/* CoreFlareSec blog — same design language as the v2 site */

:root{
  --t1:#0F172A; --t2:#334155; --t3:#94A3B8; --bd:#E2E8F0;
  --blue:#2E6FD8; --blue-dk:#1E4F91; --blue-xl:#EBF2FF;
  --orange:#FF6A00; --orange-h:#FF8C00; --orange-l:#FFA94D;
  --paper:#F5F7FA; --paper-2:#FFFFFF; --ink:#0B1220;
  --code-bg:#0B1017;
  --wrap:1200px; --read:46rem;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--t1)}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased;
     background:var(--paper);color:var(--t2);overflow-x:clip}
a{text-decoration:none;color:var(--blue)}
img{max-width:100%;height:auto}
button{border:0;font:inherit;background:none;cursor:pointer}

/* ---------- floating pill nav ---------- */
.navwrap{position:fixed;top:24px;left:50%;transform:translateX(-50%);z-index:50;width:max-content}
.pill{display:flex;align-items:center;gap:28px;background:#fff;border-radius:999px;
      padding:12px 14px 12px 24px;box-shadow:0 10px 30px rgba(0,0,0,.18)}
.brand{font-size:1.05rem;font-weight:800;letter-spacing:-.03em;color:#000}
.brand em{font-style:normal;color:var(--orange)}
.burger{width:36px;height:36px;border-radius:999px;display:flex;flex-direction:column;
        align-items:center;justify-content:center;gap:5px;background:var(--t1)}
.burger span{display:block;width:16px;height:2px;background:#fff;border-radius:2px;
             transition:transform .3s cubic-bezier(.77,0,.175,1)}
.navwrap.open .burger span:first-child{transform:translateY(3.5px) rotate(45deg)}
.navwrap.open .burger span:last-child{transform:translateY(-3.5px) rotate(-45deg)}
.dropdown{margin-top:10px;background:#fff;border-radius:18px;padding:10px;
          box-shadow:0 16px 40px rgba(0,0,0,.2);display:flex;flex-direction:column;
          opacity:0;transform:translateY(-8px) scale(.96);pointer-events:none;
          transition:opacity .25s ease,transform .25s ease}
.navwrap.open .dropdown{opacity:1;transform:none;pointer-events:auto}
.dropdown a{padding:10px 18px;border-radius:12px;color:var(--t1);font-size:.9rem;font-weight:500}
.dropdown a:hover{background:var(--paper)}
.dd-sep{height:1px;background:var(--bd);margin:8px 10px}
.dropdown a.dd-cta{background:var(--orange);color:#fff;font-weight:600;text-align:center;margin-top:4px}
.dropdown a.dd-cta:hover{background:var(--orange-h)}

/* ---------- masthead ---------- */
.mast{position:relative;background:var(--t1);padding:180px 24px 130px;overflow:hidden;margin-bottom:-25px}
.mast::before{content:'';position:absolute;inset:0;z-index:2;
              background-image:radial-gradient(rgba(46,111,216,.12) 1px,transparent 1px);background-size:32px 32px}
.mast::after{content:'';position:absolute;top:-30vh;left:60%;width:90vh;height:90vh;border-radius:50%;z-index:2;
             background:radial-gradient(circle,rgba(255,106,0,.18) 0%,transparent 65%);pointer-events:none}
.mast-in{position:relative;z-index:3;max-width:var(--wrap);margin:0 auto}
.kicker{color:var(--orange-l);font-size:.7rem;font-weight:700;letter-spacing:.28em;text-transform:uppercase;
        margin-bottom:18px;display:flex;align-items:center;gap:10px}
.kicker::before{content:'';width:26px;height:2px;background:var(--orange);border-radius:2px;flex-shrink:0}
.mast h1{color:#fff;font-size:clamp(2.6rem,7vw,5rem);font-weight:800;line-height:1;letter-spacing:-.04em;
         text-shadow:0 6px 34px rgba(0,0,0,.5)}
.mast h1 em{font-style:normal;color:var(--orange)}
.mast p{color:rgba(255,255,255,.72);font-size:1.05rem;line-height:1.7;max-width:44rem;margin-top:22px;
        text-shadow:0 2px 16px rgba(0,0,0,.5)}
.mast .meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.mast .meta span{font-size:.75rem;font-weight:600;color:rgba(255,255,255,.85);
                 border:1px solid rgba(255,106,0,.35);background:rgba(255,106,0,.08);
                 border-radius:999px;padding:5px 14px}

/* drifting artwork behind the masthead — no controls, it just cycles */
.mast-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.mast-slide{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat;
            opacity:0;transform:scale(1.12);transition:opacity 1.6s ease,transform 9s linear}
.mast-slide.on{opacity:.58;transform:scale(1)}
.mast-art::before{z-index:2}
.mast-art .mast-bg::after{content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,23,42,.86) 0%,rgba(15,23,42,.7) 42%,rgba(15,23,42,.5) 70%,rgba(15,23,42,.62) 100%),
             linear-gradient(180deg,rgba(15,23,42,.55) 0%,rgba(15,23,42,.25) 45%,rgba(15,23,42,.9) 100%)}

/* ---------- page shell ---------- */
main{position:relative;z-index:2;background:var(--paper);border-radius:25px 25px 0 0;
     padding:72px 24px 96px}
.wrap{max-width:var(--wrap);margin:0 auto}
.read{max-width:var(--read);margin:0 auto}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;
          flex-wrap:wrap;margin-bottom:32px}
.sec-head h2{font-size:1.5rem;font-weight:800;color:var(--t1);letter-spacing:-.02em;
             position:relative;padding-left:16px}
.sec-head h2::before{content:'';position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
                     background:var(--orange);border-radius:3px}
.sec-head a{font-size:.85rem;font-weight:700;color:var(--orange);display:inline-flex;gap:6px;transition:gap .2s}
.sec-head a:hover{gap:10px;color:var(--orange-h)}

/* ---------- post list ---------- */
.posts{display:grid;gap:18px}
.pcard{position:relative;background:var(--paper-2);border:1px solid var(--bd);border-radius:20px;
       padding:26px 28px 26px 32px;overflow:hidden;
       transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.pcard::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--orange);
               transform:scaleY(0);transform-origin:top;transition:transform .25s ease}
.pcard:hover{transform:translateY(-3px);border-color:rgba(255,106,0,.4);box-shadow:0 14px 40px rgba(15,23,42,.08)}
.pcard:hover::before{transform:scaleY(1)}
.pcard h3{font-size:1.2rem;font-weight:700;color:var(--t1);line-height:1.35;letter-spacing:-.01em}
.pcard h3 a{color:inherit}
.pcard h3 a::after{content:'';position:absolute;inset:0}
.pcard .meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;
             font-size:.78rem;color:var(--t3);font-weight:500}
.pcard .meta .dot{width:3px;height:3px;border-radius:50%;background:var(--bd)}
.pcard p.excerpt{margin-top:12px;font-size:.92rem;line-height:1.7;color:var(--t2)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;position:relative;z-index:1}
.tag{font-size:.7rem;font-weight:600;color:var(--blue-dk);background:var(--blue-xl);
     border-radius:999px;padding:4px 11px}
.tag:hover{background:#DCE8FF}
/* home layout: posts on the left, big tag rail on the right */
.home{display:grid;gap:40px}
.side{align-self:start}
.side-box{background:var(--paper-2);border:1px solid var(--bd);border-radius:20px;padding:22px 22px 24px}
.side-box + .side-box{margin-top:18px}
.side h3{font-size:.68rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--t1);
         margin-bottom:16px;position:relative;padding-left:14px}
.side h3::before{content:'';position:absolute;left:0;top:.1em;bottom:.1em;width:3px;background:var(--orange);border-radius:2px}
.bigtags{display:flex;flex-wrap:wrap;gap:9px}
.bigtags a{display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:12px;
           background:var(--paper);border:1px solid var(--bd);color:var(--t1);
           font-size:.92rem;font-weight:700;letter-spacing:-.01em;transition:all .18s ease}
.bigtags a:hover{background:var(--orange);border-color:var(--orange);color:#fff;transform:translateY(-2px)}
.bigtags b{font-size:.72rem;font-weight:700;color:var(--t3);background:#fff;border-radius:999px;
           padding:2px 8px;min-width:22px;text-align:center}
.bigtags a:hover b{background:rgba(255,255,255,.24);color:#fff}
.side-cta{display:block;text-align:center;background:var(--t1);color:#fff;border-radius:12px;
          padding:12px 16px;font-size:.85rem;font-weight:600;margin-top:14px}
.side-cta:hover{background:var(--orange)}
.side p{font-size:.85rem;line-height:1.7;color:var(--t2)}

.tag-list{display:flex;flex-wrap:wrap;gap:10px;list-style:none}
.tag-list a{display:inline-flex;align-items:center;gap:7px;background:var(--paper-2);
            border:1px solid var(--bd);border-radius:999px;padding:8px 16px;
            font-size:.85rem;font-weight:600;color:var(--t1)}
.tag-list a:hover{border-color:var(--orange);color:var(--orange)}
.tag-list b{color:var(--t3);font-weight:600}
.empty{color:var(--t3);font-size:.95rem}

/* ---------- article ---------- */
.post-head{max-width:var(--read);margin:0 auto 36px}
.post-head h1{font-size:clamp(1.9rem,4vw,2.8rem);font-weight:800;color:var(--t1);
              line-height:1.15;letter-spacing:-.03em}
.post-head .meta{margin-top:14px;font-size:.82rem;color:var(--t3);font-weight:500;
                 display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.post{max-width:var(--read);margin:0 auto;font-size:1.02rem;line-height:1.8;color:var(--t2)}
.post > * + *{margin-top:1.15em}
.post h2{font-size:1.5rem;font-weight:800;color:var(--t1);letter-spacing:-.02em;margin-top:2em;line-height:1.3}
.post h3{font-size:1.18rem;font-weight:700;color:var(--t1);margin-top:1.7em}
.post h4{font-size:1rem;font-weight:700;color:var(--t1);margin-top:1.5em}
.post a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.post a:hover{color:var(--orange)}
.post strong{color:var(--t1);font-weight:600}
.post ul,.post ol{padding-left:1.35em}
.post li+li{margin-top:.4em}
.post img{border-radius:14px;border:1px solid var(--bd);display:block}
.post figure figcaption{font-size:.8rem;color:var(--t3);text-align:center;margin-top:8px}
.post blockquote{border-left:3px solid var(--orange);background:var(--paper-2);
                 border-radius:0 12px 12px 0;padding:14px 20px;color:var(--t2)}
.post hr{border:0;height:1px;background:var(--bd);margin:2.4em 0}
.post table{border-collapse:collapse;width:100%;display:block;overflow-x:auto;font-size:.9rem}
.post th,.post td{border:1px solid var(--bd);padding:8px 12px;text-align:left}
.post th{background:var(--paper-2);color:var(--t1)}

/* code */
code{font-family:ui-monospace,"Cascadia Code",Consolas,monospace;font-size:.88em;
     background:#EAEEF5;color:#0B1220;padding:.15em .42em;border-radius:5px}
pre.hljs{background:var(--code-bg);border:1px solid #1B2432;border-radius:14px;
         padding:18px 20px;overflow-x:auto;font-size:.85rem;line-height:1.6}
pre.hljs code{background:none;padding:0;color:#C9D4DD;font-size:inherit}

.hljs-comment,.hljs-quote{color:#6B7C8C;font-style:italic}
.hljs-keyword,.hljs-selector-tag,.hljs-meta{color:#C792EA}
.hljs-string,.hljs-addition,.hljs-regexp{color:#9FEF00}
.hljs-number,.hljs-literal,.hljs-symbol{color:#FFA94D}
.hljs-title,.hljs-section,.hljs-name{color:#61AFEF}
.hljs-attr,.hljs-attribute,.hljs-variable,.hljs-template-variable{color:#FF7B72}
.hljs-built_in,.hljs-type,.hljs-class{color:#E5C07B}
.hljs-deletion{color:#FF7B72}

/* locked posts */
.lock-badge{display:inline-block;vertical-align:middle;font-size:.6rem;font-weight:700;letter-spacing:.12em;
            text-transform:uppercase;color:#fff;background:var(--orange);border-radius:999px;
            padding:4px 10px;margin-left:8px;position:relative;z-index:1}
.pcard.is-locked{border-color:rgba(255,106,0,.35)}
.locked{max-width:var(--read);margin:0 auto}
.lock-card{background:var(--paper-2);border:1px solid var(--bd);border-radius:20px;
           padding:36px 32px;text-align:center}
.lock-icon{width:54px;height:54px;border-radius:14px;margin:0 auto 18px;display:flex;align-items:center;
           justify-content:center;background:rgba(255,106,0,.1);color:var(--orange)}
.lock-card h2{font-size:1.25rem;font-weight:800;color:var(--t1);letter-spacing:-.02em}
.lock-card p{font-size:.9rem;line-height:1.7;color:var(--t2);max-width:34rem;margin:10px auto 0}
#unlock-form{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px}
#unlock-form input{flex:1 1 240px;max-width:320px;padding:12px 16px;border-radius:12px;
                   border:1px solid var(--bd);background:var(--paper);color:var(--t1);
                   font:inherit;font-size:.92rem}
#unlock-form input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,106,0,.15)}
#unlock-form button{padding:12px 24px;border-radius:12px;background:var(--t1);color:#fff;
                    font-size:.9rem;font-weight:600;transition:background .2s}
#unlock-form button:hover{background:var(--orange)}
#unlock-form button:disabled{opacity:.6;cursor:default}
.lock-err{color:#C0392B;font-size:.85rem;font-weight:600;margin-top:14px}

/* newer / older post navigation */
.postnav{max-width:var(--read);margin:56px auto 0;display:grid;gap:14px}
.pnav-card{position:relative;display:flex;flex-direction:column;gap:6px;overflow:hidden;
           background:var(--paper-2);border:1px solid var(--bd);border-radius:16px;
           padding:18px 20px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.pnav-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--orange);
                   transform:scaleY(0);transform-origin:center;transition:transform .25s ease}
.pnav-card:hover{transform:translateY(-3px);border-color:rgba(255,106,0,.4);box-shadow:0 12px 32px rgba(15,23,42,.08)}
.pnav-card:hover::before{transform:scaleY(1)}
.pnav-next::before{left:auto;right:0}
.pnav-next{text-align:right;align-items:flex-end}
.pnav-dir{font-size:.7rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--orange)}
.pnav-title{font-size:.98rem;font-weight:700;color:var(--t1);line-height:1.4}
.pnav-card.is-empty{display:none}

/* post footer nav */
.post-foot{max-width:var(--read);margin:56px auto 0;padding-top:28px;border-top:1px solid var(--bd);
           display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.backlink{font-size:.88rem;font-weight:600;color:var(--t1);display:inline-flex;gap:7px;align-items:center}
.backlink:hover{color:var(--orange)}

/* ---------- footer ---------- */
footer{position:relative;z-index:10;background:#070B14;padding:64px 24px 24px;
       border-top:1px solid rgba(255,255,255,.08);box-shadow:inset 0 1px 0 rgba(255,106,0,.35)}
.fwrap{max-width:var(--wrap);margin:0 auto;display:grid;gap:44px;padding-bottom:36px;
       border-bottom:1px solid rgba(255,255,255,.08)}
.fbrand{display:flex;gap:16px;align-items:flex-start}
.fbrand img{width:44px;height:44px;object-fit:contain;background:#fff;border-radius:10px;padding:5px;flex-shrink:0}
.fname{font-size:1.1rem;font-weight:800;color:#fff;letter-spacing:-.03em;margin-bottom:10px}
.fname em{font-style:normal;color:var(--orange)}
.fbrand p{font-size:.85rem;color:#64748B;line-height:1.7;max-width:300px}
.fcols{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.fcols>div{padding-left:18px;border-left:1px solid rgba(255,255,255,.08)}
.fh{font-size:.68rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:#fff;
    margin-bottom:16px;position:relative}
.fh::before{content:'';position:absolute;left:-18px;top:2px;bottom:2px;width:2px;background:var(--orange);border-radius:2px}
.fcols ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.fcols a,.fcols span{font-size:.85rem;color:#64748B}
.fcols a:hover{color:var(--orange-l)}
.fbot{max-width:var(--wrap);margin:22px auto 0;display:flex;flex-wrap:wrap;gap:10px;
      justify-content:space-between;font-size:.76rem;color:#64748B}
.fbot b{color:var(--orange-l);font-weight:600}
.fbot a{color:#64748B}
.fbot a:hover{color:var(--orange-l)}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

@media(min-width:760px){
  .posts{gap:20px}
  .mast{padding:200px 24px 150px}
  .postnav{grid-template-columns:1fr 1fr}
  .pnav-card.is-empty{display:block;background:none;border:0;box-shadow:none}
  .pnav-card.is-empty:hover{transform:none}
}
@media(min-width:900px){
  .fwrap{grid-template-columns:1.4fr 2.6fr}
  .fcols{grid-template-columns:repeat(3,1fr)}
  .home{grid-template-columns:minmax(0,1fr) 300px;gap:44px}
  .side{position:sticky;top:104px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .pcard,.dropdown,.burger span{transition:none}
  /* keep the artwork rotating, but drop the zoom — a plain crossfade is motion-safe */
  .mast-slide,.mast-slide.on{transform:none;transition:opacity 1.6s ease}
}

/* ---------- languages ---------- */
/* The filter bar ships hidden and lang.js reveals it, so a reader with no
   JS keeps the full unfiltered archive instead of a row of dead buttons. */
.langbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:-8px 0 22px}
.langbar > span{font-size:.66rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--t3);margin-right:4px}
.langbar button{border:1px solid var(--bd);background:var(--paper-2);color:var(--t2);
  border-radius:999px;padding:6px 15px;font:inherit;font-size:.78rem;font-weight:600;cursor:pointer;
  transition:border-color .2s,background .2s,color .2s}
.langbar button:hover{border-color:rgba(255,106,0,.5);color:var(--t1)}
.langbar button.is-on{background:var(--t1);border-color:var(--t1);color:#fff}

/* the counterpart's language, as a chip in the card meta row */
a.lang-chip,span.lang-chip{display:inline-flex;align-items:center;border-radius:999px;
  padding:2px 9px;font-size:.64rem;font-weight:800;letter-spacing:.08em;
  background:var(--blue-xl);color:var(--blue-dk);border:1px solid rgba(46,111,216,.22)}
a.lang-chip:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* the switch on a post page */
.langswitch{display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  border:1px solid var(--bd);background:var(--paper-2);border-radius:999px;
  padding:7px 17px;font-size:.8rem;font-weight:600;color:var(--t2);
  transition:border-color .2s,color .2s,transform .2s}
.langswitch:hover{border-color:var(--orange);color:var(--t1);transform:translateY(-1px)}
.langswitch svg{color:var(--orange);flex-shrink:0}

@media(prefers-reduced-motion:reduce){
  .langswitch{transition:none}
}