@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--ink:#162b43;--muted:#6d7b8b;--blue:#1263df;--line:#e3e9f0;--pale:#f4f7fb}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--pale);font-family:'DM Sans',Arial,sans-serif;font-size:14px;line-height:1.6}h1,h2,h3,.brand{font-family:'Manrope',Arial,sans-serif}h1{font-size:29px;line-height:1.3;letter-spacing:-1px;margin:7px 0 0}h2{font-size:19px;line-height:1.4;margin:0 0 12px}h3{line-height:1.5;margin:8px 0}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.brand{display:flex;align-items:center;gap:7px;font-size:25px;font-weight:700;color:var(--ink);white-space:nowrap}.brand strong{color:var(--blue)}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:36px;height:40px;background:var(--blue);color:#fff;border-radius:11px;font-size:28px;margin-right:5px;font-style:italic}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:800;color:var(--blue);margin:0}.muted{color:var(--muted)}.sidebar{position:fixed;inset:0 auto 0 0;background:#fff;width:238px;padding:35px 25px;border-right:1px solid var(--line);display:flex;flex-direction:column}.sidebar-label{font-size:9px;letter-spacing:1.4px;color:#8995a3;font-weight:700;margin:50px 10px 15px}.sidebar nav{display:grid;gap:6px}.sidebar nav a{display:block;padding:12px 15px;border-radius:8px;color:#627086;font-weight:600}.sidebar nav a:hover,.sidebar nav a.active{color:var(--blue);background:#edf4ff;text-decoration:none}.sidebar-bottom{margin-top:auto;padding:20px 10px 0;display:grid;gap:10px}.sidebar-bottom a{font-size:13px}.admin-main{margin-left:238px;padding:40px 48px 70px;max-width:1700px}.admin-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:35px}.admin-name{border:1px solid var(--line);padding:9px 14px;background:white;border-radius:30px;font-size:12px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:27px}.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:25px}.stat span{color:var(--muted)}.stat strong{display:block;font-size:38px;line-height:1.3;margin-top:10px;letter-spacing:-1px}.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:27px;margin-bottom:25px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}.panel-heading h2{margin:0}.panel-heading a{font-size:12px}.table-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;text-align:left;font-size:12px}th{font-size:10px;text-transform:uppercase;letter-spacing:1px;color:#7c8998;border-bottom:1px solid var(--line);padding:12px 15px}td{padding:20px 15px;border-bottom:1px solid var(--line);vertical-align:top;min-width:145px}td strong,td a,td small{display:block}td small{color:var(--muted);font-size:11px;margin-top:4px}td details{margin-top:9px}td summary{cursor:pointer;color:var(--blue)}td p{max-width:320px}.preserve-lines{white-space:pre-wrap;overflow-wrap:anywhere}.pill{display:inline-block;border:1px solid #cbdced;background:#f1f6fc;color:#42658a;border-radius:30px;padding:3px 10px;font-size:10px;font-weight:600}.status-form{display:flex;gap:6px;align-items:center}.status-form select{min-width:100px;padding:8px;margin:0;font-size:11px}.status-form button{background:var(--blue);border:none;border-radius:6px;padding:10px;color:#fff;font-weight:600;cursor:pointer}.button{border:0;border-radius:8px;color:#fff;background:var(--blue);font:600 13px 'DM Sans',sans-serif;display:inline-flex;align-items:center;justify-content:center;gap:30px;padding:13px 20px;cursor:pointer}.button:hover{background:#0b51bd;text-decoration:none}.button.secondary{color:var(--ink);background:#f5f8fc;border:1px solid var(--line)}.button.secondary:hover{background:#e9f0fa}.button-row{display:flex;align-items:center;gap:20px;margin-top:22px}.text-button{padding:0;border:none;color:var(--blue);font:inherit;font-size:12px;background:none;cursor:pointer}.text-button:hover{text-decoration:underline}label{display:block;font-size:12px;font-weight:600;margin:0 0 18px}input,select,textarea{display:block;margin-top:7px;width:100%;padding:12px 13px;border:1px solid #d5deea;border-radius:7px;color:var(--ink);background:#fff;font:400 14px 'DM Sans',sans-serif;max-width:100%}input:focus,textarea:focus,select:focus{outline:2px solid #a9caff;outline-offset:2px}textarea{resize:vertical;min-height:90px}.checkbox{display:flex;align-items:center;gap:10px;font-weight:400}.checkbox input{width:16px;height:16px;margin:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.edit-form{max-width:950px}.course-list article{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:25px 0;border-bottom:1px solid var(--line)}.course-list article:last-child{border:0}.course-list h2{margin:8px 0 0}.course-list p{margin:5px 0 0;color:var(--muted);font-size:12px}.course-actions{display:flex;gap:22px;align-items:center}.course-actions strong{font-size:13px}.notice-layout{display:grid;grid-template-columns:minmax(280px,.8fr) 1fr;gap:25px}.notice-item{padding:20px 0;border-bottom:1px solid var(--line)}.notice-item p{color:var(--muted);font-size:13px}.notice-item small{font-size:10px;color:var(--muted)}.notice-item form{margin-top:8px}.pagination{display:flex;justify-content:center;gap:25px;font-size:12px;margin-top:20px}.alert{padding:15px 19px;border-radius:8px;margin:0 0 22px;font-size:13px}.alert.error{background:#fff1f1;border:1px solid #f4d1d1;color:#9e2c2c}.alert.success{background:#edf8f1;border:1px solid #c9e6d3;color:#287246}.empty-state{text-align:center;padding:40px;color:var(--muted)}.empty-state span{font-size:35px;color:var(--blue)}.empty-state h3{color:var(--ink)}.login-page{min-height:100vh;display:grid;place-items:center;padding:30px;background:radial-gradient(ellipse at 15% 20%,#e0ecff,transparent 60%),#f5f8fc}.login-card{width:440px;max-width:100%;background:#fff;border:1px solid var(--line);box-shadow:0 20px 80px #1539630a;border-radius:20px;padding:40px}.login-card .brand{margin-bottom:40px}.login-card h1{font-size:32px}.login-card .muted{font-size:13px;margin-bottom:25px}.login-card .button{width:100%;justify-content:space-between}.back-link{display:block;text-align:center;font-size:12px;margin-top:27px;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}@media(max-width:1100px){.admin-main{padding:30px 25px}.sidebar{width:205px;padding:30px 17px}.admin-main{margin-left:205px}.course-actions{flex-direction:column;align-items:flex-end;gap:12px}.notice-layout{grid-template-columns:1fr}.admin-name{display:none}}@media(max-width:700px){.sidebar{position:static;width:100%;padding:18px 20px;border-right:0;border-bottom:1px solid var(--line)}.sidebar-label,.sidebar-bottom{display:none}.sidebar nav{display:flex;overflow:auto;margin-top:15px;gap:4px}.sidebar nav a{font-size:12px;padding:8px 11px;white-space:nowrap}.admin-main{margin:0;padding:25px 17px}.admin-header{margin-bottom:25px}h1{font-size:24px}.stats-grid{gap:8px}.stat{padding:15px 12px}.stat span{font-size:10px}.stat strong{font-size:28px}.panel{padding:19px}.form-grid{grid-template-columns:1fr}.course-list article{align-items:flex-start}.course-actions strong{font-size:11px}.course-actions .button{font-size:11px;padding:10px}.course-list h2{font-size:17px}.panel-heading{align-items:flex-start}.panel-heading a{max-width:105px}.login-card{padding:30px}.button-row{flex-wrap:wrap}}