.app{max-width:700px;margin:0 auto;padding:16px}.app__title{text-align:center;color:#d64541;font-size:1.8rem}.card-number-form{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:24px;display:flex}.card-number-form input{border:2px solid #ffb703;border-radius:999px;padding:8px 12px;font-size:1rem}.card-number-form button{color:#fff;cursor:pointer;background-color:#219ebc;border:none;border-radius:999px;padding:8px 20px;font-weight:700}.card-number-form button:disabled{cursor:not-allowed;background-color:#a9c9d4}.battle-arena__loading,.battle-arena__error{text-align:center}.battle-arena__error button{color:#fff;cursor:pointer;background-color:#219ebc;border:none;border-radius:999px;margin-top:8px;padding:8px 20px;font-weight:700}.battle-arena__cards{justify-content:center;gap:24px;margin-bottom:16px;display:flex}.card-preview{background:#fff;border-radius:12px;flex-direction:column;align-items:center;padding:8px;display:flex;box-shadow:0 2px 6px #0000001a}.card-preview__image{aspect-ratio:245/337;object-fit:contain;width:140px}.card-preview__name{text-align:center;margin:4px 0;font-size:.9rem}.battle-arena__log{max-width:500px;margin:0 auto;padding:0;list-style:none}.battle-arena__log li{background:#fff;border-radius:8px;margin-bottom:6px;padding:8px 12px;box-shadow:0 1px 3px #0000001a}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:Hiragino Maru Gothic ProN,Yu Gothic,system-ui,sans-serif}*{box-sizing:border-box}body{background-color:#eef6ff;margin:0}