:root{--color-bg:#b3c3e4;--color-bg-light:#ccd8f0;--color-surface:#ffffff;--color-surface-tint:#f0f4fc;--color-surface-dim:#e4eaf8;--color-primary:#4d54c4;--color-primary-strong:#3d44ad;--color-primary-soft:#6b72d6;--color-primary-faint:#dfe3f8;--color-text:#2e3452;--color-text-muted:#7c86ab;--color-text-on-primary:#ffffff;--color-text-on-primary-muted:#c3c8f0;--color-danger:#e2606a;--color-danger-faint:#fdeef0;--color-success:#59c26f;--radius-sm:12px;--radius-md:18px;--radius-lg:28px;--radius-xl:36px;--radius-pill:999px;--shadow-card:0 18px 40px -18px rgba(61,76,140,0.45);--shadow-float:0 8px 20px -8px rgba(61,76,140,0.4);--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Hiragino Sans",Meiryo,sans-serif;--content-width:960px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{min-height:100vh;font-family:var(--font-sans);color:var(--color-text);background:linear-gradient(160deg,var(--color-bg-light) 0,var(--color-bg) 55%,#a5b8de 100%);line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}a{color:inherit;text-decoration:none}