@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600;700&display=swap');

:root{
  --paper:#FFFFFF; --paper-raised:#F6F9FD; --paper-alt:#EEF3FB;
  --ink:#12181F; --ink-soft:#57626F; --ink-faint:#8A94A0;
  --line:#E4E9F1; --line-soft:#EEF3FB;
  --feature:#2F6FED; --feature-soft:rgba(47,111,237,.08); --feature-line:rgba(47,111,237,.25);
  --llm:#7B5CFA; --llm-soft:rgba(123,92,250,.09); --llm-line:rgba(123,92,250,.3);
  --gate:#F2A93C; --gate-soft:rgba(242,169,60,.12); --gate-line:rgba(242,169,60,.35);
  --ok:#1FAE6F; --ok-soft:rgba(31,174,111,.10); --ok-line:rgba(31,174,111,.3);
  --sans:"IBM Plex Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shadow-sm:0 1px 2px rgba(18,24,31,.05), 0 1px 1px rgba(47,111,237,.04);
  --shadow-md:0 12px 32px -10px rgba(47,111,237,.16), 0 4px 10px -4px rgba(18,24,31,.06);
  --shadow-glow:0 0 0 1px rgba(47,111,237,.10), 0 6px 18px -6px rgba(47,111,237,.35);
  --r-sm:4px; --r-md:8px; --r-lg:10px;
}
*{box-sizing:border-box}
body{
  margin:0;color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.55;
  background:
    radial-gradient(ellipse 1100px 520px at 50% -160px, rgba(47,111,237,.12), transparent 70%),
    var(--paper);
}
a{color:var(--feature);text-decoration:none} a:hover{color:var(--ink);text-decoration:underline}
code{font-family:var(--mono);font-size:.92em}

header.nav{border-bottom:1px solid var(--line)}
.nav-inner{max-width:1100px;margin:0 auto;padding:1rem 1.5rem;display:flex;align-items:center;gap:2rem}
.nav-brand{font-family:var(--sans);font-weight:600;font-size:1.08rem;letter-spacing:-.01em;display:flex;align-items:center;gap:.55rem;color:var(--ink)}
.nav-brand::before{
  content:"M";width:24px;height:24px;border-radius:var(--r-md);
  background:linear-gradient(135deg,var(--feature),var(--llm));
  color:#fff;font-size:.7rem;font-weight:700;font-family:var(--sans);
  display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--shadow-glow);
}
.nav-links{display:flex;gap:.3rem;font-size:.87rem}
.nav-links a{color:var(--ink-soft);padding:.4rem .9rem;border-radius:var(--r-lg)}
.nav-links a:hover{color:var(--ink);text-decoration:none;background:var(--paper-alt)}
.nav-links a.active{color:var(--feature);font-weight:600;background:var(--feature-soft)}
.lang-switch a{color:var(--ink-faint);padding:.3rem .5rem;border-radius:var(--r-md);font-weight:600;letter-spacing:.02em}
.lang-switch a:hover{color:var(--ink);text-decoration:none;background:var(--paper-alt)}
.lang-switch a.active{color:var(--feature);background:var(--feature-soft)}
.nav-stats{
  margin-left:auto;font-family:var(--mono);font-size:.74rem;color:var(--ink-faint);
  display:flex;align-items:center;gap:1rem;background:var(--paper-raised);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:.4rem .8rem;
}

main{max-width:1100px;margin:0 auto;padding:2.6rem 1.5rem 4rem}
h1{font-family:var(--sans);font-weight:600;font-size:1.85rem;margin:0 0 .4rem;letter-spacing:-.02em}
h2{font-family:var(--sans);font-weight:600;font-size:1.25rem;margin:1.8rem 0 .6rem;letter-spacing:-.01em}
.dek{color:var(--ink-soft);margin:0 0 1.6rem;max-width:42rem}

.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;width:2.1rem;height:2.1rem;
  padding:0;background:none;border:1px solid transparent;border-radius:var(--r-md);
  color:var(--ink-soft);box-shadow:none;cursor:pointer;
}
.menu-btn:hover{background:var(--paper-alt);color:var(--ink);opacity:1}

.sidebar-backdrop{
  position:fixed;inset:0;background:rgba(18,24,31,.4);opacity:0;pointer-events:none;
  transition:opacity .2s ease;z-index:90;
}
.sidebar-backdrop.open{opacity:1;pointer-events:auto}

.admin-sidebar{
  position:fixed;top:0;left:0;height:100vh;width:17.5rem;max-width:85vw;
  background:var(--paper);border-right:1px solid var(--line);box-shadow:var(--shadow-md);
  transform:translateX(-100%);transition:transform .22s ease;z-index:100;
  display:flex;flex-direction:column;overflow-y:auto;
}
.admin-sidebar.open{transform:translateX(0)}
.admin-sidebar-header{
  display:flex;align-items:center;justify-content:space-between;flex-shrink:0;
  padding:1.1rem 1.3rem;border-bottom:1px solid var(--line);
  font-family:var(--sans);font-weight:600;font-size:.95rem;
}
.sidebar-close{
  display:inline-flex;align-items:center;justify-content:center;width:1.9rem;height:1.9rem;
  padding:0;background:none;border:none;border-radius:var(--r-md);color:var(--ink-faint);
  box-shadow:none;cursor:pointer;
}
.sidebar-close:hover{background:var(--paper-alt);color:var(--ink);opacity:1}
.admin-sidebar-nav{padding:1rem .9rem 2rem}
.admin-sidebar-link-top{
  display:flex;align-items:center;gap:.65rem;font-weight:600;color:var(--ink);
  padding:.55rem .6rem;border-radius:var(--r-md);margin-bottom:1.2rem;font-size:.9rem;
}
.admin-sidebar-link-top:hover{background:var(--feature-soft);color:var(--feature);text-decoration:none}
.admin-sidebar-group{margin-bottom:1.3rem}
.admin-sidebar-group-label{
  display:flex;align-items:center;gap:.55rem;font-family:var(--mono);font-size:.68rem;
  letter-spacing:.05em;text-transform:uppercase;color:var(--ink-faint);
  padding:.3rem .6rem;margin-bottom:.15rem;
}
.admin-sidebar-link{
  display:block;padding:.48rem .6rem .48rem 2.25rem;border-radius:var(--r-md);
  font-size:.87rem;color:var(--ink-soft);
}
.admin-sidebar-link:hover{background:var(--paper-alt);color:var(--feature);text-decoration:none}

.admin-nav-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:1rem;margin:0 0 2rem}
.admin-nav-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:1.2rem 1.3rem;box-shadow:var(--shadow-sm);transition:box-shadow .15s ease,border-color .15s ease;
}
.admin-nav-card:hover{box-shadow:var(--shadow-md);border-color:var(--feature-line)}
.admin-nav-card-icon{
  display:inline-flex;align-items:center;justify-content:center;width:2.2rem;height:2.2rem;
  border-radius:var(--r-md);background:var(--feature-soft);color:var(--feature);margin-bottom:.8rem;
}
.admin-nav-card h2{font-size:.95rem;margin:0 0 .6rem;letter-spacing:0}
.admin-nav-card a{display:block;font-size:.87rem;color:var(--ink-soft);padding:.25rem 0}
.admin-nav-card a:hover{color:var(--feature);text-decoration:none}

.docs-body{max-width:44rem}
.docs-body h1{font-size:1.6rem;margin-top:.6rem}
.docs-body h2{border-top:1px solid var(--line);padding-top:1.6rem}
.docs-body h2:first-of-type{border-top:none;padding-top:0}
.docs-body h3{font-family:var(--sans);font-weight:600;font-size:1rem;margin:1.4rem 0 .5rem}
.docs-body p, .docs-body ul, .docs-body ol{color:var(--ink-soft);margin:0 0 1rem}
.docs-body strong{color:var(--ink)}
.docs-body ul, .docs-body ol{padding-left:1.3rem}
.docs-body li{margin-bottom:.35rem}
.docs-body li > p{margin-bottom:.35rem}
.docs-body code{background:var(--paper-alt);border-radius:var(--r-sm);padding:.1rem .35rem}
.docs-body pre{
  background:var(--ink);color:var(--paper);border-radius:var(--r-md);padding:1rem 1.2rem;
  overflow-x:auto;font-size:.82rem;line-height:1.6;margin:0 0 1.4rem;
}
.docs-body pre code{background:none;padding:0;color:inherit}
.docs-body table{display:block;overflow-x:auto;margin-bottom:1.6rem}
.docs-body th,.docs-body td{padding:.55rem .9rem}

.banner{border-radius:var(--r-lg);padding:.9rem 1.2rem;margin:0 0 1.6rem;font-size:.9rem;border:1px solid;background:var(--paper)}
.banner.gate{background:var(--gate-soft);border-color:var(--gate-line)}
.banner.feature{background:var(--feature-soft);border-color:var(--feature-line)}
.banner.llm{background:var(--llm-soft);border-color:var(--llm-line)}

.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);padding:1.4rem 1.6rem;box-shadow:var(--shadow-sm)}
.dropzone{
  border:1px solid var(--line);border-radius:var(--r-lg);padding:2.4rem;text-align:center;
  background:var(--paper-raised);box-shadow:var(--shadow-sm);
}
.dropzone input[type=file]{margin:1rem 0}
button, input[type=submit]{
  font-family:var(--sans);font-weight:600;font-size:.9rem;background:var(--feature);color:#fff;
  border:none;border-radius:var(--r-lg);padding:.62rem 1.35rem;cursor:pointer;box-shadow:var(--shadow-glow);
}
button:hover, input[type=submit]:hover{opacity:.92}
button.secondary{background:var(--paper);color:var(--feature);border:1px solid var(--feature-line);box-shadow:var(--shadow-sm)}
select, input[type=text], input[type=password]{
  font-family:var(--sans);font-size:.9rem;padding:.55rem .8rem;border:1px solid var(--line);
  border-radius:var(--r-lg);background:var(--paper);color:var(--ink);box-shadow:var(--shadow-sm);
}

.auth-wrap{max-width:22rem;margin:4rem auto 0}
.auth-wrap h1{font-size:1.4rem;margin-bottom:1.4rem}
.auth-wrap label{display:block;margin-bottom:.3rem;font-size:.88rem}
.auth-wrap input{width:100%;margin-bottom:1rem}
.auth-wrap button{width:100%}

.table-wrap{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-md);overflow:hidden;overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.87rem}
th,td{padding:.7rem 1.1rem;text-align:left;border-bottom:1px solid var(--line)}
th{font-family:var(--mono);font-size:.65rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-faint);font-weight:500}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--paper-raised)}
td.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

.pill{display:inline-block;font-family:var(--mono);font-size:.73rem;padding:.15rem .6rem;border-radius:var(--r-lg)}
.pill.auto{background:var(--ok-soft);color:var(--ok)}
.pill.pending{background:var(--gate-soft);color:var(--gate)}
.pill.reviewed{background:var(--feature-soft);color:var(--feature)}
.pill.method-24b, .pill.method-3b{background:var(--llm-soft);color:var(--llm)}
.pill.method-retrieval{background:var(--feature-soft);color:var(--feature)}
.pill.method-unclassified{background:var(--gate-soft);color:var(--gate)}

.stat-strip{display:flex;gap:1rem;flex-wrap:wrap;margin:1rem 0 2rem}
.stat{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);padding:1rem 1.3rem;font-family:var(--mono);box-shadow:var(--shadow-sm)}
.stat b{display:block;font-size:1.4rem;font-weight:600}
.stat span{font-size:.72rem;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.05em;font-family:var(--sans)}

.page-thumbs{display:flex;gap:.8rem;flex-wrap:wrap;margin:1rem 0}
.page-thumbs img{border:1px solid var(--line);border-radius:var(--r-md);max-height:340px;background:#fff;box-shadow:var(--shadow-sm)}

.review-form{display:flex;gap:.6rem;align-items:center;margin-top:1rem;flex-wrap:wrap}

.progress-list{list-style:none;padding:0;margin:0}
.progress-list li{padding:.4rem 0;border-bottom:1px solid var(--line-soft);font-size:.88rem;display:flex;justify-content:space-between}

.muted{color:var(--ink-faint);font-size:.85rem}
.spinner{display:inline-block;width:.8em;height:.8em;border:2px solid var(--line);border-top-color:var(--feature);
  border-radius:50%;animation:spin .7s linear infinite;margin-right:.4em}
@keyframes spin{to{transform:rotate(360deg)}}