/* ============================================================
   blog.css — blog pages, sharing the portfolio's token system
   ============================================================ */
:root{
  --ink:#050914; --deep:#0a1226;
  --aqua:#4fe3d0; --violet:#8b6cff; --amber:#ffb86b;
  --bg:var(--ink); --bg-2:var(--deep);
  --text:#e8edf9; --text-dim:#93a2c4; --text-faint:#5f7099;
  --line:rgba(140,170,255,.14);
  --glass:rgba(20,34,70,.42); --glass-2:rgba(28,45,90,.30);
  --glass-brd:rgba(150,180,255,.16);
  --shadow:0 24px 70px -20px rgba(0,0,0,.85);
  --f-display:"Chakra Petch",system-ui,sans-serif;
  --f-body:"Sora",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,monospace;
  --maxw:1180px; --r:18px; --r-lg:26px;
  --sect:clamp(3rem,7vw,5.5rem);
  --ease:cubic-bezier(.22,.85,.3,1);
}
html[data-theme="light"]{
  --bg:#eef2fb; --bg-2:#e2e9f8;
  --text:#0d1730; --text-dim:#43547c; --text-faint:#7285ac;
  --line:rgba(20,45,110,.15);
  --glass:rgba(255,255,255,.62); --glass-2:rgba(255,255,255,.45);
  --glass-brd:rgba(30,60,130,.16);
  --shadow:0 24px 60px -24px rgba(25,45,95,.32);
  --aqua:#0e9d8c; --violet:#6242e0; --amber:#c2761c;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--f-body);background:var(--bg);color:var(--text);
  line-height:1.68;overflow-x:hidden;
  transition:background .5s var(--ease),color .5s var(--ease);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
::selection{background:var(--aqua);color:#04101c}

/* ambience */
.aurora{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.aurora i{position:absolute;display:block;border-radius:50%;filter:blur(90px);opacity:.34}
.aurora i:nth-child(1){width:44vw;height:44vw;background:var(--violet);top:-16%;left:-10%}
.aurora i:nth-child(2){width:36vw;height:36vw;background:var(--aqua);top:38%;right:-14%}
html[data-theme="light"] .aurora i{opacity:.24}

.wrap{width:min(100% - 2.2rem,var(--maxw));margin-inline:auto;position:relative;z-index:2}
.narrow{width:min(100% - 2.2rem,760px);margin-inline:auto;position:relative;z-index:2}

.glass{
  background:var(--glass);border:1px solid var(--glass-brd);border-radius:var(--r-lg);
  backdrop-filter:blur(22px) saturate(150%);-webkit-backdrop-filter:blur(22px) saturate(150%);
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}

h1,h2,h3,h4{font-family:var(--f-display);line-height:1.12;font-weight:600;letter-spacing:-.015em}

.eyebrow{
  font-family:var(--f-mono);font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;
  color:var(--aqua);display:flex;align-items:center;gap:.7rem;margin-bottom:1rem;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--aqua);opacity:.65;flex:none}

/* ---------- nav ---------- */
header{
  position:sticky;top:0;z-index:60;padding-block:.85rem;
  background:color-mix(in srgb,var(--bg) 78%,transparent);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{font-family:var(--f-display);font-weight:700;font-size:.98rem;display:flex;align-items:center;gap:.6rem}
.brand span{width:9px;height:9px;border-radius:50%;background:var(--aqua);box-shadow:0 0 14px var(--aqua)}
.nav-right{display:flex;align-items:center;gap:.5rem}
.nav-right a{font-size:.86rem;color:var(--text-dim);padding:.5rem .8rem;border-radius:99px;transition:.28s var(--ease)}
.nav-right a:hover{color:var(--text);background:var(--glass-2)}
.icon-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--glass-brd);
  background:var(--glass-2);display:grid;place-items:center;cursor:pointer;transition:.3s var(--ease);
}
.icon-btn:hover{border-color:var(--aqua);transform:translateY(-2px)}
.icon-btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.7}
@media(max-width:640px){.nav-right a{display:none}.nav-right a.keep{display:block}}

/* ---------- page head ---------- */
.page-head{padding-block:var(--sect) 2.5rem}
.page-head h1{font-size:clamp(2rem,5.5vw,3.2rem);margin-bottom:.6rem}
.page-head p{color:var(--text-dim);max-width:56ch}

/* ---------- tag filter ---------- */
.tagbar{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.8rem}
.tagbar a{
  font-family:var(--f-mono);font-size:.76rem;padding:.4rem .85rem;border-radius:99px;
  border:1px solid var(--glass-brd);background:var(--glass-2);color:var(--text-dim);
  transition:.28s var(--ease);
}
.tagbar a:hover{color:var(--text);border-color:var(--aqua);transform:translateY(-2px)}
.tagbar a.on{color:#04101c;background:var(--aqua);border-color:var(--aqua);font-weight:500}

/* ---------- featured ---------- */
.feat{
  display:grid;grid-template-columns:1.1fr .9fr;gap:0;margin-bottom:1.6rem;
  transition:.45s var(--ease);
}
.feat:hover{transform:translateY(-5px);border-color:color-mix(in srgb,var(--aqua) 34%,transparent)}
@media(max-width:820px){.feat{grid-template-columns:1fr}}
.feat-shot{position:relative;min-height:280px;overflow:hidden;background:var(--bg-2)}
.feat-shot img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.feat:hover .feat-shot img{transform:scale(1.05)}
.feat-body{padding:clamp(1.5rem,4vw,2.4rem);display:flex;flex-direction:column;justify-content:center}
.feat-body h2{font-size:clamp(1.3rem,3.2vw,1.85rem);margin-bottom:.7rem;line-height:1.2}
.feat-body p{color:var(--text-dim);font-size:.95rem;margin-bottom:1.2rem}
.star{
  position:absolute;top:1rem;left:1rem;z-index:2;
  font-family:var(--f-mono);font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;
  padding:.35rem .75rem;border-radius:99px;color:#04101c;font-weight:600;
  background:linear-gradient(100deg,var(--aqua),var(--violet));
}

/* ---------- post grid ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:1.15rem;padding-bottom:var(--sect)}
.card{display:flex;flex-direction:column;transition:.42s var(--ease)}
.card:hover{transform:translateY(-6px);border-color:color-mix(in srgb,var(--aqua) 34%,transparent)}
.card-shot{height:180px;overflow:hidden;background:var(--bg-2);position:relative;flex:none}
.card-shot img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease);opacity:.9}
.card:hover .card-shot img{transform:scale(1.06);opacity:1}
.card-shot.blank{
  display:grid;place-items:center;
  background:linear-gradient(135deg,color-mix(in srgb,var(--violet) 22%,transparent),color-mix(in srgb,var(--aqua) 18%,transparent));
}
.card-shot.blank span{font-family:var(--f-display);font-size:2rem;font-weight:700;color:var(--text);opacity:.28}
.card-body{padding:1.35rem;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:1.08rem;margin-bottom:.5rem;line-height:1.3}
.card-body p{color:var(--text-dim);font-size:.88rem;margin-bottom:1rem;flex:1}

.meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .85rem;
  font-family:var(--f-mono);font-size:.7rem;letter-spacing:.08em;
  color:var(--text-faint);text-transform:uppercase;margin-bottom:.7rem;
}
.meta b{color:var(--aqua);font-weight:500}
.tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:auto}
.tags a,.tags i{
  font-style:normal;font-family:var(--f-mono);font-size:.68rem;
  padding:.28rem .6rem;border-radius:7px;
  border:1px solid var(--line);color:var(--text-faint);transition:.25s var(--ease);
}
.tags a:hover{color:var(--aqua);border-color:var(--aqua)}

.readmore{
  display:inline-flex;align-items:center;gap:.5rem;align-self:flex-start;
  font-family:var(--f-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--aqua);transition:.3s var(--ease);
}
.readmore svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;transition:.3s var(--ease)}
.readmore:hover svg{transform:translateX(4px)}

/* ---------- empty ---------- */
.empty{
  text-align:center;padding:clamp(3rem,9vw,5.5rem) 1.5rem;margin-bottom:var(--sect);
}
.empty h2{font-size:1.4rem;margin-bottom:.6rem}
.empty p{color:var(--text-dim);max-width:44ch;margin:0 auto}

/* ---------- article ---------- */
.article-head{padding-block:var(--sect) 2rem}
.article-head h1{font-size:clamp(1.9rem,5vw,3rem);margin-bottom:1rem;letter-spacing:-.022em}
.cover{
  border-radius:var(--r-lg);overflow:hidden;margin-bottom:2.5rem;
  border:1px solid var(--glass-brd);box-shadow:var(--shadow);
}
.cover img{width:100%;aspect-ratio:16/8;object-fit:cover}

.prose{padding-bottom:var(--sect);font-size:1.02rem;color:var(--text-dim)}
.prose h2{font-size:clamp(1.35rem,3.4vw,1.75rem);margin:2.4rem 0 .9rem;color:var(--text)}
.prose h3{font-size:clamp(1.12rem,2.8vw,1.32rem);margin:2rem 0 .7rem;color:var(--text)}
.prose h4{font-size:1.05rem;margin:1.6rem 0 .5rem;color:var(--text)}
.prose p{margin-bottom:1.15rem}
.prose ul,.prose ol{margin:0 0 1.15rem 1.35rem}
.prose li{margin-bottom:.45rem}
.prose ul{list-style:none;margin-left:0}
.prose ul li{padding-left:1.35rem;position:relative}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;
  border-radius:2px;background:var(--aqua);opacity:.7;
}
.prose a{color:var(--aqua);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--text)}
.prose strong{color:var(--text);font-weight:600}
.prose img{border-radius:var(--r);margin:1.6rem 0;border:1px solid var(--glass-brd)}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.4rem 0}
.prose blockquote{
  border-left:2px solid var(--aqua);padding:.3rem 0 .3rem 1.3rem;margin:1.6rem 0;
  color:var(--text);font-style:italic;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose code{
  font-family:var(--f-mono);font-size:.87em;padding:.15em .42em;border-radius:6px;
  background:color-mix(in srgb,var(--aqua) 12%,transparent);
  border:1px solid var(--line);color:var(--text);
}
.prose pre{
  background:color-mix(in srgb,var(--bg-2) 88%,transparent);
  border:1px solid var(--glass-brd);border-radius:var(--r);
  padding:1.15rem 1.3rem;overflow-x:auto;margin:1.6rem 0;position:relative;
}
.prose pre code{background:none;border:0;padding:0;font-size:.85rem;line-height:1.7;color:var(--text)}
.prose pre[data-lang]::before{
  content:attr(data-lang);position:absolute;top:.6rem;right:.85rem;
  font-family:var(--f-mono);font-size:.65rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--text-faint);
}

.article-foot{
  border-top:1px solid var(--line);margin-top:2.5rem;padding-top:1.8rem;
  display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;padding:.78rem 1.45rem;border-radius:99px;
  font-size:.88rem;font-weight:500;border:1px solid transparent;cursor:pointer;
  transition:.32s var(--ease);
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9}
.btn-fill{
  background:linear-gradient(103deg,var(--aqua),var(--violet));color:#03101d;font-weight:600;
  box-shadow:0 12px 34px -12px var(--violet);
}
.btn-fill:hover{transform:translateY(-3px)}
.btn-ghost{background:var(--glass-2);border-color:var(--glass-brd);color:var(--text)}
.btn-ghost:hover{border-color:var(--aqua);transform:translateY(-3px)}
.btn-sm{padding:.5rem 1rem;font-size:.8rem}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

/* ---------- footer ---------- */
footer{
  border-top:1px solid var(--line);padding-block:2.2rem;position:relative;z-index:2;
  background:color-mix(in srgb,var(--bg-2) 40%,transparent);
}
.foot{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.82rem;color:var(--text-faint)}
.foot a:hover{color:var(--aqua)}

:focus-visible{outline:2px solid var(--aqua);outline-offset:3px;border-radius:6px}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}