/* ---------- Tokens ---------- */
:root{
  --bg:#F7F8FA; --surface:#FFFFFF; --surface-2:#EEF2F6; --line:#E2E7EE;
  --ink:#152238; --heading:#0B2545; --muted:#56657A; --soft:#7A889B;
  --navy:#0B2545; --navy-2:#11305A;
  --accent:#D97706; --accent-ink:#8A4B05; --accent-hover:#B96404;
  --link:#0F766E;
  --btn-bg:#0B2545; --btn-fg:#FFFFFF;
  --code-bg:#0B2545; --code-fg:#DCE4EF; --inline-code:#E8EEF4;
  --tone-gold-bg:#FDEBD0; --tone-gold-fg:#8A4B05;
  --tone-teal-bg:#DDF3F0; --tone-teal-fg:#0B4F4A;
  --tone-blue-bg:#E3EEFB; --tone-blue-fg:#1E4E8C;
  --tone-purple-bg:#EDE8F7; --tone-purple-fg:#4B3A8C;
  --tone-green-bg:#E3F4E6; --tone-green-fg:#1F5B2C;
  --tone-rose-bg:#FBE4EA; --tone-rose-fg:#8C1D40;
  --shadow:0 1px 2px rgba(11,37,69,.04),0 8px 28px rgba(11,37,69,.06);
  --shadow-hover:0 2px 4px rgba(11,37,69,.06),0 16px 40px rgba(11,37,69,.10);
  --head-bg:rgba(247,248,250,.78);
  --display:'Playfair Display', Georgia, 'Times New Roman', serif;
  --body:'DM Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius:18px;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0A1322; --surface:#101C2F; --surface-2:#16253C; --line:#223350;
    --ink:#DCE4EF; --heading:#F3F6FA; --muted:#9FB0C7; --soft:#7F92AD;
    --link:#5EEAD4; --btn-bg:#F3F6FA; --btn-fg:#0B2545;
    --code-bg:#060D18; --inline-code:#1C2D47;
    --tone-gold-bg:rgba(217,119,6,.18); --tone-gold-fg:#FBBF24;
    --tone-teal-bg:rgba(13,148,136,.2); --tone-teal-fg:#5EEAD4;
    --tone-blue-bg:rgba(59,130,246,.18); --tone-blue-fg:#93C5FD;
    --tone-purple-bg:rgba(139,92,246,.2); --tone-purple-fg:#C4B5FD;
    --tone-green-bg:rgba(34,197,94,.16); --tone-green-fg:#86EFAC;
    --tone-rose-bg:rgba(244,63,94,.16); --tone-rose-fg:#FDA4AF;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 28px rgba(0,0,0,.25);
    --shadow-hover:0 2px 4px rgba(0,0,0,.3),0 16px 40px rgba(0,0,0,.35);
    --head-bg:rgba(10,19,34,.78);
  }
}

/* ---------- Base ---------- */
*{box-sizing:border-box}
html{scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--link);text-underline-offset:3px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--display);color:var(--heading);line-height:1.15;margin:0;letter-spacing:-.01em}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 12px;border-radius:8px;z-index:50}
.skip:focus{left:8px}
[hidden]{display:none !important}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 24px}
.section-h{font-size:26px;margin:0 0 20px}

/* ---------- Header ---------- */
.site-head{position:sticky;top:0;z-index:20;background:var(--head-bg);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid var(--line)}
.head-inner{min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--heading);font:700 19px var(--display)}
.brand svg{flex-shrink:0}
.site-head nav{display:flex;align-items:center;gap:6px;font-weight:600;font-size:15px}
.site-head nav a{display:inline-flex;align-items:center;min-height:40px;padding:0 12px;border-radius:9px;color:var(--muted);text-decoration:none}
.site-head nav a:hover,.site-head nav a[aria-current]{color:var(--heading);background:var(--surface-2)}
.site-head nav .nav-cta{margin-left:6px;background:var(--btn-bg);color:var(--btn-fg)}
.site-head nav .nav-cta:hover{background:var(--btn-bg);color:var(--btn-fg);opacity:.9}

/* ---------- Chips & meta ---------- */
.chip{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.01em}
.tone-gold{background:var(--tone-gold-bg);color:var(--tone-gold-fg)}
.tone-teal{background:var(--tone-teal-bg);color:var(--tone-teal-fg)}
.tone-blue{background:var(--tone-blue-bg);color:var(--tone-blue-fg)}
.tone-purple{background:var(--tone-purple-bg);color:var(--tone-purple-fg)}
.tone-green{background:var(--tone-green-bg);color:var(--tone-green-fg)}
.tone-rose{background:var(--tone-rose-bg);color:var(--tone-rose-fg)}
.meta{display:inline-flex;gap:6px;flex-wrap:wrap;font-size:14px;color:var(--soft)}

/* ---------- Typographic covers ---------- */
.cover-img{width:100%;height:100%;object-fit:cover}
.featured-cover,.card-cover{text-decoration:none;color:inherit}
.typo-cover{position:relative;width:100%;height:100%;display:flex;flex-direction:column;justify-content:flex-end;gap:10px;padding:28px;overflow:hidden;color:#fff;background-color:#0B2545;background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);background-size:20px 20px}
.tone-bg-teal{background-color:#0B4F4A}
.tone-bg-gold{background-color:#6B3A05}
.tone-bg-blue{background-color:#12345F}
.tone-bg-purple{background-color:#2E2461}
.tone-bg-green{background-color:#1D4D2A}
.tone-bg-rose{background-color:#6E1733}
.tc-label{font-size:13px;font-weight:600;opacity:.7}
.tc-title{font:700 clamp(34px,4.4vw,56px)/1.05 var(--display);max-width:12ch;text-wrap:balance}
.typo-cover.sm{padding:16px;gap:6px}
.typo-cover.sm .tc-title{font-size:30px}
.typo-cover.sm .tc-label{font-size:12px}
.tc-mark{position:absolute;top:22px;left:28px}
.typo-cover.sm .tc-mark{top:14px;left:16px}
.typo-cover.sm .tc-mark svg{width:24px;height:24px}

/* ---------- Hero ---------- */
.hero{padding-top:clamp(40px,7vw,88px);padding-bottom:40px}
.now{display:inline-flex;align-items:center;gap:10px;margin:0 0 22px;padding:6px 14px 6px 10px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:14px;color:var(--muted)}
.now-dot{width:8px;height:8px;border-radius:50%;background:#10B981;box-shadow:0 0 0 4px rgba(16,185,129,.18)}
.hero h1{font-size:clamp(36px,5vw,62px);line-height:1.06;max-width:20ch;text-wrap:balance}
.intro{margin:20px 0 28px;font-size:clamp(17px,1.5vw,19px);color:var(--muted);max-width:58ch}

/* ---------- Subscribe ---------- */
.sub-form{display:flex;flex-wrap:wrap;gap:10px;max-width:480px}
.sub-form input[type=email]{flex:1 1 220px;min-height:48px;padding:0 16px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:15px var(--body)}
.sub-form input[type=email]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(217,119,6,.18)}
.sub-form button{min-height:48px;padding:0 22px;border:0;border-radius:12px;background:var(--accent);color:#0B2545;font:700 15px var(--body);cursor:pointer;transition:background .15s}
.sub-form button:hover{background:var(--accent-hover);color:#fff}
.sub-form button[disabled]{opacity:.6;cursor:progress}
.sub-msg{flex-basis:100%;font-size:14px;color:var(--link)}
.sub-msg:empty{display:none}
.sub-form.on-dark input[type=email]{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#fff}
.sub-form.on-dark input::placeholder{color:#9FB0C7}
.sub-form.on-dark .sub-msg{color:#5EEAD4}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

/* ---------- Filters ---------- */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 24px}
.filters button{min-height:38px;padding:0 15px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:600 14px var(--body);cursor:pointer}
.filters button:hover{border-color:var(--soft)}
.filters button[aria-pressed=true]{background:var(--btn-bg);border-color:var(--btn-bg);color:var(--btn-fg)}

/* ---------- Featured ---------- */
.featured{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);background:var(--surface);border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:var(--shadow);transition:box-shadow .2s}
.featured:hover{box-shadow:var(--shadow-hover)}
.featured-cover{display:block;aspect-ratio:16/10;overflow:hidden}
.featured-cover .cover-img,.featured-cover .typo-cover{transition:transform .5s}
.featured:hover .featured-cover .cover-img,.featured:hover .featured-cover .typo-cover{transform:scale(1.02)}
.featured-body{padding:clamp(24px,3.5vw,44px);display:flex;flex-direction:column;justify-content:center;gap:14px}
.eyebrow-row{display:flex;align-items:center;gap:10px}
.latest{font-size:13px;font-weight:600;color:var(--soft)}
.featured-body h2{font-size:clamp(26px,2.8vw,36px);line-height:1.15;text-wrap:balance}
.featured-body h2 a{color:inherit;text-decoration:none;background-image:linear-gradient(currentColor,currentColor);background-size:0 2px;background-repeat:no-repeat;background-position:0 100%;transition:background-size .3s}
.featured-body h2 a::after{content:"";position:absolute;inset:0}
.featured{position:relative}
.featured:hover h2 a{background-size:100% 2px}
.featured-body p{margin:0;font-size:17px;color:var(--muted)}

.empty-state{background:var(--surface);border:1px dashed var(--line);border-radius:22px;padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px}
.empty-state p{margin:0;color:var(--muted)}
.btn{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:12px;background:var(--btn-bg);color:var(--btn-fg);text-decoration:none;font-weight:700}

/* ---------- Cards ---------- */
.latest-list,.more{margin-top:64px}
.cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px}
.card{position:relative;height:100%;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);color:var(--ink)}
.card-cover{display:block;aspect-ratio:16/9;overflow:hidden}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;align-items:flex-start;gap:9px;flex:1}
.card-body strong{font:700 20px/1.25 var(--display);color:var(--heading)}
.card-excerpt{font-size:15px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body .meta{margin-top:auto;font-size:13px}
.filter-empty{color:var(--muted)}

/* ---------- About band ---------- */
.about-band{margin-top:96px;padding:64px 0;background:var(--surface);border-top:1px solid var(--line)}
.about-grid{display:grid;grid-template-columns:1fr;gap:40px}
.profile{display:flex;flex-direction:column;gap:22px}
.profile-head{display:flex;gap:18px;align-items:center}
.profile-head h2{font-size:26px;margin-bottom:4px}
.profile-head p{margin:0;color:var(--muted);max-width:52ch}
.profile-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.profile-cols>div{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.profile-cols h3{font:700 13px var(--body);color:var(--soft);margin:0 0 10px;letter-spacing:.02em}
.profile-cols ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.profile-cols li{font-size:14.5px;line-height:1.45;color:var(--ink)}
.removed-note{max-width:640px;margin:80px auto;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}
.removed-note p{margin:0;color:var(--muted)}
.about-me{display:flex;gap:20px;align-items:flex-start}
.about-me h2{font-size:24px;margin-bottom:8px}
.about-me p{margin:0 0 14px;color:var(--muted);max-width:46ch}
.about-links{display:flex;flex-wrap:wrap;gap:6px 18px}
.about-links a{display:inline-flex;align-items:center;gap:6px;font-weight:600;text-decoration:none}
.about-links a:hover{text-decoration:underline}
.avatar{width:44px;height:44px;flex-shrink:0;border-radius:50%;background:#0D9488;color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}
.avatar.lg{width:64px;height:64px;font-size:24px;box-shadow:0 0 0 3px var(--surface),0 0 0 5px var(--accent)}
.sub-card{background:#0B2545;color:#DCE4EF;border-radius:22px;padding:32px 36px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:40px;align-items:center;background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);background-size:20px 20px}
.sub-card .sub-form{grid-column:2;grid-row:1 / span 2;max-width:none}
.sub-card h2{color:#fff;font-size:26px}
.sub-card p{margin:6px 0 0;color:#B7C3D4}

/* ---------- Footer ---------- */
.site-foot{border-top:1px solid var(--line);padding:26px 0;font-size:14px;color:var(--muted)}
.foot-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.foot-brand{display:flex;align-items:center;gap:10px;font:700 16px var(--display);color:var(--heading)}
.foot-brand svg{width:26px;height:26px}
.foot-links{display:flex;flex-wrap:wrap;gap:4px 20px}
.foot-links a{color:var(--muted);text-decoration:none}
.foot-links a:hover{color:var(--heading)}

/* ---------- Post ---------- */
.progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:30;pointer-events:none}
.progress span{display:block;height:100%;width:100%;background:var(--accent);transform-origin:0 50%;transform:scaleX(0)}
.post-head{padding-top:clamp(28px,5vw,56px);display:flex;flex-direction:column;align-items:flex-start;gap:16px}
.post-head h1,.post-head .lede{max-width:760px}
.back{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--muted);text-decoration:none}
.back::before{content:"";width:7px;height:7px;border-left:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg)}
.back:hover{color:var(--heading)}
.post-head h1{font-size:clamp(34px,4.6vw,54px);line-height:1.08;text-wrap:balance}
.lede{margin:0;font-size:clamp(18px,1.8vw,21px);line-height:1.55;color:var(--muted)}
.byline{display:flex;align-items:center;gap:12px;padding-top:4px}
.byline strong{display:block;color:var(--heading)}
.post-cover{width:100%;margin-top:36px;border-radius:22px;aspect-ratio:2/1;object-fit:cover}
.post-grid{display:grid;grid-template-columns:minmax(0,760px) minmax(0,1fr);gap:64px;margin-top:44px}
.post-grid.no-toc{grid-template-columns:minmax(0,760px)}
.post-body{display:flex;flex-direction:column;gap:28px;min-width:0}
.toc{position:sticky;top:96px;align-self:start;display:flex;flex-direction:column;gap:4px;padding-left:4px}
.toc strong{font-size:13px;color:var(--soft);margin-bottom:6px}
.toc a{font-size:14.5px;color:var(--muted);text-decoration:none;padding:5px 0 5px 14px;border-left:2px solid var(--line)}
.toc a:hover,.toc a.active{color:var(--heading);border-left-color:var(--accent)}
.toc a.active{font-weight:600}

.prose{font-size:19px;line-height:1.78;color:var(--ink);overflow-wrap:anywhere}
.prose>*:first-child{margin-top:0}
.prose h2{font-size:30px;margin:1.7em 0 .5em}
.prose h3{font-size:23px;margin:1.4em 0 .4em}
.prose p{margin:0 0 1.15em}
.prose a{color:var(--link)}
.prose strong{color:var(--heading)}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1.15em}
.prose li{margin:.35em 0}
.prose li::marker{color:var(--accent)}
.prose img{border-radius:14px;margin:1.5em 0}
.prose blockquote{margin:1.5em 0;padding:14px 20px;border-radius:12px;background:var(--surface-2);border-left:3px solid var(--accent);color:var(--ink)}
.prose blockquote p:last-child{margin:0}
.prose code{font-family:var(--mono);font-size:.84em}
.prose :not(pre)>code{background:var(--inline-code);padding:2px 6px;border-radius:6px}
.prose pre{position:relative;background:var(--code-bg);color:var(--code-fg);padding:22px 22px;border-radius:14px;overflow-x:auto;font-size:15px;line-height:1.7;margin:1.5em 0}
.copy-btn{position:absolute;top:10px;right:10px;min-height:32px;padding:0 10px;border:0;border-radius:7px;background:rgba(255,255,255,.1);color:#DCE4EF;font:600 12px var(--body);cursor:pointer}
.copy-btn:hover{background:rgba(255,255,255,.2)}
.prose table{border-collapse:collapse;width:100%;font-size:16px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:8px 12px;text-align:left}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

.lab-card{display:flex;align-items:center;gap:16px;padding:18px 20px;border-radius:16px;background:var(--surface);border:1px solid var(--line);text-decoration:none;color:var(--ink);transition:border-color .15s}
.lab-card:hover{border-color:var(--link);color:var(--ink)}
.lab-card>span:nth-child(2){flex:1}
.lab-card strong{display:block;color:var(--heading)}
.lab-card span span{font-size:14px;color:var(--muted)}
.lab-icon{width:44px;height:44px;flex-shrink:0;border-radius:12px;background:var(--tone-teal-bg);color:var(--tone-teal-fg);display:grid;place-items:center}
.tags{list-style:none;margin:0;padding:0;display:flex;gap:8px;flex-wrap:wrap}
.tags li{padding:4px 10px;border-radius:999px;background:var(--surface-2);color:var(--muted);font-size:13px;font-weight:600}
.share{display:flex;gap:10px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--line)}
.share-btn{display:inline-flex;align-items:center;gap:8px;min-height:42px;padding:0 16px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--heading);font:600 14px var(--body);text-decoration:none;cursor:pointer}
.share-btn:hover{border-color:var(--soft);color:var(--heading)}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .featured,.about-grid,.post-grid{grid-template-columns:1fr}
  .toc{display:none}
  .about-grid{gap:32px}
  .profile-cols{grid-template-columns:1fr}
  .sub-card{grid-template-columns:1fr;row-gap:8px}
  .sub-card .sub-form{grid-column:1;grid-row:auto;margin-top:10px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .site-head nav a:not(.nav-cta){display:none}
  .brand span{font-size:17px}
  .cards{grid-template-columns:1fr}
  .prose{font-size:18px}
  .post-cover{aspect-ratio:16/9;border-radius:16px}
  .about-me{flex-direction:column}
  .sub-card{padding:24px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .progress{display:none}
}