:root{
  --bg:#0b0f14; --panel:#111822; --panel2:#0e141d; --border:#1e2936;
  --text:#d7e0ea; --muted:#8b98a8; --accent:#3fd0c9; --accent2:#e8b339;
  --mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.65;
  background-image:radial-gradient(ellipse 80% 50% at 50% -10%,rgba(63,208,201,.07),transparent)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.accent{color:var(--accent)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,15,20,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px;flex-wrap:wrap}
.brand{font-family:var(--mono);font-weight:700;font-size:1.05rem;letter-spacing:.06em;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-mark{color:var(--accent);margin-right:6px;animation:blink 1.4s steps(1) infinite}
@keyframes blink{50%{opacity:.15}}
.brand-accent{color:var(--accent)}
.site-nav{display:flex;gap:4px;flex-wrap:wrap}
.site-nav a{font-family:var(--mono);font-size:.78rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);padding:6px 10px;border-radius:6px}
.site-nav a:hover{color:var(--accent);background:var(--panel);text-decoration:none}
.nav-search{border:1px solid var(--border)}

/* hero */
.hero{padding:56px 0 28px}
.hero-small{padding:36px 0 8px}
.hero h1{font-family:var(--mono);font-size:clamp(1.6rem,4vw,2.6rem);line-height:1.2;margin:0 0 12px;letter-spacing:-.01em}
.hero p{color:var(--muted);max-width:680px;margin:.3em 0}
.cat-title{border-left:4px solid var(--chip,--accent);padding-left:14px}
.crumb{font-family:var(--mono);font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.section-title{font-family:var(--mono);font-size:.9rem;color:var(--accent);text-transform:uppercase;letter-spacing:.12em;margin:34px 0 18px}
.count-note{color:var(--muted);font-family:var(--mono);font-size:.8rem}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px;margin-bottom:36px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card-big{grid-column:1/-1;display:grid;grid-template-columns:1.2fr 1fr}
@media(max-width:760px){.card-big{display:flex;flex-direction:column}}
.card-img{display:block;aspect-ratio:1200/630;overflow:hidden;background:var(--panel2)}
.card-big .card-img{aspect-ratio:auto;min-height:100%}
.card-img img{width:100%;height:100%;object-fit:cover;display:block}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px}
.card-big .card-body{padding:26px;justify-content:center}
.card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-family:var(--mono);font-size:.75rem;color:var(--muted)}
.card-title{font-size:1.08rem;line-height:1.35;margin:0}
.card-big .card-title{font-size:1.5rem}
.card-title a{color:var(--text)}
.card-title a:hover{color:var(--accent);text-decoration:none}
.card-excerpt{color:var(--muted);font-size:.9rem;margin:0}

/* chips & tags */
.chip{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;
  color:var(--chip,var(--accent));border:1px solid var(--chip,var(--accent));border-radius:999px;padding:2px 10px;background:color-mix(in srgb,var(--chip,var(--accent)) 10%,transparent)}
.chip:hover{text-decoration:none;background:color-mix(in srgb,var(--chip,var(--accent)) 22%,transparent)}
.chip-mini{font-size:.62rem;padding:1px 8px}
.tag-pill{display:inline-block;font-family:var(--mono);font-size:.78rem;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:3px 12px;margin:0 6px 8px 0}
.tag-pill:hover{color:var(--accent);border-color:var(--accent);text-decoration:none}
.tag-pill span{color:var(--accent)}
.tag-cloud{margin:24px 0 48px}

/* category index */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;margin:24px 0 48px}
.cat-card{background:var(--panel);border:1px solid var(--border);border-left:4px solid var(--chip);border-radius:12px;padding:22px;color:var(--text);display:flex;flex-direction:column;gap:8px}
.cat-card:hover{border-color:var(--chip);text-decoration:none;transform:translateY(-2px)}
.cat-card h2{margin:0;font-size:1.15rem;font-family:var(--mono);color:var(--chip)}
.cat-card p{margin:0;color:var(--muted);font-size:.9rem}

/* article */
.article-head{padding:40px 0 20px;max-width:860px}
.article-head h1{font-size:clamp(1.5rem,3.4vw,2.3rem);line-height:1.25;margin:12px 0 0}
.rt{color:var(--muted)}
.article-hero{border:1px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:30px}
.article-hero img{width:100%;display:block;max-height:380px;object-fit:cover}
.article-body{max-width:860px;font-size:1.02rem}
.article-body h2{font-family:var(--mono);font-size:1.25rem;color:var(--accent);margin-top:2em;letter-spacing:.01em}
.article-body h3{font-size:1.08rem;margin-top:1.6em}
.article-body h4{font-size:1rem;color:var(--muted)}
.article-body hr{border:0;border-top:1px dashed var(--border);margin:2em 0}
.article-body blockquote{border-left:3px solid var(--accent2);margin:1.5em 0;padding:.4em 1.2em;background:var(--panel);border-radius:0 8px 8px 0;color:var(--muted)}
.article-body code{font-family:var(--mono);font-size:.88em;background:var(--panel);border:1px solid var(--border);border-radius:4px;padding:.1em .4em}
.article-body pre{background:var(--panel2);border:1px solid var(--border);border-radius:10px;padding:16px;overflow-x:auto}
.article-body pre code{background:none;border:0;padding:0}
.article-body figure{margin:1.5em 0;overflow-x:auto}
.article-body table{border-collapse:collapse;width:100%;font-size:.9rem}
.article-body th,.article-body td{border:1px solid var(--border);padding:8px 12px;text-align:left;vertical-align:top}
.article-body th{background:var(--panel);font-family:var(--mono);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--accent)}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.015)}
.article-body ul,.article-body ol{padding-left:1.4em}
.article-body li{margin:.35em 0}
.article-body a{text-decoration:underline;text-decoration-color:rgba(63,208,201,.4);text-underline-offset:3px}
.article-tags{max-width:860px;margin:34px 0 8px;padding-top:20px;border-top:1px solid var(--border)}
.page-body{margin-bottom:56px}

/* post nav */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:40px 0}
@media(max-width:640px){.post-nav{grid-template-columns:1fr}}
.pn{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:14px 18px;color:var(--text);font-size:.92rem;line-height:1.4}
.pn:hover{border-color:var(--accent);text-decoration:none}
.pn span{display:block;font-family:var(--mono);font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}
.pn-next{text-align:right}

/* pagination */
.pagination{display:flex;align-items:center;justify-content:center;gap:22px;margin:10px 0 56px;font-family:var(--mono);font-size:.85rem}
.pagination a{border:1px solid var(--border);border-radius:8px;padding:8px 16px}
.pagination a:hover{border-color:var(--accent);text-decoration:none}
.page-info{color:var(--muted)}

/* archive */
.year-head{font-family:var(--mono);color:var(--accent);margin:36px 0 14px;font-size:1.2rem}
.archive-list{list-style:none;padding:0;margin:0 0 10px}
.archive-list li{display:flex;align-items:baseline;gap:14px;padding:8px 0;border-bottom:1px solid var(--border);flex-wrap:wrap}
.archive-list time{font-family:var(--mono);font-size:.78rem;color:var(--muted);min-width:52px}
.archive-list a{color:var(--text);flex:1;min-width:220px}
.archive-list a:hover{color:var(--accent)}

/* search */
.search-box{width:100%;max-width:640px;background:var(--panel);border:1px solid var(--border);border-radius:10px;color:var(--text);
  font-family:var(--mono);font-size:1rem;padding:14px 18px;margin:18px 0 24px;outline:none}
.search-box:focus{border-color:var(--accent)}
.search-results{margin-bottom:56px}
.search-hit{display:block;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:14px 18px;margin-bottom:12px;color:var(--text)}
.search-hit:hover{border-color:var(--accent);text-decoration:none}
.search-hit strong{display:block;margin:2px 0}
.hit-meta{font-family:var(--mono);font-size:.72rem;color:var(--accent);text-transform:uppercase;letter-spacing:.05em}
.hit-x{color:var(--muted);font-size:.86rem}

/* footer */
.site-footer{border-top:1px solid var(--border);margin-top:40px;background:var(--panel2)}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;padding:34px 20px 10px;flex-wrap:wrap}
.brand-footer{font-family:var(--mono);font-weight:700;letter-spacing:.06em}
.footer-tag{color:var(--muted);font-size:.85rem;margin:6px 0 0}
.footer-nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-nav a{font-family:var(--mono);font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.footer-nav a:hover{color:var(--accent)}
.footer-legal{padding:12px 20px 30px;color:var(--muted);font-size:.78rem;border-top:1px dashed var(--border)}