:root{--bg-color: #ffffff;--text-color: #213547;--btn-bg: #f9f9f9;--table-bg: #ffffff;--table-text: #213547;--table-header-bg: #007bff;--table-header-text: white;--table-border: #ddd;--table-row-alt: #f8f9fa}[data-theme=dark]{--bg-color: #242424;--text-color: rgba(255, 255, 255, .87);--btn-bg: #1a1a1a;--table-bg: #1e1e1e;--table-text: #f8f9fa;--table-header-bg: #0056b3;--table-header-text: white;--table-border: #444;--table-row-alt: #2a2a2a}html,body{width:100%;height:100%;margin:0;padding:0;overflow-x:hidden;background-color:var(--bg-color);color:var(--text-color);transition:background-color .3s ease,color .3s ease}button{background-color:var(--btn-bg);border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;cursor:pointer;transition:border-color .25s,background-color .25s,color .25s}button:hover{border-color:#646cff}.theme-toggle{position:fixed;top:20px;right:20px;background:none;border:none;font-size:1.5em;cursor:pointer;color:inherit}.appContainer{width:100%;min-height:100vh;padding:20px;background:var(--bg-color);display:flex;flex-direction:column;align-items:center;justify-content:flex-start}.appContent{width:80%;max-width:1600px;margin:0 auto;padding:20px;box-shadow:0 4px 10px var(--shadow-color);border-radius:8px;background:var(--content-bg);overflow-x:auto;display:flex;flex-direction:column;align-items:center;justify-content:center}.title{font-size:32px;font-weight:700;color:var(--text-color);text-align:center;margin:40px 0;position:relative;top:0;left:0;transform:none}