@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');
:root{--navy:#102641;--ink:#19314a;--muted:#66798b;--teal:#087f73;--pale:#e5f5ef;--line:#dce5e9;--bg:#f3f6f7;--white:#fff;--red:#a53232;--shadow:0 6px 25px #10264106}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 'DM Sans',system-ui,sans-serif}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--teal);background:var(--teal);color:#fff;border-radius:8px;padding:10px 18px;min-height:44px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap}button:hover,.button:hover{filter:brightness(.94);text-decoration:none}button:disabled{opacity:.6;cursor:wait}.button.subtle{background:transparent;color:var(--teal);border-color:var(--line);padding:7px 12px;min-height:36px}.topbar{background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px max(24px,calc((100% - 1240px)/2))}.brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:18px;font-weight:700;line-height:1.3}.brand:hover{text-decoration:none}.brand-icon{display:grid;place-items:center;background:#46d2ac;color:var(--navy);width:42px;height:42px;border-radius:12px;font-size:26px}.brand small{display:block;font-size:9px;letter-spacing:2px;font-weight:500;color:#b1c8d7;margin-top:5px}.account{display:flex;align-items:center;gap:16px;font-size:12px}.account .subtle{color:#fff;border-color:#456078}.nav{background:#fff;display:flex;gap:6px;padding:12px max(24px,calc((100% - 1240px)/2));border-bottom:1px solid var(--line);overflow-x:auto;white-space:nowrap}.nav a{padding:8px 13px;color:var(--muted);font-weight:500;border-radius:7px;font-size:14px}.nav .selected{color:var(--teal);background:var(--pale)}.container{max-width:1288px;margin:auto;padding:38px 24px}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:0 0 28px}.eyebrow{font:500 10px/1.5 'JetBrains Mono',monospace;letter-spacing:1.7px;color:var(--teal);margin:0 0 10px}h1,h2,h3{line-height:1.25;letter-spacing:-.5px;margin:0 0 14px}h1{font-size:clamp(26px,3.5vw,36px);font-weight:600}h2{font-size:21px;font-weight:600}h3{font-size:17px;margin-top:26px}p{margin:0 0 16px}.muted{color:var(--muted)}.small{font-size:12px}.mono{font:13px 'JetBrains Mono',monospace}.panel{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:26px;margin-bottom:24px;box-shadow:var(--shadow);min-width:0}.columns{display:grid;grid-template-columns:1fr 1fr;gap:24px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.stat span{font-size:13px}.stat strong{display:block;font-size:38px;font-weight:500;line-height:1.2;margin-top:18px}.stats .panel:nth-child(4){background:var(--teal);color:#fff;border-color:var(--teal)}.stats .panel:nth-child(4) .muted{color:#cdebe3}.form-grid{display:grid;gap:16px}.form-grid.two{grid-template-columns:1fr 1fr}label{display:flex;flex-direction:column;gap:6px;font-size:12px;font-weight:600;color:var(--ink)}input,select{width:100%;min-width:0;min-height:44px;background:#fff;border:1px solid #ccd8df;border-radius:7px;padding:10px 12px;color:var(--ink);font-size:14px}input:focus,select:focus,button:focus-visible,a:focus-visible{outline:3px solid #65bea477;outline-offset:2px}input[type=file]{padding:8px}.check{flex-direction:row;align-items:center;gap:9px;font-weight:500}.check input{width:17px;min-height:17px;height:17px;accent-color:var(--teal)}.filter-bar{display:flex;align-items:flex-end;flex-wrap:wrap;gap:16px;margin-bottom:22px}.filter-bar label{flex:1;min-width:180px}.filter-bar a{padding:10px 0}.row{display:flex;align-items:center;justify-content:space-between;gap:16px}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:14px}.actions form{margin:0}.table-wrap{overflow-x:auto;margin-top:22px}table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}th{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--muted);font-weight:500;background:#f6f8f9;border-top:1px solid var(--line)}th,td{padding:13px 12px;border-bottom:1px solid var(--line);vertical-align:middle}td small{display:block;color:var(--muted);font-size:11px;overflow-wrap:anywhere}td .actions{margin:0}.preview-table{max-height:380px}.badge{font-size:11px;font-weight:600;border-radius:30px;padding:5px 12px;background:#edf1f4;color:#52677a;white-space:nowrap;display:inline-block}.badge.positive{background:var(--pale);color:var(--teal)}.notice{padding:14px 18px;border-radius:8px;margin-bottom:22px;font-size:14px;overflow-wrap:anywhere}.notice.success{background:#e5f5ee;color:#1b6752;border:1px solid #bde4d4}.notice.error{background:#fff0ef;color:var(--red);border:1px solid #efcbc8}.code-block{display:block;background:#f0f5f6;padding:17px;font-size:12px;border-radius:8px;overflow-wrap:anywhere;white-space:normal;margin:18px 0}.steps{padding-left:28px;margin:22px 0 0}.steps li{padding:0 0 12px 10px}.steps li::marker{color:var(--teal);font-weight:700}.steps a{font-weight:600}.steps p{font-size:13px;color:var(--muted);margin:5px 0}.footer{display:flex;justify-content:space-between;margin-top:40px;padding-top:20px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.login-card{max-width:540px;margin:38px auto;padding:40px}.login-card h1{margin-bottom:20px}.login-card #google-signin{margin-top:26px}.login-card #signin-status{margin-top:12px}.session-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.session-card .eyebrow{margin:0}.session-card h2{margin-top:22px}.session-card .time{padding-top:16px;border-top:1px solid var(--line);font-size:13px}.session-card button{width:100%;margin-top:10px}.student-strip{display:flex;align-items:center;justify-content:space-between;border-left:4px solid var(--teal);padding:14px 20px;margin:0 0 24px;background:var(--pale);border-radius:0 8px 8px 0}.student-strip h2{margin:4px 0 0;font-size:20px}.empty{text-align:center;padding:50px}.empty p{color:var(--muted);max-width:480px;margin:auto}.text-link{font-size:13px;white-space:nowrap}
@media(max-width:1000px){.stats{grid-template-columns:repeat(2,1fr)}.session-grid{grid-template-columns:repeat(2,1fr)}.columns{grid-template-columns:1fr}.account>span{max-width:190px;overflow:hidden;text-overflow:ellipsis}.nav{padding-left:14px;padding-right:14px}}
@media(max-width:600px){.topbar{padding:18px 16px;gap:10px}.brand{font-size:15px}.brand small{font-size:7px;letter-spacing:1px}.brand-icon{width:34px;height:34px}.account>span{display:none}.container{padding:26px 16px}.page-heading{align-items:flex-start;flex-direction:column;gap:8px}.panel{padding:20px}.form-grid.two,.session-grid{grid-template-columns:1fr}.stats{gap:12px}.stat strong{font-size:30px}.stat span{font-size:11px}.row{flex-wrap:wrap}.filter-bar{gap:12px}.filter-bar label{min-width:100%}.login-card{padding:28px 22px}.footer{gap:14px;flex-direction:column}.student-strip{gap:14px;align-items:flex-start;flex-direction:column}button,input,select{font-size:16px}.nav a{font-size:12px;padding:7px 10px}.check{font-size:13px}}