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var(--transition);min-height:44px}.subscribe-input::placeholder{color:var(--text-faint)}.subscribe-input:focus{border-color:var(--border-hover)}.subscribe-input:focus-visible{outline:2px solid var(--text-muted);outline-offset:-2px}.subscribe-btn{padding:10px 20px;font-family:var(--font-body);font-size:14px;font-weight:500;background:var(--text-strong);color:var(--bg);border:none;border-radius:6px;cursor:pointer;transition:opacity var(--transition);min-height:44px}.subscribe-btn:hover{opacity:.85}.subscribe-btn:focus-visible{outline:2px solid var(--text-muted);outline-offset:2px}@media(max-width:480px){.subscribe-form{flex-direction:column}}footer{padding:32px;max-width:var(--wide-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.footer-copy{font-size:12px;color:var(--text-faint)}.footer-links{display:flex;gap:16px}.footer-links a{font-size:12px;color:var(--text-muted);transition:color var(--transition)}.footer-links a:hover{color:var(--text-strong)}.back-to-top{position:fixed;bottom:28px;right:28px;width:36px;height:36px;border-radius:8px;background:var(--surface);border:1px solid var(--border);color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;opacity:0;pointer-events:none;transition:all var(--transition);z-index:80}.back-to-top.visible{opacity:1;pointer-events:auto}.back-to-top:hover{color:var(--text-strong);border-color:var(--border-hover)}.back-to-top:focus-visible{opacity:1;pointer-events:auto;outline:2px solid var(--text-muted);outline-offset:2px}.tag-page{max-width:var(--content-width);margin:40px auto;padding:48px 48px 80px;background:var(--bg-elevated);border-radius:4px}@media(max-width:700px){.tag-page{padding:32px 24px 48px;margin:24px auto}}.tag-page h1{font-family:var(--font-heading);font-size:28px;font-weight:700;color:var(--text-strong);margin-bottom:8px;letter-spacing:-.025em}.tag-page-back{font-family:var(--font-mono);font-size:11px;color:var(--text-muted);text-decoration:none;display:inline-block;margin-bottom:16px;transition:color var(--transition);text-transform:uppercase;letter-spacing:.08em}.tag-page-back:hover{color:var(--text-strong)}.tag-page-count{font-family:var(--font-mono);font-size:13px;color:var(--text-muted);margin-bottom:32px}.post-item-tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:6px}.post-item-tag{font-family:var(--font-mono);font-size:10px;color:var(--text-faint);background:var(--bg-elevated);border-radius:2px;padding:1px 6px}.not-found{max-width:var(--content-width);margin:0 auto;padding:120px 24px;text-align:center}.not-found h1{font-family:var(--font-heading);font-size:48px;font-weight:600;color:var(--text-strong);margin-bottom:16px}.not-found p{font-size:16px;color:var(--text-muted);margin-bottom:32px}.not-found a{color:var(--text-strong);text-decoration:underline;text-underline-offset:3px}.video-embed{position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:8px;margin-bottom:26px;background:var(--surface)}.video-embed iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:none}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}