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(max-width:768px){.header-content{align-items:stretch;flex-direction:column;gap:16px}.app-title{font-size:1.5rem;line-height:1.3;margin-bottom:16px;padding-bottom:2px;text-align:center}.header-controls{flex-direction:column;gap:8px}.approach-selector,.history-button,.logout-button{justify-content:center;width:100%}}.App,.container{min-height:100vh;position:relative;z-index:1}.container{display:flex;flex-direction:column;margin:0 auto;max-width:800px;padding:20px}.main-content{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:var(--bg-elevated);background:#fffffffa;border:1px solid #0000000a;border-radius:var(--radius-xl);box-shadow:var(--shadow-elegant);flex:1 1;margin:0;overflow:hidden;padding:80px 60px;position:relative}.main-content:before{background:linear-gradient(90deg,var(--accent-primary) 0,var(--accent-hover) 100%);content:"";height:2px;left:0;position:absolute;right:0;top:0}@media (max-width:768px){.container{padding:15px}.main-content{border-radius:var(--radius-lg);padding:40px 30px}}