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#0000000f}.topnav__brand{flex-shrink:0;align-items:center;gap:12px;display:flex}.topnav__logo{border-radius:var(--radius-sm);object-fit:contain;width:32px;height:32px}.topnav__app-name{color:var(--text);letter-spacing:-.02em;white-space:nowrap;background:linear-gradient(135deg, var(--primary) 0%, #1048a8 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:17px;font-weight:700}.topnav__app-name span{color:var(--primary)}.topnav__tabs{align-items:center;gap:4px;margin:0 auto;padding:0;list-style:none;display:flex}.topnav__tab{border-radius:var(--radius-sm);color:var(--text-secondary);white-space:nowrap;background:0 0;border:none;align-items:center;gap:6px;padding:8px 16px;font-size:13px;font-weight:500;transition:color .15s,background 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0;border:none;flex:1;padding:0;font-size:14px;font-weight:500;overflow:hidden}.app-shell__file-item-title:hover{text-decoration:underline}.app-shell__file-delete{width:28px;height:28px;color:var(--text-secondary);cursor:pointer;opacity:0;background:0 0;border:none;border-radius:6px;flex-shrink:0;font-size:18px;transition:opacity .15s,background .15s,color .15s}.app-shell__file-item:hover .app-shell__file-delete{opacity:1}.app-shell__file-delete:hover{color:var(--danger);background:#fef2f2}.login-page{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:var(--surface);border:1px solid var(--border);text-align:center;border-radius:16px;width:100%;max-width:440px;padding:48px 56px;box-shadow:0 4px 24px #00000014}.login-logo{width:80px;height:80px;margin-bottom:16px}.login-card h1{color:var(--primary);margin:0;font-size:28px}.login-subtitle{color:var(--text-secondary);margin:4px 0 24px;font-size:14px}.login-card form{flex-direction:column;gap:12px;display:flex}.login-card input{border:1px solid var(--border);font-size:15px;font-family:var(--font);color:var(--text);background:var(--bg);border-radius:10px;padding:12px 14px}.login-card input:focus{border-color:var(--primary);outline:none}.login-card button{background:var(--primary);color:#fff;cursor:pointer;font-size:15px;font-weight:600;font-family:var(--font);border:none;border-radius:10px;margin-top:4px;padding:12px}.login-card button:hover:not(:disabled){background:var(--primary-hover)}.login-card button:disabled{opacity:.5}.login-error{color:#d32f2f;background:#fde8e8;border-radius:8px;padding:8px 12px;font-size:13px}.login-roles{border-top:1px solid var(--border);margin-top:24px;padding-top:20px}.login-roles p{color:var(--text-secondary);margin:0 0 8px;font-size:12px}.role-badges{flex-wrap:wrap;justify-content:center;gap:6px;display:flex}.role-badge{border-radius:12px;padding:3px 10px;font-size:11px;font-weight:600}.role-admin{color:#283593;background:#e8eaf6}.role-director{color:#1b5e20;background:#e8f5e9}.role-teacher{color:#e65100;background:#fff3e0}.role-parent{color:#880e4f;background:#fce4ec}