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cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}.sidebar-menu.open{transform:translateX(0)}.sidebar-close-btn{background:none;border:none;font-size:2rem;color:var(--color-text-main);cursor:pointer}@media (max-width:480px){.logo-text-header{font-size:1.5rem}}:root{--font-family-main:"Spoqa Han Sans 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.3s}body{margin:0;padding:0;font-family:var(--font-family-main);background-color:var(--color-background);color:var(--color-text-main);line-height:1.6}a{color:var(--color-link);text-decoration:none}a:hover{color:var(--color-accent)}.App{display:flex;flex-direction:column;min-height:100vh}.main-content-container{flex-grow:1;max-width:1200px;width:100%;margin:0 auto;padding:20px}.btn-link-primary,.btn-primary,.btn-secondary{cursor:pointer;padding:12px 20px;border-radius:8px;font-weight:600;text-align:center;transition:all .2s ease-in-out;border:none}.btn-primary{background-color:var(--color-accent);color:#fff}.btn-primary:hover{background-color:#455a64;box-shadow:0 4px 10px var(--color-shadow-strong)}.btn-secondary{background-color:var(--color-secondary);color:var(--color-text-main);border:1px solid var(--color-border)}.btn-secondary:hover{background-color:var(--color-border)}.btn-primary-small,.btn-secondary-small{padding:8px 15px;border-radius:6px;font-size:.9em;font-weight:500;cursor:pointer;transition:all .2s ease-in-out;border:none}.btn-primary-small{background-color:var(--color-accent);color:#fff}.btn-primary-small:hover{background-color:#455a64}.btn-secondary-small{background-color:var(--color-secondary);color:var(--color-text-main);border:1px solid var(--color-border)}.btn-secondary-small:hover{background-color:var(--color-border)}.tag-badge{padding:6px 12px;margin-right:8px;margin-bottom:8px;background-color:var(--color-secondary);border:1px solid var(--color-border);border-radius:20px;font-size:.9em;font-weight:500}.category-link,.tag-badge{display:inline-block;color:var(--color-text-main);transition:all .3s}.category-link{padding:10px 20px;background-color:var(--color-primary);border:1px solid var(--color-border);border-radius:10px;font-weight:600}.category-link:hover{border-color:var(--color-accent);box-shadow:0 4px 12px var(--color-shadow);text-decoration:none;transform:translateY(-2px)}.markdown-body{line-height:1.8;color:var(--color-text-main)}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{color:var(--color-text-main);margin-top:40px;margin-bottom:20px;font-weight:700}.markdown-body h1{font-size:2.2em;border-bottom:2px solid var(--color-border);padding-bottom:8px}.markdown-body h2{font-size:1.8em;border-bottom:1px dashed var(--color-border);padding-bottom:6px}.markdown-body h3{font-size:1.5em}.markdown-body p{margin-bottom:1em}.markdown-body a{color:var(--color-accent);text-decoration:underline}.markdown-blockquote{margin:20px 0;padding:15px 20px;border-left:5px solid var(--color-accent);color:var(--color-text-main);font-style:italic}.markdown-blockquote,.markdown-inline-code{background-color:var(--color-secondary);border-radius:4px}.markdown-inline-code{color:var(--color-accent);padding:3px 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