:root{--color-primary: #0F172A;--color-primary-light: #1E293B;--color-accent: #D4AF37;--color-accent-hover: #B5952F;--color-background: #F8FAFC;--color-surface: #FFFFFF;--color-surface-hover: #F1F5F9;--color-text-main: #0F172A;--color-text-muted: #64748B;--color-text-inverted: #FFFFFF;--color-border: #E2E8F0;--color-error: #EF4444;--color-success: #10B981;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-serif: "Merriweather", Georgia, serif;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--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);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-full: 9999px;--transition-fast: .15s ease-in-out;--transition-normal: .25s ease-in-out}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-background);color:var(--color-text-main);line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-family:var(--font-serif);color:var(--color-primary);line-height:1.2;margin-bottom:var(--spacing-md)}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:500;font-family:var(--font-sans);cursor:pointer;transition:all var(--transition-fast);border:none;font-size:1rem}.btn-primary{background-color:var(--color-primary);color:var(--color-text-inverted)}.btn-primary:hover{background-color:var(--color-primary-light);transform:translateY(-1px)}.btn-secondary{background-color:transparent;border:1px solid var(--color-border);color:var(--color-text-main)}.btn-secondary:hover{background-color:var(--color-surface-hover);border-color:var(--color-primary)}.card{background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--spacing-xl);border:1px solid var(--color-border)}.input-group{margin-bottom:var(--spacing-md)}.input-label{display:block;margin-bottom:var(--spacing-xs);font-size:.875rem;font-weight:500;color:var(--color-text-main)}.input-field{width:100%;padding:.75rem;border-radius:var(--radius-md);border:1px solid var(--color-border);background-color:var(--color-surface);transition:all var(--transition-fast);font-family:var(--font-sans);font-size:1rem}.input-field:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px #d4af371a}.loading-spinner{width:1.5rem;height:1.5rem;border:2px solid transparent;border-top-color:currentColor;border-radius:50%;animation:spin .6s linear infinite;margin-right:var(--spacing-sm)}@keyframes spin{to{transform:rotate(360deg)}}.markdown-content h2{margin-top:4rem;border-top:1px solid var(--color-border);padding-top:2rem;color:var(--color-primary);font-size:1.5rem}.markdown-content h2:first-child{margin-top:0;border-top:none;padding-top:0}.markdown-content p{margin-bottom:var(--spacing-md)}.markdown-content hr{border:0;height:1px;background:var(--color-border);margin:var(--spacing-lg) 0}