:root{--primary: #1565c0;--primary-container: #d3e3fd;--on-primary: #ffffff;--on-primary-container: #001d35;--secondary: #0277bd;--secondary-container: #c8e6f7;--tertiary: #00897b;--tertiary-container: #b2dfdb;--surface: #ffffff;--surface-container: #f5f5f5;--surface-container-high: #ececec;--surface-container-highest: #e0e0e0;--on-surface: #1c1b1f;--on-surface-variant: #49454f;--error: #ba1a1a;--error-container: #ffdad6;--on-error: #ffffff;--outline: #79747e;--shadow: rgba(0, 0, 0, .1);--direction-0: #1976d2;--direction-1: #00897b;font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic,Meiryo,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media(prefers-color-scheme:dark){:root{--primary: #a8c7fa;--primary-container: #004a77;--on-primary: #003258;--on-primary-container: #d3e3fd;--surface: #1c1b1f;--surface-container: #2b2930;--surface-container-high: #36343b;--surface-container-highest: #413f47;--on-surface: #e6e1e5;--on-surface-variant: #cac4d0;--error: #ffb4ab;--error-container: #93000a;--outline: #938f99;--shadow: rgba(0, 0, 0, .3)}}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-height:100vh;background-color:var(--surface-container);color:var(--on-surface)}#root{min-height:100vh;display:flex;flex-direction:column}.card{background-color:var(--surface);border-radius:12px;padding:16px;box-shadow:0 2px 4px var(--shadow);transition:box-shadow .2s ease}.card:hover,.card-elevated{box-shadow:0 4px 8px var(--shadow)}.btn{padding:12px 24px;min-height:44px;border:none;border-radius:24px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 2px 4px 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