:root{--bg: #07080a;--surface: #0f1117;--surface2: #161b24;--border: #1f2937;--border2: #2d3748;--text: #f0f2f5;--muted: #6b7280;--muted2: #9ca3af;--accent: #22c55e;--accent-dim: #14532d;--accent-glow: rgba(34, 197, 94, .1);--amber: #f59e0b;--amber-dim: #451a03;--amber-glow: rgba(245, 158, 11, .1);--code-bg: #1a1f2e}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:DM Sans,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.7}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}@keyframes pulse{0%,to{box-shadow:0 0 0 0 var(--accent-glow)}50%{box-shadow:0 0 0 8px transparent}}nav{display:flex;align-items:center;justify-content:space-between;padding:18px 40px;border-bottom:1px solid var(--border);background:#07080af2;backdrop-filter:blur(12px);position:sticky;top:0;z-index:100}.logo{font-family:"DM Serif Display",serif;font-size:22px;color:var(--text);display:flex;align-items:center;gap:10px;text-decoration:none}.logo:hover{text-decoration:none}.logo-dot{width:8px;height:8px;background:var(--accent);border-radius:50%;animation:pulse 2s ease-in-out infinite;flex-shrink:0}.nav-links{display:flex;align-items:center;gap:24px}.nav-links a{color:var(--muted);font-size:14px;font-weight:500;transition:color .15s}.nav-links a:hover{color:var(--text);text-decoration:none}.nav-diary{color:var(--amber)!important}.nav-diary:hover{opacity:.8}footer{border-top:1px solid var(--border);padding:40px 24px;text-align:center;color:var(--muted);font-size:13px;margin-top:80px}footer a{color:var(--muted);text-decoration:none}footer a:hover{color:var(--text)}.post-wrap{max-width:720px;margin:0 auto;padding:64px 24px 80px}.post-meta{display:flex;align-items:center;gap:16px;margin-bottom:32px}.post-tag{font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);background:var(--accent-glow);border:1px solid var(--accent-dim);padding:3px 10px;border-radius:4px}.post-date{font-size:13px;color:var(--muted)}.post-title{font-family:"DM Serif Display",serif;font-size:clamp(30px,5vw,52px);line-height:1.15;margin-bottom:20px;letter-spacing:-.01em}.post-title em{font-style:italic;color:var(--accent)}.post-lede{font-size:19px;color:var(--muted2);line-height:1.6;margin-bottom:48px;padding-bottom:40px;border-bottom:1px solid var(--border)}.post-body{font-size:16px;line-height:1.8;color:var(--muted2)}.post-body p{margin-bottom:20px}.post-body p:first-of-type{color:var(--text);font-size:17px}.post-body h2{font-family:"DM Serif Display",serif;font-size:clamp(22px,3vw,32px);color:var(--text);margin:52px 0 16px;line-height:1.2}.post-body h3{font-size:17px;font-weight:700;color:var(--text);margin:36px 0 12px}.post-body a{color:var(--accent)}.post-body ul,.post-body ol{margin:0 0 24px 24px;color:var(--muted2)}.post-body li{margin-bottom:10px;font-size:16px}.post-body strong{color:var(--text)}.post-body em{font-style:italic}.post-body code{font-family:ui-monospace,Cascadia Code,monospace;font-size:13px;background:var(--code-bg);border:1px solid var(--border);padding:2px 6px;border-radius:4px;color:#e2e8f0}.post-body pre{background:var(--code-bg);border:1px solid var(--border);border-radius:6px;padding:20px;overflow-x:auto;margin:0 0 24px}.post-body pre code{background:none;border:none;padding:0;font-size:13px}.callout{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:0 6px 6px 0;padding:18px 20px;margin:24px 0}.callout p{margin:0;color:var(--muted2)}.math-block{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:24px;margin:28px 0;font-family:ui-monospace,Cascadia Code,monospace;font-size:14px;line-height:2}.math-block .comment{color:var(--muted);font-size:13px}.math-block .highlight{color:#22c55e}.math-block .danger{color:#ef4444}.table-wrap{overflow-x:auto;margin:28px 0}table{width:100%;border-collapse:collapse;font-size:14px}th{text-align:left;padding:10px 14px;border-bottom:2px solid var(--border);color:var(--muted);font-size:11px;letter-spacing:.08em;text-transform:uppercase}td{padding:11px 14px;border-bottom:1px solid var(--border);color:var(--muted2)}.subscribe-box{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:32px;margin:48px 0}.subscribe-box h3{font-size:18px;margin-bottom:8px;color:var(--text)}.subscribe-box p{color:var(--muted);font-size:14px;margin-bottom:16px}.subscribe-row{display:flex;gap:8px;flex-wrap:wrap}.subscribe-row input{flex:1;min-width:200px;padding:10px 14px;border:1px solid var(--border);border-radius:4px;font-size:14px;background:var(--surface2);color:var(--text)}.subscribe-row button{background:var(--accent);color:#000;padding:10px 20px;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap}.subscribe-msg{margin:8px 0 0;font-size:13px}.tip-jar{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:14px 16px;text-align:center;font-size:13px;color:var(--muted);margin-bottom:48px}.tip-jar strong{color:var(--text)}.tip-jar code{font-size:11px;background:var(--surface2);padding:2px 6px;border-radius:3px;word-break:break-all;color:var(--muted2)}.related-section{border-top:1px solid var(--border);padding-top:40px;margin-top:60px}.related-section h2{font-family:"DM Serif Display",serif;font-size:22px;margin-bottom:20px;color:var(--text)}.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1px;background:var(--border);border-radius:8px;overflow:hidden}.related-card{background:var(--surface);padding:20px;display:block;transition:background .15s}.related-card:hover{background:var(--surface2);text-decoration:none}.related-card .post-tag{margin-bottom:8px;display:inline-block}.related-card h3{font-size:14px;font-weight:600;color:var(--text);line-height:1.4;transition:color .15s}.related-card:hover h3{color:var(--accent)}@media(max-width:640px){nav{padding:14px 20px}.nav-links{gap:16px}.post-wrap{padding:40px 16px 60px}}