:root {
            --primary-color: #4361ee;
            --primary-dark: #3a56d4;
            --primary-light: #eef2ff;
            --success-color: #1aa179;
            --dark-color: #4a4c5a;
            --light-color: #f8f9fc;
            --white: #ffffff;
            --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        }
        
        body {
            background-color: var(--light-color);
            font-family: 'Poppins', sans-serif;
            min-height: 100vh;
            display: flex;
            align-items: center;
            background-image: url('https://images.unsplash.com/photo-1552664730-d307ca884978?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
            overflow: hidden;
        }
        
        body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(67, 97, 238, 0.85);
            z-index: 0;
        }
        
        .login-container {
            max-width: 450px;
            margin: 0 auto;
            padding: 40px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            position: relative;
            z-index: 1;
            transform: translateY(20px);
            opacity: 0;
            animation: fadeInUp 0.6s forwards;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        
        @keyframes fadeInUp {
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }
        
        .login-header {
            text-align: center;
            margin-bottom: 35px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .login-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--primary-color);
            border-radius: 3px;
        }
        
        .login-header h2 {
            font-weight: 700;
            color: var(--dark-color);
            margin-bottom: 10px;
        }
        
        .login-header i {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            display: inline-block;
            background: var(--primary-light);
            width: 70px;
            height: 70px;
            line-height: 70px;
            border-radius: 50%;
            text-align: center;
        }
        
        .form-control {
            height: 50px;
            border-radius: 8px;
            border: 1px solid #e0e0e0;
            padding-left: 45px;
            transition: var(--transition);
        }
        
        .form-control:focus {
            box-shadow: 0 0 0 0.25rem rgba(67, 97, 238, 0.25);
            border-color: var(--primary-color);
        }
        
        .input-group-text {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 4;
            background: transparent;
            border: none;
            color: #a0a0a0;
        }
        
        .btn-login {
            background-color: var(--primary-color);
            color: var(--white);
            font-weight: 600;
            height: 50px;
            border-radius: 8px;
            border: none;
            transition: var(--transition);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .btn-login:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
        }
        
        .form-check-input:checked {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        
        .forgot-password {
            color: var(--dark-color);
            transition: var(--transition);
            text-decoration: none;
            font-size: 0.9rem;
        }
        
        .forgot-password:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        
        .register-link {
            color: var(--primary-color);
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .register-link:hover {
            text-decoration: underline;
            color: var(--primary-dark);
        }
        
        .floating-shapes {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 0;
        }
        
        .shape {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            animation: float 15s infinite linear;
        }
        
        .shape:nth-child(1) {
            width: 100px;
            height: 100px;
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }
        
        .shape:nth-child(2) {
            width: 150px;
            height: 150px;
            top: 60%;
            left: 80%;
            animation-delay: 2s;
        }
        
        .shape:nth-child(3) {
            width: 70px;
            height: 70px;
            top: 80%;
            left: 20%;
            animation-delay: 4s;
        }
        
        .shape:nth-child(4) {
            width: 120px;
            height: 120px;
            top: 30%;
            left: 70%;
            animation-delay: 6s;
        }
        
        @keyframes float {
            0% {
                transform: translateY(0) rotate(0deg);
            }
            50% {
                transform: translateY(-20px) rotate(180deg);
            }
            100% {
                transform: translateY(0) rotate(360deg);
            }
        }
        
        @media (max-width: 576px) {
            .login-container {
                margin: 20px;
                padding: 30px;
            }
            
            .login-header i {
                width: 60px;
                height: 60px;
                line-height: 60px;
                font-size: 2rem;
            }
        }