:root{--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-primary-light: #dbeafe;--color-primary-dark: #1e40af;--color-success: #10b981;--color-success-light: #d1fae5;--color-danger: #ef4444;--color-danger-light: #fee2e2;--color-warning: #f59e0b;--color-warning-light: #fef3c7;--color-info: #3b82f6;--color-info-light: #dbeafe;--color-text-primary: #1f2937;--color-text-secondary: #6b7280;--color-text-tertiary: #9ca3af;--color-background: #ffffff;--color-background-secondary: #f9fafb;--color-background-tertiary: #f3f4f6;--color-border: #e5e7eb;--color-border-light: #f3f4f6;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", 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: 2rem;--font-size-4xl: 2.5rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--transition-fast: .15s ease-in-out;--transition-base: .25s ease-in-out;--transition-slow: .35s ease-in-out;--z-dropdown: 1000;--z-sticky: 1020;--z-fixed: 1030;--z-modal: 1040;--z-popover: 1050;--z-tooltip: 1060}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-background-secondary);min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-bold);line-height:var(--line-height-tight);color:var(--color-text-primary)}h1{font-size:var(--font-size-4xl);margin-bottom:var(--spacing-lg)}h2{font-size:var(--font-size-3xl);margin-bottom:var(--spacing-md)}h3{font-size:var(--font-size-2xl);margin-bottom:var(--spacing-md)}h4{font-size:var(--font-size-xl);margin-bottom:var(--spacing-sm)}p{margin-bottom:var(--spacing-md);color:var(--color-text-secondary)}label{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin-bottom:var(--spacing-xs)}input,select,textarea{width:100%;padding:var(--spacing-sm) var(--spacing-md);font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-background);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}input::placeholder,select::placeholder,textarea::placeholder{color:var(--color-text-tertiary)}input:disabled,select:disabled,textarea:disabled{background-color:var(--color-background-tertiary);color:var(--color-text-tertiary);cursor:not-allowed}button{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);font-family:var(--font-family);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);line-height:var(--line-height-normal);color:var(--color-background);background-color:var(--color-primary);border:none;border-radius:var(--radius-md);cursor:pointer;transition:background-color var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast);box-shadow:var(--shadow-sm)}button:hover:not(:disabled){background-color:var(--color-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}button:active:not(:disabled){transform:translateY(0);box-shadow:var(--shadow-sm)}button:disabled{background-color:var(--color-border);color:var(--color-text-tertiary);cursor:not-allowed;transform:none;box-shadow:none}button.secondary{background-color:var(--color-background);color:var(--color-text-primary);border:1px solid var(--color-border)}button.secondary:hover:not(:disabled){background-color:var(--color-background-secondary);border-color:var(--color-text-tertiary)}button.danger{background-color:var(--color-danger)}button.danger:hover:not(:disabled){background-color:#dc2626}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);font-family:var(--font-family);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);line-height:var(--line-height-normal);border:none;border-radius:var(--radius-md);cursor:pointer;text-decoration:none;transition:background-color var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast),border-color var(--transition-fast);box-shadow:var(--shadow-sm)}.btn:hover:not(:disabled):not(.disabled){transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn:active:not(:disabled):not(.disabled){transform:translateY(0);box-shadow:var(--shadow-sm)}.btn:disabled,.btn.disabled{background-color:var(--color-border);color:var(--color-text-tertiary);cursor:not-allowed;transform:none;box-shadow:none;pointer-events:none}.btn-primary{background-color:var(--color-primary);color:var(--color-background)}.btn-primary:hover:not(:disabled):not(.disabled){background-color:var(--color-primary-hover)}.btn-secondary{background-color:var(--color-background);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled):not(.disabled){background-color:var(--color-background-secondary);border-color:var(--color-text-tertiary)}.btn-danger{background-color:var(--color-danger);color:var(--color-background)}.btn-danger:hover:not(:disabled):not(.disabled){background-color:var(--color-danger)}.btn-sm{padding:var(--spacing-xs) var(--spacing-md);font-size:var(--font-size-sm)}.btn-large{padding:var(--spacing-md) var(--spacing-xl);font-size:var(--font-size-lg)}.card{background-color:var(--color-background);border-radius:var(--radius-lg);padding:var(--spacing-xl);box-shadow:var(--shadow-md);border:1px solid var(--color-border-light)}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--spacing-lg)}.text-center{text-align:center}.text-sm{font-size:var(--font-size-sm)}.text-lg{font-size:var(--font-size-lg)}.font-medium{font-weight:var(--font-weight-medium)}.font-semibold{font-weight:var(--font-weight-semibold)}.text-primary{color:var(--color-primary)}.text-success{color:var(--color-success)}.text-danger{color:var(--color-danger)}.text-secondary{color:var(--color-text-secondary)}.mb-0{margin-bottom:0}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}.mb-5{margin-bottom:var(--spacing-xl)}.mt-0{margin-top:0}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-3{margin-top:var(--spacing-md)}.mt-4{margin-top:var(--spacing-lg)}.mt-5{margin-top:var(--spacing-xl)}