:root{--color-bg:#000000;--color-bg-alt:#101010;--color-bg-card:#1c1c1e;--color-bg-light:#f5f5f7;--color-text:#f5f5f7;--color-text-secondary:#86868b;--color-text-dark:#1d1d1f;--color-accent:#2997ff;--color-accent-hover:#0077ed;--color-green:#30d158;--color-orange:#ff9f0a;--color-purple:#bf5af2;--header-height:48px;--section-padding:100px;--max-width:980px;--max-width-wide:1200px}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,Helvetica Neue,Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,Segoe UI,Roboto,Arial,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.5;overflow-x:hidden;padding-top:var(--header-height)}a{color:var(--color-accent);text-decoration:none;transition:color 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