.callback-container{min-height:80vh;display:flex;align-items:center;justify-content:center;padding:2rem 1rem}.callback-card{background:#fff;border-radius:12px;box-shadow:0 8px 32px #0000001a;padding:3rem;max-width:400px;width:100%;text-align:center}.callback-card.error{border-left:4px solid #e74c3c}.callback-card h2{margin-bottom:1rem;color:#2c3e50}.callback-card.error h2{color:#e74c3c}.callback-card p{color:#666;margin-bottom:2rem;line-height:1.5}.loading-spinner{width:50px;height:50px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 2rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.retry-btn{background-color:#667eea;color:#fff;border:none;padding:1rem 2rem;border-radius:8px;font-size:1rem;cursor:pointer;transition:background-color .3s ease}.retry-btn:hover{background-color:#5a67d8}.app-container{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;padding:20px;max-width:1400px;margin:0 auto;width:100%}:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:var(--text-primary, #F5ECE1);background-color:var(--bg-default, #140E0A);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:var(--color-primary, #E2B96F);text-decoration:inherit}a:hover{color:var(--color-primary-hover, #F0D49C)}body{margin:0;min-width:320px;min-height:100vh;background-color:var(--bg-default, #140E0A);color:var(--text-primary, #F5ECE1)}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid var(--border-color, transparent);padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--bg-subtle, #2D2018);color:var(--text-primary, inherit);cursor:pointer;transition:border-color .25s}button:hover{border-color:var(--color-primary, #E2B96F)}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}