:root{
  --accent:#2ea043; --accent-2:#238636; --accent-soft:rgba(46,160,67,.14);
  --danger:#f85149; --warn:#d29922; --radius:14px; --radius-sm:10px;
  --shadow:0 8px 30px rgba(0,0,0,.35); --ring:0 0 0 3px var(--accent-soft);
}
[data-theme="dark"]{
  --bg:#0b0e13; --bg-grad:radial-gradient(1200px 600px at 80% -10%, #15213a 0%, transparent 60%),
                        radial-gradient(900px 500px at -10% 0%, #0f2417 0%, transparent 55%);
  --panel:#11161f; --panel-2:#171e2a; --elev:#1c2533; --border:#283041;
  --text:#e6edf3; --muted:#8b98a9; --canvas-bg:#070a0e;
}
[data-theme="light"]{
  --bg:#f4f6fb; --bg-grad:radial-gradient(1100px 560px at 85% -12%, #dfe9ff 0%, transparent 60%),
                        radial-gradient(820px 480px at -8% 0%, #d8f3e1 0%, transparent 55%);
  --panel:#ffffff; --panel-2:#f6f8fc; --elev:#ffffff; --border:#e2e7f0;
  --text:#10151d; --muted:#5c6675; --canvas-bg:#eef1f6; --shadow:0 8px 28px rgba(20,30,60,.12);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;min-height:100%}
body{background:var(--bg);background-image:var(--bg-grad);background-attachment:fixed;color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
header{position:sticky;top:0;z-index:30;backdrop-filter:saturate(140%) blur(10px);
  background:color-mix(in srgb,var(--bg) 78%,transparent);border-bottom:1px solid var(--border)}
.bar{max-width:1080px;margin:0 auto;padding:14px 18px;display:flex;align-items:center;gap:12px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.2px}
.logo .mark{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-size:16px;
  background:linear-gradient(135deg,var(--accent),#3fb950);box-shadow:0 4px 12px var(--accent-soft)}
.spacer{flex:1}
.icon-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:var(--panel-2);
  color:var(--text);cursor:pointer;display:grid;place-items:center;font-size:16px;transition:.15s}
.icon-btn:hover{border-color:var(--accent);transform:translateY(-1px)}
main{max-width:1080px;margin:0 auto;padding:20px 18px 60px;display:flex;flex-direction:column;gap:18px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;animation:rise .35s ease both}
.card .pad{padding:18px}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.hero{display:flex;flex-direction:column;align-items:center;text-align:center;padding:30px 20px 8px}
.hero h2{margin:0 0 6px;font-size:24px;font-weight:750;letter-spacing:-.3px}
.hero p{margin:0 0 4px;color:var(--muted);font-size:14.5px;max-width:560px;line-height:1.55}
.inputs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:20px 0 6px;width:100%;max-width:680px}
.inbtn{display:flex;flex-direction:column;align-items:center;gap:8px;padding:18px 10px;border-radius:var(--radius-sm);
  border:1px solid var(--border);background:var(--panel-2);color:var(--text);cursor:pointer;transition:.16s;font-weight:600;font-size:13.5px}
.inbtn .em{font-size:24px;transition:transform .16s}
.inbtn:hover{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-2px)}
.inbtn:hover .em{transform:scale(1.12)}
.inbtn:disabled{opacity:.4;cursor:not-allowed}
.dz{margin:14px 0 6px;width:100%;max-width:680px;border:2px dashed var(--border);border-radius:var(--radius);
  padding:22px;color:var(--muted);font-size:13.5px;transition:.18s;cursor:pointer}
.dz.drag{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}
.dz b{color:var(--text)}
.note{color:var(--muted);font-size:12.5px;margin-top:10px}
.toolrow{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 18px;border-bottom:1px solid var(--border)}
.toolrow .title{font-weight:650;font-size:14px}
.chip{font-size:12px;color:var(--muted);border:1px solid var(--border);border-radius:99px;padding:4px 10px;background:var(--panel-2)}
.ctrl{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px}
select,.switch{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:9px;padding:8px 10px;font-size:13px}
.switch{display:inline-flex;align-items:center;gap:7px;cursor:pointer;user-select:none}
.switch input{accent-color:var(--accent);width:15px;height:15px}
.stageScroll{max-height:60vh;overflow:auto;background:var(--canvas-bg);display:grid;place-items:center;padding:16px}
.holder{position:relative;line-height:0;touch-action:none}
.holder canvas{display:block;border-radius:8px}
.crop{position:absolute;border:2px solid var(--accent);box-shadow:0 0 0 9999px rgba(0,0,0,.5);cursor:move;border-radius:2px}
[data-theme="light"] .crop{box-shadow:0 0 0 9999px rgba(255,255,255,.55)}
.crop .dims{position:absolute;top:-26px;left:0;background:var(--accent);color:#fff;font-size:11px;font-weight:600;padding:2px 7px;border-radius:6px;white-space:nowrap}
.h{position:absolute;width:12px;height:12px;background:#fff;border:2px solid var(--accent);border-radius:3px}
.h.nw{left:-7px;top:-7px;cursor:nwse-resize}.h.ne{right:-7px;top:-7px;cursor:nesw-resize}
.h.sw{left:-7px;bottom:-7px;cursor:nesw-resize}.h.se{right:-7px;bottom:-7px;cursor:nwse-resize}
.h.n{left:50%;top:-7px;transform:translateX(-50%);cursor:ns-resize}
.h.s{left:50%;bottom:-7px;transform:translateX(-50%);cursor:ns-resize}
.h.w{left:-7px;top:50%;transform:translateY(-50%);cursor:ew-resize}
.h.e{right:-7px;top:50%;transform:translateY(-50%);cursor:ew-resize}
.actions{display:flex;gap:10px;flex-wrap:wrap;padding:14px 18px}
button.btn{appearance:none;border:1px solid var(--border);background:var(--panel-2);color:var(--text);
  padding:11px 16px;border-radius:11px;font-size:14px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:8px;transition:.15s}
button.btn:hover{border-color:var(--accent);transform:translateY(-1px)}
button.btn.primary{background:var(--accent-2);border-color:var(--accent-2);color:#fff}
button.btn.primary:hover{background:var(--accent)}
button.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.spin{width:15px;height:15px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:sp .7s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
.progress{height:5px;background:var(--panel-2);overflow:hidden}
.progress>div{height:100%;width:0;background:linear-gradient(90deg,var(--accent),#3fb950);transition:width .25s}
.statusbar{padding:10px 18px;font-size:13px;color:var(--muted);min-height:38px;display:flex;align-items:center;gap:8px}
.seg{display:inline-flex;border:1px solid var(--border);border-radius:10px;overflow:hidden}
.seg button{border:none;background:var(--panel-2);color:var(--text);padding:8px 16px;font-size:13px;font-weight:600;cursor:pointer}
.seg button.active{background:var(--accent-2);color:#fff}
textarea{width:100%;min-height:220px;background:var(--canvas-bg);color:var(--text);border:1px solid var(--border);
  border-radius:11px;padding:14px;font-size:14px;line-height:1.6;resize:vertical;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;transition:.2s}
textarea:focus{outline:none;box-shadow:var(--ring);border-color:var(--accent)}
.skeleton{position:relative;overflow:hidden;background:var(--canvas-bg);border:1px solid var(--border);border-radius:11px;min-height:220px}
.skeleton::after{content:"";position:absolute;inset:0;transform:translateX(-100%);
  background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--text) 8%,transparent),transparent);animation:sk 1.2s infinite}
@keyframes sk{100%{transform:translateX(100%)}}
.sk-line{height:14px;border-radius:6px;background:color-mix(in srgb,var(--text) 8%,transparent);margin:16px}
.meta{color:var(--muted);font-size:12.5px;margin-top:8px}
.footer{text-align:center;color:var(--muted);font-size:12.5px;padding:8px 0 0}
.footer a{color:var(--accent);text-decoration:none}
#toasts{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:60;display:flex;flex-direction:column;gap:10px;align-items:center}
.toast{background:var(--elev);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;
  padding:11px 16px;font-size:13.5px;display:flex;align-items:center;gap:9px;animation:toastin .25s ease both;max-width:90vw}
.toast.ok{border-left:3px solid var(--accent)} .toast.err{border-left:3px solid var(--danger)} .toast.warn{border-left:3px solid var(--warn)}
@keyframes toastin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media (max-width:620px){
  .inputs{grid-template-columns:repeat(2,1fr)}
  .hero h2{font-size:21px}
  .actions{position:sticky;bottom:0;background:var(--panel);border-top:1px solid var(--border)}
  button.btn{flex:1;justify-content:center;padding:13px 12px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}