:root{--bg: #f3f3ec;--surface: #fdfdfa;--surface-alt: #eae9df;--ink: #13212f;--ink-soft: #47555f;--ink-faint: #7b8790;--navy: #1d3a5f;--navy-deep: #0e2032;--navy-ink: #ffffff;--brass: #a97a2e;--brass-strong: #8a6323;--brass-tint: #c99a4c;--line: rgba(19,33,47,.14);--line-soft: rgba(19,33,47,.08);--shadow: 0 20px 44px -28px rgba(14,32,50,.35);--font-display: "Source Serif 4", Georgia, "Times New Roman", serif;--font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--bg: #0c1620;--surface: #13212f;--surface-alt: #182838;--ink: #eceae2;--ink-soft: #b3bec6;--ink-faint: #7f8d97;--navy: #7ea3d6;--navy-deep: #060d15;--navy-ink: #071019;--brass: #d6a75a;--brass-strong: #e8bd74;--brass-tint: #b98a3f;--line: rgba(236,234,226,.16);--line-soft: rgba(236,234,226,.08);--shadow: 0 20px 44px -28px rgba(0,0,0,.6)}}:root[data-theme=dark]{--bg: #0c1620;--surface: #13212f;--surface-alt: #182838;--ink: #eceae2;--ink-soft: #b3bec6;--ink-faint: #7f8d97;--navy: #7ea3d6;--navy-deep: #060d15;--navy-ink: #071019;--brass: #d6a75a;--brass-strong: #e8bd74;--brass-tint: #b98a3f;--line: rgba(236,234,226,.16);--line-soft: rgba(236,234,226,.08);--shadow: 0 20px 44px -28px rgba(0,0,0,.6)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}a{color:inherit}h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;margin:0;text-wrap:balance;color:var(--ink)}p{margin:0}.container{width:100%;max-width:1180px;margin-inline:auto;padding-inline:28px}section{position:relative}::selection{background:var(--brass);color:var(--navy-deep)}:focus-visible{outline:2px solid 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p{font-size:.78rem;color:var(--ink-faint);max-width:62ch}@media (max-width: 880px){.nav-toggle{display:flex}.nav-links{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:4px 28px 12px}.nav-links.open{display:flex}.nav-links li{border-top:1px solid var(--line-soft)}.nav-links li:first-child{border-top:none}.nav-links a{display:block;padding-block:14px}.hero{padding-block:52px 64px}.hero:before{width:74%;opacity:.6}.hero-sheet-tag{top:20px;right:20px}.section-pad{padding-block:64px}.section-pad.tight{padding-block:56px}.feature-grid{grid-template-columns:1fr 1fr}.course-grid,.pricing-grid,.testi-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.cta-row{flex-direction:column;align-items:flex-start}.cta-band{padding-block:52px}}@media (max-width: 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