/* Canvas, board-specific UI.
   Shared tokens, cards, buttons and the demo banner live in arvion.css; this
   file only covers the application chrome and the warm board surface. */

html,
body { height: 100%; }
body { overflow: hidden; }

.app {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ------------------------------------------------------------------ topbar */

.board-topbar {
  flex: none;
  gap: 12px;
  padding: 0 18px;
  background: linear-gradient(180deg, rgba(28, 19, 51, 0.94), rgba(16, 10, 28, 0.9));
  border-bottom: 1px solid var(--line);
}

.board-topbar .brand-word b { color: var(--gold); }
.board-topbar .brand-mark { box-shadow: 0 0 0 1px var(--gold-line), 0 8px 24px -12px rgba(178, 139, 255, 0.8); }

.top-divider {
  width: 1px;
  height: 24px;
  background: var(--line);
  flex: none;
}

.board-id {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.board-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.saved-badge { transition: opacity 0.2s var(--ease); }
.saved-badge.saving { opacity: 0.55; }

.presence-mini {
  display: flex;
  align-items: center;
  gap: 9px;
}
.presence-mini .stack .avatar + .avatar { margin-left: -7px; }
.presence-mini .avatar { width: 27px; height: 27px; font-size: 10px; box-shadow: 0 0 0 2px var(--bg); }
.presence-mini .online { color: var(--text-2); font-size: 12px; font-weight: 500; }

.avatar.pink { background: linear-gradient(135deg, #ffc0e2, #ff5fb2); color: #3c0a24; }
.avatar.lilac { background: linear-gradient(135deg, #dbcaff, #8e63ff); color: #1c0d3e; }

.btn.icon { width: 32px; height: 32px; padding: 0; }
.btn.icon svg { width: 16px; height: 16px; }
.btn.sm svg { width: 14px; height: 14px; }
.btn.sm { gap: 7px; }
.btn[disabled] { opacity: 0.38; cursor: default; }
.board-topbar .btn.primary { --btn-fg: #1a0b34; --btn-bd: #9a6cff; box-shadow: 0 10px 26px -14px rgba(178, 139, 255, 0.9); }

/* --------------------------------------------------------------- workspace */

.workspace {
  flex: 1;
  min-height: 0;
  display: flex;
  gap: 14px;
  padding: 14px 16px 16px;
}

.board-card {
  --b-bg: #faf6ee;
  --b-bg-2: #f5eee2;
  --b-ink: #2a2136;
  --b-muted: #8a7a92;
  --b-line: #e3d8c6;
  --b-accent: #7c4dff;
  position: relative;
  flex: 1;
  min-width: 0;
  border-radius: 18px;
  overflow: hidden;
  background: var(--b-bg);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 40px 90px -40px #000, 0 0 0 1px rgba(0, 0, 0, 0.25);
  isolation: isolate;
}

#board {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  outline: none;
}

/* ---------------------------------------------------------------- the tools */

.tool-dock {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 6;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 6px;
  border-radius: 14px;
  background: rgba(255, 253, 248, 0.9);
  border: 1px solid rgba(64, 42, 84, 0.13);
  box-shadow: 0 20px 44px -22px rgba(30, 12, 52, 0.55), 0 1px 0 #fff inset;
  backdrop-filter: blur(10px);
}

.tool {
  position: relative;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  color: #5f4d6d;
  cursor: pointer;
  transition: background 0.14s var(--ease), color 0.14s, transform 0.14s;
}
.tool svg { width: 19px; height: 19px; }
.tool:hover { background: rgba(124, 77, 255, 0.09); color: #2a2136; }
.tool:active { transform: scale(0.96); }
.tool.active {
  background: linear-gradient(180deg, #3a2460, #241238);
  color: #f5edff;
  border-color: #1b0e2d;
  box-shadow: 0 8px 18px -10px rgba(44, 18, 80, 0.9);
}
.tool:focus-visible { outline: 2px solid var(--b-accent); outline-offset: 2px; }

.tool[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(-4px);
  padding: 5px 9px;
  border-radius: 7px;
  background: #241238;
  color: #f6f0ff;
  font: 500 11.5px/1 var(--font-sans);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s, transform 0.12s;
  box-shadow: 0 10px 20px -10px #000;
}
.tool[data-tip]:hover::after { opacity: 1; transform: translateY(-50%) translateX(0); }

.tool-divider {
  height: 1px;
  margin: 4px 5px;
  background: rgba(64, 42, 84, 0.13);
}

/* ------------------------------------------------------------------ zoom ui */

.zoom-dock {
  position: absolute;
  left: 14px;
  bottom: 14px;
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border-radius: 11px;
  background: rgba(255, 253, 248, 0.92);
  border: 1px solid rgba(64, 42, 84, 0.13);
  box-shadow: 0 16px 34px -20px rgba(30, 12, 52, 0.6);
  backdrop-filter: blur(8px);
}

.zoom-btn {
  height: 27px;
  min-width: 27px;
  padding: 0 7px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: #5b4969;
  font: 600 13px/1 var(--font-sans);
  cursor: pointer;
}
.zoom-btn:hover { background: rgba(124, 77, 255, 0.1); color: #2a2136; }
.zoom-btn:focus-visible { outline: 2px solid var(--b-accent); outline-offset: 1px; }
.zoom-btn.zoom-value { min-width: 50px; font: 500 11.5px/1 var(--font-mono); color: #4c3b58; }
.zoom-btn.fit { font: 600 11px/1 var(--font-sans); text-transform: uppercase; letter-spacing: 0.05em; }
.zoom-sep { width: 1px; height: 17px; background: rgba(64, 42, 84, 0.14); margin: 0 2px; }

/* ------------------------------------------------------------------- hints */

.canvas-hint {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.8);
  border: 1px solid rgba(64, 42, 84, 0.1);
  color: #7a6984;
  font-size: 11.5px;
  white-space: nowrap;
  backdrop-filter: blur(8px);
}
.canvas-hint kbd {
  background: #fff;
  border: 1px solid rgba(64, 42, 84, 0.18);
  border-bottom-width: 2px;
  color: #4c3b58;
  font-size: 10px;
  padding: 0 5px;
  border-radius: 5px;
}
.canvas-hint .sep { color: rgba(90, 68, 110, 0.35); }

/* ---------------------------------------------------------------- minimap */

.minimap-wrap {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 6;
  width: 208px;
  padding: 9px 10px 10px;
  border-radius: 13px;
  background: linear-gradient(180deg, rgba(35, 23, 58, 0.94), rgba(24, 15, 41, 0.94));
  border: 1px solid rgba(240, 225, 255, 0.14);
  box-shadow: 0 20px 44px -22px rgba(20, 6, 40, 0.75);
  backdrop-filter: blur(10px);
}
.minimap-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 7px;
  color: #b9a8d4;
  font: 600 9.5px/1 var(--font-sans);
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.minimap-head .mono { letter-spacing: 0; color: #d9c9f2; font-size: 10px; }
#minimap {
  display: block;
  width: 188px;
  height: 118px;
  border-radius: 8px;
  background: #17102a;
  border: 1px solid rgba(240, 225, 255, 0.08);
  cursor: crosshair;
}

/* --------------------------------------------------------------- side rail */

.side-rail {
  width: 296px;
  flex: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
  padding-bottom: 38px;
}

.rail-card {
  padding: 12px 15px;
  border-radius: 14px;
  box-shadow: 0 18px 40px -30px #000;
  flex: none;
}

.rail-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 8px;
}
.rail-head > div { min-width: 0; }
.rail-head h3 {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.25;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  overflow-wrap: anywhere;
}
.rail-head .badge { margin-left: auto; flex: none; }
.rail-head .eyebrow { font-size: 9.5px; letter-spacing: 0.13em; margin-bottom: 3px; }

.rail-note {
  margin: 7px 0 9px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.5;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 7px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat-strip > div { padding: 0 10px; border-left: 1px solid var(--line); }
.stat-strip > div:first-child { padding-left: 0; border-left: 0; }
.stat-strip span {
  display: block;
  color: var(--muted);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.stat-strip b {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.rail-actions { display: flex; gap: 8px; margin-top: 8px; }
.rail-actions .btn { flex: 1; }
.rail-actions .btn.danger { --btn-fg: var(--red); }

/* selection inspector */
.prop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
  padding: 7px 0;
  border-top: 1px solid var(--line);
}
.prop-grid > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
}
.prop-grid span { color: var(--muted); font-size: 10px; letter-spacing: 0.08em; }
.prop-grid b { font: 500 11.5px/1 var(--font-mono); color: var(--text-2); font-variant-numeric: tabular-nums; }

.swatches { display: flex; align-items: center; gap: 7px; padding: 7px 0 2px; }
.swatch {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  border: 2px solid transparent;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  transition: transform 0.12s var(--ease);
}
.swatch:hover { transform: translateY(-1px); }
.swatch.active { border-color: #fbf7ff; outline: 1px solid var(--gold-line); }

.arrange-row { display: flex; gap: 6px; margin-top: 9px; }
.arrange {
  flex: 1;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
}
.arrange svg { width: 14px; height: 14px; }
.arrange:hover { background: rgba(255, 255, 255, 0.05); color: var(--text); }
.arrange:focus-visible { outline: 2px solid var(--gold-line); outline-offset: 1px; }

/* presence */
.person {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  border-top: 1px solid var(--line);
}
.person:first-of-type { border-top: 0; }
.person .avatar { width: 26px; height: 26px; font-size: 9.5px; flex: none; }
.person-meta { min-width: 0; flex: 1; }
.person-meta b { display: block; font-size: 12.5px; font-weight: 600; color: var(--text); line-height: 1.3; }
.person-meta span {
  display: block;
  font-size: 10.5px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.person .badge.tiny { font-size: 9px; padding: 1px 6px; letter-spacing: 0.02em; }
.presence-foot {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  padding-top: 5px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 10.5px;
}

/* activity */
.activity-card { flex: 1; min-height: 130px; overflow: hidden; }
.activity-list { display: flex; flex-direction: column; gap: 2px; }
.activity-item {
  display: flex;
  gap: 8px;
  padding: 2px 0;
  border-top: 1px solid var(--line);
}
.activity-item:first-child { border-top: 0; }
.activity-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-top: 5px;
  flex: none;
}
.activity-item p {
  margin: 0;
  font-size: 10.5px;
  line-height: 1.35;
  color: var(--text-2);
}
.activity-item p b { color: var(--text); font-weight: 600; }
.activity-item .when { font-size: 8.5px; color: var(--muted); }

/* shortcuts */
.key-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3px 10px;
}
.key-grid span {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.2;
}
.key-grid kbd {
  min-width: 18px;
  text-align: center;
  background: var(--surface-3);
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  color: var(--text-2);
  font-size: 9px;
  padding: 0 4px;
}

/* ------------------------------------------------------------- text editor */

.text-editor {
  position: absolute;
  z-index: 20;
  margin: 0;
  border: 1.5px solid var(--b-accent);
  border-radius: 4px;
  outline: none;
  resize: none;
  overflow: hidden;
  padding: 8px;
  font-family: var(--font-sans);
  font-weight: 500;
  line-height: 1.38;
  box-shadow: 0 0 0 4px rgba(124, 77, 255, 0.16), 0 18px 40px -20px rgba(30, 12, 52, 0.6);
  caret-color: #5a2bd6;
}

/* ----------------------------------------------------------- board scrollbar */

.side-rail { scrollbar-width: none; }

/* --------------------------------------------------------------- responsive */

@media (max-width: 1180px) {
  .side-rail { width: 260px; }
  .minimap-wrap { width: 186px; }
  #minimap { width: 166px; }
  .canvas-hint { display: none; }
}

@media (max-width: 960px) {
  .side-rail { display: none; }
  .workspace { padding: 10px; }
  .board-id { display: none; }
  .presence-mini { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}