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.message-text{background:var(--text);color:var(--bg)}.reliability{color:var(--text-secondary);align-items:center;gap:6px;margin-top:8px;font-size:12px;display:flex}.reliability-dot{border-radius:50%;width:10px;height:10px}.reliability-green{background:var(--green)}.reliability-yellow{background:var(--yellow)}.reliability-gray{background:var(--gray)}.reliability-white{border:1px solid var(--border);background:#fff}.citations{color:var(--text-secondary);border-left:2px solid var(--border);margin-top:8px;padding-left:16px;font-size:12px}.related-articles{flex-direction:column;gap:8px;margin-top:12px;display:flex}.related-article-card{border:1px solid var(--border);color:inherit;border-radius:6px;flex-direction:column;gap:4px;padding:12px 14px;text-decoration:none;transition:border-color .15s,background .15s;display:flex}.related-article-card:hover{border-color:var(--text);background:var(--card-hover,#00000008);text-decoration:none}.related-article-title{color:var(--text);font-size:14px;font-weight:600}.related-article-summary{color:var(--text-secondary);font-size:13px}.chat-input{gap:8px;margin-top:24px;display:flex}.chat-input input{border:1px solid var(--border);border-radius:4px;flex:1;padding:14px;font-family:inherit;font-size:15px}.chat-input button{background:var(--text);color:var(--bg);cursor:pointer;border:none;border-radius:4px;padding:14px 24px;font-family:inherit;font-size:14px}.chat-quota{text-align:center;color:var(--text-secondary);margin-top:16px;font-size:12px}.chat-quota--exhausted{color:#c0392b}.note{color:var(--text-secondary);background:var(--bg);border-radius:4px;margin-top:24px;padding:16px;font-size:12px}footer{border-top:1px solid var(--border);text-align:center;color:var(--text-secondary);margin-top:64px;padding:32px 0;font-size:12px}.tag{border:1px solid var(--border);color:var(--text-secondary);border-radius:12px;margin-right:6px;padding:2px 8px;font-size:11px;display:inline-block}.chat-fab{display:none}@media (max-width:640px){.container{padding-left:max(16px, env(safe-area-inset-left));padding-right:max(16px, env(safe-area-inset-right))}header{padding:20px 0}header .container{flex-direction:column;align-items:stretch;gap:0}.logo{flex-direction:row;align-items:baseline;gap:8px;width:100%;font-size:clamp(18px,5vw,22px);line-height:1.3}.logo .subtitle{white-space:nowrap;font-size:clamp(11px,3.5vw,14px)}.bio-break{display:block}.hero--thinker .hero-bio-title,.hero--thinker .hero-bio,header nav{display:none}.hero{min-height:280px;padding:40px 0 0}.hero--portal{min-height:0;padding-bottom:0}.hero--chat{min-height:0;padding-top:24px}.section-plain{padding-top:32px}.hero-sub{padding-bottom:0}.hero .hero-label,.hero .portrait{margin-bottom:20px}.hero h1{font-size:clamp(22px,7vw,28px)}.hero-actions{flex-direction:column;align-items:stretch;width:100%;max-width:none}.hero-actions .btn{max-width:none}.portrait{width:120px;height:120px}.breadcrumb{padding:12px 0 6px;font-size:12px}.breadcrumb ol{gap:2px}.breadcrumb li:not(:last-child):after{margin-left:6px}.section{padding:32px 0}.section-title{margin-bottom:16px}article>h1{margin-bottom:18px;font-size:clamp(22px,7vw,30px)}h2{margin:40px 0 16px;padding-top:24px;font-size:clamp(19px,5.5vw,24px)}h3{margin:28px 0 12px;font-size:17px}.article-body{font-size:15px;line-height:1.95}.article-body p{margin-bottom:18px}.article-lead-text{white-space:normal;font-size:15px;line-height:1.95}.hero-bio{font-size:15px}.toc{margin-bottom:28px;padding:16px 18px}.toc li{margin-bottom:8px;font-size:14px}.toc li.toc-sub{padding-left:16px}.article-body ul,.article-body ol{margin-bottom:16px;padding:12px 16px}.article-body ul{padding-left:16px}.article-body ol{padding-left:36px}.article-body li{margin-bottom:6px}.article-body ul>li{padding-left:18px}.article-body table{-webkit-overflow-scrolling:touch;width:100%;display:block;overflow-x:auto}.article-body blockquote{margin:24px 0;padding:18px 18px 18px 22px}.article-body blockquote:before{font-size:48px}.article-link{gap:12px;padding:18px 0}.article-link-title{font-size:17px}.card{padding:20px}.card-featured{padding:22px}.learning-step-card,.worry-card{padding:16px}.book-card{padding:16px 0}.book-card-title{font-size:15px}.book-link{padding:0 12px;font-size:12px}.chat-container{min-height:32vh;padding:18px}.message{gap:8px;margin-bottom:18px}.message-avatar{width:32px;height:32px}.message-body{max-width:88%}.message-text{padding:12px 14px;font-size:15px}.chat-input{gap:6px}.chat-input input{min-width:0;padding:12px;font-size:16px}.chat-input button{white-space:nowrap;flex-shrink:0;padding:12px 16px}.related-card p{font-size:13px}footer{margin-top:40px;padding:28px 0}.chat-fab{right:max(16px, env(safe-area-inset-right));bottom:max(20px, env(safe-area-inset-bottom));z-index:50;background:var(--surface);border:1px solid var(--accent-light);color:var(--text);letter-spacing:.02em;border-radius:999px;align-items:center;gap:10px;padding:7px 18px 7px 7px;font-size:14px;font-weight:600;text-decoration:none;transition:transform .15s,box-shadow .15s,border-color .15s;display:inline-flex;position:fixed;box-shadow:0 6px 20px #0000002e}.chat-fab:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-2px);box-shadow:0 8px 24px #0000003d}.chat-fab:active{transform:scale(.96)}.chat-fab-portrait{background:var(--border);border-radius:50%;flex-shrink:0;width:40px;height:40px;position:relative;overflow:hidden}.chat-fab-portrait img{border-radius:50%}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}