html,body,#root{height:100%}:root{--primary:#4caf50;--primary-dark:#388e3c;--primary-light:#c8e6c9;--text:#1f2937;--text-secondary:#6b7280;--background:#f8fafc;--surface:#fff;--border:#e5e7eb;--error:#ef4444;--success:#10b981;--sidebar-width:250px;--sidebar-collapsed-width:70px;--header-height:64px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;line-height:1.5}.loading-screen{flex-direction:column;justify-content:center;align-items:center;gap:16px;height:100vh;display:flex}.spinner{border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:40px;height:40px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.login-container{background:linear-gradient(135deg, var(--primary-light) 0%, var(--background) 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:var(--surface);border-radius:16px;width:100%;max-width:400px;padding:40px;box-shadow:0 4px 24px #0000001a}.login-header{text-align:center;margin-bottom:32px}.login-header h1{color:var(--primary-dark);margin-bottom:8px;font-size:28px}.login-header p{color:var(--text-secondary)}.login-form{flex-direction:column;gap:20px;display:flex}.form-group{flex-direction:column;gap:6px;display:flex}.form-group label{color:var(--text);font-size:14px;font-weight:500}.form-group input{border:1px solid var(--border);border-radius:8px;padding:12px 16px;font-size:16px;transition:border-color .2s,box-shadow .2s}.form-group input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light);outline:none}.form-group input:disabled{background-color:var(--background);cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:14px 24px;font-size:16px;font-weight:600;transition:background-color .2s}.btn-primary:hover{background:var(--primary-dark)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-link{color:var(--primary);cursor:pointer;background:0 0;border:none;font-size:14px;text-decoration:underline}.btn-link:hover{color:var(--primary-dark)}.divider{text-align:center;align-items:center;margin:8px 0;display:flex}.divider:before,.divider:after{content:"";border-bottom:1px solid var(--border);flex:1}.divider span{color:var(--text-secondary);padding:0 16px;font-size:14px}.btn-google{background:var(--surface);width:100%;color:var(--text);border:1px solid var(--border);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;gap:12px;padding:14px 24px;font-size:16px;font-weight:500;transition:all .2s;display:flex}.btn-google:hover{background:var(--background);border-color:var(--text-secondary)}.btn-google:disabled{opacity:.6;cursor:not-allowed}.google-icon{color:#4285f4;font-size:18px;font-weight:700}.error-message{color:var(--error);background:#fee2e2;border-radius:8px;padding:12px 16px;font-size:14px}.success-message{color:var(--success);background:#d1fae5;border-radius:8px;padding:12px 16px;font-size:14px}.layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--surface);border-right:1px solid var(--border);z-index:100;flex-direction:column;height:100vh;transition:width .3s;display:flex;position:fixed}.sidebar.collapsed{width:var(--sidebar-collapsed-width)}.sidebar-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:20px;display:flex}.sidebar-header h2{color:var(--primary-dark);white-space:nowrap;font-size:20px;overflow:hidden}.collapse-btn{border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:6px;padding:4px 8px;font-size:14px}.collapse-btn:hover{background:var(--background)}.sidebar-nav{flex-direction:column;flex:1;gap:4px;padding:16px 12px;display:flex}.nav-item{color:var(--text-secondary);border-radius:8px;align-items:center;gap:12px;padding:12px 16px;text-decoration:none;transition:all .2s;display:flex}.nav-item:hover{background:var(--background);color:var(--text)}.nav-item.active{background:var(--primary-light);color:var(--primary-dark);font-weight:500}.nav-icon{text-align:center;width:24px;font-size:20px}.nav-label{white-space:nowrap}.sidebar-footer{border-top:1px solid var(--border);padding:16px 12px}.logout-btn{border:1px solid var(--error);width:100%;color:var(--error);cursor:pointer;background:0 0;border-radius:8px;align-items:center;gap:12px;padding:12px 16px;font-size:14px;transition:all .2s;display:flex}.logout-btn:hover{background:#fee2e2}.main-wrapper{margin-left:var(--sidebar-width);flex:1;transition:margin-left .3s}.sidebar.collapsed+.main-wrapper{margin-left:var(--sidebar-collapsed-width)}.header{height:var(--header-height);background:var(--surface);border-bottom:1px solid var(--border);z-index:50;justify-content:space-between;align-items:center;padding:0 24px;display:flex;position:sticky;top:0}.header-left .page-title{font-size:20px;font-weight:600}.header-right{align-items:center;gap:16px;display:flex}.user-info{align-items:center;gap:12px;display:flex}.user-email{color:var(--text-secondary);font-size:14px}.user-avatar{background:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:14px;font-weight:600;display:flex}.main-content{min-height:calc(100vh - var(--header-height));padding:24px}.page{max-width:1200px}.page-header{margin-bottom:24px}.page-header h2{margin-bottom:4px;font-size:24px}.page-header p{color:var(--text-secondary)}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-bottom:24px;display:grid}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;align-items:center;gap:16px;padding:20px;display:flex}.stat-icon{background:var(--primary-light);border-radius:12px;justify-content:center;align-items:center;width:56px;height:56px;font-size:32px;display:flex}.stat-info h3{color:var(--text-secondary);margin-bottom:4px;font-size:14px;font-weight:500}.stat-value{color:var(--text);font-size:28px;font-weight:700}.content-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px}.content-card h3{margin-bottom:16px;font-size:18px}.card-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.card-header h3{margin-bottom:0}.empty-state{color:var(--text-secondary);text-align:center;padding:40px 20px}.table-container{overflow-x:auto}.data-table{border-collapse:collapse;width:100%}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--border);padding:12px 16px}.data-table th{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-size:12px;font-weight:600}.empty-row{text-align:center;color:var(--text-secondary);padding:40px 16px!important}.settings-grid{grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:24px;display:grid}.settings-form{flex-direction:column;gap:16px;display:flex}.toggle-group label{cursor:pointer;align-items:center;gap:12px;display:flex}.toggle-group input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary)}@media (width<=768px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.main-wrapper{margin-left:0}.settings-grid{grid-template-columns:1fr}}