:root{--background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);--accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--surface: rgba(255, 255, 255, .95);--text-primary: #333;--text-secondary: #666;--button-bg: #007bff;--button-text: white;--card-bg: white;--card-shadow: 0 4px 6px rgba(0, 0, 0, .1);--border-color: #ddd;--tag-bg: #f0f0f0;--tag-hover: #e0e0e0;--transition-duration: .3s}[data-theme=dark]{--background: linear-gradient(135deg, #121212 0%, #1e1e1e 100%);--accent-gradient: linear-gradient(135deg, #764ba2 0%, #667eea 100%);--surface: rgba(35, 35, 35, .95);--text-primary: #eee;--text-secondary: #bbb;--button-bg: #3b82f6;--button-text: white;--card-bg: #2a2a2a;--card-shadow: 0 4px 6px rgba(0, 0, 0, .3);--border-color: #444;--tag-bg: #3a3a3a;--tag-hover: #4a4a4a}body,button,.app-container,.tabs,header,main,.account-container,.name-tag{transition:all var(--transition-duration) ease}body{font-size:16px;margin:0;padding:0;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--background);color:var(--text-primary)}button{font-size:16px;padding:10px 20px;background-color:var(--button-bg);color:var(--button-text);border:none;border-radius:4px;cursor:pointer;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,Roboto,Helvetica Neue,Arial,sans-serif}.tag-value[title]:hover:after{bottom:auto;top:100%}.name-tag{display:inline-block;padding:4px 8px;background-color:var(--tag-bg);border-radius:4px;font-size:.9em;color:var(--text-primary);margin:2px}.name-tag:hover{background-color:var(--tag-hover)}.account-name{font-weight:700;font-size:1.4em;margin-bottom:4px;display:block;color:var(--text-primary)}.account-address{color:var(--text-secondary);font-size:.85em;font-family:monospace;margin-bottom:12px;display:block}.account-container{margin-bottom:16px;padding:16px;border:1px solid var(--border-color);border-radius:4px;display:flex;flex-direction:column;background:var(--surface);box-shadow:var(--card-shadow)}.account-details{margin-top:8px}.theme-toggle{background:none;border:none;cursor:pointer;padding:8px;display:flex;align-items:center;justify-content:center;color:var(--text-primary);border-radius:50%;transition:all .3s ease}.theme-toggle:hover{background-color:#8080801a}.theme-toggle svg{width:24px;height:24px}