:root{--bg:#F2F4F6;--surface:#FFFFFF;--ink:#002E5D;--ink-soft:#3D6690;--accent:#006DCC;--accent-soft:#E3F0FC;--sage:#2E7D46;--sage-soft:#E3F2E7;--danger:#C22C2C;--danger-soft:#FBE6E6;--border:#D7DCE1;--text:#333333;--text-muted:#5C6670;--radius:4px;--nav-dark:#2A3A48;--nav-olive:#78883C;--nav-olive-text:#57642B}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Barlow,sans-serif;-webkit-font-smoothing:antialiased}h1,h2,h3{font-family:Barlow Semi Condensed,sans-serif;font-weight:700;margin:0;color:var(--ink)}.app{max-width:1180px;margin:0 auto;height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 28px;background:var(--nav-dark)}.topnav{display:flex;background:var(--nav-olive);padding:0 22px}.topnav-item{border:none;border-bottom:3px solid transparent;border-radius:0;background:transparent;color:#fff;padding:11px 16px;font-size:13.5px;font-weight:500;cursor:pointer}.topnav-item:hover{background:#ffffff1f}.topnav-item.active{background:#00000026;border-bottom-color:#fff;font-weight:600}.brand{display:flex;align-items:center;gap:14px}.brand .mark{width:34px;height:34px;border-radius:4px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-family:Barlow Semi Condensed,sans-serif;font-size:16px}.brand-logo-frame{height:38px;width:38px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.25);border-radius:6px;background:var(--surface);padding:3px;flex-shrink:0}.brand-logo{height:100%;width:100%;object-fit:contain;display:block}.brand-divider{width:1px;height:26px;background:#ffffff40}.brand-text{display:flex;flex-direction:column;line-height:1.2}.brand-wordmark{font-family:Barlow Semi Condensed,sans-serif;font-size:19px;font-weight:700;color:#fff;letter-spacing:.2px}.brand-motto{font-size:10.5px;font-weight:500;color:#ffffffad;letter-spacing:.03em;margin-top:1px}.brand-name{font-size:13.5px;color:#fffc}.brand-name strong{color:#fff;font-weight:600}.top-actions{display:flex;gap:6px;align-items:center}.topbar button.subtle{color:#ffffffd9}.topbar button.subtle:hover{background:#ffffff1f}button{font-family:inherit;font-size:13px;cursor:pointer;border-radius:6px;border:1px solid var(--border);background:var(--surface);padding:8px 14px;color:var(--text);transition:background .12s ease}button:hover{background:var(--bg)}button:disabled{opacity:.6;cursor:default}button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}button.primary:hover{background:#00509c}button.subtle{border-color:transparent;background:transparent;color:var(--text-muted)}button.subtle:hover{background:var(--bg)}.landing{flex:1;display:flex;align-items:center;justify-content:center;padding:40px}.landing-card{max-width:560px;text-align:center}.landing-card h1{font-size:30px;margin-bottom:10px}.landing-card .tagline{font-family:Barlow Semi Condensed,sans-serif;font-style:italic;font-size:15px;font-weight:600;color:var(--accent);margin-bottom:14px}.landing-card p{color:var(--text-muted);font-size:15px;line-height:1.6;margin:0 0 28px}.role-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.role-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:26px 20px;text-align:left;cursor:pointer;transition:border-color .12s ease,transform .12s ease}.role-card:hover{border-color:var(--ink-soft);transform:translateY(-2px)}.role-card .icon{width:38px;height:38px;border-radius:6px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;font-size:17px}.role-card.staff .icon{background:var(--sage-soft);color:#1e5631}.role-card.family .icon{background:var(--accent-soft);color:#00509c}.role-card h3{font-size:16px;margin-bottom:6px}.role-card span{font-size:13px;color:var(--text-muted);line-height:1.5}.login-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:40px}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:36px;width:100%;max-width:380px}.login-card h2{font-size:20px;margin-bottom:6px}.login-card .sub{font-size:13px;color:var(--text-muted);margin-bottom:24px}.field{margin-bottom:16px}.field label{display:block;font-size:13px;color:var(--text-muted);margin-bottom:6px}.field input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit;background:var(--bg)}.field input:focus{outline:2px solid var(--ink-soft);outline-offset:1px}.error-text{color:var(--danger);font-size:12.5px;margin-top:6px}.login-card button.primary{width:100%;padding:11px;margin-top:6px;font-size:14px}.back-link{margin-top:18px;text-align:center}.back-link a{font-size:13px;color:var(--text-muted);cursor:pointer;text-decoration:underline}.demo-hint{margin-top:20px;padding:10px 12px;background:var(--bg);border-radius:6px;font-size:12px;color:var(--text-muted);line-height:1.5}.shell{flex:1;display:flex;min-height:0}.sidebar{width:250px;border-right:1px solid var(--border);background:var(--surface);padding:20px 14px;flex-shrink:0;overflow-y:auto}.sidebar h3{font-size:12px;color:var(--text-muted);margin-bottom:10px;padding:0 8px;font-family:Barlow,sans-serif;font-weight:600;letter-spacing:.03em;text-transform:uppercase}.student-item{display:flex;align-items:center;gap:10px;padding:9px 8px;border-radius:6px;cursor:pointer;margin-bottom:2px}.student-item:hover{background:var(--bg)}.student-item.active{background:var(--nav-olive)}.student-item.active .name{color:#fff}.student-item.active .prog{color:#fffc}.avatar{width:30px;height:30px;border-radius:50%;background:var(--ink-soft);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;flex-shrink:0}.student-item .name{font-size:13.5px}.student-item .prog{font-size:11.5px;color:var(--text-muted)}.main{flex:1;padding:26px 32px;overflow-y:auto}.file-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:22px}.file-header h2{font-size:22px;margin-bottom:4px}.file-header .meta{font-size:13.5px;color:var(--nav-olive-text);font-weight:600}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:20px}.tab{padding:9px 14px;font-size:13.5px;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent}.tab.active{color:var(--nav-olive-text);border-bottom-color:var(--nav-olive);font-weight:600}.doc-card{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:16px 18px;margin-bottom:14px}.doc-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}.doc-title{font-size:14.5px;font-weight:600;margin-bottom:3px}.doc-meta{font-size:12.5px;color:var(--text-muted)}.doc-view-link{display:inline-flex;align-items:center;gap:5px;margin-top:8px;font-size:13px;font-weight:600;color:var(--accent);text-decoration:none}.doc-view-link:hover{text-decoration:underline}.tag{font-size:11px;padding:3px 9px;border-radius:20px;font-weight:600}.tag.ipp{background:var(--accent-soft);color:#00509c}.tag.note{background:var(--sage-soft);color:#1e5631}.tag.other{background:#e8ebed;color:#566370}.tag.notice{background:var(--danger-soft);color:#8a2020}.comments{margin-top:14px;border-top:1px solid var(--border);padding-top:12px}.comment{display:flex;gap:10px;margin-bottom:12px}.comment .bubble{flex:1}.comment .who{font-size:12.5px;font-weight:600;margin-bottom:2px}.comment .who .role{font-weight:400;color:var(--text-muted)}.comment .body{font-size:13.5px;line-height:1.5}.comment .when{font-size:11px;color:var(--text-muted);margin-top:2px}.comment-input{display:flex;gap:8px;margin-top:10px}.comment-input input{flex:1;padding:9px 12px;border:1px solid var(--border);border-radius:6px;font-size:13.5px;font-family:inherit;background:var(--bg)}.empty{text-align:center;padding:50px 20px;color:var(--text-muted);font-size:14px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#002e5d52;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:var(--surface);border-radius:8px;padding:26px;width:420px;max-width:90vw}.modal h3{font-size:17px;margin-bottom:16px}select{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:6px;font-size:13.5px;font-family:inherit;background:var(--bg)}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}.file-drop{border:1.5px dashed var(--border);border-radius:6px;padding:22px;text-align:center;font-size:13px;color:var(--text-muted);margin-top:4px}.notice{background:var(--sage-soft);color:#1e5631;border-radius:var(--radius);padding:9px 14px;font-size:13px;margin-bottom:18px}.loading{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:14px}