/* StegoBench – portal styles (light + dark, keyboard focus, reduced motion, print) */
:root{
  color-scheme:light;
  --navy:#0b1220; --ink:#333e55; --muted:#64748b; --line:#e2e6f0;
  --blue:#2563eb; --blue-d:#1d4ed8; --blue-soft:#eff4ff; --purple:#2563eb;
  --card:#ffffff; --panel:#f8f9fc; --field:#fff; --th:#f1f4f9; --hover:#f8f9fc; --border:#e2e6f0; --border2:#cbd2e1;
  --chip:#f1f4f9; --side:rgba(255,255,255,.9); --sideline:#e2e6f0; --menu:#fff; --hero1:#f8f9fc; --hero2:#f8f9fc;
  --bg:#f8f9fc; --bg1:#f8f9fc; --bg2:#f8f9fc; --shadow:0 1px 2px rgba(15,24,42,.05);
  --warn-bg:#e6eefe; --warn-bd:#acc5fb; --warn:#083492; --err-bg:#fdecec; --err-bd:#f5b5b5; --err:#a11919;
  --good:#059669; --good-bg:#dcfcf1; --out:#0a2d78;
  --hl:90%; --hd:24%;
  --radius:14px; --grad:#0f182a;
}
:root[data-theme=dark]{
  color-scheme:dark;
  --navy:#e9f0fe; --ink:#cdd9f2; --muted:#9aa9c9; --line:#2a3c63;
  --blue:#729df8; --blue-d:#95b5f9; --blue-soft:#223358; --purple:#8caff9;
  --card:rgba(24,37,64,.9); --panel:#1d2d50; --field:#14213c; --th:#213257; --hover:#203156; --border:#2f426c; --border2:#384d7a;
  --chip:#27395f; --side:rgba(18,29,52,.85); --sideline:#2a3c63; --menu:#1b2c50; --hero1:#17274a; --hero2:#1a2845;
  --bg:#0d1831; --bg1:#1a2d55; --bg2:#12295a; --shadow:0 6px 28px rgba(0,0,0,.35);
  --warn-bg:#101e3b; --warn-bd:#14306b; --warn:#90b1f9; --err-bg:#401a1a; --err-bd:#7a2a2a; --err:#fbb7b7;
  --good:#6ee7bf; --good-bg:#123529; --out:#0b255c; --hl:24%; --hd:82%;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme=light]){
    color-scheme:dark;
    --navy:#e9f0fe; --ink:#cdd9f2; --muted:#9aa9c9; --line:#2a3c63;
    --blue:#729df8; --blue-d:#95b5f9; --blue-soft:#223358; --purple:#8caff9;
    --card:rgba(24,37,64,.9); --panel:#1d2d50; --field:#14213c; --th:#213257; --hover:#203156; --border:#2f426c; --border2:#384d7a;
    --chip:#27395f; --side:rgba(18,29,52,.85); --sideline:#2a3c63; --menu:#1b2c50; --hero1:#17274a; --hero2:#1a2845;
    --bg:#0d1831; --bg1:#1a2d55; --bg2:#12295a; --shadow:0 6px 28px rgba(0,0,0,.35);
    --warn-bg:#101e3b; --warn-bd:#14306b; --warn:#90b1f9; --err-bg:#401a1a; --err-bd:#7a2a2a; --err:#fbb7b7;
    --good:#6ee7bf; --good-bg:#123529; --out:#0b255c; --hl:24%; --hd:82%;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;color:var(--ink);font:15px/1.5 "Segoe UI","Helvetica Neue",Arial,sans-serif;
  background:var(--panel),var(--panel),var(--bg);background-attachment:fixed}
svg{width:1em;height:1em;display:inline-block;vertical-align:middle;flex:none}
.hidden{display:none!important}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
code{background:var(--chip);padding:1px 6px;border-radius:6px;font-size:.92em}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:8px;top:-60px;background:var(--blue);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip-link:focus{top:8px}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px}

/* ---------- layout ---------- */
.app{display:grid;grid-template-columns:var(--side-w,172px) minmax(0,1fr);min-height:100vh}
.side{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;align-items:center;padding:14px 10px;background:var(--side);backdrop-filter:blur(8px);border-right:1px solid var(--sideline);z-index:5;overflow-y:auto}
.side-logo{display:grid;place-items:center;width:84px;height:84px;margin-bottom:14px}
.side-logo img{width:64px;height:64px;object-fit:contain}
.nav{display:flex;flex-direction:column;gap:6px;width:100%}
.nav a,.nav button{display:flex;align-items:center;gap:8px;width:100%;padding:9px 8px;border:0;border-radius:12px;background:none;color:var(--ink);font-weight:600;font-size:13.5px;text-decoration:none;text-align:left}
.nav i{display:grid;place-items:center;width:30px;height:30px;font-size:19px;color:var(--ink);flex:none}
.nav a:hover,.nav button:hover{background:var(--blue-soft)}
.nav a.active{background:var(--blue-soft);color:var(--blue-d)}
.nav a.active i{background:var(--panel);color:#fff;border-radius:10px}
.side-card{position:relative;margin-top:auto;width:100%;overflow:hidden;border-radius:18px;padding:14px 12px 62px;background:var(--panel);border:1px solid #e1e9fb;color:#0e224d}
:root[data-theme=dark] .side-card{background:var(--panel);border-color:#344a7a;color:#e9f0fe}
.side-card b{display:block;font-size:13px;margin-top:6px}
.side-card small{display:block;opacity:.75;font-size:11.5px;line-height:1.35;margin-top:3px}
.sc-spark{color:#729df8;font-size:22px}
.sc-wave{position:absolute;left:0;right:0;bottom:0;width:100%;height:60px}
.content{min-width:0}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--sideline);background:var(--panel)}
.hero-art{position:absolute;right:0;top:0;height:100%;width:62%;pointer-events:none}
.hero-inner{position:relative;max-width:1700px;margin:0 auto;padding:16px 28px 18px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.hero h1{margin:0;font-size:36px;line-height:1.1;font-weight:800;color:var(--navy);letter-spacing:-.015em}
.hero h1 span{background:var(--panel);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-tag{margin:2px 0 6px;font-weight:700;color:var(--navy);font-size:15px;letter-spacing:.01em}
.hero-tag i{font-style:normal;margin:0 6px}
.hero-desc{margin:0;max-width:560px;color:var(--muted);font-size:14.5px;line-height:1.65}
.privacy{display:flex;flex-direction:column;align-items:flex-end;gap:12px;padding-top:6px}
.pill{display:inline-flex;align-items:center;gap:10px;background:var(--field);border:1px solid var(--border);border-radius:99px;padding:6px 8px 6px 16px;color:#0d9f6e;font-weight:600;font-size:14.5px;box-shadow:0 4px 14px rgba(16,185,129,.12)}
.dot{width:10px;height:10px;border-radius:50%;background:#10b981;display:inline-block}
.pill-ic{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--chip);color:var(--muted);font-size:18px}
.nodata{display:inline-flex;gap:8px;align-items:center;color:var(--muted);font-size:13px}

/* ---------- cards ---------- */
.wrap{max-width:1700px;margin:0 auto;padding:20px 28px 36px;display:flex;flex-direction:column;gap:20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 22px 22px;scroll-margin-top:12px}
.card-head{display:flex;align-items:center;gap:18px;margin-bottom:14px}
.card-head h2{margin:0;font-size:24px;line-height:1.2;color:var(--navy);font-weight:800}
.card-head p{margin:2px 0 0;color:var(--muted);font-size:14.5px}
.badge{width:58px;height:58px;border-radius:50%;flex:none;display:grid;place-items:center;color:#fff;font-weight:800;font-size:28px;background:var(--panel);box-shadow:0 6px 16px rgba(47,106,232,.35)}
.actions{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* ---------- step 1 ---------- */
.s1-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr)}
.s1-left{padding-right:26px;border-right:1px solid var(--line)}
.s1-right{padding-left:26px;display:flex;flex-direction:column;gap:14px}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:14px 16px 12px}
.field-head{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.field-head b,.fbody label b,.lblrow b{font-size:15px;color:var(--navy);font-weight:700}
.field-head small{display:block;color:var(--muted);font-size:12.5px;margin-top:1px}
.tiny{font-size:11.5px}
.info{display:inline-grid;place-items:center;color:var(--muted);font-size:15px;margin-left:3px;vertical-align:-2px;cursor:help;position:relative;border-radius:50%}
.info[data-tip]:hover::after,.info[data-tip]:focus::after{content:attr(data-tip);position:absolute;left:50%;bottom:calc(100% + 8px);transform:translateX(-30%);width:260px;max-width:70vw;padding:9px 12px;border-radius:10px;background:#11203f;color:#f2f6fe;font:500 12.5px/1.45 "Segoe UI","Helvetica Neue",Arial,sans-serif;text-align:left;z-index:30;box-shadow:0 10px 30px rgba(0,0,0,.35);white-space:normal}
.tile{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:26px;flex:none;box-shadow:0 4px 12px rgba(80,118,200,.1)}
.tile.blue{background:#e5edfe;color:#2f6ae8}.tile.purple{background:#eff4fe;color:#3866ca}
.tile.green{background:#dff6ee;color:#12a071}.tile.violet{background:#eff4fe;color:#3054a3}
:root[data-theme=dark] .tile.blue{background:#234182;color:#a2befa}:root[data-theme=dark] .tile.purple{background:#2a4378;color:#b4cafb}
:root[data-theme=dark] .tile.green{background:#144132;color:#7ee2c1}:root[data-theme=dark] .tile.violet{background:#29437a;color:#afc7fb}
.seg{display:inline-flex;gap:2px;background:var(--chip);border-radius:12px;padding:3px;margin:0 0 10px}
.seg button{border:0;background:none;padding:7px 14px;border-radius:9px;font-weight:600;font-size:13.5px;color:var(--muted)}
.seg button.on{background:var(--field);color:var(--blue-d);box-shadow:0 2px 8px rgba(60,104,200,.14)}
.seg.small{margin:0}.seg.small button{padding:4px 12px;font-size:12.5px}
.lblrow{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px}
.drop{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:96px;border:1.5px dashed #a9bfee;border-radius:12px;background:var(--field);cursor:pointer;transition:.15s;text-align:center;padding:10px}
.drop:hover,.drop:focus-visible,.drop.over{background:var(--blue-soft);border-color:var(--blue)}
.drop-ic{font-size:32px;color:#4f81ee}
.drop-main{font-weight:700;color:var(--blue-d);font-size:16px}
.drop-sub{color:var(--muted);font-size:13px}
.filerow{display:flex;align-items:center;gap:14px;margin-top:10px;background:var(--field);border:1px solid var(--border);border-radius:12px;padding:8px 12px}
.thumb{width:52px;height:46px;border-radius:8px;overflow:hidden;background:var(--blue-soft);display:grid;place-items:center;flex:none}
.thumb canvas{width:100%;height:100%;object-fit:cover}
.fmeta{display:flex;flex-direction:column;min-width:0}
.fmeta b{font-size:14px;color:var(--navy);word-break:break-all}
.fmeta small{color:var(--muted);font-size:12px}
.fstatus{margin-left:auto;display:inline-flex;gap:7px;align-items:center;color:var(--good);font-weight:600;font-size:13px;white-space:nowrap}
.okdot{display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;background:#16a374;color:#fff;font-size:12px;flex:none}
.dotsbtn{border:0;background:none;color:var(--muted);font-size:22px;padding:2px 6px;border-radius:8px}
.dotsbtn:hover{background:var(--blue-soft)}
.samplebtns{display:flex;flex-wrap:wrap;gap:4px 12px}
.samplebtn{display:inline-flex;align-items:center;gap:8px;margin:10px 0 0 2px;border:0;background:none;color:var(--blue);font-weight:600;font-size:13.5px;padding:4px 6px;border-radius:8px}
.samplebtn:hover{background:var(--blue-soft)}
.samplebtn svg{font-size:17px;color:#5387f6}
.frow{display:flex;gap:16px;align-items:flex-start}
.fbody{flex:1;min-width:0}
.fbody label{display:block;margin:0 0 6px}
.fbody.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.check{display:flex!important;gap:8px;align-items:center;margin:8px 0 0!important;font-size:13.5px;color:var(--ink);cursor:pointer}
.check input{width:17px;height:17px;accent-color:var(--blue)}
.ta-wrap{position:relative}
textarea,input[type=number],input[type=text],select,input[type=file]{width:100%;border:1px solid var(--border2);border-radius:12px;background:var(--field);padding:11px 14px;font-size:15px;outline:none;transition:.15s}
textarea{min-height:92px;resize:vertical;padding-bottom:28px}
textarea:focus,input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,106,232,.2)}
.counter{position:absolute;right:14px;bottom:8px;font-size:12px;color:var(--muted);pointer-events:none;display:flex;gap:6px;align-items:center}
.counter svg{font-size:14px}
.select-wrap{position:relative}
select{appearance:none;-webkit-appearance:none;padding-right:42px;cursor:pointer}
.select-wrap::after{content:"";position:absolute;right:18px;top:50%;width:7px;height:7px;border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:translateY(-70%) rotate(45deg);pointer-events:none}
.notice{margin:14px 0 0;padding:10px 14px;border-radius:10px;background:var(--warn-bg);border:1px solid var(--warn-bd);color:var(--warn);font-size:14px}
.notice.err{background:var(--err-bg);border-color:var(--err-bd);color:var(--err)}

/* ---------- step 2 ---------- */
.methods{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.mpill{position:relative;display:flex;align-items:center;gap:12px;border:1px solid var(--border2);background:var(--panel);border-radius:14px;padding:10px 14px 10px 12px;cursor:pointer;transition:.15s;user-select:none}
.mpill:hover{background:var(--blue-soft)}
.mpill input{position:absolute;opacity:0;pointer-events:none}
.mic{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-size:24px;flex:none}
.mtxt{flex:1;min-width:0}
.mtxt b{display:block;font-size:14.5px;color:var(--navy);font-weight:700;line-height:1.25}
.mtxt small{color:var(--muted);font-size:12.5px}
.cbox{align-self:flex-start;margin-top:-2px;width:22px;height:22px;border-radius:6px;border:2px solid var(--border2);background:var(--field);display:grid;place-items:center;color:#fff;font-size:15px;flex:none;transition:.12s}
.cbox svg{opacity:0}
.mpill input:checked ~ .cbox{background:var(--blue);border-color:var(--blue)}
.mpill input:checked ~ .cbox svg{opacity:1}
.mpill input:focus-visible ~ .cbox{box-shadow:0 0 0 3px rgba(47,106,232,.35)}
.runopts{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:14px}
.runopts .select-wrap.inline{min-width:220px}
.runrow{display:flex;align-items:center;gap:24px;margin-top:14px;flex-wrap:wrap}
.run{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-width:266px;height:48px;border:0;border-radius:12px;color:#fff;font-weight:700;font-size:17px;background:var(--grad);box-shadow:0 8px 18px rgba(80,131,240,.32);transition:.15s}
.run svg{font-size:20px}
.run:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 10px 22px rgba(80,131,240,.4)}
.run:disabled{opacity:.55;box-shadow:none;cursor:not-allowed}
.progress{flex:1 1 220px;height:9px;border-radius:99px;background:var(--chip);overflow:hidden}
.progress i{display:block;height:100%;width:0;border-radius:99px;background:var(--panel);transition:width .12s linear}
.status{display:inline-flex;align-items:center;gap:9px;color:var(--muted);font-size:14.5px;min-width:250px;justify-content:flex-end;text-align:right}
.status>svg{font-size:20px}
.status .okdot{width:20px;height:20px}

/* ---------- menus / buttons / tabs ---------- */
.menu-host{position:relative;margin-left:auto}
.actions .menu-host{margin-left:0}
.menu{position:absolute;top:calc(100% + 6px);left:0;min-width:260px;background:var(--menu);border:1px solid var(--border2);border-radius:12px;box-shadow:0 12px 30px rgba(10,32,80,.2);padding:6px;z-index:20;display:flex;flex-direction:column}
.menu.right,.presets .menu{left:auto;right:0}
.menu button{border:0;background:none;text-align:left;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--ink)}
.menu button:hover{background:var(--blue-soft)}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;background:var(--blue);color:#fff;font-weight:600;font-size:14px;padding:9px 16px;border-radius:10px}
:root[data-theme=dark] .btn:not(.ghost){color:#0d1831}
.btn:hover{background:var(--blue-d)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.ghost{background:var(--field);color:var(--blue-d);border:1px solid var(--border2)}
.btn.ghost:hover{background:var(--blue-soft)}
.btn svg{font-size:17px}
.chev{width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);margin-left:6px}
.select-wrap.goal select{padding-left:42px;min-width:230px;font-weight:600;color:var(--navy)}
.goal-ic{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:18px;color:var(--blue);z-index:1;pointer-events:none}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:14px;flex-wrap:wrap}
.tabs button{border:0;background:none;padding:9px 16px;border-radius:10px 10px 0 0;font-weight:700;font-size:14px;color:var(--muted);border-bottom:3px solid transparent}
.tabs button.on{color:var(--blue-d);border-bottom-color:var(--blue)}

/* ---------- results ---------- */
.empty{border:1.5px dashed var(--border2);border-radius:14px;padding:30px;text-align:center;color:var(--muted);background:var(--panel)}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-bottom:16px}
.tilebox{display:flex;gap:14px;align-items:center;border:1px solid var(--border);border-radius:14px;background:var(--panel);padding:12px 16px}
.tilebox .ticon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:26px;background:#e5edfe;color:#2f6ae8;flex:none}
.tilebox .ticon.p{background:#eff4fe;color:#3866ca}.tilebox .ticon.s{background:#eff4fe;color:#4678e5}
:root[data-theme=dark] .tilebox .ticon{background:#234182;color:#a2befa}:root[data-theme=dark] .tilebox .ticon.p{background:#2a4378;color:#b4cafb}:root[data-theme=dark] .tilebox .ticon.s{background:#2d4780;color:#aec6fb}
.tilebox small{display:block;color:var(--muted);font-size:12px;font-weight:600}
.tilebox b{display:block;font-size:18px;color:var(--navy);line-height:1.25}
.tilebox em{font-style:normal;font-size:12px;color:var(--muted);margin-left:6px;font-weight:500}
.tilebox span.sub{display:block;font-size:12px;color:var(--muted);margin-top:1px}
.chip{display:inline-flex;align-items:center;gap:5px;padding:2px 10px;border-radius:99px;font-size:11.5px;font-weight:700;margin-top:5px}
.chip svg{font-size:12px}
.chip.g{background:var(--good-bg);color:var(--good)}.chip.p{background:#eff4fe;color:#3054a3}.chip.o{background:#d7e3fd;color:#0c46c2}
.chip.r{background:var(--err-bg);color:var(--err)}
:root[data-theme=dark] .chip.p{background:#2a4378;color:#bfd2fc}:root[data-theme=dark] .chip.o{background:#12244a;color:#90b1f9}
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:14px;background:var(--field)}
table{border-collapse:collapse;width:100%;font-size:13.5px}
th,td{padding:10px 14px;text-align:left;white-space:nowrap;border-bottom:1px solid var(--line)}
th{background:var(--th);color:var(--muted);font-weight:600;font-size:12.5px}
tr:last-child td{border-bottom:0}
tbody tr:hover td{background:var(--hover)}
td small.sd{color:var(--muted);font-size:11px;margin-left:3px}
.rk{display:inline-grid;place-items:center;width:24px;height:24px;font-weight:700;color:var(--ink)}
tr.first .rk{color:#0e56f2;font-size:20px}
.mname{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--navy)}
.mname i{display:grid;place-items:center;width:24px;height:24px;border-radius:7px;font-size:15px}
.ovr{display:inline-block;min-width:54px;text-align:center;padding:3px 12px;border-radius:99px;font-weight:800;font-size:13px;background:var(--blue-soft);color:var(--blue-d)}
tr.first .ovr{background:var(--good-bg);color:var(--good)}
.fmt{display:inline-block;margin-left:8px;padding:1px 8px;border-radius:99px;background:var(--chip);color:var(--muted);font-size:11px;font-weight:700}
.par{display:inline-block;margin-left:6px;padding:0 7px;border-radius:99px;border:1.5px solid var(--blue);color:var(--blue-d);font-size:10.5px;font-weight:800}
.skip{color:var(--warn)}
.hint{color:var(--muted);font-size:12.5px;margin:8px 2px 0}
h3{margin:22px 0 6px;font-size:17px;color:var(--navy)}
h4{margin:6px 0 6px;font-size:14px;color:var(--navy)}
.recs{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:8px}
.recs li{border:1px solid var(--border);background:var(--panel);border-radius:12px;padding:9px 14px;font-size:13.5px}
.recs li b{color:var(--navy)}
.heat td.cell{text-align:center;font-weight:700;min-width:84px}
.heat th{text-align:center}.heat th.l,.heat td.l{text-align:left;position:sticky;left:0;background:var(--field);z-index:1}
.heat th.l{background:var(--th)}
.cell small{display:block;font-weight:500;font-size:10.5px;opacity:.75}
.chart{width:100%;display:block;border:1px solid var(--border);border-radius:12px;background:var(--panel);margin-top:8px}
.chart-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin:10px 2px 0;font-size:13px}
.legend span{display:inline-flex;align-items:center;gap:7px}
.legend i{width:12px;height:12px;border-radius:50%;display:inline-block}
details.more{margin-top:18px;border:1px solid var(--border);border-radius:12px;background:var(--panel);padding:2px 16px}
details.more summary{cursor:pointer;padding:11px 0;font-weight:700;color:var(--navy)}
details.more[open]{padding-bottom:14px}
.guide p{margin:8px 0;font-size:13.5px;max-width:90ch}
.repro{margin:6px 0 0;padding:12px 14px;border-radius:10px;background:var(--field);border:1px solid var(--border);font:12px/1.5 ui-monospace,Menlo,Consolas,monospace;white-space:pre-wrap;word-break:break-word;max-height:340px;overflow:auto}
.sig{font-weight:700}.sig.y{color:var(--good)}.sig.n{color:var(--muted)}
.inspect-bar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.inspect-bar label{font-weight:700;color:var(--navy)}
.select-wrap.inline{min-width:260px}
.imgs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.imgs figure{margin:0;text-align:center}
.imgs canvas{width:100%;height:auto;border-radius:12px;border:1px solid var(--border);background:#000;display:block}
.imgs.zooms{margin-top:6px}.imgs.zooms canvas{image-rendering:pixelated;max-width:260px;margin:0 auto}
.imgs figcaption{font-size:13px;color:var(--muted);margin-top:6px;font-weight:600}
#cvCover,#cvStego,#cvDiff{cursor:crosshair;touch-action:none}
.extract-grid{display:grid;grid-template-columns:2fr 1.3fr 1.4fr 1fr 1.2fr auto;gap:16px;align-items:end}
.extract-grid label{display:block;margin-bottom:6px;font-size:14px}
.extract-grid input[type=file]{padding:8px 10px}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;min-height:6px}
.exout{margin:12px 0 0;padding:14px 16px;background:var(--out);color:#fff;border-radius:12px;font:14px/1.5 ui-monospace,Menlo,Consolas,monospace;white-space:pre-wrap;word-break:break-word;min-height:54px}
.foot{text-align:center;color:var(--muted);font-size:13px;padding:6px 0}
dialog{border:0;border-radius:18px;padding:24px 26px;box-shadow:0 20px 60px rgba(30,58,120,.3);width:min(460px,92vw);color:var(--ink);background:var(--menu)}
dialog::backdrop{background:rgba(20,39,80,.45)}
dialog h2{margin:0 0 14px;color:var(--navy)}
dialog label{display:block;margin-bottom:6px}
.dlg-actions{text-align:right;margin-top:14px}
.c-blue{color:#2f6ae8;background:#e4ecfe}.c-green{color:#16a374;background:#dcf5ed}.c-cyan{color:#093eb1;background:#d9e3f9}.c-pink{color:#2760db;background:#e3ebfd}
.c-purple{color:#3d76f0;background:#eff4fe}.c-teal{color:#0d9467;background:#d9f6ec}.c-orange{color:#0c52ea;background:#dee8fd}.c-amber{color:#1f4fb7;background:#d0defd}
:root[data-theme=dark] .c-blue{background:#234182;color:#adc6fb}:root[data-theme=dark] .c-green{background:#144132;color:#7ee2c1}:root[data-theme=dark] .c-cyan{background:#10244f;color:#7fa2ee}:root[data-theme=dark] .c-pink{background:#1a2b4f;color:#a1bdfa}
:root[data-theme=dark] .c-purple{background:#2a4378;color:#bcd0fb}:root[data-theme=dark] .c-teal{background:#104433;color:#7eeac6}:root[data-theme=dark] .c-orange{background:#14264d;color:#8aadf9}:root[data-theme=dark] .c-amber{background:#14254a;color:#90b1f9}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .s1-grid{grid-template-columns:1fr}
  .s1-left{padding:0 0 20px;border-right:0;border-bottom:1px solid var(--line)}
  .s1-right{padding:20px 0 0}
  .extract-grid{grid-template-columns:1fr 1fr}
  .chart-pair{grid-template-columns:1fr}
}
@media (max-width:860px){
  .app{grid-template-columns:1fr}
  .side{position:static;height:auto;flex-direction:row;align-items:center;gap:8px;padding:8px 12px;border-right:0;border-bottom:1px solid var(--sideline);overflow-x:auto}
  .side-logo{width:52px;height:52px;margin:0}.side-logo img{width:44px;height:44px}
  .nav{flex-direction:row;width:auto}.nav a,.nav button{width:auto;white-space:nowrap}
  .side-card{display:none}
}
@media (max-width:700px){
  .hero-inner,.wrap{padding-left:14px;padding-right:14px}
  .privacy{align-items:flex-start}
  .card{padding:14px}
  .badge{width:46px;height:46px;font-size:22px}
  .card-head{flex-wrap:wrap}.card-head h2{font-size:20px}
  .actions,.menu-host{margin-left:0;width:100%}
  .imgs,.extract-grid,.fbody.grid3{grid-template-columns:1fr}
  .run{width:100%}.status{justify-content:flex-start;min-width:0;text-align:left}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{
  body{background:var(--card);color:#000}
  .side,.no-print,.hero-art,#step1,#step2,.privacy,.hero-desc,#lbEmpty,.skip-link,#extractCard{display:none!important}
  .app{display:block}
  .card{box-shadow:none;border:0;padding:0;background:var(--card);break-inside:avoid-page}
  .wrap{padding:0}.hero{background:var(--card);border:0}
  details.more{display:block}details.more>*{display:block}
  .table-wrap{overflow:visible}
  table{font-size:11px}th,td{padding:5px 6px}
  .tabs{display:none}#dp-break,#dp-detect,#dp-sweep{display:block!important}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}

/* ---- refinement: minimal, calm, light ---- */
body{background:var(--bg)!important}
.hero{background:var(--panel)}
.hero h1{font-weight:700;letter-spacing:-.02em}
.hero h1 span{background:none!important;-webkit-text-fill-color:currentColor;color:var(--blue)}
.card{border-radius:14px;box-shadow:var(--shadow)}
.btn:not(.ghost){background:var(--blue);box-shadow:none;border-radius:10px;font-weight:600}
.btn:not(.ghost):hover{background:var(--blue-d)}
.side-card{background:var(--blue-soft);border-color:var(--border)}
.hero-greet{font-style:italic;color:var(--muted)}
.hero-art{opacity:.4;filter:saturate(.35)}
.side-card svg{opacity:.5;filter:saturate(.35)}
.badge{background:var(--blue)!important;box-shadow:none!important}

/* ---- StegoBench "Stitch" theme: slate, indigo accent, near-black actions, mono labels ---- */
:root{--mono:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,monospace}
body{background:var(--bg)!important;color:var(--ink)}
h1,h2,h3{color:var(--navy);letter-spacing:-.02em}
.card,.hero-card,.hdr-inner{background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow)}
.btn-primary,.nav .nav-cta,.btn:not(.ghost){background:#0f182a!important;color:#fff!important;border-radius:8px;box-shadow:none;font-weight:600}
.btn-primary:hover,.nav .nav-cta:hover,.btn:not(.ghost):hover{background:#1e273b!important}
.btn-ghost,.btn.ghost{background:var(--card);border:1px solid var(--border2);border-radius:8px;color:var(--navy);font-weight:600}
.eyebrow,.eyebrow.pill,.tag,.chip,.hc-pill,.pill{font-family:var(--mono);text-transform:uppercase;letter-spacing:.04em;font-size:11px;font-weight:500;background:#f1f4f9!important;color:#333e55!important;border:1px solid var(--border);border-radius:999px}
.eyebrow.pill svg{display:none}
.grad,.hero h1 span{background:none!important;-webkit-text-fill-color:currentColor;color:var(--blue)!important}
.tag.t-green{background:#ecfdf7!important;color:#067651!important}
.tag.t-blue,.tag.t-purple{background:#eff4fe!important;color:#3866ca!important}

.side{background:var(--card);border-right:1px solid var(--border);backdrop-filter:none}
.nav a.active{background:#f1f4f9;color:var(--navy)}
.hero{background:var(--bg);border-bottom:1px solid var(--border)}
.hero h1{font-weight:700;letter-spacing:-.02em}
.hero-greet{font-family:var(--mono);font-size:12px;font-style:normal;color:var(--blue)}
.badge{background:#0f182a!important;box-shadow:none!important;border-radius:6px;font-family:var(--mono)}
.tile,.tilebox .ticon,.ic{background:#f1f4f9!important;color:var(--navy)!important}
th{font-family:var(--mono);text-transform:uppercase;font-size:11px;letter-spacing:.05em;color:var(--muted)}
td.num,.num{font-family:var(--mono)}
.pill{box-shadow:none!important;background:var(--card)!important}
.badge{width:auto;min-width:36px;height:36px;border-radius:8px}

/* draggable sidebar edge */
.side{position:sticky}
.side-resizer{position:absolute;top:0;right:-4px;width:9px;height:100%;cursor:col-resize;z-index:6;touch-action:none}
.side-resizer::after{content:"";position:absolute;top:50%;left:3px;width:3px;height:44px;margin-top:-22px;border-radius:3px;background:var(--border2);transition:background .15s,height .15s}
.side-resizer:hover::after,.side-resizer:focus-visible::after,.resizing .side-resizer::after{background:var(--blue);height:64px;margin-top:-32px}
.side-resizer:focus-visible{outline:2px solid var(--blue);outline-offset:-2px}
body.resizing{cursor:col-resize;user-select:none}
@media (max-width:900px){.side-resizer{display:none}}
@media print{.side-resizer{display:none}}

/* ===== palette: blue (brand) + green (good) + red (bad) + slate ===== */
.btn:not(.ghost),.badge{background:var(--blue)!important}
.hero h1 span{color:var(--blue)!important}
.nav a.active{background:var(--blue-soft);color:var(--blue-d)}
.side-logo{width:auto;height:auto;margin-bottom:10px}.side-logo svg{width:44px;height:44px;display:block}

:root[data-theme=dark] .btn:not(.ghost){color:#0b1020!important}
:root[data-theme=dark] .badge{color:#0b1020!important}
:root[data-theme=dark] .side,:root[data-theme=dark] .hero{background:var(--card)}
:root[data-theme=dark] .hero-greet{color:var(--blue)}
:root{--bg-alt:var(--th)}
.pill{color:var(--navy)!important}
:root[data-theme=dark] .tile,:root[data-theme=dark] .tilebox .ticon,:root[data-theme=dark] .ic{background:var(--chip)!important;color:var(--ink)!important}

/* ===== new design layer: warm paper, one ink, one accent, square, flat ===== */
:root{--serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;--sans:"Segoe UI","Helvetica Neue",Arial,sans-serif;--mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
 --bg:#f2eee3;--bg1:#f2eee3;--bg2:#f2eee3;--bg-alt:#ece7da;--card:#f8f5ec;--panel:#f8f5ec;--th:#ece7da;--hover:#efe9dc;--chip:#ece7da;--hdr:#f2eee3;--hero1:#f2eee3;--hero2:#f2eee3;
 --navy:#1d1c19;--ink:#1d1c19;--muted:#645f54;--line:#d6d0c0;--border:#d6d0c0;--border2:#bfb8a6;--sideline:#d6d0c0;
 --blue:#1f4d3a;--blue-d:#173a2c;--blue-soft:#e3e9df;--purple:#1f4d3a;--grad:#1f4d3a;--shadow:none;--radius:0}
:root[data-theme=dark]{--bg:#171613;--bg1:#171613;--bg2:#171613;--bg-alt:#1f1e1a;--card:#1f1e1a;--panel:#1f1e1a;--th:#26241f;--hover:#26241f;--chip:#26241f;--hdr:#171613;--hero1:#171613;--hero2:#171613;
 --navy:#ece8dc;--ink:#ece8dc;--muted:#a09b8e;--line:#37352e;--border:#37352e;--border2:#4a473d;--sideline:#37352e;--blue:#8fc4a6;--blue-d:#a9d6bd;--blue-soft:#243329;--purple:#8fc4a6;--grad:#8fc4a6}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#171613;--bg1:#171613;--bg2:#171613;--bg-alt:#1f1e1a;--card:#1f1e1a;--panel:#1f1e1a;--th:#26241f;--hover:#26241f;--chip:#26241f;--hdr:#171613;--hero1:#171613;--hero2:#171613;
 --navy:#ece8dc;--ink:#ece8dc;--muted:#a09b8e;--line:#37352e;--border:#37352e;--border2:#4a473d;--sideline:#37352e;--blue:#8fc4a6;--blue-d:#a9d6bd;--blue-soft:#243329;--purple:#8fc4a6;--grad:#8fc4a6}}
*,*::before,*::after{border-radius:0!important;box-shadow:none!important;text-shadow:none!important;transition:none!important}
body{font-family:var(--sans)!important;background:var(--bg)!important;color:var(--ink)}
h1,h2,.card-head h2,.hero h1{font-family:var(--serif)!important;font-weight:400!important;letter-spacing:-.01em;color:var(--navy)}
.hero h1 span{color:var(--blue)!important;background:none!important;-webkit-text-fill-color:currentColor;font-style:italic}
.side{background:var(--bg)!important;border-right:1px solid var(--line);backdrop-filter:none!important}
.side-wm{font:700 17px/1.1 var(--serif);color:var(--navy);display:block;padding:4px 2px 14px}
.side-card{display:none!important}
.nav{counter-reset:n}
.nav a{counter-increment:n;gap:8px}
.nav a::before{content:counter(n,decimal-leading-zero);font:11px var(--mono);color:var(--muted)}
.nav a.active{background:transparent!important;color:var(--navy)!important;font-weight:700;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:6px}
.nav a.active i,.nav a i{background:none!important;color:inherit}
.card,.card-head{background:var(--card);border:1px solid var(--line)}
.card{border-top:1px solid var(--ink)}
.hero{background:var(--bg)!important;border-bottom:1px solid var(--line);padding-bottom:18px!important;min-height:0!important}
.hero-greet{font:12.5px var(--mono)!important;font-style:normal!important;color:var(--muted)!important}
.pill,.nodata,.chip,.tag{background:transparent!important;border:1px solid var(--line)!important;color:var(--ink)!important;font-family:var(--mono)}
.badge{background:var(--navy)!important;color:var(--bg)!important;font:400 22px var(--serif)!important;width:40px!important;height:40px!important}
.btn:not(.ghost){background:var(--navy)!important;color:var(--bg)!important;border:1px solid var(--navy);font-weight:600}
.btn:not(.ghost):hover{background:var(--blue)!important;border-color:var(--blue)}
.btn.ghost{background:transparent!important;border:1px solid var(--border2);color:var(--ink)}
.progress{background:var(--chip)!important;border:1px solid var(--line)}.progress i{background:var(--blue)!important}
input,select,textarea{background:var(--bg)!important;border:1px solid var(--border2)!important;color:var(--ink)}
input:focus,select:focus,textarea:focus{border-color:var(--ink)!important;outline:0}
th{font-family:var(--sans)!important;font-weight:600;color:var(--muted)}
td.num,.num{font-family:var(--mono)}
.side-resizer::after{background:var(--border2)}.side-resizer:hover::after,.resizing .side-resizer::after{background:var(--blue)}
.tile,.tilebox .ticon,.ic{display:none!important}
/* skeleton loaders for empty result areas */
.skel-rows{display:grid;gap:10px;margin-bottom:14px}
.skel-rows .skel{display:block;height:16px;background:var(--line);animation:sbSkel 1.3s ease-in-out infinite}
.skel-rows .skel:nth-child(1){width:92%}.skel-rows .skel:nth-child(2){width:78%}.skel-rows .skel:nth-child(3){width:85%}.skel-rows .skel:nth-child(4){width:60%}
@keyframes sbSkel{0%,100%{opacity:.45}50%{opacity:1}}
@media (prefers-reduced-motion:reduce){.skel-rows .skel{animation:none}}
.mname i,.mic,.rk svg,.tilebox .ticon{display:none!important}
.mname{gap:0}
.okdot,#statusIc{display:none!important}

.nav a::before{display:none!important}
.side .nav a,.side nav a,.side button{justify-content:flex-start;text-align:left;font-size:13.5px;padding:9px 8px;white-space:nowrap}
.card-head{border:0!important;background:transparent!important}
.pill i,.pill svg{display:none!important}
.dropzone,.drop{background:var(--bg)!important}
.pill .dot{display:inline-block;width:7px;height:7px;background:var(--blue);margin-right:8px}

/* trade-off map key */
.legend .k-fill,.legend .k-ring{width:12px;height:12px;display:inline-block}
.legend .k-fill{background:var(--blue)}
.legend .k-ring{border:2px solid var(--muted);background:var(--bg)}
.legend .k-note{color:var(--muted)}
canvas.chart{background:var(--card);border:1px solid var(--line)}