/* canvas.css */

/* ============================================================
   PREVIEW
   ============================================================ */
.preview-wrap{position:relative;display:flex;justify-content:center;align-items:center;min-width:0;min-height:0}

.breathing-anchor{
  position:absolute;top:20%;bottom:20%;left:20%;right:20%;
  background:var(--neon);border-radius:50%;
  filter:blur(100px);opacity:.12;
  animation:breathe 5s ease-in-out infinite;
  z-index:0;pointer-events:none;
}

.glass-preview{
  position:relative;z-index:1;width:100%;height:100%;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-xl);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  overflow:hidden;
  touch-action:pan-y;
  user-select:none;-webkit-user-select:none;
  transition:border-color .25s,box-shadow .25s;
  animation:cardPulse 5s ease-in-out infinite;
}
.glass-preview.zoomed{touch-action:none}
.glass-preview.editing{
  border-color:var(--neon-border);
  box-shadow:0 20px 50px rgba(0,0,0,.5),0 0 0 2px var(--neon-glow),inset 0 0 50px rgba(0,0,0,.35);
  animation:none;
}
.glass-preview.drag-over{
  border-color:var(--neon);border-style:dashed;
  box-shadow:0 0 0 3px var(--neon-glow),inset 0 0 60px rgba(var(--neon-rgb),.1);
}
.glass-preview::after{content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;box-shadow:inset 0 0 50px rgba(0,0,0,.35);z-index:4}

/* CURSORS */
.glass-preview[data-tool="pen"],.glass-preview[data-tool="pencil"],.glass-preview[data-tool="rect"],
.glass-preview[data-tool="roundedRect"],.glass-preview[data-tool="circle"],.glass-preview[data-tool="ellipse"],
.glass-preview[data-tool="line"],.glass-preview[data-tool="star"],.glass-preview[data-tool="hexagon"],
.glass-preview[data-tool="pentagon"],.glass-preview[data-tool="triangle"],.glass-preview[data-tool="heart"],
.glass-preview[data-tool="arrow"],.glass-preview[data-tool="cloud"]{cursor:crosshair;touch-action:none}
.glass-preview[data-tool="eraser"]{cursor:not-allowed;touch-action:none}
.glass-preview[data-tool="eyedropper"]{cursor:copy;touch-action:none}

/* GRID + SVG */
.grid-overlay{
  position:absolute;
  left:50%;
  top:50%;
  pointer-events:none;
  z-index:1;
  display:none;
  transform-origin:0 0;
  overflow:hidden;
  border-radius:1px;
}
.svg-viewport{position:absolute;inset:0;z-index:2}
#mainSvgContainer{position:absolute;inset:0;pointer-events:none}
#mainSvgContainer svg{
  display:block;position:absolute;left:50%;top:50%;
  transform-origin:0 0;
  shape-rendering:geometricPrecision;text-rendering:geometricPrecision;
}
.glass-preview.editing #mainSvgContainer svg g{pointer-events:none}
.glass-preview.editing #mainSvgContainer svg path,
.glass-preview.editing #mainSvgContainer svg rect,
.glass-preview.editing #mainSvgContainer svg circle,
.glass-preview.editing #mainSvgContainer svg ellipse,
.glass-preview.editing #mainSvgContainer svg line,
.glass-preview.editing #mainSvgContainer svg polygon,
.glass-preview.editing #mainSvgContainer svg polyline,
.glass-preview.editing #mainSvgContainer svg text,
.glass-preview.editing #mainSvgContainer svg image{pointer-events:all;cursor:pointer}
.glass-preview.editing #mainSvgContainer svg [data-locked]{cursor:not-allowed}

/* HANDLES */
#handleLayer{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:10;display:none;touch-action:none}
#handleLayer circle{pointer-events:all;cursor:grab;transition:fill .1s;touch-action:none}
#handleLayer circle:hover{fill:#fff!important}
#handleLayer circle:active{cursor:grabbing}

/* EMPTY STATE */
.preview-empty{
  position:absolute;inset:28px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  color:var(--text-muted);font-size:13px;line-height:1.6;opacity:.7;
  padding:0 20px;z-index:1;pointer-events:none;
}
.preview-empty b{color:var(--neon);font-weight:700}
.preview-empty.error{color:#f87171;opacity:.95}

/* ============================================================
   SELECTION TOOLBAR — верхний правый угол холста
   Появляется всегда, когда есть SVG.
   ============================================================ */
@keyframes fadeIn{
  from{opacity:0}
  to{opacity:1}
}

.selection-toolbar{
  position:absolute;
  top:8px;
  right:8px;
  z-index:26;
  display:flex;
  align-items:center;
  gap:4px;
  padding:4px 6px;
  background:rgba(13,15,23,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:100px;
  box-shadow:0 4px 16px rgba(0,0,0,.5);
  animation:fadeIn .15s ease both;
}
.selection-toolbar[hidden]{display:none !important}
.selection-toolbar button{
  width:30px;height:30px;
  border-radius:50%;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  color:var(--text-main);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:background .15s, color .15s, transform .1s, opacity .15s;
  padding:0;
  -webkit-tap-highlight-color:transparent;
}
.selection-toolbar button:hover{
  background:rgba(var(--neon-rgb),.2);
  border-color:var(--neon-border);
}
.selection-toolbar button:active{transform:scale(.92)}
.selection-toolbar button:disabled{
  opacity:.35;
  cursor:not-allowed;
}
.selection-toolbar button:disabled:hover{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.12);
}
.selection-toolbar button.danger{color:#fca5a5}
.selection-toolbar button.danger:hover{
  background:rgba(225,29,72,.25);
  color:#fff;
  border-color:rgba(225,29,72,.4);
}
.selection-toolbar button svg{width:14px;height:14px;pointer-events:none}

/* Тулбар выделения показывается только в режиме редактирования */
.glass-preview:not(.editing) .selection-toolbar { display: none !important; }

/* Разделитель между кнопками тулбара выделения */
.sel-tb-sep{
  width:1px;
  height:18px;
  background:rgba(255,255,255,.15);
  margin:0 2px;
  flex-shrink:0;
}
.sel-tb-sep[hidden]{display:none !important}

/* ============================================================
   CANVAS BOTTOM LEFT — капсула [⌨] [Индикатор]
   ============================================================ */
.canvas-bottom-left{
  position:absolute;
  bottom:12px;
  left:12px;
  z-index:25;
  display:flex;
  align-items:stretch;
  max-width:calc(100% - 80px);
  pointer-events:none;
  filter:drop-shadow(0 4px 12px rgba(0,0,0,.4));
}
.canvas-bottom-left > *{ pointer-events:auto; }

.canvas-bottom-left .hint-toggle-fab{
  width:32px;
  height:30px;
  flex-shrink:0;
  padding:0;
  border-radius:100px 0 0 100px;
  background:rgba(13,15,23,.75);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.1);
  border-right:none;
  color:var(--neon);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:background .15s, color .15s, border-color .15s;
  -webkit-tap-highlight-color:transparent;
  position:relative;
  z-index:1;
}
.canvas-bottom-left .hint-toggle-fab:hover{
  background:rgba(var(--neon-rgb),.25);
  color:#fff;
}
.canvas-bottom-left .hint-toggle-fab.active{
  background:var(--neon);
  color:#fff;
  border-color:var(--neon);
}
.canvas-bottom-left .hint-toggle-fab svg{
  pointer-events:none;
  width:15px;
  height:15px;
}

.canvas-bottom-left.has-selection .hint-toggle-fab{
  border-color:var(--neon-border);
}
.canvas-bottom-left.has-selection .hint-toggle-fab.active{
  border-color:var(--neon);
}

.canvas-bottom-left .sel-indicator{
  height:30px;
  padding:0 14px 0 10px;
  display:flex;
  align-items:center;
  border-radius:0 100px 100px 0;
  background:rgba(13,15,23,.75);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.1);
  border-left:none;
  color:var(--text-muted);
  font-size:10.5px;
  font-weight:600;
  font-family:var(--font-mono);
  letter-spacing:.01em;
  max-width:360px;
  transition:color .15s, border-color .15s, background .15s;
  position:relative;
  z-index:0;
  min-width:0;
}
.canvas-bottom-left .sel-indicator.active{
  color:var(--neon);
  border-color:var(--neon-border);
  background:rgba(13,15,23,.88);
}

.canvas-bottom-left .sel-indicator .sel-chain{
  display:block;
  flex:1;
  min-width:0;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  line-height:1;
}

.canvas-bottom-left .sel-indicator .chain-tag{ color:var(--text-muted); }
.canvas-bottom-left .sel-indicator .chain-tag.chain-last{ color:var(--text-main); font-weight:700; }
.canvas-bottom-left .sel-indicator .chain-id{ color:#22d3ee; font-weight:700; margin-left:4px; }
.canvas-bottom-left .sel-indicator .chain-sep{ color:rgba(225,29,72,.5); margin:0 5px; font-weight:400; }
.canvas-bottom-left .sel-indicator .chain-lock{ margin-left:4px; font-size:10px; }
.canvas-bottom-left .sel-indicator.active .chain-tag{ color:#94a3b8; }
.canvas-bottom-left .sel-indicator.active .chain-tag.chain-last{ color:#fff; }

/* ============================================================
   CANVAS BOTTOM RIGHT — капсула управления видом
   [↶] gap [↷] | [−] [100%] [+] | [⛶sel] [⛶]
   ============================================================ */
.canvas-bottom-right{
  position:absolute;
  bottom:12px;
  right:12px;
  z-index:25;
  display:flex;
  align-items:center;
  background:rgba(13,15,23,.75);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:100px;
  padding:0 6px;
  gap:2px;
  height:30px;
  box-shadow:0 4px 12px rgba(0,0,0,.4);
}
.canvas-bottom-right .capsule-btn{
  background:transparent;
  border:none;
  color:var(--text-muted);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  padding:0 6px;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  height:100%;
  transition:color .15s, opacity .15s;
  -webkit-tap-highlight-color:transparent;
}
.canvas-bottom-right .capsule-btn:hover{ color:#fff; }
.canvas-bottom-right .capsule-btn:disabled{ opacity:.3; cursor:not-allowed; }
.canvas-bottom-right .capsule-btn svg{
  width:14px;height:14px;
  pointer-events:none;
  display:block;
}
.canvas-bottom-right .capsule-sep{
  width:1px; height:14px;
  background:rgba(255,255,255,.15);
  margin:0 2px;
  flex-shrink:0;
}
.canvas-bottom-right .capsule-gap{
  width:6px;
  height:100%;
  flex-shrink:0;
}
.canvas-bottom-right .capsule-zoom-btn{
  min-width:44px;
  text-align:center;
  color:var(--text-main);
  letter-spacing:.02em;
}

/* TOAST */
.toast{
  position:absolute;top:12px;left:50%;
  transform:translateX(-50%) translateY(-8px);
  z-index:20;
  background:rgba(13,15,23,.95);
  border:1px solid var(--neon-border);
  color:#fff;padding:8px 16px;
  border-radius:var(--radius-pill);
  font-size:11.5px;font-weight:600;
  opacity:0;transition:all .25s;pointer-events:none;
  box-shadow:0 8px 28px rgba(0,0,0,.5),0 0 20px rgba(var(--neon-rgb),.25);
  white-space:nowrap;max-width:90%;overflow:hidden;text-overflow:ellipsis;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* HINT PANEL (под холстом) */
.hint-content-wrap{flex-shrink:0;padding:6px 8px;border-top:1px solid rgba(255,255,255,.05);animation:slideDown .2s ease both}
.hint-content{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 14px;font-size:10.5px;color:var(--text-muted);line-height:1.5}
.hint-content>span{white-space:nowrap}
.hint-content b{display:inline-block;color:var(--neon);font-weight:700;font-family:var(--font-mono);font-size:10px;padding:1px 5px;background:rgba(var(--neon-rgb),.1);border:1px solid rgba(var(--neon-rgb),.18);border-radius:3px;margin-right:3px}

/* INLINE TEXT EDIT (fallback) */
.inline-text-input{
  position:absolute;z-index:100;
  background:rgba(15,17,26,.98);
  border:1px solid var(--neon);border-radius:var(--radius-sm);
  color:#fff;font-family:inherit;padding:6px 10px;outline:none;
  box-shadow:0 0 20px var(--neon-glow);
}