:root{
  --bg:#f5f8f7;--surface:#fff;--text:#19312f;--muted:#6b7c79;--brand:#2b6f69;--brand-2:#dceeea;
  --accent:#b8d6cf;--line:#dfe8e5;--danger:#a33b3b;--warning:#956b17;--ok:#29765d;--shadow:0 12px 36px rgba(27,61,57,.10);
  --radius:20px;
}
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.45}
button,input{font:inherit} button{cursor:pointer}.hidden{display:none!important}
.shell{min-height:100vh}.topbar{height:76px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}.mark{width:42px;height:42px;border-radius:13px;background:var(--brand);color:white;display:grid;place-items:center;font-weight:900;letter-spacing:-1px}.brand small{display:block;color:var(--muted);font-weight:600;font-size:12px;margin-top:1px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--brand-2);display:grid;place-items:center;font-weight:800}.userbox{display:flex;gap:10px;align-items:center}.userbox .meta{font-size:13px;text-align:right}.userbox .meta span{display:block;color:var(--muted)}
.layout{display:grid;grid-template-columns:235px 1fr;min-height:calc(100vh - 76px)}.sidebar{padding:24px 16px;border-right:1px solid var(--line);background:#fbfcfc}.navbtn{width:100%;border:0;background:transparent;padding:12px 13px;border-radius:13px;text-align:left;color:#45615d;font-weight:650;margin-bottom:6px}.navbtn:hover,.navbtn.active{background:var(--brand-2);color:var(--brand)}.navbtn.danger{margin-top:26px;color:#8d4848}.content{padding:32px;max-width:1280px;width:100%;margin:0 auto}
.kicker{color:var(--brand);font-weight:800;font-size:13px;text-transform:uppercase;letter-spacing:.08em}.hero h1{font-size:34px;line-height:1.1;margin:7px 0 9px}.hero p{margin:0;color:var(--muted);max-width:760px}.grid{display:grid;gap:18px}.stats{grid-template-columns:repeat(4,1fr);margin:28px 0}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 4px 18px rgba(27,61,57,.04)}.stat .num{font-size:29px;font-weight:850;margin-top:10px}.stat .label{font-size:13px;color:var(--muted)}
.sectionhead{display:flex;justify-content:space-between;align-items:center;margin:30px 0 12px}.sectionhead h2{font-size:21px;margin:0}.sectionhead p{margin:0;color:var(--muted);font-size:14px}.coursegrid{grid-template-columns:repeat(2,minmax(0,1fr))}.course h3{margin:7px 0 6px;font-size:19px}.course p{color:var(--muted);font-size:14px;margin:0 0 16px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;padding:6px 9px;border-radius:999px;background:#eef4f2;color:#46655f;font-size:12px;font-weight:750}.badge.warn{background:#fff3d8;color:var(--warning)}.badge.ok{background:#e2f3ec;color:var(--ok)}.badge.danger{background:#fbe8e8;color:var(--danger)}
.progress{height:8px;background:#e6edeb;border-radius:99px;overflow:hidden;margin:15px 0}.progress>i{display:block;height:100%;background:var(--brand);border-radius:99px}.btn{border:0;background:var(--brand);color:white;font-weight:800;border-radius:12px;padding:11px 15px}.btn.secondary{background:var(--brand-2);color:var(--brand)}.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--line)}.btn.full{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed}
.login{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;background:white}.login-side{background:linear-gradient(155deg,#245f5a,#3d817a);color:white;padding:64px;display:flex;flex-direction:column;justify-content:space-between}.login-side h1{font-size:50px;line-height:1.02;margin:22px 0;max-width:620px}.login-side p{font-size:18px;max-width:560px;color:#e1f0ec}.login-cardwrap{display:grid;place-items:center;padding:32px}.login-card{width:min(430px,100%)}.login-card h2{font-size:30px;margin-bottom:8px}.login-card>p{color:var(--muted);margin-top:0}.field{margin:18px 0}.field label{font-size:13px;font-weight:800;display:block;margin-bottom:7px}.field input{width:100%;padding:13px 14px;border:1px solid #cddbd7;border-radius:12px;outline:none}.field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,111,105,.12)}.demo{margin-top:18px;padding:14px;border-radius:14px;background:#f3f7f6;font-size:13px;color:#536b67}.demo button{margin-top:9px;margin-right:7px}
.lesson-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:20px}.lessonnav .chapter{padding:12px;border-radius:12px;margin-bottom:7px;border:1px solid var(--line);font-size:13px;font-weight:700}.lessonnav .chapter.done{background:#ecf6f2}.lessonnav .chapter.current{border-color:var(--brand);color:var(--brand)}.lesson h2{font-size:28px;margin-top:4px}.lesson h3{margin-top:28px}.callout{padding:15px 17px;border-radius:14px;background:#eef6f4;border-left:4px solid var(--brand);margin:18px 0}.notice{padding:14px 16px;border-radius:13px;background:#fff7e5;color:#6f561f;font-size:13px;margin:14px 0}
.quizq{padding:18px;border:1px solid var(--line);border-radius:16px;margin:15px 0}.quizq h4{margin:0 0 12px}.option{display:block;padding:10px 12px;border:1px solid var(--line);border-radius:11px;margin:8px 0;cursor:pointer}.option:hover{background:#f7faf9}.option input{margin-right:8px}.result{padding:20px;border-radius:16px;margin-top:18px}.result.ok{background:#e8f5f0;color:#245f4c}.result.bad{background:#fcebea;color:#863f3f}
.tablewrap{overflow:auto}.table{width:100%;border-collapse:collapse;background:white;border-radius:16px;overflow:hidden}.table th,.table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:13px}.table th{color:#5d716e;background:#f6f9f8}.table tr:last-child td{border-bottom:0}.cert{border:1px solid var(--line);background:white;border-radius:20px;padding:24px;display:flex;justify-content:space-between;gap:18px;align-items:center}.cert h3{margin:0 0 5px}.cert p{margin:0;color:var(--muted);font-size:13px}
.mobile-nav{display:none}
@media(max-width:900px){.login{grid-template-columns:1fr}.login-side{display:none}.layout{grid-template-columns:1fr}.sidebar{display:none}.content{padding:22px 16px 90px}.stats{grid-template-columns:repeat(2,1fr)}.coursegrid{grid-template-columns:1fr}.lesson-layout{grid-template-columns:1fr}.lessonnav{display:none}.topbar{height:66px;padding:0 15px}.userbox .meta{display:none}.mobile-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;background:white;border-top:1px solid var(--line);z-index:30;padding:7px 6px calc(7px + env(safe-area-inset-bottom))}.mobile-nav button{border:0;background:transparent;padding:8px 3px;color:#627672;font-size:11px;font-weight:750}.mobile-nav button.active{color:var(--brand)}.hero h1{font-size:28px}.stats .card{padding:15px}.stat .num{font-size:24px}.cert{align-items:flex-start;flex-direction:column}}
.toolbar{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin:18px 0}.formcard{max-width:860px}.formgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field textarea,.field select{width:100%;padding:13px 14px;border:1px solid #cddbd7;border-radius:12px;background:white;outline:none}.field textarea{min-height:130px;resize:vertical}.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,111,105,.12)}.wide{grid-column:1/-1}.actions{display:flex;gap:8px;flex-wrap:wrap}.btn.small{padding:8px 10px;font-size:12px}.muted{color:var(--muted)}.split{display:grid;grid-template-columns:1fr 1fr;gap:18px}.alert{padding:13px 15px;border-radius:12px;margin:14px 0}.alert.ok{background:#e7f5ef;color:#245f4c}.alert.bad{background:#fdecec;color:#863f3f}.admin-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.admin-tabs a{padding:9px 12px;border-radius:10px;text-decoration:none;color:var(--brand);font-weight:750;border:1px solid var(--line);background:white}.admin-tabs a.active{background:var(--brand);color:white}.course-content p{max-width:780px}.course-content ul{max-width:780px}.course-meta{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 18px}.empty{padding:26px;text-align:center;color:var(--muted)}
@media(max-width:760px){.formgrid,.split{grid-template-columns:1fr}.wide{grid-column:auto}.toolbar{align-items:stretch}.toolbar .actions{width:100%}.toolbar .actions .btn{flex:1;text-align:center}.table th,.table td{white-space:nowrap}}
.employee-picker{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:14px 0 18px}.employee-picker label{display:flex;gap:8px;align-items:center;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#fbfcfc;font-size:13px}.employee-picker input{width:auto}.actions a{text-decoration:none}
@media(max-width:760px){.employee-picker{grid-template-columns:1fr}}

/* v0.7 admin tools */
.filterbar{margin-top:20px;padding:20px}.editor-item{border-top:1px solid #e6ece9;padding:12px 0}.editor-item summary{cursor:pointer;padding:6px 0}.editor-item form{margin-top:12px}.inlineform{display:inline}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.btn.danger{background:#a23939;color:#fff;border-color:#a23939}.btn.danger:hover{filter:brightness(.95)}

/* v0.8 dashboard, groups & system */
.notice-center{margin:22px 0}.notice-line{padding:11px 13px;border-radius:12px;margin-top:8px;font-size:14px;font-weight:650}.notice-line.warn{background:#fff3d8;color:var(--warning)}.notice-line.danger{background:#fbe8e8;color:var(--danger)}.clonebox{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}.clonebox input{padding:10px 12px;border:1px solid #cddbd7;border-radius:10px}