/* Teacher portal – builds on admin.css */
body.teacher{background:#F3F6FB}
.login-logo{height:64px;width:auto;margin:0 auto 6px;display:block}
.t-top{position:sticky;top:0;z-index:30;background:var(--ink);color:#fff;padding:10px max(16px,env(safe-area-inset-left,0px));display:flex;align-items:center;gap:12px}
.t-top .who{font-weight:700;margin-right:auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.t-top .who small{display:block;font-weight:500;color:#C8D0EE;font-size:.78rem}
.t-top a{color:#C8D0EE;font-weight:600;text-decoration:none;font-size:.9rem}
.t-nav{display:flex;gap:6px;padding:10px max(16px,env(safe-area-inset-left,0px));background:#fff;border-bottom:1px solid var(--line);overflow-x:auto;position:sticky;top:52px;z-index:29}
.t-nav button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px;font-weight:700;cursor:pointer;white-space:nowrap;color:var(--ink)}
.t-nav button[aria-current=true]{background:var(--pri);border-color:var(--pri);color:#fff}
.t-nav .badge{background:var(--sun);color:var(--ink);border-radius:999px;font-size:.72rem;padding:1px 7px;margin-left:4px}
.t-view{padding:18px max(16px,env(safe-area-inset-left,0px)) 110px;max-width:1000px;margin:0 auto}
.hello{margin-bottom:14px}.hello h1{margin:0}
.todo{display:grid;gap:8px}
.todo .row{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;flex-wrap:wrap}
.todo .row .grow{margin-right:auto;min-width:0}
.todo .row strong{display:block}
.pick{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media (max-width:640px){.pick{grid-template-columns:1fr}}
.sum-bar{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 4px}
.sum-bar span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:.85rem;font-weight:600}
.acts{display:flex;flex-wrap:wrap;gap:8px}
.acts label{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 12px;font-weight:600;font-size:.88rem;cursor:pointer}
.acts input{width:16px;height:16px}
.acts label:has(input:checked){border-color:var(--pri);background:#EEF4FF}
.range-row{display:flex;align-items:center;gap:12px}
.range-row input[type=range]{flex:1;accent-color:var(--pri)}
.range-row output{font-weight:700;min-width:48px;text-align:right}
/* students */
.st-tools{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 12px}
.st-list{display:grid;gap:10px}
.st{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;display:grid;gap:8px}
.st-h{display:flex;align-items:center;gap:8px;font-weight:700}
.st-h .roll{font-size:.75rem;color:var(--soft);font-weight:600}
.st-row{display:grid;grid-template-columns:96px 1fr;gap:8px;align-items:center}
.st-row>span{font-size:.8rem;color:var(--soft);font-weight:600}
.seg{display:flex;flex-wrap:wrap;gap:4px}
.seg button{border:1px solid #CBD5E8;background:#fff;border-radius:8px;padding:6px 10px;font-size:.82rem;font-weight:600;cursor:pointer;color:var(--ink)}
.seg button[aria-pressed=true]{color:#fff;border-color:transparent}
.seg button[aria-pressed=true].c-ok{background:#21862F}.seg button[aria-pressed=true].c-mid{background:#C98A00}
.seg button[aria-pressed=true].c-bad{background:#B0174A}.seg button[aria-pressed=true].c-off{background:#6B7280}
.seg button[aria-pressed=true].c-top{background:var(--pri)}
.st input[type=text]{width:100%;border:1px solid #CBD5E8;border-radius:8px;padding:7px 10px}
@media (max-width:520px){.st-row{grid-template-columns:1fr}}
.save-bar{position:fixed;left:0;right:0;bottom:0;z-index:40;background:#fff;border-top:1px solid var(--line);padding:10px max(16px,env(safe-area-inset-left,0px)) calc(10px + env(safe-area-inset-bottom,0px));display:flex;gap:10px;align-items:center;justify-content:flex-end}
.save-bar .state{margin-right:auto;font-size:.88rem;color:var(--soft);font-weight:600}
.task{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;display:grid;gap:10px}
.task h3{margin:0}
.task .meta{display:flex;flex-wrap:wrap;gap:8px;font-size:.85rem;color:var(--soft)}
.pbar{height:8px;background:var(--line);border-radius:8px;overflow:hidden}.pbar i{display:block;height:100%;background:var(--pri)}
.empty{background:#fff;border:1px dashed #B8C6E3;border-radius:14px;padding:22px;text-align:center;color:var(--soft)}