:root{--bg: #f6f7f8;--surface: #ffffff;--text: #1e2228;--muted: #5d6672;--accent: #2f7dbf;--accent-soft: #e8f1f8;--shadow: none}:root[data-theme=dark]{--bg: #1d1e20;--surface: #2e2e33;--text: #d7d7d8;--muted: #b2b2b6;--accent: #d7d7d8;--accent-soft: #2e2e33;--accent-button: #1d1e20;--shadow: none}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:IBM Plex Sans,Noto Sans JP,Segoe UI,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--accent);text-decoration:none}img{width:100%;display:block;border-radius:10px}.site-shell{width:min(1100px,92vw);margin:0 auto;padding:2rem 0 3rem;min-height:100vh;display:flex;flex-direction:column}.site-header{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.5rem}.brand-wrap{display:flex;align-items:center;gap:.6rem}.toggle-group{display:flex;align-items:center;gap:.15rem}.brand-link{font-size:1.35rem;font-weight:600;color:var(--text)}.header-toggle{background:var(--bg);color:var(--text);border-radius:8px;padding:.4rem .25rem;cursor:pointer;border:none;min-width:30px;display:inline-flex;align-items:center;justify-content:center}.site-nav{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;justify-content:flex-end}.site-nav a{border-radius:0;padding:.2rem 0;color:var(--muted);background:transparent}.site-nav a.active{color:var(--accent);text-decoration:underline;text-underline-offset:.35rem}.content{flex:1}.home-hero{max-width:520px;margin:7.5rem auto 0;text-align:center}.profile-image{width:min(300px,65vw);aspect-ratio:1 / 1;object-fit:cover;border-radius:50%;margin:0 auto 1.2rem}.home-hero h2{margin:0 0 .5rem;font-size:2rem}.home-hero p{margin:0;color:var(--muted)}.social-links{margin-top:1rem;display:flex;gap:.7rem;justify-content:center}.social-links a{width:46px;height:46px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:var(--surface);color:var(--text);font-size:1.35rem;transition:transform .15s ease}.social-links a:hover{transform:translateY(-2px)}.stack{display:grid;gap:1rem}.section-card{background:var(--bg);border-radius:14px;padding:1.25rem}.section-card h2{margin-top:0}.background-section-card{background:var(--surface);border-radius:14px;box-shadow:var(--shadow);padding:1.25rem}.background-section-card h2{margin-top:0}.read-link{display:inline-block;border-radius:8px;padding:.4rem .7rem;background:var(--accent-button)}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}.item-card{border-radius:12px;padding:.8rem;background:var(--surface)}.project-card{display:flex;flex-direction:column}.project-footer{margin-top:auto;display:flex;flex-direction:column;gap:.75rem}.blog-card{display:flex;flex-direction:column}.blog-card .read-link{margin-top:auto;align-self:flex-start}.item-card h3{margin:.7rem 0 .4rem}.chips{display:flex;flex-wrap:wrap;gap:.4rem}.chips span{border-radius:999px;padding:.15rem .55rem;font-size:.82rem;color:var(--muted);background:var(--accent-button)}.repo-link{display:inline-flex;align-self:flex-start;align-items:center;gap:.45rem;border-radius:8px;padding:.45rem .75rem;background:var(--accent-button);color:var(--text);border:1px solid var(--accent)}repo-link i{font-size:1rem}.timeline{display:grid;gap:.75rem}.timeline-item{border-left:2px solid var(--muted);padding-left:.85rem}.period{margin:0;font-size:.88rem;color:var(--muted)}.company{margin:.2rem 0;color:var(--muted)}.photo-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-auto-rows:44px;gap:1rem}.photo-card{margin:0;position:relative;overflow:hidden;border-radius:12px;background:var(--surface);transition:transform .18s ease}.photo-card img{height:100%;object-fit:cover;border-radius:12px}.photo-overlay{position:absolute;top:.6rem;left:.6rem;right:.6rem;z-index:2;opacity:0;transform:translateY(-6px);transition:opacity .18s ease,transform .18s ease}.photo-overlay p{margin:0;color:#fff;background:#0000008c;font-size:.78rem;padding:.2rem .5rem;border-radius:6px;width:fit-content}.photo-overlay p+p{margin-top:.25rem}.photo-card figcaption{position:absolute;left:.75rem;right:.75rem;bottom:.55rem;margin:0;color:#fff;z-index:2;font-size:.9rem;text-shadow:0 1px 2px rgba(0,0,0,.6)}.photo-card:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to top,rgba(0,0,0,.45),transparent 48%);z-index:1}.photo-card:hover{transform:scale(1.03);z-index:4}.photo-card:hover .photo-overlay{opacity:1;transform:translateY(0)}.photo-hero{grid-column:span 7;grid-row:span 10}.photo-wide{grid-column:span 5;grid-row:span 6}.photo-tall{grid-column:span 4;grid-row:span 8}.photo-square{grid-column:span 3;grid-row:span 6}.blog-article{max-width:760px}.hero-image{margin-bottom:1rem}.site-footer{margin-top:auto;padding-top:2rem;color:var(--muted);text-align:center;font-size:.9rem}@media(max-width:768px){.site-header{flex-direction:column;align-items:flex-start}.site-nav{justify-content:flex-start;width:100%}.photo-grid{grid-template-columns:1fr;grid-auto-rows:auto}.photo-hero,.photo-wide,.photo-tall,.photo-square{grid-column:auto;grid-row:auto}.photo-card img{height:auto}}