:root{--bg: #ffffff;--bg-soft: #f4f5f6;--bg-panel: #ffffff;--fg: #14161a;--fg-muted: #5a6068;--border: #dcdfe3;--border-strong: #c3c8cf;--accent: #a33823;--accent-fg: #ffffff;--ring: rgba(163, 56, 35, .28);--shadow: 0 1px 0 rgba(20,22,26,.04);--shadow-panel: 0 0 0 1px rgba(20,22,26,.03);--radius: 4px;--radius-sm: 2px;--radius-lg: 6px;--maxw: 1120px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--logo-filter: none;--grid-line: rgba(20,22,26,.045);--grid-line-major: rgba(20,22,26,.075)}@media(prefers-color-scheme:dark){:root{--bg: #16181b;--bg-soft: #1b1e21;--bg-panel: #1e2125;--fg: #e8eaec;--fg-muted: #9aa1a9;--border: #31353a;--border-strong: #454b52;--accent: #d4694f;--accent-fg: #16181b;--ring: rgba(212, 105, 79, .3);--shadow: 0 1px 0 rgba(0,0,0,.3);--shadow-panel: 0 0 0 1px rgba(0,0,0,.25);--logo-filter: invert(1);--grid-line: rgba(255,255,255,.035);--grid-line-major: rgba(255,255,255,.06)}}:root[data-theme=light]{--bg: #ffffff;--bg-soft: #f4f5f6;--bg-panel: #ffffff;--fg: #14161a;--fg-muted: #5a6068;--border: #dcdfe3;--border-strong: #c3c8cf;--accent: #a33823;--accent-fg: #ffffff;--ring: rgba(163,56,35,.28);--shadow: 0 1px 0 rgba(20,22,26,.04);--shadow-panel: 0 0 0 1px rgba(20,22,26,.03);--logo-filter: none;--grid-line: rgba(20,22,26,.045);--grid-line-major: rgba(20,22,26,.075)}:root[data-theme=dark]{--bg: #16181b;--bg-soft: #1b1e21;--bg-panel: #1e2125;--fg: #e8eaec;--fg-muted: #9aa1a9;--border: #31353a;--border-strong: #454b52;--accent: #d4694f;--accent-fg: #16181b;--ring: rgba(212,105,79,.3);--shadow: 0 1px 0 rgba(0,0,0,.3);--shadow-panel: 0 0 0 1px rgba(0,0,0,.25);--logo-filter: invert(1);--grid-line: rgba(255,255,255,.035);--grid-line-major: 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span{font-size:1.1rem;letter-spacing:-.02em}.nav{display:flex;align-items:center;gap:4px;flex-shrink:0}.nav a.navlink{text-decoration:none;color:var(--fg-muted);font-weight:500;font-size:.92rem;padding:8px 11px;border-radius:var(--radius-sm)}.nav a.navlink:hover{color:var(--fg);background:var(--bg-soft)}@media(max-width:620px){.nav a.navlink{display:none}.nav{gap:6px}.nav .btn-primary,.nav .btn-cad{padding:10px 14px;font-size:.92rem}.nav>.btn:not(.btn-cad){display:none}.site-header .container{height:68px}.brand img{height:36px}}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:transparent;color:var(--fg-muted);cursor:pointer}.icon-btn:hover{background:var(--bg-soft);color:var(--fg)}.icon-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:none}.icon-btn .sun{display:none}.icon-btn .moon{display:block}@media(prefers-color-scheme:dark){.icon-btn .sun{display:block}.icon-btn .moon{display:none}}:root[data-theme=dark] .icon-btn .sun{display:block}:root[data-theme=dark] .icon-btn .moon{display:none}:root[data-theme=light] .icon-btn .sun{display:none}:root[data-theme=light] .icon-btn .moon{display:block}.site-footer{border-top:1px solid var(--border);background:var(--bg-soft)}.site-footer .container{padding-top:48px;padding-bottom:48px}.site-footer .fine{font-size:.85rem;color:var(--fg-muted)}.site-footer a{color:var(--fg-muted);text-decoration:none}.site-footer a:hover{color:var(--fg);text-decoration:underline}.center{text-align:center}.pill{display:inline-block;padding:5px 11px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:transparent;font-size:.74rem;font-weight:600;color:var(--fg-muted);text-transform:uppercase;letter-spacing:.1em}.chip{display:inline-block;font-family:var(--mono);font-size:.74rem;padding:4px 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