:root{--background-image:url(/light-texture-bg.png);--background-color:#fff;--text-color:#333;--heading-color:#222;--card-bg:#eeeeee;--card-shadow:0 4px 6px rgba(0,0,0,0.1);--button-bg:#333;--button-text:#fff;--button-bg-hover:#555;--link-color:#0070f3;--link-hover-color:#0051a8;--accent-pink:#e94e8a;--accent-pink-rgb:233,78,138;--accent-purple:#8a4ee9;--accent-blue:#4e8ae9;--accent-blue-rgb:78,138,233;--error-color:#e94e4e;--error-color-rgb:233,78,78;--border-color:#e0e0e0;--input-bg:#f9f9f9;--text-secondary:#666;--font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;--font-family-thin:-apple-system-thin,BlinkMacSystemFont-thin,"Segoe UI Light","Roboto Light","Oxygen Light","Ubuntu Light","Cantarell Light","Open Sans Light","Helvetica Neue Light",sans-serif}[data-theme=dark]{--background-image:url(/dark-texture-bg.png);--background-color:#000;--text-color:#e0e0e0;--heading-color:#f0f0f0;--card-bg:#181818;--card-shadow:0 4px 6px rgba(0,0,0,0.3);--button-bg:#f0f0f0;--button-text:#222;--button-bg-hover:#ccc;--link-color:#3694ff;--link-hover-color:#5cacff;--accent-pink:#ff6ea9;--accent-pink-rgb:255,110,169;--accent-purple:#a76eff;--accent-blue:#6ea7ff;--accent-blue-rgb:110,167,255;--error-color:#ff6e6e;--error-color-rgb:255,110,110;--border-color:#333;--input-bg:#111;--text-secondary:#999;background-color:#000}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-attachment:fixed;background-size:cover;background-position:50%;color:var(--text-color);background-image:var(--background-image);background-color:var(--background-color);transition:background-image .5s ease-in-out,color .3s ease-in-out,background-color .3s ease-in-out;overflow-x:hidden}.container,body{margin:0;padding:0}.container{width:100%;height:100vh;position:relative}.theme-toggle{position:fixed;top:20px;right:20px;background-color:var(--button-bg);color:var(--button-text);border:none;border-radius:50%;width:50px;height:50px;font-size:1.5rem;cursor:pointer;z-index:1000;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 10px rgba(0,0,0,.2);transition:background-color .3s ease,color .3s ease}.theme-toggle:hover{background-color:var(--button-bg-hover)}.card{background-color:var(--card-bg);border-radius:8px;padding:2rem;margin-bottom:2rem;box-shadow:var(--card-shadow);transition:background-color .3s ease,box-shadow .3s ease}h1,h2,h3,h4,h5,h6{color:var(--heading-color)}a{color:var(--link-color);text-decoration:none;transition:color .3s ease}a:hover{color:var(--link-hover-color)}