:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-light: #dbeafe;--color-secondary: #64748b;--color-success: #22c55e;--color-warning: #f59e0b;--color-error: #ef4444;--color-bg: #f8fafc;--color-bg-card: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--color-text-light: #94a3b8;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--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);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace}html{font-size:16px;line-height:1.5}body{background-color:var(--color-bg);color:var(--color-text)}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.25;color:var(--color-text)}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}h4{font-size:1.125rem}p{margin-bottom:var(--spacing-md)}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);font-size:.875rem;font-weight:500;border-radius:var(--radius-md);border:none;cursor:pointer;transition:all .15s ease}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.btn-secondary{background-color:var(--color-bg);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background-color:var(--color-border)}.btn-lg{padding:var(--spacing-md) var(--spacing-lg);font-size:1rem}.card{background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-sm)}.form-group{margin-bottom:var(--spacing-md)}.form-label{display:block;font-size:.875rem;font-weight:500;margin-bottom:var(--spacing-xs);color:var(--color-text)}.form-input{width:100%;padding:var(--spacing-sm) var(--spacing-md);font-size:.875rem;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-bg-card);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-light)}.form-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center;background-size:1rem;padding-right:2.5rem}.text-muted{color:var(--color-text-muted)}.text-error{color:var(--color-error)}.text-success{color:var(--color-success)}.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.font-mono{font-family:var(--font-mono)}.mt-sm{margin-top:var(--spacing-sm)}.mt-md{margin-top:var(--spacing-md)}.mt-lg{margin-top:var(--spacing-lg)}.mb-sm{margin-bottom:var(--spacing-sm)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}@keyframes spin{to{transform:rotate(360deg)}}.animate-spin{animation:spin 1s linear infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}