:root {
  --bg:#F0F4FF; --sur:#fff; --sur2:#F8FAFF; --brd:#E4E9F8;
  --pri:#3B5BDB; --pri-l:#EEF2FF; --pri-d:#2F4AC7;
  --acc:#7048E8; --grn:#2F9E44; --grn-l:#EBFBEE;
  --amb:#E67700; --amb-l:#FFF3BF; --red:#C92A2A; --red-l:#FFF5F5;
  --tx:#1A1F36; --tx2:#4A5568; --tx3:#A0AEC0;
  --sh:0 2px 8px rgba(59,91,219,.08);
  --r:14px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Plus Jakarta Sans',sans-serif;background:var(--bg);color:var(--tx);height:100vh;display:flex;flex-direction:column;overflow:hidden;font-size:14px}

/* HEADER */
header{background:var(--sur);border-bottom:1px solid var(--brd);padding:0 18px;height:52px;display:flex;align-items:center;gap:10px;flex-shrink:0;box-shadow:var(--sh)}
.logo{width:32px;height:32px;background:linear-gradient(135deg,var(--pri),var(--acc));border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.brand{font-family:'Bricolage Grotesque',sans-serif;font-size:15px;font-weight:800}
.brand em{color:var(--pri);font-style:normal}
.hdr-r{margin-left:auto;display:flex;gap:6px;align-items:center}
.hbtn{padding:5px 11px;border-radius:8px;border:1px solid var(--brd);background:var(--sur);font-family:inherit;font-size:12px;font-weight:600;color:var(--tx2);cursor:pointer;transition:all .15s;display:flex;align-items:center;gap:4px}
.hbtn:hover{background:var(--pri-l);border-color:#C5D0FF;color:var(--pri)}
.hbtn.ok{background:var(--grn-l);border-color:#B2F2BB;color:var(--grn)}
.hbtn.warn{background:var(--amb-l);border-color:#FFD43B;color:var(--amb)}
.sync{display:flex;align-items:center;gap:5px;font-size:11px;font-weight:700;cursor:pointer}
.sdot{width:7px;height:7px;border-radius:50%;background:var(--tx3)}
.sdot.on{background:var(--grn);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* LAYOUT */
.app{display:flex;flex:1;overflow:hidden}

/* SIDEBAR */
.sb{width:260px;flex-shrink:0;background:var(--sur);border-right:1px solid var(--brd);display:flex;flex-direction:column;overflow:hidden}
.sb-hd{padding:12px 12px 5px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--tx3)}
.sb-list{flex:1;overflow-y:auto;padding:0 8px}
.sb-list::-webkit-scrollbar{width:3px}
.sb-list::-webkit-scrollbar-thumb{background:var(--brd);border-radius:99px}
.sc{display:flex;align-items:center;gap:8px;padding:7px 9px;border-radius:9px;cursor:pointer;transition:all .15s;border:1.5px solid transparent;margin-bottom:2px}
.sc:hover{background:var(--pri-l)}
.sc.hl{background:var(--pri-l);border-color:#C5D0FF}
.av{width:28px;height:28px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:11px;color:#fff;flex-shrink:0}
.sc-info .nm{font-size:12px;font-weight:700}
.sc-info .tg{font-size:10px;color:var(--tx3);margin-top:1px}
.pill{margin-left:auto;font-size:10px;font-weight:700;padding:2px 6px;border-radius:20px;flex-shrink:0}
.phi{background:var(--grn-l);color:var(--grn)}
.pmi{background:var(--amb-l);color:var(--amb)}
.plo{background:var(--red-l);color:var(--red)}
.pna{background:var(--bg);color:var(--tx3)}
.delbtn{background:none;border:none;cursor:pointer;color:var(--tx3);font-size:11px;opacity:0;padding:2px;border-radius:4px;transition:opacity .15s;flex-shrink:0}
.sc:hover .delbtn{opacity:1}
.delbtn:hover{color:var(--red)}
.add-btn{margin:5px 12px 10px;padding:7px 0;border:1.5px dashed var(--brd);border-radius:9px;background:transparent;cursor:pointer;font-family:inherit;font-size:12px;font-weight:700;color:var(--tx3);width:calc(100% - 24px);transition:all .15s;display:flex;align-items:center;justify-content:center;gap:4px}
.add-btn:hover{border-color:var(--pri);color:var(--pri);background:var(--pri-l)}
.sb-alerts{padding:8px 12px 12px;border-top:1px solid var(--brd)}
.al{display:flex;align-items:flex-start;gap:7px;padding:6px 8px;border-radius:8px;margin-bottom:4px;font-size:11px;cursor:pointer;border:1px solid;transition:opacity .15s}
.al:hover{opacity:.8}
.al.danger{background:var(--red-l);border-color:#FFC9C9;color:#862E2E}
.al.warning{background:var(--amb-l);border-color:#FFE066;color:#7A4F00}
.al.info{background:var(--pri-l);border-color:#C5D0FF;color:#2C3B8E}
.al.success{background:var(--grn-l);border-color:#B2F2BB;color:#1A6B2A}
.al-ico{font-size:13px;flex-shrink:0;margin-top:1px}
.al-tx b{display:block;font-weight:700;margin-bottom:1px}

/* CHAT */
.chat-wrap{flex:1;display:flex;flex-direction:column;overflow:hidden}
.chips{padding:9px 14px 0;display:flex;gap:6px;flex-wrap:wrap;flex-shrink:0}
.chip{padding:5px 12px;border-radius:20px;border:1.5px solid var(--brd);background:var(--sur);font-family:inherit;font-size:11px;font-weight:700;color:var(--tx2);cursor:pointer;transition:all .15s;white-space:nowrap}
.chip:hover{background:var(--pri);border-color:var(--pri);color:#fff;transform:translateY(-1px)}
.chip.grade{background:linear-gradient(135deg,#E64980,#C2255C);border-color:transparent;color:#fff}
.chip.grade:hover{opacity:.88;transform:translateY(-1px)}

/* MESSAGES */
.msgs{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:12px}
.msgs::-webkit-scrollbar{width:4px}
.msgs::-webkit-scrollbar-thumb{background:var(--brd);border-radius:99px}
.msg{display:flex;gap:9px;animation:fin .3s cubic-bezier(.16,1,.3,1)}
.msg.u{flex-direction:row-reverse}
@keyframes fin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.mav{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;margin-top:2px}
.msg.ai .mav{background:linear-gradient(135deg,var(--pri),var(--acc))}
.msg.u  .mav{background:linear-gradient(135deg,#20C997,#12B886)}
.mb{max-width:74%;padding:10px 14px;font-size:13.5px;line-height:1.72;border-radius:var(--r)}
.msg.ai .mb{background:var(--sur);border:1px solid var(--brd);border-bottom-left-radius:3px;box-shadow:var(--sh);color:var(--tx)}
.msg.u  .mb{background:linear-gradient(135deg,var(--pri),var(--acc));color:#fff;border-bottom-right-radius:3px}
.stu-tag{display:inline-flex;align-items:center;gap:4px;background:var(--pri-l);color:var(--pri);border:1px solid #C5D0FF;border-radius:20px;padding:1px 7px;font-size:11px;font-weight:700;cursor:pointer}
.stu-tag:hover{background:#C5D0FF}

/* GRADE RESULT CARD */
.grade-card{background:var(--sur);border:1.5px solid var(--brd);border-radius:12px;padding:13px 15px;border-left:4px solid var(--pri)}
.gc-head{display:flex;align-items:center;gap:9px;margin-bottom:9px}
.gc-score{font-family:'Bricolage Grotesque',sans-serif;font-size:28px;font-weight:800;margin-left:auto}
.gc-body{font-size:13px;line-height:1.75;white-space:pre-wrap}

/* TYPING */
.tdots{display:flex;gap:4px;padding:3px 2px;align-items:center}
.td{width:6px;height:6px;border-radius:50%;background:var(--pri);animation:td 1.2s ease-in-out infinite}
.td:nth-child(2){animation-delay:.2s;background:var(--acc)}
.td:nth-child(3){animation-delay:.4s;background:#9C6FE4}
@keyframes td{0%,80%,100%{transform:scale(.5);opacity:.3}40%{transform:scale(1);opacity:1}}

/* WELCOME */
.welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:36px 24px;gap:12px}
.welcome .wi{font-size:52px;animation:bob 3s ease-in-out infinite}

.mav img.mascot { width:30px; height:30px; object-fit:contain; border-radius:0; }
.mav.ai-av { background: transparent !important; }
.wi img.mascot-lg { width:110px; height:110px; object-fit:contain; animation:bob 3s ease-in-out infinite; }

.mav.ai-av { background: transparent !important; padding:0; }
.mav.ai-av img { width:30px; height:30px; object-fit:contain; }
.mascot-lg { width:120px; height:120px; object-fit:contain; animation:bob 3s ease-in-out infinite; display:block; }


/* Bulk import */
.import-tabs{display:flex;gap:6px;margin-bottom:14px}
.import-tab{flex:1;padding:8px;border:1.5px solid var(--brd);border-radius:9px;background:var(--sur2);font-family:inherit;font-size:12px;font-weight:700;color:var(--tx3);cursor:pointer;transition:all .2s}
.import-tab.active{background:var(--pri-l);border-color:#C5D0FF;color:var(--pri)}
.import-panel{display:none}.import-panel.active{display:block}
.preview-table{width:100%;border-collapse:collapse;font-size:12px;margin-top:10px;max-height:220px;display:block;overflow-y:auto}
.preview-table th{background:var(--pri-l);color:var(--pri);font-weight:700;padding:6px 10px;text-align:left;border:1px solid #C5D0FF;position:sticky;top:0}
.preview-table td{padding:6px 10px;border:1px solid var(--brd)}
.preview-table tr:nth-child(even) td{background:var(--sur2)}
.preview-table td input{width:100%;border:none;background:transparent;font-family:inherit;font-size:12px;padding:0;outline:none}
.preview-table td input:focus{background:var(--pri-l);border-radius:4px;padding:2px 4px}
.drop-zone{border:2px dashed var(--brd);border-radius:12px;padding:28px;text-align:center;cursor:pointer;transition:all .2s;color:var(--tx3)}
.drop-zone:hover,.drop-zone.drag{border-color:var(--pri);background:var(--pri-l);color:var(--pri)}
.drop-zone .dz-icon{font-size:32px;margin-bottom:8px}
.import-result{padding:8px 12px;border-radius:8px;font-size:12px;font-weight:700;margin-top:8px}
.import-result.ok{background:#D3F9D8;color:#1A6B2A}
.import-result.err{background:#FFE3E3;color:#862E2E}

/* ── BATCH GRADE ── */
.batch-queue{display:flex;flex-direction:column;gap:6px;max-height:260px;overflow-y:auto;margin-top:8px}
.batch-queue::-webkit-scrollbar{width:3px}
.batch-queue::-webkit-scrollbar-thumb{background:var(--brd);border-radius:99px}
.bq-item{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--sur2);border:1.5px solid var(--brd);border-radius:10px;font-size:12px}
.bq-item.matched{border-color:#C5D0FF;background:var(--pri-l)}
.bq-item.done{border-color:#B2F2BB;background:#F3FFF5}
.bq-item.error{border-color:#FFC9C9;background:#FFF5F5}
.bq-item.grading{border-color:#FFE066;background:#FFFBEB;animation:pulse 1s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.6}}
.bq-icon{font-size:18px;flex-shrink:0}
.bq-info{flex:1;min-width:0}
.bq-fname{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bq-stu{color:var(--tx3);font-size:11px;margin-top:1px}
.bq-status{font-size:11px;font-weight:700;flex-shrink:0}
.bq-status.ok{color:var(--grn)}
.bq-status.err{color:var(--red)}
.bq-status.wait{color:var(--amb)}
.bq-stu-sel{padding:3px 7px;border:1.5px solid var(--brd);border-radius:7px;font-family:inherit;font-size:11px;background:var(--sur);color:var(--tx);outline:none;max-width:140px}
.bq-stu-sel:focus{border-color:var(--pri)}
.batch-progress{height:6px;background:var(--brd);border-radius:99px;overflow:hidden;margin:10px 0 4px}
.batch-progress-fill{height:100%;background:linear-gradient(90deg,var(--pri),var(--acc));border-radius:99px;transition:width .4s ease}
.batch-summary{display:flex;gap:8px;font-size:12px;font-weight:700}
.bs-done{color:var(--grn)}.bs-err{color:var(--red)}.bs-wait{color:var(--amb)}
/* ── CRITERIA TAB ── */
.nav-tabs{display:flex;border-bottom:1px solid var(--brd);flex-shrink:0;background:var(--sur)}
.nav-tab{flex:1;padding:10px 6px;font-family:inherit;font-size:11px;font-weight:700;color:var(--tx3);background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:4px}
.nav-tab:hover{color:var(--pri);background:var(--pri-l)}
.nav-tab.active{color:var(--pri);border-bottom-color:var(--pri);background:var(--pri-l)}
.tab-panel{display:none;flex:1;overflow:hidden;flex-direction:column}
.tab-panel.active{display:flex}

/* Criteria panel */
.crit-wrap{flex:1;display:flex;flex-direction:column;overflow:hidden}
.crit-toolbar{padding:10px 14px;display:flex;gap:8px;align-items:center;border-bottom:1px solid var(--brd);flex-shrink:0;flex-wrap:wrap}
.crit-toolbar select{padding:6px 10px;border:1.5px solid var(--brd);border-radius:8px;font-family:inherit;font-size:12px;font-weight:600;color:var(--tx);background:var(--sur2);outline:none;cursor:pointer}
.crit-toolbar select:focus{border-color:var(--pri)}
.crit-body{flex:1;overflow-y:auto;padding:14px}
.crit-body::-webkit-scrollbar{width:4px}
.crit-body::-webkit-scrollbar-thumb{background:var(--brd);border-radius:99px}
.crit-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:10px;color:var(--tx3);font-size:13px;text-align:center}
.crit-empty .ce-icon{font-size:40px;margin-bottom:4px}

/* Criteria card */
.crit-card{background:var(--sur);border:1.5px solid var(--brd);border-radius:12px;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh)}
.cc-head{padding:12px 14px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--brd);background:var(--sur2)}
.cc-head .cc-title{flex:1;font-weight:700;font-size:13px}
.cc-head .cc-meta{font-size:11px;color:var(--tx3)}
.cc-actions{display:flex;gap:5px}
.cc-btn{padding:4px 9px;border-radius:7px;border:1px solid var(--brd);background:var(--sur);font-family:inherit;font-size:11px;font-weight:700;cursor:pointer;transition:all .15s}
.cc-btn:hover{background:var(--pri-l);border-color:#C5D0FF;color:var(--pri)}
.cc-btn.del:hover{background:var(--red-l);border-color:#FFC9C9;color:var(--red)}
.cc-body{padding:12px 14px}

/* Rubric table */
.rubric-table{width:100%;border-collapse:collapse;font-size:12px;margin-top:8px}
.rubric-table th{background:var(--pri-l);color:var(--pri);font-weight:700;padding:7px 10px;text-align:left;border:1px solid #C5D0FF}
.rubric-table td{padding:7px 10px;border:1px solid var(--brd);vertical-align:top;line-height:1.55}
.rubric-table tr:nth-child(even) td{background:var(--sur2)}
.level-badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:10px;font-weight:700}
.lv4{background:#D3F9D8;color:#1A6B2A}
.lv3{background:#D0EBFF;color:#1864AB}
.lv2{background:#FFF3BF;color:#7A4F00}
.lv1{background:#FFE3E3;color:#862E2E}

/* Objective list */
.obj-list{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.obj-item{display:flex;align-items:flex-start;gap:8px;padding:7px 10px;background:var(--sur2);border:1px solid var(--brd);border-radius:8px;font-size:12px;line-height:1.55}
.obj-item .oi-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;margin-top:4px}
.obj-item.done .oi-dot{background:var(--grn)}
.obj-item.prog .oi-dot{background:var(--amb)}
.obj-item.todo .oi-dot{background:var(--tx3)}
.obj-item .oi-txt{flex:1}

/* Progress mini chart */
.prog-bar-wrap{margin-top:10px}
.prog-label{display:flex;justify-content:space-between;font-size:11px;font-weight:700;margin-bottom:4px}
.prog-bar{height:7px;background:var(--brd);border-radius:99px;overflow:hidden}
.prog-fill{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--pri),var(--acc));transition:width .5s ease}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
.welcome h2{font-family:'Bricolage Grotesque',sans-serif;font-size:21px;font-weight:800}
.welcome p{font-size:13px;color:var(--tx2);max-width:400px;line-height:1.7}
.wchips{display:flex;flex-wrap:wrap;justify-content:center;gap:7px;margin-top:6px}
.wchip{padding:7px 14px;border-radius:20px;border:1.5px solid var(--brd);background:var(--sur);font-family:inherit;font-size:12px;font-weight:700;color:var(--tx2);cursor:pointer;transition:all .15s}
.wchip:hover{border-color:var(--pri);color:var(--pri);background:var(--pri-l);transform:translateY(-2px)}

/* INPUT */
.inp-area{padding:10px 14px 14px;background:var(--sur);border-top:1px solid var(--brd);flex-shrink:0}
.inp-wrap{display:flex;gap:8px;align-items:flex-end;background:var(--sur2);border:1.5px solid var(--brd);border-radius:15px;padding:9px 9px 9px 14px;transition:border-color .2s,box-shadow .2s}
.inp-wrap:focus-within{border-color:var(--pri);box-shadow:0 0 0 3px rgba(59,91,219,.1);background:var(--sur)}
.inp{flex:1;background:transparent;border:none;outline:none;font-family:inherit;font-size:13.5px;color:var(--tx);resize:none;max-height:110px;line-height:1.6}
.inp::placeholder{color:var(--tx3)}
.sbtn{width:36px;height:36px;border-radius:10px;flex-shrink:0;background:linear-gradient(135deg,var(--pri),var(--acc));border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 3px 10px rgba(59,91,219,.3);transition:all .2s}
.sbtn:hover:not(:disabled){transform:scale(1.07) rotate(-5deg)}
.sbtn:disabled{opacity:.4;cursor:not-allowed}
.sbtn svg{width:15px;height:15px;fill:#fff}
.hint{font-size:11px;color:var(--tx3);text-align:center;margin-top:7px}

/* GRADE MODAL */
.modal-bg{position:fixed;inset:0;background:rgba(26,31,54,.5);z-index:200;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.modal{background:var(--sur);border-radius:18px;padding:24px;width:500px;max-width:96vw;animation:fin .3s ease;max-height:90vh;overflow-y:auto;box-shadow:0 24px 64px rgba(59,91,219,.2)}
.modal h2{font-family:'Bricolage Grotesque',sans-serif;font-size:17px;font-weight:800;margin-bottom:16px}
label{font-size:12px;font-weight:700;color:var(--tx2);margin-bottom:4px;display:block}
input[type=text],input[type=password],textarea,select{width:100%;border:1.5px solid var(--brd);border-radius:9px;padding:8px 12px;font-family:inherit;font-size:13px;color:var(--tx);background:var(--sur2);outline:none;transition:border-color .15s;resize:vertical}
input:focus,textarea:focus,select:focus{border-color:var(--pri);box-shadow:0 0 0 3px rgba(59,91,219,.1);background:var(--sur)}
textarea{min-height:80px}
.btn{padding:8px 17px;border-radius:9px;border:none;font-family:inherit;font-size:13px;font-weight:700;cursor:pointer;transition:all .15s;display:inline-flex;align-items:center;gap:5px}
.btn-p{background:var(--pri);color:#fff}
.btn-p:hover{background:var(--pri-d);transform:translateY(-1px)}
.btn-g{background:var(--bg);color:var(--tx2);border:1.5px solid var(--brd)}
.btn-g:hover{background:var(--brd)}
.btn-hot{background:linear-gradient(135deg,#E64980,#C2255C);color:#fff}
.btn-hot:hover{opacity:.88;transform:translateY(-1px)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none!important}
.frow{display:flex;gap:9px}
.frow>*{flex:1}
.fg{margin-bottom:12px}

/* FILE DROP */
.fdrop{border:2px dashed var(--brd);border-radius:11px;padding:22px;text-align:center;cursor:pointer;transition:all .2s;background:var(--sur2)}
.fdrop:hover,.fdrop.dov{border-color:var(--pri);background:var(--pri-l)}
.flist{display:flex;flex-direction:column;gap:6px;margin-top:10px}
.fi{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--sur2);border:1px solid var(--brd);border-radius:8px;font-size:12px}
.fi .fn{flex:1;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fi .fsz{color:var(--tx3);flex-shrink:0}
.fi .frm{background:none;border:none;cursor:pointer;color:var(--tx3);font-size:12px;padding:2px 4px;border-radius:4px;transition:color .15s}
.fi .frm:hover{color:var(--red)}

/* FB steps */
.fb-steps{background:var(--pri-l);border:1px solid #C5D0FF;border-radius:9px;padding:11px 13px;font-size:12px;line-height:1.85;margin-bottom:13px}
.fb-steps a{color:var(--pri);font-weight:700}

/* NOTIF */
.notif{position:fixed;top:62px;right:16px;padding:10px 15px;border-radius:10px;font-size:13px;font-weight:700;z-index:999;animation:slin .3s ease;max-width:280px}
@keyframes slin{from{transform:translateX(40px);opacity:0}to{transform:none;opacity:1}}
.notif.ok{background:var(--grn);color:#fff}
.notif.err{background:var(--red);color:#fff}
.notif.inf{background:var(--pri);color:#fff}
.hidden{display:none!important}
#lov{position:fixed;inset:0;background:rgba(26,31,54,.55);z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#fff;font-weight:700;font-size:13px;backdrop-filter:blur(4px)}
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.sp{animation:spin .8s linear infinite;display:inline-block}

@media(max-width:640px){.sb{display:none}.chip{font-size:10px;padding:4px 9px}}
/* ---- Score chip (quick chip) ---- */
.chip.score-chip {
  background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  color: #1565c0;
  border-color: #90caf9;
}
.chip.score-chip:hover {
  background: linear-gradient(135deg, #bbdefb, #90caf9);
}

/* ---- Scores panel wrapper ---- */
.scores-wrap {
  display: flex;
  flex-direction: column;
  gap: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
}

/* ---- Toolbar ---- */
.scores-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 16px;
  background: var(--sur);
  border-bottom: 1.5px solid var(--brd);
  flex-wrap: wrap;
}
.scores-toolbar-left,
.scores-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.sc-input-subject {
  width: 220px;
  padding: 7px 11px;
  border: 1.5px solid var(--brd);
  border-radius: 8px;
  font-size: 13px;
  font-family: inherit;
  background: var(--bg);
  color: var(--tx);
  transition: border-color .2s;
}
.sc-input-subject:focus { border-color: var(--pri); outline: none; }
.sc-input-date {
  width: 130px;
  padding: 7px 11px;
  border: 1.5px solid var(--brd);
  border-radius: 8px;
  font-size: 13px;
  font-family: inherit;
  background: var(--bg);
  color: var(--tx);
}
.sc-input-date:focus { border-color: var(--pri); outline: none; }
.sc-select {
  padding: 7px 11px;
  border: 1.5px solid var(--brd);
  border-radius: 8px;
  font-size: 13px;
  font-family: inherit;
  background: var(--bg);
  color: var(--tx);
  cursor: pointer;
}
.sc-btn-sm {
  padding: 7px 13px !important;
  font-size: 12px !important;
  border-radius: 8px !important;
  white-space: nowrap;
}

/* ---- Criteria bar ---- */
.sc-criteria-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  background: #EEF2FF;
  border-bottom: 1px solid #C7D2FE;
  font-size: 12px;
}
.dark .sc-criteria-bar { background: #1e234a; border-color: #3730a3; }
.sc-crit-label { font-weight: 700; color: var(--pri); }
.sc-crit-text { color: var(--tx2); flex: 1; }
.sc-crit-edit {
  background: none; border: 1px solid var(--pri); color: var(--pri);
  border-radius: 6px; padding: 2px 8px; font-size: 11px; cursor: pointer; font-family: inherit;
}

/* ---- Table wrapper ---- */
.sc-table-wrap {
  flex: 1;
  overflow-y: auto;
  padding: 0;
}

.sc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.sc-table thead th {
  position: sticky;
  top: 0;
  background: var(--sur2);
  color: var(--tx3);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  padding: 9px 12px;
  border-bottom: 1.5px solid var(--brd);
  text-align: left;
  z-index: 2;
}
.sc-table tbody tr {
  border-bottom: 1px solid var(--brd);
  transition: background .15s;
}
.sc-table tbody tr:hover { background: var(--sur2); }
.sc-table td {
  padding: 8px 12px;
  vertical-align: middle;
}
.sc-idx { color: var(--tx3); font-size: 11px; text-align: center; }

/* ---- Inputs inside table ---- */
.sc-name-inp, .sc-score-inp, .sc-note-inp {
  width: 100%;
  border: 1.5px solid transparent;
  border-radius: 6px;
  padding: 5px 8px;
  font-size: 13px;
  font-family: inherit;
  background: transparent;
  color: var(--tx);
  transition: border-color .2s, background .2s;
}
.sc-name-inp:focus, .sc-score-inp:focus, .sc-note-inp:focus {
  border-color: var(--pri);
  background: var(--bg);
  outline: none;
}
.sc-score-inp {
  text-align: center;
  font-weight: 700;
  font-size: 14px;
}
.sc-note-inp { font-size: 12px; }

/* ---- Row delete btn ---- */
.sc-del-btn {
  background: none;
  border: none;
  color: var(--tx3);
  cursor: pointer;
  font-size: 15px;
  padding: 4px 6px;
  border-radius: 6px;
  transition: color .2s, background .2s;
}
.sc-del-btn:hover { color: var(--red); background: #FFF0F0; }

/* ---- Badge (xếp loại) ---- */
.sc-badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}
.badge-excellent { background: #D1FAE5; color: #065F46; }
.badge-good      { background: #DBEAFE; color: #1E40AF; }
.badge-average   { background: #FEF9C3; color: #854D0E; }
.badge-weak      { background: #FEE2E2; color: #991B1B; }
.badge-none      { background: var(--sur2); color: var(--tx3); }
.dark .badge-excellent { background: #064E3B; color: #6EE7B7; }
.dark .badge-good      { background: #1E3A5F; color: #93C5FD; }
.dark .badge-average   { background: #451A03; color: #FCD34D; }
.dark .badge-weak      { background: #450A0A; color: #FCA5A5; }

/* ---- Empty state ---- */
.sc-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
  color: var(--tx3);
  text-align: center;
}
.sc-empty-icon { font-size: 48px; margin-bottom: 12px; }
.sc-empty p { font-size: 14px; margin: 3px 0; }

/* ---- Bulk paste bar ---- */
.sc-bulk-bar {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 16px;
  background: var(--sur);
  border-top: 1.5px solid var(--brd);
}
.sc-bulk-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--tx3);
  white-space: nowrap;
  padding-top: 8px;
}
.sc-bulk-inp {
  flex: 1;
  min-height: 40px;
  max-height: 80px;
  padding: 7px 10px;
  border: 1.5px solid var(--brd);
  border-radius: 8px;
  font-size: 12px;
  font-family: monospace;
  background: var(--bg);
  color: var(--tx);
  resize: vertical;
  transition: border-color .2s;
}
.sc-bulk-inp:focus { border-color: var(--pri); outline: none; }

/* ---- Analysis result ---- */
.sc-analysis-wrap {
  border-top: 2px solid var(--pri);
  background: var(--bg);
  max-height: 55vh;
  overflow-y: auto;
  animation: slideUp .3s ease;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.sc-analysis-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--pri), #7C3AED);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 3;
}
.sc-analysis-title {
  font-size: 14px;
  font-weight: 700;
  font-family: 'Bricolage Grotesque', sans-serif;
}
.sc-close-btn {
  background: rgba(255,255,255,.2);
  border: none;
  color: #fff;
  border-radius: 6px;
  padding: 3px 9px;
  cursor: pointer;
  font-size: 13px;
}
.sc-close-btn:hover { background: rgba(255,255,255,.35); }
.sc-analysis-body {
  padding: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--tx);
}

/* ---- Stats cards inside analysis ---- */
.sc-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}
.sc-stat-card {
  background: var(--sur2);
  border-radius: 10px;
  padding: 12px;
  text-align: center;
  border: 1.5px solid var(--brd);
}
.sc-stat-val {
  font-size: 24px;
  font-weight: 800;
  font-family: 'Bricolage Grotesque', sans-serif;
  line-height: 1;
  margin-bottom: 4px;
}
.sc-stat-label { font-size: 11px; color: var(--tx3); font-weight: 600; }
.sc-stat-excellent .sc-stat-val { color: #059669; }
.sc-stat-good      .sc-stat-val { color: #2563EB; }
.sc-stat-average   .sc-stat-val { color: #D97706; }
.sc-stat-weak      .sc-stat-val { color: #DC2626; }
.sc-stat-avg       .sc-stat-val { color: var(--pri); }

/* ---- Distribution bar ---- */
.sc-dist-bar-wrap {
  display: flex;
  height: 22px;
  border-radius: 11px;
  overflow: hidden;
  margin: 8px 0 14px;
  gap: 2px;
}
.sc-dist-seg {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  transition: flex .5s ease;
  min-width: 0;
  border-radius: 0;
}
.sc-dist-seg:first-child { border-radius: 11px 0 0 11px; }
.sc-dist-seg:last-child  { border-radius: 0 11px 11px 0; }
.seg-excellent { background: #10B981; }
.seg-good      { background: #3B82F6; }
.seg-average   { background: #F59E0B; }
.seg-weak      { background: #EF4444; }

/* ---- Student list in analysis ---- */
.sc-student-list {
  margin: 8px 0 14px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.sc-stu-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 8px;
  background: var(--sur2);
  font-size: 12px;
}
.sc-stu-name { flex: 1; font-weight: 600; color: var(--tx); }
.sc-stu-score { font-weight: 800; font-size: 14px; width: 36px; text-align: center; }
.sc-stu-badge { }

/* ---- Section heading inside analysis ---- */
.sc-section-heading {
  font-size: 13px;
  font-weight: 800;
  color: var(--pri);
  margin: 14px 0 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.sc-section-heading::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--brd);
}

/* ---- AI narrative text ---- */
.sc-ai-text {
  background: var(--sur2);
  border-left: 3px solid var(--pri);
  border-radius: 0 8px 8px 0;
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--tx2);
  margin: 6px 0;
  white-space: pre-wrap;
}

/* ---- Criteria modal fields ---- */
.sc-crit-fields {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
  background: var(--sur2);
  border-radius: 10px;
  padding: 12px;
  border: 1.5px solid var(--brd);
}
.sc-crit-field-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.sc-crit-field-row label {
  font-size: 12px;
  font-weight: 700;
  width: 140px;
  flex-shrink: 0;
  color: var(--tx2);
}
.sc-thresh-inp {
  width: 90px;
  padding: 6px 10px;
  border: 1.5px solid var(--brd);
  border-radius: 7px;
  font-size: 13px;
  font-family: inherit;
  background: var(--bg);
  color: var(--tx);
  text-align: center;
}
.sc-thresh-inp:focus { border-color: var(--pri); outline: none; }
.sc-thresh-hint {
  font-size: 11px;
  color: var(--tx3);
}

/* ---- Criteria labels editor ---- */
.sc-crit-labels {
  background: var(--sur2);
  border-radius: 10px;
  padding: 12px;
  border: 1.5px solid var(--brd);
}
.sc-crit-label-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 7px;
}
.sc-crit-label-row:last-child { margin-bottom: 0; }
.sc-lbl-inp {
  flex: 1;
  padding: 5px 9px;
  border: 1.5px solid var(--brd);
  border-radius: 7px;
  font-size: 12px;
  font-family: inherit;
  background: var(--bg);
  color: var(--tx);
}
.sc-lbl-inp:focus { border-color: var(--pri); outline: none; }

/* ---- Loading spinner in analysis ---- */
.sc-analyzing {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 30px;
  color: var(--tx3);
  font-size: 13px;
}
.sc-spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--brd);
  border-top-color: var(--pri);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }