:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--app-platform-bg:#fff;--app-platform-fg:#1d1d1f;--app-platform-muted:#1d1d1f8c;--app-platform-border:#1d1d1f1f;--app-platform-active-bg:#1d1d1f14}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--app-platform-bg:#1c1c21;--app-platform-fg:#f5f5f7;--app-platform-muted:#f5f5f78c;--app-platform-border:#f5f5f724;--app-platform-active-bg:#f5f5f724}.app-platform-header{z-index:10;padding-top:env(safe-area-inset-top,0px);background:var(--app-platform-bg);color:var(--app-platform-fg);border-bottom:1px solid var(--app-platform-border);position:sticky;top:0}.app-platform-header-inner{align-items:center;gap:10px;height:44px;padding:0 12px 0 16px;display:flex}.app-platform-brand{color:inherit;flex-shrink:0;font-weight:600;text-decoration:none}.app-platform-app-name{white-space:nowrap;text-overflow:ellipsis;min-width:0;color:var(--app-platform-muted);flex:1;overflow:hidden}.app-platform-theme{border:1px solid var(--app-platform-border);border-radius:8px;flex-shrink:0;gap:2px;margin-left:auto;padding:2px;display:flex}.app-platform-theme-btn{width:34px;height:26px;color:var(--app-platform-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;place-items:center;padding:0;display:grid}.app-platform-theme-btn[aria-pressed=true]{background:var(--app-platform-active-bg);color:var(--app-platform-fg)}.app-platform-theme-btn:focus-visible{outline:2px solid var(--app-platform-fg);outline-offset:1px}body{background:var(--app-platform-bg,#f5f5f7);color:var(--app-platform-fg,#1d1d1f);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}.palette{box-sizing:border-box;max-width:600px;margin:0 auto;padding:16px}.preview{background:#7c3aed;border-radius:12px;height:200px;transition:background-color .2s}.controls{align-items:center;gap:12px;margin-top:16px;display:flex}#color-input{background:0 0;border:none;width:64px;height:44px;padding:0}#hex-value{font-size:18px;font-weight:600}