@import"https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+JP:wght@400;500;600;700&family=Manrope:wght@500;600;700;800&display=swap";:root{color-scheme:light;--paper: #f6f0e7;--paper-deep: #ece0d0;--panel: rgba(255, 252, 247, .84);--panel-strong: rgba(255, 255, 255, .9);--ink: #211b17;--ink-soft: rgba(33, 27, 23, .62);--ink-faint: rgba(33, 27, 23, .38);--line: rgba(54, 40, 28, .12);--line-strong: rgba(54, 40, 28, .18);--accent: #d7ccbc;--accent-strong: #b7a691;--shadow: 0 28px 80px rgba(78, 57, 36, .12)}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:IBM Plex Sans JP,sans-serif;color:var(--ink);background:radial-gradient(circle at top left,rgba(255,255,255,.58),transparent 24%),linear-gradient(180deg,#f8f2ea,#efe5d8 55%,#e5d6c2)}button,input{font:inherit}.app-root{position:relative;height:100vh;overflow:hidden}.ambient-grid{display:none}.studio-shell{position:relative;z-index:1;width:min(1620px,calc(100vw - 40px));margin:0 auto;padding:28px 0 36px;height:100vh;display:grid;grid-template-columns:minmax(360px,480px) minmax(0,1fr);gap:24px}.composer-panel,.dialog-panel,.reasoning-panel{min-height:0;background:linear-gradient(180deg,var(--panel-strong),var(--panel));border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.composer-panel{position:sticky;top:20px;align-self:start;padding:22px}.dialog-panel{display:flex;flex-direction:column;padding:18px;overflow:hidden}.workspace-shell{min-width:0;min-height:0;display:grid;grid-template-columns:minmax(0,1fr);gap:20px;position:relative}.workspace-shell.is-reasoning-open{grid-template-columns:minmax(0,1fr) minmax(300px,360px)}.reasoning-panel{display:flex;flex-direction:column;padding:0;overflow:hidden;background:linear-gradient(180deg,#fffdf9f2,#f7f0e7f5);border-color:#36281c1a;box-shadow:0 24px 52px 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