:root {
  /* ---- palette ---- */
  --void: #1a1d24;
  --void-grid: rgba(167, 182, 210, 0.085);
  --void-grid-major: rgba(167, 182, 210, 0.16);
  --panel: rgba(30, 34, 42, 0.78);
  --panel-solid: #20242c;
  --panel-border: rgba(255, 255, 255, 0.07);
  --ink: #e8eaf0;
  --ink-dim: #8b93a6;
  --ink-faint: #5b6175;
  --accent: #6fe3c8;
  --accent-rgb: 111, 227, 200;
  --panel-hover: #262b34;
  /* add this line */
  --accent-dim: rgba(111, 227, 200, 0.16);
  --amber: #ffb36b;
  --amber-dim: rgba(255, 179, 107, 0.16);
  --danger: #ff7b72;
  --danger-dim: rgba(255, 123, 114, 0.14);
  --string-color: rgba(232, 195, 120, 0.88);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius: 10px;
  --radius-sm: 7px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  overflow: hidden;
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

button,
input,
textarea,
select {
  font-family: inherit;
}

::selection {
  background: var(--accent-dim);
  color: var(--ink);
}

#app {
  height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
}

/* ============================================================
   TOP BAR
   ============================================================ */
#topbar {
  height: 52px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  background: var(--panel-solid);
  border-bottom: 1px solid var(--panel-border);
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
}

.brand-mark {
  color: var(--accent);
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  letter-spacing: 0.2px;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  margin-top: 2px;
}

.topbar-center {
  display: flex;
  align-items: center;
  gap: 6px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

#zoom-readout {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-dim);
  min-width: 44px;
  text-align: center;
}

/* ---- Shared topbar button ---- */
.tbtn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--ink-dim);
  font-size: 12.5px;
  font-weight: 500;
  padding: 7px 11px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .12s ease, color .12s ease, border-color .12s ease;
  white-space: nowrap;
}

.tbtn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink);
}

.tbtn:active {
  transform: translateY(1px);
}

.tbtn.icon {
  padding: 7px;
}

.tbtn.danger:hover {
  background: var(--danger-dim);
  color: var(--danger);
}

#btn-new-frame {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: rgba(var(--accent-rgb), 0.25);
  /* was rgba(111, 227, 200, 0.25) */
}

#btn-new-frame:hover {
  background: rgba(var(--accent-rgb), 0.26);
  /* was rgba(111, 227, 200, 0.26) */
}

.tbtn-divider {
  width: 1px;
  height: 20px;
  background: var(--panel-border);
  margin: 0 4px;
}

/* ============================================================
   CUSTOM MODE DROPDOWN
   ============================================================ */
.mode-dropdown {
  position: relative;
}

.mode-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--panel-border);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 500;
  padding: 7px 11px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: background .12s ease, border-color .15s ease, color .15s ease;
  min-width: 122px;
  outline: none;
}

.mode-dropdown-btn:hover {
  background: rgba(255, 255, 255, 0.075);
  border-color: rgba(255, 255, 255, 0.13);
}

.mode-dropdown-btn:focus-visible {
  border-color: var(--accent);
}

/* small dot indicator inside trigger */
.mode-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink-faint);
  flex-shrink: 0;
  transition: background .15s ease;
}

.mode-dropdown-btn[data-mode="edit"] .mode-dot {
  background: var(--accent);
}

.mode-dropdown-btn[data-mode="view"] .mode-dot {
  background: var(--amber);
}

#mode-dropdown-label {
  flex: 1;
  text-align: left;
}

.dropdown-chevron {
  color: var(--ink-faint);
  flex-shrink: 0;
  transition: transform .18s ease, color .15s ease;
}

.mode-dropdown-btn[aria-expanded="true"] .dropdown-chevron {
  transform: rotate(180deg);
}

/* Menu */
.mode-dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--panel-solid);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: var(--radius-sm);
  list-style: none;
  margin: 0;
  padding: 4px;
  z-index: 200;
  min-width: 148px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.55), 0 1px 0 rgba(255, 255, 255, 0.04) inset;
  opacity: 0;
  transform: translateY(-6px) scale(0.97);
  pointer-events: none;
  transition: opacity .15s ease, transform .15s ease;
}

.mode-dropdown-menu.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.mode-dropdown-option {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: 5px;
  font-family: var(--font-body);
  font-size: 12.5px;
  cursor: pointer;
  color: var(--ink-dim);
  transition: background .1s ease, color .1s ease;
  list-style: none;
}

.mode-dropdown-option:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink);
}

.mode-dropdown-option.selected {
  color: var(--ink);
}

.mode-dropdown-option[data-value="edit"].selected {
  color: var(--accent);
}

.mode-dropdown-option[data-value="view"].selected {
  color: var(--amber);
}

.mode-dropdown-option .option-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink-faint);
  flex-shrink: 0;
  transition: background .12s ease;
}

.mode-dropdown-option[data-value="edit"].selected .option-dot {
  background: var(--accent);
}

.mode-dropdown-option[data-value="view"].selected .option-dot {
  background: var(--amber);
}

.option-label {
  flex: 1;
}

.option-check {
  color: inherit;
  opacity: 0;
  transition: opacity .12s ease;
  flex-shrink: 0;
}

.mode-dropdown-option.selected .option-check {
  opacity: 1;
}

/* View-mode tint on trigger */
body.view-mode .mode-dropdown-btn {
  color: var(--amber);
  border-color: rgba(255, 179, 107, 0.35);
  background: var(--amber-dim);
}

body.view-mode .mode-dropdown-btn:hover {
  background: rgba(255, 179, 107, 0.24);
}

body.view-mode .mode-dropdown-btn .dropdown-chevron {
  color: var(--amber);
}

/* ============================================================
   CUSTOM TOOLTIP
   ============================================================ */
#tooltip {
  position: fixed;
  z-index: 9999;
  background: var(--panel-solid);
  border: 1px solid rgba(255, 255, 255, 0.11);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1px;
  padding: 5px 10px;
  border-radius: 6px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(-50%) translateY(3px);
  transition: opacity .14s ease, transform .14s ease;
}

#tooltip.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Up-pointing arrow */
#tooltip::before {
  content: '';
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 7px;
  height: 7px;
  background: var(--panel-solid);
  border-top: 1px solid rgba(255, 255, 255, 0.11);
  border-left: 1px solid rgba(255, 255, 255, 0.11);
}

/* ============================================================
   MAIN LAYOUT
   ============================================================ */
#main {
  flex: 1;
  display: flex;
  min-height: 0;
}

/* ============================================================
   SIDE PANELS
   ============================================================ */
#left-panel,
#right-panel {
  width: 252px;
  flex-shrink: 0;
  background: var(--panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-right: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  z-index: 15;
  overflow: hidden;
}

#right-panel {
  border-right: none;
  border-left: 1px solid var(--panel-border);
}

.project-header {
  padding: 16px 14px 12px;
  border-bottom: 1px solid var(--panel-border);
  flex-shrink: 0;
}

.project-title-input {
  width: 100%;
  background: transparent;
  border: 1px solid transparent;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.1px;
  padding: 6px 7px;
  margin: -6px -7px;
  border-radius: var(--radius-sm);
  outline: none;
  cursor: text;
  transition: background .12s ease, border-color .12s ease;
}

.project-title-input::placeholder {
  color: var(--ink-faint);
  font-weight: 700;
}

.project-title-input:hover {
  background: rgba(255, 255, 255, 0.04);
}

.project-title-input:focus {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(var(--accent-rgb), 0.3);
  /* was rgba(111, 227, 200, 0.3) */
}

.panel-section {
  padding: 0 14px 16px;
  overflow-y: auto;
}

.panel-section-bottom {
  margin-top: auto;
  border-top: 1px solid var(--panel-border);
  flex-shrink: 0;
}

.panel-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--ink-faint);
  padding: 16px 14px 10px;
  flex-shrink: 0;
}

/* panel-section already has padding, so .panel-label inside it gets extra space from padding */
.panel-section .panel-label {
  padding: 16px 0 10px;
}

.hint-row {
  font-size: 11.5px;
  color: var(--ink-faint);
  margin-bottom: 7px;
  display: flex;
  gap: 6px;
  align-items: center;
}

.hint-pin-icon {
  font-size: 13px;
  color: var(--amber);
  line-height: 1;
}

kbd {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-dim);
}

/* ---- Frame list ---- */
.frame-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.frame-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .12s ease;
  position: relative;
}

.frame-row:hover {
  background: rgba(255, 255, 255, 0.045);
}

.frame-row.selected {
  background: var(--accent-dim);
  border-color: rgba(var(--accent-rgb), 0.25);
  /* was rgba(111, 227, 200, 0.25) */
}

/* Depth indentation for subframes */
.frame-row.depth-1 {
  padding-left: 20px;
}

.frame-row.depth-2 {
  padding-left: 32px;
}

.frame-row.depth-3 {
  padding-left: 44px;
}

.frame-connector {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  flex-shrink: 0;
  margin-right: -2px;
  opacity: 0.7;
}

.frame-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.frame-num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-faint);
  width: 18px;
  flex-shrink: 0;
}

.frame-title {
  font-size: 12.5px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ink);
}

.frame-row.selected .frame-title {
  font-weight: 500;
}

.frame-del {
  opacity: 0;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  color: var(--ink-faint);
}

.frame-row:hover .frame-del {
  opacity: 1;
}

.frame-del:hover {
  background: var(--danger-dim);
  color: var(--danger);
}

.empty-frames {
  display: none;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-faint);
  padding: 10px 2px;
}

.empty-frames.show {
  display: block;
}

/* ---- Inspector ---- */
.inspector-empty {
  padding: 30px 18px;
  text-align: center;
  color: var(--ink-faint);
}

.inspector-empty p {
  font-size: 12.5px;
  line-height: 1.6;
  margin-top: 12px;
}

.inspector-content {
  padding: 4px 14px 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.inspector-content.hidden,
.inspector-empty.hidden {
  display: none;
}

.field label {
  display: block;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ink-faint);
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.field input[type=text],
.field input[type=number],
.field textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--panel-border);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 8px 9px;
  font-size: 13px;
  outline: none;
  resize: vertical;
  transition: border-color .12s ease;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--accent);
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.field input:disabled,
.field textarea:disabled,
.field select:disabled {
  opacity: 0.55;
  cursor: default;
}

.field select {
  width: 100%;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--panel-border);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 8px 9px;
  font-size: 13px;
  outline: none;
  transition: border-color .12s ease;
}

.field select:focus {
  border-color: var(--accent);
}

.swatch-row {
  display: flex;
  gap: 8px;
}

.swatch {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .12s ease, border-color .12s ease;
}

.swatch:hover {
  transform: scale(1.12);
}

.swatch.active {
  border-color: var(--ink);
}

.btn-block {
  width: 100%;
  padding: 9px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-dim);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  transition: background .12s ease, color .12s ease;
}

.btn-block.danger:hover {
  background: var(--danger-dim);
  color: var(--danger);
  border-color: rgba(255, 123, 114, 0.3);
}

/* ============================================================
   CANVAS / VOID
   ============================================================ */
#canvas {
  flex: 1;
  position: relative;
  overflow: hidden;
  background-color: var(--void);
  background-image:
    radial-gradient(circle, var(--void-grid-major) 1.6px, transparent 1.6px),
    radial-gradient(circle, var(--void-grid) 1.2px, transparent 1.2px);
  background-size: 160px 160px, 32px 32px;
  background-position: 0 0, 0 0;
  cursor: default;
}

#canvas.panning {
  cursor: grabbing;
}

#canvas.space-down {
  cursor: grab;
}

#world {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  transform-origin: 0 0;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  position: absolute;
  background: linear-gradient(180deg, #262b34 0%, #21252d 100%);
  border-radius: var(--radius);
  border: 1.5px solid var(--card-color-dim, rgba(255, 255, 255, 0.07));
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 1px 0 rgba(255, 255, 255, 0.03) inset;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 160px;
  min-height: 120px;
  transition: box-shadow .15s ease, border-color .15s ease;
}

.card:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  border-color: var(--card-color-mid, rgba(255, 255, 255, 0.15));
}

.card.selected {
  border-color: var(--card-color, var(--accent));
  box-shadow: 0 0 0 3px var(--card-color-glow, var(--accent-dim)), 0 10px 30px rgba(0, 0, 0, 0.45);
}

/* Drop target highlight when dragging a pin string */
.card.conn-target {
  border-color: var(--amber) !important;
  box-shadow: 0 0 0 3px rgba(255, 179, 107, 0.25), 0 10px 30px rgba(0, 0, 0, 0.45) !important;
}

/* Invalid target (already has a parent, would form a cycle) */
.card.conn-invalid {
  border-color: var(--danger) !important;
  box-shadow: 0 0 0 3px var(--danger-dim), 0 10px 30px rgba(0, 0, 0, 0.45) !important;
}

.card {
  --frame-line-width: 4px;
  --frame-line-color: var(--card-color, var(--accent));
}

.card-tag {
  position: absolute;
  background: var(--frame-line-color);
}

.card[data-frame-line="left"] .card-tag {
  top: 0;
  bottom: 0;
  left: 0;
  right: auto;
  width: var(--frame-line-width);
  height: auto;
  display: block;
}

.card[data-frame-line="right"] .card-tag {
  top: 0;
  bottom: 0;
  right: 0;
  left: auto;
  width: var(--frame-line-width);
  height: auto;
  display: block;
}

.card[data-frame-line="up"] .card-tag {
  left: 0;
  right: 0;
  top: 0;
  bottom: auto;
  width: auto;
  height: var(--frame-line-width);
  display: block;
}

.card[data-frame-line="down"] .card-tag {
  left: 0;
  right: 0;
  top: auto;
  bottom: 0;
  width: auto;
  height: var(--frame-line-width);
  display: block;
}

.card[data-frame-line="none"] .card-tag {
  display: none;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 8px 7px 14px;
  cursor: grab;
  flex-shrink: 0;
}

/* ============================================================
   FRAME LINE POSITION SELECTOR
   ============================================================ */

.frame-line-selector {
  display: flex;
  gap: 6px;
  flex-wrap: nowrap;
}

.frame-line-btn {
  flex: 1;
  padding: 7px 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-dim);
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  transition:
    background .12s ease,
    border-color .12s ease,
    color .12s ease;
}

.frame-line-btn:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--ink);
}

.frame-line-btn.active {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: rgba(var(--accent-rgb), 0.32);
  /* was rgba(111, 227, 200, 0.32) */
}

body.view-mode .frame-line-btn {
  pointer-events: none;
  opacity: 0.65;
}

.card-header:active {
  cursor: grabbing;
}

.card-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-faint);
  background: rgba(0, 0, 0, 0.25);
  border-radius: 4px;
  padding: 2px 5px;
  flex-shrink: 0;
}

.card-title {
  flex: 1;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13.5px;
  color: var(--ink);
  background: transparent;
  border: none;
  outline: none;
  cursor: text;
  user-select: text;
  min-width: 0;
}

.card-title::placeholder {
  color: var(--ink-faint);
  font-weight: 500;
}

/* ---- Pin button (drag-to-connect) ---- */
.card-pin-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  flex-shrink: 0;
  background: transparent;
  border: 1px solid transparent;
  padding: 0;
  cursor: grab;
  opacity: 0;
  transition: opacity .15s ease, background .15s ease, border-color .15s ease, transform .12s ease;
}

.card:hover .card-pin-btn,
.card.selected .card-pin-btn {
  opacity: 1;
}

.card-pin-btn:hover {
  background: rgba(212, 137, 60, 0.18);
  border-color: rgba(212, 137, 60, 0.4);
  transform: scale(1.12);
}

.card-pin-btn:active {
  cursor: grabbing;
  transform: scale(0.9);
}

.card-pin-btn svg {
  display: block;
  pointer-events: none;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.35));
}

.card-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 4px 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.card-body::-webkit-scrollbar {
  width: 6px;
}

.card-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
}

.card-empty-hint {
  font-size: 11.5px;
  color: var(--ink-faint);
  font-style: italic;
  padding: 8px 2px;
}

/* ---- Blocks ---- */
.block {
  position: relative;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  overflow: hidden;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 8px 10px;
}

.block-controls {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transition: opacity .12s ease;
  z-index: 2;
}

.block:hover .block-controls {
  opacity: 1;
}

.block-drag-handle,
.block-del {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  color: var(--ink-faint);
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  background: rgba(0, 0, 0, 0.32);
  transition: background .12s ease, color .12s ease;
}

.block-drag-handle {
  cursor: grab;
}

.block-drag-handle svg {
  display: block;
  pointer-events: none;
}

.block-drag-handle:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--ink);
}

.block-del:hover {
  background: var(--danger-dim);
  color: var(--danger);
}

/* Standalone variant — used only by the "paste a URL" form, where
   there's no list position to drag yet, so it skips the handle. */
.block-del.standalone {
  position: absolute;
  top: 6px;
  right: 6px;
  opacity: 0;
  transition: opacity .12s ease, background .12s ease, color .12s ease;
}

.block:hover .block-del.standalone {
  opacity: 1;
}

.block.block-dragging {
  opacity: 0.55;
  border-color: rgba(var(--accent-rgb), 0.4);
  cursor: grabbing;
}

.block-text {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ink);
  outline: none;
  cursor: text;
  user-select: text;
  min-height: 1.4em;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  padding-right: 52px;
}

.block-text:empty::before {
  content: attr(data-placeholder);
  color: var(--ink-faint);
}

.block-image img {
  width: 100%;
  display: block;
  border-radius: 4px;
  pointer-events: none;
}

.block-link {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-width: 0;
  text-decoration: none;
  cursor: pointer;
  padding-right: 52px;
}

.block-link .link-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  flex-shrink: 0;
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.block-link .link-text {
  min-width: 0;
  flex: 1;
  overflow: hidden;
}

.block-link .link-title {
  font-size: 12px;
  color: var(--ink);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.block-link .link-url {
  font-size: 10.5px;
  color: var(--ink-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-mono);
}

.block-link-input {
  display: flex;
  gap: 6px;
  width: 100%;
  min-width: 0;
}

.block-link-input input {
  flex: 1;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--panel-border);
  color: var(--ink);
  border-radius: 5px;
  padding: 6px 8px;
  font-size: 12px;
  outline: none;
}

.block-link-input input:focus {
  border-color: var(--accent);
}

.block-link-input button {
  background: var(--accent-dim);
  color: var(--accent);
  border: none;
  border-radius: 5px;
  padding: 0 10px;
  font-size: 12px;
  cursor: pointer;
  font-weight: 600;
}

/* ---- Card toolbar ---- */
.card-toolbar {
  flex-shrink: 0;
  display: flex;
  gap: 4px;
  padding: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(0, 0, 0, 0.15);
}

.card-toolbar button {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border: none;
  color: var(--ink-faint);
  padding: 6px 4px;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: background .12s ease, color .12s ease;
}

.card-toolbar button:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--accent);
}

/* ---- Resize handle ---- */
.resize-handle {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 18px;
  height: 18px;
  cursor: nwse-resize;
}

.resize-handle::after {
  content: '';
  position: absolute;
  right: 5px;
  bottom: 5px;
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--ink-faint);
  border-bottom: 2px solid var(--ink-faint);
  border-radius: 0 0 2px 0;
  opacity: 0.5;
}

.card:hover .resize-handle::after {
  opacity: 0.9;
}

/* ============================================================
   SVG CONNECTION STRINGS
   ============================================================ */
#conn-svg {
  position: absolute;
  left: 0;
  top: 0;
  overflow: visible;
  pointer-events: none;
  z-index: 50;
}

#conn-svg.dragging * {
  pointer-events: none !important;
}

#conn-svg-back.dragging * {
  pointer-events: none !important;
}

/* Hover hint that a thread is now click-to-cut */
.conn-group .conn-hit {
  cursor: pointer;
}

.conn-group:hover .conn-thread {
  stroke: rgba(255, 123, 114, 0.92);
}

.conn-group:hover .conn-shimmer {
  stroke: rgba(255, 123, 114, 0.38);
}

/* ============================================================
   CONNECTION CONTEXT MENU
   ============================================================ */
.conn-context-menu {
  position: fixed;
  z-index: 300;
  background: var(--panel-solid);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: var(--radius-sm);
  margin: 0;
  padding: 4px;
  min-width: 198px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.55), 0 1px 0 rgba(255, 255, 255, 0.04) inset;
  opacity: 0;
  transform: translateY(-6px) scale(0.97);
  pointer-events: none;
  transition: opacity .15s ease, transform .15s ease;
}

.conn-context-menu.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.conn-context-menu-item {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 8px 10px;
  border-radius: 5px;
  border: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 12.5px;
  text-align: left;
  cursor: pointer;
  color: var(--ink-dim);
  transition: background .1s ease, color .1s ease;
}

.conn-context-menu-item:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink);
}

.conn-context-menu-item.active {
  color: var(--accent);
}

.conn-context-menu-item:disabled {
  cursor: default;
  opacity: 0.55;
}

.conn-context-menu-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink-faint);
  flex-shrink: 0;
  transition: background .12s ease;
}

.conn-context-menu-item.active .conn-context-menu-dot {
  background: var(--accent);
}

.conn-context-menu-label {
  flex: 1;
}

.conn-context-menu-check {
  color: inherit;
  opacity: 0;
  transition: opacity .12s ease;
  flex-shrink: 0;
  font-size: 11px;
}

.conn-context-menu-item.active .conn-context-menu-check {
  opacity: 1;
}

.conn-context-menu-divider {
  height: 1px;
  background: var(--panel-border);
  margin: 4px 6px;
}

/* The destination tack pops when a string first snaps onto its target */
.tack-pop {
  transform-box: fill-box;
  transform-origin: center;
  animation: tackPop .42s cubic-bezier(.34, 1.56, .64, 1);
}

@keyframes tackPop {
  0% {
    transform: scale(0.3);
    opacity: 0.3;
  }

  55% {
    transform: scale(1.4);
    opacity: 1;
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ============================================================
   MARQUEE / BOX SELECTION
   ============================================================ */
#canvas.selecting {
  cursor: crosshair;
}

.selection-box {
  position: absolute;
  border: 1px solid rgba(var(--accent-rgb), 0.9);
  background: linear-gradient(180deg, rgba(var(--accent-rgb), 0.16), rgba(255, 255, 255, 0.03));
  box-shadow: 0 0 0 1px rgba(var(--accent-rgb), 0.18), 0 12px 28px rgba(0, 0, 0, 0.20);
  border-radius: 12px;
  pointer-events: none;
  z-index: 80;
  backdrop-filter: blur(2px);
}

.selection-box::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.22);
}

.card.selection-preview {
  outline: 2px dashed rgba(255, 255, 255, 0.65);
  outline-offset: 3px;
}

.card.selection-preview.conn-target {
  outline-color: rgba(var(--accent-rgb), 0.9) !important;
}

.frame-row.selection-preview {
  background: rgba(255, 255, 255, 0.045);
}

.inspector-empty.multi-lock p {
  color: var(--amber);
}

/* ============================================================
   VIEW MODE — hide editorial chrome
   ============================================================ */
body.view-mode #btn-new-frame,
body.view-mode #btn-clear,
body.view-mode .card-toolbar,
body.view-mode .block-controls,
body.view-mode .frame-del,
body.view-mode .resize-handle,
body.view-mode #insp-color-field,
body.view-mode #btn-delete-frame,
body.view-mode .hint-edit-only,
body.view-mode .card-pin-btn {
  display: none !important;
}

body.view-mode .card-header {
  cursor: default;
}

body.view-mode .card-header:active {
  cursor: default;
}

body.view-mode .card-title {
  cursor: default;
}

body.view-mode .block-text {
  cursor: default;
}

body.view-mode .swatch {
  cursor: default;
}

body.view-mode .project-title-input {
  cursor: default;
}

body.view-mode .project-title-input:hover {
  background: transparent;
}

/* ==============
   MARKDOWN
   ============== */

.loom-md-source {
  min-width: 0;
}

body.view-mode .loom-md-source {
  display: none !important;
}

body:not(.view-mode) .loom-md-preview {
  display: none !important;
}

.loom-md-preview {
  width: 100%;
  min-width: 0;
  color: var(--ink);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.loom-md-title-preview {
  flex: 1;
  min-width: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13.5px;
  line-height: 1.25;
  white-space: normal;
}

.loom-md-notes-preview {
  min-height: 84px;
  font-size: 13px;
  line-height: 1.55;
  white-space: normal;
}

.loom-md-block-preview {
  font-size: 12.5px;
  line-height: 1.55;
}

.loom-md-rendered {
  width: 100%;
  min-height: inherit;
  box-sizing: border-box;
}

.block-text.loom-md-rendered {
  white-space: normal;
}

.loom-md-preview p,
.loom-md-preview ul,
.loom-md-preview ol,
.loom-md-preview blockquote,
.loom-md-preview pre,
.loom-md-preview h1,
.loom-md-preview h2,
.loom-md-preview h3,
.loom-md-preview h4,
.loom-md-preview h5,
.loom-md-preview h6 {
  margin: 0 0 0.6em;
}

.loom-md-preview ul,
.loom-md-preview ol {
  padding-left: 1.25em;
}

.loom-md-preview blockquote {
  border-left: 3px solid var(--panel-border);
  padding-left: 10px;
  color: var(--ink-dim);
}

.loom-md-preview pre {
  background: rgba(0, 0, 0, 0.28);
  padding: 10px;
  border-radius: 6px;
  overflow: auto;
}

.loom-md-preview code {
  font-family: var(--font-mono);
  font-size: 0.95em;
}

.loom-md-preview a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}


/* ==================
   LOOM THEEME
   ================== */

.loom-theme-root {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-family: var(--font-body, "Inter", sans-serif);
}

.loom-theme-fab {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--panel-solid, #20242c);
  color: var(--ink, #e8eaf0);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.4);
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.loom-theme-fab:hover {
  background: var(--panel-hover, rgba(255, 255, 255, 0.07));
  color: var(--ink-dim, #c7cbd6);
}

.loom-theme-fab svg {
  transition: transform 0.35s ease;
}

.loom-theme-root.open .loom-theme-fab svg {
  transform: rotate(70deg);
}

.loom-theme-panel {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  width: 220px;
  background: var(--panel-solid, #20242c);
  border: 1px solid var(--panel-border, rgba(255, 255, 255, 0.1));
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  padding: 8px;
  transform-origin: bottom right;
  transform: scale(0.85) translateY(8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.18s ease, opacity 0.15s ease;
}

.loom-theme-root.open .loom-theme-panel {
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: all;
}

.loom-theme-panel-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--ink-faint, #5b6175);
  padding: 6px 8px 8px;
}

.loom-theme-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.loom-theme-option {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  background: transparent;
  border: none;
  border-radius: 7px;
  padding: 7px 8px;
  color: var(--ink-dim, #c7cbd6);
  font-size: 12.5px;
  cursor: pointer;
  text-align: left;
}

.loom-theme-option:hover {
  background: rgba(255, 255, 255, 0.05);
}

.loom-theme-option.active {
  background: var(--accent-dim, rgba(111, 227, 200, 0.14));
  color: var(--ink, #e8eaf0);
}

.loom-theme-swatch {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.loom-theme-option-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.loom-theme-option-check {
  opacity: 0;
  font-size: 11px;
  color: var(--accent, #6fe3c8);
}

.loom-theme-option.active .loom-theme-option-check {
  opacity: 1;
}

.loom-theme-option-remove {
  opacity: 0;
  font-size: 13px;
  color: var(--ink-dim, #8b93a6);
  padding: 0 2px;
  border-radius: 4px;
}

.loom-theme-option:hover .loom-theme-option-remove {
  opacity: 1;
}

.loom-theme-option-remove:hover {
  color: var(--danger, #ff7b72);
  background: rgba(255, 123, 114, 0.14);
}

.loom-theme-divider {
  height: 1px;
  background: var(--panel-border, rgba(255, 255, 255, 0.08));
  margin: 6px 4px;
}

.loom-theme-add-btn {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: 7px;
  color: var(--ink-dim, #8b93a6);
  font-size: 12px;
  padding: 7px 8px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.loom-theme-add-btn:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--ink, #e8eaf0);
}

.loom-theme-hint {
  font-size: 10.5px;
  line-height: 1.4;
  color: var(--ink-faint, #5b6175);
  padding: 6px 8px 2px;
}

/* import/review dialog */
.loom-theme-import-dialog {
  border: none;
  padding: 0;
  background: transparent;
  max-width: none;
  width: min(460px, calc(100vw - 24px));
  color: var(--ink, #e8eaf0);
}

.loom-theme-import-dialog::backdrop {
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
}

.loom-theme-import-panel {
  background: var(--panel-solid, #20242c);
  border: 1px solid var(--panel-border, rgba(255, 255, 255, 0.1));
  border-radius: 16px;
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.58);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.loom-theme-import-title {
  font-family: var(--font-display, "Space Grotesk", sans-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink, #e8eaf0);
}

.loom-theme-import-subtitle {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ink-faint, #5b6175);
}

.loom-theme-import-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.loom-theme-import-field > span {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ink-faint, #5b6175);
  font-family: var(--font-mono, "JetBrains Mono", monospace);
}

.loom-theme-import-field input[type="text"] {
  width: 100%;
  border: 1px solid var(--panel-border, rgba(255, 255, 255, 0.1));
  background: rgba(0, 0, 0, 0.22);
  color: var(--ink, #e8eaf0);
  border-radius: 10px;
  padding: 10px 12px;
  outline: none;
  font: inherit;
}

.loom-theme-import-field input[type="text"]:focus {
  border-color: var(--accent, #6fe3c8);
}

.loom-theme-import-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.loom-theme-import-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ink-faint, #5b6175);
  font-family: var(--font-mono, "JetBrains Mono", monospace);
}

.loom-theme-import-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 28px;
}

.loom-theme-import-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12) inset;
  transition: transform 0.12s ease, border-color 0.12s ease;
}

.loom-theme-import-swatch:hover {
  transform: scale(1.08);
}

.loom-theme-import-swatch.active {
  border-color: var(--ink, #e8eaf0);
}

.loom-theme-import-no-swatches {
  font-size: 12px;
  color: var(--ink-faint, #5b6175);
}

.loom-theme-import-color-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.loom-theme-import-color-row input[type="color"] {
  width: 46px;
  height: 36px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

.loom-theme-import-color-value {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 12px;
  color: var(--ink-dim, #c7cbd6);
}

.loom-theme-import-preview {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--panel-border, rgba(255, 255, 255, 0.1));
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  padding: 10px 12px;
}

.loom-theme-import-preview-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.18) inset;
}

.loom-theme-import-preview-text {
  font-size: 12.5px;
  color: var(--ink, #e8eaf0);
}

.loom-theme-import-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}

.loom-theme-import-btn {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 9px 14px;
  font: inherit;
  font-size: 12.5px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}

.loom-theme-import-btn.secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-dim, #c7cbd6);
  border-color: var(--panel-border, rgba(255, 255, 255, 0.1));
}

.loom-theme-import-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--ink, #e8eaf0);
}

.loom-theme-import-btn.primary {
  background: var(--accent-dim, rgba(111, 227, 200, 0.14));
  color: var(--accent, #6fe3c8);
  border-color: rgba(255, 255, 255, 0.08);
}

.loom-theme-import-btn.primary:hover {
  background: rgba(var(--accent-rgb, 111, 227, 200), 0.24);
}

@media (prefers-reduced-motion: reduce) {
  .loom-theme-fab,
  .loom-theme-fab svg,
  .loom-theme-panel,
  .loom-theme-option,
  .loom-theme-import-swatch,
  .loom-theme-import-btn {
    transition: none !important;
  }
}

/* ============================================================
   TOAST
   ============================================================ */
#toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--panel-solid);
  border: 1px solid var(--panel-border);
  color: var(--ink);
  font-size: 12.5px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 100;
}

#toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 880px) {

  #left-panel,
  #right-panel {
    width: 200px;
  }

  .brand-sub {
    display: none;
  }

  #btn-new-frame span {
    display: none;
  }
}

@media (max-width: 680px) {
  #left-panel {
    display: none;
  }

  #right-panel {
    width: 230px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}