:root{--fb-primary: #1877f2;--fb-primary-hover: #166fe5;--fb-primary-light: #e7f3ff;--fb-primary-dark: #1565c0;--fb-secondary: #42a5f5;--fb-secondary-hover: #1e88e5;--fb-secondary-light: #e3f2fd;--fb-success: #00a400;--fb-success-hover: #008a00;--fb-success-light: #e8f5e8;--fb-warning: #ff8c00;--fb-warning-hover: #e67c00;--fb-warning-light: #fff3e0;--fb-error: #fa383e;--fb-error-hover: #e53935;--fb-error-light: #ffebee;--fb-gray-50: #f8f9fa;--fb-gray-100: #e4e6ea;--fb-gray-200: #dadde1;--fb-gray-300: #ccd0d5;--fb-gray-400: #bcc0c4;--fb-gray-500: #8a8d91;--fb-gray-600: #606770;--fb-gray-700: #444950;--fb-gray-800: #365899;--fb-gray-900: #1c1e21;--fb-text-primary: #1c1e21;--fb-text-secondary: #65676b;--fb-text-tertiary: #8a8d91;--fb-text-inverse: #ffffff;--fb-bg-primary: #ffffff;--fb-bg-secondary: #f0f2f5;--fb-bg-tertiary: #e4e6ea;--fb-bg-dark: #18191a;--fb-border-light: #dadde1;--fb-border-medium: #ccd0d5;--fb-border-dark: #8a8d91;--fb-shadow-light: rgba(0, 0, 0, .1);--fb-shadow-medium: rgba(0, 0, 0, .15);--fb-shadow-dark: rgba(0, 0, 0, .25);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, 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;--font-size-4xl: 2.25rem;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700}*{box-sizing:border-box}body{font-family:var(--font-family);color:var(--fb-text-primary);background-color:var(--fb-bg-secondary);line-height:var(--line-height-normal);margin:0;padding:0}.fb-btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-md);font-weight:var(--font-weight-semibold);font-size:var(--font-size-base);line-height:var(--line-height-tight);text-decoration:none;border:none;cursor:pointer;transition:all .2s ease-in-out;gap:var(--spacing-sm)}.fb-btn-primary{background-color:var(--fb-primary);color:var(--fb-text-inverse)}.fb-btn-primary:hover{background-color:var(--fb-primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px var(--fb-shadow-medium)}.fb-btn-secondary{background-color:var(--fb-gray-200);color:var(--fb-text-primary)}.fb-btn-secondary:hover{background-color:var(--fb-gray-300)}.fb-btn-success{background-color:var(--fb-success);color:var(--fb-text-inverse)}.fb-btn-success:hover{background-color:var(--fb-success-hover)}.fb-btn-warning{background-color:var(--fb-warning);color:var(--fb-text-inverse)}.fb-btn-warning:hover{background-color:var(--fb-warning-hover)}.fb-btn-error{background-color:var(--fb-error);color:var(--fb-text-inverse)}.fb-btn-error:hover{background-color:var(--fb-error-hover)}.fb-card{background-color:var(--fb-bg-primary);border-radius:var(--radius-lg);box-shadow:0 2px 4px var(--fb-shadow-light);border:1px solid var(--fb-border-light);padding:var(--spacing-lg)}.fb-card-elevated{box-shadow:0 4px 12px var(--fb-shadow-medium)}.fb-input{width:100%;padding:var(--spacing-md);border:1px solid var(--fb-border-light);border-radius:var(--radius-md);font-size:var(--font-size-base);background-color:var(--fb-bg-primary);color:var(--fb-text-primary);transition:border-color .2s ease-in-out}.fb-input:focus{outline:none;border-color:var(--fb-primary);box-shadow:0 0 0 2px var(--fb-primary-light)}.fb-input::placeholder{color:var(--fb-text-tertiary)}.fb-label{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--fb-text-secondary);margin-bottom:var(--spacing-sm)}.fb-text-primary{color:var(--fb-text-primary)}.fb-text-secondary{color:var(--fb-text-secondary)}.fb-text-tertiary{color:var(--fb-text-tertiary)}.fb-bg-primary{background-color:var(--fb-bg-primary)}.fb-bg-secondary{background-color:var(--fb-bg-secondary)}.fb-bg-tertiary{background-color:var(--fb-bg-tertiary)}.fb-loading{animation:fb-spin 1s linear infinite}@keyframes fb-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.fb-alert{padding:var(--spacing-md);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);border:1px solid}.fb-alert-success{background-color:var(--fb-success-light);color:var(--fb-success);border-color:var(--fb-success)}.fb-alert-warning{background-color:var(--fb-warning-light);color:var(--fb-warning);border-color:var(--fb-warning)}.fb-alert-error{background-color:var(--fb-error-light);color:var(--fb-error);border-color:var(--fb-error)}.fb-alert-info{background-color:var(--fb-primary-light);color:var(--fb-primary);border-color:var(--fb-primary)}.fb-header{background-color:var(--fb-bg-primary);border-bottom:1px solid var(--fb-border-light);box-shadow:0 2px 4px var(--fb-shadow-light)}.fb-table{width:100%;border-collapse:collapse;background-color:var(--fb-bg-primary);border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 2px 4px var(--fb-shadow-light)}.fb-table th{background-color:var(--fb-bg-tertiary);color:var(--fb-text-secondary);font-weight:var(--font-weight-semibold);padding:var(--spacing-md);text-align:left;border-bottom:1px solid var(--fb-border-light)}.fb-table td{padding:var(--spacing-md);border-bottom:1px solid var(--fb-border-light)}.fb-table tr:hover{background-color:var(--fb-bg-secondary)}.fb-form-group{margin-bottom:var(--spacing-lg)}.fb-form-row{display:flex;gap:var(--spacing-md)}.fb-form-col{flex:1}@media(max-width:768px){.fb-form-row{flex-direction:column}.fb-btn{width:100%;justify-content:center}}