}
.toast {
  background: var(--island-bg);
  color: var(--text-primary);
  box-shadow: var(--island-shadow);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  animation: toast-in 0.15s ease-out;
}
@keyframes toast-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- misc ---------- */
.hidden { display: none !important; }

/* tooltip via title attr is native; add subtle fade layer for popovers if needed */

/* ---------- small screens ---------- */
@media (max-width: 640px) {
  #toolbar { max-width: calc(100vw - 16px); }
  #main-menu-island { top: 8px; left: 8px; }
  #toolbar { top: auto; bottom: 72px; max-width: calc(100vw - 16px); }
  #properties-panel {
    left: 8px;
    right: 8px;
    top: auto;
    bottom: 8px;
    transform: none;
    width: auto;
    max-height: 42vh;
  }
  #bottom-left { left: 8px; bottom: 8px; }
  #welcome-hint { bottom: 140px; font-size: 14px; }
}