/* ===================== TrueTone application shell ===================== */
/* The [hidden] attribute must beat any display rule below it. */
[hidden]{display:none!important}
body.app{background:var(--paper);height:100vh;overflow:hidden}
.shell{display:grid;grid-template-columns:264px 1fr;height:100vh}

/* ------------------------------------------------------------- sidebar */
.side{background:var(--paper-2);border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden}
.side-head{padding:16px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:9px}
.side-nav{padding:12px;display:grid;gap:2px}
.side-nav button{display:flex;align-items:center;gap:10px;width:100%;padding:9px 12px;border:none;background:none;
  border-radius:8px;font:inherit;font-size:.92rem;font-weight:500;color:var(--ink-2);cursor:pointer;text-align:left}
.side-nav button:hover{background:#00000006}
.side-nav button.on{background:var(--brand-soft);color:var(--brand-2);font-weight:600}
.side-nav button svg{flex:none;opacity:.75}
.side-list{flex:1;overflow-y:auto;padding:0 12px 12px;border-top:1px solid var(--line);margin-top:8px;padding-top:12px}
.side-list h5{font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-4);margin:0 0 8px;padding:0 4px}
.doc-item{padding:8px 10px;border-radius:7px;cursor:pointer;font-size:.87rem;color:var(--ink-2);display:flex;justify-content:space-between;gap:8px;align-items:center}
.doc-item:hover{background:#00000006}
.doc-item.on{background:var(--brand-soft);color:var(--brand-2)}
.doc-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.doc-item b{font-size:.74rem;font-weight:700;flex:none;opacity:.7}
.side-foot{border-top:1px solid var(--line);padding:12px 16px;font-size:.82rem}
.meter{margin-bottom:9px}
.meter-top{display:flex;justify-content:space-between;color:var(--ink-3);font-size:.76rem;margin-bottom:3px}
.meter-bar{height:5px;background:var(--line);border-radius:3px;overflow:hidden}
.meter-bar i{display:block;height:100%;background:var(--brand);border-radius:3px}
.meter-bar i.hot{background:var(--warn)}
.meter-bar i.full{background:var(--bad)}

/* ---------------------------------------------------------------- main */
.main{display:flex;flex-direction:column;overflow:hidden;min-width:0}
.topbar{height:56px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:0 20px;background:var(--paper-2);flex:none}
.topbar input.title{border:none;background:none;font:inherit;font-size:1rem;font-weight:600;color:var(--ink);flex:1;min-width:0;padding:6px 8px;border-radius:6px}
.topbar input.title:hover{background:#00000006}
.topbar input.title:focus{outline:2px solid var(--brand);background:var(--paper)}
.panes{flex:1;display:grid;grid-template-columns:1fr 400px;overflow:hidden;min-height:0}
.pane{overflow-y:auto;min-width:0}
.pane-left{padding:24px 28px}
.pane-right{border-left:1px solid var(--line);background:var(--paper-2);padding:20px}
#editor{width:100%;min-height:calc(100vh - 210px);border:1px solid var(--line);border-radius:12px;padding:22px 24px;
  font-family:var(--serif);font-size:1.02rem;line-height:1.78;color:var(--ink);background:var(--paper-2);resize:none}
#editor:focus{outline:2px solid var(--brand);outline-offset:-1px}
.readview{border:1px solid var(--line);border-radius:12px;padding:22px 24px;background:var(--paper-2);
  font-family:var(--serif);font-size:1.02rem;line-height:1.78;white-space:pre-wrap;min-height:200px}
.editor-tools{display:flex;gap:8px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.wordcount{margin-left:auto;font-size:.82rem;color:var(--ink-4)}

/* --------------------------------------------------------------- tabs */
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);margin:-20px -20px 18px;padding:0 12px;background:#fcfbf9}
.tabs button{border:none;background:none;padding:13px 14px;font:inherit;font-size:.88rem;font-weight:600;color:var(--ink-3);
  cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button.on{color:var(--brand);border-bottom-color:var(--brand)}

/* ------------------------------------------------------------- results */
.score-head{display:flex;gap:16px;align-items:center;margin-bottom:18px}
.cat-row{display:flex;align-items:center;gap:9px;font-size:.83rem;margin-bottom:7px}
.cat-row span.n{flex:0 0 104px;color:var(--ink-3)}
.cat-row .bar{flex:1;height:6px;background:var(--line);border-radius:3px;overflow:hidden}
.cat-row .bar i{display:block;height:100%}
.cat-row b{flex:0 0 28px;text-align:right;font-variant-numeric:tabular-nums}
.finding{border:1px solid var(--line);border-left:3px solid var(--warn);border-radius:8px;padding:12px 14px;margin-bottom:9px;background:var(--paper-2);cursor:pointer}
.finding:hover{border-color:var(--line-2);box-shadow:var(--shadow)}
.finding.sev3{border-left-color:var(--bad)}
.finding.sev1{border-left-color:var(--ok)}
.finding h6{margin:0 0 5px;font-size:.88rem;font-weight:650}
.finding p{margin:0 0 5px;font-size:.82rem;color:var(--ink-3);line-height:1.5}
.finding .fix{font-size:.82rem;color:var(--good);font-weight:500}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:9px;overflow:hidden;margin-bottom:16px}
.stat{background:var(--paper-2);padding:11px 13px}
.stat b{display:block;font-size:1.1rem;font-variant-numeric:tabular-nums}
.stat span{font-size:.74rem;color:var(--ink-4);text-transform:uppercase;letter-spacing:.05em}
.source{border:1px solid var(--line);border-radius:9px;padding:12px 14px;margin-bottom:9px;background:var(--paper-2)}
.source a{font-size:.9rem;font-weight:600;display:block;margin-bottom:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.source .dom{font-size:.76rem;color:var(--ink-4);font-family:var(--mono)}
.source .simbar{height:5px;background:var(--line);border-radius:3px;margin-top:8px;overflow:hidden}
.source .simbar i{display:block;height:100%;background:var(--warn)}

/* ---------------------------------------------------------------- diff */
.diff{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.diff h6{margin:0 0 8px;font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-4)}
.diff .col{min-width:0}
.diff pre{margin:0;white-space:pre-wrap;font-family:var(--serif);font-size:.95rem;line-height:1.7;
  background:var(--paper-2);border:1px solid var(--line);border-radius:10px;padding:18px;max-height:60vh;overflow:auto}

/* --------------------------------------------------------------- forms */
label.field{display:block;margin-bottom:14px;font-size:.85rem;font-weight:600;color:var(--ink-2)}
label.field span.hint{display:block;font-weight:400;color:var(--ink-4);font-size:.8rem;margin-top:2px}
input.inp,select.inp,textarea.inp{width:100%;margin-top:6px;padding:10px 12px;border:1px solid var(--line-2);border-radius:8px;
  font:inherit;font-size:.92rem;background:var(--paper-2);color:var(--ink)}
input.inp:focus,select.inp:focus,textarea.inp:focus{outline:2px solid var(--brand);outline-offset:-1px;border-color:var(--brand)}
textarea.inp{font-family:var(--serif);line-height:1.6;resize:vertical}
.seg{display:inline-flex;border:1px solid var(--line-2);border-radius:8px;overflow:hidden}
.seg button{border:none;background:var(--paper-2);padding:7px 13px;font:inherit;font-size:.84rem;cursor:pointer;color:var(--ink-3);border-right:1px solid var(--line)}
.seg button:last-child{border-right:none}
.seg button.on{background:var(--ink);color:#fff;font-weight:600}

/* -------------------------------------------------------------- screens */
.auth{display:grid;place-items:center;height:100vh;padding:24px;overflow-y:auto}
.auth-card{width:100%;max-width:410px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow-lg)}
.auth-card h2{font-size:1.5rem;margin-bottom:6px}
.auth-card .sub{color:var(--ink-3);font-size:.92rem;margin-bottom:24px}
.err{background:var(--bad-soft);border:1px solid #f0c6c6;color:var(--bad);padding:10px 13px;border-radius:8px;font-size:.86rem;margin-bottom:16px}
.ok-msg{background:var(--good-soft);border:1px solid #c3e2d2;color:var(--good);padding:10px 13px;border-radius:8px;font-size:.86rem;margin-bottom:16px}
.empty{text-align:center;padding:44px 20px;color:var(--ink-4)}
.empty h3{color:var(--ink-2);margin-bottom:6px}
.spinner{width:15px;height:15px;border:2px solid #ffffff55;border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:11px 20px;
  border-radius:999px;font-size:.88rem;box-shadow:var(--shadow-lg);z-index:200;animation:rise .25s ease}
.toast.bad{background:var(--bad)}
@keyframes rise{from{opacity:0;transform:translate(-50%,10px)}}
.modal{position:fixed;inset:0;background:rgba(20,27,45,.45);display:grid;place-items:center;z-index:150;padding:20px;overflow-y:auto}
.modal-card{background:var(--paper-2);border-radius:var(--r-lg);padding:28px;width:100%;max-width:620px;box-shadow:var(--shadow-lg);max-height:90vh;overflow-y:auto}
.sample-box{border:1px solid var(--line);border-radius:9px;padding:12px;margin-bottom:10px;background:var(--paper)}
.sample-box .row{display:flex;justify-content:space-between;align-items:center;margin-bottom:7px;font-size:.8rem;color:var(--ink-4)}

@media(max-width:1100px){.panes{grid-template-columns:1fr 350px}}
@media(max-width:900px){
  .shell{grid-template-columns:1fr}
  .side{display:none}
  .side.open{display:flex;position:fixed;inset:0 auto 0 0;width:264px;z-index:100;box-shadow:var(--shadow-lg)}
  .panes{grid-template-columns:1fr;grid-template-rows:1fr auto}
  .pane-right{border-left:none;border-top:1px solid var(--line)}
  .diff{grid-template-columns:1fr}
}