body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.login-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 1rem;
    text-align: center;
    border-radius: 20px 20px 0 0;
}

.login-header i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.login-form {
    padding: 2.5rem;
}

.form-floating {
    margin-bottom: 1.5rem;
}

.form-floating > .form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
}

.form-floating > label {
    color: #6c757d;
}

.btn-login {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 50px;
    padding: 12px 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.btn-login:active {
    transform: translateY(0);
}

.input-group-text {
    background: transparent;
    border-right: none;
    color: #667eea;
}

.form-control {
    border-left: none;
    border-radius: 10px;
}

.input-group .form-control:focus {
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
    border-color: #667eea;
}

.alert {
    border-radius: 10px;
    border: none;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: #764ba2;
    text-decoration: underline;
}

.login-footer {
    text-align: center;
    padding: 1rem;
    color: #6c757d;
    font-size: 0.85rem;
}

@media (max-width: 576px) {
    .login-container {
        margin: 1rem;
        border-radius: 15px;
    }

    .login-header {
        padding: 1.5rem;
    }

    .login-form {
        padding: 2rem 1.5rem;
    }
}