@font-face{font-family:Raleway;src:url("fonts/Raleway.ttf") format("truetype");font-weight:100 900;font-style:normal;font-display:swap}
:root{font-family:Raleway,system-ui,sans-serif;color:#142033;background:#f7f9fc;font-synthesis:none;--primary:#1f2f63;--accent:#4f74f9;--muted:#61708f}*{box-sizing:border-box}body{margin:0;display:flex;min-height:100vh;background:radial-gradient(circle at top left,#4f74f925,transparent 35%),radial-gradient(circle at bottom right,#1f2f6315,transparent 30%),linear-gradient(180deg,#f7f9fc,#eef3f9)}aside{width:230px;flex-shrink:0;background:linear-gradient(160deg,#1f2f63,#2d448d);color:#dce5ff;padding:34px 24px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column}.brand{font-size:26px;font-weight:800;color:var(--primary);text-decoration:none;letter-spacing:-.6px}aside .brand{color:white}.nav{margin-top:48px;border-radius:14px;padding:15px;background:#ffffff20;font-weight:600}.aside-note{margin-top:auto;line-height:1.8;font-size:14px;color:#d0dcff}.badge{font-size:10px;letter-spacing:1.8px;border-top:1px solid #ffffff30;padding-top:20px}main{margin-left:230px;padding:40px;width:calc(100% - 230px);max-width:1600px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding:32px;background:linear-gradient(135deg,#1f2f63,#2d448d);border-radius:24px;color:white;box-shadow:0 12px 35px #14203312;gap:20px}header p,header .eyebrow{color:#d7e2ff}.eyebrow{font-size:11px;letter-spacing:1.8px;font-weight:800;color:var(--accent)}h1{font-size:36px;letter-spacing:-1px;margin:8px 0;font-weight:800}h2{font-size:21px;margin:0 0 12px;font-weight:700;color:var(--primary)}h3{font-size:17px;margin:0 0 8px;color:var(--primary)}p{line-height:1.65;color:var(--muted);margin:8px 0 18px}button,a.button{background:var(--primary);color:white;padding:12px 18px;border:0;border-radius:999px;font:inherit;font-size:14px;font-weight:700;cursor:pointer;transition:background .18s,box-shadow .18s}button:hover,a.button:hover{background:var(--accent);box-shadow:0 5px 16px #4f74f924}button:focus-visible,a:focus-visible{outline:3px solid #4f74f9;outline-offset:4px}button:disabled{opacity:.5;cursor:wait}.quiet{background:#eaf0ff;color:var(--primary)}.quiet:hover{color:white}.danger{background:#fff0ed;color:#a2382d}.danger:hover{background:#a2382d;color:white}.summary{display:flex;background:#ffffffb8;border:1px solid #e1e7f2;border-radius:18px;padding:22px 28px;margin-bottom:30px;gap:40px}.summary div{display:flex;align-items:center;gap:14px}.summary strong{font-size:32px;color:var(--primary)}.summary span{font-size:13px;color:var(--muted)}.columns{display:grid;grid-template-columns:1fr 1.12fr;gap:24px}.section-title{display:flex;justify-content:space-between;align-items:center;min-height:45px;margin-bottom:12px;gap:12px}.section-title h2{margin:0}.card{background:#ffffffeb;border:1px solid #e1e7f2;padding:26px;border-radius:18px;margin-bottom:18px;box-shadow:0 8px 28px #14203306}.subtle{background:transparent;border-style:dashed;box-shadow:none}.chips{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0}.chip{font-size:12px;border-radius:8px;background:#edf1fc;padding:7px 10px;overflow-wrap:anywhere;color:var(--primary)}.actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px;flex-wrap:wrap}.code{font-size:32px;letter-spacing:5px;font-weight:800;display:block;margin:12px 0;color:var(--accent);font-variant-numeric:lining-nums}.muted,small{font-size:12px;color:var(--muted);line-height:1.65}.student{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:13px 0;border-top:1px solid #e9edf5}.student small{display:block}.dot{color:#168356}.empty{padding:34px 24px;border:1px dashed #c9d4e8;border-radius:18px;color:var(--muted);line-height:1.7;margin-bottom:16px}label{display:block;font-size:14px;font-weight:600;margin:16px 0 8px}input:not([type=checkbox]),textarea{display:block;width:100%;padding:14px;border:1px solid #d5ddec;border-radius:10px;font:inherit;margin-top:8px;background:#f7f9fc;color:var(--text)}input:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:2px}dialog{width:560px;max-width:95vw;border:1px solid #e1e7f2;border-radius:24px;padding:32px;box-shadow:0 20px 100px #14203330}dialog::backdrop{background:#14203370}fieldset{border:0;padding:0;margin-top:22px}legend{font-weight:600;font-size:14px}.check{display:inline-flex;align-items:center;gap:8px;margin-right:18px;font-weight:400}footer{font-size:12px;color:var(--muted);margin-top:40px;border-top:1px solid #dfe5ef;padding-top:20px}#notice{background:#fff0dc;color:#735629;padding:12px;border-radius:10px;margin-bottom:15px}#formError,#liveError,#error{color:#a42c29}#login{max-width:480px}[hidden]{display:none!important}.portal{display:block}.portal main{margin:0 auto;max-width:800px;width:100%;padding:32px 24px}.portal main>.brand{display:inline-block;background:white;border-radius:999px;padding:12px 22px;margin-bottom:24px;box-shadow:0 6px 20px #1420330a}.portal header{padding:36px}.portal h1{font-size:38px}.portal a.button{display:inline-block;text-decoration:none;margin:8px 0}.steps{line-height:1.9;padding-left:22px}a{color:#3158ce}.portal #code{font-size:24px;letter-spacing:5px;font-variant-numeric:lining-nums}
@media(max-width:1100px){.columns{grid-template-columns:1fr}.summary{gap:24px;flex-wrap:wrap}main{padding:28px}header{padding:26px}}@media(max-width:650px){aside{display:none}main{margin:0;width:100%;padding:20px}.summary{flex-wrap:wrap}h1,.portal h1{font-size:29px}header{padding:24px;align-items:flex-start;flex-direction:column}.portal header{padding:26px}.card{padding:22px}}


.join-submit { margin-top: 18px; }

#dropFiles,#liveDropFiles{display:block;padding:20px;border:2px dashed #4f74f9;border-radius:12px;background:#f5f7ff}#filePicker,#liveFilePicker{display:block;margin-top:12px}.file-row{padding:12px 0;border-bottom:1px solid #ddd}.file-row label{display:block;margin:8px 0}.file-row input[type=checkbox]{width:auto}