.theme-spring{--sky-gradient-from:#1a0b2e;--sky-gradient-to:#2d1b69;--cloud-color:#c4b5fd;--tree-leaves-from:#6b46c1;--tree-leaves-via:#8b5cf6;--tree-leaves-to:#a855f7;--grass-from:#312e81;--grass-via:#4c1d95;--grass-to:#1e1b4b;--particle-color:#c4b5fd;--sun-from:#fbbf24;--sun-via:#f59e0b;--sun-to:#d97706}.theme-summer{--sky-gradient-from:#0f0520;--sky-gradient-to:#1e0a3e;--cloud-color:#e879f9;--tree-leaves-from:#7c3aed;--tree-leaves-via:#8b5cf6;--tree-leaves-to:#a855f7;--grass-from:#4c1d95;--grass-via:#6b46c1;--grass-to:#312e81;--particle-color:#f0abfc;--sun-from:#fef3c7;--sun-via:#fcd34d;--sun-to:#f59e0b}.theme-fall{--sky-gradient-from:#2e1065;--sky-gradient-to:#581c87;--cloud-color:#d8b4fe;--tree-leaves-from:#a21caf;--tree-leaves-via:#c026d3;--tree-leaves-to:#d946ef;--grass-from:#581c87;--grass-via:#7c2d92;--grass-to:#4c1d95;--particle-color:#f0abfc;--sun-from:#f0abfc;--sun-via:#e879f9;--sun-to:#d946ef}.theme-winter{--sky-gradient-from:#0c0a1a;--sky-gradient-to:#1e1b4b;--cloud-color:#a5b4fc;--tree-leaves-from:#1e1b4b;--tree-leaves-via:#312e81;--tree-leaves-to:#4338ca;--grass-from:#0f0f23;--grass-via:#1e1b4b;--grass-to:#312e81;--particle-color:#c7d2fe;--sun-from:#c7d2fe;--sun-via:#a5b4fc;--sun-to:#818cf8}@keyframes starTwinkle{0%,to{opacity:.3;transform:scale(1)}50%{opacity:1;transform:scale(1.2)}}@keyframes nebulaDrift{0%{transform:translateY(-10px) translateX(0) rotate(0deg);opacity:0}20%{opacity:.8}to{transform:translateY(100vh) translateX(50px) rotate(180deg);opacity:0}}@keyframes cosmicFloat{0%,to{transform:translateY(0) translateX(0) rotate(0deg)}25%{transform:translateY(-30px) translateX(20px) rotate(90deg)}50%{transform:translateY(0) translateX(40px) rotate(180deg)}75%{transform:translateY(30px) translateX(20px) rotate(270deg)}}@keyframes plasmaPulse{0%,to{transform:scale(1);opacity:.6}50%{transform:scale(1.3);opacity:1}}.snowflake{animation:starTwinkle 2s ease-in-out infinite;background:radial-gradient(circle,#a5b4fc,#818cf8)!important}.falling-leaf{animation:nebulaDrift 12s ease-in-out infinite;background:radial-gradient(circle,#c4b5fd,#8b5cf6)!important}.cherry-blossom{animation:cosmicFloat 15s ease-in-out infinite;background:radial-gradient(circle,#f0abfc,#e879f9)!important}.butterfly{animation:plasmaPulse 3s ease-in-out infinite}.cosmic-stars{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1}.star{background:#fff;animation:starTwinkle 3s ease-in-out infinite}.nebula-cloud,.star{position:absolute;border-radius:50%}.nebula-cloud{filter:blur(2px);opacity:.3;animation:cosmicFloat 20s ease-in-out infinite}