:root{
  --bg:#ffffff; --text:#000; --muted:#6e6e6e; --secondary:#595959; --paragraph:#2b2b2b;
  --border:rgba(0,0,0,.14); --border-hover:rgba(0,0,0,.4);
  --radius:4px; --shadow:0 1px 2px rgba(0,0,0,.05); --shadow-hover:0 4px 8px rgba(0,0,0,.08);
  --accent:#000; --accent-light:rgba(0,0,0,.04); --tint:rgba(0,0,0,.03); --tint2:rgba(0,0,0,.05);
  --fill:#f5c518; /* color de la forma, lo actualiza el JS */
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:'Inknut Antiqua', Georgia, 'Times New Roman', serif;
  -webkit-font-smoothing:antialiased; font-size:16px; line-height:1.8;
}
:focus-visible{outline:2px solid var(--text); outline-offset:2px; border-radius:2px}

.container{width:min(960px, 92vw); margin:0 auto}

a{color:var(--text); text-decoration:none; border-bottom:1px solid rgba(0,0,0,.5)}
a:hover{border-bottom-color:var(--text); background:var(--accent-light)}

/* hero */
.hero{padding:7dvh 0 0}
.hero h1{margin:0; font-size:clamp(30px,6dvw,46px); font-weight:700; letter-spacing:-.02em; line-height:1.1}
.hero .subtitle{margin:16px 0 0; font-size:clamp(15px,1.8dvw,17px); font-weight:400; color:var(--secondary); line-height:1.7; max-width:60ch}
.hero .meta{margin:12px 0 0; font-size:12px; font-weight:400; color:var(--muted); letter-spacing:.02em; text-transform:lowercase}

/* layout app */
.app{display:grid; grid-template-columns:1fr 290px; gap:26px; align-items:start; margin-top:34px}
@media (max-width:760px){ .app{grid-template-columns:1fr} }

/* stage / preview */
.stage{
  position:relative; aspect-ratio:4/3; width:100%;
  border:1px solid var(--border); border-radius:var(--radius); overflow:hidden;
  display:grid; place-items:center;
  background:#0c0c0c;
}
.stage[data-bg="light"]{background:#f2efe7}
.stage[data-bg="dark"]{background:#0c0c0c}
.stage[data-bg="glow"]{background:radial-gradient(120% 100% at 62% 58%, color-mix(in srgb, var(--fill) 42%, transparent) 0%, transparent 55%), #0c0c0c}
.stage-glow{
  position:absolute; inset:0; pointer-events:none; opacity:0; transition:opacity .25s;
  background:radial-gradient(40% 36% at 62% 58%, color-mix(in srgb, var(--fill) 85%, transparent) 0%, transparent 70%);
  filter:blur(8px);
}
.stage[data-bg="glow"] .stage-glow{opacity:1}
.stage-shape{position:relative; width:64%; height:64%; display:flex; align-items:center; justify-content:center}
.stage-shape svg{max-width:100%; max-height:100%; width:auto; height:auto; overflow:visible; filter:drop-shadow(0 6px 30px rgba(0,0,0,.35))}

.dice, .save{
  position:absolute; border-radius:999px;
  border:1px solid rgba(255,255,255,.25); background:rgba(20,20,20,.6); backdrop-filter:blur(6px);
  color:#fff; cursor:pointer; line-height:1; transition:transform .25s, background .15s;
}
.dice{right:12px; bottom:12px; width:46px; height:46px; font-size:21px}
.save{right:12px; top:12px; width:38px; height:38px; font-size:18px}
.dice:hover, .save:hover{background:rgba(40,40,40,.85)}
.dice:active{transform:rotate(180deg) scale(.92)}
.save:active{transform:scale(.9)}
.stage[data-bg="light"] .dice, .stage[data-bg="light"] .save{border-color:rgba(0,0,0,.2); background:rgba(255,255,255,.7); color:#111}
.stage-seed{
  position:absolute; left:12px; bottom:14px; font-size:11px; letter-spacing:.04em;
  color:rgba(255,255,255,.45); font-family:ui-monospace,Menlo,Consolas,monospace;
}
.stage[data-bg="light"] .stage-seed{color:rgba(0,0,0,.4)}

/* panel + controls */
.panel{display:flex; flex-direction:column; gap:18px}
.ctrl{display:flex; flex-direction:column; gap:8px}
.ctrl > label{font-size:12.5px; font-weight:600; text-transform:uppercase; letter-spacing:.05em; color:var(--secondary); display:flex; align-items:baseline; gap:7px; flex-wrap:wrap}
.ctrl .hint{font-weight:400; text-transform:none; letter-spacing:0; color:var(--muted); font-size:11.5px}
.ctrl output{font-weight:400; color:var(--text); font-variant-numeric:tabular-nums; margin-left:auto; font-size:12.5px}

input[type=range]{width:100%; accent-color:var(--text); cursor:pointer; margin:2px 0}

/* pill switch (mode) */
.switch{display:inline-flex; border:1px solid var(--border); border-radius:999px; padding:3px; gap:2px; align-self:flex-start}
.switch button{border:0; background:transparent; color:var(--secondary); font-family:inherit; font-size:14px; font-weight:600; padding:9px 22px; border-radius:999px; cursor:pointer; line-height:1}
.switch button[aria-pressed="true"]{background:var(--accent); color:#fff}

/* chips */
.chips{display:flex; gap:6px; flex-wrap:wrap}
.chips button{border:1px solid var(--border); background:#fff; color:var(--secondary); font-family:inherit; font-size:13px; font-weight:600; padding:7px 13px; border-radius:999px; cursor:pointer; line-height:1}
.chips button:hover{border-color:var(--text); color:var(--text)}
.chips button[aria-pressed="true"]{background:var(--accent); color:#fff; border-color:var(--accent)}

/* swatches */
.swatches{display:flex; gap:8px; align-items:center; flex-wrap:wrap}
.sw{width:26px; height:26px; border-radius:999px; border:1px solid var(--border); background:var(--c); cursor:pointer; padding:0; transition:transform .12s}
.sw:hover{transform:scale(1.12)}
.sw[aria-pressed="true"]{box-shadow:0 0 0 2px #fff, 0 0 0 4px var(--text)}
input[type=color]{width:34px; height:30px; padding:0; border:1px solid var(--border); border-radius:var(--radius); background:#fff; cursor:pointer}

/* toggle checkbox */
.toggle{display:flex; align-items:center; gap:9px; font-size:13.5px; font-weight:400; color:var(--paragraph); text-transform:none; letter-spacing:0; cursor:pointer; margin-top:6px}
.toggle input{width:18px; height:18px; accent-color:var(--text); cursor:pointer}
.subctrl{display:flex; align-items:center; gap:9px; margin:6px 0 2px; padding-left:27px}
.subctrl .hint{font-size:12px; color:var(--muted)}
.subctrl output{font-size:12.5px; color:var(--secondary); font-variant-numeric:tabular-nums; min-width:18px; text-align:right}

/* botón fantasma (nube original, etc.) */
.ghost{border:1px dashed var(--border-hover); background:transparent; color:var(--secondary); font-family:inherit; font-size:13.5px; font-weight:600; padding:10px 14px; border-radius:var(--radius); cursor:pointer; width:100%}
.ghost:hover{border-color:var(--text); color:var(--text)}
.ghost[aria-pressed="true"]{background:var(--accent); color:#fff; border-style:solid; border-color:var(--accent)}

/* seed */
.seed-row{display:flex; gap:6px}
.seed-row input{flex:1; min-width:0; font-family:ui-monospace,Menlo,Consolas,monospace; font-size:13px; padding:8px 11px; border:1px solid var(--border); border-radius:var(--radius); background:#fff; color:var(--text)}
.seed-row input:focus{outline:none; border-color:var(--text)}
.seed-row button{border:1px solid var(--border); background:#fff; border-radius:var(--radius); width:38px; cursor:pointer; font-size:16px; color:var(--secondary)}
.seed-row button:hover{border-color:var(--text); color:var(--text)}

/* variaciones */
.variations{margin:26px auto 0}
.btn.wide{width:100%}
.variations .grid-head, .variations .grid{display:none}
.variations[data-open] .grid-head{display:flex}
.variations[data-open] .grid{display:grid}
.grid-head{align-items:center; justify-content:space-between; margin:14px 0 0; font-size:12.5px; text-transform:uppercase; letter-spacing:.05em; color:var(--secondary)}
.link{border:0; background:none; font-family:inherit; font-size:12.5px; font-weight:600; color:var(--secondary); cursor:pointer; text-transform:none; letter-spacing:0}
.link:hover{color:var(--text); text-decoration:underline}
.grid{grid-template-columns:repeat(3,1fr); gap:10px; margin-top:10px}
.gcell{aspect-ratio:1; border:1px solid var(--border); border-radius:var(--radius); background:#0d0d0d; display:grid; place-items:center; cursor:pointer; padding:13%; transition:border-color .15s, transform .12s}
.gcell:hover{border-color:var(--text); transform:translateY(-1px)}
.gcell svg{max-width:100%; max-height:100%; width:auto; height:auto}

/* guardados */
.saved-section{margin-top:18px}
.saved{display:flex; flex-wrap:wrap; gap:10px; margin-top:10px}
.scell{position:relative}
.sthumb{width:74px; height:74px; border:1px solid var(--border); border-radius:var(--radius); background:#0d0d0d; display:grid; place-items:center; cursor:pointer; padding:11%}
.sthumb:hover{border-color:var(--text)}
.sthumb svg{max-width:100%; max-height:100%; width:auto; height:auto}
.sdel{position:absolute; top:-7px; right:-7px; width:20px; height:20px; border-radius:999px; border:1px solid var(--border-hover); background:#fff; color:var(--secondary); font-size:13px; line-height:1; cursor:pointer; display:grid; place-items:center}
.sdel:hover{border-color:var(--text); color:var(--text)}

/* export */
.export{margin:30px auto 0; border-top:1px solid var(--border); padding-top:22px}
.export-row{display:flex; gap:9px; flex-wrap:wrap}
.btn{border:1px solid var(--border-hover); background:#fff; color:var(--text); font-family:inherit; font-size:14px; font-weight:600; padding:11px 18px; border-radius:var(--radius); cursor:pointer; transition:background .15s, border-color .15s}
.btn:hover{background:var(--accent-light)}
.btn.primary{background:var(--accent); color:#fff; border-color:var(--accent)}
.btn.primary:hover{background:#222}
.toast{min-height:20px; margin:12px 0 0; font-size:13.5px; color:var(--secondary)}
.toast.show{color:var(--text)}

/* how-to */
.how{border:1px solid var(--border); border-radius:var(--radius); background:var(--tint); margin:14px 0 0; padding:0 16px}
.how > summary{font-size:14.5px; font-weight:600; padding:13px 0; cursor:pointer}
.how-inner{padding:2px 0 16px; font-size:14.5px; line-height:1.8; color:var(--paragraph)}
.how-inner ol{margin:0 0 10px; padding-left:20px}
.how-inner li{margin:7px 0}
.how-note{margin:6px 0 0; font-size:13.5px; color:var(--secondary)}
kbd{font-family:ui-monospace,Menlo,Consolas,monospace; font-size:12.5px; font-weight:600; background:#fff; border:1px solid var(--border-hover); border-bottom-width:2px; border-radius:4px; padding:2px 6px; white-space:nowrap}
code{font-family:ui-monospace,Menlo,Consolas,monospace; font-size:.86em; background:var(--tint2); padding:1px 5px; border-radius:3px}

/* footer */
footer{margin:46px auto; font-size:12.5px; color:var(--muted); text-transform:lowercase}
footer a{color:var(--secondary); border-bottom-color:var(--border)}