.auth-container{display:flex;min-height:100vh;background:#0f1b35}.left-panel{flex:1;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(145deg,#0f1b35,#1e3a6e,#1e40af);overflow:hidden;padding:3rem 2rem}.right-panel{width:480px;max-width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#fff;padding:3rem 2.5rem}.particles{position:absolute;inset:0;pointer-events:none}.particle{position:absolute;border-radius:50%;background:#ffffff1f;animation:float linear infinite}@keyframes float{0%{transform:translateY(0) scale(1);opacity:0}20%{opacity:1}80%{opacity:1}to{transform:translateY(-110vh) scale(.4);opacity:0}}@media(max-width:900px){.left-panel{display:none}.right-panel{width:100%}}@media(max-width:480px){.right-panel{padding:2rem 1.25rem}}.btn-login{width:100%;padding:.85rem;border:none;border-radius:12px;background:linear-gradient(135deg,#1e40af,#2563eb);color:#fff;font-weight:700;transition:all .25s}.btn-login:hover{transform:translateY(-1px);box-shadow:0 8px 24px #2563eb59}