:root{
  --navy:#0d2b3e;
  --teal:#0f6d6a;
  --teal-dark:#0a4e4b;
  --orange:#f2732e;
  --pink:#e85a8a;
  --yellow:#ffc23c;
  --paper:#f6f7f4;
  --white:#ffffff;
  --ink:#0d2b3e;
  --muted:#5c7480;
  --line:#dfe6e2;
  --radius:16px;
  --shadow:0 8px 24px rgba(13,43,62,0.12);
  font-family:"Poppins","Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;background:var(--paper);color:var(--ink);height:100%;}
#app{min-height:100vh;display:flex;flex-direction:column;}
button{font-family:inherit;cursor:pointer;}
input,select{font-family:inherit;}
::selection{background:var(--yellow);}
button:focus-visible,input:focus-visible,select:focus-visible,.filter-chip:focus-visible,.desk:focus-visible{
  outline:3px solid rgba(15,109,106,.45);outline-offset:2px;
}

/* ---------- shared bits ---------- */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 22px;background:var(--navy);color:#fff;position:sticky;top:0;z-index:40;
}
.topbar .brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.3px;min-width:0;}
.topbar .brand-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.student-topbar{gap:16px;}
.student-topbar .brand{flex:0 1 auto;}
.student-topbar .topbar-actions{margin-left:auto;}
.top-nav{
  display:flex;align-items:center;gap:4px;flex:1;justify-content:center;min-width:0;flex-wrap:wrap;
}
.top-nav-link{
  border:none;background:transparent;color:rgba(255,255,255,.78);
  padding:8px 14px;border-radius:999px;font-weight:700;font-size:13.5px;white-space:nowrap;
  transition:background .15s, color .15s;
}
.top-nav-link:hover{background:rgba(255,255,255,.12);color:#fff;}
.top-nav-link.active{background:rgba(255,255,255,.18);color:#fff;}
@media(max-width:760px){
  .student-topbar{flex-wrap:wrap;}
  .top-nav{order:3;width:100%;justify-content:flex-start;padding-top:4px;}
  .top-nav-link{padding:7px 11px;font-size:12.5px;}
}
.brand .logo-mark{
  width:34px;height:34px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,var(--orange),var(--pink));
  display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:15px;
}
.pillbtn{
  border:none;border-radius:999px;padding:9px 16px;font-weight:600;font-size:13px;
  background:rgba(255,255,255,.12);color:#fff;transition:background .15s;
}
.pillbtn:hover{background:rgba(255,255,255,.22);}
.pillbtn.solid{background:var(--orange);color:#fff;}
.pillbtn.solid:hover{background:#d9611f;}
.pillbtn.ghost{background:transparent;border:1.5px solid rgba(255,255,255,.5);}
.pillbtn.soft{background:rgba(255,255,255,.14);}

.screen{flex:1;display:flex;flex-direction:column;min-height:0;}
.center-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:24px;}

.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);}

/* ---------- login ---------- */
.login-shell{
  width:100%;max-width:1040px;min-height:560px;display:grid;grid-template-columns:1fr 1fr;
  border-radius:24px;overflow:hidden;box-shadow:var(--shadow);
}
@media(max-width:820px){
  .login-shell{grid-template-columns:1fr;min-height:auto;}
  .login-side{min-height:180px;padding:28px 24px;}
  .login-form{padding:28px 22px 32px;}
  .login-tag{font-size:22px;}
}
.login-side{
  background:radial-gradient(circle at 20% 20%, #12807c, var(--navy) 70%);
  color:#fff;padding:48px 40px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;
}
.login-side::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,var(--orange) 0%,transparent 70%);opacity:.6;
}
.login-side::before{
  content:"";position:absolute;left:-40px;top:-40px;width:150px;height:150px;border-radius:50%;
  background:radial-gradient(circle,var(--pink) 0%,transparent 70%);opacity:.5;
}
.login-logo{display:flex;align-items:center;gap:12px;z-index:1;}
.login-logo .logo-mark{width:46px;height:46px;font-size:19px;border-radius:12px;}
.login-tag{font-size:28px;font-weight:800;line-height:1.25;z-index:1;}
.login-tag span{color:var(--yellow);}
.login-sub{font-size:14px;opacity:.85;z-index:1;max-width:320px;}

.login-form{padding:40px 44px;display:flex;flex-direction:column;justify-content:center;gap:14px;background:#fff;}
.login-form h2{margin:0 0 2px;font-size:22px;}
.login-form .hint{color:var(--muted);font-size:13px;margin:0 0 4px;}
.role-tabs{
  display:grid;grid-template-columns:1fr 1fr;gap:6px;background:#eef2f0;padding:5px;border-radius:12px;margin-bottom:4px;
}
.role-tab{
  border:none;border-radius:9px;padding:10px 12px;font-weight:700;font-size:13.5px;
  background:transparent;color:var(--muted);transition:all .15s;
}
.role-tab.active{background:#fff;color:var(--navy);box-shadow:0 2px 8px rgba(13,43,62,.08);}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:12.5px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;}
.email-combo{display:flex;align-items:center;border:1.5px solid var(--line);border-radius:12px;overflow:hidden;background:#fafcfb;}
.email-combo input{border:none;background:transparent;padding:12px 12px;flex:1;min-width:0;font-size:14.5px;outline:none;}
.email-combo .suffix{padding:12px 12px;color:var(--muted);font-size:14.5px;background:#eef2f0;white-space:nowrap;}
.plain-input{border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;font-size:14.5px;background:#fafcfb;outline:none;}
.plain-input:focus,.email-combo:focus-within{border-color:var(--teal);}
.login-actions{display:flex;align-items:center;gap:12px;margin-top:4px;flex-wrap:wrap;}
.btn-primary{
  background:var(--orange);color:#fff;border:none;border-radius:12px;padding:13px 22px;font-weight:700;font-size:14.5px;
  box-shadow:0 6px 14px rgba(242,115,46,.35);
}
.btn-primary:hover{background:#d9611f;}
.btn-primary.wide{width:100%;}
.btn-secondary{
  background:#eef2f0;color:var(--navy);border:none;border-radius:12px;padding:12px 18px;font-weight:700;font-size:14px;
}
.btn-secondary:hover{background:#e2e8e5;}
.link-btn{background:none;border:none;color:var(--teal);font-weight:600;font-size:13.5px;text-decoration:underline;padding:6px 0;}
.err{color:#c0392b;font-size:13px;font-weight:600;min-height:16px;}
.testbox{margin-top:2px;font-size:12px;color:var(--muted);background:#f2f5f3;border-radius:10px;padding:10px 12px;line-height:1.45;}
.devs-link{margin-top:8px;text-align:center;}

/* ---------- page chrome ---------- */
.page-header{margin-bottom:20px;}
.page-header h1{margin:0 0 6px;font-size:26px;line-height:1.2;}
.page-header p{margin:0;color:var(--muted);font-size:14.5px;max-width:52ch;}
.page-kicker{font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--orange);margin:0 0 6px;}

.welcome-banner{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  background:linear-gradient(135deg,#12807c 0%, var(--navy) 100%);
  color:#fff;border-radius:20px;padding:22px 24px;margin-bottom:20px;box-shadow:var(--shadow);
}
.welcome-banner h1{margin:0 0 4px;font-size:24px;}
.welcome-banner p{margin:0;opacity:.9;font-size:14px;}
.welcome-cta{flex-shrink:0;}

.stat-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px;}
.stat-chip{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border-radius:999px;padding:10px 16px;box-shadow:var(--shadow);
  font-weight:700;font-size:13.5px;cursor:pointer;border:1.5px solid transparent;color:var(--ink);
}
.stat-chip:hover{border-color:var(--teal);}
.stat-chip .ico{font-size:16px;}
.stat-chip .hint{font-weight:600;color:var(--muted);font-size:12px;}

.action-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px;width:100%;}
@media(max-width:560px){.action-grid{grid-template-columns:1fr;}}
.action-card{
  border:1.5px solid var(--line);background:#fafcfb;border-radius:14px;padding:14px 12px;text-align:left;
  display:flex;flex-direction:column;gap:4px;transition:border-color .15s, transform .15s, box-shadow .15s;
}
.action-card:hover{border-color:var(--teal);transform:translateY(-2px);box-shadow:0 6px 16px rgba(13,43,62,.08);}
.action-card .ac-title{font-weight:800;font-size:14px;}
.action-card .ac-sub{font-size:12px;color:var(--muted);line-height:1.35;}
.action-card.primary{background:var(--teal);border-color:var(--teal);color:#fff;}
.action-card.primary .ac-sub{color:rgba(255,255,255,.85);}
.action-card.primary:hover{filter:brightness(1.05);border-color:var(--teal);}

/* ---------- dashboard ---------- */
.dash-wrap{max-width:1180px;margin:0 auto;padding:24px 20px 40px;width:100%;}
.dash-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;flex-wrap:wrap;gap:14px;}
.dash-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:20px;}
@media(max-width:880px){.dash-grid{grid-template-columns:1fr;}}
.panel{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;}
.panel h3{margin:0 0 6px;font-size:16px;}
.panel-lead{margin:0 0 14px;color:var(--muted);font-size:13px;}
.web-legend{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:12px;font-size:11.5px;color:var(--muted);}
.web-legend span{display:inline-flex;align-items:center;gap:5px;}
.dot{width:9px;height:9px;border-radius:50%;display:inline-block;}

.avatar-col{display:flex;flex-direction:column;align-items:center;gap:10px;}
.avatar-frame{
  background:linear-gradient(180deg,#eaf4f1,#fff);border-radius:18px;padding:14px;box-shadow:inset 0 0 0 1px var(--line);
}
.avatar-name-btn{
  border:none;background:none;text-align:center;cursor:pointer;padding:8px 12px;border-radius:10px;
}
.avatar-name-btn:hover{background:#f0f4f2;}
.avatar-name-btn .nm{font-weight:800;font-size:16px;}
.avatar-name-btn .lv{font-size:12.5px;color:var(--muted);}
.avatar-name-btn .linkish{font-size:12px;color:var(--teal);font-weight:700;margin-top:2px;}

.bottom-nav{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap;justify-content:center;}
.nav-btn{
  background:var(--teal);color:#fff;border:none;border-radius:12px;padding:12px 20px;font-weight:700;font-size:13.5px;flex:1;min-width:110px;
  box-shadow:0 6px 14px rgba(15,109,106,.3);
}
.nav-btn.alt1{background:var(--orange);box-shadow:0 6px 14px rgba(242,115,46,.3);}
.nav-btn.alt2{background:var(--pink);box-shadow:0 6px 14px rgba(232,90,138,.3);}
.nav-btn:hover{filter:brightness(1.06);}

/* profile */
.profile-grid{display:grid;grid-template-columns:220px 1fr;gap:28px;max-width:760px;margin:0 auto;}
@media(max-width:640px){.profile-grid{grid-template-columns:1fr;}}
.profile-field{margin-bottom:14px;}
.profile-field label{font-size:12px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.04em;}
.profile-field div.val{font-size:15.5px;font-weight:600;margin-top:2px;}

/* training path */
.path-wrap{max-width:640px;margin:0 auto;padding:24px 20px 40px;display:flex;flex-direction:column;align-items:center;gap:6px;}
.path-title{text-align:center;margin-bottom:10px;width:100%;}
.path-title h2{margin:0 0 4px;font-size:24px;}
.path-title p{color:var(--muted);margin:0;font-size:14px;}
.path-progress{
  width:100%;max-width:360px;margin:10px auto 6px;
}
.path-progress .bar{height:10px;background:#e5eae7;border-radius:999px;overflow:hidden;}
.path-progress .bar > div{height:100%;background:var(--teal);transition:width .3s;}
.path-progress .meta{display:flex;justify-content:space-between;margin-top:6px;font-size:12.5px;color:var(--muted);font-weight:600;}
.path-cta{margin:8px 0 18px;width:100%;max-width:360px;}
.path-legend{
  display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-bottom:14px;font-size:12px;color:var(--muted);font-weight:600;
}
.path-legend span{display:inline-flex;align-items:center;gap:6px;}
.lg-dot{width:10px;height:10px;border-radius:50%;display:inline-block;}
.lg-dot.done{background:var(--teal);}
.lg-dot.next{background:var(--orange);}
.lg-dot.locked{background:#c9d2ce;}
.lg-dot.boss{background:linear-gradient(135deg,var(--pink),var(--orange));}

.path-nodes{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;}
.node-row{display:flex;flex-direction:column;align-items:center;position:relative;}
.node-row .connector{
  width:3px;height:14px;background:#d5ddd9;border-radius:2px;margin-bottom:2px;
}
.node-row .connector.filled{background:var(--teal);}
.lesson-node{
  width:70px;height:70px;border-radius:50%;border:none;font-weight:800;font-size:16px;color:#fff;
  display:flex;align-items:center;justify-content:center;position:relative;box-shadow:var(--shadow);
}
.lesson-node.locked{background:#c9d2ce;color:#8a978f;cursor:not-allowed;box-shadow:none;}
.lesson-node.done{background:var(--teal);}
.lesson-node.next{background:var(--orange);animation:pulse 1.8s infinite;}
.lesson-node.boss{background:linear-gradient(135deg,var(--pink),var(--orange));}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(242,115,46,.5);}70%{box-shadow:0 0 0 14px rgba(242,115,46,0);}100%{box-shadow:0 0 0 0 rgba(242,115,46,0);}}
.node-label{font-size:12px;font-weight:700;color:var(--muted);margin-top:6px;}
.node-label.active{color:var(--orange);}
.node-label.done{color:var(--teal);}
.offset-l{margin-left:-56px;}
.offset-r{margin-left:56px;}

/* lesson play */
.lesson-play{max-width:640px;margin:0 auto;padding:22px 20px 50px;}
.lesson-status{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.lesson-status .chip{
  background:#fff;border:1.5px solid var(--line);border-radius:999px;padding:6px 12px;font-size:12.5px;font-weight:700;color:var(--muted);
}
.train-track{display:flex;gap:8px;overflow-x:auto;padding:10px 4px 18px;}
.wagon{
  min-width:38px;height:38px;border-radius:8px;background:#e2e8e5;display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--muted);flex-shrink:0;
}
.wagon.answered{background:var(--teal);color:#fff;}
.wagon.current{background:var(--orange);color:#fff;transform:scale(1.12);}
.wagon.retry{background:#f4c04a;color:#5c4400;}
.q-card{background:#fff;border-radius:20px;box-shadow:var(--shadow);padding:34px 30px;text-align:center;}
.q-text{font-size:26px;font-weight:800;margin-bottom:18px;}
@media(max-width:520px){.q-text{font-size:20px;}.q-card{padding:24px 18px;}}
.q-input{font-size:20px;padding:12px 16px;border-radius:12px;border:2px solid var(--line);width:170px;text-align:center;outline:none;}
.q-input:focus{border-color:var(--teal);}
.q-feedback{margin-top:14px;font-weight:700;min-height:22px;}
.q-feedback.ok{color:#2c8c4d;}
.q-feedback.bad{color:#c0392b;}
.explain-box{margin-top:14px;background:#fff7e6;border:1.5px solid #ffd580;border-radius:12px;padding:14px 16px;text-align:left;font-size:13.5px;color:#6b4f00;}
.timer-badge{
  display:inline-flex;align-items:center;gap:6px;background:var(--navy);color:#fff;padding:8px 16px;border-radius:999px;font-weight:800;
  margin-bottom:16px;font-size:15px;
}
.progress-line{height:8px;background:#e5eae7;border-radius:999px;overflow:hidden;margin-bottom:12px;}
.progress-line > div{height:100%;background:var(--teal);transition:width .3s;}

/* class overview */
.classroom{
  max-width:900px;margin:0 auto;padding:8px 0 20px;display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:14px;
}
.desk{
  background:#fff;border-radius:16px;box-shadow:var(--shadow);padding:14px 10px;text-align:center;border:1.5px solid transparent;
  transition:transform .15s, border-color .15s;
}
.desk .nm{font-size:12.5px;font-weight:700;margin-top:6px;}
.desk .desk-hint{font-size:11px;color:var(--teal);font-weight:700;margin-top:4px;}
.desk:hover{transform:translateY(-3px);border-color:var(--teal);}

.compare-hint{
  text-align:center;color:var(--muted);font-size:14px;padding:8px 16px 0;
}

/* avatar shop */
.shop-wrap{max-width:1080px;margin:0 auto;padding:16px 20px 40px;}
.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px;}
.filter-chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:9px 16px;font-size:13px;font-weight:700;color:var(--ink);}
.filter-chip.active{background:var(--teal);color:#fff;border-color:var(--teal);}
.shop-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;}
.item-card{background:#fff;border-radius:14px;box-shadow:var(--shadow);padding:14px;text-align:center;border:1.5px solid transparent;}
.item-card:hover{border-color:var(--line);}
.item-preview{width:100%;height:110px;display:flex;align-items:center;justify-content:center;}
.item-name{font-size:12.5px;font-weight:700;margin-top:6px;min-height:32px;}
.item-price{font-size:13px;font-weight:800;color:var(--orange);margin-top:4px;}
.item-price.owned{color:#2c8c4d;}
.buy-btn{margin-top:8px;width:100%;border:none;border-radius:10px;padding:8px;font-weight:700;font-size:12.5px;background:var(--teal);color:#fff;}
.buy-btn.equipped{background:#2c8c4d;}
.buy-btn:disabled{background:#c9d2ce;color:#8a978f;}
.shop-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;flex-wrap:wrap;gap:10px;}
.shop-preview-card{
  display:flex;align-items:center;gap:16px;background:#fff;border-radius:16px;padding:12px 16px;box-shadow:var(--shadow);width:100%;
}

/* streak page */
.streak-wrap{max-width:560px;margin:0 auto;padding:28px 24px;text-align:center;}
.streak-num{font-size:64px;font-weight:900;color:var(--orange);line-height:1;}
.milestone-row{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:24px;}
.milestone{background:#fff;border-radius:12px;box-shadow:var(--shadow);padding:12px 14px;font-size:12.5px;font-weight:700;min-width:70px;}
.milestone.reached{background:var(--teal);color:#fff;}

/* admin / teacher */
.admin-wrap{max-width:1080px;margin:0 auto;padding:24px 20px;}
.admin-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:20px;}
.table-card{overflow-x:auto;padding:0;}
.table-card table{margin:0;}
table{width:100%;border-collapse:collapse;font-size:13.5px;}
th,td{padding:9px 10px;text-align:left;border-bottom:1px solid var(--line);}
th{color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.03em;}
.mini-btn{border:none;border-radius:8px;padding:7px 12px;font-size:12px;font-weight:700;background:var(--navy);color:#fff;}
.mini-btn.reset{background:var(--orange);}
.mini-btn.add{background:var(--teal);}
.form-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px;}
.form-row .plain-input,.form-row select{flex:1;min-width:120px;padding:9px 10px;border-radius:8px;border:1.5px solid var(--line);font-size:13px;}

.mgmt-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:20px;}
@media(max-width:640px){.mgmt-stats{grid-template-columns:1fr;}}
.mgmt-stat{
  background:#fff;border-radius:14px;box-shadow:var(--shadow);padding:16px 18px;
  border:1.5px solid transparent;
}
.mgmt-stat.alert{border-color:#f0b4a0;background:#fff8f5;}
.mgmt-stat .ms-val{font-size:28px;font-weight:900;line-height:1;color:var(--navy);}
.mgmt-stat .ms-label{margin-top:6px;font-size:12.5px;font-weight:600;color:var(--muted);}

.class-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;}
.class-card{
  text-align:left;background:#fff;border:1.5px solid var(--line);border-radius:18px;padding:18px;
  box-shadow:var(--shadow);transition:border-color .15s, transform .15s;
}
.class-card:hover{border-color:var(--teal);transform:translateY(-2px);}
.class-card-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px;}
.class-card-top h3{margin:0;font-size:22px;}
.class-count{font-size:12.5px;font-weight:700;color:var(--muted);}
.class-meta{margin:6px 0 14px;font-size:13px;color:var(--muted);}
.class-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;}
.class-metrics div{display:flex;flex-direction:column;gap:2px;}
.class-metrics strong{font-size:16px;}
.class-metrics span{font-size:11px;color:var(--muted);font-weight:600;}
.class-metrics .warn strong{color:#c0392b;}
.class-card-cta{margin-top:14px;font-size:13px;font-weight:800;color:var(--teal);}

.mgmt-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px;}
.klas-switch{display:flex;align-items:center;gap:8px;}
.klas-switch label{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;}
.klas-switch select{min-width:120px;padding:8px 10px;}
.mgmt-controls{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;}
.mgmt-search{flex:1;min-width:200px;}
.mgmt-toast{
  background:#eaf4f1;color:var(--teal-dark);border-radius:10px;padding:10px 14px;
  font-weight:700;font-size:13.5px;margin-bottom:12px;
}
.mgmt-table th,.mgmt-table td{vertical-align:middle;}
.mgmt-table.compact td,.mgmt-table.compact th{padding:8px 10px;}
.mgmt-table .row-attention{background:#fff8f5;}
.student-cell{display:flex;align-items:center;gap:10px;}
.student-cell .sc-name{font-weight:800;font-size:13.5px;}
.student-cell .sc-mail{font-size:11.5px;color:var(--muted);}
.progress-mini{display:flex;align-items:center;gap:8px;min-width:110px;}
.progress-mini-bar{flex:1;height:8px;background:#e5eae7;border-radius:999px;overflow:hidden;}
.progress-mini-bar > div{height:100%;background:var(--teal);}
.progress-mini span{font-size:12px;font-weight:800;min-width:36px;}
.badge{
  display:inline-flex;align-items:center;border-radius:999px;padding:4px 10px;
  font-size:11.5px;font-weight:800;
}
.badge.ok{background:#e5f6ea;color:#2c8c4d;}
.badge.warn{background:#fde8e6;color:#c0392b;}
.actions-cell{white-space:nowrap;}

.subtle{color:var(--muted);font-size:13px;}
.back-link{background:none;border:none;color:var(--teal);font-weight:700;font-size:13.5px;padding:6px 0;}
.section-label{font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--orange);text-transform:uppercase;margin-bottom:8px;}

.empty-state{
  text-align:center;padding:28px 18px;color:var(--muted);background:#fff;border-radius:16px;box-shadow:var(--shadow);
}
.empty-state h3{margin:0 0 6px;color:var(--ink);}
.empty-state p{margin:0 0 14px;}