.navbar-icon-btn{background:#ffffff1f;border:1px solid rgba(255,255,255,.2)!important;color:#fff!important;border-radius:8px;height:36px;min-width:36px;padding:0 .6rem;gap:.35rem;display:flex;align-items:center;justify-content:center;transition:all .2s;font-size:.75rem;font-weight:600;letter-spacing:.03em;cursor:pointer;text-decoration:none}.navbar-icon-btn:hover{background:#ffffff38;border-color:#fff6!important}[data-theme=light] .navbar-icon-btn{background:#1a1a2e14!important;border-color:#1a1a2e33!important;color:#1a1a2e!important}[data-theme=light] .navbar-icon-btn:hover{background:#1a1a2e26!important}:root{--bg-primary: #000000;--bg-secondary: #0a0a0a;--bg-card: rgba(16, 13, 29, .85);--bg-input: rgba(27, 22, 48, .85);--text-primary: #ffffff;--text-secondary: #8a8fa8;--text-muted: rgba(255,255,255,.5);--border-color: #4f4f4f;--border-subtle: rgba(255,255,255,.07);--footer-bg: #050505;--prefooter-bg: #0a0a0a;--accent: #e81cff;--accent-2: #40c9ff;--neon-purple: #e81cff;--neon-blue: #40c9ff;--transition: background-color .3s ease, color .3s ease, border-color .3s ease}[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f5f5ff;--bg-card: rgba(255, 255, 255, .95);--bg-input: #ffffff;--text-primary: #1a1a2e;--text-secondary: #4a4a6a;--text-muted: rgba(26, 26, 46, .5);--border-color: #d0cee8;--border-subtle: rgba(26, 26, 46, .08);--footer-bg: #f0f0fa;--prefooter-bg: #f8f8ff;--neon-purple: #7c3aed;--neon-blue: #2563eb}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background-color:var(--bg-primary);color:var(--text-primary);font-family:Red Hat Display,sans-serif!important;font-size:1rem;line-height:1.7;transition:var(--transition)}*,.navbar,.btn,.dropdown-item,.nav-link{font-family:Red Hat Display,sans-serif!important}a{color:inherit}img{max-width:100%;display:block}#header .navbar-nav{align-items:center;gap:4px}#header .navbar-nav .nav-item{display:flex;align-items:center}#header .navbar-nav 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.hs-sub-menu{position:static!important;box-shadow:none!important;width:100%;padding-left:1.5rem;background:transparent!important;border:none!important}[data-theme=light] #header .navbar-nav .hs-sub-menu{background:transparent!important}#header .navbar-nav .hs-sub-menu .dropdown-item{padding:.5rem 1rem;color:#ffffffb3}[data-theme=light] #header .navbar-nav .hs-sub-menu .dropdown-item{color:#4a4a6a!important}#header .navbar-nav .theme-toggle{margin:.5rem 1.25rem!important}#header .navbar-nav .btn.btn-light,#header .navbar-nav a.btn.btn-light{margin:.5rem 1.25rem!important;width:calc(100% - 2.5rem);display:block;text-align:center}}.prefooter-section{background:#0a0a0a;border-top:1px solid rgba(255,255,255,.07);transition:var(--transition)}.site-footer-main{background:#050505;border-top:1px solid rgba(255,255,255,.05);font-family:Red Hat Display,sans-serif;transition:var(--transition)}.footer-link{transition:color .2s}.footer-link:hover{color:#fff!important}[data-theme=light] 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li{color:var(--text-secondary);line-height:1.8}.lesson-content a{color:var(--neon-purple);text-decoration:none}.lesson-content a:hover{text-decoration:underline}.lesson-content pre{background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;padding:1.25rem;overflow-x:auto}.lesson-content code:not(pre code){background:var(--bg-card);border:1px solid var(--border-color);border-radius:4px;padding:.1em .4em;font-size:.9em}.code-pre .shiki,.lesson-content .astro-code{background-color:var(--shiki-dark-bg)!important;color:var(--shiki-dark)!important}.code-pre .shiki span,.lesson-content .astro-code span{color:var(--shiki-dark)!important}[data-theme=light] .code-pre .shiki,[data-theme=light] .lesson-content .astro-code{background-color:var(--shiki-light-bg)!important;color:var(--shiki-light)!important;border-color:#d0cee8}[data-theme=light] .code-pre .shiki span,[data-theme=light] .lesson-content .astro-code span{color:var(--shiki-light)!important}.lesson-content .astro-code,.lesson-content pre.astro-code{border-radius:8px;padding:1.25rem;overflow-x:auto;font-size:.87rem;line-height:1.65;margin:1.25rem 0;border:1px solid var(--border-color)}[data-theme=light] .lesson-content .astro-code{border-color:#d0cee8}.code-block-wrapper{position:relative;margin:1.25rem 0}.code-filename{background:#ffffff0f;border:1px solid var(--border-color);border-bottom:0;border-radius:8px 8px 0 0;padding:.4rem 1rem;font-size:.8rem;color:var(--text-secondary);font-family:monospace}.code-pre{border:1px solid var(--border-color);border-radius:8px;overflow:hidden;margin:0;position:relative}.code-pre.has-filename{border-radius:0 0 8px 8px}.code-pre pre{margin:0;padding:1.25rem;overflow-x:auto;font-size:.87rem;line-height:1.65;border-radius:0}[data-theme=light] .code-filename{background:#ebebf5;border-color:#d0cee8;color:#4a4a6a}[data-theme=light] .code-pre{border-color:#d0cee8}.copy-btn{position:absolute;top:.5rem;right:.5rem;background:#ffffff14;border:1px solid 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