:root{--c-bg:#f7f7f7;--c-surface:#fff;--c-surface-2:#efefef;--c-text:#2a2a2a;--c-text-strong:#1a1a1a;--c-muted:#6b6b6b;--c-border:#d8d8d8;--c-border-strong:#b5b5b5;--c-grid:#00000006;--maxw:1080px;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace}:root[data-theme=dark]{--c-bg:#111;--c-surface:#1a1a1a;--c-surface-2:#252525;--c-text:#e5e5e5;--c-text-strong:#fff;--c-muted:#ababab;--c-border:#333;--c-border-strong:#737373;--c-grid:#ffffff0b}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--c-bg);color:var(--c-text);background-image:linear-gradient(var(--c-grid) 1px, transparent 1px), linear-gradient(90deg, var(--c-grid) 1px, transparent 1px);background-size:32px 32px;flex-direction:column;min-height:100vh;margin:0;line-height:1.6;display:flex;overflow-x:hidden}main{flex:1}a{color:inherit;text-decoration:none}img,svg,iframe{max-width:100%}button,input,textarea,select{font:inherit}.accent{color:var(--c-text);background:var(--c-surface-2);border:2px 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a.active{color:var(--c-text-strong);border-bottom-color:var(--c-text-strong)}.theme-toggle{cursor:pointer;background:0 0;border:0;flex:none;width:62px;min-height:34px;padding:0}.theme-toggle-track{border:2px solid var(--c-text-strong);background:linear-gradient(135deg, var(--c-surface), var(--c-surface-2));width:62px;height:34px;box-shadow:3px 3px 0 var(--c-border-strong), inset 0 0 0 2px #ffffff47;border-radius:999px;transition:background .18s,box-shadow 80ms,transform 80ms;display:block;position:relative}:root[data-theme=dark] .theme-toggle-track{box-shadow:3px 3px 0 var(--c-border-strong), inset 0 0 0 2px #ffffff14;background:linear-gradient(135deg,#2b2b2b,#0f0f0f)}.theme-toggle:hover .theme-toggle-track{box-shadow:1px 1px 0 var(--c-border-strong), inset 0 0 0 2px #ffffff2e;transform:translate(1px,1px)}.theme-toggle:focus-visible{outline:3px solid var(--c-border-strong);outline-offset:3px}.theme-toggle-thumb{border:2px solid var(--c-text-strong);background:var(--c-bg);width:22px;height:22px;box-shadow:1px 1px 0 var(--c-border-strong), 0 2px 8px #00000024;border-radius:50%;transition:transform .2s cubic-bezier(.2,.8,.2,1),background .18s;position:absolute;top:4px;left:4px}:root[data-theme=dark] .theme-toggle-thumb{background:var(--c-text-strong);transform:translate(28px)}.btn{background:var(--c-text-strong);color:var(--c-bg);text-transform:uppercase;letter-spacing:.06em;border:2px solid var(--c-text-strong);min-height:44px;box-shadow:3px 3px 0 var(--c-border-strong);cursor:pointer;border-radius:0;justify-content:center;align-items:center;padding:10px 22px;font-size:.85rem;font-weight:700;transition:transform 80ms,box-shadow 80ms;display:inline-flex}.btn:hover{box-shadow:1px 1px 0 var(--c-border-strong);transform:translate(2px,2px)}.btn:active{box-shadow:0 0 0 var(--c-border-strong);transform:translate(3px,3px)}.btn-ghost{color:var(--c-text-strong);box-shadow:3px 3px 0 var(--c-border-strong);background:0 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0}.page-head{margin-bottom:26px}.page-head h1{font-size:clamp(1.55rem,10vw,2.15rem)}.page-head p{font-size:.92rem}.btn{text-align:center;width:100%;padding-inline:14px}.btn-lg{padding-block:12px;font-size:.82rem}.site-footer{padding:24px 0}.site-footer p{font-size:.72rem}}