Create a square t-shirt graphic design with the following concept:

Title: Samurai Salmon Showdown
Slogan: Defend the Cosmos — One Splash at a Time
Visual style: Surreal line art with pastel gradient fills and grainy texture; clean, bold silhouette with misty portal effects
Mood: Slightly unsettling, quirky, and aggressive energy
Core concept prompt: Center composition featuring a surreal line art samurai salmon wielding a cosmic basketball as a weapon, lines sharp and flowing, pastel gradient colors with grainy texture overlay; background minimal with mist emissions and faint portal shapes swirling behind; large bold text beneath reading 'Defend the Cosmos — One Splash at a Time' in large, readable typography

Hard constraints:
- Keep composition centered and shirt-print friendly.
- Use high-contrast, clear forms suitable for print.
- Any text must be large and easily readable.
- Exclude all forbidden elements: real brand logos, celebrities, political slogans, explicit content, tiny text, real animals in naturalistic style
- Do not include real brand names/logos, celebrity likenesses, copyrighted characters, political campaign slogans, hateful content, or explicit content.

Output a clean standalone design graphic, no mockup, no watermark, no background scene.

Create a square t-shirt graphic design with the following concept:

Title: Samurai Salmon Showdown
Slogan: Defend the Cosmos — One Splash at a Time
Visual style: Surreal line art with pastel gradient fills and grainy texture; clean, bold silhouette with misty portal effects
Mood: Slightly unsettling, quirky, and aggressive energy
Core concept prompt: Center composition featuring a surreal line art samurai salmon wielding a cosmic basketball as a weapon, lines sharp and flowing, pastel gradient colors with grainy texture overlay; background minimal with mist emissions and faint portal shapes swirling behind; large bold text beneath reading 'Defend the Cosmos — One Splash at a Time' in large, readable typography

Hard constraints:
- Keep composition centered and shirt-print friendly.
- Use high-contrast, clear forms suitable for print.
- Any text must be large and easily readable.
- Exclude all forbidden elements: real brand logos, celebrities, political slogans, explicit content, tiny text, real animals in naturalistic style
- Do not include real brand names/logos, celebrity likenesses, copyrighted characters, political campaign slogans, hateful content, or explicit content.

Output a clean standalone design graphic, no mockup, no watermark, no background scene.