:root{color:#12263a;background:#f4f7fb;font-family:Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{margin:0}a{color:#0a2540}h1,h2,h3,p{margin:0}.app-shell{min-height:100vh}.app-header{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 28px;background:#0a2540;color:#fff}.brand,.brand:visited{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;font-weight:650}.brand-mark{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:8px;background:#1aa6a6;color:#fff;font-weight:700}.header-actions,.row,.stack{display:flex}.header-actions,.row{align-items:center;gap:12px;flex-wrap:wrap}.project-name{color:#d5e4ea}.page{padding:28px;max-width:1100px;margin:0 auto}.stack{flex-direction:column;gap:16px}.stack.tight,.stack.narrow{gap:8px}.narrow{max-width:760px}.spread{justify-content:space-between}.grow{flex:1}.card,.question-card{background:#fff;border:1px solid #d5e0ea;border-radius:12px;padding:18px}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.card-link,.card-button{text-align:left;text-decoration:none;color:inherit;cursor:pointer}.exam-row{display:flex;justify-content:space-between;gap:16px;align-items:center}.button,button.button{border:0;border-radius:8px;padding:10px 14px;background:#1aa6a6;color:#fff;font:inherit;cursor:pointer;text-decoration:none;display:inline-block}.button-secondary{background:#0a2540}.button:disabled{opacity:.6;cursor:wait}.button.is-disabled{opacity:.6;cursor:wait;pointer-events:none}.button-content{display:inline-flex;align-items:center;justify-content:center;gap:8px}.spinner{display:inline-block;flex:none;width:20px;height:20px;border:3px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .8s linear infinite}.spinner-small{width:16px;height:16px;border-width:2px}.spinner-large{width:32px;height:32px;border-width:4px}.page-loading{min-height:50vh;display:grid;place-content:center;justify-items:center;gap:12px;padding:28px;color:#52667a}.loading-overlay{position:fixed;z-index:1000;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:24px;background:#0a254057;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.loading-panel{display:flex;align-items:center;gap:14px;min-width:min(320px,100%);padding:18px 22px;border:1px solid #d5e0ea;border-radius:12px;background:#fff;box-shadow:0 14px 36px #0a25403d;font-weight:650}@keyframes spin{to{transform:rotate(360deg)}}label{display:flex;flex-direction:column;gap:6px;font-weight:600}input,textarea,select{font:inherit;color:inherit;border:1px solid #c5d2de;border-radius:8px;padding:8px 10px;background:#fff}textarea{min-height:90px}.muted{color:#52667a;font-weight:400}.choice{flex-direction:row;align-items:center;font-weight:400}.status{display:inline-block;border-radius:999px;padding:2px 10px;background:#e7eef5;font-size:.85rem}.status-passed,.status-published{background:#d8f3ef}.status-failed,.status-unpublished{background:#fde2e1}.status-in-progress,.status-awaiting-grade{background:#fff3d6}.status-expired{background:#ece7f8}.banner{border-radius:8px;padding:10px 12px;background:#e7f6f6}.banner-error{background:#fde2e1}.signin{min-height:100vh;display:grid;place-items:center;padding:24px}.signin-card{width:min(420px,100%);display:flex;flex-direction:column;gap:12px}.dialog-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a254073;display:grid;place-items:center;padding:24px}.dialog{width:min(480px,100%)}.certificate-frame{width:100%;height:640px;border:1px solid #d5e0ea;border-radius:12px;background:#fff}.question-bank-scroll{max-height:70vh;overflow-y:auto}.question-fields{border:0;margin:0;padding:0;min-inline-size:0}.question-toggle{-webkit-appearance:none;-moz-appearance:none;appearance:none;display:flex;align-items:flex-start;gap:10px;width:100%;margin:0;padding:0;border:0;background:transparent;color:inherit;font:inherit;font-weight:600;text-align:left;cursor:pointer}.question-toggle-mark{flex:none;color:#52667a}.question-toggle-prompt{white-space:pre-wrap}.question-card.is-inactive{background:#eef2f6;color:#6b7c8d}.question-card.is-inactive input,.question-card.is-inactive textarea,.question-card.is-inactive select{background:#e7edf3;color:#6b7c8d;border-color:#d5e0ea}.grade-total{position:sticky;top:0;z-index:2;margin:0;padding:12px 18px;background:#fff;border:1px solid #d5e0ea;border-radius:12px;font-weight:650}.badge-image{max-width:240px}.hidden-input{display:none}@media (max-width: 720px){.exam-row,.app-header{flex-direction:column;align-items:flex-start}.page{padding:16px}}@media (prefers-reduced-motion: reduce){.spinner{animation:none;border-right-color:currentColor;opacity:.65}}