:root{--primary:#4361ee;--primary-dark:#2f4bc5;--primary-soft:#eef1ff;--success:#14996b;--success-soft:#e7f7ef;--warning:#d9901a;--warning-soft:#fff5df;--danger:#df4b5d;--danger-soft:#fff0f2;--ink:#1d2433;--muted:#6f7a91;--faint:#a9b2c5;--line:#e7eaf1;--canvas:#f6f8fc;--card:#fff;--sidebar:#fff;--shadow:0 4px 16px rgba(31,42,68,.06);--shadow-lg:0 18px 45px rgba(31,42,68,.14);--radius:10px;--radius-sm:7px;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--canvas)}
*{box-sizing:border-box}html,body{min-height:100%;margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.hidden{display:none!important}.muted{color:var(--muted)}.mono{font-variant-numeric:tabular-nums}.nowrap{white-space:nowrap}.skip{position:absolute;left:-9999px}.app-shell{min-height:100vh;display:grid;grid-template-columns:264px minmax(0,1fr)}
.sidebar{position:sticky;top:0;display:flex;height:100vh;flex-direction:column;background:var(--sidebar);border-right:1px solid var(--line);z-index:30}.brand{height:77px;display:flex;align-items:center;gap:12px;padding:0 24px;border-bottom:1px solid var(--line)}.brand-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:9px;background:var(--primary);color:#fff;font-weight:800;font-size:18px;box-shadow:0 5px 12px rgba(67,97,238,.28)}.brand-name{font-weight:800;letter-spacing:.02em}.brand-sub{font-size:11px;color:var(--muted);margin-top:2px}.nav{padding:18px 12px;display:flex;flex-direction:column;gap:4px;overflow:auto}.nav-label{font-size:10px;color:var(--faint);font-weight:800;letter-spacing:.12em;text-transform:uppercase;padding:14px 12px 6px}.nav-item{border:0;background:transparent;color:#657089;display:flex;align-items:center;gap:12px;width:100%;min-height:43px;padding:0 12px;border-radius:7px;font-size:14px;text-align:left}.nav-item:hover{background:#f6f7fc;color:var(--primary)}.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:700}.nav-icon{font-size:18px;width:20px;text-align:center}.sidebar-footer{margin:auto 18px 18px;border-top:1px solid var(--line);padding-top:16px;font-size:11px;color:var(--muted);line-height:1.6}
.main{min-width:0}.topbar{height:77px;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 30px;position:sticky;top:0;z-index:20}.crumb{font-size:13px;color:var(--muted);display:flex;gap:9px;align-items:center}.crumb strong{color:var(--ink)}.top-actions{display:flex;align-items:center;gap:12px}.year-select,.top-user{height:38px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);padding:0 12px}.top-user{display:flex;align-items:center;gap:9px;font-size:13px}.avatar{display:grid;place-items:center;width:27px;height:27px;border-radius:50%;background:var(--primary);color:#fff;font-size:10px;font-weight:800}.mobile-menu{display:none;border:0;background:transparent;font-size:22px;color:var(--ink)}
.content{padding:28px 30px 48px;max-width:1560px;margin:0 auto}.page-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--primary);font-weight:800;margin-bottom:5px}.page-heading h1{font-size:24px;line-height:1.25;margin:0;font-weight:750;letter-spacing:-.02em}.page-heading p{margin:7px 0 0;color:var(--muted);font-size:14px;line-height:1.5}.actions{display:flex;gap:9px;flex-wrap:wrap;align-items:center}.btn{border:1px solid transparent;border-radius:7px;min-height:37px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:13px;font-weight:700;transition:.16s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 5px 12px rgba(67,97,238,.22)}.btn-primary:hover{background:var(--primary-dark)}.btn-quiet{border-color:var(--line);background:#fff;color:#536077}.btn-quiet:hover{border-color:#cbd3e4;background:#f9fafc}.btn-danger{color:var(--danger);border-color:#f3c9cf;background:#fff}.btn-small{min-height:31px;padding:0 10px;font-size:12px}.icon-btn{width:37px;padding:0}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.card-header{padding:18px 20px 14px;display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.card-header h2{font-size:15px;margin:0;font-weight:750}.card-header p{margin:4px 0 0;color:var(--muted);font-size:12px;line-height:1.45}.card-body{padding:0 20px 20px}.hero{position:relative;overflow:hidden;padding:25px 28px;border:0;background:linear-gradient(130deg,var(--primary),#304aa9);color:#fff;box-shadow:0 12px 25px rgba(67,97,238,.2);min-height:165px}.hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.18) 1.5px,transparent 1.5px);background-size:20px 20px;opacity:.65}.hero>*{position:relative}.hero h2{font-size:22px;margin:3px 0 6px;letter-spacing:-.02em}.hero p{max-width:680px;margin:0;color:rgba(255,255,255,.87);line-height:1.55;font-size:14px}.hero .actions{margin-top:18px}.hero .btn-quiet{background:#fff;color:var(--primary);border:0}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:18px 0}.stat{padding:18px;min-height:118px}.stat-top{display:flex;justify-content:space-between;gap:8px}.stat-label{color:var(--muted);font-size:12px;font-weight:650}.stat-icon{width:33px;height:33px;border-radius:8px;display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);font-size:16px}.stat-icon.warning{background:var(--warning-soft);color:var(--warning)}.stat-icon.success{background:var(--success-soft);color:var(--success)}.stat-icon.danger{background:var(--danger-soft);color:var(--danger)}.stat-value{font-weight:780;font-size:24px;letter-spacing:-.04em;margin:13px 0 3px}.stat-foot{font-size:11px;color:var(--muted)}.dashboard-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:18px}.flow{display:grid;grid-template-columns:repeat(4,1fr);padding:7px 20px 20px;gap:10px}.flow-step{position:relative;min-height:119px;padding:16px 13px;border-radius:8px;background:#fafbfe;border:1px solid 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#edf0f5;font-size:11px}.progress{height:6px;border-radius:5px;background:#edf0f6;overflow:hidden;margin-top:6px}.progress>i{display:block;height:100%;background:var(--primary);border-radius:5px}.teacher-actions{position:absolute;top:13px;right:11px}.teacher-subjects{margin-top:9px;color:var(--muted);font-size:11px;line-height:1.45}.rules{padding:0 20px 20px;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.rule{border:1px solid var(--line);border-radius:8px;padding:13px;background:#fcfdff}.rule label{font-size:12px;font-weight:700;display:block;margin-bottom:7px}.rule p{font-size:10px;color:var(--muted);line-height:1.4;margin:0 0 9px}.rule input{width:100%;height:35px;border:1px solid #dfe4ef;border-radius:6px;padding:0 9px;font-variant-numeric:tabular-nums}.formula{margin:0 20px 20px;padding:14px;border-radius:8px;background:#111a35;color:#dce7ff;font:12px/1.65 ui-monospace,SFMono-Regular,Menlo,monospace;overflow:auto}.formula strong{color:#7fb0ff}.distribution-info{padding:0 20px 16px;display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.distribution-info b{color:var(--ink)}.status-panel{display:flex;gap:13px;padding:16px 20px 20px;align-items:flex-start}.status-icon{width:36px;height:36px;display:grid;place-items:center;border-radius:8px;background:var(--warning-soft);color:var(--warning);font-size:18px}.status-panel h3{font-size:13px;margin:2px 0 4px}.status-panel p{font-size:12px;color:var(--muted);margin:0;line-height:1.55}.toast-region{position:fixed;right:20px;bottom:20px;display:grid;gap:9px;z-index:100}.toast{width:min(390px,calc(100vw - 40px));padding:13px 15px;border-radius:8px;background:#202b45;color:#fff;box-shadow:var(--shadow-lg);font-size:12px;line-height:1.45;animation:pop .2s ease}.toast.success{background:#117657}.toast.warning{background:#9b6c16}.toast.error{background:#b83649}@keyframes pop{from{transform:translateY(8px);opacity:0}to{transform:translateY(0);opacity:1}}.modal{border:0;padding:0;width:min(640px,calc(100vw - 28px));border-radius:12px;background:#fff;box-shadow:var(--shadow-lg);color:var(--ink)}.modal::backdrop{background:rgba(17,26,53,.42);backdrop-filter:blur(2px)}.modal-box{display:flex;flex-direction:column;max-height:min(82vh,760px)}.modal-head{padding:19px 22px 15px;display:flex;align-items:flex-start;justify-content:space-between;border-bottom:1px solid var(--line);flex:0 0 auto}.modal-head h2{margin:0;font-size:17px}.modal-head p{font-size:12px;line-height:1.45;color:var(--muted);margin:5px 0 0}.close{border:0;background:transparent;color:var(--muted);font-size:22px;line-height:1;padding:0 0 0 15px}.modal-body{padding:18px 22px;overflow:auto;min-height:0}.modal-foot{padding:14px 22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:9px;flex:0 0 auto}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}.form-group{display:grid;gap:6px}.form-group.full{grid-column:1/-1}.form-group label{font-size:12px;font-weight:700}.form-group input,.form-group select,.form-group textarea{min-height:37px;border:1px solid #dfe4ef;border-radius:7px;padding:8px 10px;outline:0;font-size:13px}.form-group textarea{min-height:76px;resize:vertical}.form-hint{font-size:10px;color:var(--muted);line-height:1.45}.auth{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#edf1ff,#f8faff)}.auth-card{width:min(470px,100%);background:#fff;border:1px solid var(--line);border-radius:13px;padding:32px;box-shadow:var(--shadow-lg)}.auth-brand{display:flex;gap:11px;align-items:center;margin-bottom:25px}.auth-brand .brand-mark{width:42px;height:42px}.auth h1{font-size:21px;margin:0 0 7px}.auth p{font-size:13px;color:var(--muted);line-height:1.55;margin:0 0 20px}.auth .form-grid{grid-template-columns:1fr}.auth .btn{width:100%;margin-top:6px}.security-note{margin-top:17px;padding:11px 12px;background:#f6f8fc;border-radius:7px;font-size:11px;color:var(--muted);line-height:1.5}.loading{display:grid;place-items:center;min-height:100vh;color:var(--muted);font-size:14px}
@media(max-width:1120px){.stats{grid-template-columns:repeat(2,1fr)}.teacher-grid{grid-template-columns:repeat(2,1fr)}.flow{grid-template-columns:repeat(2,1fr)}.flow-step:after{display:none}}@media(max-width:850px){.app-shell{display:block}.sidebar{position:fixed;left:0;transform:translateX(-101%);transition:transform .2s;width:264px;box-shadow:var(--shadow-lg)}.sidebar.open{transform:translateX(0)}.mobile-menu{display:block}.topbar{padding:0 18px}.content{padding:22px 18px}.top-user span,.top-actions .year-select{display:none}.dashboard-grid,.split{grid-template-columns:1fr}.page-heading{align-items:flex-start;flex-direction:column}.page-heading .actions{width:100%}.rules{grid-template-columns:1fr}}@media(max-width:560px){.content{padding:18px 13px 36px}.topbar{height:63px}.stats,.summary-grid{grid-template-columns:1fr 1fr;gap:10px}.stat{min-height:106px;padding:14px}.stat-value{font-size:21px}.hero{padding:22px 18px}.hero h2{font-size:19px}.teacher-grid{grid-template-columns:1fr}.flow{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.form-group.full{grid-column:auto}.modal{width:calc(100vw - 16px)}.modal-head,.modal-body,.modal-foot{padding-left:15px;padding-right:15px}.data-table th,.data-table td{padding:10px}.page-heading h1{font-size:21px}.actions .btn{flex:1}.warning-banner{font-size:11px}}