@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Noto+Sans+JP:wght@300;400;700&family=Noto+Serif+JP:wght@300;400;700&family=Zen+Kurenaido&family=Kaisei+Decol:wght@400;700&display=swap";:root{--bg:#0f0f14;--surface:#1a1a24;--border:#2a2a3a;--text:#e8e0ff;--muted:#6b6580;--accent:#7c6af7;--accent-dim:#3d3478;--success:#4ade80;--error:#ff4757;--font-ui:"Inter", sans-serif;--font-jp:"Noto Sans JP", sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font-ui);min-height:100vh}#app{flex-direction:column;align-items:center;width:100%;min-height:100vh;display:flex}header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;width:100%;padding:20px 32px;display:flex}.logo{letter-spacing:.12em;color:var(--accent);font-size:1.3rem;font-weight:600}.logo 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