/* Mason theme — V6 (sidebar TOC layout) + V9 (mono-zine typography), about.html tokens */
:root{
  --bg:#0c0d0f;--bg-soft:#101113;--card:#141517;--card-hover:#191a1d;
  --border:#212327;--border-bright:#2c2f34;--text:#e8e9ea;--text-soft:#b0b3b8;--muted:#777c84;
  /* single muted steel-blue accent; secondary hues neutralised to grays */
  --ghc-bg:#0a0b0d;--ghl0:#1a1e22;--ghl1:#2f5666;--ghl2:#427e94;--ghl3:#5ca6bf;--ghl4:#8fcbe0;
  --cyan:#8aa8b6;--cyan-dim:rgba(138,168,182,.10);--violet:#9a9ea6;--gold:#a9a396;--green:#93999a;
  --header-bg:rgba(12,13,15,.72);--grid-line:rgba(255,255,255,.015);--glow:rgba(255,255,255,.02);
  --shadow:rgba(0,0,0,.4);--quote:#aeb9c9;
  --font-sans:'Inter','Noto Sans TC',-apple-system,sans-serif;
  --font-mono:'JetBrains Mono','SF Mono',monospace;
  --transition:.25s cubic-bezier(.4,0,.2,1);
}

/* ===== light theme ===== */
:root[data-theme="light"]{
  /* creamy ivory — the feel of warm yellow-white light, not a cold sheet of paper */
  --bg:#faf5e9;--bg-soft:#f3ecda;--card:#fffdf6;--card-hover:#f8f2e3;
  --border:#e9e0ca;--border-bright:#d8ccae;--text:#221e15;--text-soft:#4b4536;--muted:#78715e;
  --cyan:#3f6b7c;--cyan-dim:rgba(63,107,124,.11);--violet:#635c4d;--gold:#7a6a45;--green:#5d6157;
  --header-bg:rgba(250,245,233,.85);--grid-line:rgba(120,90,30,.045);--glow:rgba(180,150,70,.05);
  --shadow:rgba(110,88,40,.15);--quote:#544d3d;
  --ghc-bg:#f3ecda;--ghl0:#e7dfc9;--ghl1:#c2cfc9;--ghl2:#94b3b6;--ghl3:#65919d;--ghl4:#3f6b7c;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:92px;scroll-snap-type:y proximity}
@media(prefers-reduced-motion:reduce){html{scroll-snap-type:none}}
body{background:var(--bg);color:var(--text-soft);font-family:var(--font-sans);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;min-height:100vh;overflow-x:hidden;scroll-padding-top:92px;scroll-snap-type:y proximity}
@media(prefers-reduced-motion:reduce){body{scroll-snap-type:none}}
a{color:var(--cyan);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--text)}
img{max-width:100%}
::selection{background:var(--cyan-dim);color:var(--text)}

/* background grid + glow (about.html) */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:80px 80px;-webkit-mask-image:radial-gradient(ellipse at center,#000 20%,transparent 78%);mask-image:radial-gradient(ellipse at center,#000 20%,transparent 78%)}
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background:radial-gradient(circle at 50% -10%,var(--glow),transparent 55%)}

.progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--cyan);z-index:200}
/* page-load intro animation */
/* CLI boot loader — reproduces the original about.html boot sequence */
#boot{position:fixed;inset:0;z-index:10000;background:#000;padding:48px 32px;font-family:var(--font-mono);font-size:13px;line-height:1.7;overflow:hidden;color:#34d399;transition:opacity .6s ease-out,visibility .6s}
#boot.done{opacity:0;visibility:hidden;pointer-events:none}
#boot pre{white-space:pre-wrap;color:inherit;margin:0}
#boot .ok{color:#34d399}
#boot .warn{color:#fbbf24}
#boot .label{color:#22d3ee}
#boot .dim{color:#475569}
#boot .cursor{display:inline-block;width:8px;height:14px;background:#34d399;vertical-align:-2px;animation:bootblink 1s steps(2) infinite}
@keyframes bootblink{50%{opacity:0}}
@media(max-width:600px){#boot{padding:32px 18px;font-size:12px}}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
/* subtle column stagger so grid items cascade in as they scroll into view */
.acard-grid .reveal:nth-child(3n+2),.proj-grid .reveal:nth-child(3n+2),.demo-grid .reveal:nth-child(3n+2){transition-delay:.07s}
.acard-grid .reveal:nth-child(3n),.proj-grid .reveal:nth-child(3n),.demo-grid .reveal:nth-child(3n){transition-delay:.14s}

/* hero landing + scroll cue */
.home-hero{min-height:calc(100vh - 96px);display:flex;flex-direction:column;justify-content:center;position:relative}
.scroll-cue{position:absolute;left:0;bottom:14px;display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.22em;color:var(--muted);text-decoration:none;animation:cuebob 1.9s ease-in-out infinite}
.scroll-cue:hover{color:var(--cyan)}
.scroll-cue .cue-ar{font-size:.85rem}
@keyframes cuebob{0%,100%{transform:translateY(0);opacity:.6}50%{transform:translateY(6px);opacity:1}}
@media(prefers-reduced-motion:reduce){.scroll-cue{animation:none}}
@media(max-width:640px){.home-hero{min-height:calc(100vh - 84px)}}

/* self-introduction narrative */
.home-intro .hb-head .hb-k{color:var(--green)}
.intro-lede{font-size:1.12rem;line-height:1.9;color:var(--text);margin:.2rem 0 1.8rem;max-width:60ch}
.intro-roles{display:flex;flex-direction:column;gap:1.15rem}
.intro-line{font-size:1rem;line-height:1.95;color:var(--quote);max-width:64ch;margin:0;padding-left:1.1rem;border-left:2px solid var(--border);transition:border-color .8s cubic-bezier(.22,1,.36,1),opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1)}
.intro-line.in{border-left-color:var(--cyan)}
.intro-roles .intro-line:nth-child(2).in{border-left-color:var(--violet)}
.intro-roles .intro-line:nth-child(3).in{border-left-color:var(--green)}
.intro-roles .intro-line:nth-child(4).in{border-left-color:var(--gold)}
.intro-roles .intro-line:nth-child(6).in{border-left-color:var(--violet)}
.intro-role{font-weight:700;padding:0 .12em}
.r-cyan{color:var(--cyan);text-shadow:0 0 18px rgba(34,211,238,.45)}
.r-violet{color:var(--violet);text-shadow:0 0 18px rgba(167,139,250,.45)}
.r-green{color:var(--green);text-shadow:0 0 18px rgba(52,211,153,.45)}
.r-gold{color:var(--gold);text-shadow:0 0 18px rgba(251,191,36,.45)}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--header-bg);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:var(--transition)}
.site-header.scrolled{border-bottom-color:var(--border)}
.nav{max-width:1120px;margin:0 auto;padding:16px 28px;display:flex;align-items:center;justify-content:space-between}
.brand{font-family:var(--font-mono);font-weight:700;font-size:15px;color:var(--text);display:flex;align-items:center;gap:8px}
.brand .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.nav-links{display:flex;align-items:center;gap:20px;font-family:var(--font-mono);font-size:13px}
.nav-links a{color:var(--muted)}.nav-links a:hover{color:var(--cyan)}

.wrap{max-width:1120px;margin:0 auto;padding:96px 28px 90px;position:relative;z-index:1}

/* ===== POST: V6 two-column (sidebar TOC) ===== */
.post-layout{display:grid;grid-template-columns:1fr;gap:44px}
@media(min-width:940px){.post-layout{grid-template-columns:210px 1fr}.post-aside{order:1}.post-main{order:2}}
.post-aside{align-self:start}
@media(min-width:940px){.post-aside{position:sticky;top:96px;max-height:calc(100vh - 120px);overflow:auto}}

.aside-label{font-family:var(--font-mono);font-size:11px;letter-spacing:1px;color:var(--muted);text-transform:uppercase}
/* Hexo toc() output */
.post-aside .toc{list-style:none;font-size:12.5px}
.post-aside .toc .toc-child{list-style:none;padding-left:14px}
.post-aside .toc-link{display:block;color:var(--muted);padding:5px 10px;border-radius:7px;transition:var(--transition)}
.post-aside .toc-link:hover{background:var(--card);color:var(--text-soft)}
.post-aside .toc-link.active{background:var(--cyan-dim);color:var(--cyan)}
.post-aside .toc-level-3 .toc-link{font-size:11.5px;opacity:.82}

.post-main{min-width:0;max-width:720px}

/* header block (V9 mono zine) */
.post-tagline{font-family:var(--font-mono);font-size:12px;color:var(--muted);margin-bottom:20px}
.post-tagline b{color:var(--cyan)}
.post-title{font-weight:800;font-size:clamp(25px,3.6vw,34px);color:var(--text);line-height:1.4;margin-bottom:12px}
.post-excerpt{font-size:15.5px;color:var(--muted);margin-bottom:16px;line-height:1.7}
.post-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-family:var(--font-mono);font-size:12.5px;color:var(--muted);padding-bottom:20px;border-bottom:1px dashed var(--border-bright);margin-bottom:10px}
.post-cats a,.post-tags a{color:var(--cyan)}

/* ===== content typography: V9 mono-zine ===== */
.post-content{font-size:16px}
.post-content h2{font-family:var(--font-mono);font-size:15px;color:var(--cyan);letter-spacing:1px;text-transform:uppercase;margin:42px 0 12px}
.post-content h2::before{content:'§ '}
.post-content h3{font-family:var(--font-mono);font-size:14px;color:var(--violet);margin:26px 0 8px}
.post-content h3::before{content:'> '}
.post-content p{margin:16px 0}
.post-content ul,.post-content ol{margin:14px 0 14px 2px;padding-left:22px}
.post-content li{margin:7px 0}
.post-content li::marker{color:var(--cyan)}
.post-content blockquote{border-left:2px solid var(--violet);padding:4px 18px;margin:20px 0;color:var(--text-soft);font-style:italic}
.post-content img{border:1px solid var(--border);border-radius:10px;display:block;margin:26px auto}
.post-content strong{color:var(--text)}
.post-content{overflow-wrap:break-word}
.post-content pre{background:var(--bg-soft);border:1px solid var(--border);border-left:2px solid var(--cyan);border-radius:8px;padding:16px 18px;overflow-x:auto;-webkit-overflow-scrolling:touch;margin:20px 0;font-family:var(--font-mono);font-size:13px;max-width:100%}
.post-content code{font-family:var(--font-mono);font-size:.9em}
.post-content :not(pre)>code{background:var(--card);border:1px solid var(--border);border-radius:5px;padding:1px 6px;color:var(--cyan);word-break:break-word;overflow-wrap:anywhere}
.post-content a{word-break:break-word}
/* code block: clean flat frame, inner scroll, copy button fixed in corner */
.post-content figure.highlight{position:relative;max-width:100%;margin:22px 0;background:#080b14;border:1px solid var(--border-bright);border-radius:12px;overflow:hidden}
.post-content figure.highlight table,.post-content figure.highlight tbody,.post-content figure.highlight tr,.post-content figure.highlight td{display:block;width:auto;max-width:none;margin:0;border:none;padding:0;background:none;border-collapse:collapse}
.post-content figure.highlight td.code{overflow-x:auto;-webkit-overflow-scrolling:touch}
.post-content figure.highlight .gutter{display:none}
.post-content figure.highlight pre{background:none;border:none;border-radius:0;margin:0;padding:18px 20px 20px;overflow:visible;max-width:none;min-width:max-content;line-height:1.7}
.post-content figure.highlight .line{white-space:pre}
.copy-btn{position:absolute;right:10px;bottom:10px;z-index:3;font-family:var(--font-mono);font-size:11.5px;line-height:1;padding:6px 12px;border-radius:8px;background:rgba(11,15,26,.92);border:1px solid var(--border-bright);color:var(--muted);cursor:pointer;opacity:0;transition:var(--transition);backdrop-filter:blur(4px)}
.post-content figure.highlight:hover .copy-btn,.copy-btn:focus{opacity:1}
.copy-btn:hover{color:var(--cyan);border-color:var(--cyan)}
.copy-btn.done{color:var(--green);border-color:var(--green);opacity:1}
@media(hover:none){.copy-btn{opacity:.85}}
/* syntax colors (Hexo highlighter classes) — neon palette */
.post-content figure.highlight .comment,.post-content figure.highlight .quote{color:var(--muted);font-style:italic}
.post-content figure.highlight .string,.post-content figure.highlight .regexp,.post-content figure.highlight .addition{color:var(--green)}
.post-content figure.highlight .keyword,.post-content figure.highlight .selector-tag,.post-content figure.highlight .built_in,.post-content figure.highlight .name,.post-content figure.highlight .literal{color:var(--violet)}
.post-content figure.highlight .number,.post-content figure.highlight .meta,.post-content figure.highlight .symbol,.post-content figure.highlight .bullet{color:var(--gold)}
.post-content figure.highlight .function .title,.post-content figure.highlight .title,.post-content figure.highlight .class .title,.post-content figure.highlight .attr,.post-content figure.highlight .attribute,.post-content figure.highlight .variable{color:var(--cyan)}
.post-content figure.highlight .params{color:var(--text-soft)}
.post-content figure.highlight .type,.post-content figure.highlight .tag{color:var(--cyan)}
.post-content figure.highlight .deletion{color:var(--red)}
/* markdown tables scroll on narrow screens (GitHub-style) */
.post-content table{display:block;width:max-content;max-width:100%;overflow:auto;-webkit-overflow-scrolling:touch;border-collapse:collapse;margin:18px 0;font-size:13.5px}
.post-content thead th{background:var(--card);color:var(--text)}
.post-content th,.post-content td{border:1px solid var(--border);padding:7px 12px;text-align:left;white-space:nowrap}

/* claps + comments */
.claps{display:flex;align-items:center;gap:14px;margin:40px 0 0}
.clap-btn{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--border-bright);color:var(--text);padding:11px 20px;border-radius:40px;cursor:pointer;font-family:var(--font-mono);font-size:13px;transition:var(--transition)}
.clap-btn:hover{border-color:var(--cyan);transform:translateY(-2px)}
.clap-btn.done{border-color:var(--violet);color:var(--violet)}
.comments{margin-top:44px;padding-top:28px;border-top:1px solid var(--border)}
.comments-label{font-family:var(--font-mono);color:var(--muted);font-size:12px;letter-spacing:1px;margin-bottom:16px}
.giscus-ph{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;color:var(--muted);font-size:13.5px;text-align:center}
.giscus-ph b{color:var(--text-soft)}

/* ===== post list (index / archive) ===== */
.list-head{margin-bottom:30px}
.list-head .k{font-family:var(--font-mono);color:var(--cyan);letter-spacing:2px;font-size:11px;text-transform:uppercase}
.list-head h1{font-size:clamp(26px,4vw,38px);color:var(--text);font-weight:900;margin-top:10px}
.post-list{display:grid;grid-template-columns:1fr;gap:14px}
.pcard{display:block;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:22px 24px;transition:var(--transition)}
.pcard:hover{border-color:var(--cyan);transform:translateY(-2px)}
.pcard .pdate{font-family:var(--font-mono);font-size:11.5px;color:var(--muted)}
.pcard .ptitle{font-size:20px;color:var(--text);font-weight:800;margin:6px 0 6px}
.pcard .pexcerpt{color:var(--text-soft);font-size:14px;line-height:1.7}
.pcard .pmeta{margin-top:12px;font-family:var(--font-mono);font-size:11.5px;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}
/* article cards with cover thumbnail */
.acard-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.acard{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:var(--transition)}
.acard:hover{border-color:var(--cyan);transform:translateY(-4px);box-shadow:0 14px 36px rgba(34,211,238,.09)}
.acard-thumb{aspect-ratio:16/9;background:var(--bg-soft) center center/cover no-repeat;border-bottom:1px solid var(--border)}
.acard-thumb.noimg{display:flex;align-items:center;justify-content:center;background:var(--bg-soft)}
.acard-thumb.noimg span{font-family:var(--font-mono);font-size:13px;color:var(--text-soft)}
.acard-body{padding:15px 17px 17px;display:flex;flex-direction:column;gap:8px;flex:1}
.acard-meta{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.acard-meta .acard-cat{color:var(--cyan)}
.acard-title{font-size:16.5px;font-weight:700;color:var(--text);line-height:1.42}
.acard:hover .acard-title{color:var(--cyan)}
.acard-excerpt{font-size:13px;color:var(--text-soft);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.acard-tags{margin-top:auto;font-family:var(--font-mono);font-size:11px;color:var(--violet);display:flex;gap:8px;flex-wrap:wrap}

/* pager */
.pager{display:flex;justify-content:center;gap:14px;margin-top:34px;font-family:var(--font-mono);font-size:13px}
.pager a,.pager span{color:var(--muted);border:1px solid var(--border);padding:6px 14px;border-radius:8px}
.pager a:hover{border-color:var(--cyan);color:var(--cyan)}

.totop{position:fixed;right:20px;bottom:20px;width:42px;height:42px;border-radius:11px;background:var(--card);border:1px solid var(--border-bright);color:var(--cyan);display:grid;place-items:center;cursor:pointer;opacity:0;pointer-events:none;transition:var(--transition);z-index:120;font-size:17px}
.totop.show{opacity:1;pointer-events:auto}

.site-footer{border-top:1px solid var(--border);margin-top:60px;padding:26px 28px;color:var(--muted);font-family:var(--font-mono);font-size:12px;position:relative;z-index:1}
.foot-inner{max-width:1120px;margin:0 auto;display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;justify-content:center;text-align:center}
.foot-brand{color:var(--text-soft)}
.foot-count{color:var(--cyan)}
.foot-motto{color:var(--muted);opacity:.8}

/* ===== responsive nav (hamburger) ===== */
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.hamburger span{width:22px;height:2px;background:var(--text-soft);transition:var(--transition)}
.navtoggle{position:absolute;opacity:0;pointer-events:none}
@media(max-width:720px){
  .nav{padding:14px 20px;flex-wrap:wrap}
  .hamburger{display:flex}
  .nav-links{flex-basis:100%;display:none;flex-direction:column;align-items:stretch;gap:2px;padding-top:12px}
  .navtoggle:checked ~ .nav-links{display:flex}
  .nav-links a{padding:9px 6px;border-bottom:1px solid var(--border)}
}

/* ===== buttons ===== */
.btn{display:inline-block;font-family:var(--font-mono);font-size:13px;padding:10px 20px;border-radius:24px;border:1px solid var(--border-bright);color:var(--text-soft);transition:var(--transition)}
.btn:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.btn.primary{background:var(--cyan-dim);border-color:var(--cyan);color:var(--cyan)}

/* ===== generic page head ===== */
.page-head{margin-bottom:26px}
.ph-k{font-family:var(--font-mono);font-size:12px;color:var(--cyan);letter-spacing:1px}
.page-head h1{font-size:clamp(26px,4vw,36px);color:var(--text);font-weight:900;margin-top:8px}
.ph-sub{color:var(--muted);margin-top:8px;font-size:14.5px}

/* ===== HOME ===== */
.home-hero{padding:30px 0 40px;border-bottom:1px solid var(--border);margin-bottom:36px}
.hero-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.hh-tag{font-family:var(--font-mono);font-size:13px;color:var(--muted)}
.lang-switch{display:inline-flex;border:1px solid var(--border-bright);border-radius:20px;overflow:hidden}
.lang-switch button{font-family:var(--font-mono);font-size:12.5px;padding:6px 13px;background:transparent;color:var(--muted);border:none;cursor:pointer;transition:var(--transition)}
.lang-switch button:hover{color:var(--text-soft)}
.lang-switch button.active{background:var(--cyan-dim);color:var(--cyan)}
/* hide Google Website Translator chrome */
#google_translate_element{position:absolute;left:-9999px;height:0;overflow:hidden}
.goog-te-banner-frame,.goog-te-banner-frame.skiptranslate,.skiptranslate iframe{display:none!important}
body{top:0!important;position:static!important}
#goog-gt-tt,.goog-te-balloon-frame,.goog-tooltip{display:none!important}
.goog-text-highlight{background:none!important;box-shadow:none!important}
font[style]{background:transparent!important;box-shadow:none!important}
.hh-title{font-weight:800;font-size:clamp(34px,7vw,60px);color:var(--text);line-height:1.1;margin-bottom:12px;letter-spacing:-.01em}
/* hero CLI typewriter line */
.hh-sub{font-family:var(--font-mono);color:var(--muted);font-size:15px;margin-bottom:16px;display:flex;align-items:center;gap:9px;min-height:1.7em}
.hh-prompt{color:var(--cyan);flex:none}
.hh-typed{color:var(--text-soft);white-space:nowrap}
.hh-cursor{display:inline-block;width:8px;height:1.05em;background:var(--cyan);margin-left:-5px;animation:hhblink 1.05s steps(2) infinite}
@keyframes hhblink{50%{opacity:0}}
@media(prefers-reduced-motion:reduce){.hh-cursor{animation:none}}
.hh-bio{color:var(--text-soft);font-size:16px;max-width:640px;line-height:1.85;margin-bottom:24px}
.hh-cta{display:flex;gap:12px;flex-wrap:wrap}
.home-block{margin:40px 0}
/* only Featured is a snap point; later sections scroll freely (just smooth, no locking) */
#featured{scroll-snap-align:start}
.hb-head{display:flex;align-items:baseline;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.hb-k{font-family:var(--font-mono);font-size:13px;color:var(--cyan)}
.hb-head h2{font-size:21px;color:var(--text);font-weight:800}
.hb-more{margin-left:auto;font-family:var(--font-mono);font-size:12.5px;color:var(--violet)}
.hb-note{margin-left:auto;font-family:var(--font-mono);font-size:12px;color:var(--muted)}
/* GitHub activity + stats block */
/* contribution trend line (self-rendered SVG) */
.gh-line{border:1px solid var(--border);border-radius:12px;background:var(--ghc-bg);padding:14px 16px 6px}
.gh-line svg{width:100%;height:auto;display:block;aspect-ratio:720/200}
.ghl-grid{stroke:var(--border-bright);stroke-width:1;stroke-dasharray:3 4}
.ghl-lab{fill:var(--muted);font-size:10px;font-family:var(--mono,monospace)}
.ghl-area{fill:url(#ghlFill)}
.ghl-s0{stop-color:var(--cyan);stop-opacity:.34}
.ghl-s1{stop-color:var(--cyan);stop-opacity:0}
.ghl-line{fill:none;stroke:var(--cyan);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.ghl-dot{fill:var(--cyan);stroke:var(--ghc-bg);stroke-width:1.5}
.ghl-cap{font-size:.78rem;color:var(--muted);text-align:right;padding:2px 2px 6px}
.ghl-cap b{color:var(--cyan)}
.gh-stats{display:grid;grid-template-columns:1fr;gap:14px;margin-top:14px}
@media(min-width:760px){.gh-stats{grid-template-columns:3fr 2fr}}
.gh-stats img{width:100%;height:auto;display:block;border-radius:12px;border:1px solid var(--border);background:var(--card);padding:12px}
/* live website previews (browser-window cards with screenshots) */
.demo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.demo-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:var(--transition)}
.demo-card:hover{border-color:var(--cyan);transform:translateY(-4px);box-shadow:0 16px 40px rgba(34,211,238,.1)}
.demo-bar{display:flex;align-items:center;gap:6px;padding:9px 12px;background:var(--bg-soft);border-bottom:1px solid var(--border)}
.demo-bar .dd{width:9px;height:9px;border-radius:50%}
.demo-bar .r{background:#ff5f56}.demo-bar .y{background:#ffbd2e}.demo-bar .g{background:#27c93f}
.demo-addr{margin-left:8px;font-family:var(--font-mono);font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.demo-shot{aspect-ratio:900/620;background:var(--bg-soft);overflow:hidden;position:relative}
.demo-shot img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block;transition:transform .4s}
.demo-card:hover .demo-shot img{transform:scale(1.04)}
.demo-cap{padding:13px 15px;display:flex;flex-direction:column;gap:3px}
.demo-name{font-size:15px;font-weight:700;color:var(--text)}
.demo-card:hover .demo-name{color:var(--cyan)}
.demo-desc{font-size:12.5px;color:var(--text-soft)}
/* floating tag cloud (scattered + gentle float, neon style) */
.tagcloud2{border:1px solid var(--border);border-radius:20px;padding:34px 26px 42px;background:rgba(15,20,34,.28)}
.tagcloud2-title{text-align:center;color:var(--text-soft);font-size:17px;margin-bottom:26px}
.tagcloud2-title b{color:var(--cyan);font-family:var(--font-mono)}
.tagcloud2-tags{display:flex;flex-wrap:wrap;gap:12px 14px;justify-content:center;align-items:center}
.tp{display:inline-block;padding:.5em 1.1em;border-radius:999px;white-space:nowrap;line-height:1;border:1px solid var(--border-bright);background:var(--card);color:var(--text-soft);transition:transform .25s,border-color .25s,box-shadow .25s,color .25s;animation-name:tpfloat;animation-timing-function:ease-in-out;animation-iteration-count:infinite;will-change:transform}
.tp:hover{transform:translateY(-5px) scale(1.07)!important;color:var(--text);border-color:var(--cyan);box-shadow:0 0 22px var(--cyan-dim);animation-play-state:paused}
.tp-cat{color:var(--text);border-color:var(--border-bright);background:var(--cyan-dim);font-weight:600}
.tp-tag{font-family:var(--font-mono)}
.tp-tag:hover{color:var(--violet);border-color:var(--violet);box-shadow:0 0 22px rgba(167,139,250,.16)}
@keyframes tpfloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@media(prefers-reduced-motion:reduce){.tp{animation:none}}

/* ===== PROJECTS ===== */
.proj-group{margin:34px 0}
.proj-dom{display:flex;align-items:center;gap:10px;font-size:19px;color:var(--text);font-weight:800;margin-bottom:16px}
.proj-dom .pd-dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.proj-dom .pd-count{font-family:var(--font-mono);font-size:12px;color:var(--muted);font-weight:400}
.proj-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.proj-card{display:flex;flex-direction:column;gap:8px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px 20px;transition:var(--transition)}
.proj-card:hover{border-color:var(--cyan);transform:translateY(-3px);box-shadow:0 12px 30px rgba(34,211,238,.08)}
.pc-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.pc-name{font-family:var(--font-mono);font-weight:700;color:var(--cyan);font-size:14px;word-break:break-all}
.pc-name:hover{color:var(--text);text-decoration:underline}
.pc-star{font-family:var(--font-mono);font-size:12px;color:var(--gold);flex:none}
.pc-desc{color:var(--text-soft);font-size:13.5px;line-height:1.65;flex:1}
.pc-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:4px;padding-top:10px;border-top:1px solid var(--border)}
.pc-lang{font-family:var(--font-mono);font-size:11.5px;color:var(--muted)}
.gh-btns{display:inline-flex;gap:6px;align-items:center;margin-left:auto}

/* ===== POSTS page ===== */
.posts-toggle{display:flex;gap:8px;margin-bottom:22px}
.posts-toggle button{font-family:var(--font-mono);font-size:13px;padding:8px 18px;border-radius:22px;border:1px solid var(--border-bright);background:transparent;color:var(--muted);cursor:pointer;transition:var(--transition)}
.posts-toggle button.active{background:var(--cyan-dim);border-color:var(--cyan);color:var(--cyan)}
.tl-year{font-family:var(--font-mono);font-size:22px;color:var(--violet);font-weight:700;margin:26px 0 10px;padding-bottom:6px;border-bottom:1px solid var(--border)}
.tl-item{display:flex;align-items:baseline;gap:16px;padding:12px 10px;border-radius:8px;transition:var(--transition)}
.tl-item:hover{background:var(--card)}
.tl-date{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);flex:none;min-width:74px}
.tl-title{color:var(--text);font-size:15.5px;flex:1}
.tl-item:hover .tl-title{color:var(--cyan)}
.tl-cat{font-family:var(--font-mono);font-size:11.5px;color:var(--violet);flex:none}
.cat-group{margin:24px 0}
.cat-title{display:flex;gap:10px;align-items:baseline;font-size:17px;color:var(--cyan);font-family:var(--font-mono);margin-bottom:6px}
.cat-title span{font-size:12px;color:var(--muted)}

/* ===== ABOUT ===== */
.about-intro{font-size:16.5px;color:var(--text-soft);line-height:1.9;max-width:720px;margin-bottom:12px;padding-bottom:26px;border-bottom:1px dashed var(--border-bright)}
.about-sec{font-family:var(--font-mono);font-size:15px;color:var(--cyan);text-transform:uppercase;letter-spacing:1px;margin:40px 0 16px}
.about-sec::before{content:'§ '}
.about-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.ab-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px}
.ab-no{font-family:var(--font-mono);color:var(--gold);font-size:13px;margin-bottom:6px}
.ab-ptext{color:var(--text-soft);font-size:13.5px;line-height:1.6}
.about-edu{color:var(--muted);font-family:var(--font-mono);font-size:13px;margin:-4px 0 4px}
.sec-count{font-family:var(--font-mono);font-size:12px;color:var(--muted);margin-left:8px;-webkit-text-transform:none;text-transform:none}
/* skills */
.about-skills{display:flex;flex-direction:column;gap:12px}
.sk-row{display:grid;grid-template-columns:1fr;gap:6px}
@media(min-width:640px){.sk-row{grid-template-columns:96px 1fr;gap:16px;align-items:center}}
.sk-label{font-family:var(--font-mono);font-size:13px;color:var(--violet)}
.sk-tags{display:flex;flex-wrap:wrap;gap:8px}
.sk-tag{font-size:13px;color:var(--text);background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.3);border-radius:8px;padding:3px 11px}
/* flat lists (awards/certs/courses/work/talks/community/leadership) */
.ab-list{list-style:none;display:flex;flex-direction:column}
.ab-li{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:11px 4px;border-bottom:1px solid var(--border)}
.ab-li:hover{background:var(--card)}
.ab-t{color:var(--text);font-size:14.5px;flex:1;min-width:60%}
.ab-tag{flex:none;font-family:var(--font-mono);font-size:11.5px;color:var(--cyan);border:1px solid rgba(34,211,238,.35);background:rgba(34,211,238,.06);border-radius:20px;padding:2px 10px;white-space:nowrap}
/* interests */
.about-interests{display:flex;flex-wrap:wrap;gap:10px}
.int-tag{font-family:var(--font-mono);font-size:13px;color:var(--text-soft);border:1px solid var(--border-bright);border-radius:20px;padding:5px 14px}
.about-contact{font-family:var(--font-mono);font-size:14px}

/* ===== SEARCH ===== */
.search-box{width:100%;background:var(--card);border:1px solid var(--border-bright);border-radius:12px;padding:16px 20px;color:var(--text);font-size:16px;font-family:var(--font-sans);outline:none;transition:var(--transition)}
.search-box:focus{border-color:var(--cyan);box-shadow:0 0 0 3px var(--cyan-dim)}
.search-count{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);margin:14px 2px}
.search-results{display:flex;flex-direction:column;gap:10px}
.sr{display:block;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px;transition:var(--transition)}
.sr:hover{border-color:var(--cyan);transform:translateX(3px)}
.sr-t{color:var(--text);font-weight:700;font-size:16px;margin-bottom:6px}
.sr-s{color:var(--muted);font-size:13.5px;line-height:1.6}
.sr-empty{color:var(--muted);font-family:var(--font-mono);font-size:14px;padding:20px 0}

/* ===== global RWD polish ===== */
@media(max-width:640px){
  .wrap{padding-left:18px;padding-right:18px}
  .post-content{font-size:15.5px}
  .hh-cta{gap:8px}
  .btn{padding:9px 16px}
  .tl-item{gap:10px;flex-wrap:wrap}
  .tl-cat{flex-basis:100%;padding-left:90px}
}

/* ---------- interactive: terminal / game / ripple ---------- */
.term-play{background:none;border:1px solid var(--border);color:var(--cyan);font:inherit;font-size:.82rem;padding:.28rem .7rem;border-radius:6px;cursor:pointer;transition:.15s}
.term-play:hover{border-color:var(--cyan);box-shadow:0 0 12px rgba(34,211,238,.25)}
.term-widget{background:#070b14;border:1px solid var(--border);border-radius:12px;overflow:hidden;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;box-shadow:0 0 0 1px rgba(34,211,238,.05),0 18px 40px -24px rgba(0,0,0,.8)}
.tw-bar{display:flex;align-items:center;gap:6px;padding:.5rem .8rem;background:#0b1120;border-bottom:1px solid var(--border)}
.tw-bar .dd{width:11px;height:11px;border-radius:50%}
.dd.r{background:#ff5f56}.dd.y{background:#ffbd2e}.dd.g{background:#27c93f}
.tw-title{margin-left:.5rem;font-size:.78rem;color:var(--muted)}
.tw-body{padding:.9rem 1rem;max-height:260px;overflow-y:auto;font-size:.86rem;line-height:1.7}
.tw-line{white-space:pre-wrap;word-break:break-word}
.tw-out{color:#a7b4c8}.tw-out b{color:var(--cyan);font-weight:600}
.tw-out.ok{color:var(--green)}.tw-out.err{color:#f87171}
.tw-fetch{color:var(--violet);margin:0;font-size:.82rem;line-height:1.5}
.tw-prompt{color:var(--green);user-select:none}
.tw-cmd{color:#e6edf6}
.tw-inline{display:flex;align-items:center;gap:.5rem;padding:.55rem 1rem;border-top:1px solid var(--border);background:#080d18}
.tw-inline input{flex:1;background:none;border:none;outline:none;color:#e6edf6;font:inherit;font-size:.86rem;caret-color:var(--cyan)}
.tw-inline input::placeholder{color:var(--muted)}

.click-ripple{position:fixed;width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;border:2px solid var(--cyan);pointer-events:none;z-index:9997;animation:ripple .6s ease-out forwards}
@keyframes ripple{0%{opacity:.7;transform:scale(.4)}100%{opacity:0;transform:scale(6)}}

.game-modal{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:rgba(3,5,10,.82);backdrop-filter:blur(4px);animation:gmfade .2s ease}
@keyframes gmfade{from{opacity:0}to{opacity:1}}
.game-box{background:#0a0e1a;border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:0 0 60px -12px rgba(34,211,238,.35);max-width:94vw}
.game-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.7rem 1rem;border-bottom:1px solid var(--border);font-family:ui-monospace,monospace}
.game-head>span:first-child{color:var(--cyan);font-weight:700;letter-spacing:.12em}
.game-score{color:var(--gold);font-size:.9rem;margin-left:auto}
.game-close{background:none;border:none;color:var(--muted);font-size:1rem;cursor:pointer;padding:.1rem .4rem;border-radius:5px}
.game-close:hover{color:#fff;background:rgba(255,255,255,.08)}
.game-canvas{display:block;width:600px;max-width:88vw;height:auto;background:#0a0e1a;touch-action:none}
.game-hint{padding:.55rem 1rem;font-size:.74rem;color:var(--muted);text-align:center;font-family:ui-monospace,monospace;border-top:1px solid var(--border)}
@media(max-width:640px){.tw-body{max-height:200px}}

/* ---------- about: 除此之外 ---------- */
.about-misc{list-style:none;margin:.4rem 0 0;padding:0;display:grid;gap:.55rem}
.misc-li{display:flex;gap:.6rem;align-items:baseline;color:var(--text-soft);font-size:.95rem;line-height:1.6}
.misc-mk{color:var(--green);font-family:ui-monospace,monospace;flex:none;font-weight:700}

/* ---------- on-site translator ---------- */
.tr-indicator{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:9996;background:rgba(10,14,26,.92);border:1px solid var(--border-bright);color:var(--cyan);font-family:var(--font-mono);font-size:12.5px;padding:8px 16px;border-radius:20px;backdrop-filter:blur(8px);transition:opacity .4s;pointer-events:none}
/* language switcher inside the nav */
.nav-links .lang-switch{margin-left:8px}
@media(max-width:720px){.nav-links .lang-switch{margin:10px 0 2px;align-self:flex-start}}

/* ---------- posts "看更多" ---------- */
.acard.hidden-more{display:none!important}
.load-more-wrap{display:flex;justify-content:center;margin:34px 0 4px}
.load-more{font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;color:var(--cyan);background:transparent;border:1px solid var(--border-bright);border-radius:24px;padding:11px 26px;cursor:pointer;transition:var(--transition)}
.load-more:hover{border-color:var(--cyan);background:var(--cyan-dim);box-shadow:0 0 18px rgba(34,211,238,.2)}

/* ---------- calm pass: strip neon glows, single restrained accent ---------- */
.brand .dot,.proj-dom .pd-dot{box-shadow:none!important}
.acard:hover,.proj-card:hover,.demo-card:hover{border-color:var(--border-bright)!important;box-shadow:0 10px 26px var(--shadow)!important}
.acard:hover .acard-title,.acard-title:hover{color:var(--text)!important}
.load-more:hover{box-shadow:none!important;background:var(--card-hover)!important;border-color:var(--border-bright)!important;color:var(--text)!important}
.search-box:focus{box-shadow:0 0 0 3px var(--cyan-dim)!important}
.btn.primary{background:transparent;border-color:var(--border-bright);color:var(--text)}
.btn:hover{border-color:var(--muted);color:var(--text)}
.hb-head h2{font-weight:700}
.hh-title{text-shadow:none}

/* 了解更多 button */
.scroll-more{align-self:flex-start;margin-top:8px;display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:13px;color:var(--text-soft);border:1px solid var(--border-bright);border-radius:24px;padding:9px 18px;text-decoration:none;transition:var(--transition)}
.scroll-more:hover{border-color:var(--muted);color:var(--text)}
.scroll-more .sm-ar{transition:transform .25s}
.scroll-more:hover .sm-ar{transform:translateY(3px)}

/* ---------- animated scroll-down indicator (before Featured) ---------- */
.scroll-anim{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:9px;text-decoration:none}
.sa-mouse{width:22px;height:34px;border:1.5px solid var(--border-bright);border-radius:12px;position:relative;display:block}
.sa-wheel{position:absolute;left:50%;top:6px;width:3px;height:6px;margin-left:-1.5px;border-radius:2px;background:var(--muted);animation:sawheel 1.7s cubic-bezier(.3,0,.2,1) infinite}
.sa-word{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.3em;color:var(--muted)}
.scroll-anim:hover .sa-mouse{border-color:var(--muted)}
@keyframes sawheel{0%{opacity:0;transform:translateY(-3px)}25%{opacity:1}55%{opacity:1;transform:translateY(11px)}100%{opacity:0;transform:translateY(11px)}}
@media(prefers-reduced-motion:reduce){.sa-wheel{animation:none}}
@media(max-width:640px){.scroll-anim{display:none}}

/* tag cloud + browser-dots: calm palette */
.tp:hover{color:var(--text)!important;border-color:var(--border-bright)!important;box-shadow:none!important}
.tp-tag:hover{color:var(--text)!important;border-color:var(--border-bright)!important;box-shadow:none!important}
.dd.r,.dd.y,.dd.g{background:var(--border-bright)!important}

/* flat down-arrow (replaces mouse indicator + 了解更多 button) */
.scroll-arrow{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);color:var(--muted);display:inline-flex;align-items:center;justify-content:center;padding:6px 12px;border-radius:8px;transition:color .25s,transform .25s}
.scroll-arrow:hover{color:var(--text);transform:translateX(-50%) translateY(4px)}
.scroll-arrow svg{display:block}

/* GitHub contribution grid (格子貢獻表) */
.gh-cal{--gap:3px;--wd:30px;margin-top:14px;border:1px solid var(--border);border-radius:12px;padding:16px 18px;background:var(--ghc-bg)}
.ghc-inner{width:100%}
.ghc-months{margin-left:calc(var(--wd) + 6px);display:grid;grid-template-columns:repeat(var(--weeks),1fr);gap:var(--gap);font-family:var(--font-mono);font-size:9.5px;color:var(--muted);margin-bottom:5px}
.ghc-months span{white-space:nowrap;overflow:visible}
.ghc-body{display:flex;gap:6px;align-items:stretch}
.ghc-wd{width:var(--wd);flex:none;display:grid;grid-template-rows:repeat(7,1fr);gap:var(--gap);font-family:var(--font-mono);font-size:9px;color:var(--muted)}
.ghc-wd span{display:flex;align-items:center}
.ghc-grid{flex:1;display:grid;grid-auto-flow:column;grid-template-rows:repeat(7,1fr);grid-auto-columns:1fr;gap:var(--gap);aspect-ratio:var(--weeks) / 7}
.ghc-cell{border-radius:2px;background:var(--ghl0)}
.ghc-cell[data-level="0"]{background:var(--ghl0)}
.ghc-cell[data-level="1"]{background:var(--ghl1)}
.ghc-cell[data-level="2"]{background:var(--ghl2)}
.ghc-cell[data-level="3"]{background:var(--ghl3)}
.ghc-cell[data-level="4"]{background:var(--ghl4)}
.ghc-grid .ghc-cell{min-width:0;min-height:0}
.ghc-pad{background:transparent!important}
.ghc-legend{display:flex;align-items:center;gap:3px;justify-content:flex-end;margin-top:10px;font-family:var(--font-mono);font-size:10px;color:var(--muted)}
.ghc-legend .ghc-cell{width:11px;height:11px;flex:none}
.ghc-legend span{margin:0 4px}
/* ghchart is light-only; invert+hue-rotate makes empty squares dark and keeps the accent */

/* infinite-scroll sentinel */
.posts-sentinel{height:1px;margin-top:20px}

/* ---------- code blocks: VS Code Dark+ syntax colors (vivid) ---------- */
.post-content figure.highlight{background:#1e1e1e;color:#d4d4d4;border-color:#2b2b2b}
.post-content figure.highlight .comment,.post-content figure.highlight .quote{color:#6a9955;font-style:italic}
.post-content figure.highlight .string,.post-content figure.highlight .regexp,.post-content figure.highlight .addition{color:#ce9178}
.post-content figure.highlight .keyword,.post-content figure.highlight .selector-tag,.post-content figure.highlight .literal,.post-content figure.highlight .name,.post-content figure.highlight .tag{color:#569cd6}
.post-content figure.highlight .built_in,.post-content figure.highlight .type,.post-content figure.highlight .class .title{color:#4ec9b0}
.post-content figure.highlight .number,.post-content figure.highlight .symbol,.post-content figure.highlight .bullet{color:#b5cea8}
.post-content figure.highlight .function .title,.post-content figure.highlight .title{color:#dcdcaa}
.post-content figure.highlight .attr,.post-content figure.highlight .attribute,.post-content figure.highlight .variable,.post-content figure.highlight .params,.post-content figure.highlight .template-variable{color:#9cdcfe}
.post-content figure.highlight .meta,.post-content figure.highlight .meta-keyword{color:#569cd6}
.post-content figure.highlight .section,.post-content figure.highlight .selector-class,.post-content figure.highlight .selector-id{color:#d7ba7d}
.post-content figure.highlight .deletion{color:#d16969}
.post-content figure.highlight .copy-btn{background:#2d2d2d;border-color:#3a3a3a;color:#cfcfcf}
.post-content figure.img-cap{margin:26px auto}
.post-content figure.img-cap img{margin:0 auto;display:block}
.post-content figure.img-cap figcaption{margin-top:8px;text-align:center;font-size:.85em;color:var(--muted);line-height:1.6}
.post-content .video-embed{position:relative;width:100%;max-width:720px;margin:26px auto;aspect-ratio:16/9;border:1px solid var(--border);border-radius:10px;overflow:hidden}
.post-content .video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* ---------- private traffic-analytics page ---------- */
.stats-gate{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:var(--bg);padding:24px}
.gate-box{width:100%;max-width:340px;display:flex;flex-direction:column;gap:12px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:26px 24px}
.gate-k{font-family:var(--font-mono);font-size:11px;color:var(--green);letter-spacing:.05em}
.gate-title{font-size:22px;font-weight:800;color:var(--text)}
.gate-note{font-size:13px;color:var(--muted);margin:-2px 0 4px}
.gate-box input{font-family:var(--font-mono);font-size:14px;padding:11px 13px;background:var(--bg-soft);border:1px solid var(--border-bright);border-radius:9px;color:var(--text);outline:none}
.gate-box input:focus{border-color:var(--cyan)}
.gate-btn{font-family:var(--font-mono);font-size:14px;padding:11px;border:1px solid var(--cyan);background:var(--cyan-dim);color:var(--cyan);border-radius:9px;cursor:pointer;transition:var(--transition)}
.gate-btn:hover{background:var(--cyan);color:#07080a}
.gate-err{font-size:12.5px;color:#e0736b;min-height:16px;font-family:var(--font-mono)}

.stats-panel{max-width:820px}
.stats-top{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.stats-top h1{font-size:clamp(26px,4vw,34px);font-weight:800;color:var(--text);margin-top:4px}
.stats-actions{display:flex;align-items:center;gap:12px}
.stats-updated{font-family:var(--font-mono);font-size:11.5px;color:var(--muted)}
.stats-refresh{font-family:var(--font-mono);font-size:12.5px;padding:8px 15px;border:1px solid var(--border-bright);background:transparent;color:var(--text-soft);border-radius:20px;cursor:pointer;transition:var(--transition)}
.stats-refresh:hover{border-color:var(--cyan);color:var(--cyan)}
.stats-refresh:disabled{opacity:.5;cursor:default}
.stats-totals{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:32px}
.stat-tile{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px 20px;display:flex;flex-direction:column;gap:4px}
.st-num{font-size:30px;font-weight:800;color:var(--text);line-height:1;font-variant-numeric:tabular-nums}
.st-lbl{font-family:var(--font-mono);font-size:11.5px;color:var(--muted)}
@media(max-width:560px){.stats-totals{grid-template-columns:1fr;gap:10px}.stat-tile{flex-direction:row;align-items:baseline;justify-content:space-between}}
.stats-listhead{display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:11px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;padding:0 4px 8px;border-bottom:1px solid var(--border)}
.stats-list{display:flex;flex-direction:column}
.stat-row{display:grid;grid-template-columns:26px 1fr 120px 56px;align-items:center;gap:14px;padding:13px 4px;border-bottom:1px solid var(--border);color:var(--text-soft)}
.stat-row:hover{background:var(--card)}
.sr-rank{font-family:var(--font-mono);font-size:12px;color:var(--muted);text-align:right}
.sr-main{min-width:0;display:flex;flex-direction:column;gap:2px}
.sr-title{color:var(--text);font-size:14.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sr-date{font-family:var(--font-mono);font-size:11px;color:var(--muted)}
.sr-bar{height:7px;background:var(--bg-soft);border-radius:4px;overflow:hidden}
.sr-bar i{display:block;height:100%;background:var(--cyan);border-radius:4px;transition:width .5s cubic-bezier(.22,1,.36,1)}
.sr-pv{font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--text);text-align:right;font-variant-numeric:tabular-nums}
.stats-foot{font-size:12px;color:var(--muted);margin-top:18px}
@media(max-width:560px){.stat-row{grid-template-columns:20px 1fr 46px}.sr-bar{display:none}}
/* private stats page: hide site chrome for a clean dashboard */
.is-stats .site-header,.is-stats .site-footer,.is-stats .totop,.is-stats .progress{display:none!important}
.is-stats .wrap{padding-top:44px;padding-bottom:60px}

/* ---------- hero: two-column with neofetch terminal ---------- */
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;width:100%}
@media(min-width:960px){.hero-grid{grid-template-columns:minmax(0,1fr) minmax(0,430px);gap:60px}}
.hero-main{min-width:0}
.hero-term{background:#0a0b0d;border:1px solid var(--border);border-radius:12px;overflow:hidden;font-family:var(--font-mono);font-size:12.5px;box-shadow:0 18px 44px -28px rgba(0,0,0,.9)}
@media(max-width:959px){.hero-term{display:none}}
.ht-bar{display:flex;align-items:center;gap:6px;padding:9px 12px;background:#101113;border-bottom:1px solid var(--border)}
.ht-bar .dd{width:9px;height:9px;border-radius:50%;background:var(--border-bright)}
.ht-title{margin-left:8px;color:var(--muted);font-size:11px}
.ht-body{padding:15px 17px 17px;display:flex;flex-direction:column;gap:5px}
.ht-line{display:flex;gap:10px;align-items:baseline;opacity:0;animation:htprint .45s cubic-bezier(.22,1,.36,1) forwards;animation-delay:calc(var(--i) * 85ms + 350ms)}
.ht-line b{color:var(--muted);font-weight:400;min-width:66px;flex:none}
.ht-line span{color:var(--text-soft);word-break:break-word}
.ht-p{color:var(--cyan);flex:none}
.ht-cmd{color:var(--text)!important}
.ht-user .ht-cmd{color:var(--cyan)!important}
.ht-rule span{color:var(--border-bright)}
.ht-blink{display:inline-block;width:7px;height:1em;background:var(--cyan);animation:hhblink 1.05s steps(2) infinite}
@keyframes htprint{from{opacity:0;transform:translateX(-7px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.ht-line{animation:none;opacity:1}.ht-blink{animation:none}}

/* hero live tool (inside the terminal) */
.ht-tool{opacity:0;animation:htprint .45s cubic-bezier(.22,1,.36,1) forwards;animation-delay:calc(var(--i) * 85ms + 350ms);margin-top:8px;padding-top:12px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px}
.htt-hint{color:var(--muted);font-size:11px}
.htt-modes{display:flex;flex-wrap:wrap;gap:5px}
.htt-modes button{font-family:var(--font-mono);font-size:11px;padding:3px 9px;border:1px solid var(--border);background:transparent;color:var(--muted);border-radius:20px;cursor:pointer;transition:var(--transition)}
.htt-modes button:hover{color:var(--text-soft);border-color:var(--border-bright)}
.htt-modes button.on{color:var(--cyan);border-color:var(--cyan);background:var(--cyan-dim)}
.htt-in{display:flex;align-items:center;gap:8px}
.htt-in input{flex:1;min-width:0;background:none;border:none;outline:none;color:var(--text);font-family:var(--font-mono);font-size:12.5px;caret-color:var(--cyan);border-bottom:1px dashed var(--border-bright);padding:3px 0}
.htt-in input:focus{border-bottom-color:var(--cyan)}
.htt-out{font-family:var(--font-mono);font-size:11.5px;line-height:1.5;color:var(--text-soft);word-break:break-all;max-height:74px;overflow-y:auto;min-height:1.5em}
.htt-out.accent{color:var(--cyan)}
.htt-out.dim{color:var(--muted)}

/* hero gadget: Game of Life */
.gadget{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px 16px 14px;box-shadow:0 18px 44px -28px rgba(0,0,0,.9)}
@media(max-width:900px){.gadget{display:none}}
.gg-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px}
.gg-title{font-family:var(--font-mono);font-weight:700;font-size:13px;color:var(--text);letter-spacing:.04em}
.gg-hint{font-size:11px;color:var(--muted)}
.gg-canvas{display:block;width:100%;border-radius:8px;background:#0a0b0d;cursor:crosshair;touch-action:none}
.gg-ctrl{display:flex;align-items:center;gap:8px;margin-top:12px}
.gg-ctrl button{font-family:var(--font-mono);font-size:12px;padding:6px 13px;border:1px solid var(--border-bright);background:transparent;color:var(--text-soft);border-radius:20px;cursor:pointer;transition:var(--transition)}
.gg-ctrl button:hover{border-color:var(--cyan);color:var(--cyan)}
.gg-gen{margin-left:auto;font-family:var(--font-mono);font-size:11.5px;color:var(--muted)}

/* hero social chips (replaces the CTA buttons) */
.hh-social{display:flex;flex-wrap:wrap;gap:11px}
.social-chip{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-mono);font-size:13px;padding:9px 16px 9px 14px;border:1px solid var(--border-bright);border-radius:24px;color:var(--text-soft);transition:var(--transition)}
.social-chip svg{flex:none;color:var(--muted);transition:var(--transition)}
.social-chip:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.social-chip:hover svg{color:var(--cyan)}

/* ---------- résumé page ---------- */
.resume-page{max-width:820px;margin:0 auto}
.rz-bar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  margin:0 0 26px;padding-bottom:18px;border-bottom:1px solid var(--border)}
.rz-toggle{display:inline-flex;border:1px solid var(--border-bright);border-radius:8px;overflow:hidden}
.rz-lang{background:transparent;color:var(--muted);border:0;padding:7px 16px;font:inherit;font-size:.85rem;
  cursor:pointer;transition:var(--transition)}
.rz-lang:hover{color:var(--text-soft)}
.rz-lang.active{background:var(--cyan-dim);color:var(--cyan)}
.rz-dls{display:inline-flex;gap:10px;flex-wrap:wrap}
.rz-dl{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border:1px solid var(--border-bright);
  border-radius:8px;color:var(--text-soft);font-size:.85rem;text-decoration:none;transition:var(--transition)}
.rz-dl svg{color:var(--muted);transition:var(--transition)}
.rz-dl:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.rz-dl:hover svg{color:var(--cyan)}

.rz-doc{color:var(--text-soft)}
.rz-id{border-bottom:2px solid var(--cyan);padding-bottom:14px;margin-bottom:8px}
.rz-name{font-size:1.7rem;font-weight:800;letter-spacing:.03em;color:var(--text)}
.rz-name span{font-size:1rem;font-weight:600;color:var(--muted);margin-left:10px;letter-spacing:.08em}
.rz-role{font-size:.9rem;color:var(--cyan);font-weight:600;margin-top:6px}
.rz-contact{font-size:.82rem;color:var(--muted);margin-top:7px;line-height:1.7;word-break:break-word}
.rz-contact a{color:var(--text-soft);text-decoration:none}
.rz-contact a:hover{color:var(--cyan)}
.rz-doc section{margin-top:20px}
.rz-doc h2{font-size:.82rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);
  border-bottom:1px solid var(--border);padding-bottom:5px;margin:0 0 10px}
.rz-sum{font-size:.92rem;line-height:1.75;color:var(--text-soft)}
.rz-skills{list-style:none;margin:0;padding:0}
.rz-skills li{font-size:.9rem;line-height:1.85;color:var(--text-soft)}
.rz-skills b{display:inline-block;min-width:96px;color:var(--text);font-weight:700;margin-right:8px}
.rz-e{margin:0 0 12px}
.rz-eh{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.rz-t{font-weight:700;color:var(--text);font-size:.94rem}
.rz-o{color:var(--muted);font-weight:400}
.rz-d{color:var(--muted);font-size:.82rem;white-space:nowrap;font-weight:600}
.rz-e ul{list-style:none;margin:4px 0 0;padding:0}
.rz-e li{position:relative;padding-left:15px;margin:4px 0;font-size:.88rem;line-height:1.6;color:var(--text-soft)}
.rz-e li::before{content:"–";position:absolute;left:2px;color:var(--cyan)}
.rz-flat{list-style:none;margin:0;padding:0}
.rz-flat li{position:relative;padding-left:15px;margin:5px 0;font-size:.88rem;line-height:1.6;color:var(--text-soft)}
.rz-flat li::before{content:"–";position:absolute;left:2px;color:var(--cyan)}
.rz-flat b{color:var(--text);font-weight:700}
.rz-tag{color:var(--muted)}
.rz-two{column-count:2;column-gap:32px}
.rz-two li{break-inside:avoid}
.rz-about-link{margin-top:10px}
@media (max-width:640px){
  .rz-two{column-count:1}
  .rz-eh{flex-direction:column;gap:0}
  .rz-skills b{min-width:0;display:block;margin-bottom:-2px}
}
.about-resume-link{margin:14px 0 4px}
.about-resume-link a{color:var(--cyan);font-size:.92rem;font-weight:600;text-decoration:none;border-bottom:1px solid var(--cyan-dim);padding-bottom:1px}
.about-resume-link a:hover{border-bottom-color:var(--cyan)}
.resume-cta{flex-wrap:wrap;gap:10px}
.rz-dl-ghost{border-style:dashed}
.about-resume-cta{margin:16px 0 4px}
.hero-resume{margin-top:16px}
@media (max-width:640px){ .hero-resume .rz-dl{font-size:.8rem;padding:6px 12px} }

/* ===== larger header on desktop (mobile keeps the compact hamburger bar) ===== */
@media(min-width:721px){
  .nav{padding:22px 34px}
  .brand{font-size:19px;gap:10px}
  .brand .dot{width:9px;height:9px}
  .nav-links{gap:30px;font-size:17px;font-weight:600}
  .nav-links a{letter-spacing:.02em}
  .lang-switch button{font-size:14px;font-weight:600;padding:7px 16px}
  /* keep content clear of the taller bar, and keep the featured snap aligned */
  .wrap{padding-top:112px}
  html,body{scroll-padding-top:108px}
}

/* ===== recommended posts (bottom of every article) ===== */
.post-recs{margin-top:52px;padding-top:30px;border-top:1px solid var(--border)}
.recs-head{display:flex;align-items:baseline;gap:14px;margin-bottom:18px}
.recs-k{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--cyan)}
.recs-head h2{font-size:1.15rem;font-weight:700;color:var(--text);margin:0}
.recs-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.rec-card{
  display:flex;flex-direction:column;border:1px solid var(--border);border-radius:14px;
  background:var(--card);text-decoration:none;overflow:hidden;
}
.rec-thumb{display:block;aspect-ratio:16/9;background:var(--bg-soft) center center/cover no-repeat;
  border-bottom:1px solid var(--border)}
.rec-thumb.noimg{display:flex;align-items:center;justify-content:center}
.rec-thumb.noimg span{font-family:var(--font-mono);font-size:12.5px;color:var(--text-soft)}
.rec-body{display:flex;flex-direction:column;gap:8px;flex:1;padding:14px 15px 15px}
/* frame animation: each card slides in from the left, one after another.
   Uses transitions (like .reveal elsewhere) rather than keyframes: the end state
   is carried by the .in class, so nothing can get stuck invisible. */
.rec-card{opacity:0;transform:translateX(-34px);
  transition:opacity .55s cubic-bezier(.22,1,.36,1),transform .55s cubic-bezier(.22,1,.36,1),
             border-color .25s,background .25s;
  transition-delay:calc(var(--i) * 110ms),calc(var(--i) * 110ms),0s,0s}
.post-recs.in .rec-card{opacity:1;transform:translateX(0)}
.post-recs.in .rec-card:hover{border-color:var(--cyan);background:var(--card-hover);transform:translateY(-3px);transition-delay:0s}
.rec-cat{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--cyan);text-transform:uppercase}
.rec-title{font-size:.95rem;font-weight:600;color:var(--text);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.rec-date{margin-top:auto;padding-top:2px;font-family:var(--font-mono);font-size:11.5px;color:var(--muted)}
@media(max-width:900px){ .recs-row{grid-template-columns:repeat(2,1fr)} }
@media(max-width:520px){ .recs-row{grid-template-columns:1fr} }
@media(prefers-reduced-motion:reduce){
  .rec-card{opacity:1;transform:none;transition:none;transition-delay:0s}
}

/* ===== theme toggle ===== */
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border:1px solid var(--border-bright);border-radius:50%;background:transparent;color:var(--muted);
  cursor:pointer;transition:var(--transition);flex:none}
.theme-toggle:hover{color:var(--cyan);border-color:var(--cyan)}
.theme-toggle .ic-sun{display:none}
.theme-toggle .ic-moon{display:block}
:root[data-theme="light"] .theme-toggle .ic-sun{display:block}
:root[data-theme="light"] .theme-toggle .ic-moon{display:none}
@media(min-width:721px){ .theme-toggle{width:40px;height:40px} }
@media(max-width:720px){ .nav-links .theme-toggle{align-self:flex-start;margin-top:10px} }

/* light-mode polish: keep code blocks and the terminal/boot UIs dark on purpose,
   but soften the seams so they sit well on a light page */
:root[data-theme="light"] .post-content figure.highlight{border-color:#d7dde3;box-shadow:0 2px 10px var(--shadow)}
:root[data-theme="light"] .acard-thumb.noimg{background:var(--bg-soft);color:var(--muted)}
:root[data-theme="light"] .progress{opacity:.9}

/* ===== article table of contents ===== */
.aside-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;gap:10px;
  padding:0 0 10px;margin:0;background:none;border:0;cursor:pointer;font:inherit;text-align:left}
.aside-toggle .chev{color:var(--muted);flex:none;transition:transform .25s var(--transition)}
.aside-toggle:hover .aside-label,.aside-toggle:hover .chev{color:var(--cyan)}
.post-aside.collapsed .aside-toggle{padding-bottom:0}
.post-aside.collapsed .aside-toggle .chev{transform:rotate(-90deg)}
.post-aside.collapsed .toc-body{display:none}

/* floating button — mobile only, bottom-left */
.toc-fab{display:none;position:fixed;left:18px;bottom:18px;z-index:120;
  width:46px;height:46px;align-items:center;justify-content:center;
  border:1px solid var(--border-bright);border-radius:50%;background:var(--card);color:var(--text-soft);
  cursor:pointer;box-shadow:0 8px 22px var(--shadow);transition:var(--transition)}
.toc-fab:hover,.toc-fab.open{color:var(--cyan);border-color:var(--cyan)}

@media(max-width:939px){
  .toc-fab{display:flex}
  /* the TOC becomes a drawer anchored above the button — hidden until asked for */
  .post-aside{position:fixed;left:18px;bottom:74px;z-index:119;
    width:min(330px,calc(100vw - 36px));max-height:min(58vh,460px);overflow:auto;
    padding:14px 16px;border:1px solid var(--border-bright);border-radius:14px;
    background:var(--card);box-shadow:0 18px 44px var(--shadow);
    opacity:0;visibility:hidden;transform:translateY(10px) scale(.98);
    transition:opacity .22s,transform .22s,visibility .22s}
  .post-aside.open{opacity:1;visibility:visible;transform:none}
  /* a desktop collapse must not leave the drawer empty */
  .post-aside.collapsed .toc-body{display:block}
  .post-aside .aside-toggle{pointer-events:none;padding-bottom:8px}
  .post-aside .aside-toggle .chev{display:none}
}
@media(prefers-reduced-motion:reduce){
  .aside-toggle .chev,.post-aside{transition:none}
}

/* ===== research & papers (list form — see note in about.ejs) ===== */
.about-papers{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.paper{position:relative;padding:16px 18px 16px 20px;border:1px solid var(--border);border-left:3px solid var(--cyan);
  border-radius:12px;background:var(--card);transition:var(--transition)}
.paper:hover{border-color:var(--border-bright);border-left-color:var(--cyan);background:var(--card-hover)}
.paper-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap}
.paper-title{font-size:1.02rem;font-weight:700;color:var(--text);line-height:1.5}
.paper-year{font-family:var(--font-mono);font-size:.8rem;color:var(--muted);white-space:nowrap}
.paper-venue{margin-top:5px;font-size:.88rem;color:var(--text-soft);line-height:1.6}
.paper-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}
.paper-tags span{font-size:.76rem;padding:3px 10px;border-radius:20px;
  background:var(--cyan-dim);color:var(--cyan);border:1px solid var(--border-bright)}
.paper-points{list-style:none;margin:12px 0 0;padding:0;border-top:1px solid var(--border);padding-top:11px}
.paper-points li{position:relative;padding-left:15px;margin:5px 0;font-size:.87rem;line-height:1.65;color:var(--text-soft)}
.paper-points li::before{content:"–";position:absolute;left:2px;color:var(--cyan)}
@media(max-width:560px){ .paper-head{flex-direction:column;gap:2px} }