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.Footer-module__Grjkva__footer{background-color:var(--color-bg-secondary);border-top:1px solid var(--color-border);margin-top:auto}.Footer-module__Grjkva__footerInner{padding-block:var(--space-12)}.Footer-module__Grjkva__footerGrid{gap:var(--space-8);grid-template-columns:1fr;display:grid}@media (min-width:640px){.Footer-module__Grjkva__footerGrid{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.Footer-module__Grjkva__footerGrid{grid-template-columns:2fr 1fr 1fr 1fr}}.Footer-module__Grjkva__brand{gap:var(--space-4);flex-direction:column;display:flex}.Footer-module__Grjkva__brandLogo{align-items:center;gap:var(--space-2);color:var(--color-text);text-decoration:none;display:inline-flex}.Footer-module__Grjkva__brandLogo:hover{color:var(--color-text);text-decoration:none}.Footer-module__Grjkva__brandIcon{font-size:var(--text-xl);line-height:1}.Footer-module__Grjkva__brandName{font-size:var(--text-lg);font-weight:var(--weight-bold);letter-spacing:-.02em}.Footer-module__Grjkva__brandAccent{background:linear-gradient(135deg,var(--color-primary),var(--color-accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.Footer-module__Grjkva__brandDescription{font-size:var(--text-sm);color:var(--color-text-secondary);line-height:var(--leading-relaxed);max-width:36ch}.Footer-module__Grjkva__faqButton{border-radius:var(--radius-full);border:1px solid color-mix(in oklab,var(--color-primary)40%,var(--color-border)60%);background:color-mix(in oklab,var(--color-primary-light)65%,var(--color-surface)35%);width:fit-content;color:var(--color-primary);font-size:var(--text-sm);font-weight:var(--weight-semibold);padding:var(--space-2)var(--space-4);transition:background-color var(--duration-fast)var(--ease-default),transform var(--duration-fast)var(--ease-default),border-color var(--duration-fast)var(--ease-default);justify-content:center;align-items:center;display:inline-flex}.Footer-module__Grjkva__faqButton:hover{color:var(--color-primary-hover);background:color-mix(in oklab,var(--color-primary-light)80%,var(--color-surface)20%);border-color:color-mix(in oklab,var(--color-primary)65%,var(--color-border)35%);text-decoration:none;transform:translateY(-1px)}.Footer-module__Grjkva__linkGroup{gap:var(--space-4);flex-direction:column;display:flex}.Footer-module__Grjkva__linkGroupTitle{font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-text);text-transform:uppercase;letter-spacing:.05em}.Footer-module__Grjkva__linkList{gap:var(--space-3);flex-direction:column;display:flex}.Footer-module__Grjkva__footerLink{font-size:var(--text-sm);color:var(--color-text-secondary);transition:color var(--duration-fast)var(--ease-default);text-decoration:none}.Footer-module__Grjkva__footerLink:hover{color:var(--color-text);text-decoration:none}.Footer-module__Grjkva__bottomBar{margin-top:var(--space-10);padding-top:var(--space-6);border-top:1px solid var(--color-border);font-size:var(--text-sm);color:var(--color-text-tertiary)}
:root{--color-bg:#fff;--color-bg-secondary:#f6f7f9;--color-bg-tertiary:#eef0f4;--color-surface:#fff;--color-surface-elevated:#fff;--color-text:#111827;--color-text-secondary:#6b7280;--color-text-tertiary:#9ca3af;--color-text-inverse:#fff;--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-primary-light:#dbeafe;--color-accent:#8b5cf6;--color-accent-hover:#7c3aed;--color-accent-light:#ede9fe;--color-border:#e5e7eb;--color-border-strong:#d1d5db;--color-focus:#2563eb;--color-success:#16a34a;--color-warning:#d97706;--color-error:#dc2626;--color-info:#0284c7;--cat-alkali:#ff8a65;--cat-alkaline-earth:#ffb74d;--cat-transition:#ffd54f;--cat-post-transition:#dce775;--cat-metalloid:#aed581;--cat-nonmetal:#81c784;--cat-halogen:#4fc3f7;--cat-noble-gas:#7986cb;--cat-lanthanide:#9575cd;--cat-actinide:#ba68c8;--cat-unknown:#e0e0e0;--font-sans:var(--font-inter,"Inter"),system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"Fira Code",ui-monospace,SFMono-Regular,"SF Mono",Menlo,monospace;--text-xs:.75rem;--text-sm:.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--text-4xl:2.25rem;--leading-tight:1.25;--leading-normal:1.6;--leading-relaxed:1.75;--weight-normal:400;--weight-medium:500;--weight-semibold:600;--weight-bold:700;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--space-20:80px;--space-24:96px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--shadow-xs:0 1px 2px #0000000d;--shadow-sm:0 1px 3px #0000001a,0 1px 2px #0000000f;--shadow-md:0 4px 6px #00000012,0 2px 4px #0000000f;--shadow-lg:0 10px 15px #0000001a,0 4px 6px #0000000d;--shadow-xl:0 20px 25px #0000001a,0 8px 10px #0000000a;--ease-default:cubic-bezier(.4,0,.2,1);--duration-fast:.15s;--duration-normal:.25s;--duration-slow:.35s;--header-height:64px;--max-width:1400px;--max-width-content:900px;--sidebar-width:260px;--grid-gap:var(--space-6);--bp-sm:640px;--bp-md:768px;--bp-lg:1024px;--bp-xl:1280px;--bp-2xl:1536px;--z-base:0;--z-dropdown:100;--z-sticky:200;--z-overlay:300;--z-modal:400;--z-toast:500;--font-semibold:var(--weight-semibold);--font-bold:var(--weight-bold);--color-text-muted:var(--color-text-secondary);--color-bg-hover:var(--color-bg-tertiary);--ease-out:var(--ease-default);--cat-alkaline:var(--cat-alkaline-earth);--cat-post-trans:var(--cat-post-transition);--cat-noble:var(--cat-noble-gas);--text-primary:var(--color-text);--text-secondary:var(--color-text-secondary);--surface-card:var(--color-surface);--surface-background:var(--color-bg-secondary);--surface-hover:var(--color-bg-tertiary);--text-muted:var(--color-text-tertiary);--border-color:var(--color-border)}@media (prefers-color-scheme:dark){:root{--color-bg:#0c0c0f;--color-bg-secondary:#16171c;--color-bg-tertiary:#1e1f26;--color-surface:#1a1b22;--color-surface-elevated:#22232c;--color-text:#ededed;--color-text-secondary:#9ca3af;--color-text-tertiary:#6b7280;--color-text-inverse:#111827;--color-primary:#60a5fa;--color-primary-hover:#93bbfd;--color-primary-light:#60a5fa26;--color-accent:#a78bfa;--color-accent-hover:#c4b5fd;--color-accent-light:#a78bfa26;--color-border:#2d2e36;--color-border-strong:#3f4049;--color-focus:#60a5fa;--cat-alkali:#d84315;--cat-alkaline-earth:#ef6c00;--cat-transition:#ffa000;--cat-post-transition:#afb42b;--cat-metalloid:#689f38;--cat-nonmetal:#388e3c;--cat-halogen:#0288d1;--cat-noble-gas:#303f9f;--cat-lanthanide:#5e35b1;--cat-actinide:#8e24aa;--cat-unknown:#616161;--shadow-xs:0 1px 2px #0000004d;--shadow-sm:0 1px 3px #0006,0 1px 2px #0000004d;--shadow-md:0 4px 6px #0006,0 2px 4px #0000004d;--shadow-lg:0 10px 15px #0006,0 4px 6px #0000004d;--shadow-xl:0 20px 25px #00000080,0 8px 10px #0000004d}}
*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;tab-size:4;scroll-behavior:smooth}body{font-family:var(--font-sans);font-size:var(--text-base);color:var(--color-text);background-color:var(--color-bg);line-height:var(--leading-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100dvh}a{color:var(--color-primary);transition:color var(--duration-fast)var(--ease-default);text-decoration:none}a:hover{color:var(--color-primary-hover)}a:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px;border-radius:var(--radius-sm)}img,picture,video,canvas,svg{max-width:100%;display:block}input,button,textarea,select{font:inherit;color:inherit}button{cursor:pointer;background:0 0;border:none}h1,h2,h3,h4,h5,h6{line-height:var(--leading-tight);font-weight:var(--weight-bold);color:var(--color-text)}ul,ol{list-style:none}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}.visually-hidden{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.site-wrapper{flex-direction:column;min-height:100dvh;display:flex}.site-main{flex:1}.container{width:100%;max-width:var(--max-width);padding-inline:var(--space-4);margin-inline:auto}@media (min-width:768px){.container{padding-inline:var(--space-6)}}@media (min-width:1280px){.container{padding-inline:var(--space-8)}}.container--narrow{max-width:var(--max-width-content)}.grid{gap:var(--grid-gap);display:grid}.grid--2,.grid--3,.grid--4{grid-template-columns:1fr}@media (min-width:640px){.grid--2,.grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.grid--3{grid-template-columns:repeat(3,1fr)}.grid--4{grid-template-columns:repeat(4,1fr)}}.layout-with-sidebar{gap:var(--grid-gap);grid-template-columns:1fr;display:grid}@media (min-width:1024px){.layout-with-sidebar{grid-template-columns:var(--sidebar-width)1fr}}.text-center{text-align:center}.text-secondary{color:var(--color-text-secondary)}.section{padding-block:var(--space-12)}.section--sm{padding-block:var(--space-8)}.card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-sm);transition:box-shadow var(--duration-normal)var(--ease-default),transform var(--duration-normal)var(--ease-default)}.card:hover{box-shadow:var(--shadow-md)}.badge{padding:var(--space-1)var(--space-3);font-size:var(--text-xs);font-weight:var(--weight-semibold);border-radius:var(--radius-full);letter-spacing:.02em;align-items:center;display:inline-flex}.badge--primary{background-color:var(--color-primary-light);color:var(--color-primary)}.badge--accent{background-color:var(--color-accent-light);color:var(--color-accent)}.spinner{border:4px solid var(--color-bg-tertiary);border-top-color:var(--color-primary);border-radius:50%;width:48px;height:48px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}