/* ©FreddyDeveloper SmartKiller — Blog design system v3.0 */
:root{
  --bg:#060608; --bg2:#0b0b0f; --surface:#0f0f14; --surface2:#15151c; --elev:#1b1b24;
  --line:rgba(255,255,255,.07); --line2:rgba(255,255,255,.11); --line3:rgba(255,255,255,.18);
  --text:#ededf0; --text2:#a3a3ad; --text3:#6c6c78;
  --red:#ff2e3b; --red2:#e01e2b; --red-ink:#ff6b74; --red-s:rgba(255,46,59,.1); --red-glow:rgba(255,46,59,.38);
  --ok:#2bd99f; --ok-s:rgba(43,217,159,.1); --warn:#f5b942; --warn-s:rgba(245,185,66,.1);
  --lock:#ff8a3d; --lock-s:rgba(255,138,61,.11); --info:#5aa9ff; --info-s:rgba(90,169,255,.1);
  --sans:'Geist','Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'Geist Mono','JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;
  --serif:'Instrument Serif',Georgia,serif;
  --max:1200px; --r:14px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--red);color:#fff}
:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
@media(max-width:600px){.wrap{padding:0 16px}}
.mono{font-family:var(--mono)}
.serif{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.01em}

/* ---------- background texture ---------- */
.grid-bg{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000 30%,transparent 75%)}
.glow{position:absolute;pointer-events:none;border-radius:50%;filter:blur(90px);opacity:.55}
.noise{position:fixed;inset:0;pointer-events:none;z-index:200;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ---------- announcement ---------- */
.announce{position:relative;z-index:101;display:flex;justify-content:center;align-items:center;gap:10px;padding:9px 16px;font-size:13px;color:var(--text2);
  background:linear-gradient(90deg,transparent,rgba(255,46,59,.12),transparent);border-bottom:1px solid var(--line);text-align:center}
.announce b{color:var(--text);font-weight:500}
.announce a{color:var(--red-ink);font-weight:500;white-space:nowrap}
.announce a:hover{color:#fff}
.chip-new{font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.08em;color:#fff;background:var(--red);padding:2px 7px;border-radius:99px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(6,6,8,.72);backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{width:34px;height:34px;border-radius:9px;border:1px solid var(--line2)}
.brand-name{font-weight:600;font-size:16px;letter-spacing:-.02em}
.brand-name span{color:var(--red)}
.brand-sep{color:var(--text3);font-weight:300;margin:0 2px}
.brand-blog{font-size:14px;color:var(--text2);font-weight:500}
.nav-links{display:flex;gap:4px;flex:1}
.nav-links a{font-size:14px;color:var(--text2);padding:7px 12px;border-radius:8px;transition:color .15s,background .15s}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--text)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:500;padding:9px 16px;border-radius:10px;transition:all .18s;white-space:nowrap;cursor:pointer;border:0;font-family:inherit}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 0 0 1px rgba(255,255,255,.12) inset,0 8px 24px -8px var(--red-glow)}
.btn-primary:hover{background:#ff4752;box-shadow:0 0 0 1px rgba(255,255,255,.2) inset,0 10px 30px -6px var(--red-glow);transform:translateY(-1px)}
.btn-ghost{color:var(--text);background:rgba(255,255,255,.04);box-shadow:0 0 0 1px var(--line2) inset}
.btn-ghost:hover{background:rgba(255,255,255,.08);box-shadow:0 0 0 1px var(--line3) inset}
.btn-lg{font-size:15px;padding:12px 20px;border-radius:12px}
.burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line2);background:transparent;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.burger span{display:block;width:16px;height:1.5px;background:var(--text);transition:transform .2s,opacity .2s}
.burger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.mnav{display:none}
@media(max-width:860px){
  .nav-links,.nav-cta .btn-ghost{display:none}
  .burger{display:flex}
  .nav-in{gap:12px}
  .brand-blog,.brand-sep{display:none}
  .mnav.open{display:block;border-top:1px solid var(--line);padding:8px 16px 16px}
  .mnav a{display:block;padding:12px 4px;font-size:15px;color:var(--text2);border-bottom:1px solid var(--line)}
  .mnav a:last-child{border:0}
}
@media(max-width:400px){.nav-cta .btn-primary{padding:8px 12px;font-size:13px}}

/* ---------- eyebrow / labels ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--text2)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--red);box-shadow:0 0 0 0 var(--red-glow);animation:ping 2s infinite}
.dot.ok{background:var(--ok);box-shadow:0 0 0 0 rgba(43,217,159,.5)}
@keyframes ping{0%{box-shadow:0 0 0 0 var(--red-glow)}70%{box-shadow:0 0 0 9px transparent}100%{box-shadow:0 0 0 0 transparent}}
.tag{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;padding:3px 9px;border-radius:99px;border:1px solid var(--line2);color:var(--text2);background:rgba(255,255,255,.02)}
.tag.red{color:var(--red-ink);border-color:rgba(255,46,59,.35);background:var(--red-s)}
.tag.ok{color:var(--ok);border-color:rgba(43,217,159,.3);background:var(--ok-s)}
.tag.warn{color:var(--warn);border-color:rgba(245,185,66,.3);background:var(--warn-s)}
.tag.info{color:var(--info);border-color:rgba(90,169,255,.3);background:var(--info-s)}
.tag.lock{color:var(--lock);border-color:rgba(255,138,61,.3);background:var(--lock-s)}
.meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px;font-size:13px;color:var(--text3)}
.meta .sep{width:3px;height:3px;border-radius:50%;background:var(--text3)}
.author{display:inline-flex;align-items:center;gap:8px;color:var(--text2)}
.author img{width:22px;height:22px;border-radius:50%;border:1px solid var(--line2)}

/* ---------- section heads ---------- */
.sec{padding:96px 0;position:relative}
.sec-sm{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(28px,4vw,44px);font-weight:600;letter-spacing:-.035em;line-height:1.08;max-width:680px}
.sec-head p{color:var(--text2);max-width:420px;font-size:15px}
.sec-kicker{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--red-ink);margin-bottom:14px}
@media(max-width:600px){.sec{padding:64px 0}}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(16px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}*{animation:none!important}}

/* ---------- generated covers (Vercel-style) ---------- */
.cover{position:relative;overflow:hidden;background:var(--bg2);isolation:isolate}
.cover::before{content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:28px 28px;
  mask-image:radial-gradient(circle at 70% 30%,#000,transparent 70%);-webkit-mask-image:radial-gradient(circle at 70% 30%,#000,transparent 70%)}
.cover::after{content:"";position:absolute;z-index:-1;width:70%;aspect-ratio:1;right:-15%;top:-35%;border-radius:50%;background:radial-gradient(circle,var(--cv,rgba(255,46,59,.45)),transparent 65%);filter:blur(20px)}
.cover .cv-code{position:absolute;left:20px;bottom:18px;right:20px;font-family:var(--mono);font-size:12px;color:var(--text3);line-height:1.7;white-space:nowrap;overflow:hidden}
.cover .cv-code b{color:var(--text);font-weight:500}
.cover .cv-code i{font-style:normal;color:var(--red-ink)}
.cover .cv-big{position:absolute;left:20px;top:18px;font-family:var(--mono);font-size:12px;color:var(--text2);letter-spacing:.06em}
.cover .cv-glyph{position:absolute;right:22px;top:50%;transform:translateY(-50%);width:44%;max-width:180px;opacity:.95}

/* ---------- cards ---------- */
.card{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:border-color .2s,transform .25s,box-shadow .25s}
.card:hover{border-color:var(--line3);transform:translateY(-3px);box-shadow:0 24px 48px -24px rgba(0,0,0,.8),0 0 0 1px rgba(255,46,59,.08)}
.card .cover{aspect-ratio:16/9;border-bottom:1px solid var(--line)}
.card-b{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card h3{font-size:19px;font-weight:600;letter-spacing:-.02em;line-height:1.3}
.card p{font-size:14.5px;color:var(--text2);line-height:1.65;flex:1}
.card .meta{margin-top:4px}
.card .arrow{position:absolute;top:16px;right:16px;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:rgba(6,6,8,.6);border:1px solid var(--line2);color:var(--text);opacity:0;transform:translate(-4px,4px);transition:all .2s;backdrop-filter:blur(8px)}
.card:hover .arrow{opacity:1;transform:none}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);padding:64px 0 32px;position:relative;overflow:hidden}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px}
.foot-brand p{color:var(--text3);font-size:14px;margin-top:14px;max-width:300px}
.foot h4{font-size:13px;font-weight:500;color:var(--text);margin-bottom:14px}
.foot ul{list-style:none;display:grid;gap:10px}
.foot li a{font-size:14px;color:var(--text3);transition:color .15s}
.foot li a:hover{color:var(--text)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:56px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--text3)}
.foot-bottom a{color:var(--text2)}
.foot-bottom a:hover{color:var(--red-ink)}
.status{display:inline-flex;align-items:center;gap:8px}
.foot-word{font-weight:700;font-size:clamp(64px,16vw,220px);letter-spacing:-.06em;line-height:.8;text-align:center;margin-top:48px;
  background:linear-gradient(180deg,rgba(255,255,255,.08),transparent 85%);-webkit-background-clip:text;background-clip:text;color:transparent;user-select:none}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}}

/* ---------- shared fixes ---------- */
.copy{font-family:var(--mono);font-size:11px;color:var(--text2);background:var(--surface2);border:1px solid var(--line2);border-radius:7px;padding:4px 9px;cursor:pointer;flex-shrink:0}
.copy:hover{color:var(--text);border-color:var(--line3)}
.mini .tag{display:inline-flex}
.toc .toc-cta .btn{color:#fff;border-left:0;margin-left:0;padding:9px 12px;justify-content:center}
@media(max-width:640px){.announce .a-txt{display:none}}

/* ---------- cover illustrations (shared) ---------- */
.viz{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;max-width:620px}
.pill{font-family:var(--mono);font-size:12px;padding:6px 11px;border-radius:99px;border:1px solid var(--line2);background:rgba(10,10,14,.75);color:var(--text2);white-space:nowrap;backdrop-filter:blur(6px)}
.pill.hot{color:#fff;border-color:rgba(255,46,59,.55);background:rgba(255,46,59,.16);box-shadow:0 0 22px -4px var(--red-glow)}
.pill.ok{color:var(--ok);border-color:rgba(43,217,159,.4);background:rgba(43,217,159,.1)}
.viz .ar{color:var(--text3);font-family:var(--mono);font-size:12px}
.node{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:96px}
.node .box{width:58px;height:58px;border-radius:16px;display:grid;place-items:center;border:1px solid var(--line2);background:rgba(10,10,14,.8);font-family:var(--mono);font-size:11px;color:var(--text2)}
.node .box img{width:44px!important}
.node small{font-family:var(--mono);font-size:11px;color:var(--text3)}
.node.cf .box{border-color:rgba(255,138,61,.5);color:var(--lock);box-shadow:0 0 30px -8px rgba(255,138,61,.6)}
.node.sk .box{border-color:rgba(255,46,59,.55);box-shadow:0 0 30px -8px var(--red-glow)}
.wire{flex:1;min-width:30px;max-width:90px;height:1px;margin-bottom:22px;background:linear-gradient(90deg,var(--line3),rgba(255,46,59,.7));position:relative;overflow:hidden}
.wire::after{content:"";position:absolute;top:-1px;left:-30%;width:30%;height:3px;background:#fff;filter:blur(1px);animation:flow 2.2s linear infinite}
@keyframes flow{to{left:100%}}
.bars{display:flex;align-items:flex-end;gap:5px;height:110px}
.bars i{width:12px;border-radius:4px 4px 2px 2px;background:linear-gradient(180deg,var(--warn),rgba(245,185,66,.25))}
.bars i.x{background:linear-gradient(180deg,var(--red),rgba(255,46,59,.25));box-shadow:0 0 14px -2px var(--red-glow)}
.limit{position:absolute;left:-8px;right:-8px;bottom:72px;border-top:1px dashed rgba(255,255,255,.35)}
.limit span{position:absolute;left:0;top:-20px;font-family:var(--mono);font-size:10.5px;color:var(--text2)}
.ver{font-size:clamp(40px,8vw,72px);font-weight:600;letter-spacing:-.05em;line-height:1;display:flex;align-items:center;gap:18px}
.ver .old{color:var(--text3)} .ver .new{color:#fff;text-shadow:0 0 40px rgba(43,217,159,.5)}
.ver .ar2{font-size:.5em;color:var(--ok)}
.big503{display:flex;align-items:center;gap:26px}
.big503 b{font-size:clamp(56px,10vw,96px);font-weight:600;letter-spacing:-.06em;line-height:1;color:#fff;text-shadow:0 0 50px var(--red-glow)}
.big503 img{width:min(260px,40vw)!important;filter:drop-shadow(0 8px 30px rgba(255,46,59,.5))}
.big503 small{display:block;font-family:var(--mono);font-size:12px;color:var(--text2);margin-top:6px}
@media(max-width:560px){.node{min-width:0}.node .box{width:46px;height:46px;border-radius:13px}.node .box img{width:34px!important}.node small{font-size:9.5px}.wire{min-width:10px;max-width:40px}.viz .ar{display:none}.big503{flex-direction:column;gap:12px;text-align:center}.post-cover.cover{padding:52px 16px 50px}}
.card .cover{display:flex;align-items:center;justify-content:center}
.card .viz{transform:scale(.95);flex-wrap:nowrap}
.card .viz .pill{font-size:11px;padding:5px 9px}
.card .node{min-width:0}.card .node .box{width:44px;height:44px;border-radius:12px;font-size:10px}.card .node .box img{width:32px!important}.card .node small{font-size:9.5px}
.card .wire{min-width:14px;max-width:40px}
.card .bars{height:86px}.card .bars i{width:9px}.card .limit{bottom:56px}
.card .ver{font-size:58px}
.card .big503 b{font-size:64px}.card .big503 img{width:150px!important}.card .big503{gap:14px}