:root{--navy:#143a52;--navy-deep:#0d2939;--steel:#4a7fa5;--steel-light:#7ba7c7;--mist:#eef3f7;--ink:#1c2b36;--paper:#fff;--muted:#5b6b77;--kamiroh-purple:#4738a8;--kamiroh-teal:#3aa88a;--radius:12px;--shadow:0 2px 12px rgba(13,41,57,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--paper);flex-direction:column;min-height:100vh;margin:0;font-family:Avenir Next,Avenir,Segoe UI,Helvetica,Arial,sans-serif;line-height:1.6;display:flex}main{flex:1}.container{max-width:960px;margin:0 auto;padding:0 1.25rem}h1,h2,h3{color:var(--navy);font-weight:700;line-height:1.2}a{color:var(--steel)}.site-header{background:var(--paper);border-bottom:1px solid var(--mist);z-index:10;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;padding-top:.6rem;padding-bottom:.6rem;display:flex;position:relative}.brand-word{color:var(--navy);letter-spacing:.01em;font-family:Georgia,Times New Roman,serif;font-size:1.3rem;font-weight:700;text-decoration:none}.site-nav{gap:1.5rem;display:flex}.site-nav a{color:var(--navy);border-bottom:2px solid transparent;padding:.25rem 0;font-weight:600;text-decoration:none}.site-nav a:hover{border-bottom-color:var(--steel-light)}.site-nav a[aria-current=page]{border-bottom-color:var(--steel)}.menu-toggle{cursor:pointer;background:0 0;border:none;padding:.5rem;display:none}.menu-toggle span{background:var(--navy);border-radius:2px;width:22px;height:2px;margin:5px 0;display:block}.hero{background:radial-gradient(1200px 400px at 70% -50%, rgba(74,127,165,.18), transparent), linear-gradient(180deg, var(--mist), var(--paper));text-align:center;padding:3.25rem 0 4rem}.hero-lockup{flex-direction:column;align-items:center;gap:.25rem;margin-bottom:1rem;display:flex}.hero-logo{width:auto;height:clamp(150px,26vw,230px);display:block}.hero h1{max-width:34rem;margin:0;font-size:clamp(1.6rem,4vw,2.6rem)}.accent-btc{color:#b8860b}.accent-ai{background:linear-gradient(120deg, var(--kamiroh-purple), var(--kamiroh-teal));color:transparent;-webkit-background-clip:text;background-clip:text}.lede{color:var(--muted);max-width:42rem;margin:0 auto 1.5rem;font-size:1.15rem}.hero-actions{flex-wrap:wrap;justify-content:center;gap:.75rem;display:flex}.btn{border:2px solid var(--navy);border-radius:999px;padding:.65rem 1.4rem;font-weight:600;text-decoration:none;transition:transform .12s,box-shadow .12s;display:inline-block}.btn:hover{box-shadow:var(--shadow);transform:translateY(-1px)}.btn-primary{background:var(--navy);color:#fff}.btn-ghost{color:var(--navy);background:0 0}.btn-small{padding:.4rem 1rem;font-size:.9rem}.section{padding:2.5rem 0}.page-head{background:linear-gradient(180deg, var(--mist), var(--paper));padding-top:3.5rem}.page-head h1{margin:0 0 .5rem}.section-title{margin-top:0}.card{background:var(--paper);border:1px solid var(--mist);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1.5rem;padding:1.75rem}.project-card.kamiroh{border-top:4px solid;border-image:linear-gradient(90deg, var(--kamiroh-purple), var(--kamiroh-teal)) 1}.project-card-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:.75rem;display:flex}.project-logo{height:44px}.badge{background:linear-gradient(120deg, var(--kamiroh-purple), var(--kamiroh-teal));color:#fff;letter-spacing:.04em;text-transform:uppercase;border-radius:999px;padding:.3rem .75rem;font-size:.75rem;font-weight:700}.card-actions{flex-wrap:wrap;gap:.75rem;margin-top:1rem;display:flex}.placeholder-card{box-shadow:none;color:var(--muted);text-align:center;border-style:dashed}.placeholder-card h3{color:var(--muted)}.contact-card{text-align:center;padding:2.5rem}.prose p{max-width:46rem}.post-date{color:var(--muted);margin:0 0 .25rem;font-size:.95rem}.post-head h1{margin-bottom:.35rem}.post-index-title{margin:.15rem 0 .75rem}.post-index-title a{color:var(--navy);text-decoration:none}.post-index-title a:hover{text-decoration:underline}.post-body{max-width:44rem;margin:0 auto;font-size:1.06rem;line-height:1.75}.post-body h2{margin:2.4rem 0 .75rem;font-size:1.45rem}.post-body p{margin:1.05rem 0}.post-body p:last-child{color:var(--muted);margin-top:2rem}.site-footer{background:var(--navy-deep);color:var(--steel-light);text-align:center;margin-top:3rem;padding:1.75rem 0;font-size:.9rem}.site-footer p{margin:.25rem 0}.footer-fine{opacity:.7}@media (width<=640px){.menu-toggle{display:block}.site-nav{background:var(--paper);border-bottom:1px solid var(--mist);box-shadow:var(--shadow);flex-direction:column;gap:.75rem;padding:1rem 1.25rem;display:none;position:absolute;top:100%;left:0;right:0}.site-nav.open{display:flex}}