.spinner-fullscreen{background:var(--color-bg);z-index:9999;flex-direction:column;justify-content:center;align-items:center;gap:24px;display:flex;position:fixed;inset:0}.spinner-logo{color:var(--color-primary);letter-spacing:.05em;font-size:1.5rem;font-weight:800}.spinner-ring{border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;flex-shrink:0;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.sidebar{width:var(--sidebar-width);background:var(--dark-slate-grey);height:100vh;transition:width var(--transition-base);z-index:200;isolation:isolate;flex-direction:column;flex-shrink:0;display:flex;position:sticky;top:0;overflow:hidden}.sidebar--collapsed{width:var(--sidebar-collapsed-width)}.sidebar-header{min-height:var(--header-height);border-bottom:1px solid #ffffff1a;flex-shrink:0;justify-content:space-between;align-items:center;padding:16px 16px 12px;display:flex}.sidebar--collapsed .sidebar-header{justify-content:center;padding:16px 0 12px}.sidebar-logo{align-items:center;gap:10px;display:flex;overflow:hidden}.sidebar-logo-icon{background:var(--honey-bronze);border-radius:var(--radius-md);width:36px;height:36px;color:var(--dark-slate-grey);flex-shrink:0;justify-content:center;align-items:center;display:flex}.sidebar-logo-text{flex-direction:column;display:flex;overflow:hidden}.sidebar-logo-name{font-size:var(--font-size-sm);color:#fff;white-space:nowrap;font-weight:800}.sidebar-logo-sub{color:var(--muted-olive);white-space:nowrap;font-size:10px}.sidebar-toggle{border-radius:var(--radius-sm);color:#fff9;cursor:pointer;transition:all var(--transition-fast);background:#ffffff1a;border:none;flex-shrink:0;align-items:center;padding:4px;display:flex}.sidebar-toggle:hover{color:#fff;background:#fff3}.sidebar-toggle--desktop{display:flex}.sidebar-toggle--mobile{display:none}.sidebar--collapsed .sidebar-toggle--desktop{z-index:10;opacity:0;pointer-events:none;width:22px;height:44px;transition:opacity .18s ease, background var(--transition-fast);background:#ffffff1f;border-left:1px solid #ffffff26;border-radius:8px 0 0 8px;justify-content:center;padding:0;position:absolute;top:50%;right:0;transform:translateY(-50%)}.sidebar--collapsed:hover .sidebar-toggle--desktop{opacity:1;pointer-events:auto}.sidebar--collapsed .sidebar-toggle--desktop:hover{color:var(--honey-bronze);background:#f8bc5e40}.sidebar-user{border-bottom:1px solid #ffffff1a;flex-shrink:0;align-items:center;gap:10px;padding:12px 16px;display:flex}.sidebar--collapsed .sidebar-user{justify-content:center;padding:12px 0}.sidebar-user-avatar{border-radius:var(--radius-full);background:var(--muted-olive);color:#fff;width:36px;height:36px;font-size:var(--font-size-sm);text-transform:uppercase;flex-shrink:0;justify-content:center;align-items:center;font-weight:700;display:flex}.sidebar-user-name{font-size:var(--font-size-sm);color:#fff;white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.sidebar-user-role{color:var(--honey-bronze);white-space:nowrap;font-size:11px}.sidebar-nav{flex:1;padding:8px 0;overflow-y:auto}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-track{background:0 0}.sidebar-nav::-webkit-scrollbar-thumb{background:#fff3;border-radius:4px}.sidebar-nav-item{color:#ffffffa6;font-size:var(--font-size-sm);transition:all var(--transition-fast);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:0;align-items:center;gap:12px;width:100%;padding:10px 16px;font-weight:500;text-decoration:none;display:flex}.sidebar--collapsed .sidebar-nav-item{justify-content:center;padding:10px 0}.sidebar-nav-item:hover{color:#fff;background:#ffffff14;text-decoration:none}.sidebar-nav-item.active{color:var(--honey-bronze);border-right:3px solid var(--honey-bronze);background:#f8bc5e33}.sidebar-footer{border-top:1px solid #ffffff1a;flex-shrink:0;padding:8px 0 12px}.sidebar--collapsed .sidebar-footer .sidebar-nav-item{justify-content:center;padding:10px 0}.sidebar-logout{color:#ffffff80}.sidebar-logout:hover{color:#f87171;background:#f871711a}@media (width<=768px){.sidebar{z-index:200;height:100%;transition:transform .28s cubic-bezier(.4,0,.2,1);position:fixed;top:0;left:0;transform:translate(-100%);width:280px!important}.sidebar--mobile-open{transform:translate(0)}.sidebar-toggle--desktop{display:none}.sidebar-toggle--mobile{display:flex}.sidebar-user-info{flex-direction:column;display:flex}.sidebar-nav-item{justify-content:flex-start;padding:13px 20px;font-size:.95rem}}.app-header{height:var(--header-height);border-bottom:1px solid var(--color-border);padding:0 var(--space-6);z-index:100;background:#fff;flex-shrink:0;justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.header-left{align-items:center;gap:var(--space-4);display:flex}.header-menu-btn{cursor:pointer;color:var(--color-text-muted);border-radius:var(--radius-md);transition:all var(--transition-fast);background:0 0;border:none;align-items:center;padding:6px;display:flex}.header-menu-btn:hover{background:var(--color-border-light);color:var(--color-text)}.header-menu-btn--mobile{display:none}.header-menu-btn--desktop{display:flex}.header-title{font-size:var(--font-size-xl);color:var(--color-primary);font-weight:700}.header-right{align-items:center;gap:var(--space-4);display:flex}.header-school-name{font-size:var(--font-size-sm);color:var(--color-text-muted);background:var(--color-border-light);border-radius:var(--radius-full);padding:4px 12px;font-weight:600}@media (width<=768px){.app-header{padding:0 var(--space-4)}.header-menu-btn--mobile{display:flex}.header-menu-btn--desktop{display:none}.header-title{font-size:1rem}.header-school-name{display:none}}.app-layout{min-height:100vh;display:flex}.app-main{background:var(--color-bg);flex-direction:column;flex:1;min-width:0;display:flex}.app-content{padding:var(--space-6);flex:1;overflow-y:auto}.mobile-backdrop{z-index:199;-webkit-backdrop-filter:blur(2px);background:#00000073;animation:.2s both backdropIn;display:none;position:fixed;inset:0}@keyframes backdropIn{0%{opacity:0}to{opacity:1}}@media (width<=768px){.mobile-backdrop{display:block}.app-content{padding:var(--space-4)}}@media (width<=480px){.app-content{padding:12px}}:root{--dark-slate-grey:#395850;--muted-olive:#95b37d;--black:#000;--vanilla-custard:#e6dda6;--honey-bronze:#f8bc5e;--bright-snow:#faf9f7;--color-primary:var(--dark-slate-grey);--color-primary-light:#4a7066;--color-primary-dark:#2a4239;--color-secondary:var(--muted-olive);--color-accent:var(--honey-bronze);--color-bg:var(--bright-snow);--color-card:#fff;--color-card-alt:var(--vanilla-custard);--color-text:#1a1a1a;--color-text-muted:#6b7280;--color-border:#e5e7eb;--color-border-light:#f3f4f6;--color-success:#16a34a;--color-success-light:#dcfce7;--color-warning:#d97706;--color-warning-light:#fef3c7;--color-danger:#dc2626;--color-danger-light:#fee2e2;--color-info:#2563eb;--color-info-light:#dbeafe;--font-sans:"Segoe UI", system-ui, -apple-system, sans-serif;--font-size-xs:.75rem;--font-size-sm:.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.5rem;--font-size-3xl:1.875rem;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--shadow-xl:0 20px 25px -5px #0000001a, 0 10px 10px -5px #0000000a;--sidebar-width:260px;--sidebar-collapsed-width:68px;--header-height:64px;--transition-fast:.15s ease;--transition-base:.25s ease;--transition-slow:.35s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;font-size:16px}body{font-family:var(--font-sans);font-size:var(--font-size-base);color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;line-height:1.6}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit}img{max-width:100%;display:block}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--color-border-light)}::-webkit-scrollbar-thumb{background:var(--muted-olive);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--dark-slate-grey)}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.text-center{text-align:center}.text-right{text-align:right}.text-muted{color:var(--color-text-muted)}.text-primary{color:var(--color-primary)}.text-accent{color:var(--honey-bronze)}.font-bold{font-weight:700}.font-semibold{font-weight:600}.font-medium{font-weight:500}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--space-2)}.gap-4{gap:var(--space-4)}.w-full{width:100%}.h-full{height:100%}.badge{border-radius:var(--radius-full);font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.04em;align-items:center;padding:2px 10px;font-weight:600;display:inline-flex}.badge-success{background:var(--color-success-light);color:var(--color-success)}.badge-warning{background:var(--color-warning-light);color:var(--color-warning)}.badge-danger{background:var(--color-danger-light);color:var(--color-danger)}.badge-info{background:var(--color-info-light);color:var(--color-info)}.badge-neutral{background:var(--color-border-light);color:var(--color-text-muted)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn var(--transition-base) both}.spin{animation:.8s linear infinite spin}.page-container{padding:var(--space-6);max-width:1400px}.page-title{font-size:var(--font-size-2xl);color:var(--color-primary);margin-bottom:var(--space-6);font-weight:700}.page-header{margin-bottom:var(--space-6);justify-content:space-between;align-items:center;gap:var(--space-4);flex-wrap:wrap;display:flex}.form-grid{gap:var(--space-4);display:grid}.form-grid-2{grid-template-columns:1fr 1fr}.form-grid-3{grid-template-columns:1fr 1fr 1fr}.stat-grid{gap:var(--space-4);display:grid}.stat-grid-4{grid-template-columns:repeat(4,1fr)}.stat-grid-3{grid-template-columns:repeat(3,1fr)}.stat-grid-2{grid-template-columns:repeat(2,1fr)}@media (width<=1024px){.stat-grid-4{grid-template-columns:repeat(2,1fr)}.form-grid-3{grid-template-columns:1fr 1fr}}@media (width<=768px){.page-container{padding:var(--space-4)}.page-title{font-size:var(--font-size-xl);margin-bottom:var(--space-4)}.page-header{margin-bottom:var(--space-4);flex-direction:column;align-items:stretch}.page-header>*{width:100%}.page-header button{justify-content:center}.form-grid-2,.form-grid-3{grid-template-columns:1fr}.stat-grid-4,.stat-grid-3{grid-template-columns:repeat(2,1fr)}}@media (width<=480px){.stat-grid-4,.stat-grid-3,.stat-grid-2{grid-template-columns:1fr}}