/* PIXELFIX — amber pixel-lab theme */
:root{
  --bg:#0e0d0b; --bg2:#15130f; --panel:#1b1813; --panel2:#211d16;
  --line:#322c20; --line2:#403726;
  --ink:#ece4d2; --muted:#9a907a; --faint:#6c6452;
  --amber:#f5b942; --amber-dim:#b98a2e; --teal:#43d4c4; --red:#e8694a;
  --shadow:0 14px 40px rgba(0,0,0,.5);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --pixel:"Silkscreen","JetBrains Mono",monospace;
}
*{box-sizing:border-box}
html,body{margin:0}
body{
  font-family:var(--mono); color:var(--ink); background:
    radial-gradient(1200px 600px at 80% -10%, #1d1a14 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 110%, #181712 0%, transparent 55%),
    var(--bg);
  min-height:100vh; line-height:1.5; letter-spacing:.01em;
}
.scanlines{position:fixed;inset:0;pointer-events:none;z-index:50;opacity:.05;
  background:repeating-linear-gradient(0deg,#fff 0 1px,transparent 1px 3px);mix-blend-mode:overlay}

/* ---- topbar ---- */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px clamp(16px,4vw,46px);border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:16px}
.logo-mark{width:34px;height:34px;flex:none;background:
  conic-gradient(from 45deg,var(--amber) 0 25%,#0e0d0b 0 50%,var(--amber) 0 75%,#0e0d0b 0 100%);
  background-size:17px 17px;border:2px solid var(--amber-dim);image-rendering:pixelated;
  box-shadow:0 0 0 3px rgba(245,185,66,.12)}
h1{font-family:var(--pixel);font-size:clamp(20px,3.2vw,30px);margin:0;letter-spacing:.02em}
h1 span{color:var(--amber)}
.tagline{margin:2px 0 0;color:var(--muted);font-size:12.5px}
.badge{font-size:11px;color:var(--amber);border:1px solid var(--amber-dim);
  padding:6px 11px;border-radius:2px;background:rgba(245,185,66,.07);white-space:nowrap}

/* ---- layout ---- */
.layout{display:grid;grid-template-columns:minmax(320px,380px) 1fr;gap:24px;
  padding:24px clamp(16px,4vw,46px) 56px;align-items:start}
@media(max-width:920px){.layout{grid-template-columns:1fr}}

/* ---- cards ---- */
.controls{display:flex;flex-direction:column;gap:14px;position:sticky;top:18px}
@media(max-width:920px){.controls{position:static}}
.card{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);
  border-radius:4px;padding:16px 16px 18px;box-shadow:var(--shadow)}
.card h2{font-family:var(--pixel);font-size:13px;margin:0 0 12px;display:flex;align-items:center;gap:9px;letter-spacing:.02em}
.card .num{display:grid;place-items:center;width:20px;height:20px;background:var(--amber);
  color:#1a1305;font-size:11px;border-radius:2px;font-family:var(--mono);font-weight:700}
.opt{margin-left:auto;font-size:10px;color:var(--faint);border:1px solid var(--line2);padding:2px 6px;border-radius:2px;font-family:var(--mono)}
.head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.head h2{margin:0}
.hint{font-size:11.5px;color:var(--muted);margin:10px 0 0}
.hint b{color:var(--ink);font-weight:700}

/* dropzone */
.dropzone{display:flex;flex-direction:column;gap:5px;align-items:center;justify-content:center;
  text-align:center;padding:26px 14px;border:2px dashed var(--line2);border-radius:3px;
  background:rgba(245,185,66,.03);cursor:pointer;transition:.15s}
.dropzone:hover,.dropzone.drag{border-color:var(--amber);background:rgba(245,185,66,.08)}
.drop-title{font-weight:700;color:var(--amber)}
.drop-sub{font-size:11px;color:var(--faint)}
.meta{font-size:11px;color:var(--faint);margin:10px 0 0;word-break:break-all}

/* conf badge */
.conf-badge{font-size:10.5px;padding:4px 9px;border-radius:2px;border:1px solid var(--line2);color:var(--muted)}
.conf-badge.good{color:var(--teal);border-color:var(--teal);background:rgba(67,212,196,.08)}
.conf-badge.warn{color:var(--amber);border-color:var(--amber-dim);background:rgba(245,185,66,.08)}
.conf-badge.bad{color:var(--red);border-color:var(--red);background:rgba(232,105,74,.08)}

/* rows / inputs */
.row{display:grid;grid-template-columns:84px 1fr 46px;align-items:center;gap:10px;margin-top:12px;font-size:12px}
.row>span{color:var(--muted)}
.row output{font-variant-numeric:tabular-nums;text-align:right;color:var(--amber);font-weight:700}
input[type=range]{-webkit-appearance:none;appearance:none;height:4px;background:var(--line2);border-radius:2px;outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;background:var(--amber);
  border:2px solid #1a1305;border-radius:2px;cursor:pointer;box-shadow:0 0 0 1px var(--amber-dim)}
input[type=range]::-moz-range-thumb{width:13px;height:13px;background:var(--amber);border:2px solid #1a1305;border-radius:2px;cursor:pointer}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.num-field,.select-field{display:flex;flex-direction:column;gap:5px;font-size:11px;color:var(--muted)}
.num-field input,.select-field select{background:var(--bg);border:1px solid var(--line2);color:var(--ink);
  font-family:var(--mono);padding:8px 9px;border-radius:3px;font-size:13px;width:100%}
.num-field input:focus,.select-field select:focus{border-color:var(--amber);outline:none}
.check{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);margin-top:12px;cursor:pointer}
.check input{accent-color:var(--amber);width:15px;height:15px}

/* segmented */
.segmented{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}
.segmented button{font-family:var(--mono);font-size:12px;padding:9px 4px;background:var(--bg);
  color:var(--muted);border:1px solid var(--line2);border-radius:3px;cursor:pointer;transition:.12s}
.segmented button:hover{border-color:var(--amber-dim);color:var(--ink)}
.segmented button.active{background:var(--amber);color:#1a1305;border-color:var(--amber);font-weight:700}

.select-field{margin-top:0}
.collapse .row{grid-template-columns:96px 1fr 46px}

/* actions */
.actions{display:flex;flex-direction:column;gap:9px;margin-top:4px}
.btn{font-family:var(--mono);font-weight:500;font-size:13px;padding:12px 14px;border-radius:3px;
  border:1px solid var(--line2);background:var(--panel2);color:var(--ink);cursor:pointer;transition:.12s}
.btn:hover:not(:disabled){border-color:var(--amber-dim);background:#2a2418}
.btn.block{width:100%}
.btn.primary{background:var(--amber);color:#1a1305;border-color:var(--amber);font-weight:700;font-family:var(--pixel);font-size:12px}
.btn.primary:hover:not(:disabled){background:#ffc857;box-shadow:0 0 18px rgba(245,185,66,.35)}
.btn.ghost{background:transparent;color:var(--muted)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.status{font-size:11.5px;color:var(--faint);margin:4px 2px 0;min-height:1.4em}
.status.error{color:var(--red)}

/* ---- stage ---- */
.stage{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:1180px){.stage{grid-template-columns:1fr}}
.preview,.report{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);
  border-radius:4px;padding:16px;box-shadow:var(--shadow)}
.report{grid-column:1/-1}
.preview-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:12px}
.preview-head h2{font-family:var(--pixel);font-size:12px;margin:0;letter-spacing:.02em}
.meta-inline{font-size:11px;color:var(--faint);margin:0;font-variant-numeric:tabular-nums}
.frame{position:relative;display:grid;place-items:center;min-height:300px;border:1px solid var(--line2);
  border-radius:3px;overflow:auto;padding:18px}
.checker:not(.no-checker){background-image:
  linear-gradient(45deg,#1b1813 25%,transparent 25%),linear-gradient(-45deg,#1b1813 25%,transparent 25%),
  linear-gradient(45deg,transparent 75%,#1b1813 75%),linear-gradient(-45deg,transparent 75%,#1b1813 75%);
  background-size:18px 18px;background-position:0 0,0 9px,9px -9px,-9px 0;background-color:#100f0c}
.no-checker{background:#100f0c}
.img-wrap{position:relative;line-height:0;max-width:100%}
#srcImg{max-width:100%;max-height:440px;image-rendering:pixelated;display:block}
.grid-overlay{position:absolute;top:0;left:0;pointer-events:none}
#resultCanvas{image-rendering:pixelated;display:block;background:transparent}
.empty{color:var(--faint);font-size:12.5px}

/* report */
.report h2{font-family:var(--pixel);font-size:12px;margin:0 0 14px;letter-spacing:.02em}
.report-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:560px){.report-grid{grid-template-columns:repeat(2,1fr)}}
.report-grid>div{background:var(--bg);border:1px solid var(--line2);border-radius:3px;padding:12px}
.report-grid span{display:block;font-size:10.5px;color:var(--faint);margin-bottom:6px;text-transform:uppercase;letter-spacing:.06em}
.report-grid strong{font-family:var(--pixel);font-size:18px;color:var(--amber);font-variant-numeric:tabular-nums}
.report-note{font-size:11.5px;color:var(--muted);margin:14px 0 0}