:root{--color-bg: #0a0a0f;--color-surface: #141419;--color-surface-raised: #1c1c24;--color-surface-overlay: #24242e;--color-text: #f0f0f0;--color-text-secondary: #8888a0;--color-text-muted: #555566;--color-accent: #8b5cf6;--color-accent-hover: #7c3aed;--color-accent-glow: rgba(139, 92, 246, .3);--color-correct: #22c55e;--color-wrong: #ef4444;--color-warning: #f59e0b;--color-border: #2a2a36;--color-border-strong: #3a3a48;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-full: 9999px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", Arial, sans-serif;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 2rem;--text-4xl: 3rem;--text-5xl: 3.75rem;--text-6xl: 4.5rem;--max-width-prose: 680px;--max-width-page: 1100px;--transition-fast: .1s;--transition-base: .2s;--transition-slow: .3s}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%}body{background-color:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);font-size:var(--text-base);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit}a{color:var(--color-accent);text-decoration:none;transition:color var(--transition-base) ease}a:hover{color:var(--color-accent-hover)}button{background:none;border:none;cursor:pointer;color:inherit}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-md);font-weight:600;font-size:var(--text-base);line-height:1.4;text-decoration:none;transition:background-color var(--transition-base) ease,color var(--transition-base) ease,border-color var(--transition-base) ease,box-shadow var(--transition-base) ease;min-height:44px;cursor:pointer;border:1px solid transparent}.btn-primary{background-color:var(--color-accent);color:#fff}.btn-primary:hover{background-color:var(--color-accent-hover);color:#fff}.btn-secondary{background-color:var(--color-surface-raised);color:var(--color-text);border-color:var(--color-border)}.btn-secondary:hover{border-color:var(--color-border-strong);background-color:var(--color-surface-overlay)}.btn-large{padding:var(--space-md) var(--space-xl);font-size:var(--text-lg);min-height:52px}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}button,a{min-height:44px}.container{width:100%;max-width:var(--max-width-page);margin-left:auto;margin-right:auto;padding-left:var(--space-lg);padding-right:var(--space-lg)}.section{padding-top:var(--space-2xl);padding-bottom:var(--space-2xl)}@media(min-width:768px){.section{padding-top:80px;padding-bottom:80px}}.section-title{font-size:var(--text-3xl);font-weight:700;text-align:center;margin-bottom:var(--space-2xl)}@media(min-width:768px){.section-title{font-size:var(--text-4xl)}}.header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:1000;background-color:#0a0a0feb;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border)}.header-inner[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;height:64px}.logo[data-astro-cid-3ef6ksr2]{font-size:var(--text-xl);font-weight:700;color:var(--color-text);text-decoration:none}.logo[data-astro-cid-3ef6ksr2]:hover{color:var(--color-accent)}.nav-desktop[data-astro-cid-3ef6ksr2]{display:none;align-items:center;gap:var(--space-lg)}.nav-desktop[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{color:var(--color-text-secondary);font-size:var(--text-sm);font-weight:500;min-height:44px;display:inline-flex;align-items:center}.nav-desktop[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{color:var(--color-text)}.nav-desktop[data-astro-cid-3ef6ksr2] .btn[data-astro-cid-3ef6ksr2]{color:#fff;font-size:var(--text-sm)}.mobile-menu[data-astro-cid-3ef6ksr2]{position:relative}.hamburger[data-astro-cid-3ef6ksr2]{display:flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:10px;cursor:pointer;list-style:none}.hamburger[data-astro-cid-3ef6ksr2]::-webkit-details-marker{display:none}.hamburger-line[data-astro-cid-3ef6ksr2]{display:block;width:24px;height:2px;background-color:var(--color-text);border-radius:1px;transition:transform var(--transition-base) ease,opacity var(--transition-base) ease}.mobile-menu[data-astro-cid-3ef6ksr2][open] .hamburger-line[data-astro-cid-3ef6ksr2]:nth-child(1){transform:translateY(7px) rotate(45deg)}.mobile-menu[data-astro-cid-3ef6ksr2][open] .hamburger-line[data-astro-cid-3ef6ksr2]:nth-child(2){opacity:0}.mobile-menu[data-astro-cid-3ef6ksr2][open] .hamburger-line[data-astro-cid-3ef6ksr2]:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.nav-dropdown[data-astro-cid-3ef6ksr2]{position:absolute;top:calc(100% + 8px);right:0;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-sm);min-width:200px;display:flex;flex-direction:column;gap:var(--space-xs)}.nav-dropdown[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--text-sm);font-weight:500;min-height:44px}.nav-dropdown[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{background-color:var(--color-surface-raised);color:var(--color-text)}.nav-dropdown[data-astro-cid-3ef6ksr2] .btn[data-astro-cid-3ef6ksr2]{color:#fff;justify-content:center;margin-top:var(--space-xs)}@media(min-width:768px){.mobile-menu[data-astro-cid-3ef6ksr2]{display:none}.nav-desktop[data-astro-cid-3ef6ksr2]{display:flex}}.footer[data-astro-cid-sz7xmlte]{background-color:var(--color-surface);border-top:1px solid var(--color-border);padding-top:var(--space-2xl);padding-bottom:var(--space-lg)}.footer-grid[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:1fr;gap:var(--space-xl);margin-bottom:var(--space-2xl)}.footer-logo[data-astro-cid-sz7xmlte]{font-size:var(--text-lg);font-weight:700;color:var(--color-text);margin-bottom:var(--space-xs)}.footer-tagline[data-astro-cid-sz7xmlte]{color:var(--color-text-secondary);font-size:var(--text-sm)}.footer-heading[data-astro-cid-sz7xmlte]{font-size:var(--text-sm);font-weight:600;color:var(--color-text);margin-bottom:var(--space-sm)}.footer-links[data-astro-cid-sz7xmlte]{display:flex;flex-direction:column;gap:var(--space-sm)}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--color-text-secondary);font-size:var(--text-sm);min-height:auto}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--color-text)}.footer-bottom[data-astro-cid-sz7xmlte]{border-top:1px solid var(--color-border);padding-top:var(--space-lg)}.footer-bottom[data-astro-cid-sz7xmlte] p[data-astro-cid-sz7xmlte]{font-size:var(--text-sm);color:var(--color-text-muted)}@media(min-width:768px){.footer-grid[data-astro-cid-sz7xmlte]{grid-template-columns:2fr 1fr 1fr}}