:root{--primary-gradient:linear-gradient(135deg, #68d391 0%, #38a169 100%);--primary-color:#48bb78;--primary-light:#9ae6b4;--card-shadow:0 10px 40px rgba(0, 0, 0, 0.15);--card-shadow-hover:0 15px 50px rgba(0, 0, 0, 0.2)}*{transition:all .3s ease}body{background:var(--primary-gradient);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,sans-serif}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}.login-card{max-width:420px;width:100%;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border:none;border-radius:20px;box-shadow:var(--card-shadow)}.login-card:hover{box-shadow:var(--card-shadow-hover)}.login-logo{width:80px;height:80px;background:var(--primary-gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;box-shadow:0 8px 25px rgba(72,187,120,.4)}.login-logo i{font-size:2.5rem;color:#fff}.login-title{font-weight:700;color:#2d3748;margin-bottom:.5rem}.login-subtitle{color:#718096;font-size:.95rem;margin-bottom:2rem}.form-floating{margin-bottom:1.25rem}.form-floating>.form-control{border:2px solid #e2e8f0;border-radius:12px;height:58px;padding:1rem 1rem 1rem 3rem;font-size:1rem}.form-floating>.form-control:focus{border-color:#667eea;box-shadow:0 0 0 4px rgba(72,187,120,.1)}.form-floating>label{padding:1rem 1rem 1rem 3rem;color:#a0aec0}.input-icon{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:#a0aec0;z-index:5;font-size:1.1rem}.btn-login{background:var(--primary-gradient);border:none;border-radius:12px;padding:.875rem 1.5rem;font-weight:600;font-size:1rem;letter-spacing:.5px;box-shadow:0 4px 15px rgba(72,187,120,.4)}.btn-login:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(72,187,120,.5);background:linear-gradient(135deg,#764ba2 0,#667eea 100%)}.btn-login:active{transform:translateY(0)}.alert{border:none;border-radius:12px;padding:1rem 1.25rem}.alert-danger{background:#fff5f5;color:#c53030}.alert-success{background:#f0fff4;color:#276749}@media (max-width:576px){.login-card{border-radius:16px}.login-logo{width:70px;height:70px}.login-logo i{font-size:2rem}}