*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--hs-primary: #1a73e8;--hs-primary-dark: #1557b0;--hs-error: #d93025;--hs-success: #188038;--hs-bg: #f8f9fa;--hs-surface: #ffffff;--hs-text: #202124;--hs-text-secondary: #5f6368;--hs-border: #dadce0;--hs-radius: 8px;--hs-shadow: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--hs-bg);color:var(--hs-text);min-height:100vh;display:flex;justify-content:center;align-items:center}#root{width:100%;min-height:100vh;display:flex;justify-content:center;align-items:center}.auth-card{background:var(--hs-surface);border-radius:var(--hs-radius);box-shadow:var(--hs-shadow);padding:48px 40px;max-width:440px;width:100%;text-align:center}.auth-card h1{font-size:24px;font-weight:600;margin-bottom:8px}.auth-card p{color:var(--hs-text-secondary);font-size:14px;margin-bottom:24px;line-height:1.5}.auth-btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--hs-primary);color:#fff;border:none;border-radius:var(--hs-radius);padding:12px 24px;font-size:15px;font-weight:500;cursor:pointer;transition:background .15s;width:100%}.auth-btn:hover{background:var(--hs-primary-dark)}.auth-btn:disabled{opacity:.6;cursor:not-allowed}.auth-btn--outline{background:transparent;color:var(--hs-primary);border:1px solid var(--hs-border)}.auth-btn--outline:hover{background:#f1f3f4}.error-text{color:var(--hs-error);font-size:13px;margin-top:12px}.success-text{color:var(--hs-success);font-size:13px;margin-top:12px}.input-group{margin-bottom:16px;text-align:left}.input-group label{display:block;font-size:13px;font-weight:500;margin-bottom:6px;color:var(--hs-text-secondary)}.input-group input{width:100%;padding:10px 12px;border:1px solid var(--hs-border);border-radius:var(--hs-radius);font-size:15px;font-family:inherit;outline:none;transition:border-color .15s}.input-group input:focus{border-color:var(--hs-primary)}.qr-container{margin:24px 0}.qr-container img{max-width:200px;border-radius:var(--hs-radius)}.totp-input{text-align:center;font-size:28px;letter-spacing:8px;font-weight:600}.spinner{display:inline-block;width:24px;height:24px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.logo{width:48px;height:48px;margin-bottom:20px}.admin-container{width:100%;max-width:900px;margin:0 auto;padding:24px 16px;min-height:100vh;display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start}.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--hs-border)}.admin-header h1{font-size:22px;font-weight:600}.admin-user{font-size:13px;color:var(--hs-text-secondary)}.admin-tabs{display:flex;gap:0;margin-bottom:20px;border-bottom:2px solid var(--hs-border)}.admin-tab{padding:10px 20px;border:none;background:none;font-size:14px;font-weight:500;color:var(--hs-text-secondary);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s}.admin-tab.active{color:var(--hs-primary);border-bottom-color:var(--hs-primary)}.admin-tab:hover{color:var(--hs-text)}.admin-panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.admin-panel-header h2{font-size:18px;font-weight:600}.admin-form-card{background:var(--hs-surface);border:1px solid var(--hs-border);border-radius:var(--hs-radius);padding:24px;margin-bottom:16px}.admin-form-card h3{font-size:16px;font-weight:600;margin-bottom:16px}.admin-list{display:flex;flex-direction:column;gap:8px}.admin-list-item{display:flex;gap:16px;align-items:flex-start;background:var(--hs-surface);border:1px solid var(--hs-border);border-radius:var(--hs-radius);padding:16px;transition:box-shadow .15s}.admin-list-item:hover{box-shadow:var(--hs-shadow)}.admin-list-item.inactive{opacity:.6}.admin-list-item-body{flex:1;min-width:0}.admin-list-item-title{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:4px}.admin-list-item-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--hs-text-secondary)}.admin-list-item-meta code{background:#f1f3f4;padding:1px 6px;border-radius:4px;font-size:12px}.admin-list-item-actions{display:flex;gap:6px;flex-shrink:0;align-items:flex-start}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.3px}.badge--admin{background:#e8f0fe;color:var(--hs-primary)}.badge--super_admin{background:#fce8e6;color:#c5221f}.badge--app_admin{background:#e8f0fe;color:var(--hs-primary)}.badge--user_admin{background:#f3e8fd;color:#7627bb}.badge--read_only{background:#f1f3f4;color:#5f6368}.badge--internal{background:#e6f4ea;color:var(--hs-success)}.badge--external{background:#fef7e0;color:#e37400}.badge--inactive{background:#f1f3f4;color:#80868b}.btn-sm{padding:5px 12px;border:1px solid var(--hs-border);border-radius:6px;background:#fff;font-size:12px;font-weight:500;cursor:pointer;color:var(--hs-text);transition:all .15s;white-space:nowrap}.btn-sm:hover{background:#f1f3f4}.btn-sm--outline{background:transparent}.btn-sm--danger{color:var(--hs-error);border-color:var(--hs-error)}.btn-sm--danger:hover{background:#fce8e6}.student-dashboard{width:100%;max-width:800px;margin:0 auto;padding:24px 16px;min-height:100vh}.student-dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--hs-border)}.student-dashboard-header h1{font-size:22px;font-weight:600;margin-bottom:4px}.student-welcome{font-size:14px;color:var(--hs-text-secondary);margin-bottom:0}.student-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:600px){.student-grid{grid-template-columns:1fr}}.student-card{background:var(--hs-surface);border:1px solid var(--hs-border);border-radius:var(--hs-radius);padding:20px}.student-card h3{font-size:16px;font-weight:600;margin-bottom:12px}.student-card--success{border-color:var(--hs-success);background:#e6f4ea;margin-bottom:16px}.student-card--success h3{color:var(--hs-success)}.student-status{font-size:14px;margin-bottom:12px}.badge--pending{background:#fef7e0;color:#e37400}.badge--active{background:#e6f4ea;color:var(--hs-success)}.badge--enrolled{background:#e8f0fe;color:var(--hs-primary)}.student-list{list-style:none;padding:0;font-size:14px}.student-list li{padding:6px 0;border-bottom:1px solid var(--hs-border)}.student-list li:last-child{border-bottom:none}.student-info-grid{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:13px}.student-info-grid span:nth-child(odd){color:var(--hs-text-secondary);font-weight:500}.btn-sm--success{color:var(--hs-success);border-color:var(--hs-success)}.btn-sm--success:hover{background:#e6f4ea}.admin-alert{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:12px 16px;border-radius:var(--hs-radius);margin-bottom:16px;font-size:13px;line-height:1.5}.admin-alert--error{background:#fce8e6;color:var(--hs-error);border:1px solid #f5c6cb}.admin-alert--success{background:#e6f4ea;color:var(--hs-success);border:1px solid #b7e1cd}.admin-secret-box{background:#0000000f;border-radius:6px;padding:10px 12px;margin-top:8px;font-family:monospace;font-size:12px;word-break:break-all;line-height:1.6}