:root{--brand: #4a72e8;--brand-dark: #3a5fd0;--ink: #edf1fb;--muted: #93a0be;--bg: #0d1220;--card: #141926;--elev: #1d2434;--elev-hi: #232c40;--line: #2a3450;--danger: #ef6a6a;--pink: #d83a7d;font-family:Hiragino Sans,Noto Sans JP,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}.shell{max-width:430px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;justify-content:flex-start;padding:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 16px 48px #00000059;display:flex;flex-direction:column;gap:16px}.card.center{align-items:center;text-align:center;margin-top:15dvh}h1{font-size:1.25rem;margin:0}.row{display:flex;align-items:center;gap:12px}.space-between{justify-content:space-between}.full{width:100%}.balance{text-align:center;padding:16px 0 4px;font-variant-numeric:tabular-nums}.balance strong{font-size:2.75rem;font-weight:750}.balance .unit{margin-left:8px;color:var(--muted);font-size:1rem;font-weight:600}.actions{justify-content:center}button,.button-link{font:inherit;border:none;border-radius:999px;padding:12px 22px;cursor:pointer;background:var(--elev);color:var(--ink);text-decoration:none}button:hover,.button-link:hover{background:var(--elev-hi)}button.primary,.button-link.primary{background:var(--brand);color:#fff;font-weight:700}button.primary:hover,.button-link.primary:hover{background:var(--brand-dark)}button:disabled{opacity:.5;cursor:not-allowed}button.ghost{background:transparent;color:var(--muted);border:1px solid var(--line);padding:10px 16px}button.ghost:hover{background:transparent;color:var(--ink);border-color:var(--muted)}button.chip{background:var(--elev);border:1px solid var(--line);color:var(--ink);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.8rem;padding:8px 14px}button.chip:hover{background:var(--elev-hi)}button:focus-visible,input:focus-visible,.button-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.section-title{font-size:.78rem;font-weight:700;letter-spacing:.06em;color:var(--muted);margin:8px 0 0}.tokens{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.tokens li{background:var(--elev);border:1px solid var(--line);border-radius:16px;padding:14px 16px;font-variant-numeric:tabular-nums}label{display:flex;flex-direction:column;gap:6px;font-size:.85rem;color:var(--muted)}input,select{font:inherit;padding:12px 14px;background:var(--elev);border:1px solid var(--line);border-radius:12px;color:var(--ink)}input:focus{outline:2px solid var(--brand);outline-offset:-1px}.muted{color:var(--muted)}.small{font-size:.8rem}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;word-break:break-all}.error{color:var(--danger)}.qr{background:#fff;padding:10px;border-radius:16px}.overlay{position:fixed;inset:0;background:#050914b8;backdrop-filter:blur(2px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;font-weight:600}.spinner{width:36px;height:36px;border-radius:50%;border:4px solid var(--line);border-top-color:var(--brand);animation:spin .9s linear infinite}@media(prefers-reduced-motion:reduce){.spinner{animation-duration:2s}}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:var(--elev-hi);border:1px solid var(--line);color:var(--ink);border-radius:14px;padding:12px 16px;display:flex;gap:12px;align-items:center;max-width:min(90vw,420px)}.toast button{background:transparent;color:var(--brand);padding:0;font-weight:700}