:root{--bg: #f5f6f8;--card: #fff;--text: #1d2330;--muted: #6b7280;--border: #e3e6eb;--primary: #2563eb;--primary-text: #fff;--danger: #dc2626;--ok-bg: #dcfce7;--ok-text: #166534;--badge-bg: #eef0f3;--warn-bg: #fff7e6;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--bg)}@media (prefers-color-scheme: dark){:root{--bg: #12151b;--card: #1b1f27;--text: #e6e8ec;--muted: #9aa2b1;--border: #2c323d;--primary: #3b82f6;--badge-bg: #2a303b;--ok-bg: #14361f;--ok-text: #86efac;--warn-bg: #3a2f17}}*{box-sizing:border-box}body{margin:0;background:var(--bg)}h1{font-size:1.6rem;margin:.2rem 0 1rem}h2{font-size:1.15rem;margin:0 0 .75rem}a{color:var(--primary);text-decoration:none}.container{max-width:1100px;margin:0 auto;padding:1.5rem 16px 4rem}.center{text-align:center;padding:3rem}.muted{color:var(--muted)}.small{font-size:.85rem}.error{white-space:pre-line;color:var(--danger);background:color-mix(in srgb,var(--danger) 10%,transparent);padding:.6rem .8rem;border-radius:8px}.row{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center;margin:.5rem 0}.crumbs{margin:0 0 .5rem}.topbar{display:flex;align-items:center;gap:1.5rem;padding:.6rem 16px;background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:5}.brand{font-weight:700;color:var(--text);white-space:nowrap}.topbar nav{display:flex;gap:1rem;flex:1}.topbar nav a{color:var(--muted)}.topbar nav a.active{color:var(--text);font-weight:600}.user{display:flex;align-items:center;gap:.5rem}.user img{width:28px;height:28px;border-radius:50%}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.1rem 1.2rem;margin-bottom:1rem}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;flex-wrap:wrap;margin-bottom:.5rem}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem}.course-card{color:var(--text);display:flex;flex-direction:column;gap:.35rem;transition:border-color .15s}.course-card:hover{border-color:var(--primary)}.course-card h2{margin:.2rem 0 0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:1rem}@media (max-width: 760px){.two-col{grid-template-columns:1fr}.hide-sm{display:none}.topbar{gap:.75rem}}.btn{border:1px solid var(--border);background:var(--card);color:var(--text);padding:.45rem .9rem;border-radius:8px;cursor:pointer;font:inherit;display:inline-block;white-space:nowrap}.btn:hover{border-color:var(--primary)}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--primary);border-color:var(--primary);color:var(--primary-text)}.btn.danger{color:var(--danger)}.btn.danger:hover{border-color:var(--danger)}.btn.ghost{background:transparent;border-color:transparent}.btn.small{padding:.25rem .6rem;font-size:.85rem}.link{background:none;border:none;color:var(--primary);cursor:pointer;padding:0;font:inherit;text-align:left}input,select,textarea{font:inherit;padding:.45rem .6rem;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--text);width:100%}.form{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.8rem}.form label{display:flex;flex-direction:column;gap:.3rem;font-size:.9rem;color:var(--muted)}.form .full{grid-column:1 / -1}.form.inline{margin-top:1rem;grid-template-columns:2fr 2fr auto}@media (max-width: 760px){.form.inline{grid-template-columns:1fr}}.badge{display:inline-block;font-size:.75rem;padding:.15rem .5rem;border-radius:99px;background:var(--badge-bg);color:var(--muted)}.badge.ok{background:var(--ok-bg);color:var(--ok-text)}.badge.new{background:var(--primary);color:var(--primary-text)}.list{list-style:none;padding:0;margin:0}.list li{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.7rem 0;border-top:1px solid var(--border)}.list li:first-child{border-top:none}.list.compact li{padding:.4rem 0}.list.scroll{max-height:360px;overflow-y:auto}.check{display:flex;gap:.6rem;align-items:center;cursor:pointer}.check input{width:auto}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.55rem .5rem;border-bottom:1px solid var(--border);vertical-align:middle}th{font-size:.8rem;color:var(--muted);font-weight:600;text-transform:uppercase}tr.unassigned td{background:var(--warn-bg)}td select{min-width:220px}.dropzone{border:2px dashed var(--border);border-radius:12px;padding:2rem 1rem;text-align:center;color:var(--muted);cursor:pointer;margin-bottom:1rem;background:var(--card)}.dropzone.drag,.dropzone:hover{border-color:var(--primary);color:var(--text)}.login{min-height:100vh;display:grid;place-items:center;padding:16px}.login-card{max-width:420px;width:100%;text-align:center}.google-btn{display:flex;justify-content:center;margin:1.5rem 0;min-height:44px}.dev-login{display:flex;flex-direction:column;gap:.5rem;border-top:1px solid var(--border);padding-top:1rem}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:grid;place-items:center;z-index:20;padding:16px}.modal{background:var(--card);border-radius:12px;width:100%;max-width:1000px;display:flex;flex-direction:column;overflow:hidden}.pdf-modal{height:92vh}.modal-head{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.6rem 1rem;border-bottom:1px solid var(--border);flex-wrap:wrap}.modal-head .row{margin:0}.pdf-modal iframe{flex:1;border:none;width:100%;background:#525659}.notice{background:var(--ok-bg);color:var(--ok-text);padding:.6rem .8rem;border-radius:8px}.form-modal{max-width:640px;max-height:90vh}.modal-body{padding:1rem;overflow-y:auto}.tabs{display:flex;gap:.25rem;border-bottom:1px solid var(--border);margin:.5rem 0 1rem;overflow-x:auto}.tabs button{background:none;border:none;border-bottom:2px solid transparent;padding:.6rem .9rem;font:inherit;color:var(--muted);cursor:pointer;white-space:nowrap}.tabs button.active{color:var(--text);border-bottom-color:var(--primary);font-weight:600}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85rem}details.ra{border-top:1px solid var(--border);padding:.6rem 0}details.ra:first-of-type{border-top:none}details summary{cursor:pointer}.criteria{margin:.5rem 0 .25rem;padding-left:1.2rem;font-size:.9rem}.criteria li{margin:.25rem 0}.num{text-align:right;white-space:nowrap}td.fail,.grade.fail{color:var(--danger);font-weight:600}.grade{font-weight:600}.nowrap{white-space:nowrap}table.grades td,table.grades th{padding:.35rem .4rem}table.grades tbody tr:hover td{background:color-mix(in srgb,var(--primary) 6%,transparent)}input.score{width:4.2rem;text-align:right;padding:.3rem .4rem}input.score.bad{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 10%,transparent)}.ra-summary{margin-bottom:1rem}.ra-summary td{vertical-align:top}h3{font-size:1rem;margin:1rem 0 .25rem}.compact-table{margin-top:.4rem;width:auto}.compact-table td{padding:.15rem .6rem .15rem 0;border:none}.badge+.badge,summary .badge{margin-left:.3rem}.warn{color:#d97706;cursor:help}.preview-banner{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;background:var(--warn-bg);border:1px solid var(--border);border-radius:10px;padding:.7rem 1rem;margin-bottom:1rem}th.group{text-align:center;border-left:1px solid var(--border)}td.sep,th.sep{border-left:1px solid var(--border)}
