:root{--bg:#f3f6f5;--card:#fff;--ink:#14231f;--muted:#5d716b;--line:#d6e0dc;--accent:#0d7a69;--accent2:#d3ece6;--bad:#b3261e;--bad2:#fbe5e2;--ok:#17794a;--ok2:#dff3e7;--warn:#8a5a00;--warn2:#faf0d6}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 'Hind Siliguri',system-ui,sans-serif}
a{color:var(--accent)}
.top{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:.6rem 1rem;background:var(--card);border-bottom:1px solid var(--line)}
.brand{font-weight:700;font-size:1.1rem;text-decoration:none;color:var(--accent)}
.top nav{display:flex;gap:.9rem;flex-wrap:wrap;align-items:center;font-size:.95rem}
.top nav a{text-decoration:none}
.wrap{max-width:1000px;margin:0 auto;padding:1rem}
h1{font-size:1.5rem;margin:.6rem 0}
h2{font-size:1.15rem;margin:1.4rem 0 .5rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1rem;margin-bottom:1rem}
.flash{background:var(--warn2);color:var(--warn);border:1px solid #e3c978;padding:.6rem .9rem;border-radius:8px;margin-bottom:1rem}
label{display:block;font-weight:600;margin:.6rem 0 .2rem}
input,select,textarea{width:100%;padding:.55rem .7rem;border:1px solid var(--line);border-radius:8px;background:#fff;font:inherit}
textarea{min-height:7rem}
.btn{display:inline-block;padding:.5rem 1.1rem;border:1px solid var(--accent);background:var(--accent);color:#fff;border-radius:8px;cursor:pointer;font:inherit;font-weight:600;text-decoration:none}
.btn.ghost{background:transparent;color:var(--accent)}
.btn.danger{background:transparent;color:var(--bad);border-color:var(--bad)}
.btn.sm{padding:.2rem .7rem;font-size:.88rem}
.grid{display:grid;gap:.8rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.tile{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.8rem 1rem}
.tile b{display:block;font-size:1.8rem;line-height:1.2}
.tile span{color:var(--muted);font-size:.9rem}
.tablewrap{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;width:100%;font-size:.93rem}
th,td{padding:.5rem .7rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;white-space:nowrap}
td.wrapt{white-space:normal;min-width:14rem}
th{background:#eef3f1;font-weight:600}
tr:last-child td{border-bottom:0}
.tag{display:inline-block;padding:.05rem .55rem;border-radius:999px;font-size:.8rem;font-weight:600;background:var(--accent2);color:var(--accent)}
.tag.off{background:#e5e8e7;color:var(--muted)}
.tag.bad{background:var(--bad2);color:var(--bad)}
.tag.ok{background:var(--ok2);color:var(--ok)}
.muted{color:var(--muted)}
.row{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center}
.row form{display:inline}
.bar{height:8px;background:#e3ebe8;border-radius:4px;overflow:hidden;min-width:6rem}
.bar i{display:block;height:100%;background:var(--accent)}
.center{max-width:26rem;margin:2rem auto}
.big{font-size:2.4rem;font-weight:700;line-height:1.1}
.quizbar{display:flex;align-items:center;gap:.8rem;justify-content:space-between;padding:.4rem .8rem;background:var(--card);border-bottom:1px solid var(--line);height:48px}
.quizbar .t{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
iframe.q{display:block;width:100%;height:calc(100vh - 48px);height:calc(100dvh - 48px);border:0}