/* ============================================================
   Portfolio — styles
   ============================================================ */
:root{
  --bg:#0b0f14;
  --bg-2:#0e141d;
  --panel:#121a26;
  --panel-2:#16202e;
  --line:#1e2b3c;
  --text:#e6eef7;
  --muted:#94a7bd;
  --muted-2:#6b7e94;
  --cyan:#22d3ee;
  --purple:#a855f7;
  --green:#34d399;
  --amber:#fbbf24;
  --grad:linear-gradient(120deg,#22d3ee,#a855f7);
  --radius:16px;
  --max:1120px;
  --shadow:0 20px 50px -20px rgba(0,0,0,.7);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Noto Sans",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font);line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.15;margin:0;letter-spacing:-.02em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
code{font-family:var(--mono);font-size:.85em;background:#0a1017;border:1px solid var(--line);padding:.1em .4em;border-radius:6px;color:#9fe8f5}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;background:rgba(11,15,20,.72);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.nav.scrolled{border-bottom-color:var(--line);background:rgba(11,15,20,.9)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:-.02em}
.brand-mark{font-family:var(--mono);color:var(--cyan);font-weight:700}
.brand-logo{width:22px;height:22px;display:inline-flex;flex:none}
.brand-logo svg{width:100%;height:100%;fill:none;stroke:var(--cyan);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nav-links{display:flex;align-items:center;gap:26px;font-size:.95rem;color:var(--muted)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-cta{background:var(--grad);color:#04121a!important;font-weight:700;padding:9px 16px;border-radius:999px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:.25s}

/* ---------- hero ---------- */
.hero{position:relative;padding:150px 0 90px;overflow:hidden}
.hero-inner{max-width:820px;position:relative;z-index:2}
.hero-glow{position:absolute;top:-220px;left:50%;transform:translateX(-50%);width:900px;height:620px;
  background:radial-gradient(closest-side,rgba(34,211,238,.20),transparent 70%),
             radial-gradient(closest-side at 70% 60%,rgba(168,85,247,.18),transparent 70%);
  filter:blur(12px);z-index:1;pointer-events:none}
.pill{display:inline-flex;align-items:center;gap:9px;font-size:.86rem;color:var(--muted);
  background:var(--panel);border:1px solid var(--line);padding:7px 14px;border-radius:999px;margin-bottom:26px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(52,211,153,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 9px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
.hero h1{font-size:clamp(2.1rem,5.4vw,3.6rem);font-weight:800;margin-bottom:22px}
.lede{font-size:clamp(1.02rem,1.6vw,1.18rem);color:var(--muted);max-width:660px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px 34px;color:var(--muted-2);font-size:.92rem}
.hero-meta strong{color:var(--text);font-size:1.05rem;margin-right:5px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.98rem;
  padding:13px 24px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .25s,background .25s,border-color .25s;font-family:inherit}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--grad);color:#04121a;box-shadow:0 12px 30px -12px rgba(34,211,238,.6)}
.btn-ghost{background:var(--panel);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:#2c405a;background:var(--panel-2)}

/* ---------- sections ---------- */
.section{padding:92px 0;position:relative}
.section.alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:680px;margin-bottom:52px}
.kicker{color:var(--cyan);font-weight:700;text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;margin-bottom:14px}
.sec-head h2{font-size:clamp(1.6rem,3.2vw,2.35rem);margin-bottom:14px}
.sec-sub{color:var(--muted)}

/* ---------- services ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-5px);border-color:#2c405a;box-shadow:var(--shadow)}
.icon{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,rgba(34,211,238,.16),rgba(168,85,247,.16));
  border:1px solid var(--line);display:grid;place-items:center;margin-bottom:18px}
.icon svg{width:24px;height:24px;fill:none;stroke:var(--cyan);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:1.12rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:16px}
.tags{display:flex;flex-wrap:wrap;gap:7px}
.tags li{font-size:.76rem;color:#9fe8f5;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.22);padding:4px 10px;border-radius:999px}

/* ---------- work ---------- */
.work{display:flex;flex-direction:column;gap:30px}
.work-item{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:30px}
.work-item.reverse .work-media{order:2}
.work-media{position:relative;border-radius:16px;min-height:260px;display:grid;place-items:center;padding:24px;
  background:radial-gradient(120% 120% at 30% 0%,rgba(34,211,238,.14),transparent 60%),#0a1017;border:1px solid var(--line);overflow:hidden}
.work-media[data-tone="purple"]{background:radial-gradient(120% 120% at 30% 0%,rgba(168,85,247,.16),transparent 60%),#0a1017}
.work-media[data-tone="green"]{background:radial-gradient(120% 120% at 30% 0%,rgba(52,211,153,.16),transparent 60%),#0a1017}
.work-media[data-tone="amber"]{background:radial-gradient(120% 120% at 30% 0%,rgba(251,191,36,.16),transparent 60%),#0a1017}
.work-badge{position:absolute;top:14px;left:14px;font-size:.72rem;color:var(--muted);background:rgba(11,15,20,.8);
  border:1px solid var(--line);padding:5px 11px;border-radius:999px}
.work-body h3{font-size:1.28rem;margin-bottom:12px}
.work-body p{color:var(--muted);font-size:.95rem;margin-bottom:14px}
.bullets{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.bullets li{position:relative;padding-left:22px;color:var(--muted);font-size:.92rem}
.bullets li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--grad)}
.work-links{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:.88rem}
.work-links a{color:var(--cyan);font-weight:600;border-bottom:1px solid transparent}
.work-links a:hover{border-bottom-color:var(--cyan)}
.tag-static{color:var(--muted-2);font-size:.8rem}

/* mock UI inside work cards */
.mock{width:100%;max-width:300px;background:#0d1520;border:1px solid #24344a;border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow)}
.mock-bar{display:flex;gap:5px;margin-bottom:4px}
.mock-bar i{width:9px;height:9px;border-radius:50%;background:#2a3b52}
.mock-row,.mock-line{height:9px;border-radius:5px;background:#22334a}
.mock-row.short,.mock-line.short{width:55%}
.mock-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:4px}
.mock-grid div{height:34px;border-radius:8px;background:linear-gradient(135deg,rgba(34,211,238,.25),rgba(168,85,247,.2))}
.mock-phone{max-width:170px;border-radius:22px;padding:16px 12px;gap:9px;align-items:center}
.mock-notch{width:52px;height:6px;border-radius:5px;background:#2a3b52;margin-bottom:6px}
.mock-phone .mock-line{width:100%}
.mock-phone .mock-line.short{width:65%}
.mock-btn{width:100%;text-align:center;font-size:.72rem;font-weight:700;color:#04121a;background:var(--grad);border-radius:8px;padding:8px 0;margin-top:4px}
.mock-btn.ghost{background:transparent;color:var(--cyan);border:1px solid #2a4257}
.mock-hero{height:56px;border-radius:10px;background:linear-gradient(135deg,rgba(52,211,153,.3),rgba(34,211,238,.15))}
.mock-cols{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
.mock-cols div{height:40px;border-radius:8px;background:#22334a}
.mock-list{display:flex;flex-direction:column;gap:8px;margin-top:4px}
.mock-list div{height:22px;border-radius:6px;background:#22334a}
.mock-list div:nth-child(2){background:#2a3d57}

/* ---------- portfolio gallery ---------- */
.hero-sm{padding:120px 0 56px}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:26px}
.shot{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:18px;
  display:flex;flex-direction:column;gap:18px;transition:transform .25s,border-color .25s,box-shadow .25s}
.shot:hover{transform:translateY(-5px);border-color:#2c405a;box-shadow:var(--shadow)}
.shot-frame{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#0a1017}
.shot-bar{display:flex;align-items:center;gap:6px;padding:9px 12px;background:#0e1520;border-bottom:1px solid var(--line)}
.shot-bar i{width:9px;height:9px;border-radius:50%;background:#2a3b52}
.shot-bar span{margin-left:8px;font-size:.74rem;color:var(--muted-2);font-family:var(--mono)}
.shot-frame img{display:block;width:100%}
.shot figcaption h3{font-size:1.05rem;margin-bottom:8px}
.shot figcaption p{color:var(--muted);font-size:.92rem;margin-bottom:12px}
@media (max-width:760px){ .gallery{grid-template-columns:1fr} }

.subhead{display:flex;align-items:center;gap:16px;margin:46px 0 24px}
.subhead-line{flex:1;height:1px;background:var(--line)}
.subhead h3{font-size:1.02rem;color:var(--muted);font-weight:600;white-space:nowrap}
.subhead h3 em{color:var(--cyan);font-style:normal}

.projects{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.proj{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  display:flex;flex-direction:column;transition:transform .25s,border-color .25s,box-shadow .25s}
.proj:hover{transform:translateY(-4px);border-color:#2c405a;box-shadow:var(--shadow)}
.section-top{padding-top:120px}
.proj img{display:block;width:100%;background:#0a1017;aspect-ratio:16/10;object-fit:cover;object-position:top}
.proj-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:6px}
.proj-cat{font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--cyan)}
.proj h3{font-size:.98rem;line-height:1.3}
.proj p{color:var(--muted-2);font-size:.83rem}

/* pagination */
.pager{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin-top:36px}
.pager button{min-width:44px;height:44px;padding:0 15px;border-radius:10px;border:1px solid var(--line);
  background:var(--panel);color:var(--text);font-family:inherit;font-size:.9rem;font-weight:600;cursor:pointer;
  transition:border-color .2s,background .2s,transform .15s}
.pager button:hover:not(:disabled){border-color:#2c405a;background:var(--panel-2);transform:translateY(-2px)}
.pager button.active{background:var(--grad);color:#04121a;border-color:transparent}
.pager button:disabled{opacity:.4;cursor:not-allowed}

/* ---------- live systems ---------- */
.systems{display:flex;flex-direction:column;gap:26px}
.system{display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:26px;
  transition:transform .25s,border-color .25s,box-shadow .25s}
.system:hover{transform:translateY(-4px);border-color:#2c405a;box-shadow:var(--shadow)}
.system.reverse .system-shot{order:2}
.system-shot{display:flex;flex-direction:column;gap:10px;min-width:0}
.system-shot > img{width:100%;border-radius:12px;border:1px solid var(--line);background:#0a1017;display:block}
.system-thumbs{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.system-thumbs img{width:100%;border-radius:10px;border:1px solid var(--line);background:#0a1017;display:block}
.system-tag{display:inline-block;font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;
  color:var(--cyan);font-weight:700;margin-bottom:12px}
.system-body h3{font-size:1.22rem;margin-bottom:12px}
.system-body p{color:var(--muted);font-size:.95rem;margin-bottom:16px}
.system-stats{display:flex;flex-wrap:wrap;gap:14px 26px;margin-bottom:14px}
.system-stats li{font-size:.8rem;color:var(--muted-2)}
.system-stats strong{display:block;font-size:1.12rem;color:var(--text);white-space:nowrap}
.system-link{color:var(--cyan);font-weight:600;font-size:.9rem;border-bottom:1px solid transparent}
.system-link:hover{border-bottom-color:var(--cyan)}

/* ---------- reviews ---------- */
.reviews{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.review{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;display:flex;flex-direction:column;gap:14px;
  transition:transform .25s,border-color .25s,box-shadow .25s}
.review:hover{transform:translateY(-5px);border-color:#2c405a;box-shadow:var(--shadow)}
.stars{color:var(--amber);letter-spacing:2px;font-size:1rem;line-height:1}
.review blockquote{margin:0;color:var(--text);font-size:.97rem;line-height:1.6}
.review figcaption{display:flex;flex-direction:column;gap:2px;margin-top:auto;padding-top:4px}
.review figcaption strong{font-size:.92rem;color:var(--text)}
.review figcaption span{color:var(--muted-2);font-size:.82rem}
.reviews-cta{text-align:center;margin-top:34px}

/* ---------- process ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;counter-reset:s}
.steps li{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px}
.steps span{font-family:var(--mono);font-size:1.5rem;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:block;margin-bottom:12px}
.steps h3{font-size:1.05rem;margin-bottom:8px}
.steps p{color:var(--muted);font-size:.92rem}

/* ---------- about ---------- */
.about{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.about-text h2{margin-bottom:18px;font-size:clamp(1.5rem,3vw,2.1rem)}
.about-text p{color:var(--muted);margin-bottom:16px}
.about-text .btn{margin-top:10px}
.about-skills h3{font-size:1.05rem;margin-bottom:18px}
.skill-groups{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.skill-groups h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--cyan);margin-bottom:10px}
.skill-groups li{color:var(--muted);font-size:.92rem;padding:4px 0;border-bottom:1px dashed var(--line)}

/* ---------- contact ---------- */
.contact{background:
  radial-gradient(90% 120% at 50% 0%,rgba(34,211,238,.10),transparent 60%),var(--bg)}
.contact-inner{max-width:760px;text-align:center;margin:0 auto}
.contact h2{font-size:clamp(1.7rem,3.4vw,2.5rem);margin-bottom:14px}
.contact .sec-sub{margin-bottom:36px}
.form{text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:16px}
.form input,.form textarea{width:100%;margin-top:8px;background:#0a1017;border:1px solid var(--line);color:var(--text);
  border-radius:10px;padding:12px 14px;font-family:inherit;font-size:.95rem;resize:vertical;transition:border-color .2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--cyan)}
.form .btn{width:100%;justify-content:center}
.form-note{margin-top:12px;font-size:.88rem;color:var(--green);min-height:1.2em;text-align:center}
.contact-links{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:30px}
.contact-links a{display:inline-flex;align-items:center;gap:9px;background:var(--panel);border:1px solid var(--line);
  padding:11px 18px;border-radius:999px;font-size:.92rem;transition:border-color .2s,transform .15s}
.contact-links a:hover{border-color:#2c405a;transform:translateY(-2px)}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);padding:28px 0;background:var(--bg)}
.footer-inner{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--muted-2);font-size:.86rem}

/* ---------- reveal (only hides when JS is active; safe without JS) ---------- */
html.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
html.js .reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .work-item{grid-template-columns:1fr;gap:24px}
  .work-item.reverse .work-media{order:0}
  .about{grid-template-columns:1fr;gap:34px}
  .system{grid-template-columns:1fr;gap:22px}
  .system.reverse .system-shot{order:0}
}
@media (max-width:760px){
  .nav-links{position:fixed;inset:66px 0 auto 0;flex-direction:column;align-items:flex-start;gap:0;
    background:rgba(11,15,20,.98);border-bottom:1px solid var(--line);padding:10px 22px 22px;transform:translateY(-130%);transition:transform .3s;backdrop-filter:blur(14px)}
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-cta{text-align:center;margin-top:12px;border-bottom:0!important}
  .nav-toggle{display:flex}
  .nav.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav.open span:nth-child(2){opacity:0}
  .nav.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .section{padding:72px 0}
  .hero{padding:120px 0 70px}
  .form .row{grid-template-columns:1fr}
  .skill-groups{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html.js .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- projects toolbar (filter + view switch) ---------- */
.toolbar{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;margin-bottom:26px}
.filters{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:.82rem;font-weight:600;color:var(--muted);background:var(--panel);border:1px solid var(--line);padding:8px 15px;border-radius:999px;transition:.2s}
.chip:hover{color:var(--text);border-color:#2c405a}
.chip.on{background:var(--grad);color:#04121a;border-color:transparent}
.views{display:flex;gap:6px;background:var(--panel);border:1px solid var(--line);padding:5px;border-radius:12px}
.vbtn{display:inline-flex;align-items:center;gap:7px;font-size:.82rem;font-weight:600;color:var(--muted);padding:7px 14px;border-radius:8px;transition:.2s}
.vbtn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.vbtn:hover{color:var(--text)}
.vbtn.on{background:var(--panel-2);color:var(--cyan)}

.proj-media{position:relative;display:block}
.proj-num{position:absolute;top:12px;right:14px;font-family:var(--mono);font-size:.8rem;font-weight:700;color:rgba(255,255,255,.5)}
.proj-media:hover img{filter:brightness(1.12)}

/* list view */
.projects.list{grid-template-columns:1fr;gap:14px}
.projects.list .proj{flex-direction:row}
.projects.list .proj-media{flex:0 0 250px;overflow:hidden}
.projects.list .proj-media img{height:100%;object-fit:cover}
.projects.list .proj-body{padding:18px 22px;justify-content:center}
@media (max-width:700px){ .projects.list .proj-media{flex:0 0 120px} }

/* pager links */
.pager .pg{min-width:44px;height:44px;display:inline-grid;place-items:center;padding:0 15px;border-radius:10px;
  border:1px solid var(--line);background:var(--panel);color:var(--text);font-size:.9rem;font-weight:600;transition:.2s}
.pager .pg:hover{border-color:#2c405a;background:var(--panel-2);transform:translateY(-2px)}
.pager .pg.on{background:var(--grad);color:#04121a;border-color:transparent}
.pager .pg.off{opacity:.4;cursor:not-allowed}
.pager .pg.off:hover{transform:none;background:var(--panel);border-color:var(--line)}

/* ---------- blog ---------- */
.posts{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.post-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden;
  display:flex;flex-direction:column;transition:transform .25s,border-color .25s,box-shadow .25s}
.post-card:hover{transform:translateY(-5px);border-color:#2c405a;box-shadow:var(--shadow)}
.post-cover{display:block;overflow:hidden;background:#0a1017}
.post-cover img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-featured{display:grid;grid-template-columns:1.12fr 1fr;background:var(--panel);border:1px solid var(--line);
  border-radius:22px;overflow:hidden;margin-bottom:30px;transition:border-color .25s,box-shadow .25s}
.post-featured:hover{border-color:#2c405a;box-shadow:var(--shadow)}
.post-featured-cover{display:block;overflow:hidden;background:#0a1017}
.post-featured-cover img{display:block;width:100%;height:100%;min-height:300px;object-fit:cover;transition:transform .5s}
.post-featured:hover .post-featured-cover img{transform:scale(1.03)}
.post-featured-body{padding:34px 36px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.post-featured-body h3{font-size:1.45rem;line-height:1.28}
.post-featured-body p{color:var(--muted);font-size:.98rem}
.post-read{align-self:flex-start;margin-top:6px}
@media (max-width:820px){ .post-featured{grid-template-columns:1fr} .post-featured-cover img{min-height:210px} }
.post-cat{font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--cyan)}
.post-card h3{font-size:1.06rem;line-height:1.35}
.post-card h3 a{background-image:linear-gradient(currentColor,currentColor);background-size:0 1px;background-repeat:no-repeat;background-position:0 100%;transition:background-size .25s}
.post-card:hover h3 a{background-size:100% 1px}
.post-card p{color:var(--muted);font-size:.92rem}
.post-meta{margin-top:auto;color:var(--muted-2);font-size:.78rem}
.chip small{opacity:.6}
.blog-cta{margin-top:44px;text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:32px 24px}
.blog-cta h3{font-size:1.2rem;margin-bottom:8px}
.blog-cta p{color:var(--muted);margin-bottom:18px}

/* single article */
.article-wrap{max-width:820px}
.crumbs{font-size:.82rem;color:var(--muted-2);margin-bottom:18px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--text)}
.crumbs span{margin:0 6px}
.article h1{font-size:clamp(1.6rem,3.4vw,2.3rem);margin:12px 0 12px}
.article-meta{color:var(--muted-2);font-size:.84rem;margin-bottom:26px}
.article-cover{margin:0 0 30px;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#0a1017}
.article-cover img{display:block;width:100%}
.article-body > p:first-of-type{font-size:1.12rem;color:var(--text)}
.article-body{color:var(--muted);font-size:1.02rem;line-height:1.75}
.article-body h2{color:var(--text);font-size:1.22rem;margin:30px 0 10px}
.article-body p{margin-bottom:16px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body ol{list-style:decimal}
.article-body ul{list-style:disc}
.article-body blockquote{margin:22px 0;padding:14px 20px;border-left:3px solid var(--cyan);
  background:rgba(34,211,238,.06);border-radius:0 10px 10px 0;color:var(--text);font-style:italic}
.article-cta{margin-top:36px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px 24px;text-align:center}
.article-cta h3{font-size:1.12rem;margin-bottom:8px}
.article-cta p{color:var(--muted);font-size:.92rem;margin-bottom:16px}
.related{margin-top:52px}
.related h2{font-size:1.15rem;margin-bottom:18px}

/* ---------- AI assistant chat ---------- */
.chat-fab{position:fixed;right:22px;bottom:22px;width:58px;height:58px;border-radius:50%;border:0;cursor:pointer;
  background:var(--grad);display:grid;place-items:center;box-shadow:0 16px 40px -12px rgba(34,211,238,.7);z-index:60;transition:transform .2s,background .2s}
.chat-fab:hover{transform:translateY(-3px) scale(1.03)}
.chat-fab svg{width:26px;height:26px;fill:none;stroke:#04121a;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.chat-fab.open{background:var(--panel);box-shadow:var(--shadow)}
.chat-fab.open svg{stroke:var(--cyan)}
.chat-panel{position:fixed;right:22px;bottom:92px;width:min(384px,calc(100vw - 44px));height:min(560px,calc(100vh - 130px));
  background:var(--panel);border:1px solid var(--line);border-radius:18px;display:flex;flex-direction:column;overflow:hidden;
  box-shadow:0 30px 80px -30px rgba(0,0,0,.85);z-index:61}
.chat-panel[hidden]{display:none}
.chat-head{display:flex;align-items:center;gap:11px;padding:14px 16px;border-bottom:1px solid var(--line);
  background:linear-gradient(135deg,rgba(34,211,238,.10),rgba(168,85,247,.10))}
.chat-avatar{width:36px;height:36px;border-radius:50%;background:var(--grad);color:#04121a;font-weight:800;font-size:.78rem;display:grid;place-items:center;flex:none}
.chat-head strong{display:block;font-size:.95rem}
.chat-status{font-size:.75rem;color:var(--muted-2)}
.chat-close{margin-left:auto;background:none;border:0;color:var(--muted);font-size:1.5rem;line-height:1;cursor:pointer;padding:0 4px}
.chat-close:hover{color:var(--text)}
.chat-body{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px}
.msg{max-width:86%;padding:10px 13px;border-radius:14px;font-size:.9rem;line-height:1.5;white-space:pre-wrap;overflow-wrap:anywhere}
.msg.ai{background:var(--panel-2);border:1px solid var(--line);color:var(--text);align-self:flex-start;border-bottom-left-radius:4px}
.msg.me{background:var(--grad);color:#04121a;align-self:flex-end;border-bottom-right-radius:4px;font-weight:500}
.msg.system{align-self:center;background:transparent;border:0;color:var(--muted-2);font-size:.76rem;padding:2px 0}
.msg.typing{display:flex;gap:4px;align-items:center;padding:13px 14px}
.msg.typing span{width:6px;height:6px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite}
.msg.typing span:nth-child(2){animation-delay:.2s}
.msg.typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.3}30%{opacity:1}}
.chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.chat-form input{flex:1;background:#0a1017;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:11px 13px;font-family:inherit;font-size:.9rem}
.chat-form input:focus{outline:none;border-color:var(--cyan)}
.chat-form button{flex:none;width:44px;border-radius:10px;border:0;background:var(--grad);cursor:pointer;display:grid;place-items:center}
.chat-form button svg{width:20px;height:20px;fill:#04121a}
@media (max-width:520px){ .chat-panel{right:12px;left:12px;bottom:84px;width:auto} .chat-fab{right:14px;bottom:16px} }