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button:hover{opacity:1}.chatbot-messages{flex-grow:1;overflow-y:auto;padding:15px;background-color:var(--color-background);display:flex;flex-direction:column;gap:10px}.chatbot-welcome{text-align:center;padding:20px 10px;color:var(--color-text-sub);font-style:normal;line-height:1.6;border:1px dashed var(--color-border);border-radius:12px;background:color-mix(in srgb,var(--color-secondary) 65%,transparent)}.chatbot-welcome-title{color:var(--color-text-main);font-weight:600;margin-bottom:10px}.chatbot-welcome-body{font-size:.95rem}.chatbot-welcome-badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.8rem;font-weight:700;background:color-mix(in srgb,var(--color-accent) 20%,transparent);color:var(--color-text-main);border:1px solid var(--color-border)}.chatbot-welcome-badge.ghost{background:color-mix(in srgb,var(--color-secondary) 85%,transparent);color:var(--color-text-sub)}.message-bubble{padding:10px 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.theme-toggle-btn,.header-left-group button{background:none!important;border:none!important;box-shadow:none!important;padding:5px!important;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;color:var(--color-text-main)}.header-left-group .global-theme-toggle svg{width:1.25rem;height:1.25rem}.auth-links,.auth-user-info,.header-auth-nav{display:flex;align-items:center}.auth-links,.auth-user-info{gap:8px}.user-nickname-display{font-size:.85rem;color:var(--color-text-sub)}.sidebar-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.4);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:1000;visibility:hidden;opacity:0;transition:all .3s ease}.sidebar-overlay.open{visibility:visible;opacity:1}.sidebar-menu{position:fixed;top:0;left:0;width:280px;height:100vh;background-color:var(--color-primary);z-index:1001;padding:20px;box-shadow:5px 0 15px var(--color-shadow-strong);transform:translateX(-100%);transition:transform .3s 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 Neo","Inter",sans-serif;--font-family-cursive:var(--font-caveat),cursive;--color-background:#fcfcfc;--color-primary:#fff;--color-secondary:#f0f0f0;--color-text-main:#212121;--color-text-sub:#757575;--color-accent:#546e7a;--color-link:#37474f;--color-logo:#333;--color-border:rgba(0,0,0,.1);--color-shadow:rgba(0,0,0,.05);--color-shadow-strong:rgba(0,0,0,.15);--color-success:#2e7d32;--color-error:#c62828}body.dark-mode{--color-background:#121212;--color-primary:#1e1e1e;--color-secondary:#2c2c2c;--color-text-main:#e0e0e0;--color-text-sub:#9e9e9e;--color-accent:#b0bec5;--color-link:#cfd8dc;--color-logo:#e0e0e0;--color-border:hsla(0,0%,100%,.1);--color-shadow:rgba(0,0,0,.3);--color-shadow-strong:rgba(0,0,0,.6);--color-success:#66bb6a;--color-error:#ef5350}html{box-sizing:border-box}*,:after,:before{box-sizing:inherit;transition:background-color .3s,color .3s,border-color .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)}.cursive-title{font-family:var(--font-family-cursive)!important;font-size:1.6rem!important;font-weight:400!important;margin-bottom:15px!important}.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}.main-content-container:has(.auth-page){display:flex;align-items:center;justify-content:center}.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 6px;font-family:monospace;font-size:.9em}.post-form-input,.post-form-textarea{width:100%;padding:15px;border:1px solid var(--color-border);border-radius:8px;font-size:1.1em;background-color:var(--color-secondary);color:var(--color-text-main);transition:border-color .2s,box-shadow .2s}.post-form-input:focus,.post-form-textarea:focus{border-color:var(--color-accent);box-shadow:0 0 0 2px var(--color-accent);outline:none}