.theme-toggle{position:fixed;bottom:26px;left:15px;width:38px;height:38px;background:rgba(255,255,255,.05);backdrop-filter:blur(15px) saturate(160%);-webkit-backdrop-filter:blur(15px) saturate(160%);border:1px solid rgba(255,255,255,.2);border-radius:50%;display:flex;justify-content:center;align-items:center;font-size:1.1rem;box-shadow:0 4px 16px rgba(0,0,0,.3);z-index:999;transition:transform .2s ease}.theme-toggle:hover{transform:scale(1.1);background:rgba(255,255,255,.1)}[data-theme=dark] .theme-toggle:hover{background:rgba(255,255,255,.15)}.navbar-wrapper{width:100vw;z-index:1;background-color:aqua;height:auto}.bottom-navbar{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:30px;padding:12px 24px;border-radius:30px;background:rgba(255,255,255,.05);backdrop-filter:blur(15px) saturate(160%);-webkit-backdrop-filter:blur(15px) saturate(160%);border:1px solid rgba(255,255,255,.2);box-shadow:0 8px 32px rgba(0,0,0,.37);z-index:998}.nav-icon{display:flex;flex-direction:column;align-items:center;position:relative;color:inherit;text-decoration:none;padding:8px;transition:transform .2s ease}.nav-icon span{position:absolute;bottom:-28px;background:rgba(0,0,0,.6);color:#fff;padding:4px 8px;border-radius:6px;font-size:12px;white-space:nowrap;opacity:0;transform:translateY(5px);pointer-events:none;transition:all .3s ease}.nav-icon:hover span{opacity:1;transform:translateY(0)}.nav-icon.active{background:rgba(255,255,255,.1);border-radius:16px;box-shadow:0 4px 12px rgba(255,255,255,.15)}@media (max-width:600px){.bottom-navbar{gap:20px;padding:8px 15px}.nav-icon span{display:none}}:root{--primary-color:#3498db;--secondary-color:#2980b9;--text-color:#333;--bg-color:#fff;--header-bg:#fff;--footer-bg:#f1f1f1;--card-bg:#fff;--card-shadow:0 2px 4px rgba(0,0,0,0.1)}body:before{content:"";position:fixed;top:0;left:0;width:100vw;height:100vh;background-image:repeating-linear-gradient(0deg,rgba(9,183,218,.2),transparent 1px,transparent 40px),repeating-linear-gradient(90deg,rgba(9,183,218,.2),transparent 1px,transparent 40px),radial-gradient(circle at 20% 40%,rgba(0,213,255,.1) 0,transparent 30%),radial-gradient(circle at 60% 40%,rgba(0,213,255,.1) 0,transparent 30%);background-size:100% 100%;z-index:-1;pointer-events:none;opacity:1;filter:blur(.5px)}[data-theme=dark]{--primary-color:#5dade2;--secondary-color:#3498db;--text-color:#fff;--bg-color:#1a2a3a;--header-bg:#2c3e50;--footer-bg:#2c3e50;--card-bg:#2c3e50;--card-shadow:0 2px 4px rgba(0,0,0,0.3)}*{margin:0;padding:0;box-sizing:border-box;transition:background-color .3s,color .3s}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:var(--text-color);background-color:var(--bg-color);line-height:1.6}.layout{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1 1;margin:0 auto}a{color:var(--primary-color);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{margin-bottom:1rem;line-height:1.2}h1{font-size:2.5rem}h2{font-size:2rem}.prose{max-width:100%}.prose p{margin-bottom:1.5em;line-height:1.7}.prose img{border-radius:.75rem}