:root{--bg-dark:#1e1e1e;--bg-surface:#252526;--accent-primary:#00ff9f;--accent-secondary:#0f5;--text-main:#e5e5e5;--text-muted:#9ca3af;--border-color:#2d2d2d}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}body{background:linear-gradient(135deg,var(--bg-dark) 0,#16161e 100%);color:var(--text-main);min-height:100vh}.app-container{display:flex;flex-direction:column;min-height:100vh}.app-footer,.app-header{background:hsla(0,0%,100%,.05);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid hsla(0,0%,100%,.1);padding:1rem 0}.app-footer{border-bottom:none;border-top:1px solid hsla(0,0%,100%,.1);text-align:center}.header-content{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:0 2rem}.app-title{font-size:2.5rem;font-weight:700;color:var(--text-main);text-shadow:2px 2px 4px rgba(0,0,0,.5)}.auth-section{display:flex;align-items:center;gap:1rem}.auth-loading{color:var(--text-muted);font-size:.875rem}.user-details,.user-info{display:flex;align-items:center;gap:1rem}.user-avatar{width:32px;height:32px;border-radius:50%;border:2px solid hsla(0,0%,100%,.2)}.btn-signin,.btn-signout,.user-name{color:var(--text-main);font-size:.875rem;font-weight:500}.btn-signin,.btn-signout{background:hsla(0,0%,100%,.1);border:1px solid hsla(0,0%,100%,.2);padding:.5rem 1rem;border-radius:6px;cursor:pointer;transition:all .2s ease}.btn-signin:hover,.btn-signout:hover{background:hsla(0,0%,100%,.2);transform:translateY(-1px)}.app-main{flex:1 1;padding:2rem 0}.app-footer .version-info{color:var(--text-muted);font-size:.875rem;font-weight:500;display:block}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 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