/* ═══════════════════════════════════════════════════════════
   MAXSHEN v4 — 个人作品集
   Design tokens & base
   ═══════════════════════════════════════════════════════════ */
:root{
  --bg:#05060a;
  --bg-2:#0a0c14;
  --surface:rgba(255,255,255,0.035);
  --surface-2:rgba(255,255,255,0.06);
  --border:rgba(255,255,255,0.09);
  --border-strong:rgba(255,255,255,0.16);
  --cyan:#22d3ee;
  --cyan-dim:rgba(34,211,238,0.35);
  --violet:#8b5cf6;
  --violet-dim:rgba(139,92,246,0.35);
  --pink:#f472b6;
  --text:#e8eef5;
  --muted:#8b98a9;
  --muted-2:#5b6778;
  --radius:18px;
  --radius-sm:10px;
  --ease:cubic-bezier(.22,1,.36,1);
  --font-display:'Space Grotesk',-apple-system,BlinkMacSystemFont,'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif;
  --font-body:-apple-system,BlinkMacSystemFont,'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif;
  --font-mono:ui-monospace,'SF Mono',SFMono-Regular,Menlo,Consolas,monospace;
  --nav-h:64px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  overflow-x:hidden;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(34,211,238,.28);color:#fff}
a{color:inherit}
img{max-width:100%;display:block}

/* ═══════════════════════════════════════════════════════════
   BACKGROUND LAYERS — aurora + grid + noise
   ═══════════════════════════════════════════════════════════ */
.bg-fixed{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(60% 50% at 15% 0%,rgba(34,211,238,.10),transparent 60%),
    radial-gradient(55% 45% at 85% 10%,rgba(139,92,246,.12),transparent 60%),
    radial-gradient(70% 60% at 50% 110%,rgba(236,72,153,.07),transparent 60%),
    var(--bg);
}
.bg-aurora{
  position:fixed;inset:-20%;z-index:-1;pointer-events:none;
  filter:blur(90px);opacity:.5;
  animation:aurora-drift 26s ease-in-out infinite alternate;
}
.bg-aurora::before,.bg-aurora::after{
  content:'';position:absolute;width:45vw;height:45vw;border-radius:50%;
  mix-blend-mode:screen;
}
.bg-aurora::before{
  left:5%;top:8%;
  background:radial-gradient(circle,rgba(34,211,238,.22),transparent 65%);
  animation:aurora-a 20s ease-in-out infinite alternate;
}
.bg-aurora::after{
  right:2%;bottom:5%;
  background:radial-gradient(circle,rgba(139,92,246,.24),transparent 65%);
  animation:aurora-b 24s ease-in-out infinite alternate;
}
@keyframes aurora-drift{from{transform:translate3d(-2%,-1%,0) rotate(0)}to{transform:translate3d(2%,2%,0) rotate(6deg)}}
@keyframes aurora-a{from{transform:translate(0,0) scale(1)}to{transform:translate(8%,6%) scale(1.15)}}
@keyframes aurora-b{from{transform:translate(0,0) scale(1.1)}to{transform:translate(-7%,-5%) scale(.95)}}
.bg-grid{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(148,163,184,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(148,163,184,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 100%);
  mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 100%);
}
.bg-noise{
  position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.05;
  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='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
canvas#nebula{position:fixed;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none;opacity:.85}
canvas#nebula.off{display:none}

/* ═══════════════════════════════════════════════════════════
   CUSTOM CURSOR
   ═══════════════════════════════════════════════════════════ */
.cursor-dot,.cursor-ring{position:fixed;top:0;left:0;pointer-events:none;z-index:9999;border-radius:50%;transform:translate(-50%,-50%);mix-blend-mode:difference}
.cursor-dot{width:6px;height:6px;background:#fff}
.cursor-ring{width:34px;height:34px;border:1.5px solid rgba(255,255,255,.55);transition:width .25s var(--ease),height .25s var(--ease),border-color .25s,background .25s}
.cursor-ring.hovering{width:56px;height:56px;border-color:rgba(34,211,238,.9);background:rgba(34,211,238,.08)}
@media (pointer:coarse){.cursor-dot,.cursor-ring{display:none}}
body.cursor-on *{cursor:none !important}

/* ═══════════════════════════════════════════════════════════
   SCROLL PROGRESS
   ═══════════════════════════════════════════════════════════ */
#scrollProgress{
  position:fixed;top:0;left:0;height:2px;width:100%;z-index:300;
  background:linear-gradient(90deg,var(--cyan),var(--violet),var(--pink));
  transform-origin:0 50%;transform:scaleX(0);
}

/* ═══════════════════════════════════════════════════════════
   PRELOADER
   ═══════════════════════════════════════════════════════════ */
#preloader{
  position:fixed;inset:0;z-index:500;background:var(--bg);
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:1.2rem;
  transition:opacity .6s var(--ease),visibility .6s;
}
#preloader.done{opacity:0;visibility:hidden}
.pl-logo{
  font-family:var(--font-display);font-weight:700;font-size:2.2rem;letter-spacing:.04em;
  background:linear-gradient(120deg,var(--cyan),var(--violet),var(--pink));
  background-size:200% 100%;
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:gradient-flow 3s linear infinite;
}
.pl-bar{width:180px;height:2px;background:rgba(255,255,255,.08);border-radius:2px;overflow:hidden}
.pl-bar i{display:block;height:100%;width:40%;border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--violet));animation:pl-load 1.1s var(--ease) infinite}
@keyframes pl-load{0%{transform:translateX(-110%)}100%{transform:translateX(480%)}}
@keyframes gradient-flow{to{background-position:200% 0}}

/* ═══════════════════════════════════════════════════════════
   NAV
   ═══════════════════════════════════════════════════════════ */
nav{
  position:fixed;top:0;left:0;right:0;z-index:200;height:var(--nav-h);
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background .4s,border-color .4s,backdrop-filter .4s;
}
nav.scrolled{
  background:rgba(5,6,10,.72);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--border);
}
.nav-inner{
  width:100%;max-width:1180px;margin:0 auto;padding:0 1.6rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.nav-logo{
  font-family:var(--font-display);font-weight:700;font-size:1.15rem;letter-spacing:.02em;
  text-decoration:none;display:flex;align-items:center;gap:.45rem;
}
.nav-logo .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:pulse-dot 2.4s infinite}
@keyframes pulse-dot{0%,100%{opacity:1;box-shadow:0 0 10px var(--cyan)}50%{opacity:.45;box-shadow:0 0 3px var(--cyan)}}
.nav-logo .grad{
  background:linear-gradient(120deg,#fff,var(--cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.nav-links{display:flex;gap:.35rem;list-style:none;align-items:center}
.nav-links a{
  color:var(--muted);text-decoration:none;font-size:.9rem;font-weight:500;
  padding:.5rem .9rem;border-radius:999px;position:relative;
  transition:color .3s,background .3s;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--cyan);background:rgba(34,211,238,.08)}
.nav-cta{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.5rem 1.1rem;border-radius:999px;font-size:.85rem;font-weight:600;
  color:#04121a;background:linear-gradient(120deg,var(--cyan),var(--violet));
  text-decoration:none;transition:transform .3s var(--ease),box-shadow .3s;
  box-shadow:0 0 0 rgba(34,211,238,0);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(34,211,238,.35)}
.hamburger{display:none;background:none;border:none;color:var(--text);font-size:1.4rem;cursor:pointer;line-height:1;padding:.3rem}

/* ═══════════════════════════════════════════════════════════
   GENERIC LAYOUT
   ═══════════════════════════════════════════════════════════ */
.container{max-width:1180px;margin:0 auto;padding:0 1.6rem}
section{position:relative;z-index:1}
.section{padding:6.5rem 0}
.sec-head{margin-bottom:3.2rem}
.sec-over{
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.35em;
  color:var(--cyan);text-transform:uppercase;display:flex;align-items:center;gap:.9rem;
  margin-bottom:.9rem;
}
.sec-over::before{content:'';width:34px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.sec-title{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(1.7rem,3.6vw,2.6rem);line-height:1.15;letter-spacing:-.01em;
}
.sec-title .grad{
  background:linear-gradient(120deg,var(--cyan),var(--violet),var(--pink));
  background-size:220% 100%;
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:gradient-flow 6s linear infinite;
}
.sec-sub{color:var(--muted);margin-top:.7rem;max-width:560px;font-size:.95rem}

/* ═══════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════ */
.hero{
  min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:calc(var(--nav-h) + 2rem) 1.6rem 4rem;position:relative;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.42rem 1.05rem;border-radius:999px;font-size:.76rem;letter-spacing:.12em;
  color:var(--cyan);border:1px solid rgba(34,211,238,.28);
  background:rgba(34,211,238,.06);text-transform:uppercase;margin-bottom:2.1rem;
  font-family:var(--font-mono);
}
.hero-badge .live-dot{width:7px;height:7px;border-radius:50%;background:#34d399;box-shadow:0 0 8px #34d399;animation:ping-dot 1.8s infinite}
@keyframes ping-dot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(1.35)}}
.hero h1{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(3rem,9.5vw,7rem);line-height:1.02;letter-spacing:-.02em;
  margin-bottom:1.2rem;
}
.hero h1 .stroke{
  display:block;
  background:linear-gradient(120deg,var(--cyan) 0%,var(--violet) 55%,var(--pink) 100%);
  background-size:220% 100%;
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:gradient-flow 5s linear infinite;
  filter:drop-shadow(0 0 34px rgba(139,92,246,.35));
}
.hero-sub{
  font-size:clamp(1rem,2.1vw,1.3rem);color:var(--muted);font-weight:300;letter-spacing:.06em;
  margin-bottom:1.4rem;
}
.typing-wrap{height:1.8rem;margin-bottom:2.6rem}
#typing{
  font-family:var(--font-mono);font-size:.95rem;color:var(--muted);
  border-right:2px solid var(--cyan);animation:blink .85s step-end infinite;white-space:nowrap;
}
@keyframes blink{50%{border-color:transparent}}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center;margin-bottom:3.4rem}
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.78rem 1.7rem;border-radius:999px;font-size:.92rem;font-weight:600;
  text-decoration:none;position:relative;overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s,border-color .3s,color .3s;
  border:1px solid transparent;
}
.btn-primary{
  color:#04121a;background:linear-gradient(120deg,var(--cyan),var(--violet));
  box-shadow:0 6px 30px rgba(34,211,238,.25);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(34,211,238,.4)}
.btn-primary::after{
  content:'';position:absolute;top:0;left:-80%;width:50%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);
  transform:skewX(-20deg);transition:left .6s var(--ease);
}
.btn-primary:hover::after{left:130%}
.btn-ghost{color:var(--text);border-color:var(--border-strong);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--cyan-dim);box-shadow:0 6px 24px rgba(34,211,238,.15);transform:translateY(-2px)}

/* stats */
.stats{
  display:grid;grid-template-columns:repeat(4,minmax(120px,1fr));gap:1.2rem;
  width:100%;max-width:720px;margin-bottom:4rem;
}
.stat{
  padding:1.2rem .6rem;border-radius:var(--radius-sm);
  background:var(--surface);border:1px solid var(--border);
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;
}
.stat:hover{transform:translateY(-4px);border-color:var(--cyan-dim);box-shadow:0 10px 30px rgba(34,211,238,.12)}
.stat-num{
  font-family:var(--font-display);font-weight:700;font-size:clamp(1.5rem,3.4vw,2.2rem);
  background:linear-gradient(120deg,#fff,var(--cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.stat-label{font-size:.76rem;color:var(--muted);letter-spacing:.08em;margin-top:.25rem}
.hero-scroll{
  position:absolute;bottom:2.2rem;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:.5rem;color:var(--muted-2);
  font-size:.72rem;letter-spacing:.3em;text-transform:uppercase;font-family:var(--font-mono);
}
.hero-scroll .line{width:1px;height:46px;background:linear-gradient(to bottom,var(--cyan),transparent);overflow:hidden;position:relative}
.hero-scroll .line::after{content:'';position:absolute;top:-50%;left:0;width:100%;height:50%;background:#fff;animation:scroll-line 1.8s var(--ease) infinite}
@keyframes scroll-line{0%{top:-50%}100%{top:110%}}

/* ═══════════════════════════════════════════════════════════
   MARQUEE
   ═══════════════════════════════════════════════════════════ */
.marquee{
  position:relative;z-index:1;overflow:hidden;padding:1.15rem 0;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  background:rgba(255,255,255,.015);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.marquee-track{
  display:flex;gap:3rem;width:max-content;
  animation:marquee 26s linear infinite;
}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{
  font-family:var(--font-display);font-size:1.02rem;color:var(--muted);
  white-space:nowrap;display:flex;align-items:center;gap:3rem;
}
.marquee-track span i{color:var(--cyan);font-style:normal;font-size:.6rem}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ═══════════════════════════════════════════════════════════
   PROJECTS / CARDS
   ═══════════════════════════════════════════════════════════ */
.projects-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(330px,1fr));gap:1.4rem;
}
.pcard{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--border);
  background:var(--surface);
  text-decoration:none;display:flex;flex-direction:column;
  transition:border-color .4s,transform .4s var(--ease),box-shadow .4s;
  transform-style:preserve-3d;
  will-change:transform;
}
.pcard::before{
  content:'';position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(140deg,rgba(34,211,238,.55),transparent 30%,transparent 70%,rgba(139,92,246,.55));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity .5s;
  pointer-events:none;
}
.pcard:hover::before{opacity:1}
.pcard::after{
  content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(34,211,238,.10),transparent 45%);
  opacity:0;transition:opacity .4s;
}
.pcard:hover::after{opacity:1}
.pcard:hover{
  transform:translateY(-6px) perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));
  border-color:var(--border-strong);
  box-shadow:0 24px 60px rgba(0,0,0,.5),0 0 40px rgba(34,211,238,.08);
}
.pcard-top{
  height:150px;position:relative;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(120% 120% at 20% 0%,rgba(34,211,238,.10),transparent 55%),radial-gradient(120% 120% at 90% 100%,rgba(139,92,246,.12),transparent 55%);
  border-bottom:1px solid var(--border);
  font-size:3rem;overflow:hidden;
}
.pcard-top .shine{
  position:absolute;top:-60%;left:-30%;width:60%;height:220%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.09),transparent);
  transform:rotate(18deg);transition:left .8s var(--ease);
}
.pcard:hover .pcard-top .shine{left:130%}
.pcard-body{padding:1.4rem 1.5rem 1.6rem;flex:1;display:flex;flex-direction:column}
.pcard-tags{display:flex;gap:.45rem;flex-wrap:wrap;margin-bottom:.8rem}
.pcard-tags em{
  font-style:normal;font-family:var(--font-mono);font-size:.66rem;letter-spacing:.06em;
  color:var(--cyan);padding:.18rem .6rem;border-radius:999px;
  border:1px solid rgba(34,211,238,.25);background:rgba(34,211,238,.06);
}
.pcard h3{font-family:var(--font-display);font-size:1.12rem;font-weight:600;margin-bottom:.45rem}
.pcard p{font-size:.85rem;color:var(--muted);line-height:1.7;flex:1}
.pcard-go{
  margin-top:1.1rem;font-size:.82rem;color:var(--muted);display:flex;align-items:center;gap:.4rem;
  transition:color .3s,gap .3s;font-weight:500;
}
.pcard:hover .pcard-go{color:var(--cyan);gap:.7rem}
.pcard.featured{grid-column:span 2}
@media(max-width:760px){.pcard.featured{grid-column:span 1}}

/* ═══════════════════════════════════════════════════════════
   SKILLS
   ═══════════════════════════════════════════════════════════ */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.4rem}
.skill-group{
  border-radius:var(--radius);padding:1.6rem;
  background:var(--surface);border:1px solid var(--border);
  transition:border-color .35s,transform .35s var(--ease);
}
.skill-group:hover{border-color:var(--violet-dim);transform:translateY(-3px)}
.skill-group h3{font-size:.95rem;font-weight:600;margin-bottom:1.2rem;display:flex;align-items:center;gap:.6rem}
.skill-group h3 i{font-style:normal;font-size:1.1rem}
.skill{
  margin-bottom:1rem;
}
.skill:last-child{margin-bottom:0}
.skill-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.4rem;font-size:.82rem}
.skill-top .name{color:var(--text);font-weight:500}
.skill-top .val{font-family:var(--font-mono);color:var(--cyan);font-size:.74rem}
.skill-bar{height:5px;border-radius:99px;background:rgba(255,255,255,.06);overflow:hidden;position:relative}
.skill-bar i{
  display:block;height:100%;width:0;border-radius:99px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  transition:width 1.2s var(--ease);
  box-shadow:0 0 12px rgba(34,211,238,.5);
}
.skill-group:hover .skill-bar i{box-shadow:0 0 16px rgba(34,211,238,.7)}

/* ═══════════════════════════════════════════════════════════
   TIMELINE
   ═══════════════════════════════════════════════════════════ */
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:2.2rem}
.timeline::before{
  content:'';position:absolute;left:7px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(to bottom,var(--cyan),var(--violet),transparent);
}
.tl-item{position:relative;padding-bottom:2.4rem}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:'';position:absolute;left:-2.2rem;top:6px;width:15px;height:15px;border-radius:50%;
  border:2px solid var(--cyan);background:var(--bg);
  box-shadow:0 0 0 4px rgba(34,211,238,.08);
}
.tl-item.glow::before{border-color:var(--violet);box-shadow:0 0 0 4px rgba(139,92,246,.1),0 0 18px var(--violet)}
.tl-date{font-family:var(--font-mono);font-size:.74rem;color:var(--cyan);letter-spacing:.1em;margin-bottom:.3rem}
.tl-title{font-size:1.05rem;font-weight:600;margin-bottom:.3rem}
.tl-desc{font-size:.87rem;color:var(--muted);line-height:1.7}
.tl-tag{
  display:inline-block;margin-top:.55rem;font-size:.68rem;font-family:var(--font-mono);
  padding:.2rem .7rem;border-radius:999px;border:1px solid var(--border-strong);color:var(--muted);
}

/* ═══════════════════════════════════════════════════════════
   BLOG
   ═══════════════════════════════════════════════════════════ */
.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.4rem}
.bcard{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--border);background:var(--surface);
  padding:1.6rem;text-decoration:none;display:block;
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;
}
.bcard::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(380px circle at var(--mx,50%) var(--my,50%),rgba(139,92,246,.09),transparent 45%);
  opacity:0;transition:opacity .4s;
}
.bcard:hover::after{opacity:1}
.bcard:hover{transform:translateY(-5px);border-color:var(--violet-dim);box-shadow:0 20px 50px rgba(0,0,0,.45)}
.bcard .meta{display:flex;gap:.6rem;align-items:center;font-family:var(--font-mono);font-size:.7rem;color:var(--muted);margin-bottom:.9rem}
.bcard .meta .status{color:var(--cyan)}
.bcard .meta .status.wip{color:var(--violet)}
.bcard h3{font-size:1.02rem;font-weight:600;margin-bottom:.5rem;line-height:1.45}
.bcard p{font-size:.84rem;color:var(--muted);line-height:1.7}
.bcard .arrow{position:absolute;top:1.5rem;right:1.5rem;color:var(--muted-2);font-size:1.05rem;transition:color .3s,transform .3s}
.bcard:hover .arrow{color:var(--cyan);transform:translate(3px,-3px)}

/* ═══════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════ */
.contact-card{
  position:relative;max-width:640px;margin:0 auto;text-align:center;
  border-radius:calc(var(--radius) + 6px);padding:3.2rem 2rem;
  border:1px solid var(--border);
  background:
    radial-gradient(120% 160% at 50% 0%,rgba(34,211,238,.09),transparent 55%),
    radial-gradient(120% 160% at 50% 110%,rgba(139,92,246,.09),transparent 55%),
    var(--surface);
  overflow:hidden;
}
.contact-card::before{
  content:'';position:absolute;top:-40%;left:50%;transform:translateX(-50%);
  width:70%;height:90%;border-radius:50%;
  background:radial-gradient(circle,rgba(34,211,238,.16),transparent 70%);
  filter:blur(30px);pointer-events:none;
}
.contact-card h3{font-family:var(--font-display);font-size:1.5rem;font-weight:700;margin-bottom:.8rem;position:relative}
.contact-card p{color:var(--muted);font-size:.92rem;line-height:1.9;margin-bottom:1.8rem;position:relative}
.contact-links{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap;position:relative}
.contact-links a{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.68rem 1.3rem;border-radius:999px;font-size:.86rem;font-weight:500;
  border:1px solid var(--border-strong);color:var(--text);text-decoration:none;
  background:rgba(255,255,255,.03);
  transition:border-color .3s,color .3s,transform .3s var(--ease),box-shadow .3s;
}
.contact-links a:hover{
  border-color:var(--cyan-dim);color:var(--cyan);
  transform:translateY(-2px);box-shadow:0 8px 24px rgba(34,211,238,.15);
}

/* ═══════════════════════════════════════════════════════════
   AI CHAT FAB + PANEL
   ═══════════════════════════════════════════════════════════ */
.ai-fab{
  position:fixed;bottom:1.6rem;right:1.6rem;z-index:150;
  width:54px;height:54px;border-radius:50%;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  border:1px solid rgba(255,255,255,.2);
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  font-size:1.25rem;
  box-shadow:0 10px 30px rgba(34,211,238,.35);
  transition:transform .3s var(--ease),box-shadow .3s;
  animation:fab-pulse 3.2s infinite;
}
.ai-fab:hover{transform:scale(1.1) rotate(8deg);box-shadow:0 14px 44px rgba(34,211,238,.55)}
@keyframes fab-pulse{0%,100%{box-shadow:0 10px 30px rgba(34,211,238,.3)}50%{box-shadow:0 10px 42px rgba(34,211,238,.55)}}
.ai-panel{
  position:fixed;bottom:calc(1.6rem + 66px);right:1.6rem;z-index:149;
  width:min(380px,calc(100vw - 2rem));
  max-height:min(540px,calc(100vh - 7rem));
  background:rgba(10,12,20,.96);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border:1px solid var(--border-strong);border-radius:var(--radius);
  display:none;flex-direction:column;overflow:hidden;
  box-shadow:0 30px 90px rgba(0,0,0,.6);
  transform-origin:bottom right;
}
.ai-panel.open{display:flex;animation:panel-in .35s var(--ease)}
@keyframes panel-in{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:none}}
.ai-panel-h{
  padding:.95rem 1.1rem;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:.6rem;
}
.ai-panel-h .t{font-size:.88rem;font-weight:600;display:flex;align-items:center;gap:.5rem}
.ai-panel-h .t .st{width:7px;height:7px;border-radius:50%;background:#34d399;box-shadow:0 0 8px #34d399}
.ai-panel-h .sub{font-size:.68rem;color:var(--muted-2);font-family:var(--font-mono);margin-top:.1rem}
.ai-panel-h .close{background:none;border:none;color:var(--muted);font-size:1.05rem;cursor:pointer;padding:.2rem;line-height:1;transition:color .2s}
.ai-panel-h .close:hover{color:var(--text)}
.ai-msgs{flex:1;padding:1rem;overflow-y:auto;display:flex;flex-direction:column;gap:.75rem}
.ai-msgs .msg{max-width:86%;padding:.7rem .95rem;border-radius:14px;font-size:.84rem;line-height:1.65}
.ai-msgs .msg.bot{align-self:flex-start;background:rgba(255,255,255,.045);border:1px solid var(--border);color:var(--text);border-bottom-left-radius:4px}
.ai-msgs .msg.user{align-self:flex-end;background:linear-gradient(135deg,rgba(34,211,238,.16),rgba(139,92,246,.16));border:1px solid rgba(34,211,238,.22);border-bottom-right-radius:4px}
.ai-msgs .msg.typing{align-self:flex-start;display:flex;gap:4px;align-items:center;padding:.75rem 1rem;background:rgba(255,255,255,.045);border:1px solid var(--border);border-radius:14px}
.ai-msgs .msg.typing span{width:6px;height:6px;border-radius:50%;background:var(--cyan);animation:td 1.1s infinite}
.ai-msgs .msg.typing span:nth-child(2){animation-delay:.18s}
.ai-msgs .msg.typing span:nth-child(3){animation-delay:.36s}
@keyframes td{0%,100%{opacity:.25;transform:scale(.8)}50%{opacity:1;transform:scale(1.2)}}
.ai-quick{display:flex;gap:.5rem;padding:0 1rem .2rem;flex-wrap:wrap}
.ai-quick button{
  font-size:.7rem;padding:.3rem .7rem;border-radius:999px;cursor:pointer;
  border:1px solid var(--border);color:var(--muted);background:transparent;
  font-family:inherit;transition:color .25s,border-color .25s;
}
.ai-quick button:hover{color:var(--cyan);border-color:var(--cyan-dim)}
.ai-in{padding:.85rem 1rem;border-top:1px solid var(--border);display:flex;gap:.55rem}
.ai-in input{
  flex:1;min-width:0;background:rgba(255,255,255,.045);border:1px solid var(--border);
  border-radius:999px;padding:.62rem 1rem;color:var(--text);font-size:.85rem;
  outline:none;font-family:inherit;transition:border-color .25s;
}
.ai-in input:focus{border-color:var(--cyan-dim)}
.ai-in input::placeholder{color:var(--muted-2)}
.ai-in button{
  background:linear-gradient(120deg,var(--cyan),var(--violet));border:none;
  border-radius:999px;padding:.62rem 1.15rem;color:#04121a;cursor:pointer;
  font-size:.85rem;font-weight:600;font-family:inherit;transition:opacity .2s,transform .2s;
}
.ai-in button:hover{opacity:.88;transform:scale(1.03)}

/* ═══════════════════════════════════════════════════════════
   CMD PALETTE
   ═══════════════════════════════════════════════════════════ */
.cmd-overlay{
  position:fixed;inset:0;z-index:400;background:rgba(3,4,8,.66);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  display:none;align-items:flex-start;justify-content:center;padding-top:16vh;
}
.cmd-overlay.open{display:flex}
.cmd-palette{
  width:min(540px,92vw);background:rgba(12,14,22,.98);
  border:1px solid var(--border-strong);border-radius:var(--radius);
  overflow:hidden;box-shadow:0 40px 120px rgba(0,0,0,.7);
  animation:panel-in .28s var(--ease);
}
.cmd-palette input{
  width:100%;padding:1.05rem 1.3rem;background:transparent;border:none;
  color:var(--text);font-size:1.05rem;outline:none;font-family:inherit;
  border-bottom:1px solid var(--border);
}
.cmd-palette input::placeholder{color:var(--muted-2)}
.cmd-list{padding:.55rem;max-height:320px;overflow-y:auto}
.cmd-item{
  display:flex;align-items:center;gap:.8rem;padding:.68rem .85rem;border-radius:10px;
  cursor:pointer;color:var(--muted);font-size:.86rem;transition:background .18s,color .18s;
}
.cmd-item:hover,.cmd-item.active{background:rgba(34,211,238,.09);color:var(--text)}
.cmd-item .k{margin-left:auto;font-family:var(--font-mono);font-size:.68rem;color:var(--muted-2);border:1px solid var(--border);border-radius:5px;padding:.1rem .4rem}
.cmd-empty{padding:1.2rem;text-align:center;color:var(--muted-2);font-size:.85rem}

/* ═══════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════ */
footer{
  position:relative;z-index:1;border-top:1px solid var(--border);
  padding:2.6rem 1.6rem;text-align:center;
}
.footer-inner{max-width:1180px;margin:0 auto;display:flex;flex-direction:column;gap:1rem;align-items:center}
.footer-links{display:flex;gap:1.4rem;flex-wrap:wrap;justify-content:center;font-size:.84rem}
.footer-links a{color:var(--muted);text-decoration:none;transition:color .3s}
.footer-links a:hover{color:var(--cyan)}
.footer-meta{font-size:.78rem;color:var(--muted-2)}
.footer-meta .hl{color:var(--muted)}
.footer-meta kbd{
  font-family:var(--font-mono);font-size:.68rem;background:var(--surface-2);
  border:1px solid var(--border);border-radius:5px;padding:.1rem .45rem;color:var(--muted);
}

/* ═══════════════════════════════════════════════════════════
   SUBPAGE
   ═══════════════════════════════════════════════════════════ */
.page-hero{
  padding:calc(var(--nav-h) + 4.5rem) 0 3rem;
  border-bottom:1px solid var(--border);
}
.page-hero .back{
  display:inline-flex;align-items:center;gap:.45rem;color:var(--muted);text-decoration:none;
  font-size:.84rem;margin-bottom:1.6rem;transition:color .3s,gap .3s;
}
.page-hero .back:hover{color:var(--cyan);gap:.7rem}
.page-hero h1{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2rem,5vw,3.2rem);line-height:1.1;letter-spacing:-.01em;
}
.page-hero h1 .grad{
  background:linear-gradient(120deg,var(--cyan),var(--violet),var(--pink));
  background-size:220% 100%;
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:gradient-flow 6s linear infinite;
}
.page-hero .sub{color:var(--muted);margin-top:.8rem;font-size:.98rem;font-weight:300;letter-spacing:.04em}
.page-body{padding:3.4rem 0 5rem}
.panel{
  border-radius:var(--radius);padding:2rem;
  background:var(--surface);border:1px solid var(--border);
  margin-bottom:1.4rem;
  transition:border-color .3s,transform .3s var(--ease);
}
.panel:hover{border-color:var(--border-strong)}
.panel h2{font-size:1.08rem;font-weight:600;margin-bottom:1rem;display:flex;align-items:center;gap:.6rem}
.panel p,.panel li{color:var(--muted);font-size:.9rem;line-height:1.9}
.panel ul{list-style:none}
.panel li{padding:.45rem 0 .45rem 1.3rem;position:relative}
.panel li::before{content:'▹';position:absolute;left:0;color:var(--cyan);font-size:.8rem;top:.62rem}
.panel li strong{color:var(--text);font-weight:600}
.panel code{
  font-family:var(--font-mono);font-size:.8rem;color:var(--cyan);
  background:rgba(34,211,238,.07);padding:.12rem .45rem;border-radius:5px;
}

/* ═══════════════════════════════════════════════════════════
   REVEAL ANIMATIONS
   ═══════════════════════════════════════════════════════════ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.visible{opacity:1;transform:none}
.reveal-l{opacity:0;transform:translateX(-34px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal-l.visible{opacity:1;transform:none}
.reveal-r{opacity:0;transform:translateX(34px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal-r.visible{opacity:1;transform:none}
.reveal-scale{opacity:0;transform:scale(.92);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal-scale.visible{opacity:1;transform:none}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media(max-width:860px){
  .nav-links{
    display:none;position:absolute;top:var(--nav-h);left:0;right:0;flex-direction:column;
    align-items:stretch;gap:.2rem;padding:1rem 1.4rem 1.4rem;
    background:rgba(5,6,10,.96);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:.8rem 1rem;border-radius:12px}
  .nav-cta{display:none}
  .hamburger{display:block}
  .section{padding:4.5rem 0}
  .stats{grid-template-columns:repeat(2,1fr);gap:.8rem}
}
@media(max-width:480px){
  .hero h1{font-size:clamp(2.6rem,15vw,4rem)}
  .projects-grid{grid-template-columns:1fr}
  .ai-panel{right:1rem;bottom:calc(1.4rem + 58px);width:calc(100vw - 2rem)}
  .ai-fab{right:1rem;bottom:1.4rem}
  .contact-card{padding:2.4rem 1.2rem}
}

/* ═══════════════════════════════════════════════════════════
   REDUCED MOTION
   ═══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal,.reveal-l,.reveal-r,.reveal-scale{opacity:1;transform:none}
}