.flex{display:flex}.row{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}.text-xs{font-size:12px;line-height:1.25}.text-secondary{color:var(--ink-secondary)}.mono{font-family:var(--font-mono, ui-monospace, monospace)}*{margin:0;box-sizing:border-box}body{background:var(--bg-gradient);color:var(--ink);-webkit-font-smoothing:antialiased;transition:background var(--duration-normal) var(--ease-default),color var(--duration-normal) var(--ease-default)}body:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;opacity:.03;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-repeat:repeat;background-size:256px 256px}.app{position:relative;z-index:1}.app{min-height:100vh}.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 48px;border-bottom:1px solid var(--border);background:var(--surface-overlay);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:sticky;top:0;z-index:10}.topbar h1{font-size:18px;font-weight:600}.topbar-nav{display:flex;gap:16px;align-items:center}.topbar-nav a{font-size:13px;color:var(--sol-accent-ink);text-decoration:none;font-weight:500;transition:opacity var(--duration-fast)}.topbar-nav a:hover{opacity:.8}.topbar-nav .active-link{font-size:13px;font-weight:600;color:var(--ink)}.theme-toggle{font-family:var(--font-sans);font-size:13px;font-weight:500;padding:6px 16px;border-radius:var(--radius-pill);border:1px solid var(--border);background:var(--background-sunken);color:var(--ink);cursor:pointer;transition:background var(--duration-fast),border-color var(--duration-fast)}.theme-toggle:hover{background:var(--background-sunken);border-color:var(--border-hairline)}main{max-width:1100px;margin:0 auto;padding:48px}.page-intro{margin-bottom:48px}.page-intro h2{font-family:var(--font-serif);font-size:32px;font-weight:400;letter-spacing:-.02em;margin-bottom:8px}.page-intro p{font-size:14px;color:var(--ink-secondary);line-height:1.5;max-width:680px}.section-card{background:var(--surface-overlay);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--elevation-1);padding:36px;margin-bottom:40px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.section-card-header{margin-bottom:24px}.section-card-title{font-size:18px;font-weight:700;margin-bottom:6px}.section-card-desc{font-size:13px;color:var(--ink-secondary);line-height:1.5;max-width:640px}.subsection{margin-top:28px}.subsection-title{font-size:12px;line-height:1.25;font-weight:var(--weight-label);text-transform:uppercase;letter-spacing:var(--tracking-caps);color:var(--ink-tertiary);margin-bottom:14px}.row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.patterns-divider{margin:48px 0 40px;padding-top:48px;border-top:2px solid var(--border)}.patterns-divider-title{font-family:var(--font-serif);font-size:28px;font-weight:400;letter-spacing:-.02em;margin-bottom:8px}.patterns-divider-desc{font-size:14px;color:var(--ink-secondary);line-height:1.5;max-width:640px}.demo-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:600px}.demo-field{display:flex;flex-direction:column;gap:8px}.demo-inline{display:flex;align-items:center;gap:12px}.demo-stack{display:flex;flex-direction:column;gap:12px}