:root{--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-secondary: #6b7280;--color-success: #10b981;--color-warning: #f59e0b;--color-error: #ef4444;--color-bg: #ffffff;--color-bg-secondary: #f9fafb;--color-text: #111827;--color-text-secondary: #6b7280;--color-border: #e5e7eb;--border-radius: .5rem;--shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px 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)}*{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-family);font-size:16px;line-height:1.6;color:var(--color-text);background-color:var(--color-bg)}body{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{margin-bottom:.5rem;font-weight:600;line-height:1.2}p{margin-bottom:1rem}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover);text-decoration:underline}button{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;font-size:.875rem;font-weight:500;border-radius:var(--border-radius);border:1px solid var(--color-border);background-color:var(--color-bg);color:var(--color-text);cursor:pointer;transition:all .2s ease}button:hover{background-color:var(--color-bg-secondary)}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--color-primary);border-color:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover);border-color:var(--color-primary-hover)}.card{background-color:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--border-radius);padding:1.5rem;box-shadow:var(--shadow)}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.loading{display:flex;align-items:center;justify-content:center;min-height:200px;color:var(--color-text-secondary)}@media(max-width:768px){.container{padding:0 .5rem}.card{padding:1rem}}