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0 8px 24px rgba(0, 149, 168, .12);--shadow-navy-hover: 0 8px 24px rgba(17, 46, 81, .35);--shadow-book: 8px 8px 24px rgba(0, 0, 0, .3), 0 20px 40px rgba(0, 0, 0, .15);--shadow-book-hover: 12px 12px 32px rgba(0, 0, 0, .35), 0 24px 48px rgba(0, 0, 0, .2);--shadow-youtube: 0 8px 24px rgba(255, 0, 0, .35);--card-hover-translate: -2px;--box-shadow: var(--shadow-md);--box-shadow-highlight: var(--shadow-highlight);--box-shadow-top: 0 -4px 6px -1px rgba(0, 0, 0, .07);--box-shadow-hover: var(--shadow-card-hover);--border-radius-sm: 4px;--border-radius: 8px;--border-radius-lg: 12px;--border-radius-xl: 16px;--border-color: var(--slate-200);--border-color-strong: var(--slate-300);--button-active-text: #ffffff;--darkmode-border: var(--slate-300);--darkmode-shift: 0px;--darkmode-bg: var(--slate-200);--darkmode-box-shadow: none;--max-width: 1200px;--spacing-section: var(--space-8);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);--landing-bg: var(--slate-900)}html.dark,body.dark{--body-bg: var(--slate-950);--menu-bg: var(--slate-900);--menu-bg-transparent: rgba(15, 20, 25, .96);--link: var(--color-accent-light);--link-hover: var(--color-accent);--highlight: var(--color-accent);--highlight-dark: var(--color-accent-dark);--highlight-light: var(--color-accent-light);--cta: var(--color-accent);--cta-dark: var(--color-accent-dark);--cta-light: var(--color-accent-light);--cta-text: #ffffff;--text: var(--slate-200);--text-muted: var(--slate-400);--tag-bg: rgba(0, 149, 168, .25);--tag-text: var(--color-accent-light);--text-light: var(--slate-500);--header: var(--slate-100);--text-menu: var(--slate-200);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4), 0 2px 4px -2px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .4), 0 4px 6px -4px rgba(0, 0, 0, .3);--shadow-card: 0 1px 3px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, 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0}h2{font-size:var(--step-3);margin:0 0 var(--space-2) 0}h3{font-size:var(--step-2);font-weight:500}h4{font-size:var(--step-1);font-weight:500}p{margin:0 0 var(--space-2) 0;color:var(--text)}a{color:var(--link);font-weight:500;text-decoration:none;transition:color var(--transition-fast);position:relative}a:hover{color:var(--link-hover)}ul,ol{margin:0 0 var(--space-2) 0;padding-left:var(--space-3)}li{margin-bottom:var(--space-1)}.highlight{background:linear-gradient(135deg,var(--color-accent-dark),var(--color-accent));color:var(--cta-text);border-radius:var(--border-radius);padding:var(--space-1) var(--space-1)}::selection{background:var(--color-accent-light);color:var(--slate-950)}:focus-visible{outline:3px solid var(--highlight);outline-offset:2px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[role=button]:focus-visible{outline:3px solid var(--highlight);outline-offset:2px;box-shadow:0 0 0 6px var(--color-accent-subtle)}.skip-link:focus{position:fixed;top:var(--space-1);left:var(--space-1);z-index:9999;padding:var(--space-2) var(--space-4);background:var(--color-dark);color:#fff;border-radius:var(--border-radius);font-weight:600}.form-error{color:var(--color-error);font-size:var(--step--1);margin-top:var(--space-1)}input[aria-invalid=true],select[aria-invalid=true],textarea[aria-invalid=true]{border-color:var(--color-error);box-shadow:0 0 0 3px var(--color-error-subtle)}.sr-announcement{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--slate-200)}::-webkit-scrollbar-thumb{background:var(--slate-400);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--slate-500)}html.dark body ::-webkit-scrollbar-track,body.dark ::-webkit-scrollbar-track{background:var(--slate-800)}html.dark body ::-webkit-scrollbar-thumb,body.dark ::-webkit-scrollbar-thumb{background:var(--slate-600)}html.dark body ::-webkit-scrollbar-thumb:hover,body.dark ::-webkit-scrollbar-thumb:hover{background:var(--slate-500)}.text-muted{color:var(--text-muted)}.text-center{text-align:center}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInFromLeft{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.topo-pattern{background-image:url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M50 10c22 0 40 18 40 40s-18 40-40 40S10 72 10 50 28 10 50 10zm0 5c-19.3 0-35 15.7-35 35s15.7 35 35 35 35-15.7 35-35-15.7-35-35-35zm0 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1rem}}@media(prefers-reduced-motion:reduce){:root{--card-hover-translate: 0px}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}