:root{--color-bg:#14121a;--color-surface:#201d2a;--color-text:#e8e4f0;--color-text-dim:#a49cb8;--color-accent:#7c6af0;--color-accent-hover:#9384f5;--color-border:#3a3450;--color-error:#f07070}*{box-sizing:border-box}html,body,#root{min-height:100vh;margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic,sans-serif;line-height:1.8}.screen{flex-direction:column;max-width:720px;min-height:100vh;margin:0 auto;padding:24px 16px;display:flex}.button{text-align:left;width:100%;color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border);cursor:pointer;border-radius:8px;padding:14px 20px;font-size:16px;line-height:1.5;transition:border-color .15s,background-color .15s;display:block}.button:hover,.button:focus-visible{border-color:var(--color-accent);background:#2a2638}.button--primary{text-align:center;background:var(--color-accent);border-color:var(--color-accent);color:#fff}.button--primary:hover,.button--primary:focus-visible{background:var(--color-accent-hover)}.title-screen{text-align:center;justify-content:center}.title-screen__title{letter-spacing:.08em;margin:0 0 16px;font-size:32px}.title-screen__description{color:var(--color-text-dim);white-space:pre-wrap;margin:0 0 40px}.title-screen__buttons{flex-direction:column;gap:12px;width:100%;max-width:320px;margin:0 auto;display:flex}.title-screen__author{color:var(--color-text-dim);margin-top:48px;font-size:13px}.scene-view__image-frame{border:1px solid var(--color-border);border-radius:12px;margin-bottom:20px;overflow:hidden}.scene-view__image{aspect-ratio:16/9;object-fit:cover;width:100%;display:block}.scene-view__text{flex:1;margin-bottom:24px}.scene-view__text p{margin:0 0 .6em}.scene-view__choices{flex-direction:column;gap:10px;padding-bottom:24px;display:flex}.message-screen{color:var(--color-text-dim);justify-content:center;align-items:center}.message-screen--error h1{color:var(--color-error)}.message-screen .button{max-width:320px;margin-top:24px}.message-screen__detail{white-space:pre-wrap;word-break:break-word;color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;max-width:100%;padding:16px;font-family:inherit}