:root{--ink:#293b35;--muted:#737a73;--paper:#f8f7f2;--green:#234e43;--line:#e3e5db;--gold:#b18a44}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px 'DM Sans',sans-serif}button,input,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}a{color:var(--green)}.app{display:grid;grid-template-columns:235px 1fr;min-height:100vh}aside{border-right:1px solid var(--line);padding:36px 23px;background:#f0f1e9;display:flex;flex-direction:column;gap:32px}.brand{font-family:'Libre Caslon Display',Georgia,serif;font-size:35px}.brand small{display:block;font:10px 'DM Sans',sans-serif;letter-spacing:3px;margin-top:7px;color:var(--muted)}nav{display:grid;gap:9px}nav button{text-align:left;background:none;border:0;padding:13px 16px;border-radius:8px;color:var(--muted)}nav button.active{background:var(--green);color:white}.aside-foot{margin-top:auto;font-size:12px;line-height:1.7;color:var(--muted)}main{padding:28px 5vw 50px;max-width:1400px;width:100%}.top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:22px;gap:16px}.eyebrow{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--muted)}.mode{display:flex;background:#e9ece3;padding:4px;border-radius:9px}.mode button{border:0;background:none;border-radius:6px;padding:9px 14px;color:var(--ink)}.mode .selected{background:white;box-shadow:0 1px 4px #0001}.notice{padding:12px 16px;background:#f2ead9;color:#6f5b31;font-size:12px;border-radius:7px;margin:20px 0}.heading{display:flex;justify-content:space-between;align-items:end;margin:30px 0 26px;gap:20px}h1,h2,h3,p{margin-top:0}h1{font:48px/1.1 'Libre Caslon Display',Georgia,serif;margin-bottom:10px}h2{font:29px 'Libre Caslon Display',Georgia,serif;margin-bottom:20px}h3{font-size:16px}.sub,.muted{color:var(--muted);line-height:1.6}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0}.stat,.card{background:white;border:1px solid var(--line);border-radius:12px;padding:24px}.stat strong{font:38px Georgia,serif;display:block;margin:12px 0 5px}.stat span{color:var(--muted);font-size:12px}.grid{display:grid;grid-template-columns:1.5fr 1fr;gap:22px}.row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:17px 0;border-bottom:1px solid var(--line)}.row:last-child{border:0}.date{background:#f0f2ea;border-radius:8px;padding:12px;text-align:center;min-width:62px;font-size:11px}.date b{font-size:25px;display:block}.grow{flex:1}.pill{font-size:11px;padding:6px 10px;border-radius:20px;background:#eef3ed;color:#3f674b;white-space:nowrap}.pill.warn{background:#fbefd8;color:#946c25}.btn{display:inline-block;border:0;text-decoration:none;background:var(--green);color:white;padding:11px 16px;border-radius:7px;font-size:13px}.btn.light{background:#edf0e7;color:var(--green)}.btn.outline{background:white;border:1px solid var(--line);color:var(--green)}.actions{display:flex;gap:8px;flex-wrap:wrap}.tiny{font-size:12px}.progress{height:6px;background:#edf0e8;border-radius:4px;margin:16px 0}.progress i{display:block;height:100%;background:#9aaf82;width:100%;border-radius:4px}.resource{border:1px solid var(--line);padding:18px;border-radius:9px;margin:10px 0}.resource a{text-decoration:none;display:block}.resource small{display:block;margin-top:6px;color:var(--muted)}label{display:block;font-size:13px;margin:14px 0 6px}input,select{width:100%;padding:11px;border:1px solid #cdd3c7;border-radius:7px;background:white;color:var(--ink)}dialog{border:1px solid var(--line);border-radius:14px;padding:30px;width:min(520px,94vw);max-height:90vh}dialog::backdrop{background:#172e2877}.error{color:#a44430;font-size:13px;line-height:1.6}.success{color:var(--green)}.hidden{display:none!important}.section-gap{margin-top:24px}.footer{margin-top:28px;font-size:11px;color:var(--muted)}.empty{padding:25px;background:#f6f7f1;border-radius:9px;line-height:1.7}.list{padding-left:18px;line-height:1.9}.toast{position:fixed;bottom:24px;right:24px;background:var(--green);color:white;padding:16px;border-radius:9px;max-width:360px;z-index:4}.full{grid-column:1/-1}
@media(max-width:900px){.app{grid-template-columns:1fr}aside{padding:18px 22px;gap:15px}.brand{font-size:28px}.brand small,.aside-foot{display:none}nav{display:flex;overflow:auto}nav button{white-space:nowrap}.grid{grid-template-columns:1fr}main{padding:22px}.top{flex-wrap:wrap}h1{font-size:38px}.stats{gap:8px}.stat{padding:16px}.stat strong{font-size:30px}.heading{align-items:start;flex-direction:column}.row{flex-wrap:wrap}}
.login{max-width:540px;margin:12vh auto;padding:30px}.login .brand{margin-bottom:25px}.stack{display:grid;gap:12px}.small-form{display:grid;gap:8px}.error:empty{display:none}.stat strong{font-size:30px}.button-row{display:flex;gap:10px;flex-wrap:wrap}.wide{width:100%}.banner{padding:15px;border-radius:8px;background:#edf0e7;margin:18px 0} .preview-list{max-height:280px;overflow:auto}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #b18a44;outline-offset:3px}

.invoice-document{margin:auto;max-width:1000px}.preserve-lines{white-space:pre-wrap;overflow-wrap:anywhere}input[type=checkbox]{width:auto}.invoice-document .brand small{display:block}@media print{body{background:white;font-size:11pt}.print-hide{display:none!important}.invoice-document{padding:0;max-width:none}.invoice-document .grid{display:block}.invoice-document .card{break-inside:avoid;margin:12px 0}.invoice-document .heading{margin:20px 0}a{color:inherit}.notice{border:1px solid #bbb}}

.material-preview{width:min(1200px,96vw);max-width:none;height:92vh;max-height:94vh;padding:24px}.preview-header{display:flex;align-items:center;justify-content:space-between;gap:16px}.preview-header h2{margin:0 0 12px;font-size:25px;overflow-wrap:anywhere}.preview-frame-host{height:calc(100% - 200px);min-height:240px;margin-top:16px}.preview-frame-host iframe{border:1px solid var(--line);border-radius:8px;width:100%;height:100%;background:white}.lesson-materials{margin:26px 0}.lesson-materials>h3{padding-bottom:10px;border-bottom:1px solid var(--line)}.resource .btn{text-align:left;white-space:normal;overflow-wrap:anywhere}@media(max-width:600px){.material-preview{padding:15px}.preview-header{align-items:flex-start}.preview-header .btn{flex-shrink:0;padding:8px}.preview-header h2{font-size:20px}.preview-frame-host{height:calc(100% - 240px)}}