:root{
  --bg:#F7F9FA;--surface:#FFFFFF;--surface2:#E2E8F0;--border:#CBD5E1;
  --accent:#910000;--accent2:#7A0000;--text:#0F172A;--muted:#475569;
  --danger:#E05C5C;--success:#3ECF8E;--warn:#F5A623;
  --radius:10px;--font:'Inter',sans-serif;--display:'Space Grotesk',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;min-height:100vh}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

/* NAV */
nav{background:var(--surface);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 32px;height:58px;position:sticky;top:0;z-index:100}
.nav-brand{font-family:var(--display);font-size:17px;font-weight:700;color:var(--text);
  display:flex;align-items:center;gap:10px}
.nav-brand span{background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a,.nav-links button{background:none;border:none;cursor:pointer;font:inherit;
  font-size:13px;color:var(--muted);padding:6px 12px;border-radius:6px;transition:.15s}
.nav-links a:hover,.nav-links button:hover{background:var(--surface2);color:var(--text);text-decoration:none}
.nav-links a.active{color:var(--accent)}
.nav-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover;margin-left:4px}
.nav-user{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);
  padding:4px 10px;background:var(--surface2);border-radius:20px;border:1px solid var(--border)}
.role-badge{font-size:10px;font-weight:700;padding:2px 7px;border-radius:20px;
  text-transform:uppercase;letter-spacing:.04em}
.role-admin   {background:rgba(245,166,35,.2);color:var(--warn)}
.role-uploader{background:rgba(79,125,255,.2);color:#82a4ff}
.role-viewer  {background:rgba(123,130,160,.15);color:var(--muted)}
.nav-logo{
  width:48px;
  height:48px;
  object-fit:contain;
}

/* LAYOUT */
.container{max-width:1200px;margin:0 auto;padding:32px 24px}
.page-header{margin-bottom:28px}
.page-header h1{font-family:var(--display);font-size:24px;font-weight:700}
.page-header p{color:var(--muted);margin-top:4px}

/* CARD */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}

/* FORM */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group.full{grid-column:1/-1}
label{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
input[type=text],input[type=email],input[type=password],input[type=search],select,textarea{
  background:var(--surface2);border:1px solid var(--border);border-radius:7px;
  color:var(--text);font:inherit;font-size:14px;padding:9px 12px;
  transition:border-color .15s;outline:none;width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
textarea{resize:vertical;min-height:80px}
select option{background:var(--surface2)}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:7px;font:inherit;font-size:13px;
  font-weight:600;padding:9px 18px;border-radius:7px;border:none;cursor:pointer;
  transition:.15s;text-decoration:none;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#3a68e8;color:#fff}
.btn-ghost{background:var(--surface2);color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-danger{background:rgba(224,92,92,.15);color:var(--danger);border:1px solid rgba(224,92,92,.3)}
.btn-danger:hover{background:var(--danger);color:#fff}
.btn-sm{padding:5px 12px;font-size:12px}

/* ALERT */
.alert{padding:12px 16px;border-radius:7px;font-size:13px;margin-bottom:20px}
.alert-success{background:rgba(62,207,142,.12);border:1px solid rgba(62,207,142,.3);color:var(--success)}
.alert-error  {background:rgba(224,92,92,.12); border:1px solid rgba(224,92,92,.3); color:var(--danger)}
.alert-info   {background:rgba(79,125,255,.12);border:1px solid rgba(79,125,255,.3);color:var(--accent)}

/* SEARCH BAR */
.search-bar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:20px}
.search-bar input{max-width:260px}
.search-bar select{width:auto}
.spacer{flex:1}

/* DOC GRID (card view) */
.doc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.doc-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;transition:.15s;display:flex;flex-direction:column;gap:12px}
.doc-card:hover{border-color:var(--accent)}
.doc-card-title{font-weight:600;font-size:15px;line-height:1.3}
.doc-card-desc{color:var(--muted);font-size:13px;line-height:1.5;flex:1}
.doc-meta{display:flex;flex-wrap:wrap;gap:6px}
.doc-footer{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}
.doc-actions{display:flex;gap:6px}

/* DOC LIST (list view — default) */
.doc-list{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.doc-list-header{display:grid;grid-template-columns:32px 1fr 120px 110px 110px 80px 130px 130px;
  gap:0;padding:9px 16px;border-bottom:1px solid var(--border);
  font-size:11px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.doc-list-header .col-sortable{cursor:pointer;user-select:none;display:flex;align-items:center;gap:4px}
.doc-list-header .col-sortable:hover{color:var(--text)}
.doc-list-header .sort-active{color:var(--accent)}
.doc-list-row{display:grid;grid-template-columns:32px 1fr 120px 110px 110px 80px 130px 130px;
  gap:0;padding:11px 16px;border-bottom:1px solid var(--border);align-items:center;
  transition:background .1s}
.doc-list-row:last-child{border-bottom:none}
.doc-list-row:hover{background:var(--surface2)}
.doc-list-title{font-weight:500;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.doc-list-fname{font-size:11px;color:var(--muted);margin-top:2px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.doc-list-actions{display:flex;gap:5px;justify-content:flex-end}

/* VIEW TOGGLE */
.view-toggle{display:flex;background:var(--surface2);border:1px solid var(--border);
  border-radius:7px;overflow:hidden}
.view-toggle button{background:none;border:none;cursor:pointer;padding:6px 11px;
  font-size:15px;color:var(--muted);transition:.15s;line-height:1}
.view-toggle button.active{background:var(--accent);color:#fff}
.view-toggle button:hover:not(.active){color:var(--text)}

.tag{font-size:11px;font-weight:600;padding:3px 9px;border-radius:20px;
  text-transform:uppercase;letter-spacing:.04em}
.tag-dept{background:rgba(79,125,255,.18);color:#82a4ff}
.tag-type{background:rgba(124,92,252,.18);color:#a97fff}
.tag-cat {background:rgba(62,207,142,.15); color:#4ecb95}
.file-icon{font-size:18px;line-height:1}

/* INLINE VIEW BANNER */
.view-banner{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);
  padding:10px 16px;font-size:13px;color:var(--muted);margin-bottom:16px;
  display:flex;align-items:center;gap:10px}
.view-banner a{color:var(--accent)}

/* PAGINATION */
.pagination{display:flex;gap:6px;align-items:center;justify-content:center;margin-top:28px}
.pagination a,.pagination span{padding:7px 13px;border-radius:7px;font-size:13px;font-weight:500;
  background:var(--surface);border:1px solid var(--border);color:var(--muted);text-decoration:none}
.pagination a:hover{border-color:var(--accent);color:var(--accent)}
.pagination .current{background:var(--accent);border-color:var(--accent);color:#fff}
.pagination .dots{border:none;background:none}

/* TABLE */
table{width:100%;border-collapse:collapse;font-size:13px}
th{text-align:left;padding:10px 12px;color:var(--muted);font-size:11px;
  text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border)}
td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--surface2)}

/* LOGIN */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:24px;background:radial-gradient(ellipse at 60% 40%,rgba(79,125,255,.07) 0%,transparent 60%)}
.login-box{width:100%;max-width:420px}
.login-logo{text-align:center;margin-bottom:36px}
.login-logo .logo-icon{
  margin-bottom:12px;
}

.login-logo .logo-icon img{
  width:120px;
  height:120px;
  object-fit:contain;
}
.login-logo h1{font-family:var(--display);font-size:26px;font-weight:700}
.login-logo h1 span{background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent}
.login-logo p{color:var(--muted);margin-top:8px;font-size:14px}
.domain-chips{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:10px}
.domain-chip{background:var(--surface2);border:1px solid var(--border);
  border-radius:20px;padding:3px 10px;font-size:12px;color:var(--muted)}
.google-btn-wrap{display:flex;justify-content:center;margin:8px 0}
.divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px;margin:20px 0}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--border)}
.setup-notice{background:rgba(245,166,35,.1);border:1px solid rgba(245,166,35,.3);
  border-radius:7px;padding:12px 16px;font-size:13px;color:var(--warn);margin-bottom:20px}

/* STATS */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:24px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px}
.stat-val{font-family:var(--display);font-size:30px;font-weight:700}
.stat-label{color:var(--muted);font-size:12px;margin-top:2px}

/* TABS */
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--border);margin-bottom:24px}
.tab{padding:10px 16px;font-size:13px;font-weight:500;color:var(--muted);
  cursor:pointer;border-bottom:2px solid transparent;transition:.15s}
.tab.active{color:var(--accent);border-bottom-color:var(--accent)}
.tab-content{display:none}
.tab-content.active{display:block}

/* UPLOAD ZONE */
.upload-zone{border:2px dashed var(--border);border-radius:var(--radius);
  padding:28px;text-align:center;cursor:pointer;transition:.15s}
.upload-zone:hover{border-color:var(--accent);background:rgba(79,125,255,.04)}
.upload-zone input[type=file]{display:none}
.upload-zone-icon{font-size:32px;margin-bottom:6px}

/* EMPTY */
.empty{text-align:center;padding:60px 20px;color:var(--muted)}
.empty-icon{font-size:48px;margin-bottom:12px}
.empty h3{font-size:16px;color:var(--text);margin-bottom:6px}

/* INLINE ROLE SELECT */
.role-select{background:var(--surface2);border:1px solid var(--border);border-radius:6px;
  color:var(--text);font:inherit;font-size:12px;padding:4px 8px;cursor:pointer}
.role-select:focus{border-color:var(--accent);outline:none}

@media(max-width:640px){
  nav{padding:0 16px}
  .container{padding:20px 16px}
  .form-grid{grid-template-columns:1fr}
  .doc-grid{grid-template-columns:1fr}
  .search-bar{flex-direction:column;align-items:stretch}
  .search-bar input,.search-bar select{max-width:100%;width:100%}
  .doc-list-header{display:none}
  .doc-list-row{grid-template-columns:28px 1fr auto;grid-template-rows:auto auto;gap:6px 8px;padding:12px}
  .doc-list-row>div:nth-child(3),
  .doc-list-row>div:nth-child(4),
  .doc-list-row>div:nth-child(5),
  .doc-list-row>div:nth-child(6),
  .doc-list-row>div:nth-child(7){display:none}
  .doc-list-row>div:nth-child(8){grid-column:3;grid-row:1/3}
}