:root {
  --bg:       #F4F5F7;
  --surface:  #FFFFFF;
  --border:   #E2E5EB;
  --border2:  #C8CEDB;
  --text1:    #0D1117;
  --text2:    #5A6478;
  --text3:    #9AA3B5;
  --blue:     #1756A9;
  --blue-lt:  #E8F0FC;
  --green:    #2E6B18;
  --green-lt: #EAF3E0;
  --amber:    #7A4800;
  --amber-lt: #FEF3DC;
  --red:      #8B1A1A;
  --red-lt:   #FDEAEA;
  --purple:   #4C2885;
  --purple-lt:#EDE8FA;
  --shadow:   0 1px 4px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.04);
  --radius:   10px;
  --radius-sm:6px;
  --font:     'IBM Plex Sans Arabic', 'IBM Plex Sans', sans-serif;
  --mono:     'JetBrains Mono', monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text1);min-height:100vh;font-size:14px;line-height:1.5}
html[dir="ltr"] body{font-family:'IBM Plex Sans',system-ui,sans-serif}

/* ── LOGIN ── */
#login-screen{position:fixed;inset:0;background:linear-gradient(135deg,#0D1117 0%,#1A2235 60%,#0F1923 100%);display:flex;align-items:center;justify-content:center;z-index:1000}
.login-box{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:2.5rem 2rem;width:360px;backdrop-filter:blur(20px)}
.login-lang-row{display:flex;justify-content:center;margin-bottom:1.25rem}
.login-logo{text-align:center;font-size:2.5rem;margin-bottom:.5rem}
.login-title{text-align:center;color:#fff;font-size:18px;font-weight:600;margin-bottom:.25rem}
.login-sub{text-align:center;color:rgba(255,255,255,.45);font-size:12px;margin-bottom:2rem}
.login-label{color:rgba(255,255,255,.6);font-size:12px;margin-bottom:6px;display:block}
.login-input{width:100%;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:10px 14px;color:#fff;font-size:13px;font-family:var(--font);margin-bottom:14px;outline:none;transition:border .2s}
.login-input:focus{border-color:rgba(255,255,255,.35)}
.login-btn{width:100%;background:var(--blue);color:#fff;border:none;border-radius:8px;padding:11px;font-size:14px;font-weight:600;font-family:var(--font);cursor:pointer;transition:background .2s;margin-top:4px}
.login-btn:hover{background:#0d3f84}
.login-error{background:rgba(255,80,80,.12);border:1px solid rgba(255,80,80,.25);color:#ff8080;font-size:12px;border-radius:6px;padding:8px 12px;margin-bottom:12px;display:none;text-align:center}
.login-accounts{margin-top:1.5rem;border-top:1px solid rgba(255,255,255,.08);padding-top:1rem}
.login-accounts-title{color:rgba(255,255,255,.3);font-size:11px;text-align:center;margin-bottom:.75rem}
.login-account-list{display:flex;flex-direction:column;gap:6px}
.login-account-item{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);border-radius:6px;padding:7px 10px;cursor:pointer;transition:background .15s;display:flex;align-items:center;gap:8px}
.login-account-item:hover{background:rgba(255,255,255,.09)}
.login-account-badge{font-size:10px;padding:2px 7px;border-radius:20px;font-weight:600}
.badge-super{background:rgba(220,60,60,.2);color:#ff8080}
.badge-admin{background:rgba(70,120,255,.2);color:#80aaff}
.badge-viewer{background:rgba(100,200,100,.15);color:#80cc80}
.login-account-name{color:rgba(255,255,255,.7);font-size:12px}

#header-logo{width:70px;}

/* language switcher */
.lang-switch{display:flex;gap:4px;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:3px}
.lang-switch--dark{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12)}
.lang-switch button{border:none;background:transparent;color:var(--text2);font-size:11px;font-weight:600;padding:5px 10px;border-radius:6px;cursor:pointer;font-family:var(--font);transition:all .15s}
.lang-switch--dark button{color:rgba(255,255,255,.55)}
.lang-switch button.active{background:var(--blue);color:#fff}
.lang-switch--dark button.active{background:rgba(255,255,255,.18);color:#fff}

/* ── APP ── */
#app-screen{display:none;min-height:100vh}
.topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:.75rem 1.5rem;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;box-shadow:0 1px 6px rgba(0,0,0,.06)}
.topbar-brand{display:flex;align-items:center;gap:10px}
.topbar-logo{font-size:1.4rem}
.topbar-title{font-size:15px;font-weight:700;color:var(--text1)}
.topbar-sub{font-size:11px;color:var(--text3)}
.topbar-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.user-pill{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--border);border-radius:20px;padding:5px 12px 5px 8px;font-size:12px}
.user-avatar{width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff}
.avatar-super{background:#cc3333}
.avatar-admin{background:#1756A9}
.avatar-viewer{background:#2E6B18}
.logout-btn{background:none;border:1px solid var(--border);border-radius:6px;padding:5px 10px;font-size:12px;cursor:pointer;color:var(--text2);font-family:var(--font);transition:all .15s}
.logout-btn:hover{background:var(--red-lt);color:var(--red);border-color:var(--red)}

.undo-bar{background:#1756A9;color:#fff;padding:10px 1.5rem;display:flex;align-items:center;justify-content:space-between;font-size:13px;gap:1rem}
.undo-bar button{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:6px;padding:5px 14px;font-size:12px;cursor:pointer;font-family:var(--font);transition:background .15s}
.undo-bar button:hover{background:rgba(255,255,255,.28)}
#undo-bar-wrap{display:none}

.app-body{padding:1.25rem 1.5rem;max-width:940px;margin:0 auto}

.tabs{display:flex;gap:2px;margin-bottom:1.5rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:4px;box-shadow:var(--shadow);flex-wrap:wrap}
.tab{font-size:12.5px;padding:7px 14px;border:none;background:none;cursor:pointer;color:var(--text2);border-radius:7px;font-family:var(--font);font-weight:500;transition:all .15s;white-space:nowrap}
.tab.active{background:var(--blue);color:#fff;box-shadow:0 2px 8px rgba(23,86,169,.35)}
.tab:hover:not(.active){background:var(--bg);color:var(--text1)}
.tab.disabled{opacity:.4;cursor:not-allowed;pointer-events:none}

.section{display:none}
.section.active{display:block}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-bottom:1.5rem}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;text-align:center;box-shadow:var(--shadow)}
.card-label{font-size:11px;color:var(--text3);margin-bottom:6px;font-weight:500;text-transform:uppercase;letter-spacing:.5px}
.card-val{font-size:22px;font-weight:700;color:var(--text1);font-family:var(--mono)}
.card-val.blue{color:var(--blue)}
.card-val.green{color:var(--green)}
.card-val.amber{color:var(--amber)}
.card-val.red{color:var(--red)}
.card-val.purple{color:var(--purple)}

.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1rem;box-shadow:var(--shadow)}
.panel-title{font-size:13px;font-weight:600;color:var(--text1);margin-bottom:1rem;display:flex;align-items:center;gap:6px}
.panel-title .icon{color:var(--text3);font-size:15px}

label{font-size:12px;color:var(--text2);display:block;margin-bottom:4px;font-weight:500}
input[type=number],input[type=text],input[type=password],select{width:100%;padding:8px 11px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;background:var(--bg);color:var(--text1);margin-bottom:12px;font-family:var(--font);outline:none;transition:border .15s,box-shadow .15s}
input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,86,169,.1);background:var(--surface)}

.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}

button.primary{background:var(--blue);color:#fff;border:none;border-radius:var(--radius-sm);padding:9px 20px;font-size:13px;cursor:pointer;font-weight:600;font-family:var(--font);transition:all .15s;box-shadow:0 2px 8px rgba(23,86,169,.3)}
button.primary:hover{background:#0d3f84;box-shadow:0 3px 12px rgba(23,86,169,.4)}
button.primary:disabled{background:var(--text3);box-shadow:none;cursor:not-allowed}
button.secondary{background:none;border:1px solid var(--border2);color:var(--text2);border-radius:var(--radius-sm);padding:7px 14px;font-size:12px;cursor:pointer;font-family:var(--font);transition:all .15s}
button.secondary:hover{background:var(--bg);color:var(--text1)}
button.danger{background:none;border:1px solid var(--border);color:var(--text3);border-radius:var(--radius-sm);padding:6px 12px;font-size:12px;cursor:pointer;font-family:var(--font);transition:all .15s}
button.danger:hover{background:var(--red-lt);color:var(--red);border-color:var(--red)}

table{width:100%;border-collapse:collapse;font-size:12px}
th{background:var(--bg);padding:9px 10px;text-align:right;font-weight:600;font-size:11px;color:var(--text2);border-bottom:1px solid var(--border);text-transform:uppercase;letter-spacing:.4px}
html[dir="ltr"] th{text-align:left}
td{padding:9px 10px;border-bottom:1px solid var(--border);color:var(--text1);vertical-align:middle}
tr:last-child td{border-bottom:none}
tr:hover td{background:#FAFBFD}

.badge{display:inline-flex;align-items:center;padding:2px 9px;border-radius:20px;font-size:11px;font-weight:600;white-space:nowrap}
.badge-blue{background:var(--blue-lt);color:var(--blue)}
.badge-green{background:var(--green-lt);color:var(--green)}
.badge-amber{background:var(--amber-lt);color:var(--amber)}
.badge-red{background:var(--red-lt);color:var(--red)}
.badge-purple{background:var(--purple-lt);color:var(--purple)}
.badge-gray{background:var(--bg);color:var(--text2);border:1px solid var(--border)}

.bar-wrap{background:var(--bg);border-radius:4px;height:7px;width:100%;overflow:hidden;min-width:70px;border:1px solid var(--border)}
.bar-inner{height:100%;border-radius:4px;background:var(--blue);transition:width .4s}
.bar-warn{background:#EF9F27}
.bar-danger{background:#E24B4A}

.info-box{background:var(--blue-lt);border:1px solid #BDD3F5;border-radius:var(--radius-sm);padding:10px 14px;font-size:12px;color:var(--blue);margin-bottom:1rem;display:flex;align-items:flex-start;gap:6px}
.warn-box{background:var(--amber-lt);border:1px solid #F0D090;border-radius:var(--radius-sm);padding:10px 14px;font-size:12px;color:var(--amber);margin-bottom:1rem;display:none;align-items:flex-start;gap:6px}
.error-box{background:var(--red-lt);border:1px solid #F5BBBB;border-radius:var(--radius-sm);padding:10px 14px;font-size:12px;color:var(--red);margin-bottom:1rem;display:none}

.empty{text-align:center;color:var(--text3);font-size:13px;padding:2.5rem;display:flex;flex-direction:column;align-items:center;gap:8px}
.empty .empty-icon{font-size:2rem;opacity:.5}

.act-row{display:flex;gap:8px;align-items:flex-end;margin-bottom:12px;flex-wrap:wrap}
.act-row>div{flex:1;min-width:120px}
.act-row>div:last-child{flex:0 0 auto}

.audit-chip{font-family:var(--mono);font-size:10.5px;background:var(--bg);border:1px solid var(--border);border-radius:4px;padding:1px 6px;color:var(--text3)}

.permission-denied{display:flex;align-items:center;gap:8px;background:var(--amber-lt);border:1px solid #F0D090;border-radius:var(--radius-sm);padding:12px 16px;font-size:13px;color:var(--amber);margin-bottom:1rem}

.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:500;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(3px)}
.modal-box{background:var(--surface);border-radius:12px;padding:1.75rem;width:380px;box-shadow:0 16px 48px rgba(0,0,0,.2)}
.modal-title{font-size:15px;font-weight:700;margin-bottom:.5rem;display:flex;align-items:center;gap:8px}
.modal-body{font-size:13px;color:var(--text2);margin-bottom:1.5rem;line-height:1.6}
.modal-actions{display:flex;gap:8px;justify-content:flex-end}
html[dir="ltr"] .modal-actions{justify-content:flex-start}

.toast{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%) translateY(80px);background:var(--text1);color:#fff;border-radius:8px;padding:10px 20px;font-size:13px;z-index:999;transition:transform .3s ease,opacity .3s;opacity:0;pointer-events:none;white-space:nowrap}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}
.toast.success{background:#2E6B18}
.toast.error{background:var(--red)}

.export-row{display:flex;gap:8px;margin-bottom:1rem;flex-wrap:wrap}

.admin-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem 1.25rem;display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;box-shadow:var(--shadow)}
.admin-info{display:flex;align-items:center;gap:10px}
.admin-avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#fff;flex-shrink:0}
.admin-name{font-weight:600;font-size:13px}
.admin-sub{font-size:11px;color:var(--text3)}

.tag-super{background:#8B1A1A;color:#fff}
.tag-admin{background:var(--blue);color:#fff}
.tag-viewer{background:var(--green);color:#fff}

.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.section-header h2{font-size:14px;font-weight:700;color:var(--text1)}