:root,[data-theme=dark]{--bg-primary: #111;--bg-secondary: #1a1a1a;--text-primary: #d4d4d4;--text-secondary: #888;--text-muted: #666;--accent: #d4d4d4;--accent-hover: #fff;--border: #333}[data-theme=light]{--bg-primary: #fafafa;--bg-secondary: #f0f0f0;--text-primary: #1a1a1a;--text-secondary: #555;--text-muted: #999;--accent: #1a1a1a;--accent-hover: #000;--border: #ddd}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.7;min-height:100vh;font-size:17px}a{color:var(--accent);text-decoration:underline;text-decoration-color:var(--text-muted);text-underline-offset:2px;transition:all .15s ease}a:hover{color:var(--accent-hover);text-decoration-color:var(--accent-hover)}.app{max-width:600px;margin:0 auto;padding:0 1.5rem}.theme-toggle{position:fixed;top:1rem;right:1rem;display:flex;align-items:center;gap:.4rem;z-index:100}.theme-toggle__icon{font-size:.75rem;color:var(--text-muted);-webkit-user-select:none;user-select:none}.theme-toggle__switch{position:relative;display:inline-block;width:36px;height:20px}.theme-toggle__switch input{opacity:0;width:0;height:0}.theme-toggle__slider{position:absolute;top:0;right:0;bottom:0;left:0;background-color:var(--border);border-radius:20px;cursor:pointer;transition:background-color .2s ease}.theme-toggle__slider:before{content:"";position:absolute;height:14px;width:14px;left:3px;top:3px;background-color:var(--text-muted);border-radius:50%;transition:transform .2s ease,background-color .2s ease}.theme-toggle__switch input:checked+.theme-toggle__slider:before{transform:translate(16px);background-color:var(--text-primary)}.profile{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:3.5rem 0 1.75rem;text-align:center}.profile__avatar{width:72px;height:72px;border-radius:50%;filter:grayscale(100%)}.profile__name{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-top:.375rem}.profile__bio{font-size:.875rem;font-style:italic;color:var(--text-secondary)}.feed{display:flex;flex-direction:column;padding-bottom:3rem}.post{padding:1.375rem 0;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:.625rem}.post__when{font-size:.8125rem;color:var(--text-secondary);text-decoration:none;align-self:flex-start}.post__when:hover{color:var(--text-primary);text-decoration:underline}.post__image{width:100%;border-radius:4px;filter:grayscale(100%);display:block}.post__display{margin:0;font-size:1.25rem;line-height:1.4;letter-spacing:-.01em;color:var(--text-primary);text-wrap:pretty}.post__paragraphs{display:flex;flex-direction:column;gap:.75rem}.post__paragraphs p{margin:0;font-size:1rem;line-height:1.65;color:var(--text-primary);text-wrap:pretty}.post__continue{font-size:.875rem;color:var(--text-secondary);text-decoration:none}.post__continue:hover{color:var(--text-primary);text-decoration:underline}.feed__footer{padding:1.75rem 0;text-align:center;font-size:.8125rem;color:var(--text-muted);border-top:1px solid var(--border)}.feed__empty{padding:6rem 0;display:flex;flex-direction:column;align-items:center;gap:.5rem;text-align:center;border-top:1px solid var(--border)}.feed__empty-title{font-size:1.0625rem;color:var(--text-secondary)}.feed__empty-sub{font-size:.875rem;font-style:italic;color:var(--text-muted)}.skeleton{padding:1.375rem 0;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:.75rem}.skeleton__when{width:28px;height:10px;border-radius:5px;background:var(--bg-secondary)}.skeleton__lines{display:flex;flex-direction:column;gap:.625rem}.skeleton__line{height:12px;border-radius:6px;background:var(--bg-secondary)}.skeleton__when,.skeleton__line{animation:skeleton-pulse 1.4s ease-in-out infinite}@keyframes skeleton-pulse{0%,to{opacity:.6}50%{opacity:1}}.permalink{padding-bottom:3rem}.permalink__back{display:inline-block;margin:1.5rem 0;font-size:.875rem;color:var(--text-secondary);text-decoration:none}.permalink__back:hover{color:var(--text-primary)}.permalink__author{display:flex;align-items:center;gap:.75rem;padding:1.5rem 0;border-bottom:1px solid var(--border)}.permalink__avatar{width:36px;height:36px;border-radius:50%;filter:grayscale(100%)}.permalink__name{font-size:.9375rem;font-weight:600;color:var(--text-primary)}.permalink__bio{font-size:.8125rem;font-style:italic;color:var(--text-secondary)}.permalink__paragraphs{display:flex;flex-direction:column;gap:1.125rem;padding:1.75rem 0}.permalink__paragraphs p{margin:0;font-size:1.0625rem;line-height:1.7;color:var(--text-primary);text-wrap:pretty}.permalink__footer{display:flex;justify-content:space-between;padding-top:1.125rem;border-top:1px solid var(--border);font-size:.8125rem;color:var(--text-secondary)}@media (max-width: 600px){.profile{gap:.375rem}.profile__avatar{width:56px;height:56px}}@media (min-width: 900px){.post{position:relative}.post__when{position:absolute;left:-108px;top:30px;width:84px;text-align:right}}