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64px));margin-inline:auto}.icon{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.brand{display:inline-flex;align-items:baseline;font:700 38px/1 var(--font-body);letter-spacing:-1.6px;direction:ltr}.brand span{color:var(--accent)}.btn{display:inline-flex;justify-content:center;align-items:center;gap:12px;min-height:50px;border:1px solid var(--control-border);border-radius:var(--radius-sm);padding:12px 24px;background:var(--surface);font-size:17px;line-height:1.4;font-weight:700;text-align:center;transition:background-color .12s,border-color .12s}.btn-primary,.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent);box-shadow:0 2px 0 var(--accent-hover)}.btn-ghost,.btn.quiet{background:transparent}.btn:active{transform:translateY(1px);box-shadow:none}.btn:disabled{opacity:.6}.icon-btn{width:44px;height:44px;padding:10px;display:grid;place-items:center;border:1px solid transparent;border-radius:6px;background:transparent}.text-link{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-weight:700;text-decoration:underline;text-underline-offset:5px}.lead,.muted{color:var(--muted)}.small{font-size:15px}.site-header{background:var(--canvas)}.header-inner{min-height:88px;justify-content:space-between;gap:32px}.header-inner,.header-links{display:flex;align-items:center}.header-links{justify-content:center;gap:36px;font-size:17px;font-weight:600}.header-links a{display:inline-flex;align-items:center;min-height:44px}.header-actions{display:flex;align-items:center;gap:12px}.header-actions .btn{min-height:42px;padding:8px 20px;font-size:16px}.site-footer{margin-top:80px;border-top:1px solid var(--line);padding-block:28px;color:var(--muted);font-size:15px}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:24px}progress{display:block;width:100%;height:5px;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;border-radius:4px;overflow:hidden;background:var(--line);accent-color:var(--accent)}progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--accent);border-radius:4px}progress::-moz-progress-bar{background:var(--accent);border-radius:4px}:focus-visible{outline:2px solid var(--focus);outline-offset:4px}h1:focus,h2:focus,h3:focus{outline:none}.learn-skip,.skip{position:fixed;inset-block-start:12px;inset-inline-start:16px;z-index:99;background:var(--surface);padding:12px;-webkit-clip-path:inset(50%);clip-path:inset(50%)}.learn-skip:focus,.skip:focus{-webkit-clip-path:none;clip-path:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;-webkit-clip-path:inset(50%);clip-path:inset(50%);white-space:nowrap;border:0}@media(hover:hover) and (pointer:fine){.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-ghost:hover,.icon-btn:hover{background:var(--accent-soft)}}@media(max-width:600px){.wrap{width:calc(100% - 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