:root {
  --kedu-primary:#20B9F5;
  --kedu-secondary:#29B6F6;
  --kedu-bg:#050913;
  --kedu-text:#F7FAFF;
  --kedu-muted:#91A2B9;
  --kedu-warning:#F4B740;
  --kedu-error:#C94A4A;
  --kedu-success:#2E8B72;
  --kedu-logo-blue:#29B6F6;
  --kedu-logo-yellow:#FFC928;
  --kedu-logo-pink:#FF4F8B;
  --kedu-dark:#0F172A;
  --white:#0B1422;
  --border:#22324A;
  --soft:#0D1828;
  --shadow:0 16px 45px rgba(0,0,0,.28);
  --radius:18px;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--kedu-text);background:var(--kedu-bg)}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
a{color:inherit}
.app-shell{display:grid;grid-template-columns:285px minmax(0,1fr);min-height:100vh}
.sidebar{background:var(--white);border-right:1px solid var(--border);padding:24px 18px;position:sticky;top:0;height:100vh;overflow:auto;display:flex;flex-direction:column;gap:18px}
.brand{display:flex;align-items:center;gap:11px;padding:6px 8px 15px;border-bottom:1px solid var(--border)}
.brand img{width:46px;height:46px;object-fit:contain;border-radius:12px;background:#0d0d0d}
.brand-text strong{display:block;color:var(--kedu-primary);font-size:21px;line-height:1}.brand-text span{display:block;font-size:12px;color:var(--kedu-muted);margin-top:5px}
.progress-card{background:linear-gradient(145deg,var(--kedu-primary),#283755);color:#fff;padding:16px;border-radius:16px}
.progress-row{display:flex;justify-content:space-between;gap:10px;align-items:center}.progress-row strong{font-size:14px}.progress-row span{font-size:13px;opacity:.82}.progress-track{height:8px;background:rgba(255,255,255,.16);border-radius:999px;margin-top:12px;overflow:hidden}.progress-fill{height:100%;background:var(--kedu-secondary);border-radius:999px;transition:width .3s ease}
.step-list{display:flex;flex-direction:column;gap:4px}.step-btn{width:100%;display:grid;grid-template-columns:30px 1fr auto;align-items:center;gap:8px;padding:10px;border:0;border-radius:12px;background:transparent;text-align:left;color:#4b5563}.step-btn:hover{background:#F7F9FA}.step-btn.active{background:#EAF5F5;color:var(--kedu-primary);font-weight:700}.step-btn.done .step-index{background:var(--kedu-secondary);color:#fff;border-color:var(--kedu-secondary)}.step-index{width:25px;height:25px;border:1px solid #D6DAE0;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;background:#fff}.step-label{font-size:13px}.step-check{font-size:12px;color:var(--kedu-secondary)}
.sidebar-actions{margin-top:auto;border-top:1px solid var(--border);padding-top:14px;display:grid;gap:8px}.sidebar-link{border:0;background:transparent;color:var(--kedu-muted);padding:9px 10px;text-align:left;border-radius:10px}.sidebar-link:hover{background:#F7F9FA;color:var(--kedu-primary)}
.main{min-width:0}.topbar{height:74px;background:rgba(244,246,248,.92);backdrop-filter:blur(9px);border-bottom:1px solid rgba(229,231,235,.8);display:flex;align-items:center;justify-content:space-between;padding:0 34px;position:sticky;top:0;z-index:10}.topbar h1{font-size:18px;margin:0;color:var(--kedu-primary)}.topbar-right{display:flex;align-items:center;gap:12px}.save-state{font-size:12px;color:var(--kedu-muted)}.avatar{width:38px;height:38px;border-radius:50%;background:var(--kedu-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.content{max-width:1180px;margin:0 auto;padding:34px 34px 120px}.hero{display:flex;justify-content:space-between;gap:22px;align-items:flex-start;margin-bottom:24px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--kedu-secondary)}.hero h2{font-size:34px;line-height:1.12;margin:6px 0 10px;color:var(--kedu-primary);letter-spacing:-.02em}.hero p{margin:0;max-width:720px;color:var(--kedu-muted);font-size:15px;line-height:1.65}.hero-badge{white-space:nowrap;border:1px solid #D5E8E8;background:#F0FAFA;color:#257E82;padding:8px 11px;border-radius:999px;font-size:12px;font-weight:700}
.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 1px 1px rgba(15,23,42,.02);padding:24px;margin-bottom:18px}.card.soft{background:#FAFBFC}.card-title{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:18px}.card-title h3{margin:0;color:var(--kedu-primary);font-size:18px}.card-title p{margin:5px 0 0;color:var(--kedu-muted);font-size:13px;line-height:1.5}.section-divider{height:1px;background:var(--border);margin:20px 0}
.grid{display:grid;gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.field{display:flex;flex-direction:column;gap:7px}.field label{font-size:12px;color:#4B5563;font-weight:700}.required::after{content:" *";color:var(--kedu-error)}.field input,.field select,.field textarea{width:100%;border:1px solid #D7DCE2;background:#fff;border-radius:11px;padding:11px 12px;color:var(--kedu-text);outline:none;transition:border .15s,box-shadow .15s}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--kedu-secondary);box-shadow:0 0 0 3px rgba(47,164,169,.12)}.field textarea{min-height:95px;resize:vertical}.hint{font-size:11px;color:var(--kedu-muted)}
.option-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.select-card{border:1px solid var(--border);background:#fff;border-radius:14px;padding:16px;cursor:pointer;transition:.15s;position:relative}.select-card:hover{border-color:#B9DADA}.select-card.selected{border-color:var(--kedu-secondary);background:#F0FAFA;box-shadow:0 0 0 2px rgba(47,164,169,.08)}.select-card strong{display:block;color:var(--kedu-primary);margin-bottom:4px;font-size:14px}.select-card span{font-size:12px;color:var(--kedu-muted);line-height:1.4}.select-dot{position:absolute;right:11px;top:11px;width:18px;height:18px;border:1px solid #CBD5E1;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px}.select-card.selected .select-dot{background:var(--kedu-secondary);border-color:var(--kedu-secondary)}
.btn-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.btn{border:0;border-radius:11px;padding:10px 15px;font-weight:700;font-size:13px}.btn.primary{background:var(--kedu-primary);color:#fff}.btn.primary:hover{background:#172037}.btn.secondary{background:#EAF5F5;color:#257E82}.btn.secondary:hover{background:#DDEEEE}.btn.ghost{background:#fff;border:1px solid var(--border);color:#4B5563}.btn.danger{background:#FFF0F0;color:var(--kedu-error)}.btn.small{padding:7px 10px;font-size:12px}.btn.wide{padding-left:22px;padding-right:22px}.btn:disabled{opacity:.45;cursor:not-allowed}
.footer-nav{position:fixed;left:285px;right:0;bottom:0;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-top:1px solid var(--border);padding:14px 32px;display:flex;justify-content:space-between;z-index:20}.footer-nav .right{display:flex;gap:9px}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:14px}.data-table{width:100%;border-collapse:collapse;min-width:700px}.data-table th{background:#F8FAFC;color:#64748B;text-transform:uppercase;letter-spacing:.04em;font-size:10px;text-align:left;padding:11px 12px;border-bottom:1px solid var(--border)}.data-table td{padding:12px;border-bottom:1px solid #EEF0F2;font-size:13px;vertical-align:middle}.data-table tr:last-child td{border-bottom:0}.data-table input,.data-table select{border:1px solid #D7DCE2;border-radius:8px;padding:7px 8px;width:100%}.tag{display:inline-flex;align-items:center;gap:5px;padding:5px 8px;border-radius:999px;background:#F1F5F9;color:#475569;font-size:11px;font-weight:700}.tag.teal{background:#E7F5F5;color:#247E82}.tag.amber{background:#FFF7E3;color:#9A6B10}.tag.red{background:#FFF0F0;color:#A63D3D}.tag.green{background:#EAF7F2;color:#2E765F}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.metric{background:#fff;border:1px solid var(--border);border-radius:16px;padding:16px}.metric span{font-size:11px;color:var(--kedu-muted);text-transform:uppercase;font-weight:800;letter-spacing:.05em}.metric strong{display:block;margin-top:5px;font-size:25px;color:var(--kedu-primary)}
.class-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.class-card{border:1px solid var(--border);border-radius:15px;padding:16px;background:#fff}.class-card h4{margin:0 0 4px;color:var(--kedu-primary)}.class-card p{margin:0;color:var(--kedu-muted);font-size:12px}.class-card .meta{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}.class-card .actions{margin-top:14px;display:flex;gap:8px}
.empty{border:1px dashed #CBD5E1;border-radius:14px;padding:28px;text-align:center;color:var(--kedu-muted);background:#FBFCFD}.empty strong{display:block;color:var(--kedu-primary);margin-bottom:5px}.inline-note{background:#F3F8FA;border-left:4px solid var(--kedu-secondary);border-radius:10px;padding:12px 14px;font-size:12px;color:#4B5563;line-height:1.55}.warning-box{background:#FFF9EB;border:1px solid #F5D998;border-radius:13px;padding:13px 14px;color:#72520D;font-size:12px}.success-box{background:#EFF8F4;border:1px solid #BFE2D4;border-radius:13px;padding:13px 14px;color:#2F6F5A;font-size:12px}.error-box{background:#FFF2F2;border:1px solid #F0C2C2;border-radius:13px;padding:13px 14px;color:#913939;font-size:12px}
.check-list{display:grid;gap:9px}.check-row{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#fff}.check-row input{margin-top:2px}.check-row strong{display:block;font-size:13px;color:var(--kedu-primary)}.check-row span{display:block;font-size:11px;color:var(--kedu-muted);margin-top:3px}
.subject-matrix{display:grid;gap:10px}.subject-row{display:grid;grid-template-columns:minmax(180px,1.2fr) 3fr auto;gap:12px;align-items:center;border:1px solid var(--border);border-radius:13px;padding:12px;background:#fff}.class-chips{display:flex;gap:6px;flex-wrap:wrap}.chip{border:1px solid #D8DEE5;border-radius:999px;background:#fff;padding:6px 9px;font-size:11px;color:#4B5563}.chip.active{background:#EAF5F5;border-color:#B8DBDC;color:#257E82;font-weight:700}
.assignment{display:grid;grid-template-columns:1fr 1fr 1.4fr auto;gap:10px;align-items:end;border:1px solid var(--border);border-radius:13px;padding:12px;background:#fff;margin-bottom:10px}
.welcome{min-height:calc(100vh - 74px);display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:40px}.welcome-copy h2{font-size:48px;line-height:1.05;margin:8px 0 14px;color:var(--kedu-primary);letter-spacing:-.04em}.welcome-copy p{font-size:16px;line-height:1.7;color:var(--kedu-muted);max-width:650px}.welcome-mark{display:flex;gap:8px;margin:22px 0}.brand-dot{width:12px;height:12px;border-radius:50%}.welcome-art{background:linear-gradient(145deg,#F0FAFA,#fff);border:1px solid #D8EBEB;min-height:420px;border-radius:30px;position:relative;overflow:hidden;padding:30px;display:flex;align-items:center;justify-content:center}.welcome-art img{width:230px;max-height:230px;object-fit:contain;border-radius:26px;background:#0d0d0d;box-shadow:var(--shadow)}.orbit{position:absolute;border:1px solid rgba(47,164,169,.16);border-radius:50%}.o1{width:390px;height:390px}.o2{width:300px;height:300px}.o3{width:215px;height:215px}.mini-card{position:absolute;background:#fff;border:1px solid var(--border);border-radius:14px;padding:12px 14px;box-shadow:var(--shadow);font-size:11px;color:#64748B}.mini-card strong{display:block;color:var(--kedu-primary);font-size:13px;margin-bottom:3px}.mc1{left:24px;top:48px}.mc2{right:18px;bottom:72px}.mc3{left:44px;bottom:30px}
.review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.review-card{border:1px solid var(--border);border-radius:14px;padding:16px}.review-card h4{margin:0 0 12px;color:var(--kedu-primary)}.summary-line{display:flex;justify-content:space-between;gap:14px;padding:7px 0;border-bottom:1px solid #F0F2F4;font-size:12px}.summary-line:last-child{border-bottom:0}.summary-line span{color:var(--kedu-muted)}.summary-line strong{text-align:right;color:#334155}
.timeline{display:grid;gap:14px;margin:22px 0}.timeline-row{display:flex;gap:12px;align-items:center}.timeline-dot{width:27px;height:27px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#EAF5F5;color:#257E82;font-size:12px;font-weight:800}.timeline-row.pending .timeline-dot{background:#F1F5F9;color:#94A3B8}.timeline-row div strong{display:block;font-size:13px;color:var(--kedu-primary)}.timeline-row div span{font-size:11px;color:var(--kedu-muted)}
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.46);z-index:50;display:flex;align-items:center;justify-content:center;padding:20px}.modal{width:min(760px,100%);max-height:88vh;overflow:auto;background:#fff;border-radius:20px;box-shadow:0 28px 90px rgba(15,23,42,.26);padding:22px}.modal-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start;margin-bottom:18px}.modal-head h3{margin:0;color:var(--kedu-primary)}.close-btn{border:0;background:#F1F5F9;width:32px;height:32px;border-radius:50%}.modal-footer{display:flex;justify-content:flex-end;gap:9px;margin-top:18px}
.toast{position:fixed;right:24px;bottom:86px;background:var(--kedu-dark);color:#fff;border-radius:12px;padding:11px 14px;font-size:12px;z-index:80;box-shadow:var(--shadow);animation:slideIn .2s ease}@keyframes slideIn{from{transform:translateY(8px);opacity:0}to{transform:none;opacity:1}}
.mobile-toggle{display:none}
@media (max-width:1000px){.app-shell{grid-template-columns:230px minmax(0,1fr)}.sidebar{padding:18px 12px}.footer-nav{left:230px}.content{padding-left:24px;padding-right:24px}.grid.three,.metric-grid,.class-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.option-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.welcome{grid-template-columns:1fr}.welcome-art{min-height:330px}.assignment{grid-template-columns:1fr 1fr}.assignment .btn{align-self:end}}
@media (max-width:760px){.app-shell{display:block}.sidebar{position:fixed;left:0;top:0;bottom:0;width:285px;z-index:60;transform:translateX(-102%);transition:.2s;box-shadow:var(--shadow)}.sidebar.open{transform:none}.mobile-toggle{display:inline-flex;border:0;background:#fff;border:1px solid var(--border);border-radius:10px;width:38px;height:38px;align-items:center;justify-content:center}.topbar{height:66px;padding:0 16px}.topbar h1{font-size:15px}.content{padding:24px 16px 100px}.footer-nav{left:0;padding:12px 16px}.hero{display:block}.hero h2{font-size:29px}.hero-badge{display:inline-block;margin-top:12px}.grid.two,.grid.three,.grid.four,.metric-grid,.class-grid,.review-grid,.option-grid{grid-template-columns:1fr}.welcome-copy h2{font-size:37px}.welcome-art{display:none}.subject-row{grid-template-columns:1fr}.assignment{grid-template-columns:1fr}.data-table{min-width:650px}.topbar-right .school-name{display:none}}

/* Production dark-theme overrides */
body{background:#050913;color:#f7faff}
.sidebar{background:#08111e;border-right-color:#1d2d45}
.brand{border-bottom-color:#1d2d45}
.brand img{background:#fff;padding:3px}
.brand-text strong,.topbar h1,.hero h2,.card-title h3,.select-card strong,.class-card h4,.empty strong,.review-card h4,.timeline-row div strong{color:#f7faff}
.brand-text span,.hint,.save-state,.hero p,.card-title p,.class-card p,.summary-line span,.timeline-row div span{color:#91a2b9}
.progress-card{background:#0d1a2c;border:1px solid #223650}
.progress-fill{background:#20b9f5}
.step-btn{color:#a8b6c9}.step-btn:hover{background:#0d1828}.step-btn.active{background:#10243a;color:#fff}
.step-index{background:#0b1422;border-color:#33455f;color:#b8c6d8}
.step-btn.done .step-index{background:#20b9f5;color:#04121b;border-color:#20b9f5}
.sidebar-actions{border-top-color:#1d2d45}.sidebar-link:hover{background:#0d1828;color:#fff}
.topbar{background:rgba(5,9,19,.92);border-bottom-color:#1d2d45}
.avatar{background:#20b9f5;color:#04121b}
.card,.card.soft,.metric,.class-card,.select-card,.subject-row,.check-row,.assignment,.review-card{
  background:#0b1422;border-color:#22324a;color:#f7faff
}
.section-divider{background:#22324a}
.field label{color:#b8c5d6}
.field input,.field select,.field textarea,.data-table input,.data-table select{
  background:#091321;border-color:#2a3a54;color:#fff
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:#20b9f5;box-shadow:0 0 0 3px rgba(32,185,245,.12)}
.select-card.selected{border-color:#20b9f5;background:#0c2031;box-shadow:none}
.select-card.selected .select-dot{background:#20b9f5;border-color:#20b9f5;color:#04121b}
.btn.primary{background:#20b9f5;color:#04121b}.btn.primary:hover{background:#45c5f6}
.btn.secondary{background:#17283d;color:#ffca28}.btn.secondary:hover{background:#1b3049}
.btn.ghost{background:#0b1422;border-color:#2a3a54;color:#c6d2e1}
.btn.danger{background:#25131a;color:#ff9aae}
.footer-nav{background:rgba(5,9,19,.96);border-top-color:#22324a}
.table-wrap{border-color:#22324a}.data-table th{background:#0e1929;color:#8fa0b8;border-bottom-color:#22324a}.data-table td{border-bottom-color:#172338}
.tag{background:#142136;color:#b9c8dc}.tag.teal{background:#0f2a3b;color:#58c9f7}.tag.amber{background:#2a2410;color:#ffda63}.tag.green{background:#10251f;color:#81dab9}.tag.red{background:#29151a;color:#ff9aaa}
.inline-note{background:#0c1a29;border-left-color:#20b9f5;color:#b4c1d1}
.warning-box{background:#211c0d;border-color:#55491b;color:#f4d875}
.success-box{background:#0d2018;border-color:#24553d;color:#b7edd7}
.error-box{background:#251217;border-color:#60303a;color:#ffb6c2}
.empty{background:#08111e;border-color:#33445e;color:#91a2b9}
.chip{background:#0b1422;border-color:#33445e;color:#b6c5d7}.chip.active{background:#10283b;border-color:#20b9f5;color:#6ed3fb}
.welcome-copy h2{color:#fff}.welcome-copy p{color:#a9b7ca}
.welcome-art{background:#091523;border-color:#223650}
.mini-card{background:#0d1828;border-color:#223650;color:#91a2b9}.mini-card strong{color:#fff}
.modal-backdrop{background:rgba(0,0,0,.74)}.modal{background:#08111e;color:#f7faff;border:1px solid #263650}
.modal-head h3{color:#fff}.close-btn{background:#111c2e;color:#fff}
.metric strong{color:#fff}
.summary-line{border-bottom-color:#172338}.summary-line strong{color:#dbe6f3}
.timeline-dot{background:#10283b;color:#20b9f5}
.mobile-toggle{background:#0b1422!important;border-color:#2a3a54!important;color:#fff}

.terms-consent{margin:20px 0 14px;padding:16px 17px;background:#0c1a29;border:1px solid #28405e;border-radius:12px}
.terms-check{display:flex;align-items:flex-start;gap:11px;color:#c8d4e2;font-size:13px;line-height:1.55;cursor:pointer}
.terms-check input{width:18px;height:18px;margin-top:2px;accent-color:#20b9f5;flex:0 0 auto}
.terms-check a{color:#20b9f5;font-weight:750;text-decoration:none}.terms-check a:hover{text-decoration:underline}
.terms-help{margin:9px 0 0 29px!important;font-size:11px!important;color:#71849c!important}
.btn:disabled{opacity:.42;cursor:not-allowed;transform:none!important}