:root{
  --bg:#08080b;
  --bg-2:#0f0f14;
  --panel:rgba(255,255,255,.04);
  --panel-2:rgba(255,255,255,.07);
  --ink:#f3f2ef;
  --ink-2:#b9b8c0;
  --muted:#7c7b86;
  --line:rgba(255,255,255,.1);
  --violet:#7b5cff;
  --blue:#39a0ff;
  --orange:#ff7a45;
  --pink:#ff4fa3;
  --grad:linear-gradient(100deg,#ff7a45 0%,#ff4fa3 35%,#7b5cff 68%,#39a0ff 100%);
  --radius:20px;
  --maxw:900px;
  --display:'Italiana',serif;
  --sans:'Geist','Inter',sans-serif;
  --jp:'Noto Sans JP',"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--jp);
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
h1,h2,h3{font-family:var(--display);font-weight:400;text-transform:uppercase;letter-spacing:-.01em;line-height:1;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.14em;font-weight:500;
  color:var(--ink-2);text-transform:uppercase;margin:0 0 18px;
  font-family:var(--sans);
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--grad);box-shadow:0 0 14px var(--pink);}
.gt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 30px;border-radius:999px;font-weight:500;font-size:14px;
  font-family:var(--sans);letter-spacing:.02em;cursor:pointer;border:1px solid transparent;
  transition:transform .25s ease, box-shadow .25s ease;
}
.btn-primary{background:var(--grad);background-size:300% 100%;color:#fff;box-shadow:0 10px 40px -10px rgba(255,79,163,.6);}
.btn-primary:hover{transform:translateY(-2px);}
.btn-ghost{border-color:var(--line);color:var(--ink);background:var(--panel);}
.btn-ghost:hover{background:var(--panel-2);}

/* Header */
header{
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(14px) saturate(140%);
  background:rgba(8,8,11,.75);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;max-width:1160px;margin:0 auto;padding:0 24px;}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-size:21px;font-weight:400;letter-spacing:.04em;text-transform:uppercase;color:var(--ink);}
.logo .mark{width:28px;height:28px;object-fit:contain;}
.nav-links{display:flex;align-items:center;gap:26px;font-family:var(--sans);font-size:13.5px;letter-spacing:.02em;}
.nav-links a{color:var(--ink-2);transition:color .2s;}
.nav-links a:hover{color:var(--ink);}
.nav-links a.cta{padding:10px 20px;border-radius:999px;background:var(--grad);color:#fff;font-weight:500;}
@media (max-width:760px){ .nav-links{display:none;} }

/* Blog listing */
.blog-hero{padding:90px 0 44px;text-align:center;}
.blog-hero .eyebrow{justify-content:center;}
.blog-hero h1{font-size:clamp(36px,6vw,64px);color:var(--ink);}
.blog-hero p{color:var(--ink-2);margin-top:18px;font-family:var(--jp);font-size:14.5px;}
.post-list{display:flex;flex-direction:column;gap:20px;padding-bottom:100px;}
.post-card{
  display:block;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);overflow:hidden;padding:0;
  transition:transform .4s cubic-bezier(.2,.7,.2,1),border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(255,79,163,.4);}
.post-card .thumb{width:100%;aspect-ratio:1200/400;object-fit:cover;display:block;}
.post-card .card-inner{padding:24px 28px 28px;}
.post-card .date{color:var(--ink-2);font-family:var(--sans);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;}
.post-card h2{font-family:var(--jp);text-transform:none;font-size:19px;font-weight:500;color:var(--ink);margin:10px 0 10px;line-height:1.6;letter-spacing:0;}
.post-card p{color:var(--muted);font-size:14px;line-height:1.85;margin:0;font-family:var(--jp);}
.post-card .tags{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap;}
.post-card .tags span{padding:4px 12px;border-radius:999px;border:1px solid var(--line);color:var(--ink-2);font-size:11.5px;font-family:var(--sans);}
.loading-note{color:var(--muted);font-size:14px;text-align:center;padding:40px 0;font-family:var(--jp);}

/* Post article */
.post-article{max-width:720px;margin:0 auto;padding:90px 24px 100px;}
.post-article .date{color:var(--ink-2);font-family:var(--sans);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;}
.post-article h1{font-family:var(--jp);text-transform:none;font-weight:700;font-size:clamp(24px,3.4vw,32px);line-height:1.6;margin:16px 0 24px;color:var(--ink);letter-spacing:0;}
.post-banner{width:100%;aspect-ratio:1200/630;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);margin-bottom:36px;}
.post-body{color:var(--ink-2);font-size:16px;line-height:2;font-family:var(--jp);}
.post-body p{margin:0 0 24px;}
.post-body h2{font-family:var(--jp);text-transform:none;font-weight:700;color:var(--ink);font-size:20px;margin:40px 0 18px;letter-spacing:0;}
.post-body ol,.post-body ul{margin:0 0 24px;padding-left:1.4em;}
.post-body li{margin-bottom:8px;}
.post-tags{margin-top:40px;display:flex;gap:8px;flex-wrap:wrap;}
.post-tags span{padding:5px 14px;border-radius:999px;border:1px solid var(--line);color:var(--ink-2);font-size:12px;font-family:var(--sans);}
.post-back{display:inline-block;margin-top:48px;color:var(--pink);font-size:14px;font-family:var(--sans);}
.prompt-label{display:block;color:var(--pink);font-size:12px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;font-weight:500;font-family:var(--sans);}
.prompt-box{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--pink);border-radius:12px;padding:22px 24px;margin:0 0 28px;font-size:14.5px;line-height:1.9;color:var(--ink);white-space:pre-wrap;font-family:var(--jp);}

/* Footer */
footer{background:#050507;border-top:1px solid var(--line);padding:56px 0 32px;}
.footer-bottom{max-width:1160px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:12.5px;font-family:var(--sans);}
.footer-bottom a{color:var(--ink-2);}
.footer-bottom a:hover{color:var(--ink);}