:root{--color-bg: #ffffff;--color-bg-secondary: #f8f9fa;--color-bg-tertiary: #e9ecef;--color-text: #212529;--color-text-secondary: #6c757d;--color-text-muted: #adb5bd;--color-border: #dee2e6;--color-border-light: #e9ecef;--color-primary: #4361ee;--color-primary-hover: #3a56d4;--color-primary-light: #e8ebfd;--color-danger: #dc3545;--color-danger-hover: #bb2d3b;--color-success: #198754;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: "Courier Prime", "Courier New", Courier, monospace;--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;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--sidebar-width: 280px;--header-height: 56px;--max-content-width: 1200px}[data-theme=dark]{--color-bg: #121212;--color-bg-secondary: #1e1e1e;--color-bg-tertiary: #2a2a2a;--color-text: #e4e4e4;--color-text-secondary: #a0a0a0;--color-text-muted: #666666;--color-border: #333333;--color-border-light: #2a2a2a;--color-primary: #6366f1;--color-primary-hover: #818cf8;--color-primary-light: rgba(99, 102, 241, .15);--color-danger: #f87171;--color-danger-hover: #fca5a5;--color-success: #34d399;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .5);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .6);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .7)}*,*:before,*:after{box-sizing:border-box}html{font-family:var(--font-sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;padding:0;background-color:var(--color-bg);color:var(--color-text)}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;line-height:1.25}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}h4{font-size:var(--font-size-lg)}p{margin:0}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;font-size:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:inherit}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.text-muted{color:var(--color-text-secondary)}.text-small{font-size:var(--font-size-sm)}.app-layout{display:flex;flex-direction:column;min-height:100vh}.app-header{height:var(--header-height);border-bottom:1px solid var(--color-border);background:var(--color-bg);display:flex;align-items:center;padding:0 var(--spacing-lg);position:sticky;top:0;z-index:100}.app-main{flex:1;display:flex}.app-sidebar{width:var(--sidebar-width);border-right:1px solid var(--color-border);background:var(--color-bg-secondary);overflow-y:auto;flex-shrink:0}.app-content{flex:1;overflow-y:auto;padding:var(--spacing-xl)}.container{max-width:var(--max-content-width);margin:0 auto;padding:0 var(--spacing-lg)}.form-group{margin-bottom:var(--spacing-md)}.form-label{display:block;margin-bottom:var(--spacing-xs);font-weight:500;font-size:var(--font-size-sm);color:var(--color-text)}.form-input{width:100%;padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);color:var(--color-text);transition:border-color .15s ease}.form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.form-input::placeholder{color:var(--color-text-muted)}.form-textarea{resize:vertical;min-height:100px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border:1px solid transparent;border-radius:var(--radius-md);font-weight:500;font-size:var(--font-size-sm);line-height:1.5;transition:all .15s ease;cursor:pointer}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-bg);color:var(--color-text);border-color:var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-bg-secondary)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--color-danger-hover)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--color-bg-tertiary);color:var(--color-text)}.btn-sm{padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--font-size-xs)}.btn-lg{padding:var(--spacing-md) var(--spacing-lg);font-size:var(--font-size-base)}.card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-lg)}.card-hover{transition:all .15s ease;cursor:pointer}.card-hover:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md)}.empty-state{text-align:center;padding:var(--spacing-2xl);color:var(--color-text-secondary)}.empty-state-icon{font-size:3rem;margin-bottom:var(--spacing-md);opacity:.5}.empty-state-title{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text);margin-bottom:var(--spacing-sm)}.empty-state-description{margin-bottom:var(--spacing-lg)}.hide-mobile{display:block}.hide-desktop{display:none}.hide-tablet-down{display:block}.show-tablet-down{display:none}@media(max-width:1024px){:root{--header-height: 48px}.hide-tablet-down{display:none!important}.show-tablet-down{display:block!important}.app-content{padding:var(--spacing-lg)}}@media(max-width:640px){.hide-mobile{display:none!important}.hide-desktop{display:block}.container{padding:0 var(--spacing-md)}.app-content{padding:var(--spacing-md)}.app-header{padding:0 var(--spacing-md);gap:var(--spacing-sm)}.form-input{padding:var(--spacing-xs) var(--spacing-sm)}.btn-mobile-full{width:100%}}