/* ============== GoAI Studio (dashboard) — light/cream app ============== */
:root{
  --bg:#efece3;
  --rail:#ebe9e0;
  --card:#ffffff;
  --card-2:#faf9f3;
  --ink:#1b1d22;
  --ink-2:#44443c;
  --muted:#8a8779;
  --line:#e7e5d9;
  --line-2:#efedE3;
  --lime:#b3e23f;
  --lime-deep:#7fa81c;
  --good:#3fae6b;--warn:#d8941f;--bad:#df5a52;
  --r:12px;--r-lg:16px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --serif:'Instrument Serif',Georgia,serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body.app{font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;line-height:1.55}
b{font-weight:700}
.shell{display:grid;grid-template-columns:64px 1fr;height:100vh;overflow:hidden}

/* ===== rail ===== */
.rail{background:var(--rail);border-right:1px solid #e0ded2;display:flex;flex-direction:column;align-items:center;padding:1.1rem 0;gap:1.4rem}
.rail__brand{font-size:1.5rem;color:var(--lime-deep);text-decoration:none;line-height:1}
.rail__nav{display:flex;flex-direction:column;gap:.4rem;flex:1}
.ri{width:40px;height:40px;display:grid;place-items:center;border:none;background:transparent;color:#9a978a;border-radius:10px;cursor:pointer;transition:.18s}
.ri svg{width:19px;height:19px}
.ri:hover{background:#fff;color:var(--ink)}
.ri.is-on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.rail__avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;font-weight:700;font-size:.85rem}

/* ===== work / topbar ===== */
.work{display:flex;flex-direction:column;min-width:0;height:100vh}
.topbar{display:flex;align-items:center;gap:1.5rem;padding:.85rem 1.4rem;border-bottom:1px solid var(--line);background:var(--card-2);flex:none}
.topbar__brand{display:flex;align-items:center;gap:.6rem;min-width:0}
.topbar__brand b{font-size:1.05rem}
.topbar__doc{font-size:.9rem;color:var(--muted);font-weight:500;outline:none;padding:.15rem .4rem;border-radius:6px;max-width:34vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar__doc:focus{background:#fff;color:var(--ink);box-shadow:0 0 0 2px var(--lime)}
.topbar__tabs{display:flex;gap:.3rem;background:#efece2;border:1px solid var(--line);border-radius:999px;padding:.25rem;margin:0 auto}
.tt{border:none;background:transparent;font-family:inherit;font-weight:600;font-size:.86rem;color:var(--muted);padding:.42rem 1.05rem;border-radius:999px;cursor:pointer;transition:.2s}
.tt.is-on{background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.tt:hover:not(.is-on){color:var(--ink-2)}
.topbar__right{display:flex;align-items:center;gap:.7rem}
.meta{font-size:.8rem;color:var(--muted)}.meta b{color:var(--ink-2)}
.ghost-btn{font-family:inherit;font-size:.82rem;font-weight:600;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:8px;padding:.42rem .8rem;cursor:pointer;text-decoration:none;transition:.18s;white-space:nowrap}
.ghost-btn:hover{border-color:#cfcdbf}

/* ===== views ===== */
.views{flex:1;overflow:auto;padding:1.4rem}
.view{display:none;max-width:1180px;margin:0 auto}
.view.is-active{display:block;animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}}

/* ===== buttons / controls (shared) ===== */
.btn{font-family:inherit;font-weight:600;border-radius:9px;cursor:pointer;border:1px solid transparent;transition:.18s;display:inline-flex;align-items:center;gap:.4rem}
.btn.sm{font-size:.84rem;padding:.5rem .9rem}
.btn.solid{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.solid:hover{background:#000}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:#cfcdbf}
.btn.is-loading{opacity:.7;cursor:progress}
.seg{display:inline-flex;background:#efece2;border:1px solid var(--line);border-radius:999px;padding:.2rem}
.seg button{border:none;background:transparent;font-family:inherit;font-weight:600;font-size:.8rem;color:var(--muted);padding:.36rem .8rem;border-radius:999px;cursor:pointer;transition:.18s}
.seg button.is-on{background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.switch{display:inline-flex;align-items:center;gap:.5rem;cursor:pointer;font-size:.82rem;font-weight:500;color:var(--ink-2);user-select:none}
.switch input{position:absolute;opacity:0;width:0;height:0}
.switch__t{position:relative;width:36px;height:21px;border-radius:999px;background:#e2e0d4;border:1px solid var(--line);transition:.2s;flex:none}
.switch__d{position:absolute;top:2px;left:2px;width:15px;height:15px;border-radius:50%;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.2);transition:.2s}
.switch input:checked + .switch__t{background:var(--lime);border-color:transparent}
.switch input:checked + .switch__t .switch__d{transform:translateX(15px)}

/* ===== editor view ===== */
.grid2{display:grid;grid-template-columns:232px 1fr;gap:1.1rem;align-items:start}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.05rem}
.panel__h{font-size:.78rem;font-weight:700;color:var(--ink);margin-bottom:.6rem}
.ai .panel__h:not(:first-child){margin-top:1.1rem}

/* arc gauge */
.ai__gauge{position:relative;width:128px;height:88px;margin:.2rem auto .3rem;overflow:hidden}
.arc{position:absolute;inset:0}
.arc svg{position:absolute;left:5px;top:5px;width:118px;height:118px;transform:rotate(135deg)}
.arc circle{fill:none;stroke-width:9;stroke-linecap:round}
.arc__track{stroke:#e7e5d8}
.arc__fill{stroke:var(--lime);transition:stroke-dasharray 1s cubic-bezier(.16,1,.3,1),stroke .6s}
.ai__num{position:absolute;left:0;right:0;top:28px;text-align:center}
.ai__num b{font-size:27px;font-weight:800;letter-spacing:-.02em}
.ai__num span{display:block;font-size:11px;color:var(--muted);font-weight:600;margin-top:1px}
.ai__num span.is-bad{color:var(--bad)}.ai__num span.is-warn{color:var(--warn)}.ai__num span.is-good{color:var(--good)}
.ai__note{font-size:11.5px;color:var(--muted);text-align:center;line-height:1.45;margin-bottom:.2rem}
.ai__seg{display:flex;gap:4px;margin:.5rem 0}
.ai__seg i{height:6px;flex:1;border-radius:3px;background:#e7e5d8;transition:background .4s}
.ai__seg i.on{background:var(--lime)}
.ai__break{display:flex;flex-direction:column;gap:.5rem}
.brow{display:grid;grid-template-columns:1fr auto;gap:.4rem;font-size:11.5px;color:var(--ink-2)}
.brow b{font-weight:700;color:var(--ink)}
.ai__tip{background:var(--card-2);border:1px solid var(--line);border-radius:10px;padding:.7rem .8rem;margin-top:1.1rem}
.ai__tip b{display:block;font-size:11px;font-weight:700;margin-bottom:.25rem}
.ai__tip p{font-size:11.5px;color:var(--muted);line-height:1.5}

.editor{display:flex;flex-direction:column;gap:.9rem;min-width:0}
.doc{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:1rem 1.1rem}
.doc__h{display:flex;align-items:center;font-size:12px;color:var(--muted);font-weight:600;margin-bottom:.7rem}
.doc__h .w{margin-left:auto;font-weight:500}.doc__h .w b{color:var(--ink-2)}
.doc__h .dots{margin-left:.7rem;letter-spacing:1px;cursor:default}
.doc__h .rw-stats{margin-left:auto;font-weight:500;display:flex;gap:.6rem}
.doc__body{font-size:14.5px;line-height:1.7;color:#2a2920;outline:none;min-height:150px}
.doc__body:empty::before{content:attr(data-placeholder);color:#aaa79a}
.rewrite .doc__body{min-height:90px}
.doc__body mark{padding:.05em .14em;border-radius:3px;color:inherit}
.doc__body mark.add{background:rgba(168,232,63,.34)}
.mk-ai{background:#f6cfcf}.mk-pred{background:#f6ee9c}.mk-pass{background:#cfe0f6}.mk-over{background:#ddd2f6}
.legend{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:.7rem;font-size:11px;color:var(--muted)}
.legend span{display:inline-flex;align-items:center;gap:.32rem}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block}

.toolbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.toolbar__l{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.toolbar__r{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}

.rewrite__actions{display:flex;gap:.5rem;margin-top:.8rem;flex-wrap:wrap}
.disclaimer{margin-top:1.2rem;font-size:.82rem;color:var(--muted);background:var(--card-2);border:1px solid var(--line);border-radius:var(--r);padding:.85rem 1rem;line-height:1.6}
.disclaimer b{color:var(--ink-2)}

/* ===== analysis report ===== */
.report__empty{text-align:center;padding:4rem 1rem;color:var(--muted)}
.report__ico{font-size:2.4rem;opacity:.4;margin-bottom:.6rem}
.report__empty h3{color:var(--ink);font-size:1.3rem;margin-bottom:.4rem}
.report__empty p{max-width:30rem;margin:0 auto 1.3rem;font-size:.95rem}
.report__top{display:grid;grid-template-columns:300px 1fr;gap:1.1rem;align-items:start;margin-bottom:1.1rem}
.report__score{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.4rem;display:flex;flex-direction:column;align-items:center;gap:.8rem}
.gauge-lg{position:relative;width:200px;height:140px;overflow:hidden}
.arc--lg svg{left:10px;top:10px;width:180px;height:180px}
.gauge-lg__num{position:absolute;left:0;right:0;top:44px;text-align:center}
.gauge-lg__num b{font-size:46px;font-weight:800;letter-spacing:-.03em}
.gauge-lg__num span{display:block;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-top:2px}
.gauge-lg__num span.is-bad{color:var(--bad)}.gauge-lg__num span.is-warn{color:var(--warn)}.gauge-lg__num span.is-good{color:var(--good)}
.report__caption{font-size:.86rem;color:var(--ink-2);text-align:center;line-height:1.5}
.report__signals{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.2rem 1.3rem}
.sigrow{display:grid;grid-template-columns:150px 1fr 42px;align-items:center;gap:.7rem;margin-bottom:.85rem}
.sigrow:last-child{margin-bottom:0}
.sigrow .nm{font-size:.85rem;font-weight:600;color:var(--ink-2)}
.sigrow .br{height:9px;background:#efece2;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.sigrow .br i{display:block;height:100%;border-radius:6px;transition:width .9s cubic-bezier(.16,1,.3,1)}
.sigrow .vl{font-size:.82rem;font-weight:700;text-align:right}
.report__doc{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.2rem 1.3rem}
.heat{font-size:15px;line-height:1.95;color:#2a2920}
.heat .s{padding:.08em .12em;border-radius:4px}
.s--hi{background:rgba(223,90,82,.2)}.s--mid{background:rgba(216,148,31,.22)}.s--lo{background:rgba(63,174,107,.16)}
.heat__legend{margin-top:1rem}

/* ===== history ===== */
.hist{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.4rem 1.5rem;max-width:760px;margin:0 auto}
.hist__head{display:flex;align-items:center;justify-content:space-between}
.hist__head h3{font-size:1.2rem}
.hist__note{font-size:.85rem;color:var(--muted);margin:.4rem 0 1.2rem}
.hitem{display:flex;align-items:center;gap:.9rem;padding:.85rem 0;border-top:1px solid var(--line)}
.hitem__badge{width:38px;height:38px;border-radius:9px;display:grid;place-items:center;font-weight:800;font-size:.82rem;flex:none}
.hitem__badge.det{background:#f6e9c8;color:#7a5b12}
.hitem__badge.hum{background:rgba(168,232,63,.3);color:#5c7a16}
.hitem__main{flex:1;min-width:0}
.hitem__t{font-size:.9rem;font-weight:600}
.hitem__s{font-size:.8rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hitem__time{font-size:.76rem;color:var(--muted);flex:none}
.hist__empty{color:var(--muted);font-size:.9rem;padding:1.5rem 0;text-align:center}

/* ===== responsive ===== */
@media (max-width:860px){
  .grid2{grid-template-columns:1fr}
  .report__top{grid-template-columns:1fr}
  .topbar__doc{display:none}
  .topbar__tabs{margin:0}
}
@media (max-width:560px){
  .shell{grid-template-columns:52px 1fr}
  .views{padding:1rem .9rem}
  .topbar{gap:.8rem;padding:.7rem .9rem}
  .topbar__right .ghost-btn{display:none}
  .topbar__right .meta{display:none}
  .sigrow{grid-template-columns:110px 1fr 38px}
}