:root{--bg: #FAFAF7;--surface: #FFFFFF;--border: #E5E1DA;--border-strong: #C8C3B8;--text: #1A1A1A;--text-secondary: #555550;--text-muted: #737370;--accent: #B8860B;--accent-text: #8B6500;--accent-hover: #9A7009;--accent-light: rgba(184, 134, 11, .08);--sage: #5A6B5D;--sage-light: rgba(90, 107, 93, .08);--blue: #4A7C9B;--rule: #D4CFC5;--shadow-hover: 0 6px 24px rgba(26, 26, 26, .08);--error: #9B4A4A}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;font-size:16px;min-height:100vh;-webkit-font-smoothing:antialiased}a{color:var(--accent-text);text-decoration:none}a:hover{text-decoration:underline}a:visited{color:var(--text-muted)}.nav-links a:visited,.nav-logo:visited,.pattern-tile:visited,.guide-tile:visited,.pattern-card:visited,.guide-card:visited,.related-card:visited,.tool-card:visited,.lesson-link:visited,.featured-pattern:visited,.featured-guide:visited,.featured-card:visited,.problem-card:visited,.stat:visited,.nav-link:visited,.file-item:visited,.further-link:visited,.see-all a:visited,.links a:visited,.submit-btn:visited{color:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:focus-visible{outline:2px solid var(--accent-text);outline-offset:3px;border-radius:2px}:focus:not(:focus-visible){outline:none}.pattern-nav-item:focus-visible,.catalog-toc a:focus-visible,.reading-toc a:focus-visible,.further-link:focus-visible,.lesson-link:focus-visible{border-radius:100px}#main-content:focus{outline:none}html{scroll-behavior:smooth}:target,section[id],.section-rule[id]{scroll-margin-top:80px}@media print{.site-nav{display:none}body{background:#fff;color:#000}footer.site-footer{color:var(--text-secondary)}}@media(prefers-reduced-motion:reduce){*{transition:none!important;transform:none!important}html{scroll-behavior:auto}}.site-nav{border-bottom:1px solid var(--border);padding:0 48px;display:flex;align-items:center;justify-content:space-between;height:64px;position:sticky;top:0;background:#fafaf7eb;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:100}.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:6px;padding:6px 12px;font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-secondary);cursor:pointer}.nav-toggle:hover{border-color:var(--border-strong);color:var(--text)}.nav-logo{font-family:"Instrument Serif",serif;font-size:1.3rem;color:var(--text);text-decoration:none;letter-spacing:-.01em}.nav-logo span{color:var(--accent)}.nav-links{display:flex;gap:32px;list-style:none}.nav-links a{text-decoration:none;color:var(--text-secondary);font-size:.875rem;font-weight:500;letter-spacing:.04em;text-transform:uppercase;transition:color .2s}.nav-links a:hover{color:var(--text);text-decoration:none}.nav-links a[aria-current=page]{color:var(--text);font-weight:600}@media(max-width:600px){.nav-links a[aria-current=page]{font-weight:600;color:var(--accent-text)}}@media(max-width:600px){.site-nav{padding:0 16px;flex-wrap:wrap;height:auto;gap:12px}.nav-logo{font-size:1.1rem;padding:16px 0 0}.nav-toggle{display:inline-flex;align-items:center;margin-left:auto;margin-top:12px}.nav-links{display:none;width:100%;flex-direction:column;gap:8px;padding:0 0 16px}.nav-links a{font-size:.75rem;padding:10px 0;min-height:44px;display:flex;align-items:center}.site-nav.open .nav-links{display:flex}}footer.site-footer{margin-top:80px;padding:32px 48px;border-top:1px solid var(--rule);text-align:center;font-size:.8rem;color:var(--text-secondary)}footer.site-footer .accent{color:var(--accent-text)}.footer-links{margin-top:8px;display:flex;gap:16px;justify-content:center}.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:.8rem;transition:color .2s}.footer-links a:hover{color:var(--accent-text);text-decoration:none}.skip-link[data-astro-cid-5hce7sga]{position:absolute;top:-100%;left:0;background:var(--text);color:var(--bg);padding:8px 16px;font-size:.875rem;font-weight:600;font-family:inherit;text-decoration:none;z-index:9999;border-radius:0 0 6px;transition:top 0s}.skip-link[data-astro-cid-5hce7sga]:focus{top:0}