*{box-sizing:border-box;margin:0;padding:0}:root{--primary-light:#5f6caf;--secondary-light:#e7eaf6;--text-light:#333;--background-light:#f8f9fa;--accent-light:#38b2ac;--primary-dark:#bb86fc;--secondary-dark:#3a3f58;--text-dark:#e2e8f0;--background-dark:#121212;--accent-dark:#03dac6;--transition-speed:.5s}body{font-family:Poppins,sans-serif;line-height:1.6;transition:background-color .6s,color .6s;overflow-x:hidden}body.light-theme{background-color:var(--background-light);color:var(--text-light)}body.dark-theme{background-color:var(--background-dark);color:var(--text-dark)}.theme-flash-overlay{z-index:9999;pointer-events:none;opacity:0;will-change:opacity;animation:.55s ease-out forwards theme-flash;position:fixed;inset:0}.theme-flash-overlay.to-dark{background:radial-gradient(circle at var(--cx)var(--cy),#bb86fc59 0%,#121212b3 50%,#12121266 100%)}.theme-flash-overlay.to-light{background:radial-gradient(circle at var(--cx)var(--cy),#38b2ac59 0%,#f8f9fab3 50%,#f8f9fa66 100%)}@keyframes theme-flash{0%{opacity:0}25%{opacity:1}to{opacity:0}}.theme-particle{pointer-events:none;z-index:10000;will-change:transform,opacity;opacity:0;border-radius:50%;position:fixed}.theme-particle.to-dark{background:var(--primary-dark);box-shadow:0 0 6px var(--accent-dark)}.theme-particle.to-light{background:var(--primary-light);box-shadow:0 0 6px var(--accent-light)}.theme-particle.active{animation:particle-fly var(--p-dur,.6s)cubic-bezier(.22,.61,.36,1)forwards}@keyframes particle-fly{0%{opacity:1;transform:translate(0)scale(1)}to{opacity:0;transform:var(--p-end)scale(0)}}