.dynamic-bg{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;background:linear-gradient(-45deg,#1f2023,#2b2e34,#3a3c42,#2b2e34);background-size:400% 400%;animation:gradientShift 15s ease infinite}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.floating-orbs{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;pointer-events:none}.orb{position:absolute;border-radius:50%;filter:blur(40px);opacity:.1;animation:float 20s ease-in-out infinite}.orb:nth-child(1){width:300px;height:300px;background:radial-gradient(circle,#d8b099,transparent);top:10%;left:10%;animation-delay:0s}.orb:nth-child(2){width:400px;height:400px;background:radial-gradient(circle,#f4d4a6,transparent);top:60%;right:15%;animation-delay:-5s}.orb:nth-child(3){width:250px;height:250px;background:radial-gradient(circle,#d8b099,transparent);bottom:20%;left:20%;animation-delay:-10s}.orb:nth-child(4){width:350px;height:350px;background:radial-gradient(circle,#f4d4a6,transparent);top:30%;left:60%;animation-delay:-15s}@keyframes float{0%,to{transform:translateY(0) translate(0) scale(1)}25%{transform:translateY(-20px) translate(10px) scale(1.1)}50%{transform:translateY(-10px) translate(-15px) scale(.9)}75%{transform:translateY(15px) translate(5px) scale(1.05)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.auth-form{animation:fadeInUp .6s ease-out}.auth-input{background:#ffffff1a;border:1px solid rgba(216,176,153,.3);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s ease}.auth-input:focus{background:#ffffff26;border-color:#d8b099;box-shadow:0 0 0 3px #d8b09933}.auth-button{background:linear-gradient(135deg,#d8b099,#cfa989);transition:all .3s ease;transform:translateY(0)}.auth-button:hover{background:linear-gradient(135deg,#cfa989,#d8b099);transform:translateY(-2px);box-shadow:0 8px 25px #d8b0994d}.auth-button:active{transform:translateY(0)}.auth-card{background:#1f2023cc;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(216,176,153,.2);box-shadow:0 20px 40px #0000004d}.auth-link{color:#d8b099;transition:all .3s ease}.auth-link:hover{color:#f4d4a6;text-shadow:0 0 10px rgba(216,176,153,.5)}.auth-checkbox{accent-color:#d8b099}@media (max-width: 640px){.auth-card{margin:1rem;padding:1.5rem}}