@import "https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap";:root{--bg:#f9f8f4;--surface:#fff;--surface-2:#f3f1ec;--text:#111;--text-2:#444;--text-3:#888;--text-4:#bbb;--border:#e5e3dc;--border-2:#ccc9c0;--accent:#16a34a;--accent-light:#f0fdf4;--accent-hover:#15803d;--accent-dim:#16a34a1f;--hero:#111;--hero-2:#1a1a1a;--hero-text:#f5f3ee;--hero-muted:#666;--hero-border:#252525;--badge-new-bg:#00000085;--badge-new-text:#86efac;--badge-used-bg:#00000085;--badge-used-text:#fde68a;--badge-ref-bg:#00000085;--badge-ref-text:#c4b5fd;--cat-heat-a:#fef3c7;--cat-heat-b:#fbbf24;--cat-solar-a:#fefce8;--cat-solar-b:#fde047;--cat-elec-a:#eff6ff;--cat-elec-b:#93c5fd;--cat-tools-a:#f8fafc;--cat-tools-b:#cbd5e1;--r-sm:4px;--r:8px;--r-lg:14px;--r-xl:22px;--shadow-sm:0 1px 3px #0000000f;--shadow:0 2px 8px #00000014, 0 1px 3px #0000000a;--shadow-md:0 8px 28px #0000001f, 0 2px 8px #0000000f;--font:"Inter", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;--font-mono:"SF Mono", "Fira Code", monospace;--header-h:58px;--max-w:1280px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;font-size:16px}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}