/* =============================================
   BASE RESET & DESIGN TOKENS
   ============================================= */
*{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#ffffff;
  --bg2:#f8fafc;
  --surface:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --muted-2:#94a3b8;
  --accent:#4f46e5;
  --accent-2:#7c3aed;
  --accent-light:#eef2ff;
  --accent-text:#4338ca;
  --ring:#c7d2fe;
  --border:#e6e9f0;
  --code-bg:#0f172a;
  --shadow-sm:0 1px 2px rgba(15,23,42,.04);
  --shadow-md:0 8px 24px rgba(15,23,42,.06);
  --shadow-lg:0 20px 48px rgba(15,23,42,.10);
  --nav-h:68px;
  --radius:14px;
  --radius-sm:8px;
  --scheme:light;
  --font-display:'Space Grotesk',Inter,system-ui,sans-serif;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0a0e17;
    --bg2:#0f1420;
    --surface:#131928;
    --text:#eef1f8;
    --muted:#93a0b8;
    --muted-2:#6b7690;
    --accent:#818cf8;
    --accent-2:#a78bfa;
    --accent-light:#1a1f3a;
    --accent-text:#a5b4fc;
    --ring:#312e81;
    --border:#232a3d;
    --code-bg:#080b12;
    --shadow-sm:0 1px 2px rgba(0,0,0,.3);
    --shadow-md:0 8px 24px rgba(0,0,0,.35);
    --shadow-lg:0 24px 60px rgba(0,0,0,.5);
    --scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0a0e17;
  --bg2:#0f1420;
  --surface:#131928;
  --text:#eef1f8;
  --muted:#93a0b8;
  --muted-2:#6b7690;
  --accent:#818cf8;
  --accent-2:#a78bfa;
  --accent-light:#1a1f3a;
  --accent-text:#a5b4fc;
  --ring:#312e81;
  --border:#232a3d;
  --code-bg:#080b12;
  --shadow-sm:0 1px 2px rgba(0,0,0,.3);
  --shadow-md:0 8px 24px rgba(0,0,0,.35);
  --shadow-lg:0 24px 60px rgba(0,0,0,.5);
  --scheme:dark;
}

html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background-color .25s ease,color .25s ease;
  position:relative;
}
::selection{background:var(--ring);color:var(--text)}

/* subtle film-grain texture for depth */
body::before{
  content:'';position:fixed;inset:0;z-index:1;pointer-events:none;
  opacity:.035;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='90' height='90'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* reveal-on-scroll */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in-view{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* =============================================
   NAVIGATION
   ============================================= */
nav{
  position:fixed;top:0;left:0;width:100%;height:var(--nav-h);
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:blur(14px) saturate(160%);-webkit-backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid var(--border);
  z-index:200;display:flex;align-items:center;justify-content:space-between;padding:0 5%;
}
.logo{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.05rem;letter-spacing:-.4px;text-decoration:none;color:var(--text)}
.logo span{background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-mark{
  width:30px;height:30px;border-radius:8px;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;font-family:var(--font-display);font-weight:700;font-size:.78rem;
  display:flex;align-items:center;justify-content:center;letter-spacing:-.02em;
}
.nav-links{display:flex;align-items:center;gap:.35rem;list-style:none}
.nav-links a{
  text-decoration:none;color:var(--muted);font-size:.85rem;font-weight:600;
  padding:.5rem .85rem;border-radius:999px;transition:color .2s,background-color .2s;
}
.nav-links a:hover{color:var(--text);background:var(--bg2)}
.nav-links a.active{color:var(--accent-text);background:var(--accent-light)}

.nav-right{display:flex;align-items:center;gap:.5rem}
.theme-toggle{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--border);
  background:var(--surface);color:var(--text);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:border-color .2s,transform .15s;flex-shrink:0;
}
.theme-toggle:hover{border-color:var(--accent)}
.theme-toggle:active{transform:scale(.92)}
.theme-toggle svg{width:18px;height:18px}
.theme-toggle .icon-sun{display:none}
:root[data-theme="dark"] .theme-toggle .icon-moon{display:none}
:root[data-theme="dark"] .theme-toggle .icon-sun{display:block}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .theme-toggle .icon-moon{display:none}
  :root:not([data-theme="light"]) .theme-toggle .icon-sun{display:block}
}

.nav-burger{
  display:none;width:38px;height:38px;border-radius:999px;border:1px solid var(--border);
  background:var(--surface);cursor:pointer;align-items:center;justify-content:center;flex-shrink:0;
}
.nav-burger span,.nav-burger::before,.nav-burger::after{
  content:'';display:block;width:16px;height:2px;background:var(--text);border-radius:2px;
  position:relative;transition:transform .2s,opacity .2s;
}
.nav-burger::before{position:absolute;transform:translateY(-6px)}
.nav-burger::after{position:absolute;transform:translateY(6px)}
.nav-burger.open span{opacity:0}
.nav-burger.open::before{transform:rotate(45deg)}
.nav-burger.open::after{transform:rotate(-45deg)}

/* =============================================
   SHARED SECTION LAYOUT
   ============================================= */
section{padding:100px 5% 96px;max-width:940px;margin:0 auto}
section:first-of-type{padding-top:calc(var(--nav-h) + 40px)}
.eyebrow{
  display:flex;align-items:center;gap:.65rem;font-size:.72rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent-text);margin-bottom:.8rem;
}
.eyebrow-num{
  font-family:'JetBrains Mono',monospace;color:var(--muted-2);font-weight:500;
  letter-spacing:0;font-size:.72rem;
}
.eyebrow-num::after{content:'';display:inline-block;width:18px;height:1px;background:var(--border);margin-left:.65rem;vertical-align:middle}
h2.sec-title{font-family:var(--font-display);font-size:1.9rem;font-weight:700;margin-bottom:2.75rem;letter-spacing:-.02em;line-height:1.2}
h2.sec-title .accent-dot{color:var(--accent)}

/* =============================================
   BUTTONS
   ============================================= */
.btn{padding:.8rem 1.6rem;border-radius:10px;font-weight:600;font-size:.875rem;text-decoration:none;transition:all .2s cubic-bezier(.2,.8,.2,1);cursor:pointer;border:none;display:inline-flex;align-items:center;gap:.4rem;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 6px 20px rgba(79,70,229,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(79,70,229,.38)}
.btn-outline{border:1.5px solid var(--border);color:var(--text);background:var(--surface)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-text);transform:translateY(-2px)}

/* =============================================
   HERO
   ============================================= */
#hero{
  min-height:calc(100vh - var(--nav-h));display:flex;flex-direction:column;justify-content:center;
  padding-top:var(--nav-h);position:relative;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:radial-gradient(var(--border) 1px, transparent 1px);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(ellipse 60% 55% at 30% 35%, black, transparent 75%);
  mask-image:radial-gradient(ellipse 60% 55% at 30% 35%, black, transparent 75%);
  opacity:.7;
}
.hero-glow{
  position:absolute;top:-10%;right:-10%;width:520px;height:520px;z-index:-1;pointer-events:none;
  background:radial-gradient(circle, color-mix(in srgb, var(--accent) 22%, transparent) 0%, transparent 70%);
  filter:blur(10px);
}
#hero h1{font-family:var(--font-display);font-size:clamp(2.6rem,6vw,4.4rem);font-weight:700;letter-spacing:-.03em;line-height:1.08;margin-bottom:1.4rem}
#hero h1 span{background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
#hero p{font-size:1.15rem;color:var(--muted);max-width:560px;margin-bottom:2.4rem;line-height:1.75}
.hero-btns{display:flex;gap:1rem;flex-wrap:wrap}

.scroll-cue{
  position:absolute;left:5%;bottom:2.5rem;display:flex;align-items:center;gap:.6rem;
  color:var(--muted-2);font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  text-decoration:none;transition:color .2s;
}
.scroll-cue:hover{color:var(--accent-text)}
.scroll-cue svg{width:14px;height:14px;animation:scrollCueBounce 2s ease-in-out infinite}
@keyframes scrollCueBounce{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}
@media (prefers-reduced-motion: reduce){.scroll-cue svg{animation:none}}
@media (max-width:640px){.scroll-cue{display:none}}

/* =============================================
   ABOUT
   ============================================= */
#about{background:var(--bg2);max-width:100%;padding:100px 5%}
.about-inner{max-width:940px;margin:0 auto;display:grid;grid-template-columns:auto 1fr;gap:3.5rem;align-items:start}
.avatar{
  width:168px;height:168px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-size:2.7rem;font-weight:700;color:#fff;
  flex-shrink:0;box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;
}
.avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:50%;z-index:1}
.avatar::after{
  content:'';position:absolute;inset:-6px;border-radius:50%;
  border:1.5px dashed var(--ring);
}
.about-text p{color:var(--muted);margin-bottom:1.1rem;line-height:1.8;font-size:1.02rem}
.about-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin:1.6rem 0}
.about-fact{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:.9rem 1.1rem}
.about-fact-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted-2);font-weight:700;margin-bottom:.3rem}
.about-fact-val{font-size:.9rem;font-weight:600;color:var(--text)}
.about-links{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.4rem}
.about-links a{
  color:var(--text);text-decoration:none;font-size:.85rem;font-weight:600;
  display:flex;align-items:center;gap:.4rem;
  padding:.55rem 1.05rem;border-radius:999px;
  background:var(--surface);border:1px solid var(--border);
  transition:all .2s;
}
.about-links a:hover{border-color:var(--accent);color:var(--accent-text);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.about-links a svg{width:16px;height:16px;flex-shrink:0}

/* =============================================
   EXPERIENCE TIMELINE
   ============================================= */
.timeline{display:flex;flex-direction:column;position:relative}
.tl-item{
  display:grid;grid-template-columns:130px 24px 1fr;gap:0 1.5rem;padding:0 0 2.75rem;
  position:relative;
}
.tl-item:last-child{padding-bottom:0}
.tl-meta{padding-top:.15rem}
.tl-date{color:var(--muted);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.35rem}
.tl-loc{color:var(--muted-2);font-size:.75rem}
.tl-rail{position:relative;display:flex;justify-content:center}
.tl-dot{
  width:12px;height:12px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px var(--accent-light);margin-top:6px;flex-shrink:0;z-index:1;
}
.tl-item:first-child .tl-dot{background:linear-gradient(135deg,var(--accent),var(--accent-2));width:14px;height:14px}
.tl-line{position:absolute;top:20px;bottom:-38px;width:2px;background:var(--border)}
.tl-item:last-child .tl-line{display:none}
.tl-content{padding-bottom:.25rem}
.tl-content h3{font-family:var(--font-display);font-size:1.1rem;font-weight:700;margin-bottom:.2rem;letter-spacing:-.01em}
.tl-content .company{color:var(--accent-text);font-size:.875rem;font-weight:600;margin-bottom:.9rem}
.tl-content ul{color:var(--muted);font-size:.9rem;padding-left:1.2rem}
.tl-content ul li{margin-bottom:.6rem;line-height:1.7}
.tl-content ul li strong{color:var(--text)}
.tl-content ul li::marker{color:var(--accent)}

/* =============================================
   SKILLS
   ============================================= */
#skills{background:var(--bg2);max-width:100%;padding:100px 5%}
#skills .inner{max-width:940px;margin:0 auto}
.skill-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.25rem}
.skill-group{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem 1.5rem;transition:border-color .2s,transform .2s,box-shadow .2s}
.skill-group:hover{border-color:var(--ring);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.skill-group h3{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:.9rem}
.tags{display:flex;flex-wrap:wrap;gap:.5rem}
.tag{background:var(--bg2);border:1px solid var(--border);padding:.32rem .78rem;border-radius:999px;font-size:.8rem;font-weight:500;color:var(--text)}
#skills .tag{background:var(--bg)}

/* =============================================
   PROJECTS
   ============================================= */
.proj-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:1.5rem}
.proj-card{
  border:1px solid var(--border);border-radius:var(--radius);padding:1.9rem;
  transition:box-shadow .25s,transform .25s,border-color .25s;
  background:var(--surface);position:relative;overflow:hidden;
}
.proj-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.proj-card:hover::before{transform:scaleX(1)}
.proj-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--ring)}
.proj-icon{
  width:46px;height:46px;background:var(--accent-light);border-radius:12px;
  display:flex;align-items:center;justify-content:center;color:var(--accent-text);
  margin-bottom:1.2rem;border:1px solid var(--ring);
}
.proj-icon svg{width:22px;height:22px}
.proj-card h3{font-family:var(--font-display);font-size:1.1rem;font-weight:700;margin-bottom:.55rem;letter-spacing:-.01em}
.proj-card p{color:var(--muted);font-size:.875rem;margin-bottom:1rem;line-height:1.65}
.proj-card .tags{margin-top:.7rem}
.proj-link{color:var(--accent-text);font-size:.85rem;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:.3rem;margin-top:.9rem;transition:gap .2s}
.proj-link:hover{gap:.5rem}

/* =============================================
   RECENT WRITING (homepage section)
   ============================================= */
#recent-posts{padding:100px 5%;max-width:940px;margin:0 auto}
.post-list{display:flex;flex-direction:column}
.post-item{
  padding:1.6rem 0;border-bottom:1px solid var(--border);
  display:grid;grid-template-columns:110px 1fr;gap:1.5rem;
  align-items:start;text-decoration:none;color:var(--text);
  transition:padding-left .2s;
}
.post-item:hover{padding-left:.4rem}
.post-item:last-child{border-bottom:none}
.post-item:hover .post-item-title{color:var(--accent-text)}
.post-item-date{color:var(--muted);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding-top:.25rem}
.post-item-title{font-size:1.05rem;font-weight:700;margin-bottom:.35rem;transition:color .2s;letter-spacing:-.01em}
.post-item-excerpt{color:var(--muted);font-size:.875rem;line-height:1.65;margin-bottom:.6rem}
.post-item-tags{display:flex;flex-wrap:wrap;gap:.4rem}
.post-item-tags .tag{font-size:.73rem;padding:.15rem .6rem}
.view-all-link{
  display:inline-flex;align-items:center;gap:.35rem;margin-top:1.9rem;
  color:var(--accent-text);font-weight:600;font-size:.875rem;text-decoration:none;
  transition:gap .2s;
}
.view-all-link:hover{gap:.55rem}

/* =============================================
   EDUCATION
   ============================================= */
.edu-list{display:flex;flex-direction:column}
.edu-item{display:grid;grid-template-columns:130px 1fr;gap:1.5rem;padding:1.6rem 0;border-bottom:1px solid var(--border)}
.edu-item:last-child{border-bottom:none}
.edu-year{color:var(--muted);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding-top:.15rem}
.edu-content h3{font-family:var(--font-display);font-size:1.05rem;font-weight:700;margin-bottom:.25rem;letter-spacing:-.01em}
.edu-content .inst{color:var(--accent-text);font-size:.875rem;font-weight:600;margin-bottom:.3rem}
.edu-content p{color:var(--muted);font-size:.875rem}
.cert-badge{display:inline-block;background:var(--accent-light);color:var(--accent-text);font-size:.72rem;font-weight:600;padding:.28rem .7rem;border-radius:999px;margin-right:.4rem;margin-top:.3rem;border:1px solid var(--ring)}

/* =============================================
   CONTACT
   ============================================= */
#contact{background:var(--bg2);max-width:100%;padding:100px 5% 110px}
#contact .inner{max-width:940px;margin:0 auto}
.contact-lead{color:var(--muted);max-width:520px;font-size:1.02rem;line-height:1.7}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1rem;margin-top:2rem}
.contact-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.3rem 1.5rem;display:flex;align-items:center;gap:1rem;
  text-decoration:none;color:var(--text);transition:border-color .2s,box-shadow .2s,transform .2s;
}
.contact-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.contact-icon{
  width:42px;height:42px;border-radius:11px;flex-shrink:0;
  background:var(--accent-light);display:flex;align-items:center;justify-content:center;
  color:var(--accent-text);border:1px solid var(--ring);
}
.contact-icon svg{width:20px;height:20px}
.contact-label{font-size:.72rem;color:var(--muted);font-weight:600;margin-bottom:.2rem;text-transform:uppercase;letter-spacing:.05em}
.contact-val{font-size:.9rem;font-weight:700}

/* =============================================
   FOOTER
   ============================================= */
footer{text-align:center;padding:2.5rem 5%;color:var(--muted);font-size:.82rem;border-top:1px solid var(--border);background:var(--bg)}

/* =============================================
   BLOG LISTING PAGE
   ============================================= */
.blog-page{padding:calc(var(--nav-h) + 64px) 5% 100px;max-width:880px;margin:0 auto}
.blog-page h1{font-family:var(--font-display);font-size:2.1rem;font-weight:700;margin-bottom:.6rem;letter-spacing:-.02em}
.blog-page .subtitle{color:var(--muted);margin-bottom:1rem;font-size:.98rem;max-width:560px;line-height:1.7}

/* Tabs */
.tab-bar{display:flex;gap:.5rem;margin-top:2.5rem;margin-bottom:2.5rem;border-bottom:1px solid var(--border)}
.tab-btn{
  background:none;border:none;cursor:pointer;font-family:inherit;
  font-size:.9rem;font-weight:600;color:var(--muted);
  padding:.85rem .25rem;margin-right:1.75rem;position:relative;
  display:flex;align-items:center;gap:.5rem;transition:color .2s;
}
.tab-btn::after{
  content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--accent);transform:scaleX(0);transition:transform .2s ease;
}
.tab-btn:hover{color:var(--text)}
.tab-btn.active{color:var(--text)}
.tab-btn.active::after{transform:scaleX(1)}
.tab-count{
  background:var(--bg2);border:1px solid var(--border);color:var(--muted);
  font-size:.72rem;font-weight:700;padding:.1rem .5rem;border-radius:999px;
}
.tab-btn.active .tab-count{background:var(--accent-light);color:var(--accent-text);border-color:var(--ring)}
.tab-panel[hidden]{display:none}

.blog-list{display:flex;flex-direction:column}
.blog-list-item{
  padding:1.85rem 0;border-bottom:1px solid var(--border);
  text-decoration:none;color:var(--text);display:block;
  transition:padding-left .2s;
}
.blog-list-item:last-child{border-bottom:none}
.blog-list-item:hover{padding-left:.4rem}
.blog-list-item:hover .blog-list-title{color:var(--accent-text)}
.blog-list-meta{display:flex;align-items:center;gap:.75rem;margin-bottom:.6rem}
.blog-list-date{color:var(--muted);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}
.blog-list-title{font-family:var(--font-display);font-size:1.3rem;font-weight:700;margin-bottom:.5rem;transition:color .2s;line-height:1.35;letter-spacing:-.01em}
.blog-list-excerpt{color:var(--muted);font-size:.9rem;line-height:1.7;margin-bottom:.8rem}
.blog-list-tags{display:flex;flex-wrap:wrap;gap:.4rem}
.blog-list-tags .tag{font-size:.73rem;padding:.15rem .6rem}
.no-posts{color:var(--muted);text-align:center;padding:4rem 0;font-size:.95rem;border:1px dashed var(--border);border-radius:var(--radius)}

/* LinkedIn posts — dedicated compact card grid (not stretched blog rows) */
.li-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}
.li-card{
  display:flex;flex-direction:column;gap:.85rem;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.35rem 1.45rem;text-decoration:none;color:var(--text);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.li-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--ring)}
.li-card-top{display:flex;align-items:center;justify-content:space-between;gap:.75rem}
.li-badge{
  width:30px;height:30px;border-radius:8px;flex-shrink:0;
  background:#0a66c2;color:#fff;display:flex;align-items:center;justify-content:center;
}
.li-badge svg{width:17px;height:17px}
.li-card-date{font-size:.72rem;color:var(--muted-2);font-weight:600;text-transform:uppercase;letter-spacing:.05em}
.li-card-topic{font-family:var(--font-display);font-size:1.02rem;font-weight:700;line-height:1.45;letter-spacing:-.01em}
.li-card-cta{
  font-size:.8rem;font-weight:600;color:var(--accent-text);
  display:inline-flex;align-items:center;gap:.3rem;margin-top:auto;transition:gap .2s;
}
.li-card:hover .li-card-cta{gap:.45rem}

/* =============================================
   READING PROGRESS BAR
   ============================================= */
.progress-bar-wrap{
  position:fixed;top:var(--nav-h);left:0;right:0;
  height:3px;background:transparent;z-index:150;pointer-events:none;
}
.progress-bar{
  height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));
  width:0%;transition:width .1s linear;
}

/* =============================================
   BLOG POST PAGE
   ============================================= */
.post-wrap{
  padding-top:calc(var(--nav-h) + 56px);
  padding-bottom:90px;
}
.post-container{max-width:740px;margin:0 auto;padding:0 5%}

/* Breadcrumb */
.post-breadcrumb{
  display:flex;align-items:center;gap:.5rem;
  font-size:.8rem;color:var(--muted);margin-bottom:2.75rem;
  flex-wrap:wrap;
}
.post-breadcrumb a{color:var(--muted);text-decoration:none;transition:color .2s}
.post-breadcrumb a:hover{color:var(--accent-text)}
.post-breadcrumb span{color:var(--border)}
.breadcrumb-current{color:var(--text);font-weight:500}

/* Post header */
.post-header{margin-bottom:3.2rem;padding-bottom:2.75rem;border-bottom:1px solid var(--border)}
.post-header-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:1.2rem}
.tag-accent{background:var(--accent-light);color:var(--accent-text);border-color:var(--ring) !important}
.post-header h1{
  font-family:var(--font-display);font-size:clamp(1.85rem,4vw,2.75rem);font-weight:700;
  letter-spacing:-.02em;line-height:1.2;margin-bottom:1.2rem;
  color:var(--text);
}
.post-meta-row{display:flex;align-items:center;gap:.6rem;color:var(--muted);font-size:.875rem}
.post-date{font-weight:500}
.meta-dot{color:var(--border);font-size:1.1rem}
.post-read-time{font-weight:500}

/* =============================================
   POST BODY — PREMIUM READING TYPOGRAPHY
   ============================================= */
.post-body{
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--text);
}
.post-body > * + *{margin-top:1.5rem}

.post-body h2{
  font-size:1.45rem;font-weight:800;color:var(--text);
  margin-top:3rem;margin-bottom:.9rem;
  letter-spacing:-.03em;line-height:1.3;
  padding-top:1.5rem;border-top:1px solid var(--border);
}
.post-body h3{
  font-size:1.18rem;font-weight:700;color:var(--text);
  margin-top:2.5rem;margin-bottom:.7rem;
  letter-spacing:-.02em;
}
.post-body h4{
  font-size:.78rem;font-weight:700;color:var(--muted);
  margin-top:2rem;margin-bottom:.5rem;
  text-transform:uppercase;letter-spacing:.08em;
}
.post-body p{margin-bottom:1.4rem;line-height:1.85;color:var(--text)}
.post-body ul,.post-body ol{padding-left:1.6rem;margin-bottom:1.4rem}
.post-body li{margin-bottom:.5rem;line-height:1.75}
.post-body strong{font-weight:700;color:var(--text)}
.post-body em{font-style:italic}
.post-body a{
  color:var(--accent-text);
  text-decoration:underline;
  text-decoration-color:var(--ring);
  text-underline-offset:3px;
  transition:text-decoration-color .2s;
}
.post-body a:hover{text-decoration-color:var(--accent)}

/* Inline code */
.post-body :not(pre) > code{
  background:var(--bg2);border:1px solid var(--border);
  border-radius:5px;padding:.1em .45em;
  font-size:.875em;
  font-family:'JetBrains Mono','Fira Code','SF Mono',monospace;
  color:var(--text);font-weight:500;
}

/* Code blocks */
.post-body pre{
  background:var(--code-bg);
  border-radius:12px;
  padding:1.5rem 1.75rem;
  overflow-x:auto;
  margin:2rem 0;
  border:1px solid var(--border);
  box-shadow:var(--shadow-md);
}
.post-body pre code{
  background:none;border:none;padding:0;
  font-size:.875rem;color:#e2e8f0;
  font-family:'JetBrains Mono','Fira Code','SF Mono',monospace;
  line-height:1.75;font-weight:400;
}

/* Blockquote */
.post-body blockquote{
  border-left:4px solid var(--accent);
  padding:1rem 1.5rem;margin:2rem 0;
  background:var(--accent-light);
  border-radius:0 10px 10px 0;
}
.post-body blockquote p{
  color:var(--accent-text);font-style:italic;margin-bottom:0;
}

/* Images */
.post-body img{
  max-width:100%;border-radius:12px;margin:2rem 0;
  box-shadow:var(--shadow-md);display:block;
}

/* HR */
.post-body hr{border:none;border-top:1px solid var(--border);margin:3rem 0}

/* Tables */
.post-body table{
  width:100%;border-collapse:collapse;margin:2rem 0;
  font-size:.875rem;border-radius:10px;overflow:hidden;
  border:1px solid var(--border);
}
.post-body th{
  background:var(--bg2);font-weight:700;padding:.75rem 1rem;
  border:1px solid var(--border);text-align:left;
  font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);
}
.post-body td{
  padding:.75rem 1rem;border:1px solid var(--border);
  vertical-align:top;line-height:1.6;
}
.post-body tr:nth-child(even) td{background:var(--bg2)}

/* =============================================
   AUTHOR CARD
   ============================================= */
.post-author-card{
  display:flex;gap:1.5rem;align-items:flex-start;
  padding:1.85rem 2.1rem;background:var(--bg2);
  border-radius:16px;margin-top:3.75rem;
  border:1px solid var(--border);
}
.author-avatar-sm{
  width:54px;height:54px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:flex;align-items:center;justify-content:center;
  font-size:1.05rem;font-weight:800;color:#fff;
  flex-shrink:0;
}
.author-name{font-weight:700;font-size:.975rem;margin-bottom:.1rem}
.author-title{font-size:.78rem;color:var(--muted);margin-bottom:.6rem}
.author-bio{font-size:.875rem;color:var(--muted);line-height:1.65;margin-bottom:.75rem}
.author-social{display:flex;gap:.9rem}
.author-social a{
  color:var(--accent-text);text-decoration:none;font-size:.82rem;font-weight:600;
  transition:opacity .2s;
}
.author-social a:hover{opacity:.75;text-decoration:underline}

/* =============================================
   SHARE SECTION
   ============================================= */
.post-share{
  margin-top:1.5rem;padding:1.85rem 2.1rem;
  border:1px solid var(--border);border-radius:16px;
  background:var(--surface);
}
.post-share-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}
.post-share-title{font-size:1rem;font-weight:700;margin-bottom:.2rem}
.post-share-desc{color:var(--muted);font-size:.85rem}
.share-btns{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center}
.copy-confirm{
  color:#059669;font-size:.8rem;margin-top:.75rem;
  font-weight:600;display:flex;align-items:center;gap:.3rem;
}

/* =============================================
   POST FOOTER NAV
   ============================================= */
.post-footer-nav{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border)}
.post-back-link{
  color:var(--muted);text-decoration:none;font-size:.875rem;
  font-weight:500;transition:color .2s;display:inline-flex;align-items:center;gap:.3rem;
}
.post-back-link:hover{color:var(--accent-text)}

/* =============================================
   RESPONSIVE
   ============================================= */
@media(max-width:860px){
  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:.15rem;
    background:var(--bg);border-bottom:1px solid var(--border);
    padding:.75rem 5% 1.25rem;
    transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity .18s ease,transform .18s ease,visibility .18s;
    box-shadow:var(--shadow-md);
  }
  .nav-links.open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-links a{padding:.75rem 1rem;font-size:.9rem;border-radius:var(--radius-sm)}
  .nav-burger{display:flex}
}
@media(max-width:640px){
  section{padding:80px 6% 76px}
  #hero{min-height:auto;padding-bottom:60px}
  .about-inner{grid-template-columns:1fr}
  .avatar{width:120px;height:120px;font-size:2rem}
  .tl-item{grid-template-columns:20px 1fr;gap:0 1rem}
  .tl-meta{grid-column:1 / -1;display:flex;gap:.6rem;align-items:baseline;padding-top:0;order:-1;margin-bottom:.5rem}
  .tl-rail{grid-row:2}
  .edu-item{grid-template-columns:1fr}
  .post-item{grid-template-columns:1fr}
  .post-item-date{padding-top:0;margin-bottom:.2rem}
  .post-author-card{flex-direction:column}
  .post-share-inner{flex-direction:column;align-items:flex-start}
  .li-grid{grid-template-columns:1fr}
}