:root{
  --bg:#0a0a0f;
  --bg-1:#0d0d15;
  --bg-2:#111120;
  --panel:#0f0f1a;
  --panel-2:#13131f;
  --line:#1e1e30;
  --line-2:#282842;
  --ink:#e8e8f0;
  --ink-dim:#8b8ba7;
  --ink-faint:#5a5a76;
  --violet:#7c1fff;
  --magenta:#ff2d78;
  --cyan:#22d3ee;
  --amber:#f5b642;
  --green:#31e5a0;
  --red:#ff4d6d;
  --accent-grad:linear-gradient(100deg,#7c1fff,#ff2d78);
  --mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --disp:'Chakra Petch',var(--mono);
  --glow-violet:0 0 0 1px rgba(124,31,255,.4),0 0 22px -4px rgba(124,31,255,.55);
  --glow-magenta:0 0 0 1px rgba(255,45,120,.4),0 0 22px -4px rgba(255,45,120,.55);
}

*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{height:100%}
body{
  margin:0;
  background:
    radial-gradient(1100px 600px at 15% -10%,rgba(124,31,255,.10),transparent 60%),
    radial-gradient(1000px 620px at 100% 0%,rgba(255,45,120,.09),transparent 55%),
    var(--bg);
  background-attachment:fixed;
  color:var(--ink);
  font-family:var(--disp);
  font-size:14px;
  line-height:1.4;
  display:flex;
  flex-direction:column;
  height:100vh;
  overflow-x:hidden;
}

/* scanline / grain */
.scanlines{
  position:fixed;inset:0;pointer-events:none;z-index:9;
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.014) 0 1px,transparent 1px 3px);
  mix-blend-mode:overlay;opacity:.5;
}

::selection{background:rgba(255,45,120,.35);color:#fff}
a{color:var(--magenta);text-decoration:none}
a:hover{color:var(--violet)}

/* ============ TOP BAR ============ */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 22px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,17,32,.9),rgba(10,10,15,.7));
  backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:8;
}
.brand{display:flex;align-items:center;gap:14px}
.logo{
  width:42px;height:42px;display:grid;place-items:center;
  border-radius:11px;
  background:var(--accent-grad);
  box-shadow:0 0 24px -4px rgba(124,31,255,.7);
  position:relative;
}
.logo::after{content:"";position:absolute;inset:1.5px;border-radius:9px;background:var(--bg-1)}
.logo-glyph{position:relative;font-family:var(--disp);font-weight:700;font-size:24px;
  background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.wordmark{
  margin:0;font-family:var(--disp);font-weight:700;letter-spacing:3px;font-size:22px;line-height:1;
}
.wordmark .xi{
  background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.tagline{display:block;margin-top:3px;font-size:9.5px;letter-spacing:3.5px;color:var(--ink-faint);font-weight:500}

.topbar-meta{display:flex;align-items:center;gap:18px}
.punchline{
  font-family:var(--mono);font-size:11.5px;color:var(--ink-dim);
  max-width:340px;text-align:right;min-height:15px;
  transition:opacity .4s ease;
}
.punchline b{color:var(--magenta);font-weight:500}
.build-status{
  display:flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:1px;
  padding:7px 12px;border:1px solid var(--line-2);border-radius:8px;
  background:var(--panel);
}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:pulse 2.4s ease-in-out infinite}
.status-label{color:var(--green);font-weight:700}
.build-status[data-state="busy"] .status-dot{background:var(--amber);box-shadow:0 0 10px var(--amber)}
.build-status[data-state="busy"] .status-label{color:var(--amber)}
.build-status[data-state="error"] .status-dot{background:var(--red);box-shadow:0 0 10px var(--red)}
.build-status[data-state="error"] .status-label{color:var(--red)}
.build-ver{color:var(--ink-faint)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ============ WORKSPACE ============ */
.workspace{
  flex:1;display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr) minmax(0,1.15fr);
  gap:14px;padding:14px 18px;min-height:0;
}
.zone-input .editor{min-height:180px}
.zone-output .editor{min-height:180px}
.zone{
  display:flex;flex-direction:column;min-height:0;min-width:0;
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
  box-shadow:0 20px 50px -30px #000;
}
.zone-head{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.012);
}
.zone-title{font-size:11px;letter-spacing:2.5px;font-weight:600;color:var(--ink-dim);display:flex;align-items:center;gap:9px}
.zone-idx{
  font-family:var(--mono);font-size:9.5px;color:#fff;background:var(--accent-grad);
  padding:3px 6px;border-radius:5px;letter-spacing:1px;box-shadow:0 0 14px -4px var(--violet);
}
.zone-tools{display:flex;gap:7px;flex-wrap:wrap}

/* ---- Buttons ---- */
.btn{
  font-family:var(--mono);font-size:10.5px;letter-spacing:1.2px;font-weight:500;
  padding:8px 13px;border-radius:8px;border:1px solid var(--line-2);
  background:var(--panel);color:var(--ink-dim);cursor:pointer;
  transition:all .16s ease;user-select:none;white-space:nowrap;
}
.btn:hover:not(:disabled){color:var(--ink);border-color:var(--violet);box-shadow:var(--glow-violet)}
.btn:active:not(:disabled){transform:translateY(1px)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn:focus-visible{outline:2px solid var(--magenta);outline-offset:2px}
.btn-xs{padding:5px 9px;font-size:9.5px}
.btn-file{display:inline-flex;align-items:center}
.btn-primary{
  background:rgba(124,31,255,.12);border-color:var(--violet);color:#fff;
}
.btn-primary:hover:not(:disabled){box-shadow:var(--glow-violet);background:rgba(124,31,255,.2)}
.btn-max{
  position:relative;overflow:hidden;
  background:var(--accent-grad);border:none;color:#fff;font-weight:700;font-size:12px;letter-spacing:2px;
  padding:14px 16px;box-shadow:0 0 26px -6px rgba(255,45,120,.7);
}
.btn-max .max-lock{margin-right:4px}
.btn-max::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-20deg);animation:sheen 3.4s ease-in-out infinite;
}
@keyframes sheen{0%,55%{left:-60%}80%,100%{left:130%}}
.btn-max:hover{box-shadow:0 0 40px -4px rgba(255,45,120,.9);transform:translateY(-1px)}

/* ---- Stats ---- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:12px 14px 4px}
.stat-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:9px;
  padding:9px 10px;display:flex;flex-direction:column;gap:3px;min-width:0;
}
.stat-label{font-family:var(--mono);font-size:8.5px;letter-spacing:1.5px;color:var(--ink-faint)}
.stat-val{font-family:var(--mono);font-size:19px;font-weight:700;color:var(--ink);line-height:1;transition:color .3s}
.stat-card.bump .stat-val{color:var(--magenta)}

/* ---- Editor ---- */
.editor{
  position:relative;flex:1;display:flex;min-height:0;margin:12px 14px 0;
  border:1px solid var(--line);border-radius:10px;overflow:hidden;
  background:#08080d;
}
.zone-input .editor{margin-bottom:0}
.gutter{
  flex:0 0 auto;padding:12px 10px 12px 12px;text-align:right;
  font-family:var(--mono);font-size:12.5px;line-height:1.55;color:var(--ink-faint);
  background:rgba(255,255,255,.015);border-right:1px solid var(--line);
  user-select:none;overflow:hidden;white-space:pre;
}
.gutter span{display:block}
.editor-body{position:relative;flex:1;min-width:0;overflow:auto}
.highlight,.code-area{
  margin:0;padding:12px 14px;
  font-family:var(--mono);font-size:12.5px;line-height:1.55;
  white-space:pre;tab-size:2;
  min-width:100%;width:max-content;
}
.highlight{color:var(--ink);pointer-events:none}
.highlight code{font:inherit}
.code-area{
  position:absolute;inset:0;width:100%;height:100%;
  background:transparent;border:none;resize:none;color:transparent;caret-color:var(--magenta);
  outline:none;overflow:hidden;white-space:pre;
}
.code-area::placeholder{color:var(--ink-faint)}
.editor[data-empty="true"] .code-area{color:var(--ink-faint)}

/* syntax colors */
.tok-kw{color:#c792ea}
.tok-fn{color:#82aaff}
.tok-str{color:#c3e88d}
.tok-num{color:#f78c6c}
.tok-com{color:#546080;font-style:italic}
.tok-op{color:#89ddff}
.tok-global{color:#ffcb6b}
.tok-punc{color:#8b8ba7}

/* drop overlay */
.drop-overlay{
  position:absolute;inset:0;display:none;place-items:center;z-index:5;
  background:rgba(124,31,255,.14);border:2px dashed var(--violet);border-radius:10px;
  font-family:var(--mono);letter-spacing:3px;color:#fff;font-size:14px;
  backdrop-filter:blur(2px);
}
.editor.dragover .drop-overlay{display:grid}

.validate-line{
  min-height:20px;padding:7px 14px 10px;font-family:var(--mono);font-size:10.5px;
  color:var(--green);letter-spacing:.5px;
}
.validate-line.has-error{color:var(--red)}

/* ---- Options ---- */
.zone-options .opt-scroll{flex:1;overflow:auto;padding:14px;display:flex;flex-direction:column;gap:16px}
.opt-group{display:flex;flex-direction:column;gap:8px}
.opt-group-title{font-family:var(--mono);font-size:9px;letter-spacing:2.5px;color:var(--ink-faint);margin-bottom:2px}
.toggle{
  display:flex;align-items:flex-start;gap:11px;cursor:pointer;
  padding:9px 11px;border-radius:9px;border:1px solid var(--line);background:var(--bg-1);
  transition:border-color .15s,background .15s;
}
.toggle:hover{border-color:var(--line-2);background:var(--panel-2)}
.toggle input{position:absolute;opacity:0;width:0;height:0}
.tg{
  flex:0 0 auto;width:34px;height:19px;border-radius:20px;margin-top:1px;
  background:#20203a;border:1px solid var(--line-2);position:relative;transition:all .18s ease;
}
.tg::after{content:"";position:absolute;top:1.5px;left:1.5px;width:14px;height:14px;border-radius:50%;
  background:#6a6a8c;transition:all .18s ease}
.toggle input:checked + .tg{background:var(--accent-grad);border-color:transparent;box-shadow:0 0 14px -3px var(--magenta)}
.toggle input:checked + .tg::after{left:16px;background:#fff}
.toggle input:focus-visible + .tg{outline:2px solid var(--magenta);outline-offset:2px}
.tg-text{display:flex;flex-direction:column;gap:2px;min-width:0}
.tg-text b{font-size:12.5px;font-weight:600;color:var(--ink)}
.tg-text i{font-style:normal;font-family:var(--mono);font-size:9.5px;color:var(--ink-faint);letter-spacing:.3px}
.live-tag{font-family:var(--mono);font-size:8px;letter-spacing:1px;color:var(--cyan);
  border:1px solid rgba(34,211,238,.4);border-radius:4px;padding:1px 4px;vertical-align:middle;margin-left:4px}

.field{display:flex;flex-direction:column;gap:6px}
.field-label{font-size:12px;color:var(--ink-dim)}
.select-wrap{position:relative}
.select-wrap::after{content:"▾";position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--ink-faint);pointer-events:none;font-size:11px}
select{
  width:100%;appearance:none;font-family:var(--mono);font-size:12px;
  padding:10px 30px 10px 12px;border-radius:8px;border:1px solid var(--line-2);
  background:var(--bg-1);color:var(--ink);cursor:pointer;transition:all .15s;
}
select:hover{border-color:var(--violet)}
select:focus-visible{outline:2px solid var(--magenta);outline-offset:2px}

.auto-group{border:1px dashed var(--line-2);border-radius:10px;padding:11px;background:rgba(124,31,255,.04);opacity:.5;transition:opacity .25s,border-color .25s}
.auto-group[data-active="true"]{opacity:1;border-color:var(--violet);box-shadow:inset 0 0 22px -14px var(--violet)}
.auto-badge{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:10.5px;color:var(--ink-dim);padding:3px 0}
.auto-check{width:15px;height:15px;border-radius:4px;display:grid;place-items:center;font-size:9px;background:var(--line);color:var(--ink-faint)}
.auto-group[data-active="true"] .auto-check{background:var(--accent-grad);color:#fff}

.actions{display:flex;flex-direction:column;gap:9px;padding:12px 14px;border-top:1px solid var(--line);background:rgba(0,0,0,.2)}

/* ---- Mode switch (Simple / Advanced) ---- */
.mode-switch{display:flex;gap:3px;padding:3px;background:var(--bg-1);border:1px solid var(--line-2);border-radius:9px}
.mode-btn{
  font-family:var(--mono);font-size:9.5px;letter-spacing:1.5px;font-weight:600;
  padding:6px 11px;border-radius:6px;border:none;background:transparent;color:var(--ink-faint);cursor:pointer;transition:all .15s;
}
.mode-btn:hover{color:var(--ink-dim)}
.mode-btn[aria-selected="true"]{background:var(--accent-grad);color:#fff;box-shadow:0 0 14px -4px var(--magenta)}
.mode-btn:focus-visible{outline:2px solid var(--magenta);outline-offset:2px}

/* ---- Simple mode: preset cards ---- */
.simple-panel{flex:1;overflow:auto;padding:14px;display:flex;flex-direction:column;gap:11px}
.simple-intro{margin:0 0 2px;font-size:12.5px;color:var(--ink-dim);line-height:1.5;text-wrap:pretty}
.simple-intro b{color:var(--magenta);font-weight:600}
.preset{
  text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:8px;
  padding:14px;border-radius:12px;border:1px solid var(--line);background:var(--bg-1);
  transition:border-color .16s,background .16s,transform .12s,box-shadow .16s;
}
.preset:hover{border-color:var(--line-2);background:var(--panel-2);transform:translateY(-1px)}
.preset:focus-visible{outline:2px solid var(--magenta);outline-offset:2px}
.preset.is-selected{border-color:transparent;background:rgba(124,31,255,.08);box-shadow:var(--glow-violet)}
.preset-top{display:flex;align-items:center;gap:10px}
.preset-icon{font-size:15px;color:var(--violet);line-height:1}
.preset.is-selected .preset-icon{color:var(--magenta)}
.preset-name{font-family:var(--disp);font-weight:700;font-size:16px;letter-spacing:.5px;color:var(--ink)}
.preset-meta{margin-left:auto;font-family:var(--mono);font-size:8.5px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-faint);border:1px solid var(--line-2);border-radius:5px;padding:2px 6px}
.preset-meta.reco{color:var(--green);border-color:rgba(49,229,160,.4)}
.preset-meta.max{color:var(--magenta);border-color:rgba(255,45,120,.4)}
.preset-desc{font-size:12px;line-height:1.5;color:var(--ink-dim);text-wrap:pretty}
.preset-desc i{color:var(--ink);font-style:italic}
.preset-tags{display:flex;flex-wrap:wrap;gap:5px}
.preset-tags span{font-family:var(--mono);font-size:9px;letter-spacing:.5px;color:var(--ink-faint);background:var(--panel-2);border:1px solid var(--line);border-radius:5px;padding:3px 7px}
.preset.is-selected .preset-tags span{color:var(--ink-dim);border-color:var(--line-2)}
.simple-note{margin-top:auto;font-family:var(--mono);font-size:10px;line-height:1.6;color:var(--ink-faint);padding:10px;border:1px dashed var(--line-2);border-radius:9px;text-wrap:pretty}

/* ---- Output ---- */
.out-readout{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding:9px 14px;border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:10.5px;color:var(--ink-dim);letter-spacing:.5px;
}
.ro-metric b{color:var(--ink);font-weight:700}
.ro-arrow{color:var(--violet)}
.ro-ratio{color:var(--cyan)}
.ro-badge{font-size:9px;letter-spacing:1.5px;font-weight:700;padding:3px 8px;border-radius:5px}
.ro-idle{background:var(--line);color:var(--ink-faint)}
.ro-ok{background:rgba(49,229,160,.14);color:var(--green);border:1px solid rgba(49,229,160,.4)}
.ro-err{background:rgba(255,77,109,.14);color:var(--red);border:1px solid rgba(255,77,109,.4)}
.editor-output .highlight{color:var(--ink)}
.out-placeholder{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  text-align:center;color:var(--ink-faint);pointer-events:none;
}
.op-lock{font-size:34px;opacity:.5}
.op-text{font-size:13px;color:var(--ink-dim)}
.op-sub{font-family:var(--mono);font-size:10px}
.editor-output.has-output .out-placeholder{display:none}

/* scan overlay */
.scan-overlay{position:absolute;inset:0;display:none;z-index:6;background:rgba(8,8,13,.72);backdrop-filter:blur(2px);overflow:hidden}
.editor-output.scanning .scan-overlay{display:block}
.scan-line{position:absolute;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--magenta),var(--violet),transparent);box-shadow:0 0 18px var(--magenta);animation:scan 1.25s ease-in-out infinite}
@keyframes scan{0%{top:-2%}100%{top:102%}}
.scan-label{position:absolute;bottom:16px;left:0;right:0;text-align:center;font-family:var(--mono);font-size:11px;letter-spacing:4px;color:var(--magenta);animation:pulse 1.2s ease-in-out infinite}

/* ============ TERMINAL ============ */
.terminal{margin:0 18px 16px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#07070c;box-shadow:0 20px 50px -30px #000}
.term-head{display:flex;align-items:center;gap:12px;padding:8px 14px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.015)}
.term-title{font-family:var(--mono);font-size:10px;letter-spacing:2px;color:var(--ink-dim)}
.term-dots{display:flex;gap:5px;margin-left:auto}
.term-dots i{width:9px;height:9px;border-radius:50%;background:var(--line-2);display:block}
.term-dots i:nth-child(1){background:#3a2444}.term-dots i:nth-child(2){background:#442436}.term-dots i:nth-child(3){background:#243a44}
.term-body{
  height:150px;overflow:auto;padding:10px 14px;
  font-family:var(--mono);font-size:11.5px;line-height:1.7;
}
.term-line{display:flex;gap:10px;white-space:pre-wrap;word-break:break-word;animation:lineIn .25s ease}
.term-time{color:var(--ink-faint);flex:0 0 auto}
.term-tag{flex:0 0 auto;font-weight:700}
.term-msg{color:var(--ink)}
.tl-system .term-tag{color:var(--cyan)}
.tl-success .term-tag{color:var(--green)}.tl-success .term-msg{color:#bfeed6}
.tl-warn .term-tag{color:var(--amber)}.tl-warn .term-msg{color:#f3e0b8}
.tl-error .term-tag{color:var(--red)}.tl-error .term-msg{color:#f6c2cc}
@keyframes lineIn{from{opacity:0;transform:translateX(-6px)}to{opacity:1;transform:none}}

/* scrollbars */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:10px;border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:var(--violet);background-clip:content-box}

/* ============ RESPONSIVE ============ */
@media(max-width:1080px){
  body{height:auto;min-height:100vh;overflow-y:auto}
  .topbar{position:static}
  .workspace{grid-template-columns:1fr;gap:12px}
  .zone{min-height:auto}
  .zone-input .editor{min-height:300px}
  .zone-output .editor{min-height:300px}
  .zone-options .opt-scroll{overflow:visible}
  .term-body{height:150px}
  .punchline{display:none}
}
@media(max-width:560px){
  .topbar{padding:10px 14px}
  .workspace{padding:12px}
  .terminal{margin:0 12px 12px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .tagline{display:none}
  .build-ver{display:none}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .scan-line{top:50%}
}