:root{--color-primary: #37003c;--color-primary-hover: #4d0a53;--color-primary-contrast: #ffffff;--color-accent: #0a6c4f;--color-text: #16161d;--color-text-muted: #4b5563;--color-text-on-dark: #ffffff;--color-bg: #f3f4f7;--color-surface: #ffffff;--color-surface-alt: #f7f8fb;--color-surface-dark: #1f1235;--color-border: #e1e4ec;--color-border-control: #7b89a0;--color-danger: #b3261e;--color-warning: #e6b84a;--color-success: #117e39;--color-ease-easy: #5cc28a;--color-ease-neutral: #f1f1f4;--color-ease-hard: #ef8b82;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(31, 18, 53, .06);--shadow-md: 0 2px 8px rgba(31, 18, 53, .08);--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.25rem;--text-xl: 1.6rem;--text-2xl: 2rem;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--z-sticky: 20;--z-banner: 30;--content-max-width: 1200px;--focus-ring-color: #1c62eb;--transition-fast: .15s ease}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);font-size:var(--text-base);line-height:1.5}:focus-visible{outline:2px solid var(--focus-ring-color);outline-offset:2px}.btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);border:1px solid transparent;font:inherit;font-weight:var(--weight-semibold);cursor:pointer;transition:background var(--transition-fast)}.btn-primary{background:var(--color-primary);color:var(--color-primary-contrast)}.btn-primary:hover{background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border-control)}.btn-secondary:hover{background:var(--color-surface-alt)}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}