*{margin:0;padding:0;box-sizing:border-box}:root{--primary:#ffb600;--primary-hover:#ff8c00;--bg-dark:#0d0d0d;--bg-card:#1e1e1e;--text-main:#fff;--text-muted:#888;--font-size-h1:22px;--font-size-p:15px;--card-padding:50px 40px;--card-radius:20px;--spinner-size:56px;--progress-height:6px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(180deg,var(--bg-dark) 0,#1a1a1a 50%,#121212 100%);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.container{width:100%;max-width:480px}.card{background:linear-gradient(145deg,var(--bg-card) 0,#2a2a2a 100%);padding:var(--card-padding);border-radius:var(--card-radius);box-shadow:0 25px 60px rgba(0,0,0,.6);text-align:center;border:1px solid rgba(255,182,0,.15)}.spinner{width:var(--spinner-size);height:var(--spinner-size);border:4px solid #333;border-top:4px solid var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 28px}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}h1{color:var(--text-main);font-size:var(--font-size-h1);font-weight:700;margin-bottom:12px;text-transform:uppercase}p{color:var(--text-muted);font-size:var(--font-size-p);line-height:1.6}.progress{margin-top:32px;height:var(--progress-height);background:#333;border-radius:10px;overflow:hidden}.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),var(--primary-hover),var(--primary));background-size:200% 100%;border-radius:10px;animation:progress 2.5s ease-in-out infinite,shimmer 1.5s ease-in-out infinite}@keyframes progress{0%{width:0}50%{width:70%}to{width:100%}}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.footer{margin-top:24px;font-size:12px;color:#666}