:root{
  --green:#0f9d58;
  --green-dark:#0b8043;
  --bg:#f8f9fa;
  --panel:#ffffff;
  --border:#e0e0e0;
  --text:#3c4043;
  --text-muted:#5f6368;
  --hover:#f1f3f4;
  --radius:10px;
  --shadow:0 1px 2px 0 rgba(60,64,67,.3),0 1px 3px 1px rgba(60,64,67,.15);
}
*{box-sizing:border-box;}
html,body{width:100%;max-width:100%;overflow-x:hidden;}
body{margin:0;font-family:"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.45;}
button,input,select,textarea{font:inherit;}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid rgba(15,157,88,.22);outline-offset:2px;}
.hidden{display:none!important;}
h1,h2,h3,h4{margin:0 0 8px;}
.muted{color:var(--text-muted);font-size:13px;}

.center-screen{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:var(--bg);padding:16px;}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:32px;width:420px;max-width:100%;box-shadow:var(--shadow);}
.card label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:14px;}
.card input,.card textarea{width:100%;margin-top:4px;padding:9px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit;}
.btn-primary{background:var(--green);color:#fff;border:none;padding:10px 16px;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;}
.btn-primary:hover{background:var(--green-dark);}
.btn-primary.small{padding:7px 14px;font-size:13px;}
.error{color:#d93025;font-size:13px;margin-top:10px;}
.back-link{display:block;margin-top:14px;font-size:12px;color:var(--green-dark);text-decoration:none;}

.dashboard{display:flex;flex-direction:column;width:100%;height:100vh;overflow:hidden;}
.admin-topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:var(--panel);border-bottom:1px solid var(--border);flex-wrap:wrap;gap:10px;}
.admin-brand{font-size:16px;font-weight:600;}
.admin-topbar-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.whoami{font-size:12.5px;color:var(--text-muted);}
.btn-ghost{background:none;border:1px solid var(--border);border-radius:18px;padding:7px 14px;font-size:12.5px;cursor:pointer;color:var(--text);text-decoration:none;}
.btn-ghost:hover{background:var(--hover);}
.btn-ghost.small{padding:6px 12px;font-size:12px;}
.btn-ghost.danger{color:#c5221f;border-color:#f2c1bd;}
.btn-ghost.danger:hover{background:#fce8e6;}

.admin-body{flex:1;display:flex;min-width:0;overflow:hidden;}
.admin-tabs{width:210px;flex:0 0 210px;background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:14px 8px;}
.tab-btn{display:block;width:100%;text-align:left;padding:10px 14px;border:none;background:none;border-radius:0 20px 20px 0;font-size:13.5px;cursor:pointer;color:var(--text);}
.tab-btn:hover{background:var(--hover);}
.tab-btn.active{background:#e6f4ea;color:var(--green-dark);font-weight:600;}

.admin-panel{flex:1;min-width:0;overflow-x:hidden;overflow-y:auto;padding:28px 32px 80px;scroll-behavior:smooth;}
.tab-content h2{font-size:18px;margin-bottom:16px;}
.section-intro{max-width:720px;margin:-10px 0 20px;color:var(--text-muted);font-size:13px;}
.table-wrap{width:100%;margin-bottom:24px;overflow-x:auto;border:1px solid var(--border);border-radius:10px;background:var(--panel);}

.admin-table{width:100%;border-collapse:collapse;background:var(--panel);}
.admin-table th,.admin-table td{padding:10px 14px;text-align:left;font-size:13px;border-bottom:1px solid var(--border);}
.admin-table th{background:var(--hover);color:var(--text-muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em;}
.admin-table tr:last-child td{border-bottom:none;}
.admin-table button{background:none;border:1px solid var(--border);border-radius:14px;padding:4px 10px;font-size:11.5px;cursor:pointer;margin-right:6px;}
.admin-table button:hover{background:var(--hover);}
.admin-table button.danger{color:#d93025;border-color:#f2c1bd;}

.form-inline{display:flex;align-items:end;gap:12px;flex-wrap:wrap;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:18px;}
.form-inline h3{width:100%;font-size:14px;margin-bottom:8px;}
.form-inline label{display:flex;flex:1;min-width:180px;flex-direction:column;gap:5px;color:var(--text-muted);font-size:12px;}
.form-inline input{width:100%;min-width:0;padding:9px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;}
.permission-form label:first-of-type{flex:1 1 320px;}

.form-block{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:22px;margin-top:10px;}
.form-block label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:14px;}
.form-block input,.form-block textarea{width:100%;margin-top:4px;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;font-family:inherit;}
.form-block h4{font-size:13px;margin:16px 0 8px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;}

.perms-list{display:flex;flex-direction:column;gap:6px;margin-bottom:10px;}
.perm-row{display:flex;align-items:center;gap:10px;background:var(--hover);border-radius:6px;padding:6px 10px;font-size:12.5px;}
.perm-row .perm-badge{background:var(--green);color:#fff;border-radius:4px;padding:2px 8px;font-weight:600;font-size:11px;}
.perm-row .perm-subjects{flex:1;}
.perm-row button{background:none;border:none;color:#d93025;cursor:pointer;font-size:12px;}

.permissions-catalog{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(280px,100%),1fr));gap:8px;margin-bottom:10px;}
.permission-item{display:flex!important;align-items:center;gap:9px;margin:0!important;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--hover);cursor:pointer;}
.permission-item:has(input:checked){border-color:#a8dabd;background:#f2faf5;}
.permission-item input[type=checkbox]{width:18px;height:18px;margin:0;flex:0 0 18px;accent-color:var(--green);}
.permission-key{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:24px;border-radius:5px;background:var(--panel);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-weight:700;color:var(--text);}
.permission-description{color:var(--text);font-size:12px;line-height:1.35;}

.flags-catalog{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(280px,100%),1fr));gap:10px;margin-bottom:14px;}
.flag-item{display:flex;min-width:0;flex-direction:column;justify-content:space-between;gap:10px;background:var(--hover);border:1px solid transparent;border-radius:8px;padding:12px;font-size:12px;}
.flag-item:has(input:checked){border-color:#a8dabd;background:#f2faf5;}
.flag-control{display:flex;align-items:center;gap:9px;min-width:0;}
.flag-control input[type=checkbox]{width:18px;height:18px;flex:0 0 18px;accent-color:var(--green);}
.flag-item input[type=text]{flex:1;min-width:0;padding:6px 8px;font-size:12px;border:1px solid var(--border);border-radius:5px;background:var(--panel);}
.flag-item .flag-label{font-weight:500;}
.flag-item .flag-warning{color:#b05a00;font-size:10.5px;display:block;}

.volumes-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.volume-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px;}
.volume-card .v-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;}
.volume-card .v-urlpath{font-weight:600;font-size:14px;}
.volume-card .v-fspath{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;color:var(--text-muted);overflow-wrap:anywhere;margin-bottom:8px;}
.volume-card .v-tags{display:flex;gap:6px;flex-wrap:wrap;}
.volume-card .v-tag{background:var(--hover);border-radius:12px;padding:3px 10px;font-size:11px;color:var(--text-muted);}
.volume-card .v-actions{display:flex;gap:6px;}
.volume-card .v-actions button{margin:0;}

.global-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(520px,100%),1fr));gap:12px;margin-bottom:20px;}
.global-field{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:14px 16px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.global-field .gf-label{flex:1;min-width:220px;font-size:13px;}
.global-field .gf-cat{display:block;font-size:10.5px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;}
.global-field .gf-warning{display:block;color:#b05a00;font-size:11px;margin-top:3px;}
.global-field input[type=text],.global-field select{width:min(260px,100%);min-width:0;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;background:var(--panel);}
.global-field input[type=checkbox]{width:20px;height:20px;accent-color:var(--green);}
.form-actions{position:sticky;bottom:-1px;z-index:10;display:flex;gap:10px;justify-content:flex-end;margin:22px -8px -14px;padding:14px 8px;background:linear-gradient(to bottom,rgba(248,249,250,.8),var(--bg) 35%);}

.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#323232;color:#fff;padding:10px 20px;border-radius:6px;font-size:13px;z-index:200;box-shadow:var(--shadow);max-width:90vw;}

@media (max-width: 900px){
  .admin-topbar{padding:10px 16px;}
  .admin-body{flex-direction:column;}
  .admin-tabs{width:100%;flex:0 0 auto;flex-direction:row;gap:4px;overflow-x:auto;border-right:none;border-bottom:1px solid var(--border);padding:8px;scrollbar-width:none;}
  .admin-tabs::-webkit-scrollbar{display:none;}
  .tab-btn{width:auto;min-height:40px;border-radius:20px;padding:9px 14px;white-space:nowrap;}
  .admin-panel{padding:16px;}
}

@media (max-width: 640px){
  .center-screen{align-items:flex-start;overflow-y:auto;}
  .card{padding:24px 20px;box-shadow:none;}
  .admin-topbar{align-items:flex-start;}
  .admin-brand{width:100%;}
  .admin-topbar-actions{width:100%;gap:6px;}
  .whoami{flex:1;min-width:100%;}
  .admin-topbar-actions .btn-ghost{flex:1;padding:8px 10px;text-align:center;white-space:nowrap;}
  .admin-panel{padding:18px 12px 76px;}
  .tab-content h2{font-size:20px;}
  .form-block{padding:16px 12px;}
  .form-inline{padding:14px 12px;}
  .form-inline label,.permission-form label:first-of-type{flex:1 1 100%;}
  .form-inline > button{width:100%;min-height:42px;}
  .admin-table thead{display:none;}
  .admin-table,.admin-table tbody,.admin-table tr,.admin-table td{display:block;width:100%;}
  .admin-table tr{padding:10px 12px;border-bottom:1px solid var(--border);}
  .admin-table tr:last-child{border-bottom:none;}
  .admin-table td{display:grid;grid-template-columns:minmax(80px,32%) 1fr;gap:10px;padding:6px 0;border:0;overflow-wrap:anywhere;}
  .admin-table td::before{content:attr(data-label);color:var(--text-muted);font-size:11px;font-weight:600;text-transform:uppercase;}
  .admin-table td:last-child{display:flex;flex-wrap:wrap;padding-top:10px;}
  .admin-table td:last-child::before{width:100%;}
  .admin-table button{min-height:36px;margin:4px 6px 0 0;}
  .volume-card .v-head{align-items:flex-start;gap:10px;}
  .volume-card .v-actions{flex-wrap:wrap;justify-content:flex-end;}
  .volume-card .v-actions button{min-height:36px;padding:6px 10px;}
  .perm-row{align-items:flex-start;flex-wrap:wrap;}
  .perm-row .perm-subjects{min-width:0;overflow-wrap:anywhere;}
  .global-field{align-items:flex-start;padding:14px 12px;}
  .global-field .gf-label{min-width:100%;}
  .global-field input[type=text],.global-field select{width:100%;}
  .global-field input[type=checkbox]{margin-left:auto;}
  .form-actions{justify-content:stretch;margin-left:-4px;margin-right:-4px;}
  .form-actions button{flex:1;min-height:44px;}
  .toast{bottom:12px;width:calc(100% - 24px);text-align:center;}
}