/* ==========================================================================
   Timzo Studio — UI
   Dark, calm, touch-first. Single stylesheet, no build step.
   ========================================================================== */

/* ---------- tokens ---------- */
:root{
  --bg:#0a0b10;
  --bg-2:#101219;
  --bg-3:#161925;
  --bg-4:#1d2130;
  --line:rgba(255,255,255,.075);
  --line-2:rgba(255,255,255,.14);
  --text:#eef1f8;
  --text-2:#a9b1c6;
  --muted:#7b849b;
  --muted-2:#5a6178;
  --accent:#7c6bf5;
  --accent-2:#a78bfa;
  --accent-3:#5a44e0;
  --accent-soft:rgba(124,107,245,.14);
  --accent-soft-2:rgba(124,107,245,.26);
  --cyan:#4fd1c5;
  --pink:#ff3ea5;
  --danger:#f4667d;
  --success:#3dd6a0;
  --warn:#f5b544;
  --grad:linear-gradient(135deg,#9b8dff 0%,#7c6bf5 45%,#5a44e0 100%);
  --grad-soft:linear-gradient(160deg,rgba(155,141,255,.22),rgba(90,68,224,.06));
  --r-xs:6px; --r-sm:9px; --r:12px; --r-lg:16px; --r-xl:22px;
  --rail:76px; --panel:300px; --hdr:58px; --ctx:48px; --status:28px;
  --shadow:0 10px 34px rgba(0,0,0,.42);
  --shadow-lg:0 26px 70px rgba(0,0,0,.62);
  --font:'Sahel','Vazir','Vazirmatn',system-ui,-apple-system,sans-serif;
  --safe-b:env(safe-area-inset-bottom,0px);
  --safe-t:env(safe-area-inset-top,0px);
  --safe-l:env(safe-area-inset-left,0px);
  --safe-r:env(safe-area-inset-right,0px);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%;overflow:hidden;overscroll-behavior:none}
body{
  font-family:var(--font);font-size:13px;line-height:1.55;
  background:var(--bg);color:var(--text);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body.is-busy{cursor:progress}
svg{display:block;flex:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
button:disabled{opacity:.32;cursor:not-allowed}
input,select,textarea{font:inherit;color:inherit;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--r-sm);padding:8px 10px;width:100%;
  outline:none;transition:border-color .16s,box-shadow .16s,background .16s;
  -webkit-appearance:none;appearance:none}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:var(--bg-2)}
input[type=number]{font-variant-numeric:tabular-nums}
textarea{resize:vertical;min-height:64px;line-height:1.7}
select{cursor:pointer;padding-left:28px;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237b849b' stroke-width='2.2' stroke-linecap='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat:no-repeat;background-position:left 10px center}
input[type=color]{padding:3px;height:38px;cursor:pointer;background:var(--bg);border-radius:var(--r-sm)}
input[type=color]::-webkit-color-swatch-wrapper{padding:0}
input[type=color]::-webkit-color-swatch{border:0;border-radius:6px}
input[type=color]::-moz-color-swatch{border:0;border-radius:6px}
input[type=range]{padding:0;border:0;background:none;height:26px;accent-color:var(--accent);cursor:pointer}
input[type=range]:focus{box-shadow:none}
input[type=checkbox]{width:auto;accent-color:var(--accent);height:16px;width:16px}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.13);border-radius:8px;border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.22);background-clip:content-box}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:1px}
.hidden{display:none!important}
/* critical: author `display` rules must never beat the [hidden] attribute */
[hidden]{display:none!important}
.grow{flex:1}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ==========================================================================
   APP SHELL
   ========================================================================== */
.app{
  height:100vh;height:100dvh;display:grid;
  grid-template-rows:calc(var(--hdr) + var(--safe-t)) 1fr;
  background:
    radial-gradient(1200px 600px at 85% -12%,rgba(124,107,245,.16),transparent 62%),
    radial-gradient(900px 500px at 8% 110%,rgba(79,209,197,.07),transparent 60%),
    var(--bg);
}

/* ---------- topbar ---------- */
.topbar{
  display:flex;align-items:center;gap:10px;
  padding:var(--safe-t) calc(12px + var(--safe-l)) 0 calc(12px + var(--safe-r));
  padding-top:var(--safe-t);height:calc(var(--hdr) + var(--safe-t));
  background:rgba(16,18,25,.86);
  border-bottom:1px solid var(--line);
  position:relative;z-index:30;contain:layout paint;
}
@media (pointer:fine){
  .topbar{backdrop-filter:blur(14px) saturate(140%);background:rgba(14,16,22,.72)}
}
.back-btn{color:var(--muted)}
.back-btn:hover{color:var(--text);background:var(--bg-3)}

.brand{display:flex;align-items:center;gap:9px;flex:none}
.logo{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad);box-shadow:0 6px 18px rgba(124,107,245,.34);color:#fff}
.logo svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-title{font-weight:800;font-size:13px}
.brand-sub{font-size:9.5px;color:var(--muted);letter-spacing:.4px}

.doc{display:flex;align-items:center;gap:6px;min-width:0;max-width:230px}
.doc-name{
  background:transparent;border:1px solid transparent;font-weight:600;font-size:12.5px;
  padding:6px 9px;border-radius:var(--r-sm);text-overflow:ellipsis;
}
.doc-name:hover{background:var(--bg-3);border-color:var(--line)}
.doc-name:focus{background:var(--bg-2);border-color:var(--accent)}
.doc-state{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;
  color:var(--success);flex:none;opacity:0;transition:opacity .2s}
.doc-state svg{width:13px;height:13px}
.doc-state.show{opacity:1}
.doc-state.saving{color:var(--warn);opacity:1}

.top-actions{display:flex;align-items:center;gap:6px;flex:none}

/* ---------- buttons ---------- */
.btn{
  min-height:36px;padding:7px 13px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--bg-3);
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  font-size:12.5px;font-weight:600;white-space:nowrap;
  transition:background .15s,border-color .15s,transform .1s,color .15s;
}
.btn svg{width:16px;height:16px}
.btn:hover{background:var(--bg-4);border-color:var(--line-2)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad);border-color:transparent;color:#fff;
  box-shadow:0 6px 18px rgba(124,107,245,.28)}
.btn-primary:hover{filter:brightness(1.08);background:var(--grad)}
.btn-ghost{background:transparent}
.btn-ghost:hover{background:var(--bg-3)}
.btn-danger{color:var(--danger)}
.btn-danger:hover{background:rgba(244,102,125,.12);border-color:rgba(244,102,125,.34)}
.btn-full{width:100%}
.btn-row{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.btn-row>.btn{flex:1;min-width:0}
.stack{display:flex;flex-direction:column;gap:6px}
.btn-split{display:grid;grid-template-columns:1fr 1fr;gap:6px;align-self:end}
.btn-split>.btn{padding:7px 8px;font-size:11.5px}

.icon-btn{
  width:36px;height:36px;border-radius:var(--r-sm);display:grid;place-items:center;
  color:var(--text-2);transition:background .15s,color .15s;flex:none;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{background:var(--bg-3);color:var(--text)}
.icon-btn:active{background:var(--bg-4)}
.icon-btn.active{background:var(--accent-soft);color:var(--accent-2)}

/* ==========================================================================
   WORKSPACE
   ========================================================================== */
.workspace{
  display:grid;min-height:0;
  grid-template-columns:var(--rail) minmax(0,1fr) var(--panel);
  grid-template-areas:"tools stage panel";
}

/* ---------- tool rail ---------- */
.toolbar{
  grid-area:tools;display:flex;flex-direction:column;align-items:stretch;gap:2px;
  padding:8px 6px;background:var(--bg-2);border-left:1px solid var(--line);
  overflow-y:auto;overflow-x:hidden;contain:layout paint;
}
.tool-group{display:flex;flex-direction:column;gap:2px}
.tool-spacer{flex:1;min-height:8px}
.tool-divider{height:1px;background:var(--line);margin:6px 8px}
.tool{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  min-height:58px;padding:7px 2px;border-radius:var(--r);
  color:var(--muted);font-size:10px;font-weight:600;
  transition:background .15s,color .15s,transform .1s;position:relative;
}
.tool svg{width:21px;height:21px}
.tool:hover{background:var(--bg-3);color:var(--text)}
.tool:active{transform:scale(.96)}
.tool.active{background:var(--grad-soft);color:var(--accent-2);box-shadow:inset 0 0 0 1px var(--accent-soft-2)}
.tool.active::before{
  content:"";position:absolute;right:-6px;top:50%;translate:0 -50%;
  width:3px;height:22px;border-radius:3px;background:var(--accent)
}

/* ---------- stage area ---------- */
.stage-area{
  grid-area:stage;display:grid;min-width:0;min-height:0;
  grid-template-rows:var(--ctx) 1fr var(--status);
  background:var(--bg);position:relative;
}

.contextbar{
  display:flex;align-items:center;gap:8px;padding:0 10px;
  background:rgba(16,18,25,.9);border-bottom:1px solid var(--line);
  overflow-x:auto;overflow-y:hidden;scrollbar-width:none;min-width:0;
}
.contextbar::-webkit-scrollbar{display:none}
.ctx-tool{
  font-weight:700;font-size:12px;color:var(--accent-2);flex:none;
  padding:3px 10px;border-radius:99px;background:var(--accent-soft);
  box-shadow:inset 0 0 0 1px var(--accent-soft-2);
}
.ctx-group{display:flex;align-items:center;gap:4px;flex:none}
.ctx-group .icon-btn{width:34px;height:34px}
.ctx-group .icon-btn svg{width:17px;height:17px}
.ctx-mini-label{font-size:10.5px;color:var(--muted);font-weight:600;white-space:nowrap}
.ctx-mini-val{font-size:10.5px;color:var(--accent-2);font-weight:700;min-width:22px;text-align:center;font-variant-numeric:tabular-nums}
.ctx-mini-sep{width:1px;height:20px;background:var(--line-2);margin:0 4px}
.ctx-mini{display:grid;place-items:center;flex:none}
.ctx-mini input[type=color]{width:34px;height:34px;padding:3px}
.contextbar input[type=range]{width:96px}
.ctx-select{width:auto;min-width:82px;padding:5px 26px 5px 10px;font-size:11.5px;height:32px}
.zoom-group{gap:2px}
.zoom-value{
  min-width:52px;height:32px;border-radius:var(--r-sm);font-size:11.5px;font-weight:700;
  color:var(--text-2);font-variant-numeric:tabular-nums;transition:background .15s,color .15s
}
.zoom-value:hover{background:var(--bg-3);color:var(--text)}

.stage{
  position:relative;overflow:hidden;min-height:0;min-width:0;
  display:grid;place-items:center;
  background-color:#0c0d13;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:26px 26px;
  touch-action:none;
}
.canvas-shell{
  position:relative;border-radius:3px;
  box-shadow:0 18px 60px rgba(0,0,0,.55),0 0 0 1px rgba(255,255,255,.07);
  background:
    linear-gradient(45deg,#20222c 25%,transparent 25%,transparent 75%,#20222c 75%),
    linear-gradient(45deg,#20222c 25%,#191b23 25%,#191b23 75%,#20222c 75%);
  background-size:18px 18px;background-position:0 0,9px 9px;
}
.canvas-shell canvas{display:block;position:relative;z-index:1}
.canvas-shell .guides{position:absolute;inset:0;pointer-events:none;z-index:3;overflow:hidden}
.guide{position:absolute;background:var(--pink);box-shadow:0 0 7px rgba(255,62,165,.85)}
.guide.v{width:1px;top:0;bottom:0}
.guide.h{height:1px;left:0;right:0}
.brush-cursor{
  position:absolute;z-index:4;pointer-events:none;border-radius:50%;
  border:1.5px solid rgba(255,255,255,.92);
  box-shadow:0 0 0 1.5px rgba(0,0,0,.45),inset 0 0 0 1.5px rgba(0,0,0,.25);
  translate:-50% -50%;
}
.brush-cursor.healing{border-color:var(--pink);box-shadow:0 0 0 1.5px rgba(0,0,0,.5)}

/* empty state */
.empty-state{
  position:absolute;inset:0;z-index:6;display:grid;place-items:center;padding:18px;
  background:radial-gradient(700px 400px at 50% 40%,rgba(124,107,245,.12),transparent 70%);
  animation:fade .25s ease;
}
.empty-card{
  width:min(560px,100%);max-height:100%;overflow-y:auto;
  background:rgba(22,25,37,.86);border:1px solid var(--line-2);border-radius:var(--r-xl);
  padding:24px 22px;box-shadow:var(--shadow-lg);text-align:center;
}
@media (pointer:fine){.empty-card{backdrop-filter:blur(16px)}}
.empty-icon{
  width:56px;height:56px;margin:0 auto 14px;border-radius:18px;
  display:grid;place-items:center;background:var(--grad-soft);
  color:var(--accent-2);box-shadow:inset 0 0 0 1px var(--accent-soft-2);
}
.empty-icon svg{width:28px;height:28px}
.empty-card h2{font-size:18px;font-weight:800;margin-bottom:6px}
.empty-card p{font-size:12px;color:var(--text-2);line-height:2;margin-bottom:18px}
.empty-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:16px}
.empty-actions .btn{flex:0 1 auto}

.preset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:8px}
.preset{
  border:1px solid var(--line);background:var(--bg-3);border-radius:var(--r);
  padding:9px 8px;text-align:center;transition:.15s;display:grid;gap:3px;
}
.preset:hover{background:var(--bg-4);border-color:var(--line-2);transform:translateY(-1px)}
.preset.active{border-color:var(--accent);background:var(--accent-soft)}
.preset b{font-size:11.5px;font-weight:700}
.preset span{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}
.preset-grid.sm{grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:6px}
.preset-grid.sm .preset{padding:7px 6px}
.preset-grid.sm .preset b{font-size:10.5px}
.preset-grid.sm .preset span{font-size:9px}

/* statusbar */
.statusbar{
  display:flex;align-items:center;gap:9px;padding:0 12px;
  background:rgba(16,18,25,.9);border-top:1px solid var(--line);
  font-size:10.5px;color:var(--muted);overflow:hidden;white-space:nowrap;
}
.sdot{width:7px;height:7px;border-radius:50%;background:var(--success);flex:none;
  box-shadow:0 0 8px currentColor}
.sdot.busy{background:var(--warn);animation:pulse 1s infinite}
.sdot.error{background:var(--danger)}
.ssep{width:1px;height:12px;background:var(--line-2);flex:none}
.sbadge{padding:2px 8px;border-radius:99px;background:var(--accent-soft);color:var(--accent-2);font-weight:600}

/* ==========================================================================
   PANEL
   ========================================================================== */
.panel{
  grid-area:panel;display:flex;flex-direction:column;min-height:0;
  background:var(--bg-2);border-right:1px solid var(--line);contain:layout paint;
}
.panel-head{
  display:flex;align-items:center;gap:6px;padding:6px 8px;flex:none;
  border-bottom:1px solid var(--line);position:relative;
}
.panel-tabs{display:flex;gap:2px;flex:1;min-width:0}
.tab{
  padding:9px 12px;font-size:12px;font-weight:600;color:var(--muted);
  border-radius:var(--r-sm);transition:.15s;white-space:nowrap;
}
.tab:hover{color:var(--text);background:var(--bg-3)}
.tab.active{color:#fff;background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent-soft-2)}
.sheet-close,.sheet-grip{display:none}
.panel-body{flex:1;overflow-y:auto;overflow-x:hidden;padding:12px;min-height:0;scroll-behavior:smooth}
.tabpane{display:none;animation:fade .18s ease}
.tabpane.active{display:block}

.card{
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:12px;margin-bottom:10px;
}
.card:last-child{margin-bottom:2px}
.card>h3{
  font-size:11px;font-weight:700;color:var(--muted);letter-spacing:.5px;
  margin-bottom:10px;display:flex;justify-content:space-between;align-items:center;gap:8px;
}
.card>h3 span{font-size:10px;color:var(--muted-2);font-weight:600;font-variant-numeric:tabular-nums}
.field{display:block;margin-bottom:8px}
.field:last-child{margin-bottom:0}
.field>span,.field-head{
  display:block;font-size:10.5px;color:var(--muted);font-weight:600;margin-bottom:4px;
}
.field-head{display:flex!important;justify-content:space-between;align-items:center}
.field-head b{color:var(--accent-2);font-weight:700;font-variant-numeric:tabular-nums}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.row2>.btn{align-self:end;min-height:36px}
.field-color{display:grid;grid-template-columns:1fr;gap:4px}
.btn-stack{display:flex;flex-direction:column;gap:6px;justify-content:flex-end}
.hint{font-size:10.5px;color:var(--muted-2);line-height:1.9;padding:2px 0 6px}
.check{display:flex;align-items:center;gap:8px;font-size:12px;cursor:pointer;padding:6px 0}

/* segmented buttons */
.btn-row,.font-grid,.fx-grid,.align-grid,.preset-grid,.layer-list{gap:6px}
.align-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:5px;margin:6px 0 4px}
.seg-btn{
  min-height:36px;border:1px solid var(--line);background:var(--bg);
  border-radius:var(--r-sm);display:grid;place-items:center;
  color:var(--text-2);font-size:10.5px;font-weight:700;transition:.15s;padding:0 4px;
}
.seg-btn svg{width:17px;height:17px}
.seg-btn:hover{background:var(--bg-4);color:var(--text)}
.seg-btn.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-2)}
#textAlignRow{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:6px}
#textAlignRow .seg-btn{width:40px}
.seg-sep{width:1px;height:22px;background:var(--line-2)}

/* font picker */
.font-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:4px}
.font-chip{
  min-height:46px;padding:6px 8px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--bg);font-size:15px;text-align:center;line-height:1.25;transition:.15s;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.font-chip:hover{background:var(--bg-4);border-color:var(--line-2)}
.font-chip.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-2)}
.font-chip[data-font="Lalezar"]{font-family:'Lalezar',var(--font)}
.font-chip[data-font="Nastaliq"]{font-family:'Nastaliq','Noto Nastaliq Urdu',serif;font-size:14px;line-height:1.9}
.font-chip[data-font="Dastnevis"]{font-family:'Dastnevis',var(--font)}
.font-chip[data-font="Mikhak"]{font-family:'Mikhak',var(--font)}
.font-chip[data-font="Lateef"]{font-family:'Lateef',serif;font-size:16px}
.font-chip[data-font="Sahel"]{font-family:'Sahel',var(--font)}
.font-chip[data-font="Reem Kufi"]{font-family:'Reem Kufi',sans-serif}
.font-chip[data-font="Vazir"]{font-family:'Vazir','Vazirmatn',var(--font)}

/* filter presets */
.fx-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:4px}
.fx-btn{
  min-height:44px;border:1px solid var(--line);background:var(--bg);border-radius:var(--r-sm);
  display:grid;place-items:center;font-size:10.5px;font-weight:600;color:var(--text-2);transition:.15s;
}
.fx-btn:hover{background:var(--bg-4);color:var(--text)}
.fx-btn.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-2)}

/* layers */
.layer-list{display:flex;flex-direction:column;gap:5px}
.layer{
  display:flex;align-items:center;gap:7px;padding:6px;border-radius:var(--r);
  border:1px solid transparent;background:var(--bg);transition:border-color .15s,background .15s;
  cursor:pointer;position:relative;user-select:none;
}
.layer:hover{border-color:var(--line-2)}
.layer.active{border-color:var(--accent);background:var(--accent-soft)}
.layer.dragging{box-shadow:var(--shadow);border-color:var(--accent);z-index:5;opacity:.95;transition:none}
.layer.drop-before::before{
  content:"";position:absolute;inset-inline:4px;top:-4px;height:2px;border-radius:2px;background:var(--accent)
}
.layer.drop-after::after{
  content:"";position:absolute;inset-inline:4px;bottom:-4px;height:2px;border-radius:2px;background:var(--accent)
}
.layer-eye{width:24px;height:24px;border-radius:6px;display:grid;place-items:center;color:var(--muted);flex:none}
.layer-eye:hover{background:var(--bg-4);color:var(--text)}
.layer-eye svg{width:15px;height:15px}
.layer-thumb{
  width:32px;height:32px;border-radius:7px;background:#0e1016;flex:none;
  display:grid;place-items:center;color:var(--muted-2);overflow:hidden;
  box-shadow:inset 0 0 0 1px var(--line);
  background-image:linear-gradient(45deg,rgba(255,255,255,.05) 25%,transparent 25%,transparent 75%,rgba(255,255,255,.05) 75%),
    linear-gradient(45deg,rgba(255,255,255,.05) 25%,transparent 25%,transparent 75%,rgba(255,255,255,.05) 75%);
  background-size:10px 10px;background-position:0 0,5px 5px;
}
.layer-thumb img{width:100%;height:100%;object-fit:contain}
.layer-thumb svg{width:15px;height:15px}
.layer[data-hidden="1"] .layer-thumb img{opacity:.28}
.layer-info{flex:1;min-width:0;display:grid;gap:1px}
.layer-name{font-size:11.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.layer-meta{font-size:9.5px;color:var(--muted-2);display:flex;gap:6px;align-items:center}
.layer-meta .chip{padding:0 5px;border-radius:4px;background:var(--accent-soft);color:var(--accent-2);font-weight:600}
.layer-grip{
  width:24px;height:30px;display:grid;place-items:center;color:var(--muted-2);flex:none;
  cursor:grab;touch-action:none;border-radius:6px;
}
.layer-grip:hover{color:var(--text);background:var(--bg-4)}
.layer-grip:active{cursor:grabbing}
.layer-grip svg{width:15px;height:15px;pointer-events:none}

/* ==========================================================================
   MODALS / OVERLAY / TOASTS
   ========================================================================== */
.modal{
  position:fixed;inset:0;z-index:70;display:none;align-items:center;justify-content:center;
  padding:16px;background:rgba(4,5,9,.66);
}
.modal.open{display:flex}
@media (pointer:fine){.modal{backdrop-filter:blur(6px)}}
.modal-card{
  width:min(460px,100%);max-height:min(88vh,720px);display:flex;flex-direction:column;
  background:var(--bg-2);border:1px solid var(--line-2);border-radius:var(--r-xl);
  box-shadow:var(--shadow-lg);animation:pop .22s cubic-bezier(.2,.9,.3,1.1);
  padding:0 16px;
}
.modal-card.sm{width:min(380px,100%)}
.modal-head{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:14px 2px 12px;border-bottom:1px solid var(--line);flex:none;
}
.modal-head h3{font-size:15px;font-weight:800}
.modal-body{padding:14px 2px;overflow-y:auto;flex:1;min-height:0}
.modal-body p{font-size:12px;color:var(--text-2);line-height:2}
.modal-actions{
  display:flex;gap:8px;justify-content:flex-start;padding:12px 2px 16px;
  border-top:1px solid var(--line);flex:none;
}
.modal-actions .btn{flex:1}
.kbd-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:6px;margin:6px 0 14px}
.kbd-list li{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-2)}
kbd{
  font-family:var(--font);font-size:10px;font-weight:700;padding:2px 6px;border-radius:5px;
  background:var(--bg-4);border:1px solid var(--line-2);color:var(--text);
}

/* busy chip — non blocking: it never covers the canvas and never eats taps */
.overlay{
  position:fixed;z-index:80;pointer-events:none;
  inset-inline:0;bottom:calc(var(--status) + 14px + var(--safe-b));
  display:flex;justify-content:center;
}
.overlay-card{
  display:flex;align-items:center;gap:10px;max-width:min(330px,88vw);
  padding:9px 16px;background:rgba(22,25,37,.96);border:1px solid var(--line-2);
  border-radius:99px;box-shadow:var(--shadow);font-size:11.5px;font-weight:600;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  animation:chipIn .22s ease;
}
#overlayText{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.spinner{
  width:15px;height:15px;border-radius:50%;flex:none;
  border:2px solid rgba(255,255,255,.14);border-top-color:var(--accent-2);
  animation:spin .8s linear infinite;
}
.bar{width:84px;height:4px;border-radius:99px;background:var(--bg-4);overflow:hidden;flex:none}
.bar-fill{height:100%;width:0;background:var(--grad);transition:width .18s ease}
body.is-busy .toasts{bottom:calc(var(--status) + 62px + var(--safe-b))}
@keyframes chipIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* size dock — brush / heal size lives here, always inside the viewport */
.size-dock{
  position:absolute;z-index:12;left:50%;translate:-50% 0;
  bottom:calc(var(--status) + 12px + var(--safe-b));
  display:flex;align-items:center;gap:10px;padding:7px 13px;
  max-width:calc(100% - 16px);
  background:rgba(22,25,37,.94);border:1px solid var(--line-2);border-radius:99px;
  box-shadow:var(--shadow);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  animation:chipIn .2s ease;
}
.size-dock .ctx-group{flex:1;min-width:0}
.size-dock input[type=range]{flex:1;min-width:64px;height:28px}
.size-dock .ctx-mini-val{min-width:26px}
body.has-dock .toasts{bottom:calc(var(--status) + 62px + var(--safe-b))}

/* momentary ring that shows how big the brush really is */
.size-preview{
  position:absolute;left:50%;top:50%;translate:-50% -50%;z-index:13;pointer-events:none;
  border-radius:50%;border:2px solid var(--accent-2);
  background:radial-gradient(circle,var(--accent-soft-2),rgba(124,107,245,.05));
  box-shadow:0 0 0 1.5px rgba(0,0,0,.55);
  animation:sizePop 1s ease forwards;
}
.size-preview.healing{border-color:var(--pink);background:radial-gradient(circle,rgba(255,62,165,.28),rgba(255,62,165,.05))}
@keyframes sizePop{0%{transform:scale(.72);opacity:0}22%{transform:scale(1);opacity:1}72%{opacity:1}100%{transform:scale(1.06);opacity:0}}

.toasts{
  position:fixed;z-index:95;bottom:calc(16px + var(--safe-b));inset-inline:16px;
  display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none;
}
.toast{
  max-width:min(400px,100%);padding:10px 15px;border-radius:var(--r);
  background:rgba(30,34,48,.96);border:1px solid var(--line-2);
  font-size:12px;box-shadow:var(--shadow);animation:toastIn .22s;
  display:flex;align-items:center;gap:8px;
}
.toast::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent-2);flex:none}
.toast.success::before{background:var(--success)}
.toast.error::before{background:var(--danger)}
.toast.info::before{background:var(--cyan)}
.toast.out{animation:toastOut .2s forwards}

.drop-hint{
  position:fixed;inset:0;z-index:88;display:grid;place-items:center;gap:10px;
  background:rgba(10,11,16,.82);border:2px dashed var(--accent);
  color:var(--accent-2);font-weight:700;font-size:14px;
}
.drop-hint svg{width:44px;height:44px}
.noscript{padding:22px;text-align:center}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
@keyframes toastIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes toastOut{to{opacity:0;transform:translateY(10px)}}

/* ==========================================================================
   RESPONSIVE — tablet
   ========================================================================== */
@media(max-width:1100px){
  :root{--panel:272px;--rail:70px}
}
@media(max-width:980px){
  :root{--rail:64px;--panel:0px;--hdr:54px}
  .workspace{grid-template-columns:var(--rail) minmax(0,1fr)}
  .workspace{grid-template-areas:"tools stage"}
  .tool{min-height:52px;font-size:9.5px}
  .tool svg{width:19px;height:19px}
  .tool.active::before{display:none}
  .brand-text{display:none}
  /* panel becomes a right-side drawer */
  .panel{
    position:fixed;top:calc(var(--hdr) + var(--safe-t));bottom:0;right:0;width:min(340px,90vw);
    z-index:40;transform:translateX(105%);transition:transform .26s cubic-bezier(.3,.9,.3,1);
    box-shadow:-18px 0 50px rgba(0,0,0,.55);border-right:0;border-left:1px solid var(--line-2);
    border-start-start-radius:var(--r-xl);
  }
  .panel.open{transform:none}
  .sheet-close{display:grid}
  #panelToggle{display:grid!important}
  .doc{max-width:150px}
  .top-actions .btn span{display:none}
  .top-actions .btn{padding:8px 10px}
}

/* ---------- phones ---------- */
@media(max-width:700px){
  :root{--hdr:52px;--ctx:46px;--status:26px}
  .app{padding-bottom:0}
  .brand,.back-btn{display:none}
  .workspace{
    grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) var(--rail);
    grid-template-areas:"stage" "tools";
  }
  .toolbar{
    flex-direction:row;align-items:stretch;gap:2px;padding:5px 6px calc(5px + var(--safe-b));
    border-left:0;border-top:1px solid var(--line);
    overflow-x:auto;overflow-y:hidden;scrollbar-width:none;
    background:rgba(16,18,25,.94);
  }
  .toolbar::-webkit-scrollbar{display:none}
  .tool-group{flex-direction:row;gap:2px}
  .tool-divider{width:1px;height:auto;margin:6px 4px;align-self:stretch}
  .tool-spacer{display:none}
  .tool{min-width:56px;min-height:52px;padding:5px 3px;font-size:9.5px;gap:3px}
  .tool svg{width:20px;height:20px}
  .tool.active::before{display:none}
  .doc{max-width:132px;flex:1}
  .doc-name{font-size:12px}
  .top-actions{gap:4px}
  .top-actions .btn{padding:8px 9px;min-width:38px}
  .statusbar{font-size:10px;padding:0 10px;gap:7px}
  #engineInfo{display:none}
  .empty-card{padding:18px 15px}
  .empty-card h2{font-size:16px}
  .empty-card p{font-size:11.5px;line-height:1.9}
  .empty-actions{flex-direction:column-reverse}
  .empty-actions .btn{width:100%}
  .preset-grid{grid-template-columns:repeat(auto-fill,minmax(88px,1fr))}

  /* bottom sheet */
  .panel{
    top:auto;left:0;right:0;bottom:0;width:auto;height:min(78vh,620px);
    border-radius:20px 20px 0 0;border-left:0;
    border-top:1px solid var(--line-2);
    transform:translateY(105%);box-shadow:0 -20px 60px rgba(0,0,0,.6);
  }
  .panel.open{transform:none}
  .panel-head{padding-top:12px}
  .sheet-grip{
    display:block;position:absolute;top:5px;left:50%;translate:-50% 0;
    width:44px;height:4px;border-radius:99px;background:var(--line-2);
  }
  .panel-body{padding:12px 12px calc(20px + var(--safe-b))}
  .modal{padding:0;align-items:flex-end}
  .modal-card{
    width:100%;max-height:92vh;border-radius:20px 20px 0 0;
    animation:slideUp .26s cubic-bezier(.2,.9,.3,1);
  }
  .modal-actions{padding-bottom:calc(14px + var(--safe-b))}
  .modal-body{padding-bottom:10px}
  .kbd-list{grid-template-columns:1fr}
  .toasts{inset-inline:12px;bottom:calc(var(--rail) + 14px + var(--safe-b))}
  .align-grid{grid-template-columns:repeat(6,1fr)}
  .ctx-tool{display:none}
  .contextbar{gap:6px}
  .zoom-value{min-width:44px}
  /* the tool rail is at the bottom on phones: keep dock + toasts above it */
  .size-dock{bottom:calc(var(--rail) + 12px + var(--safe-b));gap:8px;padding:6px 11px}
  .size-dock .ctx-mini-label{display:none}
  .size-dock .ctx-mini-sep{display:none}
  .size-dock input[type=range]{min-width:110px}
  .size-dock .ctx-select{min-width:66px;padding:4px 22px 4px 8px;height:30px;font-size:11px}
  .overlay{bottom:calc(var(--rail) + 14px + var(--safe-b))}
  body.has-dock .toasts{bottom:calc(var(--rail) + 64px + var(--safe-b))}
  body.is-busy .toasts{bottom:calc(var(--rail) + 64px + var(--safe-b))}
}
@keyframes slideUp{from{transform:translateY(26px);opacity:.4}to{transform:none;opacity:1}}

@media(max-width:380px){
  .tool{min-width:50px;font-size:9px}
  .tool svg{width:18px;height:18px}
  .ctx-mini-label{display:none}
}

/* landscape phones: shrink chrome */
@media(max-height:520px) and (max-width:980px){
  :root{--hdr:46px;--rail:54px;--ctx:42px;--status:0px}
  .statusbar{display:none}
  .tool{min-height:44px;min-width:48px;font-size:8.5px}
  .tool svg{width:17px;height:17px}
  .brand,.back-btn{display:none}
}

/* ---------- accessibility / perf ---------- */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}
/* mobile GPU relief: no blur, fewer shadows */
@media (pointer:coarse){
  .canvas-shell{box-shadow:0 10px 30px rgba(0,0,0,.5)}
  .modal-card,.empty-card,.overlay-card{box-shadow:0 18px 44px rgba(0,0,0,.6)}
}