:root{color-scheme:light;--bg: #f6f3ec;--bg-soft: #eee9dd;--surface: #fffdf8;--surface-raised: #ffffff;--ink: #14201d;--muted: #5f6f69;--line: #ddd5c7;--primary: #0f766e;--primary-strong: #0a5f59;--primary-soft: #dff3ef;--accent: #d95f39;--accent-soft: #ffe0d2;--gold: #f0b429;--shadow: 0 24px 80px rgba(24, 33, 31, .14);--radius: 8px;font-family:Inter,Noto Sans JP,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}:root[data-theme=dark]{color-scheme:dark;--bg: #111816;--bg-soft: #17211f;--surface: #1a2421;--surface-raised: #202c28;--ink: #f4f1e8;--muted: #b9c5bf;--line: #33413d;--primary: #42c4b6;--primary-strong: #76ded2;--primary-soft: #123b36;--accent: #ff946d;--accent-soft: #40261e;--gold: #f3c95f;--shadow: 0 24px 80px rgba(0, 0, 0, .34)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:radial-gradient(circle at top left,color-mix(in srgb,var(--primary),transparent 86%),transparent 34rem),radial-gradient(circle at right 18rem,color-mix(in srgb,var(--accent),transparent 88%),transparent 30rem),var(--bg);color:var(--ink);font-size:16px;line-height:1.7;text-rendering:optimizeLegibility;transition:background .28s ease,color .28s ease;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}button{font:inherit}button,a{transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease}.portfolio-shell{min-height:100vh}.site-header{position:sticky;top:0;z-index:20;display:grid;grid-template-columns:auto auto;align-items:center;justify-content:space-between;gap:clamp(14px,2vw,28px);padding:14px clamp(18px,4vw,54px);border-bottom:1px solid color-mix(in srgb,var(--line),transparent 18%);background:color-mix(in srgb,var(--bg),transparent 8%);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand,.hero-actions,.theme-toggle,.article-meta{display:flex;align-items:center}.brand{gap:10px;min-width:0;font-weight:900}.brand-mark{display:grid;width:38px;height:38px;flex:0 0 auto;place-items:center;border:1px solid color-mix(in srgb,var(--ink),transparent 12%);border-radius:var(--radius);background:var(--gold);color:#151515;font-size:.95rem}.theme-toggle{gap:7px;min-height:40px;padding:5px 10px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink);cursor:pointer;font-size:.86rem;font-weight:800;box-shadow:0 10px 30px color-mix(in srgb,var(--ink),transparent 92%)}.theme-icon{line-height:1}.theme-track{position:relative;width:36px;height:20px;border-radius:999px;background:color-mix(in srgb,var(--primary),transparent 76%)}.theme-thumb{position:absolute;top:3px;left:3px;width:14px;height:14px;border-radius:999px;background:var(--primary);transition:transform .24s ease,background .24s ease}:root[data-theme=dark] .theme-thumb{transform:translate(16px);background:var(--gold)}.theme-text{min-width:44px;text-align:left}.workspace{width:min(1180px,calc(100% - 36px));margin-inline:auto}.portfolio-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.72fr);align-items:center;gap:clamp(28px,5vw,76px)}.eyebrow{margin:0 0 12px;color:var(--accent);font-size:.78rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}h1,h2,h3,h4,p{overflow-wrap:anywhere}h1,h2,h3,h4{margin:0;line-height:1.18;letter-spacing:0}h1{max-width:820px;font-size:clamp(2.1rem,4.4vw,4.35rem);font-weight:900}h2{font-size:clamp(1.75rem,3.2vw,3rem);font-weight:900}h3{font-size:1.18rem;font-weight:900}h4{font-size:1rem;font-weight:900}.lead{max-width:760px;margin:24px 0 0;color:var(--muted);font-size:clamp(1rem,1.8vw,1.14rem)}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:30px}.button{display:inline-flex;min-height:46px;align-items:center;justify-content:center;padding:11px 18px;border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;font-weight:900}.button.primary{border-color:var(--primary-strong);background:var(--primary);color:#071513}:root[data-theme=light] .button.primary{color:#fff}.button.secondary{background:var(--surface);color:var(--ink)}.button:hover,.theme-toggle:hover{transform:translateY(-1px)}.hero-card{display:grid;gap:24px;padding:clamp(22px,4vw,34px);border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(135deg,color-mix(in srgb,var(--surface-raised),transparent 4%),color-mix(in srgb,var(--primary-soft),transparent 44%)),var(--surface);box-shadow:var(--shadow)}.hero-card-header p{margin:0 0 12px;color:var(--accent);font-size:.78rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.hero-card-header strong{display:block;font-size:clamp(2.3rem,5vw,4.2rem);line-height:1}.profile-facts{display:grid;gap:12px;margin:0}.profile-facts div{display:grid;grid-template-columns:72px minmax(0,1fr);gap:12px;padding:14px;border:1px solid var(--line);border-radius:var(--radius);background:color-mix(in srgb,var(--surface),transparent 18%)}.profile-facts dt{color:var(--accent);font-size:.78rem;font-weight:900}.profile-facts dd{margin:0;color:var(--ink);font-weight:800}.metrics{display:grid;grid-template-columns:repeat(3,1fr);margin-top:clamp(24px,4vw,40px);border-block:1px solid var(--line)}.metrics div{display:grid;gap:4px;padding:22px clamp(12px,3vw,30px);border-right:1px solid var(--line)}.metrics div:last-child{border-right:0}.metrics strong{color:var(--primary);font-size:clamp(1.25rem,2.4vw,1.8rem);line-height:1}.metrics span{color:var(--muted);font-weight:800}.workspace{padding:clamp(18px,3vw,34px) 0 clamp(44px,7vw,84px)}.tab-list{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;margin-bottom:12px;padding:8px;border:1px solid var(--line);border-radius:var(--radius);background:color-mix(in srgb,var(--surface),transparent 6%)}.tab-list button{display:grid;gap:2px;min-height:62px;align-content:center;padding:10px 12px;border:1px solid transparent;border-radius:var(--radius);background:transparent;color:var(--muted);cursor:pointer;text-align:center}.tab-list button span{color:inherit;font-weight:900}.tab-list button small{color:inherit;font-size:.76rem;font-weight:700}.tab-list button.active{border-color:color-mix(in srgb,var(--primary),transparent 52%);background:var(--primary-soft);color:var(--ink)}.panel-shell{min-width:0;min-height:calc(100vh - 158px);border:1px solid var(--line);border-radius:var(--radius);background:color-mix(in srgb,var(--surface),transparent 3%);box-shadow:0 18px 50px color-mix(in srgb,var(--ink),transparent 92%)}.tab-panel{min-height:calc(100vh - 158px);padding:clamp(24px,4vw,42px);animation:panel-in .22s ease both}.portfolio-panel{display:grid;align-content:center}@keyframes panel-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.section-heading{max-width:820px;margin-bottom:26px}.section-heading p:not(.eyebrow),.info-card p,.stack-card p,.cert-card p,.placeholder-card p,.state-card{color:var(--muted)}.split-heading{display:flex;max-width:none;align-items:end;justify-content:space-between;gap:20px}.strength-grid,.stack-grid,.placeholder-grid,.article-grid,.social-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.info-card,.stack-card,.cert-card,.compact-cert-card,.placeholder-card,.article-card,.social-card,.state-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface-raised)}.info-card,.stack-card,.placeholder-card,.article-card,.social-card,.state-card{padding:22px}.info-card{min-height:220px}.card-marker,.stack-icon{display:grid;width:34px;height:34px;margin-bottom:22px;place-items:center;border-radius:var(--radius);background:var(--primary-soft);color:var(--primary)}.card-marker:before{width:10px;height:10px;border-radius:999px;background:currentColor;content:""}.stack-card-header{display:flex;align-items:center;gap:12px}.stack-icon{margin:0;font-size:.72rem}.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0;padding:0;list-style:none}.tag-list li{padding:6px 9px;border:1px solid var(--line);border-radius:var(--radius);background:color-mix(in srgb,var(--surface),transparent 10%);color:var(--muted);font-size:.78rem;font-weight:900}.cert-section+.cert-section{margin-top:34px}.cert-section>h3{margin-bottom:16px}.aws-cert-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.cert-card{display:grid;grid-template-columns:minmax(160px,auto) minmax(0,1fr);gap:22px;padding:18px;align-items:center}.credly-badge-frame{display:grid;min-height:290px;place-items:center;border-radius:var(--radius);background:color-mix(in srgb,var(--bg-soft),transparent 20%)}.cert-level{display:inline-flex;margin-bottom:12px;padding:5px 8px;border:1px solid var(--line);border-radius:var(--radius);color:var(--accent);font-size:.78rem;font-weight:900;text-transform:uppercase}.programming-cert-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.compact-cert-card{display:grid;gap:8px;min-height:126px;padding:20px}.compact-cert-card span,.placeholder-card span,.article-meta,.social-label{color:var(--accent);font-size:.78rem;font-weight:900;text-transform:uppercase}.placeholder-card{min-height:220px}.article-meta{display:flex;justify-content:space-between;gap:12px;margin-bottom:18px}.article-card h3 a:hover,.social-card:hover .social-label{color:var(--primary)}.state-card{margin:0;font-weight:800}.social-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.social-card{display:flex;min-height:150px;flex-direction:column;justify-content:space-between}.social-card-header{display:flex;align-items:center;gap:12px}.social-icon{display:grid;width:42px;height:42px;flex:0 0 auto;place-items:center;border:1px solid var(--line);border-radius:var(--radius);background:color-mix(in srgb,var(--surface),transparent 10%);color:var(--ink)}.social-icon svg{width:19px;height:19px}.social-icon img{display:block;width:30px;height:30px;object-fit:contain}.social-icon-github,.social-icon-x{background:var(--ink);color:var(--surface)}.social-icon-qiita{background:#55c500;border-color:color-mix(in srgb,#55c500,var(--line) 30%)}.social-icon-credly{color:var(--primary);font-size:.76rem;font-weight:900}.social-card strong{display:block;color:var(--ink);font-size:1.18rem}@media(max-width:980px){.site-header{position:static}.tab-list{grid-template-columns:repeat(3,1fr)}.portfolio-hero{grid-template-columns:1fr}.strength-grid,.stack-grid,.placeholder-grid,.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.aws-cert-grid,.cert-card{grid-template-columns:1fr}}@media(max-width:680px){.site-header{padding-inline:14px}.workspace{width:min(100% - 28px,1180px)}.metrics,.tab-list,.strength-grid,.stack-grid,.placeholder-grid,.article-grid,.programming-cert-grid,.social-grid{grid-template-columns:1fr}.tab-list{grid-template-columns:repeat(2,minmax(0,1fr))}.metrics div{border-right:0;border-bottom:1px solid var(--line)}.metrics div:last-child{border-bottom:0}.split-heading{display:grid;align-items:start}.hero-actions .button,.split-heading .button{width:100%}.tab-panel{padding:20px}.profile-facts div{grid-template-columns:1fr}.theme-text{display:none}}