/* style.css — all styling */
:root{
  --bg:#14111e;
  --bg2:#1b1729;
  --panel:#221d35;
  --panel2:#2a2440;
  --panel-hi:#322a4a;
  --ink:#f5edff;
  --ink-soft:#d8cfee;
  --muted:#988db5;
  --muted-dim:#6f6490;
  --line:rgba(255,255,255,0.06);
  --line-hi:rgba(255,255,255,0.12);
  --grid:rgba(255,255,255,0.07);
  --checker1:#1f1a2e;
  --checker2:#1a1626;
  --shadow:0 1px 0 rgba(255,255,255,0.04) inset, 0 8px 0 rgba(0,0,0,0.32), 0 18px 40px rgba(0,0,0,0.4);
  --shadow-sm:0 1px 0 rgba(255,255,255,0.05) inset, 0 3px 0 rgba(0,0,0,0.28), 0 6px 18px rgba(0,0,0,0.25);
  --shadow-press:0 1px 0 rgba(255,255,255,0.03) inset, 0 1px 0 rgba(0,0,0,0.25), 0 2px 8px rgba(0,0,0,0.2);
  --accent:#FF6B9D;
  --accent2:#4ECDC4;
  --accent-grad:linear-gradient(135deg,#FF6B9D 0%,#FF8C42 100%);
  --radius:20px;
  --radius-sm:12px;
  --radius-xs:8px;
  --ease:cubic-bezier(.34,1.56,.64,1);
  --ease-out:cubic-bezier(.22,1,.36,1);
  color-scheme:dark;
}
@media (prefers-color-scheme: light){
  :root{
    --bg:#faf5ed;
    --bg2:#f5ecdb;
    --panel:#ffffff;
    --panel2:#fbf6ee;
    --panel-hi:#f5ede0;
    --ink:#241f38;
    --ink-soft:#4a4262;
    --muted:#8a7d9a;
    --muted-dim:#aaa0b8;
    --line:rgba(36,31,56,0.07);
    --line-hi:rgba(36,31,56,0.14);
    --grid:rgba(36,31,56,0.09);
    --checker1:#f3ece0;
    --checker2:#ede5d6;
    --shadow:0 1px 0 rgba(255,255,255,0.8) inset, 0 6px 0 rgba(36,31,56,0.08), 0 14px 32px rgba(36,31,56,0.10);
    --shadow-sm:0 1px 0 rgba(255,255,255,0.7) inset, 0 3px 0 rgba(36,31,56,0.07), 0 5px 14px rgba(36,31,56,0.07);
    --shadow-press:0 1px 0 rgba(255,255,255,0.5) inset, 0 1px 0 rgba(36,31,56,0.06), 0 2px 6px rgba(36,31,56,0.06);
  }
}
html[data-theme="dark"]{
  --bg:#14111e;--bg2:#1b1729;--panel:#221d35;--panel2:#2a2440;--panel-hi:#322a4a;
  --ink:#f5edff;--ink-soft:#d8cfee;--muted:#988db5;--muted-dim:#6f6490;
  --line:rgba(255,255,255,0.06);--line-hi:rgba(255,255,255,0.12);--grid:rgba(255,255,255,0.07);
  --checker1:#1f1a2e;--checker2:#1a1626;
  --shadow:0 1px 0 rgba(255,255,255,0.04) inset, 0 8px 0 rgba(0,0,0,0.32), 0 18px 40px rgba(0,0,0,0.4);
  --shadow-sm:0 1px 0 rgba(255,255,255,0.05) inset, 0 3px 0 rgba(0,0,0,0.28), 0 6px 18px rgba(0,0,0,0.25);
  --shadow-press:0 1px 0 rgba(255,255,255,0.03) inset, 0 1px 0 rgba(0,0,0,0.25), 0 2px 8px rgba(0,0,0,0.2);
  color-scheme:dark;
}
html[data-theme="light"]{
  --bg:#faf5ed;--bg2:#f5ecdb;--panel:#ffffff;--panel2:#fbf6ee;--panel-hi:#f5ede0;
  --ink:#241f38;--ink-soft:#4a4262;--muted:#8a7d9a;--muted-dim:#aaa0b8;
  --line:rgba(36,31,56,0.07);--line-hi:rgba(36,31,56,0.14);--grid:rgba(36,31,56,0.09);
  --checker1:#f3ece0;--checker2:#ede5d6;
  --shadow:0 1px 0 rgba(255,255,255,0.8) inset, 0 6px 0 rgba(36,31,56,0.08), 0 14px 32px rgba(36,31,56,0.10);
  --shadow-sm:0 1px 0 rgba(255,255,255,0.7) inset, 0 3px 0 rgba(36,31,56,0.07), 0 5px 14px rgba(36,31,56,0.07);
  --shadow-press:0 1px 0 rgba(255,255,255,0.5) inset, 0 1px 0 rgba(36,31,56,0.06), 0 2px 6px rgba(36,31,56,0.06);
  color-scheme:light;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;height:100%;}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  overflow:hidden;
  touch-action:manipulation;
  -webkit-tap-highlight-color:transparent;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

#app{
  height:100%;
  display:flex;
  flex-direction:column;
  max-width:720px;
  margin:0 auto;
  background:
    radial-gradient(900px 420px at 88% -8%, rgba(255,107,157,0.12), transparent 58%),
    radial-gradient(700px 400px at -8% 108%, rgba(78,205,196,0.10), transparent 58%),
    radial-gradient(500px 360px at 50% 48%, rgba(155,93,229,0.05), transparent 70%),
    var(--bg);
}

/* ---------- entrance animation ---------- */
@keyframes slideIn{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:translateY(0);}
}
@keyframes thumbIn{
  from{opacity:0;transform:scale(0.6) translateY(6px);}
  to{opacity:1;transform:scale(1) translateY(0);}
}
@keyframes flash{
  0%{box-shadow:var(--shadow), 0 0 0 0 rgba(255,107,157,0.45);}
  50%{box-shadow:var(--shadow), 0 0 0 16px rgba(255,107,157,0);}
  100%{box-shadow:var(--shadow), 0 0 0 0 rgba(255,107,157,0);}
}
@keyframes pop{
  0%{transform:scale(1);}
  40%{transform:scale(1.12);}
  100%{transform:scale(1);}
}

#topbar{animation:slideIn .5s var(--ease-out) both;}
#paletteBar{animation:slideIn .5s var(--ease-out) .06s both;}
#canvasWrap{animation:slideIn .5s var(--ease-out) .12s both;}
#toolbar{animation:slideIn .5s var(--ease-out) .18s both;}
#gallerySection{animation:slideIn .5s var(--ease-out) .24s both;}

/* ---------- header ---------- */
#topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 22px 4px;
}
.brand{display:flex;align-items:center;gap:12px;}
h1{
  font-size:23px;font-weight:800;margin:0;letter-spacing:-0.025em;
  text-shadow:0 1px 0 rgba(0,0,0,0.18);
  background:linear-gradient(135deg,var(--ink) 0%,var(--ink-soft) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.logo-dot{
  width:22px;height:22px;border-radius:8px;
  background:linear-gradient(135deg,#FF6B9D 0%,#FFD23F 50%,#4ECDC4 100%);
  box-shadow:0 3px 0 rgba(0,0,0,0.3), 0 0 18px rgba(255,107,157,0.35);
  flex-shrink:0;
}
.counter{
  font-weight:700;font-size:11px;color:var(--ink-soft);
  background:var(--panel);padding:7px 14px;border-radius:999px;
  border:1.5px solid var(--line);
  letter-spacing:0.02em;
  box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease);
}
.counter:hover{transform:translateY(-1px);}

/* ---------- palette bar ---------- */
#paletteBar{
  display:flex;align-items:center;gap:10px;
  padding:10px 22px 8px;flex-wrap:wrap;
}
.bar-label{
  font-size:10px;font-weight:800;letter-spacing:0.14em;text-transform:uppercase;
  color:var(--muted);width:100%;margin-bottom:6px;
}
.swatches{display:flex;gap:9px;flex-wrap:wrap;}
.swatch{
  width:36px;height:36px;border-radius:var(--radius-sm);border:3px solid rgba(255,255,255,0.18);
  cursor:pointer;padding:0;box-shadow:var(--shadow-sm);
  transition:transform .18s var(--ease), box-shadow .18s ease, border-color .18s ease;
  position:relative;
}
.swatch:hover{transform:translateY(-3px);border-color:rgba(255,255,255,0.3);}
.swatch:active{transform:translateY(1px);box-shadow:var(--shadow-press);}
.swatch.active{
  outline:2.5px solid var(--ink);
  outline-offset:3px;
  transform:translateY(-4px);
  box-shadow:0 1px 0 rgba(255,255,255,0.06) inset, 0 6px 0 rgba(0,0,0,0.3), 0 10px 24px rgba(0,0,0,0.3);
}
.swatch:focus-visible{outline:2.5px solid var(--accent2);outline-offset:3px;}
.chip{
  font-family:inherit;font-weight:700;font-size:12px;
  background:var(--panel);color:var(--ink-soft);
  border:1.5px solid var(--line);
  padding:8px 15px;border-radius:999px;cursor:pointer;
  box-shadow:var(--shadow-sm);
  transition:transform .12s var(--ease), border-color .15s ease, color .15s ease;
  letter-spacing:0.02em;
}
.chip:active{transform:translateY(3px);box-shadow:var(--shadow-press);}
.chip:hover{border-color:var(--accent);color:var(--ink);}
.chip:focus-visible{outline:2.5px solid var(--accent2);outline-offset:2px;}

/* ---------- canvas ---------- */
#canvasWrap{
  flex:1 1 auto;min-height:0;
  display:flex;align-items:center;justify-content:center;
  padding:6px 18px;
}
.canvas-frame{
  padding:11px;background:var(--panel);
  border-radius:26px;
  border:1.5px solid var(--line);
  box-shadow:var(--shadow);
  position:relative;
}
.canvas-frame::before{
  content:'';position:absolute;inset:11px;
  border-radius:17px;pointer-events:none;
  box-shadow:inset 0 2px 10px rgba(0,0,0,0.18);
}
.canvas-frame::after{
  content:'';position:absolute;inset:0;
  border-radius:26px;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,0.05) 0%,transparent 30%);
}
.canvas-frame.flash{animation:flash .7s ease-out;}
#canvas{
  display:block;border-radius:17px;
  touch-action:none;
  image-rendering:pixelated;
  image-rendering:crisp-edges;
  background:var(--checker1);
  cursor:crosshair;
}

/* ---------- hover cell indicator ---------- */
.hover-cell{
  position:absolute;
  top:11px;left:11px;
  width:16px;height:16px;
  border:2px solid rgba(255,255,255,0.9);
  border-radius:3px;
  pointer-events:none;
  opacity:0;
  transition:opacity .15s ease;
  box-shadow:0 0 0 1px rgba(0,0,0,0.4), 0 0 10px rgba(0,0,0,0.3);
  z-index:2;
}
.hover-cell.show{opacity:0.65;}

/* ---------- toolbar ---------- */
#toolbar{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:8px 22px 10px;flex-wrap:wrap;
}
.current-wrap{display:flex;align-items:center;gap:11px;}
.swatch-current{
  width:38px;height:38px;border-radius:var(--radius-sm);
  border:3px solid rgba(255,255,255,0.22);
  box-shadow:var(--shadow-sm);
  transition:all .25s var(--ease);
  flex-shrink:0;
}
.swatch-current.eraser{
  background:
    linear-gradient(45deg,#ddd 25%,transparent 25%) 0 0/10px 10px,
    linear-gradient(-45deg,#ddd 25%,transparent 25%) 0 0/10px 10px,
    linear-gradient(45deg,transparent 75%,#ddd 75%) 0 0/10px 10px,
    linear-gradient(-45deg,transparent 75%,#ddd 75%) 0 0/10px 10px,
    #888;
}
.swatch-current.fill{
  border-style:dashed;
  border-color:rgba(255,255,255,0.5);
}
#currentLabel{font-weight:700;font-size:14px;letter-spacing:-0.015em;color:var(--ink-soft);}
.tools{display:flex;gap:7px;flex-wrap:wrap;}
.tool{
  font-family:inherit;font-weight:700;font-size:13px;
  background:var(--panel2);color:var(--ink-soft);
  border:1.5px solid var(--line);
  padding:10px 15px;border-radius:var(--radius-sm);cursor:pointer;
  box-shadow:0 1px 0 rgba(255,255,255,0.04) inset, 0 4px 0 rgba(0,0,0,0.22);
  transition:transform .1s var(--ease), box-shadow .1s ease, color .15s ease, border-color .15s ease;
  min-width:52px;
  letter-spacing:0.01em;
}
.tool:hover{border-color:var(--line-hi);color:var(--ink);}
.tool:active{transform:translateY(3px);box-shadow:var(--shadow-press);}
.tool:focus-visible{outline:2.5px solid var(--accent2);outline-offset:2px;}
.tool.primary{
  background:linear-gradient(180deg,#FF8C42,#FF6B9D);
  border-color:rgba(255,255,255,0.22);color:#fff;
  box-shadow:0 1px 0 rgba(255,255,255,0.2) inset, 0 4px 0 #b8436e;
  text-shadow:0 1px 0 rgba(0,0,0,0.15);
}
.tool.primary:active{box-shadow:0 1px 0 rgba(255,255,255,0.1) inset, 0 1px 0 #b8436e;}
.tool.primary:hover{color:#fff;}
.tool.active{
  background:linear-gradient(180deg,#4ECDC4,#3bb4ab);
  color:#063a36;border-color:rgba(255,255,255,0.3);
  box-shadow:0 1px 0 rgba(255,255,255,0.2) inset, 0 4px 0 #2a8a83;
  text-shadow:none;
}
.tool.active:active{box-shadow:0 1px 0 rgba(255,255,255,0.1) inset, 0 1px 0 #2a8a83;}
.tool.active:hover{color:#063a36;}

/* ---------- gallery ---------- */
#gallerySection{
  padding:4px 22px 20px;
  flex-shrink:0;
}
.gallery-head{
  display:flex;justify-content:space-between;align-items:baseline;
  font-size:10px;font-weight:800;letter-spacing:0.14em;text-transform:uppercase;
  margin-bottom:10px;
  color:var(--muted);
}
.muted{color:var(--muted-dim);font-weight:600;text-transform:none;letter-spacing:0;font-size:12px;}
.gallery{
  display:flex;gap:10px;overflow-x:auto;
  padding:6px 2px 10px;
  min-height:92px;
  scroll-behavior:smooth;
  -webkit-overflow-scrolling:touch;
}
.gallery::-webkit-scrollbar{height:5px;}
.gallery::-webkit-scrollbar-track{background:transparent;}
.gallery::-webkit-scrollbar-thumb{background:var(--panel2);border-radius:8px;}
.gallery::-webkit-scrollbar-thumb:hover{background:var(--panel-hi);}
.gallery-empty{
  color:var(--muted-dim);font-size:13px;font-weight:500;
  padding:24px 6px;
  display:flex;align-items:center;
  letter-spacing:0.01em;
}
.thumb{
  position:relative;flex:0 0 auto;
  width:80px;height:80px;
  padding:0;border:1.5px solid var(--line);
  background:var(--panel);border-radius:var(--radius-sm);cursor:pointer;
  box-shadow:var(--shadow-sm);
  transition:transform .15s var(--ease), border-color .15s ease, box-shadow .15s ease;
  overflow:visible;
  animation:thumbIn .4s var(--ease) both;
}
.thumb:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:0 1px 0 rgba(255,255,255,0.05) inset, 0 6px 0 rgba(0,0,0,0.28), 0 10px 22px rgba(0,0,0,0.3);}
.thumb:active{transform:translateY(0);}
.thumb:focus-visible{outline:2.5px solid var(--accent2);outline-offset:3px;}
.thumb-canvas{
  position:absolute;inset:6px;
  display:flex;align-items:center;justify-content:center;
  background:var(--checker1);
  border-radius:var(--radius-xs);overflow:hidden;
}
.thumb-canvas canvas{width:100%;height:100%;image-rendering:pixelated;}
.thumb-del{
  position:absolute;top:-8px;right:-8px;
  width:24px;height:24px;border-radius:50%;
  background:#FF5252;color:#fff;font-size:15px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;border:2.5px solid var(--bg);
  opacity:0;transition:opacity .15s ease, transform .15s var(--ease);
  cursor:pointer;
  box-shadow:0 2px 8px rgba(0,0,0,0.35);
}
.thumb-del:hover{transform:scale(1.18);background:#ff3838;}
.thumb-del:active{transform:scale(0.95);}
.thumb:hover .thumb-del,.thumb:focus-visible .thumb-del{opacity:1;}
@media (hover:none){ .thumb-del{opacity:0.7;} }

/* ---------- modal ---------- */
.modal{
  position:fixed;inset:0;z-index:50;
  display:flex;align-items:center;justify-content:center;
  background:rgba(8,6,16,0.6);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  padding:20px;
  animation:slideIn .3s var(--ease-out);
  overflow-y:auto;
}
.modal.hidden{display:none;}
.modal-card{
  background:var(--panel);border:1.5px solid var(--line-hi);
  border-radius:26px;padding:26px;
  max-width:380px;width:100%;
  box-shadow:var(--shadow);
  text-align:center;
}
.modal-card h2{margin:0 0 4px;font-size:21px;font-weight:800;letter-spacing:-0.025em;}
.modal-sub{margin:0 0 20px;color:var(--muted);font-size:13px;font-weight:500;}
.full-swatches{
  display:grid;grid-template-columns:repeat(6,1fr);
  gap:8px;margin-bottom:22px;
}
.full-swatches .swatch.lg{
  width:100%;height:auto;border-radius:var(--radius-xs);
  aspect-ratio:1/1;
}
.eraser-swatch{
  background:
    linear-gradient(45deg,#ccc 25%,transparent 25%) 0 0/12px 12px,
    linear-gradient(-45deg,#ccc 25%,transparent 25%) 0 0/12px 12px,
    linear-gradient(45deg,transparent 75%,#ccc 75%) 0 0/12px 12px,
    linear-gradient(-45deg,transparent 75%,#ccc 75%) 0 0/12px 12px,
    #fff;
}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:var(--bg);
  font-weight:700;font-size:13px;
  padding:12px 24px;border-radius:999px;
  box-shadow:0 8px 30px rgba(0,0,0,0.45), 0 2px 0 rgba(0,0,0,0.1);
  opacity:0;transition:transform .3s var(--ease), opacity .25s ease;
  z-index:60;pointer-events:none;max-width:90%;text-align:center;
  letter-spacing:0.01em;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
.toast.hidden{display:none;}

/* ---------- responsive ---------- */
@media (max-width:380px){
  h1{font-size:19px;}
  .logo-dot{width:19px;height:19px;}
  .swatch{width:32px;height:32px;}
  .swatch-current{width:34px;height:34px;}
  .tool{padding:9px 12px;font-size:12px;min-width:46px;}
  #paletteBar{padding:8px 16px 8px;}
  #toolbar{padding:8px 16px 10px;gap:8px;}
  #gallerySection{padding:4px 16px 16px;}
  #topbar{padding:14px 16px 4px;}
  .tools{gap:6px;}
  .full-swatches{grid-template-columns:repeat(5,1fr);}
  .thumb{width:72px;height:72px;}
}
@media (min-width:640px){
  .swatches{gap:11px;}
  .swatch{width:40px;height:40px;}
  .swatch-current{width:42px;height:42px;}
  h1{font-size:25px;}
  .logo-dot{width:24px;height:24px;}
  .full-swatches{grid-template-columns:repeat(6,1fr);}
}